Method of improving dyeing property of natural dye for cotton fabrics by using sericin

A technology of dyeing performance and natural dyes, applied in natural dyes, dyeing methods, azo dyes, etc., to improve the anti-wrinkle performance, ensure the washing fastness of dyeing, and the effect of bright color

Inactive Publication Date: 2012-07-11
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] And the present invention is for improving the dyeing performance of natural dyestuff to cotton fabric, tries to carry out sericin modification finishing to cotton cloth with citric acid as crosslinking agent, while improving cotton fabric anti-wrinkle performance, to improve berberine natural dyestuff to Dye uptake of cotton fabrics, there is no similar report

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Preparation of pigment stock solution: Take 2 g of dried rhizome of Coptis rhizome and chop into 0.1-10 cm fragments, then immerse in 200 mL of water, soak for 60 min, and then decoct twice (at a temperature of about 100 ° C), each time for 40 min , combining twice the filtrate to remove the residue, to obtain the coptis pigment stock solution;

[0020] 2) Preparation of powdered dye: Concentrate 100 mL of Coptidis pigment stock solution by rotary evaporation at room temperature to 50 mL, and put the concentrated Coptidis pigment stock solution into the pre-freezing chamber of a freeze dryer whose temperature is programmed to drop to -80°C for 3 hours to make it Freeze completely, and then freeze-dry for 15 hours with a freeze dryer (vacuum degree is 1 bar, drying temperature is normal temperature, and it is in another drying room) to obtain the powdered dye of Coptis rhizome.

[0021] 3) Pretreatment of cotton fabric: take commercially available sericin powder, citr...

Embodiment 2

[0027] 1) Preparation of pigment stock solution: Take 5g of dried Cortex Phellodendri and chop into 0.1-10cm fragments, then immerse in 100mL water, soak for 30min, then decoct twice (at a temperature of about 100°C), each time for 60min, combine Twice remove the filtrate of residue to get the Phellodendron pigment stock solution;

[0028] 2) Preparation of powder dyes: Concentrate 100mL of Phellodendron pigment stock solution by rotary evaporation at room temperature to 80mL, and put the concentrated Phellodendron pigment stock solution into the pre-freezing chamber of a lyophilizer whose temperature is programmed to drop to -80°C for 2 hours to make it Freeze completely, and then freeze-dry for 16 hours to obtain the powder dye of Cork Phellodendron.

[0029] 3) Pretreatment of cotton fabric: take commercially available sericin powder, citric acid, and sodium hypophosphite, add water, and dissolve at room temperature to obtain a sericin modification liquid, wherein the amoun...

Embodiment 3

[0035]1) Preparation of the pigment stock solution: Take 8g of dry Shikaongilao leaves and chop them into 0.1-10cm fragments, then immerse them in 1000mL water, soak for 45min, and then decoct twice (at a temperature of about 100°C), decocting each time The time is 45 minutes, and the filtrates that have been removed from the residue twice are combined to obtain the ten major contribution pigment stock solution;

[0036] 2) Preparation of powder dye: Concentrate 100mL of Shigongong pigment stock solution by rotary evaporation at room temperature to 50mL, and put the concentrated Shigonggong pigment stock solution into the pre-freezing chamber of a freeze dryer whose temperature is programmed to drop to -85°C for pre-freezing 2.5 hours to make it completely freeze, and then freeze-dry for 18 hours with a freeze dryer to obtain the powder dye with ten great contributions.

[0037] 3) Pretreatment of cotton fabric: take commercially available sericin powder, citric acid, and sodi...

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PUM

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Abstract

The invention relates to a method of improving the dyeing property of natural dye for cotton fabrics by using sericin. The method of improving the dyeing property of the natural dye for the cotton fabrics by using the sericin is characterized in that the method comprises the following steps: (1), preparation of stock pigment liquor: chopping a dry berberine natural plant into segments, immersing the berberine natural plant in segments into water for 30-60min according to the mass ratio (1 : 20-200) of the berberine natural plant in segments to the water, boiling out the berberine natural plant for twice (30-120min for each time), and obtaining the berberine stock pigment solution by merging filtrate with residual removed obtained at the two times; (2), preparation of powder dye; (3) pretreatment of the cotton fabrics: preparing sericin modification liquid: dissolving and mixing the sericin, citric acid, sodium monophosphate and water at room temperature with the mixing ratio of 10-50g : 0.1-50g : 0.1-20g : 1L among the sericin, citric acid, sodium monophosphate and water, and obtaining the sericin modification liquid; and (4), dyeing, and obtaining the dyed cotton fabrics modified by the sericin. The method can improve the dyeing property of the natural dye for the cotton fabrics.

Description

technical field [0001] The invention relates to a method for improving the dyeing performance of natural dyes of cotton fabrics by using sericin, which belongs to the technical field of textile dyeing and finishing. Background technique [0002] Most of the natural dyes come from plants, minerals, animals and microorganisms, among which plant dyes are the main ones. Many of the plants used to extract dyes are themselves Chinese herbal medicines. Most of these plant dyes have anti-inflammatory and bactericidal effects, and the sources are also very wide. Modern textiles can use medicinal plant dyes as natural antibacterial finishing agents to produce green health care textiles. Among them, the berberine natural dyes are derived from the extracts of Chinese medicines Coptis chinensis, Cortex Phellodendron and Shigonggong. They are soluble in hot water and alcohol, have a yellow color and good stability, and can be directly dyed with silk and wool. The resulting textiles also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/34D06P3/60D06M15/15D06M13/207D06M13/288C09B61/00
Inventor 柯贵珍于伟东蔡光明石先军吴济宏
Owner WUHAN TEXTILE UNIV
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