REUSABLE PROTECTIVE CLOTHING

Abstract

A reusable protective clothing, including parameters of: (1) anti-permeability water pressure being: hydrostatic pressure of a new protective clothing ≥1100 cm H.sub.2O, and hydrostatic pressure after 100 times of repeated use ≥40 cm H.sub.2O; (2) moisture permeability of a material used ≥2500 g/(m.sup.2.Math.d), moisture permeability after 20 times of repeated use ≥5000 g/(m.sup.2.Math.d), and moisture permeability after 100 times of repeated use ≥8000 g/(m.sup.2.Math.d); (3) synthetic blood penetration resistance ≥grade 2 in table 3 of GB19082-2009; (4) outer surface water spray grade ≥grade 3; (5) breaking strength ≥45 N; (6) elongation at break ≥15%; (7) filtration efficiency for non-oily particles ≥70%; (8) charge amount ≤0.6 μC/piece; (9) static decay time ≤0.5 second; (10) continuous burning time ≤15 seconds, smoldering time ≤10 seconds, damage length less than 20 mm.

Claims

1. A reusable protective clothing, wherein parameters of the protective clothing comprise: (I) a liquid rejecting function, having an anti-permeability water pressure being: (1) a hydrostatic pressure (cm H.sub.2O) of a protective clothing greater than and equal to 1100 cm H.sub.2O, and (2) a hydrostatic pressure (cm H.sub.2O) after 100 times of repeated use greater than and equal to 40 cm H.sub.2O; (II) a moisture permeability of a medical composite material used in the protective clothing being: (1) a moisture permeability greater than and equal to 2500 g/(m.sup.2.Math.d), (2) a moisture permeability after 20 times of repeated use greater than and equal to 5000 g/(m.sup.2.Math.d), and (3) a moisture permeability after 100 times of repeated use greater than and equal to 8000 g/(m.sup.2.Math.d); (III) a synthetic blood penetration resistance being: a synthetic blood penetration resistance of the protective clothing not lower than grade 2 in table 3 of GB19082-2009; (IV) a surface moisture resistance being: an outer surface water spray grade of the protective clothing not lower than grade 3; (V) a breaking strength being: a breaking strength of a material of the protective clothing not less than 45 N; (VI) an elongation at break being: an elongation at break of the material of the protective clothing not less than 15%; (VII) a filtration efficiency being: a filtration efficiency for non-oily particles of the material of the protective clothing and a seam not less than 70%; (VIII) an antistatic property being: a charge amount of the protective clothing not greater than 0.6 μC/piece; (IX) a static decay property being: a static decay time of the material of the protective clothing not exceeding 0.5 second; and (X) a continuous burning time of the protective clothing less than or equal to 15 seconds, a smoldering time of the protective clothing less than or equal to 10 seconds, and a damage length of the protective clothing less than 20 mm; the reusable protective clothing above is prepared with the medical composite material, and a manufacturing process of the medical composite material comprises the following specific steps of: (1) manufacturing a flame-retardant polyester filament fiber, comprising: reducing a hardness and a smoothness of a surface of the polyester filament fiber by an air deformation process, immersing the processed polyester filament fiber in a flame-retardant finishing solution, and then depositing and crosslinking a flame retardant on a fabric by a pre-baking and baking processes to obtain the flame-retardant polyester filament fiber; wherein the polyester filament fiber is a polyethylene terephthalate (PET) filament fiber; and a main ingredient of the flame-retardant finishing solution is a modified aluminum hydroxide flame retardant; and a preparation method of the modified aluminum hydroxide flame retardant comprises: preparing aluminum hydroxide gel by a carbon decomposition method first; and then hydrothermally modifying the gel by a hydrothermal synthesis method, which is namely the modified aluminum hydroxide flame retardant. (2) manufacturing a conductive filament fiber, comprising: using a polyester filament fiber with a circular section, fully infiltrating carbon ions into the polyester filament fiber; and then, attaching and fixing the carbon ions on a surface of the fiber by a coating process, with a thickness of about 1 micron; (3) weaving the polyester filament fiber obtain in step (1) and the conductive filament fiber obtained in step (2) into a textile material with an antistatic function, with conductive filaments spaced by 1 cm; (4) manufacturing a bacterium rejecting film, comprising: manufacturing a thin film with a thickness of 0.012 mm to 0.035 mm with polyurethane (PU) to obtain the bacterium rejecting film, wherein a structure of the bacterium rejecting film is: 1.395 billion micropores per square centimeter, wherein a pore size of each micropore is 280 nm; and (5) manufacturing the medical composite material, comprising: forming upper and lower layers with the textile material obtained in step (3), and a middle layer with the bacterium rejecting film, and compositing the three layers of materials by a polyester glue roll coating composite process to obtain the medical composite material.

2. The reusable protective clothing according to claim 1, wherein all suture parts are pasted with a waterproof adhesive tape during manufacturing of the protective clothing.

Description

DETAILED DESCRIPTION

[0049] To make the purposes, features and advantages of the present invention more obvious and easier to understand, the technical solutions protected by the present invention are clearly and completely described hereinafter with reference to the specific embodiments and the drawings. Apparently, the embodiments described hereinafter are only some but not all of the embodiments of the present invention. Based on the embodiments in the patent, all other embodiments obtained by those of ordinary skills in the art without going through any creative work should fall within the scope of protection of the patent.

Embodiment 1: Reusable Protective Clothing

[0050] Parameters of the protective clothing comprise:

[0051] (I) a liquid rejecting function, having an anti-permeability water pressure (GB/T 4744-2013 (60 cm H.sub.2O/min, water temperature: 20° C.)) being:

[0052] (1) a hydrostatic pressure (cm H.sub.2O) of a new protective clothing greater than and equal to 1100 cm H.sub.2O, and

[0053] (2) a hydrostatic pressure (cm H.sub.2O) after 100 times of repeated use greater than and equal to 40 cm H.sub.2O;

[0054] wherein, impermeability to waters of all areas of the protective clothing of the invention all reaches the above standards;

[0055] /(II) a moisture permeability of a medical composite material used in the protective clothing (GB/T 12704.2-2009 f method B (temperature: 38° C., relative moisture: 50%)) being:

[0056] (1) a moisture permeability greater than and equal to 2500 g/(m.sup.2.Math.d),

[0057] (2) a moisture permeability after 20 times of repeated use greater than and equal to 5000 g/(m.sup.2.Math.d), and

[0058] (3) a moisture permeability after 100 times of repeated use greater than and equal to 8000 g/(m.sup.2.Math.d);

[0059] /(III) a synthetic blood penetration resistance being:

[0060] a synthetic blood penetration resistance of the protective clothing not lower than grade 2 in table 3 of GB19082-2009;

[0061] /(IV) a surface moisture resistance being:

[0062] an outer surface water spray grade of the protective clothing not lower than grade 3;

[0063] /(V) a breaking strength being:

[0064] a breaking strength of a material of the protective clothing not less than 45 N;

[0065] /(VI) an elongation at break being:

[0066] an elongation at break of the material of the protective clothing not less than 15%;

[0067] /(VII) a filtration efficiency being:

[0068] a filtration efficiency for non-oily particles of the material of the protective clothing and a seam not less than 70%;

[0069] /(VIII) an antistatic property being:

[0070] a charge amount of the protective clothing not greater than 0.6 μC/piece;

[0071] /(IX) a static decay property being:

[0072] a static decay time of the protective clothing not exceeding 0.5 second; and

[0073] /(X) a continuous burning time of the protective clothing less than or equal to 15 seconds, a smoldering time of the protective clothing less than or equal to 10 seconds, and a damage length of the protective clothing less than 20 mm.

Embodiment 2: Reusable Protective Clothing

[0074] The protective clothing is prepared with the medical composite material, wherein a manufacturing process of the medical composite material comprises the following specific steps of:

[0075] (1) manufacturing a flame-retardant polyester filament fiber, comprising:

[0076] reducing a hardness and a smoothness of a surface of the polyester filament fiber by an air deformation process, immersing the processed polyester filament fiber in a flame-retardant finishing solution, and then depositing and crosslinking a flame retardant on a fabric by a pre-baking and baking processes to obtain the flame-retardant polyester filament fiber, wherein the polyester filament fiber is a polyethylene terephthalate (PET) filament fiber;

[0077] a main ingredient of the flame-retardant finishing solution is a modified aluminum hydroxide flame retardant; and a preparation method of the modified aluminum hydroxide flame retardant comprises: preparing aluminum hydroxide gel by a carbon decomposition method first, and then hydrothermally modifying the gel by a hydrothermal synthesis method, which is namely the modified aluminum hydroxide flame retardant;

[0078] (2) manufacturing a conductive filament fiber, comprising:

using a polyester filament fiber with a circular section, fully infiltrating carbon ions into the polyester filament fiber; and then, attaching and fixing the carbon ions on a surface of the fiber by a coating process, with a thickness of about 1 micron;

[0079] (3) weaving the polyester filament fiber obtain in step (1) and the conductive filament fiber obtained in step (2) into a textile material with an antistatic function, with conductive filaments spaced by 1 cm;

[0080] (4) manufacturing a bacterium rejecting film, comprising:

manufacturing a thin film with a thickness of 0.012 mm to 0.035 mm with polyurethane (PU) to obtain the bacterium rejecting film; wherein:

[0081] a structure of the bacterium rejecting film is: 1.395 billion micropores per square centimeter, wherein a pore size of each micropore is 280 nm; and in the present invention, the pore size of the micropores is 2000 times smaller than a diameter of a liquid water molecular group of 0.1 mm to 7 mm, and is 70 times greater than a diameter of a vapor water molecular group of 3 nm to 4 nm; and

[0082] (5) manufacturing the medical composite material, comprising:

[0083] forming upper and lower layers with the textile material obtained in step (3), and a middle layer with the bacterium rejecting film, and compositing the three layers of materials by a polyester glue roll coating composite process to obtain the medical composite material.

Experimental Example

[0084] An overall cost of the protective clothing of the present invention is generally within 2000 Yuan, and the protective clothing may be used repeatedly for 100 times, with a single use cost of 20 Yuan. After mass production, a comprehensive cost is reduced, and the single use cost may be about 15 Yuan.

[0085] The various embodiments in the specification are described in a progressive manner. Each embodiment focuses on the differences from the other embodiments, and the same and similar parts between the various embodiments may be referred to each other.

[0086] The above descriptions of the disclosed embodiments enable those skilled in the art to implement or use the present invention. Many modifications to these embodiments will be apparent to those skilled in the art, and general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but should comply with the widest scope consistent with the principles and the novel and inventive features disclosed herein.