Dyeing method for soybean fibres and blended fabric of soybean fibres

A technology for soybean protein fibers and blended fabrics, applied in the field of dyeing and finishing, can solve the problems of difficulty in bleaching soybean protein fibers, low whiteness of bleached fabrics, and lower dyeing costs, and achieve the effects of shortening the dyeing process, reducing dyeing costs, and being easy to operate.

Inactive Publication Date: 2012-11-07
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using isoflavone pigments naturally present in soybean protein fibers as dyes, it does not need to bleach the fabric, solves the problems of difficult bleaching of soybean protein fibers and their blended fabrics, and low whiteness of bleached fabrics, and does not need to add dyes and The auxiliaries dye the fabric, which not only shortens the dyeing process, but also reduces the cost of dyeing

Method used

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  • Dyeing method for soybean fibres and blended fabric of soybean fibres
  • Dyeing method for soybean fibres and blended fabric of soybean fibres

Examples

Experimental program
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Effect test

Embodiment 1

[0013] A method for dyeing soybean protein fiber and its blended fabrics. Ferrous sulfate is used as a mordant, the amount of ferrous sulfate is 5g / L, the pH of the solution is adjusted to 5 with acetic acid, the bath ratio is 1:50, and soybean protein is mixed at 40°C. Put the fiber knitted fabric into the above solution, raise the temperature to 80°C at a rate of 1°C / min, keep it warm for 40min, finish dyeing, wash with water, and dry in the air.

Embodiment 2

[0015] A method for dyeing soybean protein fiber and its blended fabrics. Copper sulfate is used as a mordant. The dosage of copper sulfate is 0.1g / L. The pH of the solution is adjusted to 6 with acetic acid. The bath ratio is 1:20. Put the knitted fabric into the above solution, raise the temperature to 70°C at a rate of 0.5°C / min, keep it warm for 60min, finish dyeing, wash with water, and dry in the air.

Embodiment 3

[0017] A dyeing method of soybean protein fiber and its blended fabrics, using cobalt nitrate as a mordant, the amount of cobalt nitrate is 3g / L, the pH of the solution is adjusted to 4 with acetic acid, the bath ratio is 1:10, and the soybean protein fiber is knitted at 40°C Put the material into the above solution, raise the temperature to 90°C at a rate of 2°C / min, keep it warm for 20min, wash it with water, and dry it in the air.

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Abstract

The invention discloses a dyeing method for soybean fibres and a blended fabric of soybean fibres. Dyeing is performed on the soybean fibres or the blended fabric of the soybean fibres through using an after-mordant method by using a mordant; and the dyeing process using the after-mordant method comprises the following steps of: pouring the soybean fibres and the blended fabric thereof in a mordant solution at 30-50 DEG C, adjusting the pH to be 4-7 by acetic acid, and adjusting a bath ratio to be 1: (10 to 100), then heating to be at 40-100 DEG C with a heating speed of 0.5-2 DEG C/min, carrying out heat preservation for 10-90 minutes, and after the dyeing is finished, washing with water, and airing. According to the dyeing method for the soybean fibres and the blended fabric of the soybean fibres, tannin or a metal slat or a mixture of the tannin and the metal slat is used as the dyeing mordant, a coordination compound is formed by intrinsic isoflavone pigments of the soybean fibres and the tannin or the metal slat or the mixture of the tannin and the metal slat, so that the fabric presents different colours; the soybean fibres do not need to be subjected to bleaching processing additionally; and dyes are not required to be added during the dyeing process.

Description

[0001] technical field [0002] The invention belongs to the technical field of dyeing and finishing, and relates to a post-mordant dyeing of soybean protein fiber or its blended fabric by using tannic acid or metal ions or a mixture thereof. The dyed fabric does not need to be bleached, and no dye needs to be added during the dyeing process. , the dyeing of soybean protein fiber or its blended fabric can be realized. Background technique [0003] Soybean protein fiber is a new type of fiber independently developed and researched in my country. It uses oil-pressed soybean meal as raw material, uses bioengineering technology to extract globulin in soybean meal, and adds functional additives to combine with nitrile groups, hydroxyl groups, etc. High polymers are grafted, copolymerized, and blended to make a protein spinning solution with a certain concentration, and the spatial structure of the protein is changed, and it is formed by wet spinning. It has cashmere-like soft fee...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/238D06M11/56D06M11/48D06M11/65D06M101/04D06M101/16
Inventor 曹机良孟春丽王宏许志忠张晓峰
Owner HENAN INST OF ENG
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