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Fabric durable water repellent finishing agent and preparation method thereof

A water-repellent finishing and durable technology, which is applied in the fields of fiber treatment, textiles and papermaking, etc., can solve the problems of reducing the water-repellent effect of fabrics, not being resistant to washing, and not containing alkaline, acidic or hydrophilic surface active substances, etc., to achieve Good waterproof and breathable effect, good hand feeling effect

Inactive Publication Date: 2013-03-13
WUJIANG DEKELI TEXTILE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current common water-repellent finishing agents generally have shortcomings such as not being resistant to washing and dry cleaning, and the fabric must be fully treated before water-repellent finishing, and the fabric must not contain alkaline, acidic or hydrophilic surface active substances, otherwise the fabric will be greatly reduced water repellent effect

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A fabric durable water-repellent finishing agent, in parts by weight, consists of the following components:

[0023] Methyl hydrogen silicone oil emulsion: 3, epoxy resin: 10, acetone: 20,

[0024] Ammonium acetate: 1, polyvinyl alcohol: 10, sodium hydroxide: 0.2,

[0025] Urea: 3, Sodium Chloride: 1, Dimethyl Phthalate: 1, Water: 120.

Embodiment 2

[0027] A fabric durable water-repellent finishing agent, in parts by weight, consists of the following components:

[0028] Methyl hydrogen silicone oil emulsion: 5, epoxy resin: 20, acetone: 30,

[0029] Ammonium acetate: 3, polyvinyl alcohol: 20, sodium hydroxide: 0.8,

[0030] Urea: 8, Sodium Chloride: 3, Dimethyl Phthalate: 3, Water: 200.

Embodiment 3

[0032] A fabric durable water-repellent finishing agent, in parts by weight, consists of the following components:

[0033] Methyl hydrogen silicone oil emulsion: 4, epoxy resin: 16, acetone: 25,

[0034] Ammonium acetate: 2, polyvinyl alcohol: 16, sodium hydroxide: 0.6,

[0035] Urea: 6, Sodium Chloride: 2, Dimethyl Phthalate: 2, Water: 160.

[0036] In the above-mentioned embodiment, the preparation method of the described durable water-repellent finishing agent for fabrics comprises the following steps:

[0037] (1) Mix epoxy resin, acetone and polyvinyl alcohol, heat up to 60-80°C, and react for 1-3 hours;

[0038] (2) Add dimethyl phthalate into water, stir and mix well;

[0039] (3) Add the product of step (1) to the product of step (2), stir evenly, and react for 2 to 3 hours;

[0040] (4) Cool to room temperature, add the remaining components, stir and mix evenly to obtain the product.

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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PUM

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Abstract

The invention discloses a fabric durable water repellent finishing agent and a preparation method thereof. The fabric durable water repellent finishing agent consists of the following components in parts by weight: 3-5 parts of methyl hydrogen silicone oil emulsion, 10-20 parts of epoxy resin, 20-30 parts of acetone, 1-3 parts of ammonium acetate, 10-20 parts of polyving akohol, 0.2-0.8 part of sodium hydroxide, 3-8 parts of urea, 1-3 parts of sodium chloride, 1-3 parts of dimethyl phthalate, and 120-200 parts of water. Compared with the prior art, the fabric durable water repellent finishing agent has the following beneficial effects that (1) the finishing agent is resistant to washing and dry cleaning, and can not reduce the water repellent effect of a fabric when encountering substances such as acid, alkali and hydrophilic surfactants; and (2) the fabric treated by the finishing agent is not only good in waterproof and breathable effects, but also very good in hand feel.

Description

technical field [0001] The invention belongs to the technical field of textile auxiliaries, and more specifically relates to a fabric durable water-repellent finishing agent and a preparation method thereof. Background technique [0002] Water-repellent finishing is air-permeable waterproof finishing, which can change the properties of the fabric fiber surface, making the fiber surface hydrophilic to hydrophobic, making the fiber breathable and not easily wetted by water. [0003] The current common water-repellent finishing agents generally have shortcomings such as not being resistant to washing and dry cleaning, and the fabric must be fully treated before water-repellent finishing, and the fabric must not contain alkaline, acidic or hydrophilic surface active substances, otherwise the fabric will be greatly reduced water repellent effect. Contents of the invention [0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide...

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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IPC IPC(8): D06M15/55D06M15/333D06M15/643D06M13/432D06M13/188D06M13/224D06M11/13D06M11/38
Inventor 徐伟
Owner WUJIANG DEKELI TEXTILE PROD
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