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Soil resistant fiber structure

a fiber structure and soil-resistant technology, applied in the field of fiber structure, can solve the problems of low soil-removability after processing, deterioration of soil-removability in washing, and aqueous soil being apt to expand, and achieves the effects of stable fiber structure, enhanced affinity with washing liquid, and high soil-resistan

Inactive Publication Date: 2020-09-10
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a fiber structure that has high soil resistance and can be repeatedly washed after processing. The fiber surface has a resin film containing polyvinyl alcohol and a fluorine-based oil-repellent resin having a hydrophilic component. This prevents oily soil from adhering to the fiber and enhances its affinity with a washing liquid during washing. The fiber structure has both adhesion suppressibility against aqueous soil and oily soil, and can easily be removed during washing.

Problems solved by technology

However, the processing methods suggested in Patent Documents 1 and 2 have the problem that because of high hydrophilicity, aqueous soil is apt to expand once the soil adheres.
The processing method suggested in Patent Document 3 has the problem that since high water repellency is exhibited, affinity between a washing liquid and aqueous soil during washing tends to be reduced, leading to deterioration of soil removability in washing, and in particular, soil removability after processing is low.
The processing method suggested in Patent Document 4 has the problem that since a large amount of a polymer composed of a triazine ring-containing polymerizable monomer, fluororesin and hydrophilic components are buried, so that sufficient soil resistant cannot be exhibited.
The processing method suggested in Patent Document 5 ensures high washing durability, but has the problem that soil resistance after processing may be low.

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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  • Soil resistant fiber structure

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0104]A single yarn with a count of 14, which includes 65% of polyethylene terephthalate and 35% of cotton, was used as a warp yarn and a weft yarn to prepare a twill woven fabric. The obtained twill woven fabric was refined at a temperature of 95° C. by a continuous refining machine in accordance with a conventional method, rinsed with hot water, and then dried at a temperature of 130° C. The twill woven fabric was then dyed fluorescent-white at a temperature of 130° C. using a jet dyeing machine, washed by a conventional manner, washed with hot water, dried, heated at a temperature of 170° C. to obtain a white fabric having a warp density of 86 / 2.54 cm and a weft density of 55 / 2.54 cm.

[0105]Components (A), (B), (H) and (I) as described later were then dissolved in amounts of 90 g / L, 18 g / L, 4.5 g / L and 0.75 g / L, respectively, to prepare a treatment liquid, the white fabric prepared as described above was immersed in a spread state in the treatment liquid, squeezed to a squeezing r...

example 2

[0106]Except that with respect to Example 1, the amount of component (B) was 36 g / L, the same procedure as in Example 1 was carried out to obtain a soil resistant fiber structure. The obtained soil resistant fiber structure had a pressed soil removability degree of 4 in soil gray scale determination after processing, and a pressed soil removability degree of 3 to 4 in soil gray scale determination after industrial washing was performed 50 times.

example 3

[0107]Except that with respect to Example 1, component (C) was used in an amount of 18 g / L as polyvinyl alcohol, the same procedure as in Example 1 was carried out to obtain a soil resistant fiber structure. The obtained soil resistant fiber structure had a pressed soil removability degree of 3 to 4 in soil gray scale determination after processing, and a pressed soil removability degree of 3 to 4 in soil gray scale determination after industrial washing was performed 50 times.

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Abstract

Provided is a fiber structure having high adhesion suppressibility against aqueous soil and oily soil and soil removability in washing. A soil resistant fiber structure includes a resin film on at least a part of a fiber surface, the resin film containing polyvinyl alcohol and a fluorine-based oil-repellent resin having a hydrophilic component, the fiber structure having a water repellency degree of 2 or less as measured by a spray test in accordance with JIS L-1092, and an oil repellency degree of 2 or more as measured in accordance with AATCC 118 method. The fluorine-based oil-repellent resin is preferably a fluorine-based oil-repellent resin containing a polyoxyalkylene group. The polyvinyl alcohol preferably has an average polymerization degree of 200 to 1500.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This is the U.S. National Phase application of PCT / JP2018 / 037209, filed Oct. 4, 2018, which claims priority to Japanese Patent Application No. 2017-197318, filed Oct. 11, 2017, the disclosures of each of these applications being incorporated herein by reference in their entireties for all purposes.FIELD OF THE INVENTION[0002]The present invention relates to a fiber structure having high soil resistance.BACKGROUND OF THE INVENTION[0003]Conventionally, there has been a high demand for improving the soil resistance of fiber structures of fabrics such as woven or knitted fabrics, and various methods for improving the soil resistance have been proposed. Studies have been conducted on methods for imparting soil resistance to a fiber structure, and in general, examples thereof include: a processing method in which a hydrophilic resin is added to a fiber structure to enhance affinity with a washing liquid, so that soil is easily washed out; and a...

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(United States)
IPC IPC(8): D06M15/333A41D31/00D06M15/423D03D15/00D06M15/277
CPCD10B2331/04D06M15/423D06M2101/32D06M15/277D06M2200/01D06M15/333A41D31/00D03D15/00D06M15/576D06M2200/11D06M15/53D06M2101/06D03D15/47D03D15/283D03D15/217
Inventor TAKESHITA, SHOTATAKEDA, KEIJI
Owner TORAY IND INC