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Continuous pad dyeing and shortened wet steaming processing technology for towel and sheet fabric vat dye

A processing technology, short wet steaming technology, applied in the textile field, can solve the problems of high energy consumption, achieve the effects of ensuring the stability of additives, improving the dyeing fixation rate, and ensuring stability

Active Publication Date: 2013-04-10
SUNVIM GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the continuous dyeing of textiles with vat dyes in China is mainly knitted fabrics and woven fabrics, and they all use the process of pad-drying-pad-steaming, which consumes a lot of energy.
Towel products are continuously dyed with vat dyes using a pad steamer, which is still technically blank at present

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

[0035] A kind of fabric vat dye continuous pad dyeing short wet steam processing technology, comprising the following steps in sequence:

[0036] (1) Padding and dyeing solution: use a small-capacity rolling tank with a capacity of 75L and a uniform padding car with a pressure roller oil pressure of 0.440bar. The uniform padding car is made of a padding car produced by German Küster Company, and the pressure roller used is a rubber roller. The hardness of the rubber roller is Shore 60°, and the pressure parameters of the rubber roller can be adjusted directly by using the button of the equipment: the deviation is 0.020bar, 0.030bar, 0.160bar respectively; the maximum pressure deviation of the edge line is 2.0N / mm, the line The pressure is 10N / mm; the air pressure of the cylinder is 0.7bar; the length of head-to-tail color difference correction is 50 meters, and the head-to-tail color difference correction pressure is 5N / mm; Maintain a surplus rate of 90%;

[0037] (2) Adding ...

Embodiment 2

[0043] A kind of fabric vat dye continuous pad dyeing short wet steam processing technology, comprising the following steps in sequence:

[0044] (1) Padding and dyeing solution: use a small-capacity rolling tank with a capacity of 80L and a uniform padding machine with an oil pressure of 2.220bar. The roller is a rubber roller, and the hardness of the rubber roller is 70° Shore. Directly use the password button that comes with the equipment to adjust the pressure parameters of the rubber roller: the deviations are 0.020bar, 0.030bar, and 0.160bar; 2.0N / mm, the line pressure is 50N / mm; the cylinder air pressure is 3.5bar; the head and tail color difference correction length is 50 meters, and the head and tail color difference correction pressure is 5N / mm; The fabric is pad-dyeed, and the remaining padding rate is 95%;

[0045] (2) Adding auxiliaries: Use the high liquid supply device with an auxiliary tank capacity of 1000L produced by Küster in Germany or Benninger in Switze...

Embodiment 3

[0051] A kind of fabric vat dye continuous pad dyeing short wet steam processing technology, comprising the following steps in sequence:

[0052] (1) Padding and dyeing solution: use a small-capacity rolling tank with a capacity of 78L and a uniform rolling car with a pressure roller oil pressure of 1.500. It is a rubber roller, and the hardness of the rubber roller is Shore 65°. Directly use the button that comes with the equipment to adjust the pressure parameters of the rubber roller: the deviations are 0.020bar, 0.030bar, and 0.160bar respectively; the maximum edge line pressure deviation is 2.0N / mm, the line pressure is 30N / mm; the cylinder air pressure is 2.1bar; the head and tail color difference correction length is 50 meters, and the head and tail color difference correction pressure is 5N / mm; Carry out pad dyeing, keep the excess rate of 93%;

[0053] (2) Adding auxiliaries: Use the high liquid supply device with a capacity of 1000L of the auxiliaries tank produced...

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Abstract

The invention discloses a continuous pad dyeing and shortened wet steaming processing technology for a towel and sheet fabric vat dye. The processing technology comprises the following sequential steps that (1), a small-capacity groove with a capacity of 75-80L and an evenness calender with compression roller oil pressure of 0.440-2.220bar are adopted, towel and sheet fabric is subjected to pad dyeing with the vat dye, and a pick-up ratio is kept as 90-95%; (2), an assistant is supplied by a high liquid supply device, a stain ratio of the assistant on the towel and sheet fabric is kept as 90-100%, and the assistant comprises 100-160ml / L of 42wt% caustic soda solution and 50-80g / L of sodium hydrosulfite; (3), rapid steaming is conducted; (4) high-efficiency water washing is conducted; and (5) oxidation is conducted with hydrogen peroxide oxidation liquid, and the towel and sheet fabric dyed by the vat dye is obtained. According to the processing technology, the dyeing quality of the vat dye is improved greatly, the dip dyeing defect of the vat dye is overcome, the production efficiency is high, the energy consumption is low, the labor intensity is low, and the environmental pollution is little.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a short-wet-steaming process for continuous pad dyeing of towel fabrics with vat dyes. Background technique [0002] The dyeing mechanism of vat dyes is very different from that of reactive dyes. Reactive dyes are reactive dyes. The dyeing mechanism is through the reactive groups carried by reactive dyes, which undergo cross-chain reaction with cellulose fiber-OH under alkaline conditions. , so as to be firmly fixed on the fiber. The dyeing mechanism of vat dyes is more complicated, mainly because vat dyes themselves are insoluble in water and are in a granular suspension state in water, which cannot dye fibers. Only after being reduced to leuco can they be dissolved in water and dye fibers. The leuco is an unstable intermediate, which can be fixed on the fiber and show its normal luster only after oxidation, and has good color fastness. At present, quilt fabrics are seldom dy...

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): D06P1/22D06P1/673D06P5/02D06B21/00D06B3/18
Inventor 周文国鹿秀洁贾李峰钱宗红
Owner SUNVIM GROUP
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