NON-SLIP CONDOM

Abstract

The present disclosure discloses a non-slip condom, including a sleeve body, where the sleeve body has an open end, a closed end, a male side, and a female side; no less than 5% of a bottom surface of the male side has a primary microstructure capable of increasing a surface area; and an area ratio of a total surface area per unit area of the bottom surface of the male side including the primary microstructure to the unit area is 1.05 to 565.00. The condom provided by the present disclosure can keep fit with a male penis during sexual intercourse to reduce the relative slip between the condom and the penis skin, and is not easy to wrinkle or slip off, thus reducing the mucosal injury and unreality sensation. Moreover, the condom helps to increase the consumers' willingness to use the condom and prevent sexually transmitted diseases (STDs).

Claims

1. A condom, comprising a sleeve body, wherein the sleeve body has an open end, a closed end, a male side, and a female side; no less than 5% of a bottom surface of the male side has a primary microstructure capable of increasing a surface area; and an area ratio of a total surface area per unit area of the bottom surface of the male side comprising the primary microstructure to the unit area is 1.05 to 565.00.

2. The condom according to claim 1, wherein 20% to 95% of the bottom surface of the male side has the primary microstructure capable of increasing a surface area.

3. The condom according to claim 1, wherein the area ratio is 1.1 to 100.0; and preferably, the area ratio is 1.2 to 50.0.

4. The condom according to claim 1, wherein different regions with the primary microstructure on a longitudinal axis and/or a horizontal axis of the male side have the same average area ratio.

5. The condom according to claim 1, wherein the primary microstructure is provided on the bottom surface of the male side at 8.0/10 to 9.8/10 of the sleeve body from the closed end, and the area ratio is 1.1 to 50.0.

6. The condom according to claim 1, wherein different regions of the surface of the male side on a longitudinal axis have different average area ratios, and the closer the region to the closed end, the larger the average area ratio.

7. The condom according to claim 5, wherein the primary microstructure is provided on the bottom surface of the male side at 9.0/10 of the sleeve body from the closed end; at 0/10 to 6.5/10 from the closed end, the average area ratio (S1) is 1.2 to 20.0; at 6.5/10 to 9.0/10 (excluding 6.5/10) from the closed end, the average area ratio (S2) is 1.1 to 5.0; and S1 is greater than S2.

8. The condom according to claim 5, wherein the primary microstructures are distributed at the male side in different types and/or quantities and in blocks and/or strips.

9. The condom according to claim 1, wherein a lubricant is attached to the condom.

10. The condom according to claim 9, wherein the lubricant is attached to the male side of the condom at an amount of (0.1 μg to 1.0 mg)/mm.sup.2 (calculated based on a surface area of the male side).

11. The condom according to claim 1, wherein a ratio of an average height of the primary microstructure to an average outer circumference of the primary microstructure is 157:1 to 1:16; preferably, a ratio of an average height of the primary microstructure to an average outer circumference of the primary microstructure is 80:1 to 1:15; and more preferably, a ratio of an average height of the primary microstructure to an average outer circumference of the primary microstructure is 63:1 to 1:12.

12. The condom according to claim 1, wherein the primary microstructure has an average height of 0.5 μm to 100 μm.

13. The condom according to claim 12, wherein the primary microstructure has an average height of 1 μm to 10 μm.

14. The condom according to claim 1, wherein the primary microstructures are arranged on the bottom surface of the male side at a density of 0.31 to 10.sup.10 microstructures/mm.sup.2.

15. The condom according to claim 14, wherein the density is 10.sup.2 to 10.sup.8 microstructures/mm.sup.2; and preferably, the density is 10.sup.4 to 2.5×10.sup.7 microstructures/mm.sup.2.

16. The condom according to claim 11, wherein there is a secondary microstructure on the primary microstructure.

17. The condom according to claim 16, wherein an average height of the secondary microstructure is 1/2 to 1/100 of the average height of the primary microstructure.

18. The condom according to claim 16, wherein the primary microstructure and/or the secondary microstructure are/is at least one from the group consisting of a column structure, a sawtooth structure, and a bump structure.

19. The condom according to claim 18, wherein the column structure is at least one from the group consisting of a rotator and a column.

20. The condom according to claim 19, wherein a ratio of an average height to an average outer circumference of the column structure is 157:1 to 4:1; the column structure has an average height of 0.5 μm to 100 μm; and the column structure is arranged at a density of 0.31 to 10.sup.10 structures/mm.sup.2.

21. The condom according to claim 18, wherein the sawtooth structure has an average height of 0.5 μm to 5 μm; in the sawtooth structure, an average included angle of tops of saw teeth in a cross section in any direction does not exceed 160°; and the sawtooth structure is arranged at a density of 164 to 10.sup.10 structures/mm.sup.2.

22. The condom according to claim 18, wherein the bump structure has an average height of 0.5 μm to 5 μm, and the bump structure is arranged at a density of 636 to 10.sup.6 structures/mm.sup.2.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0046] FIG. 1 is a schematic diagram of a structure of the condom;

[0047] FIG. 2 and FIG. 3 are images of a skin surface under a microscope;

[0048] FIG. 4 is a schematic structural diagram of an example of the condom of the present disclosure, where FIG. 4A is a schematic enlarged partial view of a male side with a primary cylindrical microstructure, and FIG. 4B is a schematic 3D structural diagram of an enlarged part of FIG. 4A;

[0049] FIG. 5 is a schematic structural diagram of an example of the condom of the present disclosure, where FIG. 5A is a schematic enlarged partial view of a male side with a regular primary sawtooth microstructure, and FIG. 5B is a schematic 3D structural diagram of an enlarged part of FIG. 5A;

[0050] FIG. 6 is a schematic structural diagram of an example of the condom of the present disclosure, where FIG. 6A is a schematic enlarged partial view of a male side with an irregular primary sawtooth microstructure, and FIG. 6B is a schematic 3D structural diagram of an enlarged part of FIG. 6A;

[0051] FIG. 7 is a schematic structural diagram of an example of the condom of the present disclosure, where FIG. 7A is a schematic enlarged partial view of a male side with a bump primary microstructure, and FIG. 7B is a schematic 3D structural diagram of an enlarged part of FIG. 7A;

[0052] FIG. 8 is a schematic structural diagram of an example of the condom of the present disclosure, where FIG. 8A is a schematic enlarged partial view of a male side with a primary cylindrical microstructure and a secondary cylindrical microstructure, and FIG. 8B is a schematic 3D diagram of an enlarged part of FIG. 8A;

[0053] FIG. 9 is a cross-sectional view of an example of the condom of the present disclosure, where a male side of the condom is provided with primary microstructures distributed in blocks or strips.

REFERENCE NUMERALS

[0054] 1: male side; 2: female side; 3: closed end; 4: open end; 5: skin groove; 6: skin bulge; 7: uneven microstructure on skin; 8: primary cylindrical microstructure; 9: regular primary sawtooth microstructure; 10: irregular primary sawtooth microstructure; 11: primary bump microstructure; 12: secondary cylindrical microstructure; and 13: primary microstructure distributed in block or strip.

DETAILED DESCRIPTION

[0055] Some names, test methods, and test materials involved in the present disclosure are briefly described below:

[0056] Male Side

[0057] In the examples of the present disclosure, unless otherwise specified, the surface, surface area, and area ratio refer to the characteristics of the male side of the sleeve body of the condom in contact with a penis.

[0058] Surface Area

[0059] The surface area used in the examples of the present disclosure is obtained through conventional measurement and integral calculation according to a structural dimension of the surface of the condom.

[0060] Area Ratio

[0061] The area ratio used in the examples of the present disclosure is obtained by dividing a surface area of a selected region of the male side of the condom with a bottom surface area of the selected region, where the bottom surface is an imaginary smooth surface.

[0062] Slip Force Determination

[0063] The effective contact area is positively correlated with the slip force. The larger the effective contact area, the larger the slip force. Therefore, the slip force is used to characterize the effective contact area.

[0064] The condom is sleeved on a cylinder with a diameter of 34 mm, a surface of the cylinder is made of artificial leather whose surface structure and softness are similar to human skin, and a length of the condom wrapping the cylinder is 180 mm. A top of the condom is clamped, then the condom is subjected to a tensile test on a tensile analyzer at a tensile speed of 500 mm/min, and a force value causing a significant slip between the condom and the cylinder is recorded.

[0065] Condom Sample

[0066] The condom used in the examples of the present disclosure is a male condom made of natural rubber latex. The condom has a thickness of 50 μm and a length of 180 mm.

[0067] To better explain the objectives, technical solutions, and advantages of the present disclosure, the present disclosure will be further explained below with reference to accompanying drawings and specific examples. Unless otherwise specified, the parameter values used in the present disclosure are average values of multiple groups or times.

Example 1

[0068] In an example of the condom of the present disclosure, all regions of the male side of the condom have primary cylindrical microstructures 8 that are uniformly arranged, as shown in FIG. 4. h represents a height of the cylinder microstructure, d represents a diameter of a single cylinder microstructure, and l represents an average circumference of a single cylinder microstructure. Table 1 shows an area ratio of the male side of the condom calculated according to the structural parameters of the cylinder structure.

TABLE-US-00001 TABLE 1 Area ratios when all regions of the male side have the primary cylindrical microstructure Arrangement Circum- density 10.sup.4 Condom Height h Diameter ference structures/ Area Type/No. /μm d/μm 1/μm mm.sup.2 ratio Z-0 (ordinary / / / 1 smooth surface) A-1 10 2 6.3 0.4 1.25 A-2 6 2 6.3 2.7 2.02 A-3 50 2 6.3 6.4 21.11 A-4 100 1.5 4.71 10 48.12 A-5 100 0.75 2.36 40 95.25 A-6 100 0.5 1.57 100 158.08 A-7 100 0.5 1.57 360 566.49

Example 2

[0069] In an example of the condom of the present disclosure, all regions of the male side of the condom have regular primary sawtooth microstructures 9 that are closely arranged, as shown in FIG. 5. The sawtooth structure is a regular square pyramid; and h represents a height of a single saw tooth, w represents a side length of a bottom of a single saw tooth, and a is an apex angle of a sawtooth cone. Table 2 shows an area ratio of the male side calculated according to the structural parameters of the sawtooth microstructure.

TABLE-US-00002 TABLE 2 Area ratios when all regions of the male side have the regular primary sawtooth microstructure Condom Height Bottom side length Apex angle Type/No. h/μm w/μm α/° Area ratio Z-0 (ordinary / / / 1 smooth surface) B-1 0.5 1 70.53 1.41 B-2 5 1 11.36 10.05 B-3 5 0.5 5.72 20.03 B-4 25 0.5 1.15 50.01

Example 3

[0070] In an example of the condom of the present disclosure, all regions of the male side of the condom have irregular primary sawtooth microstructures 10 that are closely arranged, as shown in FIG. 6. Structural parameters of the irregular sawtooth microstructure are expressed as average values, including: an average spacing L of saw teeth and an average height H of saw teeth.

[0071] The average spacing L of saw teeth and the average height H of saw teeth include values in two directions a and b that are orthogonal to each other on a test plane, which are denoted as L.sub.a, L.sub.b, H.sub.a, and H.sub.b, respectively.

[0072] With the infinitesimal method, a surface area of the male side with the irregular sawtooth microstructure is regarded as an area integral of an infinitesimal plane in the two directions of a and b. The area ratio of the male side is calculated by the following formula, and results obtained are shown in Table 3.

[00001]$\mathrm{Area}\mathrm{ratio}=\frac{\sqrt{\left(4H_a^2+L_a^2\right)\times \left(4H_b^2+L_b^2\right)}}{L_a\times L_b}$

TABLE-US-00003 TABLE 3 Area ratios when all regions of the male side have the irregular primary sawtooth microstructure Condom L.sub.a H.sub.a L.sub.b H.sub.b Area Type/No. /μm /μm /μm /μm ratio Z-0 (ordinary / / / / 1 smooth surface) C-1 89 6.9 91 7.3 1.025 C-2 79.1 10.9 81.5 10.6 1.072 C-3 63.4 11.3 72.9 12.1 1.119 C-4 54.2 25.1 53.7 23.9 1.825 C-5 43.2 53.4 46.6 59.7 7.335 C-6 32.4 56.7 33.9 55.1 12.380 C-7 26.4 89.1 27.1 85.4 43.545

Example 4

[0073] In an example of the condom of the present disclosure, all regions of the male side of the condom have primary bump microstructures 11 that are closely arranged, as shown in FIG. 7. h represents a height of the bump microstructure, d represents a diameter of a single bump microstructure, and l represents a circumference of a single bump microstructure. Table 4 shows an area ratio of the male side of the condom calculated according to the structural parameters of the bump structure.

TABLE-US-00004 TABLE 4 Area ratios when all regions of the male side have the primary bump microstructure Bump arrangement Condom Height Diameter Circumference density Area Type/No. h/μm d/μm l/μm 10.sup.4 structures/mm.sup.2 ratio Z-0 (ordinary / / / / 1 smooth surface) D-0 (regular floating 500 500 1570.8 0.000004 1.031 point) D-1 5 1.5 4.7 10 3.356 D-2 5 0.5 1.6 90 8.069 D-3 3 1 3.1 20 2.885 D-4 3 0.8 2.5 20 2.508 D-5 5 0.8 2.5 40 6.027

Example 5

[0074] In an example of the condom of the present disclosure, all regions of the male side of the condom have primary cylindrical microstructures 8 that are uniformly arranged, and the primary cylindrical microstructures 8 have secondary cylindrical microstructures 12 with a smaller size than the primary cylindrical microstructures, where each primary cylindrical microstructure has 4 secondary cylindrical microstructures, as shown in FIG. 8. h.sub.1 and d.sub.1 represent a height and a diameter of a single primary cylindrical microstructure, respectively; h.sub.2 and d.sub.2 represent a height and a diameter of a single secondary cylindrical microstructure, respectively; and the primary cylindrical microstructures are arranged on the bottom surface of the male side at a density of 80,000 structures/mm.sup.2. Table 5 shows an area ratio of the male side calculated according to the structural parameters of the primary and secondary microstructures.

TABLE-US-00005 TABLE 5 Area ratios when all regions of the male side of the condom have the primary and secondary cylindrical microstructures Primary Primary Secondary Secondary Condom structure structure structure structure Type/ Height Diameter Height Diameter Area No. h.sub.1/μm d.sub.1/μm h.sub.2/μm d.sub.2/μm ratio E-1 10 2 2 0.5 8.54 E-2 10 2 2 0.3 7.54 E-3 6 2 2 0.5 6.53 E-4 6 2 2 0.3 5.52 E-5 50 2 5 0.5 32.4 E-6 50 2 5 0.3 29.90 E-7 100 1.5 10 0.3 46.24

Example 6

[0075] In an example of the condom of the present disclosure, the entire surface of the male side has primary cylindrical microstructures that are closely arranged, and the primary cylindrical microstructures have secondary cylindrical microstructures. Parameters for the primary microstructures: height: 10 single microstructure diameter: 5 and density: 10,000 structures/mm.sup.2. A single secondary cylindrical microstructure on each primary cylindrical microstructure has a height of 5 μm and a diameter of 0.5 μm; and in each primary cylinder structure for different samples, there may be 0, 10, 25, and 50 secondary cylinder structures. Table 6 shows a relative area ratio growth factor of the male side where all regions have the primary and secondary microstructures compared with the male side where all regions only have the primary microstructure and do not have the secondary microstructure.

TABLE-US-00006 TABLE 6 Relative area ratio growth factors of the male side with the primary and secondary microstructures compared with the male side only with the primary microstructure. Condom Number of secondary Area Relative area ratio Type/No. microstructures ratio growth factor F-0 (without secondary 0 16.708 1 microstructure) F-1 10 17.493 1.047 F-2 25 18.671 1.117 F-3 50 20.635 1.235

Example 7

[0076] In an example of the condom of the present disclosure, the male side of the condom is provided with discrete block microstructures, where the primary microstructures have an area ratio of 1.25. The microstructures with an area ratio of 1.25 are distributed on the male side in discrete blocks with proportions of 0%, 5%, 10%, 20%, 50%, 75%, and 100% to obtain samples G-1, G-2, G3, G4, G5, and G6, respectively.

[0077] 200 mg of a water-soluble lubricant is uniformly coated on the male side, a slip force is measured for each condom sample, and results are shown in Table 7.

TABLE-US-00007 TABLE 7 Average area ratio and slip force F (N) of the male side provided with primary microstructures with the same area ratio in different proportions Proportion of primary Average Condom microstructures area ratio Type/No. on male side/% of male side Slip force F (N) Z-0 0 1 62.13 G-1 5 1.0125 67.09 G-2 10 1.025 72.01 G-3 20 1.05 87.38 G-4 50 1.125 110.09 G-5 75 1.1875 134.31 G-6 100 1.25 152.95

[0078] Above results show that, the larger the proportion of a part with the primary microstructure in the entire male side of the condom, the higher the average area ratio of the male side and the closer the average area ratio of the male side to the area ratio of the primary microstructure itself; and the larger the slip force of the condom, the greater the effective contact area.

Example 8

[0079] In an example of the condom of the present disclosure, primary microstructures with different area ratios are arranged on the male side of the condom in blocks and strips at an interval, as shown in FIG. 9. S.sub.n (n=1, 2, 3 . . . ) represents an area ratio of a region where primary microstructures 13 are distributed in blocks or stripes, S mo represents an average area ratio of a region at 1/3 from the closed end of the male side of the condom, and S.sub.mc represents an average area ratio of a region at 2/3 from the open end of the male side of the condom. Slip forces of condom samples where a lubricant is attached to the male side at different contents are measured, and results are shown in Table 8.

TABLE-US-00008 TABLE 8 Slip forces F of condom samples where primary microstructures are distributed in blocks and strips on the male side and a water-soluble lubricant is attached at different contents (N) Condom Average area ratio Water-soluble lubricant content (mg/mm.sup.2) Type/No. S.sub.mo S.sub.mc 0 0.2 0.4 0.6 0.8 1 Z-0 1 61.12 60.73 62.45 61.10 63.20 61.70 C-1 1.03 62.31 63.07 61.02 64.32 63.12 61.77 D-0 1.03 61.08 62.39 63.20 61.89 63.54 62.78 H-1 1.25 1.41 62.20 86.96 76.54 75.93 74.85 73.30 H-2 1.25 6.03 89.73 233.87 121.39 118.22 120.96 122.33 H-3 2.89 6.03 108.15 259.78 325.15 159.78 157.52 149.17 H-4 2.89 12.38 128.14 286.20 354.35 417.66 389.66 340.33 H-5 3.36 12.38 138.93 301.83 364.79 392.93 485.69 348.02 H-6 3.36 20.03 209.24 275.08 325.63 465.90 498.10 563.35

[0080] Test results show that, at different water-soluble lubricant contents, the slip force increases as the average area ratio increases; and especially when the average area ratio of the region at 2/3 from the open end of the male side of the condom increases, the slip force increases significantly.

Example 9

[0081] The effects of the condoms of the present disclosure were verified in this example. Some condom samples were selected from Examples 1 to 8, and a water-soluble lubricant was uniformly coated on the male side of a selected sample at an amount of 400 mg/mm.sup.2.

[0082] Ten volunteers were selected for a personal experience test. Each subject was allocated with 2 condoms of each type that were coated with a lubricant, and filled out a subjective evaluation effect visit form after use. Forms of all volunteers were collected for statistics, and results were shown in Table 9.

TABLE-US-00009 TABLE 9 Subjective experience evaluation of the volunteers for the condoms Type/No. Reality sensation No slip Easy removal Wrinkle or slip off Z-0 3 3 10 3 D-0 2 3 10 3 A-1 9 9 10 9 A-2 9 9 10 9 A-3 10 10 8 10 A-4 10 10 8 10 B-1 9 9 10 9 B-2 10 10 10 10 B-3 10 10 9 10 B-4 10 10 8 10 C-1 7 8 10 8 C-5 10 10 10 10 C-7 10 10 7 10 D-1 10 10 10 10 D-2 10 10 10 10 D-4 10 10 10 10 E-1 9 9 10 9 E-7 10 10 10 10 F-1 10 10 9 10 F-2 10 10 9 10 G-2 9 9 10 9 G-4 9 9 10 8 G-5 9 9 10 9 H-1 9 9 10 10 H-2 9 9 10 10 H-3 10 10 10 10 H-4 10 10 10 10 H-5 10 10 10 10 H-6 10 10 10 10 Notes: The evaluation is conducted based on 0 to 10 scores, where 10 is a full score, and a score is expressed by an integer. Reality sensation: The closer the subjective sensation to the sensation when no condom is worn, the higher the score. No slip: It is observed whether the condom slips during sexual intercourse. When the condom does not slip at all, a score of 10 is given. Easy removal: It is observed whether the condom is easy to remove at the end of sexual intercourse. The easier the condom is to remove, the higher the score. Wrinkle or slip off: If the condom slips off, a score of 0 is given; a corresponding score is given according to a wrinkle degree; and if there is no wrinkle at all, a score of 10 is given.

Example 10

[0083] A condom of the present disclosure is provided, where 5% of the bottom surface of the male side is provided with a primary microstructure capable of increasing a surface area, a region with the primary microstructure has an area ratio of 1.05, and a lubricant is attached to the male side of the condom at an amount of 5×10.sup.−3 mg/mm.sup.2, which is denoted as sample 1.

Example 11

[0084] A condom of the present disclosure is provided, where 20% of the bottom surface of the male side is provided with a primary microstructure capable of increasing a surface area, a region with the primary microstructure has an area ratio of 500, and a lubricant is attached to the male side of the condom at an amount of 5×10.sup.−3 mg/mm.sup.2, which is denoted as sample 2.

Example 12

[0085] A condom of the present disclosure is provided, where 95% of the bottom surface of the male side is provided with a primary microstructure capable of increasing a surface area, a region with the primary microstructure has an area ratio of 1.2, and a lubricant is attached to the male side of the condom at an amount of 5×10.sup.−3 mg/mm.sup.2, which is denoted as sample 3. The primary microstructure is a bump structure with an average height of 1,000 nm.

Example 13

[0086] A condom of the present disclosure is provided, where 95% of the bottom surface of the male side is provided with a primary microstructure capable of increasing a surface area, a region with the primary microstructure has an area ratio of 100, and a lubricant is attached to the male side of the condom at an amount of 10×10.sup.−3 mg/mm.sup.2, which is denoted as sample 4. The primary microstructure is a column structure with a height of 5,000 nm.

Example 14

[0087] A condom of the present disclosure is provided, where regions of the male side at 9/10 from the closed end to the open end are provided with a primary microstructure and have an area ratio of 50, regions at 6.5/10 from the closed end to the open end have an average area ratio (S1) of 20, and regions at 6.5/10 to 9/10 (excluding 6.5/10) have an average area ratio (S2) of 1.1; and a lubricant is attached to the male side of the condom at an amount of 20×10.sup.−3 mg/mm.sup.2, which is denoted as sample 5. The primary microstructure is a sawtooth structure with an average height of 2,000 nm, and an included angle of tops of saw teeth in the sawtooth structure is 30° to 140°.

Example 15

[0088] A condom of the present disclosure is provided, where regions of the male side at 9/10 from the closed end to the open end are provided with a primary microstructure and have an area ratio of 200, and other regions are not provided with a microstructure; regions at 6.5/10 from the closed end to the open end have an average area ratio (S1) of 15, and regions at 6.5/10 to 9/10 (excluding 6.5/10) have an average area ratio (S2) of 3; and a lubricant is attached to the male side of the condom at an amount of 20×10.sup.−3 mg/mm.sup.2, which is denoted as sample 6. The primary microstructure is a sawtooth structure.

Example 16

[0089] A condom of the present disclosure is provided, where 40% of the bottom surface of the male side is provided with a primary microstructure capable of increasing a surface area, and a region provided with the primary microstructure has an area ratio of 250; the primary microstructure has an average height of 1,500 nm, there is also a secondary microstructure on the primary microstructure, and the secondary microstructure has a height of 600 nm; and a lubricant is attached to the male side of the condom at an amount of 20×10.sup.−3 mg/mm.sup.2, which is denoted as sample 7.

Example 17

[0090] This example is different from Example 12 in that there is a secondary microstructure on the primary microstructure, and the secondary microstructure has a height of 600 nm; and the sample is denoted as sample 8.

Example 18

[0091] This example is different from Example 13 in that there is a secondary microstructure on the primary microstructure, and the secondary microstructure has a height of 500 nm; and the sample is denoted as sample 9.

Example 19

[0092] This example is different from Example 15 in that S2 is 5, and the sample is denoted as sample 10.

Example 20

[0093] This example is different from Example 13 in that there is a secondary microstructure on the primary microstructure, and the secondary microstructure has a height of 1,200 nm; and the sample is denoted as sample 11.

Example 21

[0094] The samples of Examples 10 to 20 of the present disclosure and a control sample were subjected to a personal experience test on 10 volunteers. The control sample was a common condom (where a lubricant is attached to the male side at an amount of 25×10.sup.−3 mg/mm.sup.2) without any microstructure (area ratio of 1). Each subject was allocated with 2 condoms of each type, and filled out a subjective evaluation visit form after use. Forms of all subjects were collected for statistics, and results were shown in Table 10.

TABLE-US-00010 TABLE 10 Summary of subjective evaluation results of the volunteers Area ratio of the region with Reality No Easy Wrinkle or Test sample the microstructure sensation slip removal Slip off Sample 1 1.1 9 9 10 9 Sample 2 500.0 10 10 6 10 Sample 3 1.2 10 10 10 10 Sample 4 100.0 10 10 7 10 Sample 5 50.0 10 10 10 10 Sample 6 200.0 10 10 10 10 Sample 7 250.0 9 9 8 9 Sample 8 1.2 10 10 10 10 Sample 9 100.0 10 10 7 10 Sample 10 50.0 10 10 10 10 Sample 11 100.0 10 10 7 10 Control Z-0 1.0 3 3 10 3 Note: The scoring criteria and content are the same as Table 9.

[0095] Experimental results of Example 9 and Example 21 show that the condom of the present disclosure (where no less than 5% of the bottom surface of the male side is provided with a primary microstructure capable of increasing a surface area and an area ratio of a total surface area per unit area of the bottom surface of the male side including the primary microstructure to the unit area is 1.05 to 565.00) leads to high reality sensation, is not easy to slip and wrinkle or slip off, and shows a sensory experience effect significantly higher than that of the control sample.

[0096] Results of Example 9 and Example 21 also show that, with the divisional design for the male side, regions at 0/10 to 6.5/10 from the closed end to the open end have an average area ratio (S1) of 1.2 to 50.0, regions at 6.5/10 to 9.0/10 (excluding 6.5/10) from the closed end to the open end have an average area ratio (S2) of 1.05 to 10.0, and S1 is greater than S2, which can effectively reduce the slip of the condom during sexual intercourse and allows the condom to be easily removed after sexual intercourse, thereby providing a prominent use experience.

[0097] Finally, it should be noted that the above examples are provided merely to describe the technical solutions of the present disclosure, rather than to limit the protection scope of the present disclosure. Although the present disclosure is described in detail with reference to preferred examples, a person of ordinary skill in the art should understand that modifications or equivalent replacements may be made to the technical solutions of the present disclosure without departing from the spirit and scope of the technical solutions of the present disclosure.