Flash fabric having high tensile resilience

Abstract

A flash fabric having a high tensile resilience, including the polyethylene raw material. The gram weight G of the flash fabric is greater than 35 g/m.sup.2; the tensile resilience (RT) of the flash fabric is 40%-70%; and the aging toughness Z.sub.5 of the flash fabric is 5-15 (N.Math.m)/g, where Z.sub.5=[R.sub.M5E.sub.M5+R.sub.T5E.sub.T5]/G. By means of improvements of the spinning raw materials and the process, the comprehensive performance of the product is improved.

Claims

1. A flash fabric having a high tensile resilience, comprising the polyethylene raw material, the gram weight G of the flash fabric is greater than 35 g/m.sup.2; the tensile resilience (RT) of the flash fabric is 40%-70%; and the aging toughness Z.sub.5 of the flash fabric is 5-15 (N.Math.m)/g; wherein Z.sub.5=[R.sub.M5E.sub.M5+R.sub.T5E.sub.T5]/G; the technological process of aging treatment is as follows: (1) placing a sample under the conditions of 251 C. and the relative humidity of 652% for 24 hours, then measuring the tensile strength in the machine direction (MD) (denoted as R.sub.M), the tensile strength in the transverse direction (TD) (denoted as R.sub.T), the tensile elongation in the MD direction (denoted as E.sub.M), and the tensile elongation in the TD direction (denoted as E.sub.T) of the sample respectively; then calculating the initial toughness Z.sub.0 according to the formula; (2) then exposing the sample to a dry heat atmosphere at 901 C. for 6 hours, followed by cooling under the conditions of 251 C. and the relative humidity of 652% for 24 hours; and (3) finally, repeating the operation in step (2), and after four additional treatments, measuring the tensile strength in the MD direction (denoted as R.sub.M5), the tensile strength in the TD direction (denoted as R.sub.T5), the tensile elongation in the MD direction (denoted as E.sub.M5), and the tensile elongation in the TD direction (denoted as E.sub.T5) of the sample respectively; and calculating Z.sub.5 according to the formula; the tensile resilience (RT) is tested by the FB1 method of a KES fabric style tester.

2. The flash fabric having a high tensile resilience according to claim 1, wherein the gram weight G of the flash fabric is less than 70 g/m.sup.2.

3. The flash fabric having a high tensile resilience according to claim 1, wherein the tensile resilience of the flash fabric is 50%-55%.

4. The flash fabric having a high tensile resilience according to claim 1, wherein the tensile resilience of the flash fabric is 55%-60%.

5. The flash fabric having a high tensile resilience according to claim 1, wherein the aging toughness Z.sub.5 of the flash fabric is 8-10 (N.Math.m)/g.

6. The flash fabric having a high tensile resilience according to claim 1, wherein the aging toughness Z.sub.5 of the flash fabric is 10-12 (N.Math.m)/g.

7. The flash fabric having a high tensile resilience according to claim 1, wherein the aging toughness Z.sub.5 of the flash fabric is 12-14 (N.Math.m)/g.

8. The flash fabric having a high tensile resilience according to claim 1, wherein the toughness variation value Z of the flash fabric is 15%-45%; wherein Z=[Z.sub.0Z.sub.5]/Z.sub.0100% Z.sub.0 is the initial toughness, which is the sample's Z.sub.0=[R.sub.ME.sub.M+R.sub.TE.sub.T]/G; and Z.sub.5 is the final toughness after high-temperature treatment, and Z.sub.5=[R.sub.M5E.sub.M5+R.sub.T5E.sub.T5]/G.

9. The flash fabric having a high tensile resilience according to claim 8, wherein the toughness variation value Z of the flash fabric is 15%-20%.

10. The flash fabric having a high tensile resilience according to claim 9, wherein the toughness variation value Z of the flash fabric is 25%-30%.

11. The flash fabric having a high tensile resilience according to claim 1, characterized by exposing a polyethylene film material of the flash fabric to a dry heat atmosphere at 90 C. for 6 hours, followed by cooling under the conditions of 251 C. and the relative humidity of 652% for 24 hours; then measuring the transmittance T of the flash fabric to be 7%-15%; the transmittance test is conducted according to GBT2410-2008, and the transmittance T is the ratio of the luminous flux passing through the sample to the luminous flux incident on the sample, expressed as a percentage.

12. The flash fabric having a high tensile resilience according to claim 11, wherein the light transmittance T of the flash fabric is 9%-10%.

13. The flash fabric having a high tensile resilience according to claim 11, wherein the light transmittance T of the flash fabric is 10%-11%.

14. The flash fabric having a high tensile resilience according to claim 1, wherein a polymer spinning raw material further comprises a spinning aid, and the spinning aid is nano-hollow carbon spheres loaded with zinc oxide.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a structural schematic diagram of the present invention.

DETAILED DESCRIPTION

[0025] Below, the present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments of the specification.

Example 1

[0026] This example provided a flash fabric having a high tensile resilience. With reference to FIG. 1, the specific steps were as follows:

[0027] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.3%; the mass fraction of the polymer spinning raw material in the spinning solution was 7%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 50%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.3 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 2 hours.

[0028] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 10%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 8%. The test results of the prepared flash fabric were shown in Table 1.

Example 2

[0029] This example provided a flash fabric having a high tensile resilience. With reference to FIG. 1, the specific steps were as follows:

[0030] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.6%; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 52%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.4 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.25 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 3.5 hours.

[0031] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 15%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 11%. The test results of the prepared flash fabric were shown in Table 1.

Example 3

[0032] This example provided a flash fabric having a high tensile resilience. With reference to FIG. 1, the specific steps were as follows:

[0033] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.9%; the mass fraction of the polymer spinning raw material in the spinning solution was 15%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 55%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.45 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.5 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 5 hours.

[0034] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 20%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 14%. The test results of the prepared flash fabric were shown in Table 1.

Example 4

[0035] This example provided a flash fabric having a high tensile resilience. With reference to FIG. 1, the specific steps were as follows:

[0036] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polypropylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.3%; the mass fraction of the polymer spinning raw material in the spinning solution was 7%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 50%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.3 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 2 hours.

[0037] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant, when the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 10%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 8%. The test results of the prepared flash fabric were shown in Table 1.

Example 5

[0038] This example provided a flash fabric having a high tensile resilience. With reference to FIG. 1, the specific steps were as follows:

[0039] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polypropylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.6%; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 52%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.4 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.25 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 3.5 hours.

[0040] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 15%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 11%. The test results of the prepared flash fabric were shown in Table 1.

Example 6

[0041] This example provided a flash fabric having a high tensile resilience. With reference to FIG. 1, the specific steps were as follows:

[0042] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polypropylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.9%; the mass fraction of the polymer spinning raw material in the spinning solution was 15%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 55%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.45 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.5 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 5 hours.

[0043] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 20%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 14%. The test results of the prepared flash fabric were shown in Table 1.

Comparative Example 1

[0044] This comparative example provided a flash fabric. With reference to FIG. 1, the specific steps were as follows:

[0045] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1.

[0046] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 15%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 11%. The test results of the prepared flash fabric were shown in Table 1.

Comparative Example 2

[0047] This comparative example provided a flash fabric. With reference to FIG. 1, the specific steps were as follows:

[0048] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.15%; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 52%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.4 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.25 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 3.5 hours.

[0049] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 15%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 11%. The test results of the prepared flash fabric were shown in Table 1.

Comparative Example 3

[0050] This comparative example provided a flash fabric. With reference to FIG. 1, the specific steps were as follows:

[0051] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 1%; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 52%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.4 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.25 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 3.5 hours.

[0052] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 15%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 11%. The test results of the prepared flash fabric were shown in Table 1.

Comparative Example 4

[0053] This comparative example provided a flash fabric. With reference to FIG. 1, the specific steps were as follows:

[0054] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 1.2%; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 52%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.4 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.25 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 3.5 hours.

[0055] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 15%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 11%. The test results of the prepared flash fabric were shown in Table 1.

Comparative Example 5

[0056] This comparative example provided a flash fabric. With reference to FIG. 1, the specific steps were as follows:

[0057] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.6%; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 52%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.4 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.25 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 3.5 hours.

[0058] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23; and the water tank contained deionized water. The prepared flash fabric had multiple bright spots locally, which affected the final use of a product. The liquid content was 11%. The test results of the prepared flash fabric were shown in Table 1.

Comparative Example 6

[0059] This comparative example provided a flash fabric. With reference to FIG. 1, the specific steps were as follows:

[0060] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.6%; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 52%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.4 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.25 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 3.5 hours.

[0061] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 15%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 3%. The test results of the prepared flash fabric were shown in Table 1.

Comparative Example 7

[0062] This comparative example provided a flash fabric. With reference to FIG. 1, the specific steps were as follows:

[0063] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.6%; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 52%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.4 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.25 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 3.5 hours.

[0064] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 15%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 6%. The test results of the prepared flash fabric were shown in Table 1.

Comparative Example 8

[0065] This comparative example provided a flash fabric. With reference to FIG. 1, the specific steps were as follows:

[0066] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.6%; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 52%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.4 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.25 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 3.5 hours.

[0067] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 15%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 17%. The test results of the prepared flash fabric were shown in Table 1.

Comparative Example 9

[0068] This comparative example provided a flash fabric. With reference to FIG. 1, the specific steps were as follows:

[0069] (I) Preparation of a spinning solution: a polymer spinning raw material was dissolved in a spinning solvent to obtain a spinning solution; the polymer spinning raw material included polyethylene; a polymer spinning raw material further included a spinning aid; the spinning aid was nano-hollow carbon spheres loaded with zinc oxide; the mass fraction of the spinning aid in the polymer spinning raw material was 0.6%; the mass fraction of the polymer spinning raw material in the spinning solution was 9%; the spinning solvent was a mixture of trichlorofluoromethane, dichloromethane, 1,1-dichloro-1-fluoroethane, 1H,6H-perfluorohexane, and 1H-perfluorohexane at the mass ratio of 3:3:2:1:1. The inner hollow diameter of the nano-hollow carbon spheres was 70 nm-90 nm, and the specific surface area was 480 m.sup.2/g-550 m.sup.2/g. In the present application, the nano-hollow carbon spheres played a buffering role when a non-woven fabric was under stress. A preparation method for the nano-hollow carbon spheres loaded with zinc oxide included the following specific technical steps: the nano-hollow carbon spheres and zinc chloride were dispersed in an ethanol aqueous solution by means of microwave sonication, then an excess of ammonia water was added, a precipitate was filtered, and the precipitate was dried to obtain the nano-hollow carbon spheres loaded with zinc oxide. The volume fraction of ethanol in the ethanol aqueous solution was 52%; the molar fraction of zinc chloride in the ethanol aqueous solution was 0.4 mol/L; the molar fraction of the nano-hollow carbon spheres in the ethanol aqueous solution was 1.25 mol/L; the drying conditions were 180 C.-220 C., and the drying time was 3.5 hours.

[0070] (II) Preparation of the flash fabric: the flash spinning solution prepared in step (I) was passed through a decompression chamber, a spinning pack 1 was arranged at the outlet of the decompression chamber, the flash spinning solution was subjected to flash spinning through the spinning pack to obtain flash fibers, the flash fibers 3 entered a web-laying system 4 through a spinning baffle 2 to obtain an initial fabric; the initial fabric was subjected to preliminary pre-pressing by an upper pre-pressing roll 10 and a lower pre-pressing roll 11, then entered a water tank 6, and further passed through a transmission roll 12; the liquid content was controlled by a left squeeze roll 13 and a right squeeze roll 14 to obtain an intermediate fabric containing a surfactant; and the intermediate fabric containing the surfactant was passed sequentially through an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, and a lower hot-rolling roll 18, and finally formed into the flash fabric through a winder 23. The water tank contained a deionized aqueous solution with a surfactant. When the deionized water solution was pure deionized water, there was a technical problem of local bright spots during the subsequent hot-pressing process, mainly due to the uneven dispersion of deionized water in a woolen cloth. In the present invention, the surfactant was added to overcome the dispersion problem and further reduced the probability of the local bright spots. The mass fraction of the surfactant in the deionized aqueous solution was 15%; the surfactant was hexadecyltrimethylammonium bromide; and the liquid content was 20%. The test results of the prepared flash fabric were shown in Table 1.

TABLE-US-00001 TABLE 1 Performance test results Compar- Compar- Compar- ative ative ative Exam- Exam- Exam- Exam- Exam- Exam- Exam- Exam- Exam- ple ple ple ple ple ple ple ple ple 1 2 3 4 5 6 1 2 3 RT/% 64 56 47 44 36 27 71 69 35 Z.sub.0 12.2 15.5 16.9 19.6 23.5 25.9 6.3 9.6 17.5 (N .Math. m)/g Z.sub.5 7.4 10.9 13.3 11.1 15.9 19.5 3.1 4.9 14.5 (N .Math. m)/g Z 0.39 0.30 0.21 0.43 0.32 0.25 0.51 0.49 0.17 T/% 12.5 10.1 9.4 13.5 11.1 10.4 21.3 18.7 7.9 Compar- Compar- Compar- Compar- Compar- Compar- ative ative ative ative ative ative Exam- Exam- Exam- Exam- Exam- Exam- ple ple ple ple ple ple 4 5 6 7 8 9 RT/% 30 23 30 36 77 79 Z.sub.0 17.9 5.6 8.7 12.5 17.3 17.6 (N .Math. m)/g Z.sub.5 15.1 2.5 4.3 6.6 13.8 14.4 (N .Math. m)/g Z 0.16 0.55 0.51 0.47 0.20 0.18 T/% 7.1 6.7 7.8 8.5 17.9 19.7

[0071] Result analysis: it could be seen from the comparison of the above data that increasing the amount of the spinning aid could reduce the toughness variation value of the flash non-woven fabric, but at the same time, it would lead to a decrease in tensile resilience and light transmittance. The higher the liquid content of the flash non-woven fabric, the lower its toughness variation value, while the higher the light transmittance and tensile resilience. Therefore, a flash non-woven fabric product with excellent performance in terms of toughness variation value, tensile resilience, light transmittance, etc., could be obtained by adjusting factors such as the addition amount of the nano-hollow carbon spheres loaded with zinc oxide as the spinning aid and the liquid content of the prepared flash non-woven fabric, which achieved the expected purpose of the present invention.

[0072] The specific embodiments described herein were merely illustrative of the spirit of the present invention. Those skilled in the technical field to which the present invention pertained might make various modifications, additions, or substitutions to the described specific embodiments in similar manners, without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0073] Although terms such as a spinning pack 1, a baffle 2, a flash fiber 3, a web-laying machine 4, a guide roll 5, a water tank 6, an upper pre-pressing roll 10, a lower pre-pressing roll 11, a transmission roll 12, a left squeeze roll 13, a right squeeze roll 14, an upper pre-hot-rolling roll 15, a lower pre-hot-rolling roll 16, an upper hot-rolling roll 17, a lower hot-rolling roll 18, and a winder 19 were used frequently herein, the possibility of using other terms was not excluded. These terms were used merely to describe and explain the essence of the present invention more conveniently; and interpreting them as any additional limitation was contrary to the spirit of the present invention.