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Fiber structure




Title: Fiber structure.
Abstract: [Solution] A fiber structure characterized in that each of the single fibers used in it is covered, on the surface thereof, with a resin film containing an organic fluorochemicals via a resin film containing a triazine ring-containing compound or containing an organic fluorochemicals and a triazine ring-containing compound, and that said fiber structure has a water repellency level of grade 4 or higher and an oil repellency level of grade 4 or higher after 20 times of washing. [Problem to be Solved] To stably supply a fiber structure having excellent ashing durability, water/oil repellency and antifouling properties. ...


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USPTO Applicaton #: #20100192272
Inventors: Masao Seki, Rumi Karasawa, Wataru Abe, Toshiaki Shimizu, Takashi Kawasaki, Masanobu Sato


The Patent Description & Claims data below is from USPTO Patent Application 20100192272, Fiber structure.

TECHNICAL FIELD

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The present invention relates, to a fiber structure having durable water repellency, oil repellency and antifouling properties.

BACKGROUND

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ART

As conventional methods for letting fabrics, etc. formed of synthetic, fibers, natural fibers and mixed fibers thereof have water repellency and oil repellency, many methods are used for treating the fabrics with fluorine-based compounds, silicone-based compounds, etc.

In recent years, consumers' demands for water repellency and oil repellency performance are growing sharply. Especially demands for clothes with excellent washing durability are strong in the field of sporting wear such as windbreakers, golf wear and ski wear, and demands for clothes with antifouling properties, especially food contamination resistance and washing removability of deposited contamination in addition to durable water repellency and oil repellency are growing in the field of ladies' wear such as coats, blouses, slacks and skirts and in the field of uniform wear such as working clothes and uniforms.

Means for letting fiber fabrics have water repellency and oil repellency durable against laundering include a method of mixing an isocyanate-based compound (Patent Document 1), a method of treating with an isocyanate-based compound and subsequently treating with a water repellent (Patent Document 2), a method of treating with a compound containing a polymerizable vinyl group and a condensable methylol group (Patent Document 3), a method of treating with an aqueous fluorine-based water/oil repellent and subsequently treating with a solvent-based fluorine-based water/oil repellent (Patent Document 4), a method of enhancing abrasion resistance during washing (Patent Document 5), etc. However, these methods are insufficient in washing durability and no method additionally assuring antifouling properties has been proposed.

Further, swimwear are also often requested to have water repellency and oil repellency (Patent Documents 6 and 7), and especially swimwear for swimming races, etc. are provided for the purpose of decreasing resistance, while general swimwear are provided for the purpose of decreasing energy loss with less water wettability in view of health. However, on a sandy beach, etc., in the case where a non-water repellent swimsuit or a slightly water repellent swimsuit or the like is worn, if the swimsuit and/or the sand is wet, there arises a problem of appearance, since the sand adheres to the swimsuit. Further, some sand not only temporarily adheres, but also penetrates into the clearances of the texture of the woven or knitted fabric, to raise such a problem that even if the fabric is washed, the sand cannot be removed. However, no proposal has been made with attention paid to this problem.

Patent Document 1: JP 54-1 33486A

Patent Document 2: JP54-139641A

Patent Document 3; JP59-130374A

Patent Document 4: JP60-151380 A

Patent Document 5: JP7-216749A

Patent Document 6: JP 11-279810

Patent Document 7: JP2002-294563A

DISCLOSURE OF THE INVENTION

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Problems to be Solved by the Invention

In view of the prior art background as described above, the object of this invention is to provide a fiber structure having excellent water repellency, oil repellency and antifouling properties, these properties are durable after washing.

Means for Solving the Problems

This invention employs the Mowing means for solving the above-mentioned problems. (1) A fiber structure characterized in that each of the single fibers used it is covered, on the surface thereof, with a resin film containing an organic fluorochemicals via a resin film containing a triazine ring-containing compound or a resin film containing an organic fluorochemicals and a triazine ring-containing compound, and that said fiber structure has a water repellency level of grade 4 or higher and an oil repellency level of grade 4 or higher after 20 times of washing, (2) A fiber structure, according to the abovementioned (1), wherein the thickness of said resin film containing a triazine ring-containing compound or said resin film containing an organic fluorochemicals and a triazine ring-containing compound is 5 to 100 nm. (3) A fiber structure, according to the abovementioned (1) or (2), wherein said resin film containing an organic fluorochemicals contains a triazine ring-containing compound and/or an isocyanate-based compound. (4) A fiber structure, according to any one of the abovementioned (1) through (3), wherein said fiber structure has a contamination resistance level of grade 3 or higher and a washing removability level of grade 3 or higher, respectively against food contamination after 20 times of washing, (5) A fiber structure, according to any one of the abovementioned (1) through (3), wherein said fiber structure has a contamination resistance level of grade 3 or higher and a washing removability level of grade 4 or higher, respectively against Indian ink contamination after 20 times of washing. (6) A fiber structure, according to any one of the abovementioned (1) through (3), wherein said fiber structure has a sand deposition preventability level of grade 3 or higher after 20 times of washing. (7) A fiber structure, according to any one of the abovementioned (1) through (3), wherein said fiber structure has a mud contamination removability level of grade 4 or higher after 20 times of washing. (8) Swimwear comprising the fiber structure as set forth in the abovementioned (6), (9) Swimwear, according to the abovementioned (8), wherein the fabric uses polyurethane-based elastic yarns and/or polytrimethylene terephthalate fibers at least partially.

EFFECTS OF THE INVENTION

According to this invention, since each fiber is covered, on the surface thereof, with a fluorine-based water/oil repellent compound layer via a very thin polymerization film, or with a very thin polymerization film containing a fluorine-based water/oil repellent compound, a fiber structure having durable water/oil repellency for washing and durable antifouling properties for washing can be stably supplied.

The multifunctional fiber structure of this invention can be effectively used especially for sporting wear application uniform wear application, casual wear application, general wear application, bedclothes application, interior application, etc.




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stats Patent Info
Application #
US 20100192272 A1
Publish Date
08/05/2010
Document #
File Date
12/31/1969
USPTO Class
Other USPTO Classes
International Class
/
Drawings
0


Triazine

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20100805|20100192272|fiber structure|[Solution] A fiber structure characterized in that each of the single fibers used in it is covered, on the surface thereof, with a resin film containing an organic fluorochemicals via a resin film containing a triazine ring-containing compound or containing an organic fluorochemicals and a triazine ring-containing compound, and that |Toray-Industries-Inc
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