Dyeing method of water insoluble natural pigment on silk fabric

A water-insoluble, natural pigment technology, applied in the field of textile dyeing and finishing, can solve problems such as inability to dye silk fabrics, and achieve the effect of high fastness and uniform dyeing of fibers

Active Publication Date: 2013-01-30
XINYUAN COCOON SILK GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the limitation that water-insoluble natural pigments...

Method used

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  • Dyeing method of water insoluble natural pigment on silk fabric
  • Dyeing method of water insoluble natural pigment on silk fabric

Examples

Experimental program
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Effect test

Embodiment 1

[0012] The method described in this embodiment is suitable for dyeing silk fabrics with oil-soluble curcumin.

[0013] Weigh 0.5g of oil-soluble curcumin and dissolve it in 10ml of benzyl alcohol in a 250ml beaker. After it is completely dissolved, add 10g of fatty alcohol polyoxyethylene ether AEO9 and stir. After stirring evenly, the fixed stirring speed is 3000r / min, gradually add 150mL of deionized water within 30min under stirring conditions, continue to stir and stir for 60min, to obtain a curcumin microemulsion, add deionized water to make the volume up to 200mL.

[0014] The fatty alcohol polyoxyethylene ether used is AEO9, which is an existing conventional industrial product.

Embodiment 2

[0016] The method described in this embodiment is suitable for dyeing silk fabrics with emodin.

[0017] Weigh 0.5g of emodin and dissolve it in 8ml of phenethyl alcohol in a 250ml beaker. After it is completely dissolved, add 5g of fatty alcohol polyoxyethylene ether AEO9 and 5g of AEO7 for stirring. After stirring, the constant stirring speed is 2500r / min, gradually add 150mL of deionized water within 30min under stirring conditions, continue to stir and stir for 70min to obtain a microemulsion of emodin, add deionized water to make the volume to 200mL.

[0018] The fatty alcohol polyoxyethylene ether used adopts AEO9 and AEO7, and both AEO9 and AEO7 are existing conventional industrial products.

[0019] The dyeing method of the pigment microemulsion is to place the water-insoluble pigment microemulsion obtained in the above examples in an oscillating water bath, add 10 g of the silk fabric that has undergone pre-degumming treatment, and perform dyeing at elevated temperature unde...

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Abstract

The invention discloses a dyeing method of water insoluble natural pigment on silk fabric. The water insoluble natural pigment is one of oil soluble curcumin, emodin, chrysophanol and oil soluble paprika oleoresin. The method comprises the following steps: step 1: dissolving the water insoluble pigment in an organic solvent to obtain a pigment solution; step 2: adding an emulsifier in the pigment solution to obtain a mixed solution; step 3: stirring the solution while adding deionized water into the mixed solution; after the addition, continuing to stir to obtain an oil-in-water pigment microemulsion liquid; and step 4: dyeing the silk fabric in the pigment microemulsion liquid. The invention overcomes the boundedness that water insoluble natural pigment is unable to dye the silk fabric in water, so as to realize uniform dyed fiber of silk fabric by water insoluble natural pigment, and high fastness.

Description

Technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, and particularly relates to a method for dyeing real silk fabrics with water-insoluble natural pigments. Background technique [0002] Natural pigments are colored substances (pigments or dyes) extracted from animals or plants. They are extracted from the roots, stems, leaves, flowers, fruits of various plants, and the dried bodies of certain insects and shellfish. After any chemical treatment. Natural pigments have good compatibility with the ecological environment, are biodegradable, and have low toxicity. The raw materials used to produce these pigments can be regenerated. As some synthetic dyes are banned due to their toxicity, carcinogenicity and pollution problems, people's interest in the use of natural pigments for textile dyeing has been revived worldwide. [0003] The dyestuffs used in the dyeing of natural fiber textiles such as silk are all water-soluble dyes, which ar...

Claims

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Application Information

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Owner XINYUAN COCOON SILK GROUP
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