KR102280101B1 - Protective clothing with improved durability - Google Patents

Abstract

An embodiment of the present invention provides protective clothing comprising a fabric composed of: a first layer comprising polyethylene and an inorganic filler; a second layer comprising compressed cotton; and a third layer comprising electrostatically treated polypropylene, wherein the MD direction of the fabric is arranged in the height direction.

Description

Protective clothing with improved durability {PROTECTIVE CLOTHING WITH IMPROVED DURABILITY}

The present invention relates to a protective suit with improved durability, and more particularly, to a protective suit having a relatively light weight while maintaining mechanical strength.

In general, protective clothing is used for countermeasures against chemicals, dust, and infectious diseases. For this purpose, it is necessary to prevent the passage of micro-pathogens such as viruses and bacteria while preventing the penetration of liquids. In addition, sufficient durability is essential because it is used for various activities and loses its function as a protective suit even if only a part of it is damaged.

However, these protective clothing has a disadvantage in that it is difficult to dissipate heat when worn due to lack of breathability and moisture permeability. Although research to improve this has been attempted, there is a disadvantage that such wear comfort and mechanical properties of the fabric are in a trade-off relationship.

If the breathability and moisture permeability of the material itself is improved, the effect of preventing penetration of chemicals and viruses is reduced, and sufficient durability cannot be realized. On the other hand, if sufficient durability is implemented, the protective clothing becomes excessively thick, making it uncomfortable to wear.

In the case of protective clothing, discomfort during wearing induces heat in the wearer, which makes it difficult to wear for a long time and causes rapid stamina consumption.

The inventors of the present invention have discovered that the conventional problems can be overcome by manufacturing a hazmat suit using a fabric having sufficient mechanical durability and excellent blocking effect against chemicals and viruses at a relatively light weight.

The present invention was derived to solve the above problems, and an object of the present invention is to provide a protective suit having excellent blocking effect against chemicals and viruses, and excellent ventilation without generating static electricity.

Another object of the present invention is to provide a protective suit of relatively light weight while maintaining mechanical strength.

One aspect of the present invention for solving the above problems is a first layer comprising polyethylene and an inorganic filler; a second layer comprising compressed cotton; And it provides a protective clothing comprising a fabric consisting of a third layer including the electrostatically treated polypropylene.

In one embodiment, the polyethylene may include a first polyethylene having a weight average molecular weight of 200,000 to 450,000, a second polyethylene having a weight average molecular weight of 600,000 to 1,500,000, and a third polyethylene that is liquid at 50°C.

In an embodiment, the content of the inorganic filler may be 20 to 40% by weight based on the total weight of the first layer.

In one embodiment, the first to third layers may be laminated with a one-component polyurethane adhesive.

In one embodiment, the fabric may have a moisture permeability of 400 g/m ² ·h or more.

In one embodiment, the fabric may have a puncture strength of 0.5 N/㎛ or more.

In one embodiment, the fabric may have a tensile strength of 200 kgf/cm ² or more in at least one direction, and an elongation of 150% or more in at least one direction.

The present invention provides a protective suit having excellent blocking effect against chemicals and viruses, and excellent breathability without generating static electricity.

In addition, the present invention provides a protective suit having excellent mechanical strength and relatively light weight.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 shows a schematic shape of a protective suit according to an embodiment of the present invention.

hazmat suit

A protective suit according to an aspect of the present invention includes a first layer comprising polyethylene and an inorganic filler; a second layer comprising compressed cotton; And it may include a fabric consisting of a third layer including the electrostatic-treated polypropylene.

The first layer may be a polyethylene microporous film reinforced with an inorganic filler in mechanical strength. The first layer is hydrophobic to prevent penetration of the liquid phase, and at the same time includes micropores to allow water vapor to pass therethrough. Accordingly, it is possible to have characteristics that are easy to wear for a long time by discharging sweat in the form of water vapor while protecting against intrusion of viruses, pathogens, bacteria, and the like.

In the present specification, "Weight Average Molecular Weight" is a characteristic having a unit of g/mol, and can be measured using high-temperature Gel Permeation Chromatography (GPC) using trichlorobenzene as a solvent.

The polyethylene may include a first polyethylene having a weight average molecular weight of 200,000 to 450,000, a second polyethylene having a weight average molecular weight of 600,000 to 1,500,000, and a third polyethylene that is liquid at 50°C.

The first polyethylene may be high density polyethylene (HDPE) having a molecular weight distribution of 2 to 4. The second polyethylene may be ultra high molecular weight polyethylene (UHMWPE) having a molecular weight distribution of 5 to 15. The third polyethylene may be polyethylene wax. The weight ratio of the first polyethylene to the third polyethylene may be 25-40: 1-20: 25-40, respectively.

By mixing high-density polyethylene having a uniform molecular weight distribution with ultra-high molecular weight polyethylene having a relatively wide molecular weight distribution, compatibility can be improved, and as a result, mechanical properties, particularly toughness, of the fabric can be improved. In addition, compatibility between them can be further improved by using polyethylene wax.

Toughness refers to the energy applied until the material is destroyed, and is a physical property indicating the degree of toughness of the material against destruction. These toughness values can be different even between materials having the same tensile strength and elongation. The fabric may have a toughness of 2 N/cm or more in at least one direction. As such, when a protective suit is manufactured using a fabric having excellent toughness, it is relatively light and has excellent durability.

The first layer may include an inorganic filler to have strong durability. Based on the total weight of the first layer, the content of the inorganic filler may be 20 to 40% by weight. The inorganic filler may be, for example, calcium carbonate, silica, alumina, carbon black, or the like. The inorganic filler may improve the puncture strength of the fabric.

The second layer is an intermediate layer including compressed cotton, which prevents the passage of contaminants and the like, and prevents excessive concentration of external impact on the first or third layer, thereby improving durability and allowing water vapor to pass through. The compressed cotton may be made of natural or artificial materials, for example, may be polypropylene-derived compressed cotton, but is not limited thereto.

The third layer is a non-woven fabric layer including electrostatically treated polypropylene, and can effectively prevent intrusion of external contaminants such as viruses, pathogens, and bacteria. In particular, the static electricity of the nonwoven fabric can agglomerate fine dust and other contaminants, preventing the passage of the fabric.

The first to third layers may be laminated with a one-component polyurethane adhesive. This one-component polyurethane adhesive has adhesive ability without a separate diluent, and may have a glass transition temperature of -50 to 0° C. and a viscosity of 3,000 to 15,000 mPas at room temperature, but is not limited thereto.

The fabric has a moisture permeability of 400 g/m ² ㆍh or more, a puncture strength of 0.5 N/㎛ or more, a tensile strength of at least 200 kgf/cm ² or more, and an elongation of 150% or more in at least one direction. have. If a fabric satisfying the above mechanical properties is used, sweat can be easily discharged and excellent mechanical properties can be realized.

Since the first layer is manufactured by transferring the base film in the MD direction and stored in the form of a roll wound in the MD direction, a kind of stretching/heat treatment is continuously performed, so that the MD direction has a relative mechanical property compared to the TD direction. excellent as Due to the structure of the human body, the protective suit is repeatedly contracted and stretched in the height direction, so the durability of the protective suit can be improved by cutting the MD direction of the fabric to match the height direction of the protective suit.

1 shows an example of a protective suit 100 according to an embodiment of the present invention.

Referring to FIG. 1 , the protective clothing 100 has an integrated shape and is provided with a zipper 110 so that it can be conveniently worn. In addition, by providing a plurality of elastic materials 120, the protective clothing can be in close contact with the distal ends of the hands, feet, neck, etc., and the protective clothing can be in close contact with the waist and the like, so that the convenience of movement can be excellent.

The arrow in FIG. 1 indicates the height direction of the protective clothing 100, and by manufacturing the MD direction of the fabric to match the height direction, the durability of the protective clothing can be improved.

The laminated fabric may include 15 to 35 parts by weight of polyethylene, 15 to 35 parts by weight of calcium carbonate, 40 to 60 parts by weight of polypropylene, 5 to 10 parts by weight of polyurethane as an adhesive, and other additives. For example, titanium dioxide, zinc stearic acid, etc. may be included in an amount of 1 part by weight or less.

Hereinafter, the present invention will be described in detail by way of Examples. However, the following examples are merely illustrative of the present invention, and the present invention is not limited by the following examples.

Polyethylene 20-30 wt%, calcium carbonate 20-30 wt%, polypropylene 45-55 wt%, titanium dioxide 1 wt% or less, polyurethane 5-10 wt% zinc stearic acid 1 wt% or less

Example 1

5 parts by weight of ultra high molecular weight polyethylene having a weight average molecular weight of 800,000, 35 parts by weight of high density polyethylene having a weight average molecular weight of 350,000, 30 parts by weight of polyethylene wax, 30 parts by weight of calcium carbonate, 0.5 parts by weight of sodium benzosulfonate, 0.5 parts by weight of phosphite ester , 1 part by weight of titanium dioxide and 1 part by weight of zinc stearic acid were dry-mixed and put into a twin-screw extruder. After melt-kneading at 200 rpm and 200° C., it was discharged with a T-die, and passed through a cast drum having a surface temperature of 30° C. to prepare a base film having a thickness of 1,000 μm. Subsequently, the base film is stretched 9 times in the longitudinal direction (Mechanical Direction; MD) in a roll stretching machine at 115° C., and stretched 6 times in the transverse direction (TD) in a tenter stretching machine at 125° C. to obtain a stretched film prepared. After gripping the stretched film in the longitudinal and transverse directions with a tenter stretching machine, the stretched film was stretched 1.3 times in each direction under the condition of 120° C. and then relaxed 0.8 times. The film was cooled at room temperature to prepare a porous polyethylene film having a thickness of 20 μm.

The porous polyethylene film, polypropylene compressed cotton and basis weight 40 g/m ² , and electrostatically treated melt blown polypropylene nonwoven fabric having a thickness of 200 μm were laminated. After applying a moisture-curable polyurethane one-component adhesive to each layer, it was pressurized at a pressure of 2 MPa using a heat press roll at 40° C. to prepare a protective clothing fabric.

Example 2

5 parts by weight of ultra-high molecular weight polyethylene having a weight average molecular weight of 800,000, 40 parts by weight of high density polyethylene having a weight average molecular weight of 350,000, 25 parts by weight of polyethylene wax, 30 parts by weight of calcium carbonate, 0.5 parts by weight of sodium benzosulfonate, 0.5 parts by weight of phosphite ester , 1 part by weight of titanium dioxide and 1 part by weight of zinc stearic acid were dry-mixed and put into a twin-screw extruder. After melt-kneading at 200 rpm and 200° C., it was discharged with a T-die, and passed through a cast drum having a surface temperature of 30° C. to prepare a base film having a thickness of 1,000 μm. Subsequently, the base film is stretched 8 times in the longitudinal direction (Mechanical Direction; MD) in a roll stretching machine at 115° C., and stretched 5 times in the transverse direction (TD) in a tenter stretching machine at 117° C. to obtain a stretched film prepared. After gripping the stretched film in the longitudinal and transverse directions with a tenter stretching machine, the stretched film was stretched 1.15 times in each direction under the condition of 115° C., and then relaxed 0.8 times. The film was cooled at room temperature to prepare a porous polyethylene film having a thickness of 20 μm.

The porous polyethylene film, polypropylene compressed cotton and basis weight 40 g/m ² , and electrostatically treated melt blown polypropylene nonwoven fabric having a thickness of 200 μm were laminated. After applying a moisture-curable polyurethane one-component adhesive to each layer, it was pressurized at a pressure of 2 MPa using a heat press roll at 40° C. to prepare a protective clothing fabric.

Example 3

10 parts by weight of ultra high molecular weight polyethylene having a weight average molecular weight of 1,000,000, 25 parts by weight of high density polyethylene having a weight average molecular weight of 350,000, 35 parts by weight of polyethylene wax, 30 parts by weight of calcium carbonate, 0.5 parts by weight of sodium benzosulfonate, 0.5 parts by weight of phosphite ester , 1 part by weight of titanium dioxide and 1 part by weight of zinc stearic acid were dry-mixed and put into a twin-screw extruder. After melt-kneading at 200 rpm and 200° C., it was discharged with a T-die, and passed through a cast drum having a surface temperature of 30° C. to prepare a base film having a thickness of 1,000 μm. Subsequently, the base film is stretched 8 times in the longitudinal direction (Mechanical Direction; MD) in a roll stretching machine at 112 ° C., and stretched 5 times in the transverse direction (TD) in a tenter stretching machine at 118 ° C. to obtain a stretched film prepared. After gripping the stretched film in the longitudinal and transverse directions with a tenter stretching machine, the stretched film was stretched 1.25 times in each direction under the condition of 120° C., and then relaxed 0.8 times. The film was cooled at room temperature to prepare a porous polyethylene film having a thickness of 20 μm.

The porous polyethylene film, polypropylene compressed cotton and basis weight 40 g/m ² , and electrostatically treated melt blown polypropylene nonwoven fabric having a thickness of 200 μm were laminated. After applying a moisture-curable polyurethane one-component adhesive to each layer, it was pressurized at a pressure of 2 MPa using a heat press roll at 40° C. to prepare a protective clothing fabric.

Example 4

15 parts by weight of ultra-high molecular weight polyethylene having a weight average molecular weight of 800,000, 25 parts by weight of high density polyethylene having a weight average molecular weight of 350,000, 30 parts by weight of polyethylene wax, 30 parts by weight of calcium carbonate, 0.5 parts by weight of sodium benzosulfonate, 0.5 parts by weight of phosphite ester , 1 part by weight of titanium dioxide and 1 part by weight of zinc stearic acid were dry-mixed and put into a twin-screw extruder. After melt-kneading at 200 rpm and 200° C., it was discharged with a T-die, and passed through a cast drum having a surface temperature of 30° C. to prepare a base film having a thickness of 1,000 μm. Subsequently, the base film is stretched 6 times in the longitudinal direction (Mechanical Direction; MD) in a roll stretching machine at 115° C., and stretched 4 times in the transverse direction (TD) in a tenter stretching machine at 122° C. to obtain a stretched film prepared. After gripping the stretched film in the longitudinal and transverse directions with a tenter stretching machine, the stretched film was stretched 1.25 times in each direction under the condition of 120° C., and then relaxed 0.8 times. The film was cooled at room temperature to prepare a porous polyethylene film having a thickness of 20 μm.

The porous polyethylene film, polypropylene compressed cotton and basis weight 40 g/m ² , and electrostatically treated melt blown polypropylene nonwoven fabric having a thickness of 200 μm were laminated. After applying a moisture-curable polyurethane one-component adhesive to each layer, it was pressurized at a pressure of 2 MPa using a heat press roll at 40° C. to prepare a protective clothing fabric.

Comparative Example 1

Dry mixing 96.5 parts by weight of homopolypropylene having a weight average molecular weight of 400,000, 3 parts by weight of homopolypropylene wax, 0.3 parts by weight of N,N'-dicyclohexyl-2,6-naphthalenedicarboxyamide and 0.2 parts by weight of phosphite ester to the twin screw extruder. After melt-kneading at 200 rpm and 300°C, it was solidified in a water bath at 25°C. This was melt-extruded in a single screw extruder at 220° C., discharged with a T-die, and passed through a cast drum at 120° C. to prepare a base film having a thickness of 1,000 μm. Then, the base film is stretched 5 times at a rate of 3,500 times per minute in the ceramic roll at 125 ° C. in the longitudinal direction (Mechanical Direction; MD), and in a tenter stretching machine at 150 ° C. in the transverse direction (TD) at 3,500 per minute A stretched film was prepared by stretching 9 times at a speed of 2 times. The stretched film was relaxed 0.85 times in the transverse direction while raising the temperature from 150° C. to 165° C. with a tenter stretching machine. The film was cooled at room temperature to prepare a porous polypropylene film having a thickness of 20 μm.

The porous polypropylene film and the basis weight 40 g/m ² , the electrostatically treated melt blown polypropylene nonwoven fabric having a thickness of 280 μm were laminated. After applying a moisture-curable polyurethane one-component adhesive to each layer, it was pressurized at a pressure of 2 MPa using a heat press roll at 40° C. to prepare a protective clothing fabric.

Comparative Example 2

Dry mixing 96.5 parts by weight of homopolypropylene having a weight average molecular weight of 400,000, 3 parts by weight of homopolypropylene wax, 0.3 parts by weight of N,N'-dicyclohexyl-2,6-naphthalenedicarboxyamide and 0.2 parts by weight of phosphite ester to the twin screw extruder. After melt-kneading at 200 rpm and 300°C, it was solidified in a water bath at 25°C. This was melt-extruded in a single screw extruder at 220° C., discharged with a T-die, and passed through a cast drum at 120° C. to prepare a base film having a thickness of 1,000 μm. Then, the base film is stretched 5 times at a speed of 4,000 times per minute in the ceramic roll at 125 ° C. in the longitudinal direction (Mechanical Direction; MD), and in a tenter stretching machine at 150 ° C. in the transverse direction (TD) at 4,500 per minute A stretched film was prepared by stretching 9 times at a speed of 2 times. The stretched film was relaxed 0.85 times in the transverse direction while raising the temperature from 150° C. to 165° C. with a tenter stretching machine. The film was cooled at room temperature to prepare a porous polypropylene film having a thickness of 20 μm.

The porous polypropylene film and the basis weight 40 g/m ² , the electrostatically treated melt blown polypropylene nonwoven fabric having a thickness of 280 μm were laminated. After applying a moisture-curable polyurethane one-component adhesive to each layer, it was pressurized at a pressure of 2 MPa using a heat press roll at 40° C. to prepare a protective clothing fabric.

Comparative Example 3

40 parts by weight of ultra high molecular weight polyethylene having a weight average molecular weight of 800,000, 15 parts by weight of high density polyethylene having a weight average molecular weight of 350,000, 15 parts by weight of polyethylene wax, 30 parts by weight of calcium carbonate, 0.5 parts by weight of sodium benzosulfonate, 0.5 parts by weight of phosphite ester , 1 part by weight of titanium dioxide and 1 part by weight of zinc stearic acid were dry-mixed and put into a twin-screw extruder, but the composition was non-uniformly mixed and a film on a sheet could not be formed.

Experimental Example 1

The mechanical properties of the porous polyethylene films used in Examples and Comparative Examples were measured and shown in Table 1 below. Each physical property measurement method is as follows.

-Thickness (㎛): The thickness of the protective clothing fabric specimen having a size of 100 × 100 mm was measured using a fine thickness gauge.

-Water permeability (g/m ² ㆍh): 33 g of calcium chloride was put into a test cup at 40° C., and then covered and fixed so that the distance from the specimen of the protective clothing fabric having a size of 70 × 70 mm was 3 mm. The moisture permeability was calculated by measuring the weight of calcium chloride after 1 hour in a constant temperature and humidity device maintaining 90% relative humidity at 40° C. and dividing the weight change by the area of the top of the cup.

-Puncture strength (N/㎛): Measure the force applied at the time the specimen is pierced by applying a force to the center of the specimen with a size of 100 × 100 mm with a needle with a diameter of 0.5 mm to the center of the specimen at a rate of 0.05 cm/sec. The value divided by , was defined as the puncture strength.

-Tensile strength (kgf/cm ² ): Using a universal testing machine, a 100 × 100 mm protective clothing fabric specimen was tensioned at a rate of 100 mm/min in each direction to measure the stress when fracture occurred.

- Elongation (%): Using a universal testing machine, a specimen of protective clothing fabric having a size of 100 × 100 mm was stretched in each direction at a rate of 100 mm/min to measure the elongation when fracture occurred.

-Toughness (N/cm): The total amount of energy given was measured by stretching the protective clothing fabric with a size of 100×100 mm at a rate of 100 mm/min in each direction until fracture occurred.

-Heat shrinkage rate (%): Put a specimen of protective clothing fabric with a size of 100 × 100 mm between A4 papers and leave it in an oven at 120 ° C for 1 hour, then cool it to room temperature to measure the length of the specimen in the horizontal and vertical directions. The changed ratio was calculated and used as the heat shrinkage rate.

division thickness moisture permeability punching strength The tensile strength elongation 120℃ heat shrinkage μm g/m ² h N/μm MD; kgf/cm ² TD; kgf/cm ² MD; % TD; % MD; % TD; % Example 1 20 480 0.35 180 130 250 180 1.8 0.7 Example 2 20 490 0.32 170 125 230 170 1.5 0.8 Example 3 20 500 0.33 165 120 200 150 1.2 0.8 Example 4 20 470 0.37 185 130 240 160 1.6 0.6 Comparative Example 1 20 420 0.18 65 100 60 80 0.5 2.4 Comparative Example 2 20 360 0.2 70 115 70 95 0.6 1.7

Experimental Example 2

The tests of (1) to (8) below were performed with the protective clothing fabrics of Examples and Comparative Examples, and the results are shown in Table 2.

*72-(1): EN14126 antiviral protection

-(2): EN14605 liquid penetration resistance

-(3): EN 1149-1 antistatic test

-(4): ISO 16603 Artificial Blood Penetration Test

-(5): ISO 16604 Pathogen Penetration Test

-(6): ISO 22611 Contaminated Aerosol Penetration Test

-(7): ISO 22612 Wet Bacterial Penetration Test

-(8): ASTM E 96 Calcium Chloride Moisture Permeability

division (One) (2) (3) (4) (5) (6) (7) (8) Example 1 ◎ ◎ ○ ◎ ◎ ◎ ◎ ○ Example 2 ◎ ◎ ○ ○ ◎ ◎ ◎ ○ Example 3 ◎ ○ ○ ○ ◎ ◎ ○ ◎ Example 4 ◎ ◎ ○ ◎ ◎ ◎ ◎ ○

(◎: Excellent; ○: Good; △: Poor; ×: Poor)

Experimental Example 3

The mechanical properties of the protective clothing fabrics prepared in Examples and Comparative Examples were measured and shown in Table 3 below.

division thickness basis weight moisture permeability punching strength The tensile strength elongation tenacity mm g/m ² g/m ² h N/μm MD; kgf/cm ² TD; kgf/cm ² MD; % TD; % MD;
N/cm TD;
N/cm Example 1 300 65 440 0.58 260 215 180 150 2.4 2.1 Example 2 300 65 455 0.53 240 210 190 140 2.2 2.0 Example 3 300 65 475 0.56 255 205 170 130 2.3 1.7 Example 4 300 65 435 0.61 285 240 150 120 2.8 2.5 Comparative Example 1 300 95 360 0.24 140 170 50 60 0.6 0.8 Comparative Example 2 300 95 315 0.28 165 185 60 85 0.7 0.9

Although the fabric of the embodiment having a compressed cotton layer had a relatively low basis weight, the puncture strength was excellent. The fabric of Comparative Example had a reduced elongation due to the nonwoven layer. In addition, the fabric of Example having a compressed cotton layer had a toughness value of 1.5 N/cm or more, but the fabric of Comparative Example had a toughness of less than 1.0 N/cm.

Experimental Example 4

After stretching 5% of the protective clothing fabric specimen having a size of 500 × 300 mm prepared in the Examples and Comparative Examples in the longitudinal direction (500 mm direction), applying a load of 1 kgf to the center for 5 seconds and then removing the load Repeated tests were performed to determine the strength characteristics of the specimens and are shown in Table 3 below.

division basis weight (g/m ² ) Tensile in MD direction (500 mm) Tensile in TD direction (500 mm) Example 1 65 ◎ ◎ Example 2 65 ◎ ○ Example 3 65 ◎ ○ Example 4 65 ◎ ○ Comparative Example 1 95 × × Comparative Example 2 95 × △

(◎: Excellent; ○: Good; △: Poor; ×: Poor)

Referring to Table 4 above, if the tensile strength is 185 kgf/cm ² or more and the elongation is stretched in the direction of 85% or more, and repeated loads are applied, it can be easily applied to points where repetitive loads are applied, such as knees and wrists, , If the tensile strength is 215 kgf/cm ² or more and the elongation is 150% or more, it can have particularly excellent strength.

In particular, these properties seem to be different depending on the toughness value, and the fabric of Comparative Example having a toughness value of less than 1.0 N/cm lacked strength properties.

Therefore, if the fabric having excellent strength is arranged in the key direction in which the body is repeatedly stretched and stretched, it is possible to manufacture a protective suit having excellent durability while using a fabric having a relatively low basis weight.

100: hazmat suit
110: zipper
120: elastic material

Claims (7)

a first layer comprising a first polyethylene having a weight average molecular weight of 200,000 to 450,000, a second polyethylene having a weight average molecular weight of 600,000 to 1,500,000, and a third polyethylene liquid at 50° C. and an inorganic filler;
a second layer comprising compressed cotton; and
Containing a fabric consisting of a third layer comprising electrostatically treated polypropylene,
The first polyethylene is high density polyethylene (HDPE) having a molecular weight distribution of 2 to 4, the second polyethylene is ultra high molecular weight polyethylene (UHMWPE) having a molecular weight distribution of 5 to 15, the third Polyethylene is a polyethylene wax, and the weight ratio of the first to third polyethylene is 25-40: 1-20: 25-40, respectively,
The inorganic filler is at least one of calcium carbonate, silica, alumina and carbon black, in an amount of 20 to 40% by weight based on the total weight of the first layer,
The first to third layers have a glass transition temperature of -50 to 0° C., and a viscosity at room temperature of 3,000 to 15,000 mPas, which is laminated with a one-component polyurethane adhesive. delete delete delete According to claim 1,
The fabric has a moisture permeability of 400 g/m ² ㆍh or more, protective clothing. According to claim 1,
The fabric has a puncture strength of 0.5 N/㎛ or more, protective clothing. According to claim 1,
The fabric has a tensile strength of 200 kgf/cm ² or more in at least one direction, and an elongation of 150% or more in at least one direction, protective clothing.

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