Treatment of textile product for imparting water and oil repellency

a technology for textile products and oil repellency, applied in the direction of physical treatment, detergent compounding agents, liquid repellent fibres, etc., can solve the problems that the exhaust process oil repellency and soil releasability, and cannot achieve the requirements of water repellency and oil repellency. , to achieve the effect of reducing the amount of was

Inactive Publication Date: 2003-06-12
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sufficient water repellency, oil repellency and soil releasability cannot be obtained by conducting the Exhaust process in accordance with these methods.

Method used

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  • Treatment of textile product for imparting water and oil repellency
  • Treatment of textile product for imparting water and oil repellency
  • Treatment of textile product for imparting water and oil repellency

Examples

Experimental program
Comparison scheme
Effect test

example 2

Preparative Example 2

Preparation of (b) a Fluorine-containing Water- and Oil-repellent Agent Free of Vinyl Chloride

[0115] CH.sub.2.dbd.CHCOO(CH.sub.2).sub.2(CF.sub.2CF.sub.2).sub.nCF.sub.2C-F.sub.3 (a mixture of compounds wherein n is 3, 4 and 5 in a weight ratio of 5:3:1) (FA), stearyl acrylate (StA), 2-hydroxyethyl methacrylate (2ERA), glycidyl methacrylate (BLENMER G), N-methylolacrylamide (N-MAM), 3-chloro-2-hydroxypropyl methacrylate (TOPOLEN M), deionized water, n-laurylmercaptan (LSH), polyoxyethylene-alkylphenyl ether sulfate ammonium (HITENOL N-17, an anionic emulsifier), polyoxyethylenealkylpheny-l ether (NONION HS-220, a nonionic emulsifier), sorbitan monolaurate (LP-20R, a nonionic emulsifier) and dipropylene glycol monomethylether (DPM) were mixed in the amounts shown in Table 4 to give a mixture liquid.

[0116] This mixture liquid was heated at 60.degree. C. and emulsified by a high pressure homogenizer. The resultant emulsion was charged into a 1 L autoclave and subject...

example 1

[0117] 0.9 Grams of a mixture liquid of the fluorine-containing water- and oil-repellent agent (a) (which is a fluorine-containing water- and oil-repellent agent containing vinyl chloride) produced in Preparative Example 1 and the fluorine-containing water- and oil-repellent agent (b) (which is a water- and oil-repellent agent free of vinyl chloride) produced in Preparative Example 2 (the mixing weight ratio of 8 to 2 in terms of solid) and 5 g of a stain blocking agent FX-657 (manufactured by 3M) were diluted with water to 1,000 g to give a mixture liquid. The solid weight ratio of the water- and oil-repellent agent and the stain blocking agent was 1:5.6. The pH of the mixture liquid was adjusted to 1.5 by adding a 10% aqueous solution of sulfamic acid to give a treatment liquid.

[0118] A carpet (8.9 cm.times.18.2 cm, nylon 6,6, cut piled, density: 36 oz / yd.sup.2) was immersed in the treatment liquid for 30 seconds. Then, the carpet was squeezed to give the WPU (wet pick up) of 300%...

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Abstract

A textile having sufficient water repellency, oil repellency and soil releasability before and after cleaning can be prepared by a method of preparing a treated textile has the steps of (1) preparing a treatment liquid containing a water- and oil-repellent agent and a stain blocking agent, (2) bringing the pH of the treatment liquid to at most 7, (3) applying the treatment liquid to the textile, (4) thermally treating the textile with steam, and (5) washing the textile with water and dehydrating the textile, wherein the water- and oil-repellent agent has a combination of (A) a fluorine-containing polymer comprising a repeat unit derived from vinyl chloride and / or vinylidene chloride, and (B) a fluorine-containing polymer free from a repeat unit derived from vinyl chloride and / or vinylidene chloride.

Description

[0001] The present invention relates to a treatment for imparting water repellency, oil repellency, soil releasability and durability thereof to a textile. A method of the present invention is particularly useful for carpet.RELATED ART[0002] Hitherto, various treatment methods have been proposed in order to impart water repellency, oil repellency and soil releasability to a textile such as a carpet. For example, a process of treating a textile comprising decreasing the pH of a treatment liquid, applying the treatment liquid to the textile, thermally treating the textile with steam, washing the textile with water, and dehydrating the textile (hereinafter, sometimes referred to as "Exhaust process") is proposed.[0003] A method comprising the Exhaust process is proposed in U.S. Pat. Nos. 5,073,442, 5,520,962 and 5,516,337, and International Publication WO 98 / 50619.[0004] U.S. Pat. No. 5,073,442 discloses a method of treating a textile, comprising conducting an Exhaust process by using ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D06M15/248D06M15/277
CPCD06M15/248D06M15/277D06M2200/12D06M2200/11D06M2101/16
Inventor ENOMOTO, TAKASHIYAMAMOTO, IKUOFUKUDA, TERUYUKIOTSUKI, NORIHITO
Owner DAIKIN IND LTD
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