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Sophora japonica plant dye extraction method and dyeing method through dye

A plant dye and dyeing method technology, applied in the field of dye extraction, can solve the problems of complex process and low efficiency, and achieve the effects of simplifying the operation process, improving extraction efficiency, and high color fastness

Inactive Publication Date: 2015-11-25
JIAXING XINFANG TEXTILE PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This extraction method needs repeated extractions to improve the extraction efficiency, and the process is more complicated, the total extraction rate can only reach about 13%, and the efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The extraction method of Sophora japonica yellow pigment plant dye in the present embodiment is as follows:

[0026] Pre-treatment: Select the dried Sophora japonica as needed, then chop the dried Sophora japonica into powder, then soak the dried Sophora japonica powder in water at room temperature to swell, and then take out the swollen dried Sophora japonica powder and ice powder Mixing, according to the ratio of material to liquid is 1:2~3, that is, the mass ratio of Sophora japonica dry powder to ice powder is 1:2, and then control the stirring speed at 1000 rpm to 1200 rpm for high-speed stirring For pretreatment, control the temperature of the system at -5°C to 0°C during the stirring process, and proceed to the next step after complete stirring;

[0027] Leaching: After the pretreatment in the above step A, add water directly, the amount of water added is to make the mass ratio of Sophora japonica dry powder to water 1:13, and then continue to heat up to 95°C for...

Embodiment 2

[0030] The extraction method of Sophora japonica yellow pigment plant dye in the present embodiment is as follows:

[0031] Pre-treatment: Select the dried Sophora japonica as needed, then chop the dried Sophora japonica into powder, then soak the dried Sophora japonica powder in water at room temperature to swell, and then take out the swollen dried Sophora japonica powder and ice powder Mixing, according to the material-liquid ratio of 1:3, that is, the mass ratio of Sophora japonica dry powder to ice powder is 1:3, and then control the stirring speed at 1000 rpm to 1200 rpm for high-speed stirring for pretreatment 30min, during the stirring process, control the temperature of the system at -5°C to 0°C, then add octylphenyl polyoxyethylene ether, the amount of octylphenyl polyoxyethylene ether is 1% of the mass of Sophora japonica dry powder 0.3%, then raise the temperature to 40°C and stir for 30 minutes. After the stirring is completed, use it for the next step;

[0032]L...

Embodiment 3

[0035] The extraction method of Sophora japonica yellow pigment plant dye in the present embodiment is as follows:

[0036] Pre-treatment: Select the dried Sophora japonica as needed, then chop the dried Sophora japonica into powder, then soak the dried Sophora japonica powder in water at room temperature to swell, and then take out the swollen dried Sophora japonica powder and ice powder Mixing, according to the material-liquid ratio of 1:2.5, that is, the mass ratio of Sophora japonica dry powder to ice powder is 1:2.5, and then control the stirring speed at 1100 rpm for high-speed stirring for 30 minutes. During the stirring process Control the temperature of the system at -5°C to 0°C, then add octylphenyl polyoxyethylene ether, the amount of octylphenyl polyoxyethylene ether is 0.8% of the mass of Sophora japonica dry powder, and then add Stir for 30 minutes under the condition that the temperature rises to 45°C, and use it for the next step after the stirring is completed...

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Abstract

The invention relates to a sophora japonica plant dye extraction method and a dyeing method through dye, belongs to technical field of dye extraction, aims to solve the problems that the conventional extraction efficiency is low and the processing is complex, and provides the sophora japonica plant dye extraction method the dyeing method through the dye. The extraction method comprises the following steps: mixing dry sophora flower powder with ice powder, and stirring at a high speed for pre-treatment; directly adding water for extraction, filtering and collecting extracting liquid; removing waste residues; concentrating collected extracting liquid under a vacuum condition till yellow solid is separated out, cooling, centrifuging and drying so as to obtain corresponding dye. The dyeing method comprises the following steps: soaking a fabric into an alums aqueous solution for pretreatment; soaking the pre-treated fabric into dye liquor for dyeing; adding a mixed aqueous solution of magnesium sulfate and potassium acetate for color fixation, washing, drying and carrying out color setting so as to obtain the dyed fabric. The advantages of high extraction efficiency and high total extraction ratio are realized, and meanwhile, the effect of environment friendliness in the dyeing process is realized.

Description

technical field [0001] The invention relates to a method for extracting a Sophora japonica plant dye and its dyeing method, and belongs to the technical field of dye extraction. Background technique [0002] Synthetic dyes have the advantages of brilliant color, good color fastness and mass production, so they are widely used in the field of fabric dyeing. However, synthetic dyes cause a lot of environmental pollution due to factors such as complex structure, wide variety and low biodegradability. At the same time, it has the defects of being carcinogenic and prone to allergic reactions. As people pay more attention to environmental protection and health, more and more attention is paid to the application of natural pigments. The main reason is that natural pigments are favored by people because of their non-toxicity, good stability, and nutritional and pharmacological effects, and they have also become the new darling of the textile industry. [0003] Most of the natural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00D06P1/34D06P1/46D06P1/673D06P5/10
CPCC09B61/00D06P1/34D06P1/46D06P1/673D06P5/10
Inventor 刘欣强黄庆清曹颖戴桦根刘小芳
Owner JIAXING XINFANG TEXTILE PROD CO LTD
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