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A Rope Pretreatment Process Based on Low Alkali Scouring Agent

A scouring agent and pre-treatment technology, applied in enzyme/microbial biochemical treatment, fiber treatment, biochemical fiber treatment, etc., can solve the problems of fabric damage, pollute the environment, affect the appearance and feel of fabrics, and reduce the alkali content , high capillary effect, enhanced desizing effect

Active Publication Date: 2018-03-02
SHANDONG HUANGHE DELTA INST OF TEXTILE SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the traditional rope-like pretreatment process of cotton fabric uses high-concentration strong alkali (>40g / l), which will cause great damage to the fabric, affect the appearance and feel of the fabric, and seriously pollute the environment. A Rope Pretreatment Process Based on Low Alkali Scouring Agent

Method used

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  • A Rope Pretreatment Process Based on Low Alkali Scouring Agent
  • A Rope Pretreatment Process Based on Low Alkali Scouring Agent
  • A Rope Pretreatment Process Based on Low Alkali Scouring Agent

Examples

Experimental program
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Effect test

Embodiment 1

[0034] The high-efficiency penetrating agent is composed of the following mass percentages: sodium bis[(2-ethylhexyloxy)ethyl] phosphate 10%, isomeric alcohol polyoxyethylene ether 30%, and distilled water 60%.

[0035] The low alkali scouring agent is composed of the following mass percentages, fatty alcohol polyoxyethylene ether 15%, ethylene-bis(N-ethanesulfonic acid-dodecamide) sodium salt 10%, fatty acid methyl ester ethoxylate 10%, distilled water 65%.

[0036] Technological process: seam turning → singeing → enzyme desizing → rope two-step low-alkali scouring → rope oxygen bleaching.

[0037]Specific process conditions and additive dosage: the gray cloth is directly padded with enzyme solution to extinguish the fire after seam turning and singeing, the vehicle speed is 140m / min, the temperature of the enzyme solution is 50°C, the liquid carrying rate of gray cloth is 85%, and it is piled up in a rope shape at 20°C 3h, low-temperature amylase dosage 1.5g / L, high-efficie...

Embodiment 2

[0039] The high-efficiency penetrating agent is composed of the following mass percentages: sodium bis[(2-ethylhexyloxy)ethyl] phosphate 10%, isomeric alcohol polyoxyethylene ether 30%, and distilled water 60%.

[0040] The low alkali scouring agent is composed of the following mass percentages, fatty alcohol polyoxyethylene ether 15%, ethylene-bis(N-ethanesulfonic acid-dodecamide) sodium salt 10%, fatty acid methyl ester ethoxylate 10%, distilled water 65%.

[0041] Technological process: seam turning → singeing → enzyme desizing → rope two-step low-alkali scouring → rope oxygen bleaching.

[0042] Specific process conditions and additive dosage: the gray cloth is directly padded with enzyme solution to extinguish the fire after seam turning and singeing, the vehicle speed is 140m / min, the temperature of the enzyme solution is 60°C, the liquid carrying rate of gray cloth is 90%, and it is piled up in a rope shape at 30°C 2h, the amount of low-temperature amylase 2g / L, high-e...

Embodiment 3

[0044] The high-efficiency penetrating agent is composed of the following mass percentages: sodium bis[(2-ethylhexyloxy)ethyl] phosphate 15%, isomeric alcohol polyoxyethylene ether 40%, and distilled water 45%.

[0045] The low alkali scouring agent is composed of the following mass percentages, fatty alcohol polyoxyethylene ether 20%, ethylene-bis(N-ethanesulfonic acid-dodecamide) sodium salt 10%, fatty acid methyl ester ethoxylate 15%, distilled water 55%.

[0046] Technological process: seam turning → singeing → enzyme desizing → rope two-step low-alkali scouring → rope oxygen bleaching.

[0047] Specific process conditions and additive dosage: the gray cloth is directly padded with enzyme solution to extinguish the fire after seam turning and singeing, the vehicle speed is 140m / min, the temperature of the enzyme solution is 50°C, the liquid carrying rate of gray cloth is 85%, and it is piled up in a rope shape at 20°C 3h, low-temperature amylase dosage 1.5g / L, high-effici...

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Abstract

The invention relates to a rope-form pretreatment process based on a low-alkaline scouring agent. The process comprises steps of batching, singeing, enzyme desizing, rope-form low-alkaline scouring with a two-step method and rope-form oxygen bleaching. The enzyme desizing efficiency is improved by the aid of an efficient penetrant, a sizing agent on fabric is effectively removed by using the low-alkaline scouring agent, and the use amount of alkali in the scouring process is reduced. The use amount of caustic soda is reduced while the pretreatment effect is guaranteed, the pH value of wastewater is reduced, and the biodegradability of the wastewater is improved.

Description

technical field [0001] The invention belongs to the application technical field of textile printing and dyeing pretreatment, and relates to a rope pretreatment process of pure cotton fabric based on a low-alkali scouring agent. Background technique [0002] Cotton fabric has the advantages of strong hygroscopicity, good warmth retention, and comfortable wearing, so it has become one of the most commonly used fabrics. However, the natural impurities on the cotton fiber and the size, auxiliaries and contaminants applied during the textile process have seriously affected the dyeing, printing, finishing and other properties of cotton fabrics. Therefore, the first process of dyeing and finishing cotton fabrics is Pre-treatment to remove natural impurities on cotton fibers and sizing applied during the weaving process. [0003] Traditional printing and dyeing pretreatment processes mainly include rope pretreatment and flat width pretreatment. Compared with open width pretreatmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M16/00D06M15/53D06M13/292D06M13/402D06M13/224D06M101/06
CPCD06M13/224D06M13/292D06M13/402D06M15/53D06M16/003D06M2101/06
Inventor 房宽峻贺佩芝高志超林凯付真苏长智申继卫刘斌李付杰李志芬
Owner SHANDONG HUANGHE DELTA INST OF TEXTILE SCI & TECH RES INST
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