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Preparation method and application method of low-temperature low-chromium dyeing auxiliary agent of acidic medium dye for wool

A technology of mordant dyes and dyeing auxiliaries, applied in the field of textile printing and dyeing, can solve problems such as unsatisfactory chromium pollution effect, and achieve the effects of being beneficial to effective reuse, increasing dyeing percentage and improving dyeing performance.

Inactive Publication Date: 2012-12-12
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these measures are not very effective in effectively reducing chromium pollution. In addition, there are no reports on the use of cationic biological protein derivative auxiliaries as low-temperature and low-chromium dyeing auxiliaries for wool acid mordant dyes.

Method used

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  • Preparation method and application method of low-temperature low-chromium dyeing auxiliary agent of acidic medium dye for wool
  • Preparation method and application method of low-temperature low-chromium dyeing auxiliary agent of acidic medium dye for wool
  • Preparation method and application method of low-temperature low-chromium dyeing auxiliary agent of acidic medium dye for wool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Collect duck feathers and clean them, prepare an acetic acid solution with a concentration of 0.3% by volume, pour the clean duck feathers into the acetic acid solution at 30°C, add 30 liters of acetic acid solution per kilogram of duck feathers, and soak for 10 minutes; then Wash the duck feathers with tap water until the duck feathers are neutral, and dry the washed duck feathers at room temperature; respectively weigh urea and sodium hydroxide and dissolve them in water to form a duck feather protein solution. Each liter of water contains urea 6 grams, 8 grams of sodium hydroxide, at 70°C, put the pre-treated duck feathers into the duck feather protein solution, and add 10 liters of duck feather protein solution per kilogram of duck feathers, and dissolve for 120 minutes; After the wool protein dissolution is completed, cool the duck feather protein solution to room temperature, filter the obtained dissolved duck feather protein solution with gauze for 3 times, remove...

Embodiment 2

[0108] Collect duck feathers and clean them, prepare an acetic acid solution with a concentration of 0.5% by volume, pour the clean duck feathers into the acetic acid solution at 40°C, add 40 liters of acetic acid solution per kilogram of duck feathers, and soak for 30 minutes; then Wash the duck feathers with tap water 5 times until the duck feathers are neutral, and dry the washed duck feathers at room temperature; respectively weigh urea and sodium hydroxide and dissolve them in water to form a duck feather protein solution. Each liter of water contains 6 grams of urea, 8 grams of sodium hydroxide, at 85 ° C, put the pre-treated duck feathers into the duck feather protein solution, add 20 liters of duck feather protein solution per kilogram of duck feathers, and dissolve for 140 minutes; After the duck feather protein dissolution is completed, cool the duck feather protein solution to room temperature, filter the obtained dissolved duck feather protein solution with gauze fo...

Embodiment 3

[0117] Collect duck feathers and clean them, prepare an acetic acid solution with a concentration of 0.7% by volume, pour the clean duck feathers into the acetic acid solution at 50°C, add 50 liters of acetic acid solution per kilogram of duck feathers, and soak for 50 minutes; then Wash the duck feathers with tap water for 7 times until the duck feathers are neutral, and dry the washed duck feathers at room temperature; weigh urea and sodium hydroxide and dissolve them in water to prepare a duck feather protein solution. Each liter of water contains 6 grams of urea, 8 grams of sodium hydroxide, under the condition of 100 ℃, put the pre-treated duck feathers into the duck feather protein solution, add 30 liters of duck feather protein solution per kilogram of duck feathers, and dissolve for 180 minutes; After the duck feather protein dissolving is completed, cool the duck feather protein solution to room temperature, filter the obtained dissolved duck feather protein solution f...

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Abstract

The invention discloses a preparation method and an application method of a low-temperature low-chromium dyeing auxiliary agent of an acidic medium dye for wool. The preparation method comprises the steps that: 1, protein powder is prepared by using waste duck feather, wherein (1) the duck feather is subjected to pretreatment; (2) the suck feather is subjected to a dissolving treatment; and (3) duck feather protein powder is prepared; 2, a sodium hydroxide solution is prepared, and the sodium hydroxide solution is used for dissolving the duck feather protein powder; 3, sodium hydroxide, triethanolamine, and epichlorohydrin are adopted for preparing a cationic quaternary ammonium salt cross-linking modification agent WLS; and 4, the low-temperature low-chromium dyeing auxiliary agent for the acidic medium dye is prepared. The auxiliary agent can be used as a wool modification agent. After wool fibers are modified, wool fiber dyeing properties of acidic medium dyes are greatly improved, dye uptake percentage rate can be improved, mordant absorption performance of the dye is improved, chromium pollution in dye wastewater is reduced, wool fiber low-temperature low-chromium dyeing is realized, and waste duck feather keratin is effectively utilized. After modification, the wearability of wool products is improved.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and relates to a method for preparing a dyeing auxiliary, in particular to a method for preparing a low-temperature and low-chromium dyeing auxiliary for wool acid mordant, and a method for using the dyeing auxiliary. Background technique [0002] Acid mordant dyes can be used to dye wool, silk and polyamide fibers. At present, 35% of the world's wool dyes are mordant dyes, and the annual consumption is 7700t, of which my country accounts for 29% of the total consumption. [0003] Acid mordant dyes have higher fastness to light and humidity than acid dyes, and better fastness to milling and cooking than neutral dyes. At the same time, due to the small molecular weight of the dye, it has good water solubility and good levelness. , so that acid mordant dyes are an important dye for wool fiber dyeing; however, acid mordant dyes have residual metal chromium in the dyeing waste li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/66D06P3/16C08H1/00C07K14/465C07K1/14
Inventor 王雪燕戴建芳
Owner XI'AN POLYTECHNIC UNIVERSITY
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