Stretchable coated fabric and process for producing same

A manufacturing method, stretchable technology, applied in the direction of coating, textile and papermaking, liquid repellent fiber, etc., can solve the problem of high environmental load, and achieve the effect of excellent moisture permeability, water resistance and wind resistance

Inactive Publication Date: 2015-02-18
SEIREN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High environmental load due to the accumulation of its decomposition products in the environment and in living organisms

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Stretchable coated fabric and process for producing same
  • Stretchable coated fabric and process for producing same
  • Stretchable coated fabric and process for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Use 33dtex / 36 filament polyester yarn and use a 40-needle weft knitting machine to weave a smooth textured braid. Then, scrub and dye in the usual way. The weight per unit area of ​​the knitted fabric after dyeing is 74g / m 2 . In addition, the elongation in the warp direction of the knitted fabric was 8.6% under a load of 0.5 kgf, and 24.9% under a load of 2.0 kgf.

[0096] Next, the knitted fabric prepared above was dipped in the aqueous solution using two types of C6 fluorine-based water repellent shown in Recipe 1, squeezed with a mandrel (extrusion rate: 55% by weight), and dried at 120°C. 60 seconds, and then heated at 160° C. for 60 seconds to perform water-repellent processing. When the toluene repellency of the water-repellent processed fabric was evaluated after the water-repellent processing, it was 153 seconds.

[0097]

[0098] 1) NUVA 2114LIQ

[0099] 3.0% by weight

[0100] (C6 fluorine-based water repellent, manufactured by Clariant Japan Co., Ltd...

Embodiment 2

[0129] Use 22dtex / 24 filament polyester yarn and use a 40-needle weft knitting machine to weave a smooth texture. Then, scrub and dye in the usual way. The weight per unit area of ​​the knitted fabric after dyeing is 55g / m 2 . In addition, the elongation in the warp direction of the knitted fabric was 9.6% under a load of 0.5 kgf, and 23.0% under a load of 2.0 kgf.

[0130] Next, the knitted fabric prepared above was dipped in the aqueous solution using two types of C6 fluorine-based water-repellents in the above-mentioned recipe 1, squeezed with a mandrel (extrusion ratio: 53% by weight), and dried at 120° C. for 60 seconds. Minutes, and then heated at 160°C for 60 seconds for hydrophobic processing. When the toluene repellency of the water-repellent processed fabric was evaluated after the water-repellent processing, it was 144 seconds.

[0131] Next, using a knife coater, the synthetic resin solution shown in the above formulation 2 was coated by the float knife coating...

Embodiment 3

[0134] Use nylon 6 filaments of 56dtex / 48 filaments to weave 32-needle warp knitted fabrics. Then, scrub and dye in the usual way. The weight per unit area of ​​the knitted fabric after dyeing is 178g / m 2 . In addition, the elongation in the warp direction of the knitted fabric was 8.2% under a load of 0.5 kgf, and 19.3% under a load of 2.0 kgf.

[0135] Next, the braided fabric prepared above was dipped in the aqueous solution of two kinds of C6 fluorine-based water-repellent agents with different usability in the above formula 1, extruded with a mandrel (extrusion rate: 56% by weight), and dried at 120°C. 60 seconds, and then heated at 160° C. for 60 seconds to perform water-repellent processing. When the toluene repellency of the water-repellent processed fabric was evaluated after the water-repellent processing, it was 174 seconds.

[0136] Next, using a knife coater, the synthetic resin solution shown in the above formulation 2 was coated by the float knife coating me...

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Abstract

A stretchable coated fabric to which water repellency has been imparted using a fluorochemical water repellent (C6 fluorochemical water repellent) comprising a copolymer containing a C6 or lower perfluoroalkyl group. As a result of this configuration, no C8 fluorochemical water repellent containing perfluorooctanoic acid, perfluorooctanesulfonic acid, or the like is used and, hence, the coated fabric exerts no influence on the environment. The fluorochemical water repellent has a toluene repellency of 100 seconds or higher, the synthetic-resin solution to be applied to at least one surface of a stretchable cloth has a thixotropic index measured at 23ºC of 1.4-2.0, and the synthetic resin has a 100% modulus of 5 kgf / cm2 or higher. Consequently, the stretchable coated fabric is free from, for example, synthetic-resin leakage to the back, and a coating resin film is formed with excellent film formation properties.

Description

technical field [0001] The present invention relates to a stretch-coated fabric and its manufacturing method. Background technique [0002] There is currently a need for a method of imparting water and oil repellency to the surface of clothing as a fiber product. Specifically, a method of treating with a C8 fluorine-based water repellent is being used. Here, the "C8 fluorine-based water-repellent agent" refers to a fluorine-type water-repellent agent formed of an emulsion obtained by dispersing a copolymer containing a perfluoroalkyl group having 8 or more carbon atoms in a medium. However, the EPA (U.S. Environmental Protection Agency) identified perfluorooctanoic acid, perfluorooctane sulfonic acid, and the like among C8 fluorine-based water repellents. These compounds are decomposed in the environment, in living organisms. Since its decomposition products are accumulated in the environment and in organisms, the environmental load is high. Furthermore, there is a deman...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/256D04B1/00D04B21/16D06M15/263D06M15/564D06M15/643
CPCD06M15/564D04B1/18D06M15/643D06M15/256D06M15/263D04B21/16D04B1/00Y10T442/2008Y10T442/2098D06N3/128D06N3/14D06N3/042D06N3/144D06N3/0009D06M15/19D06M2101/32D06M2101/34D06M2200/12D06N2201/02D06N2201/0263D06N2203/041D06N2203/068D06N2209/142D06N2211/10D10B2331/02D10B2331/04D10B2501/00
Inventor 水间雅弘崛川靖広
Owner SEIREN CO LTD
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