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Nonwoven fabrics for protective clothing matenial and its mfg. method

A non-woven, clothing technology, applied in protective clothing, textiles, papermaking, textiles, etc., can solve problems such as poor morphological stability and fast swelling

Inactive Publication Date: 2004-05-12
KURARAY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although these protective clothing materials have moisture permeability, they have disadvantages such as fast swelling and poor shape stability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] (1) Using polypropylene (MFR = 500g / 10 minutes), the non-woven fabric (A) made of polypropylene ultrafine fibers (average fiber diameter = 2.3 μm, mesh weight = 15g / m) was produced by the melt blown method 2 ). The water pressure resistance of the original fabric is 540mmH 2 O.

[0064] (2) Pass the non-woven fabric (A) obtained in the above (1) through other processes, use a flat heating steam roll and a rubber roll, and perform a pressing process at a treatment temperature of 138°C, a pressure of 3.4Mpa, and a speed of 20m / min. . The water pressure resistance of the non-woven fabric (A') is 630mmH 2 O.

[0065] (3) 60 parts by mass of a polystyrene-based thermoplastic elastomer [styrene-ethylene / propylene-styrene block copolymer (SEPS); "Septon" manufactured by Kuraray Co., Ltd.] and polypropylene (MFR=200g / 10 minutes) 40 parts by mass of the mixture, and make a thermally adhesive nonwoven fabric (B) (average fiber diameter=4.5 μm, mesh value=10g / m2) made of ultr...

Embodiment 2

[0070] Instead of the polypropylene ultrafine fiber nonwoven fabric (A), use the polypropylene ultrafine fiber nonwoven fabric (A') obtained by pressing (2), and in addition, perform the same operation as in Example 1 (5) to produce a composite nonwoven fabric. spinning. Its physical properties are shown in Table 1.

Embodiment 3

[0083] Pay 25g / m according to the standard manufacture of embodiment 1 (1) 2 Non-woven fabric made of polypropylene microfibers. The water pressure resistance is 830mmH 2 O. The heat-adhesive nonwoven fabric uses the same nonwoven fabric as in Example 1 (3), and the porous fabric is a spunbonded nonwoven fabric made of polypropylene (manufactured by Shinwa Corporation. Mesh 40 g / m 2 ). Its compound integration is made with the condition of embodiment 1 (5). Manufacture of composite non-woven fabrics. Its physical properties are shown in Table 2.

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Abstract

The composite nonwoven fabric for protective clothing of the present invention comprises (A) a water vapor-permeable, water-resistant nonwoven fabric made of polyolefin-based ultra-fine fibers having an average fiber diameter of 5 mu m or less, (B) a heat-bonding nonwoven fabric made of thermoplastic elastomer ultra-fine fibers, and (C) a porous fabric. The nonwoven fabric B is interposed between the nonwoven fabric A and the porous fabric C, and the fabrics A, B and C are integrally bonded to each other. The composite nonwoven fabric is suitable for protective clothing because it is water vapor-permeable and water-resistant on its outer side to be exposed to outside air, and is of high strength, sweat-absorption and antistatic on its inner side, and also well-balanced in these properties.

Description

technical field [0001] The present invention relates to a non-woven fabric for protective clothing and a manufacturing method thereof. More specifically, the present invention relates to a non-woven fabric that is excellent in moisture permeability and water resistance, tear strength, and hand feeling, and is suitable for general work clothes and for medical use. Composite non-woven fabric for protective clothing such as underwear and gowns and its manufacturing method. Background technique [0002] In recent years, there has been a trend of disposable protective clothing materials. For example, in general work clothes, dirt and the like will be generated during regular maintenance operations such as machinery and equipment. Disposable work clothes are necessary. In addition, in medical use, protection against infectious diseases is also necessary, and disposable clothing is also necessary. [0003] Protective clothing used for these purposes requires water repellency and b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A41D13/00A41D13/008A41D31/00B32B5/26D04H1/559D04H3/007D04H3/16D04H13/00
CPCA41D31/0016D04H13/007B32B5/26D04H13/002A41D31/145D04H1/492D04H1/559D04H1/56Y10T442/3707Y10T442/494Y10T442/60Y10T442/614Y10T442/659Y10T442/66Y10T442/663Y10T442/668Y10T442/68Y10T442/689D04H3/02
Inventor 八田信雄新井田康朗田所昌美
Owner KURARAY CO LTD
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