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Modification method of orange-peel pigment and application thereof in cotton-fabric dyeing

A technology of orange peel and pigment, which is applied in the modification of orange peel pigment and its application in cotton fabric dyeing. It can solve the problems of low fiber fabric binding, unstable pigment, easy to fade, etc., and achieve color fixation The effect is good, the economic value is improved, and the combination fastness is increased

Inactive Publication Date: 2019-04-09
梅丽玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, generally pure natural and unmodified pigments are not very stable, and the degree of combination with fiber fabrics is not high, and they are easy to fade

Method used

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  • Modification method of orange-peel pigment and application thereof in cotton-fabric dyeing

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Experimental program
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Effect test

Embodiment 1

[0026] The modification method of orange peel pigment, composition is calculated by weight, comprises the following steps:

[0027] (1) Extraction of orange peel pigment: clean 10 parts of orange peel, dry and pulverize, add 200 parts of distilled water, boil in boiling water for 60 minutes, filter, and dry to obtain orange peel pigment;

[0028] (2) Mix 1 part of orange peel pigment, 1 part of mixed emulsifier and 20 parts of deionized water, place in a constant temperature water bath at 90°C, and stir for 30 minutes at a speed of 1000 rpm;

[0029] (3) transfer to colloid mill and process for 10min;

[0030] (4) Take it out, dry it, add 6 parts of 1-chlorododecane and stir evenly, add 0.5 part of anhydrous aluminum chloride, and oscillate in an air bath for 30 minutes;

[0031] (5) Cool to room temperature, add ice water and concentrated hydrochloric acid until completely dissolved, transfer to a separatory funnel and extract with ether twice, combine the layer solution whe...

Embodiment 2

[0036] The modification method of orange peel pigment, composition is calculated by weight, comprises the following steps:

[0037] (1) Extraction of orange peel pigment: clean 12 parts of orange peel, dry and pulverize, add 220 parts of distilled water, boil in boiling water for 65 minutes, filter, and dry to obtain orange peel pigment;

[0038] (2) Mix 1.2 parts of orange peel pigment, 1.3 parts of mixed emulsifier and 25 parts of deionized water, place in a constant temperature water bath at 90°C, and stir for 35 minutes at a speed of 1200 rpm;

[0039] (3) transfer to colloid mill and process for 15min;

[0040] (4) Take it out, dry it, add 7 parts of 1-chlorododecane and stir evenly, add 0.7 part of anhydrous aluminum chloride, and shake in an air bath for 35 minutes;

[0041] (5) Cool to room temperature, add ice water and concentrated hydrochloric acid until completely dissolved, transfer to a separatory funnel and extract with ether twice, combine the layer solution w...

Embodiment 3

[0046] The modification method of orange peel pigment, composition is calculated by weight, comprises the following steps:

[0047] (1) Extraction of orange peel pigment: clean 15 parts of orange peel, dry and pulverize, add 250 parts of distilled water, boil for 70 minutes with boiling water, filter, and dry to obtain orange peel pigment;

[0048] (2) Mix 1.5 parts of orange peel pigment, 1.5 parts of mixed emulsifier and 30 parts of deionized water, place in a constant temperature water bath at 90°C, and stir for 35 minutes at a speed of 1500 rpm;

[0049] (3) transfer to colloid mill and process for 15min;

[0050] (4) Take it out, dry it, add 8 parts of 1-chlorododecane and stir evenly, add 0.75 part of anhydrous aluminum chloride, and shake in an air bath for 40 minutes;

[0051] (5) Cool to room temperature, add ice water and concentrated hydrochloric acid until completely dissolved, transfer to a separatory funnel and extract with ether for 3 times, combine the layer s...

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Abstract

The invention provides a modification method of orange-peel pigment. The modification method comprises the following steps of: extracting the orange-peel pigment, taking and mixing the orange-peel pigment, a mixed emulsifier and deionized water, and carrying out constant-temperature water bathing and stirring; transferring into a colloid mill for treatment; drying, adding 1-dodecyl chloride, uniformly stirring, adding anhydrous aluminium chloride, and carrying out air-bathing vibration; cooling, adding ice water and concentrated hydrochloric acid, using diethyl ether for extraction, separatingand purifying to obtain primarily-modified orange-peel pigment; under nitrogen protection, mixing chitosan and anhydrous acetone, adding pyridine, the primarily-modified orange-peel pigment and 4-dimethylaminopyridine, heating and refluxing; after cooling and standing, carrying out rotary evaporation, regulating pH, and filtering to take filtered residues; adding distilled water, stirring, filtering to take filtrate and drying to obtain the orange-peel pigment. The modification method provided by the invention has the beneficial effects that after the cotton fabrics are dyed by the orange-peel pigment, the apparent color depth value K / S is higher, the color fixing effect is good, simultaneously both the color fastness levels of dry friction and wet friction are high, the color is basically not changed and stained after washing, the washing resistance is achieved and the color fastness is excellent.

Description

technical field [0001] The invention relates to a modification method of orange peel pigment and its application in cotton fabric dyeing. Background technique [0002] Natural dyes are excellent ecological dyes, mainly from plants, which are harmless to the human body, and some also have functional functions such as anti-oxidation, antibacterial, and health care. The use of natural dyes is of great significance for breaking through green trade barriers and developing green textiles. In the past many years, many research institutions in the world have conducted research on natural dyes, using vegetable dyes to dye fiber fabrics. However, generally pure natural and unmodified pigments are not very stable, and the degree of combination with fiber fabrics is not high, and they are easy to fade. Therefore, it is necessary to modify it, improve its stability, and the dyeing performance of fabrics. Contents of the invention [0003] Technical problem to be solved: [0004] A ...

Claims

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Application Information

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IPC IPC(8): C09B61/00C09B67/10D06P1/34D06P3/60
CPCC09B61/00C09B67/0014D06P1/34D06P3/60
Inventor 梅丽玲
Owner 梅丽玲
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