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Method for imparting permanent long-lasting water repellency to textile structure

A fiber structure and fiber technology, which is applied in the field of waterproof fiber structure manufacturing, can solve the problems that the waterproof performance cannot reach the fiber dyeing process, etc., and achieve the effects of improving oil resistance, excellent friction resistance/wear resistance, and preventing dust adhesion Effect

Inactive Publication Date: 2015-11-04
MITSUBISHI FASHION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the waterproof performance of fluorine-based waterproofing agents with carbon numbers below 6, even when the fiber structure is not worn out, its waterproof performance is far from reaching the goals of the fiber dyeing and processing industry and consumption
Therefore, only temporary waterproofing products can be used at present

Method used

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  • Method for imparting permanent long-lasting water repellency to textile structure
  • Method for imparting permanent long-lasting water repellency to textile structure
  • Method for imparting permanent long-lasting water repellency to textile structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0139] First, the cotton 100% padding No. 30 warp and weft interwoven fabric (woven into a width of 152cm, length of 50m, weight 34.56kg), using indanthrene dye (also called reduction dyeing dye = vat dye): continuous Press dyeing-drying-reduction steaming, soaping-drying step operation, you can get dyed finished products. Use it to prepare 300m (total weight 207.36kg). Afterwards, the dyed product is given a fiber modifier by the bath immersion method. Then dry it, and use a fluorine-based waterproofing agent to perform: press dyeing-drying-heat treatment to obtain a waterproof cotton fabric. The operation will be described in more detail below.

[0140] (1) Pre-treatment of fiber modifier

[0141] Weigh out a 10% by mass aqueous solution of the pure component of the reaction mixture of 2,6-dichloro-4-hydroxy-1,3,5-triazine sodium salt and diaminobenzenesulfonate sodium salt, so that the weight of the fiber is 16 %Owm (33.18kg) amount. Afterwards, it was put into a circular d...

Embodiment 2

[0159] First, 100% woolen No. 52 / 1 line 2 / 2 No. 2 serge is dyed with 1:2 gold-containing dye. The dyed cloth is pre-treated with a fiber modifier by the bath immersion method. Secondly, water-proof woolen serge can be obtained by waterproofing. Hereinafter, the operation will be described in more detail.

[0160] (1) Pre-treatment of fiber modifier

[0161] First put in the winch: 20% owm fiber modifier pure component 10% by mass solution, 2g / L 48% acetic acid aqueous solution. Next, put the dyed woolen serge into the winch. Then adjust the pH of the solution in the winch to 5.2. The treatment bath volume, 1ton bath ratio is 1:30.

[0162] After that, the operation starts from the bath temperature of 30°C, and the temperature is raised at a rate of 1°C / min. After it reaches 60°C, the operation is performed at a constant temperature for 15 minutes. After that, the temperature was raised again at a rate of 2°C / min, and after it reached 80°C, it was operated for another 30 minutes...

Embodiment 3

[0174] First prepare 400m (total weight 148kg) 100% nylon 6 cloth 110t-20f Oxford cloth 148cm×50m=18.5kg, and then use jet dyeing machine 2200L (liquor ratio 1:15) for dyeing, washing and fixing Treatment (using phenolic synthetic fixing agent). After that, it was operated with a fiber modifier by a bath immersion method, and then a fluorine-based water repellent was used to obtain a water-repellent nylon 6. Hereinafter, the operation will be described in more detail.

[0175] (1) Pre-treatment of fiber modifier

[0176] First, a bath solution prepared with a 20% owm (29.6 kg) fiber modifier with a purity of 15% and a 0.25 g / L malic acid was put into the dyeing machine. Then put the dyed nylon 6 into it, and then start the operation at the bath temperature of 30°C. After that, the temperature is increased at a cloth speed of 380m / min and 2°C / min. After it reaches 60°C, it is operated at a constant temperature for 15 minutes. After that, the temperature was increased at a rate o...

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Abstract

The present invention provides a process for producing a textile structure which includes applying a mixture obtained by reacting (A) the sodium salt of 2,6-dichloro-4-hydroxy-1,3,5-triazine with (B) an alkali salt of diaminobenzenesulfonic acid, the (A) / (B) molar ratio being (A):(B)=1:1 to 1:3, as a fiber modifier to a textile structure. Even when a fluorochemical water repellant having 6 or less carbon atoms is used, it is possible to obtain a textile structure having water repellency which is permanently durable enough to withstand 100 or more operations of practical laundering and which is required at present.

Description

Technical field [0001] The present invention relates to a method for manufacturing a waterproof fiber structure, which comprises the reaction of 2,6-dichloro-4-hydroxy-1,3,5-triazine sodium salt and diaminobenzenesulfonic acid alkali salt The mixture is used in fiber structures. Background technique [0002] Traditionally, the use of fluorine-based water repellents has been an indispensable condition when applying durable water repellent processing to fiber structures. However, this fluorine-based water repellent cannot impart water repellency unless it is a substance containing a long-chain CF group with 8 or more carbon atoms. At the same time, in order to improve its wear resistance, when melamine resin and polyurethane resin are used together, its water resistance can be maintained. [0003] However, in recent years, regarding fluorine-based water repellents with a carbon number of 8 or more, it has been revealed in the United States that artificial chemical substances that c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/358D06M13/256D06M13/335
Inventor 金久庆一郎
Owner MITSUBISHI FASHION
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