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Rhododendron pulchrum leaf dye, and extraction method and application thereof

A dye and cuckoo technology, applied in dyeing methods, azo dyes, organic dyes, etc., can solve the problems of non-regeneration, shortage of resources, and inconsistent with sustainable development, and achieve the effect of convenient extraction and good dyeing effect.

Active Publication Date: 2012-06-20
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the dyes commonly used in dyeing silk fabrics are synthetic dyes, because their sources are mainly petroleum and coal. In the long run, resources are becoming increasingly scarce and cannot be regenerated, which does not meet the requirements of sustainable development.

Method used

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  • Rhododendron pulchrum leaf dye, and extraction method and application thereof
  • Rhododendron pulchrum leaf dye, and extraction method and application thereof
  • Rhododendron pulchrum leaf dye, and extraction method and application thereof

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Embodiment Construction

[0012] A kind of extracting method of rhododendron leaf dye, adopting 0.2mol / L sodium hydroxide solution as extractant, solid-liquid ratio is 1: 40 (gram: milliliter), extraction temperature is 100 ℃, and extraction time is 40 minutes, obtains product.

[0013] Make a dye solution with a concentration of 5g / L for the hair cuckoo leaf dye, and adjust the pH value of the dye solution to 4-5; put the wet silk into the dye solution, dyeing temperature is 90°C, and dyeing time is 60 minutes. The liquor ratio was 50:1 (ml:g).

[0014] 1 Test part

[0015] 1.1 Test materials, drugs and instruments

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Abstract

The invention discloses rhododendron pulchrum leaf dye, and an extraction method and application thereof. The dye is extracted from rhododendron pulchrum leaves. A preparation method of the dye comprises the following steps of: adopting 0.2 mol / L of a sodium hydroxide solution as an extractant, wherein the ratio of a material to the solution is 1:40, the extraction temperature is 100 DEG C, and the extraction time is 40 min; and obtaining the dye. The dye disclosed by the invention is convenient to extract; more ferrous components can be extracted from plants by adopting an alkaline solution;and the prepared dye has a good dyeing effect on pure silk.

Description

technical field [0001] The invention relates to a dye and its extraction method and application. Background technique [0002] At present, the dyes commonly used in dyeing silk fabrics are synthetic dyes, because their sources are mainly petroleum and coal. In the long run, resources are becoming increasingly scarce and cannot be regenerated, which does not meet the requirements of sustainable development. Natural dyes refer to dyes obtained from plants, animals or mineral resources without artificial synthesis and little or no chemical processing. Among them, plant dyes have the longest application history and the widest application range. Natural dyes have good compatibility with the ecological environment and are biodegradable. The raw materials for producing dyes can be regenerated, and there is no problem of resource depletion. Dyeing with natural dyes, the color of the dyed product is natural, and can greatly reduce the toxicity of dyeing wastewater, which is beneficia...

Claims

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Application Information

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IPC IPC(8): C09B61/00D06P1/34D06P3/04
Inventor 陈美云袁德宏张玉萍张瑞萍王春梅缪勤华
Owner NANTONG UNIVERSITY