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A cold dyeing process of organic cotton based on pomegranate shell extract

A pomegranate shell and extract technology, applied in the field of cold dyeing technology, can solve the problems of low dyeing fastness, cumbersome cold dyeing process, and easy degradation of color, and achieve excellent saliva fastness and stable cold dyeing effect

Active Publication Date: 2019-06-28
HEBEI YONGLIANG TEXTILE
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  • Description
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AI Technical Summary

Problems solved by technology

However, in the field of cold dyeing, if only natural plant dyes are used, there are problems of low dyeing fastness and easy degradation of color. Therefore, in the current cold dyeing process based on natural dyes, the fabric needs to be modified by cationic or heavy metal mordants before dyeing. processing, which undoubtedly makes the cold dyeing process cumbersome

Method used

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  • A cold dyeing process of organic cotton based on pomegranate shell extract

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Embodiment 1

[0020] Preparation method of sweet tea leaf extract:

[0021] Take Guangxi sweet tea leaves as raw material, add water 12 times the volume of the raw material to heat and reflux to extract for 120 minutes after crushing, filter, concentrate the filtrate to 1 / 3 of the original volume, add excess ethanol to precipitate insoluble matter, filter again, and pass the filtrate through the pretreated The D101 resin column was washed with water until the effluent was colorless, and then eluted with an ethanol solution with a concentration of 60% by volume, and the eluate was collected, concentrated and dried to obtain a pure white sweet tea leaf extract;

[0022] (1) Preparation of pomegranate shell extract

[0023] Grind the dried fresh pomegranate shells with a pulverizer, add the obtained pomegranate shell powder into water at a ratio of 6g / 100mL, extract at 80°C and a pH value of 8 for 65 minutes, filter, and spray dry the filtrate Get pomegranate shell extract;

[0024] (2) The ...

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Abstract

The present invention belongs to the technical field of plant dyeing of cotton fabrics, and particularly relates to an organic cotton cold dyeing process based on a pomegranate shell extract. According to the present invention, the modifier extracted from plant is added and the pomegranate shell extract dye is supplemented, such that the firm and stable cold dyeing effect on the cotton fabric is achieved at the room temperature, the process is natural and harmless, and the dyed fabric has excellent saliva fastness.

Description

technical field [0001] The invention belongs to the technical field of plant dyeing of cotton fabrics, and in particular relates to a cold dyeing process of organic cotton based on pomegranate shell extract. Background technique [0002] The cold dyeing process is to put the fabric into the prepared dye solution, soak it at room temperature for a period of time, rinse it with clean water and dry it after dyeing. The temperature of cold dyeing is lower, the discharge of dye is less, the pollution is less, and the amount of dye can be saved at the same time. The dyed fabric has an old feeling, which is a new direction for the development of energy-saving dyeing technology. [0003] Today, when advocating returning to nature and protecting the environment, natural plant dyes have become the new favorite of the dyeing industry with their natural hues, soft tones, soft and non-irritating to the skin, and their own functional health benefits, such as the popular fruit dyes. , gra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/34D06P1/44D06P3/60
CPCD06P1/34D06P1/44D06P3/60
Inventor 田海涛纪俊玲苏国平
Owner HEBEI YONGLIANG TEXTILE
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