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Preparing method and application of gnetum montanum natural dye

A technology of natural dyes and vines, which is applied in the preparation of vines natural dyes and dyeing agents, can solve the problems that have not been reported before, and achieve the effects of good ecological environment compatibility, soft color and broad market prospects

Inactive Publication Date: 2019-07-05
浙江恒生印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the research on Maima Teng is only limited to traditional Chinese medicine, and there is no report on the preparation method and application process of Maima Teng natural dyes.

Method used

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  • Preparing method and application of gnetum montanum natural dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Dry the vines in the sun, cut them into small pieces with scissors, weigh 1 kg of vines, add them to 10 kg of sodium hydroxide aqueous solution, and extract at 100°C for 60 minutes to obtain an extract. Wherein, the sodium hydroxide aqueous solution concentration is 10g / L. Then, the extract is filtered and vacuum-concentrated to 5 kg, so as to obtain the concentrated natural dye of Mama Teng.

[0031] The ultraviolet absorption spectrogram of the Mama rattan natural dye that the present embodiment makes is as figure 1 As shown, the extract of vine vine is dark reddish brown, and its maximum absorption wavelength is at 542nm.

Embodiment 2

[0033] Dry the vines in the sun, cut them into small pieces with scissors, weigh 1 kg of vines, add them to 20 kg of sodium hydroxide aqueous solution, and extract at 80°C for 120 minutes to obtain an extract. Wherein, the sodium hydroxide aqueous solution concentration is 20g / L. Then, the extract is filtered and vacuum-concentrated to 5 kg, so as to obtain the concentrated natural dye of Mama Teng.

Embodiment 3

[0035] Dried the vines in the sun, cut them into small pieces with scissors, weighed 1 kg of the vines, added them to 30 kg of sodium hydroxide aqueous solution, and leached at 90°C for 90 minutes to obtain the extract. Among them, the concentration of sodium hydroxide aqueous solution is 30g / L. Then, the extract is filtered by suction and vacuum concentrated to 5 kg to obtain the concentrated natural dye of Maima vine.

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Abstract

The invention relates to a coloring agent, in particular to a preparing method and application of a gnetum montanum natural dye, and belongs to the technical field of dye preparation. The method includes the steps of cutting dried gnetum montanum into small pieces, adding the small pieces to a sodium hydroxide water solution, conducting extraction for 60-120 minutes at 80-100 DEG C to obtain an extraction solution, filtering the extraction solution, and conducting vacuum concentrating to obtain the concentrated gnetum montanum natural dye. The gnetum montanum natural dye is applied as the coloring agent for cotton fabrics, silk fabrics or chinlon fabrics and is also suitable for other natural cellulose and regenerated cellulose fabrics such as ramie, flax, viscose, bamboo fiber and modal fabrics and other natural protein and regenerated protein fiber fabrics such as wool, cashmere, rabbit hair and soy protein fiber fabrics.

Description

technical field [0001] The invention relates to a dyeing agent, in particular to a preparation method and application of a natural dye made from vines, and belongs to the technical field of dye preparation. Background technique [0002] Natural dyes are obtained from plants, animals or mineral resources, are biodegradable, and are non-toxic and harmless to humans. Some natural plant dyes come from Chinese herbal medicines, and besides dyeing, they also have medicinal and health care functions. Therefore, natural dyes have broad application prospects in the fields of home textile products, high-grade silk products and decorations. [0003] There are only one genus in the whole world (namely, the genus Maima Fuji), and there are more than 30 kinds in total. The so-called medicinal hemp vines usually refer to the small leaves of hemp vines. Xiaoye buys hemp vines is one of the sources of buying hemp vines medicinal materials. The lobular vine is bitter in taste, slightly wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/54D06P1/34D06P3/60D06P3/24
CPCC09B61/00C09B67/0096D06P1/34D06P3/24D06P3/60
Inventor 许校康蒋月亚陈海峰余志成宋凯利王诗文
Owner 浙江恒生印染有限公司
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