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Micro-extraction dyeing method of plant dyes

A technology of vegetable dyes and dyeing methods, applied in dyeing methods, textiles and papermaking, etc., can solve the problems of dye waste, low affinity, low dyeing rate, etc., achieve high dye concentration gradient, high color yield, and save energy The effect of water

Inactive Publication Date: 2017-03-08
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although water has many advantages as a cheap dyeing medium, such as dissolving dyes and swelling fibers, etc., the affinity of plant dye molecules to traditional textiles is low, and the dyeing rate in aqueous solution is low. To increase the amount of coloring, but more dyes are needed, which is easy to cause waste of dyes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The detailed steps of the micro-extraction dyeing method of vegetable dyes are as follows:

[0024] (1) Dissolve 1 g of hematoxylin in 100 mL of ethanol, add 1 mL of Span-85, and obtain a transparent solution under ultrasound.

[0025] (2) Suction filtration of the above transparent solution under reduced pressure to obtain hematoxylin powder coated with Span-85.

[0026] (3) Add the prepared Span-85-coated hematoxylin powder into 200 mL of isooctane, and ultrasonically disperse to obtain a concentrated transparent dye solution.

[0027] (4) Dilute 0.1 mL of the transparent dye concentrated solution prepared in step (3) into 20 mL of isooctane to prepare a dye solution.

[0028] (5) The padded FeCl 3 (0.1M) solution of the fabric (residual rate of 100%) into the dyeing solution in step (4), heated to 40 ° C with vibration for 1 hour dyeing.

Embodiment 2

[0030] The detailed steps of the micro-extraction dyeing method of vegetable dyes are as follows:

[0031] (1) Dissolve 4 g of gardeniadin in 100 mL of ethanol, add 2 mL of Span-65, and obtain a transparent solution under ultrasound.

[0032] (2) Suction filtration of the above transparent solution under reduced pressure to obtain span-65-coated genipo powder.

[0033] (3) Add the prepared span-65-coated genipo powder into 200 mL of isooctane, and disperse it ultrasonically to obtain a concentrated transparent dye solution.

[0034] (4) Dilute 0.2 mL of the transparent dye concentrated solution prepared in step (3) into 20 mL of isooctane to prepare a dye solution.

[0035] (5) The padded CuCl 2 (0.2M) solution of the fabric (residual rate of 100%) into the dyeing solution in step (4), heated to 40 ° C with vibration for 1 h dyeing.

Embodiment 3

[0037] The detailed steps of the micro-extraction dyeing method of vegetable dyes are as follows:

[0038] (1) Dissolve 7 g of Galla tannin in 100 mL of ethanol, add 4 mL of Span-65, and obtain a transparent solution under ultrasound.

[0039] (2) Suction filtration of the above transparent solution under reduced pressure to obtain Galla tannin powder coated with Span-65.

[0040] (3) Add the galla tannin powder coated with Span-65 into 200 mL of isooctane, and disperse it ultrasonically to obtain a concentrated transparent dye solution.

[0041] (4) Dilute 0.4 mL of the concentrated transparent dye solution prepared in step (3) into 20 mL of isooctane to prepare a dye solution.

[0042] (5) AlCl 3 (0.4M) solution of the fabric (residual rate of 100%) into the dyeing solution step 4, heated to 40 ° C with vibration dyeing 1h.

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PUM

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Abstract

The invention provides a microextraction staining method for vegetable dyes. The microextraction staining method comprises the following steps: dissolving a vegetable dye extract into ethyl alcohol, adding into a non-ionic surface active agent, and performing ultrasonic treatment to obtain a transparent solution; performing pressure reduction suction filtration to obtain vegetable dye powder wrapped by the non-ionic surface active agent; adding the vegetable dye powder wrapped by the non-ionic surface active agent into isooctane, and performing ultrasonic dispersion to obtain transparent solution; diluting the prepared concentrated dye solution into the isooctane; feeding a fabric dipped into a rolling mordant solution into the staining solution, and performing oscillation heating staining. The staining technology is to solubilize the vegetable dye into an oil phase, and the use amount of water is small and only 2-5 percent of the common use amount of water, so that watver can be saved favorably; the water-soluble vegetable dye is extracted into a water phase on the surface of the fabric; as the water amount is small, the concentration of the dye is higher, the formed dye is high in dye concentration gradient, and the fabric is high in tinctorial yield.

Description

technical field [0001] The invention relates to a dyeing method, in particular to a micro-extraction dyeing method of vegetable dyes. Background technique [0002] Vegetable dyes used for textile dyeing are usually water-soluble, and the existing dyeing technology is to dissolve the dyes in aqueous solution, and then directly dye the textiles. Although water has many advantages as a cheap dyeing medium, such as dissolving dyes and swelling fibers, etc., the affinity of plant dye molecules to traditional textiles is low, and the dyeing rate in aqueous solution is low. To increase the amount of coloring, but more dyes are needed, which is easy to cause waste of dyes. Contents of the invention [0003] One of the objects of the present invention is to provide a micro-extraction dyeing method of vegetable dyes, which uses less water and can effectively improve the color yield of vegetable dyes on textiles. [0004] In order to achieve the above object, the present invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/34D06P1/651
Inventor 刘一萍卢明李兰倩刘祖兰赵振云刘想
Owner SOUTHWEST UNIV