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Preparation and application of wool dye prepared by walnut plant

A technology for vegetable dyes and walnuts, applied in the field of wool dyeing, can solve the problems of inability to fully guarantee the safety of dyes, unsuitable for large-scale production, cumbersome production processes, etc., and achieve simple and effective dye extraction and dyeing processes, easy artificial cultivation, and plant resources. rich effects

Inactive Publication Date: 2011-08-17
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in this process, the above technologies use organic solvents, adsorption or microwave extraction in the process of pigment extraction. The operation is more complicated and consumes a lot of energy, resulting in high production costs and cumbersome production processes, which are not suitable for large-scale industrialization. Production
And the extensive use of organic solvent etc., not only can't fully guarantee the safety of dyestuff, but also can cause the pollution of environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Collect the walnut plants, wash them, dry them, and pass them through a 10-mesh sieve after they are crushed. Take 200g of plant materials and add 25% ethanol solution, wherein the weight ratio of the walnut plant materials to the solvent is 1:10. Mix evenly under the condition of ℃, extract the natural dye for 12 hours, then filter to obtain the dye solution, concentrate the extracted dye stock solution under reduced pressure at 40 ℃, and obtain the walnut powder concentrate, that is, the walnut plant dye.

Embodiment 2

[0022] Collect the walnut plants, wash them, dry them, and pass them through a 50-mesh sieve. Weigh 200g of plant materials and add 0.5% methanol solution, wherein the weight ratio of the walnut plant materials to the solvent is 1:100. Mix evenly under the condition of ℃, heat and extract the natural dye for 5 hours, then filter to obtain the dye solution, and concentrate the extracted dye stock solution under reduced pressure at 40 ℃ to obtain the walnut powder concentrate, that is, the walnut plant dye.

Embodiment 3

[0024] Collect the walnut plants, wash them, dry them, and pass them through a 100-mesh sieve after they are crushed. Weigh 200 g of plant materials and add 95% ethanol solution, wherein the weight ratio of the walnut plant materials to the solvent is 1:150. Mix evenly under the condition of ℃, heat and extract the natural dye for 1 hour, then filter to obtain the dye solution, and concentrate the extracted dye stock solution under reduced pressure at 40℃ to obtain the walnut powder concentrate, that is, the walnut plant dye.

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PUM

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Abstract

The invention relates to preparation and application of a wood dye prepared by a walnut plant in the technical field of wood dyeing. Powder of the walnut plant is extracted at a temperature of 10 to 150 DEG C and is concentrated by vacuum water bath to obtain walnut powder concentrate, i.e. the walnut plant dye. In the invention, the natural and nontoxic walnut plant is used for wood dyeing so as to provide technical basis for reducing the usage of a synthetic dye and developing a natural dye and also provide basis for really realizing large-scale industrial production and high-efficiency recycling of agriculture resources.

Description

technical field [0001] The invention relates to a dyeing agent in the technical field of wool dyeing and a preparation method, in particular to the preparation and application of using walnut plants as wool dyes. Background technique [0002] Walnut (Juglans regia) is a deciduous tree belonging to Juglans family Juglans with a cultivation history of more than 2,000 years. Its wood is tough and can be used as utensils, nuts can be eaten, oil can be squeezed, and it can also be used as medicine. Walnuts are originally produced in southeastern Europe, West Asia and other regions, and are now widely cultivated in North America, North Africa, East Asia and other regions, and are distributed in most parts of my country. Modern medical research believes that the phospholipids in walnuts have a good health care effect on the cranial nerves. Walnut oil contains unsaturated fatty acids, which have the effect of preventing and curing arteriosclerosis. Contain indispensable elements ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00D06P3/14D06P1/34
Inventor 代光辉陈义娟贾福丽陈佳李会王丹丹洪琪
Owner SHANGHAI JIAO TONG UNIV
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