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Method for dyeing modified cellulose fabrics by green walnut epicarp pigment

A technology of cellulose fiber and walnut exocarp, applied in the direction of dyeing, fiber treatment, plant fiber, etc., can solve the problems of low fixation rate and dyeing rate of fiber fabrics, non-bright fabric color, low color fastness, etc., to achieve The dyeing process is simple and easy, it can treat skin itching and swelling, and the dyeing quality is good

Inactive Publication Date: 2012-08-22
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research on the dyeing performance of natural plant dyes is mainly concentrated on natural protein fibers, mainly because natural fibers are polar fibers, while natural plant dyes are non-polar, and the binding force between them is small and the affinity is poor. The fixing rate and dyeing rate of fiber fabrics are low, the color of the dyed fabrics is not bright, and the dyeing fastness is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The dyeing of embodiment 1 modified cotton fabric

[0050] ①Modification of cotton fabric

[0051] The modifier is: 3-chloro-2-hydroxytrimethylammonium chloride

[0052] Mix cotton fabric and water at a mass ratio of 1:30, add modifier and NaOH, heat up to 70°C at a rate of 2°C / min at room temperature, react at 70°C for 50min and keep stirring; the modified Cotton fabrics are washed in hot water: 45°C for 10 minutes→cold water wash→pickling: wash with mass-volume concentration of 2g / L HAC aqueous solution for 2min→water wash to neutral→drying: 80°C, 1h; Calculate by adding 50g to 1L of water; calculate by adding 15g of NaOH per 1L of water;

[0053] ②Extraction of green walnut exocarp pigment

[0054] Extractant: NaOH aqueous solution with mass-volume concentration of 16g / L

[0055] Mix green walnut exocarp powder (particle size 40 mesh) with NaOH aqueous solution with a mass-volume concentration of 16g / L at a mass ratio of 1:15, extract at 60°C for 40min, filter an...

Embodiment 2

[0062] The dyeing of embodiment 2 modified flax fabrics

[0063] ①Modification of linen fabric

[0064] The modifier is: 3-chloro-2-hydroxytrimethylammonium chloride

[0065] Mix the flax fabric with water at a mass ratio of 1:30, add modifier and NaOH, raise the temperature to 75°C at a rate of 2°C / min at room temperature, react at 75°C for 50min and keep stirring; the modified Linen fabrics are washed in hot water: 45°C for 10 minutes → cold water washing → acid washing: washing with mass-volume concentration of 2g / L HAC aqueous solution for 2 minutes → water washing to neutral → drying; among them, the modifier is calculated as 52g per 1L of water ;NaOH is calculated by adding 17g per 1L of water;

[0066] ②Extraction of green walnut exocarp pigment

[0067] Extractant: NaOH aqueous solution with mass-volume concentration of 16g / L

[0068] Mix green walnut exocarp powder (particle size 40 mesh) with NaOH aqueous solution with a mass-volume concentration of 16g / L at a ma...

Embodiment 3

[0075] The dyeing of embodiment 3 modified viscose fabrics

[0076] ①Modification of viscose fabric

[0077] The modifier is: 3-chloro-2-hydroxytrimethylammonium sulfate

[0078] Mix viscose fabric and water at a mass ratio of 1:30, add modifier and NaOH, heat up to 65°C at room temperature at a rate of 2°C / min, react at 65°C for 55min and keep stirring; after modification Wash the viscose fabric with hot water: wash at 45°C for 10 minutes→wash in cold water→acid wash: wash with HAC solution with a mass-volume concentration of 2g / L for 2min→wash until neutral→dry; among them, the modifier is added per 1L of water 52g calculation; NaOH is calculated by adding 16g per 1L of water;

[0079] ②Extraction of green walnut exocarp pigment

[0080] Extractant: NaOH aqueous solution with mass-volume concentration of 16g / L

[0081] Mix green walnut exocarp powder (particle size 40 mesh) with NaOH aqueous solution with a mass-volume concentration of 16g / L at a mass ratio of 1:15, extr...

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Abstract

A method for dyeing modified cellulose fabrics by green walnut epicarp pigment includes following steps of dyeing green walnut epicarp pigment dyeing extract liquor on the modified cellulose fabrics; and soaping, washing and drying after dyeing, washing and drying the modified cellulose fabrics by a direct dyeing process. The method is simple and easy in process, does not need mordant dyeing fixation and the like, is high in dyeing efficiency, fine in dyeing quality, free of toxin and pollution, low in cost and remarkable in economic and environment benefits, and has high friction resisting color fastness and washing resisting color fastness which are higher than four levels.

Description

technical field [0001] The invention relates to a method for dyeing modified cellulose fiber fabrics with green walnut exocarp pigment, in particular to the use of natural plant dyes in cellulose fiber fabrics, and belongs to the technical field of textile dyeing and finishing. Background technique [0002] Today, when the trend of green environmental protection is rising all over the world, textiles and clothing tend to be natural, and people yearn to return to nature. Affected by the clothing trend of "returning to basics" and "returning to nature", the utilization and industrialized production of natural dyes have become hot spots again. Natural dyes come from nature, are harmless to human health, have good compatibility with the environment, do not pollute the environment, and the dye solution is biodegradable. Dyeing with natural dyes: cellulose fiber fabrics have natural, elegant, unique and unique colors, which are not easy to reproduce, and meet people's pursuit of ...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P3/60C09B61/00D06M13/463D06M11/38D06L1/16D06M101/06D06M101/08
Inventor 吕丽华王晓韦晓川
Owner DALIAN POLYTECHNIC UNIVERSITY
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