Preparation method and usage of special tea dye for silk

A technology of dyes and tea, applied in dyeing, azo dyes, organic dyes, etc., can solve the problems of special dye teas not being launched on a large scale, slow progress in tea dyeing research, low market awareness, etc., to achieve simple and elegant colors , broad market prospects, and environmentally friendly effects

Inactive Publication Date: 2013-02-06
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, the market recognition of tea as a dye is not high, mainly because tea and textile interdisciplinary, penetration is not deep enough, and research on tea dyeing is progressing slowly, resulting in the failure of large-scale marketing of tea for dyestuffs

Method used

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  • Preparation method and usage of special tea dye for silk
  • Preparation method and usage of special tea dye for silk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: Fix the color of fresh tea leaves at 200° C. for 2.0 minutes, knead and cut them, and directly add ethanol to extract the tea dye. During the extraction, the ratio of solid to liquid (weight ratio), extraction temperature and extraction time were controlled at 1:20, 50°C and 30 min, respectively, and filtered after the extraction was completed, so that the content of tea polyphenols in the dyeing liquor was above 0.3%; The dyeing solution was prepared at a bath ratio of 1:20, and the silk fabric was dyed at 50°C for 1 h, then dyed in 0.6% aluminum salt mordant solution for 1 h, finally washed with pure water, and dried into a yellow-green silk fabric.

Embodiment 2

[0016] Example 2: Fix the color of fresh tea leaves at 240°C for 1.0 min, knead and cut them, and directly add ethanol to extract the tea dye. The ratio of solid to liquid during extraction is the weight ratio, and the extraction temperature and extraction time are controlled at 1:15, 60°C and 30 min respectively. The liquor ratio is 1:20 to prepare the dye solution, and the silk fabric is dyed at 50°C for 1 h, then dyed in 0.6% aluminum salt mordant solution for 1 h, finally washed with pure water, and dried to yellow-green silk fabric.

Embodiment 3

[0017] Example 3: Fix the color of fresh tea leaves at 220° C. for 1.5 minutes, knead and cut them, and directly add sodium carbonate to extract the tea dye. The ratio of solid to liquid during extraction is the weight ratio, and the extraction temperature and extraction time are controlled at 1:20, 60°C and 35 min respectively. The dyeing solution was prepared at a ratio of 1:20, and the silk fabric was dyed at 60°C for 1 h, then dyed in 0.6% copper salt mordant solution for 1 h, finally washed with pure water, and dried to obtain a champagne-colored silk fabric.

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Abstract

The invention provides a preparation method and usage of special tea dye for silk. The method comprises the steps of making tea for dye through instant fixation, cell disruption, low temperature storage or rapid drying with fresh tea leaves, taking alkalescent salt or alcohol as a solvent, extracting silk tea dye with the tea polyphenol content greater than 0.3% from the tea for the dye, selecting appropriate dyeing conditions, and dyeing the silk with the dye. According to the method, the tea shape can be faded so that the cost can be lowered; the tea dye can be combined with a mordanting assistant on a fibre for color fixation; the color fastness can be improved; summer and autumn tea resources can be utilized to research and develop tea dye silk fabrics which are environment-friendly and have simple, unsophisticated and quietly elegant colors as well as antibacterial and uvioresistant functions; the market prospect is wide; great economic benefits can be produced; and great social benefits can also be achieved.

Description

technical field [0001] The invention belongs to the technical field of tea deep processing, and relates to a preparation method of special tea dye for silk. Background technique [0002] China is the birthplace of tea and has a long history of tea culture. In recent years, the planting scale of tea has continued to expand, and the output of tea has increased accordingly. According to statistics, in 2011, my country's tea output and output value ranked first in the world. Tea not only has high drinking value, but also has certain health care functions. Therefore, in addition to tea for brewing, new tea products have also been developed, such as instant tea beverages, tea cakes and other tea-containing foods favored by consumers, tea cosmetics for beauty and beauty, and tea loved by health and environmental protection people. Textiles etc. The successful research and development of these tea terminal products has extended the tea industry chain and provided guarantee for t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B65/00C09B67/10D06P1/36D06P1/34D06P3/04
Inventor 郭丽林智郑得林吕海鹏谭俊峰
Owner TEA RES INST CHINESE ACAD OF AGRI SCI
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