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Enzymatic method for dyeing cotton by using sargentgloryvine stem extract

A technology of extracting liquid and red vine, applied in the field of textile dyeing, to achieve the effect of obvious dyeing effect and simple dyeing

Inactive Publication Date: 2014-02-26
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of tyrosinase in cotton dyeing has not been reported yet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Step 1: Preparation of Red Vine Extract

[0021] Weigh 10 g of crushed dry red vine, measure 80 mL of water, put it into a distillation flask, heat it in an oil bath and extract it with boiling water under reflux for 6 hours, centrifuge the obtained solution at 25°C for 15-30 minutes, and the supernatant is Red vine extract, the red vine extract is concentrated to 200 g / L as mother liquor.

[0022] Step 2: Cotton Loose Fiber Dyeing

[0023] Take the red rattan extract mother liquor concentrated in step 1, prepare the red rattan extract with a concentration of 20 g / L as the dye solution, take 250 mL and place it in a conical flask, adjust the pH of the dye solution to 6.5 with phosphate buffer, The dyeing bath ratio is 25:1; add cotton loose fibers, and add tyrosinase with an active enzyme concentration of 1.5 U / mL (first dissolve solid tyrosinase in a phosphate buffer solution with pH 6.5 to obtain tyrosine Enzyme solution, the activity of tyrosinase is defined as: at...

Embodiment 2

[0026] The preparation method of the red rattan extract is the same as step 1 in Example 1.

[0027] Take the concentrated red rattan extract mother liquor, prepare the red rattan extract with a concentration of 40 g / L as the dyeing solution, take 250 mL and place it in an Erlenmeyer flask, adjust the pH of the dyeing solution to 6.5 with phosphate buffer, and press the dyeing bath The ratio is 25:1, add cotton yarn, add active tyrosinase 3 U / mL, treat at 25°C for 2 hours, and stir continuously during the dyeing process to obtain a cotton yarn dyed product.

[0028] After testing, the red-green index a* of the dyed cotton yarn provided in this example is 9.02, and the yellow-blue index b* is 11.02; the color is dark orange-red in medium depth.

Embodiment 3

[0030] The preparation method of the red rattan extract is the same as step 1 in Example 1.

[0031] Take the concentrated red rattan extract mother liquor, prepare the red rattan extract with a concentration of 100 g / L as the dyeing solution, put it in a 250 mL Erlenmeyer flask, adjust the pH of the dyeing solution to 6.5 with phosphate buffer, and the dyeing bath ratio is 25:1, add pure cotton poplin (40s×40s, warp density 110 strands / 10cm, weft density 90 strands / 10cm), add 2U / mL tyrosinase, treat at 25°C for 2h, and keep stirring during the dyeing process to obtain a Cotton dyed fabric.

[0032] After testing, the red-green index a* of the cotton dyed fabric provided in this embodiment is 8.68, and the yellow-blue index b* is 11.40; the color is dark orange-red in medium depth.

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Abstract

The invention discloses an enzymatic method for dyeing cotton by using sargentgloryvine stem extract, and belongs to the field of textile dyeing. The method comprises the following steps of: extracting the sargentgloryvine stem extract, and dyeing the cotton at the temperature of 25 DEG C and the pH of 6.5 in a bath ratio of 10:1-30:1 by using 20 to 100g / L sargentgloryvine stem extract and 0.5 to 5U / mL tyrosinase as dye liquor to obtain enzymatically dyed cotton. The enzymatic method for dyeing the cotton by using the sargentgloryvine stem extract is simple and has the advantages of low energy consumption and environment friendliness, and the cotton can be dyed at room temperature.

Description

technical field [0001] The invention relates to the dyeing application of a plant extract on cotton, in particular to the dyeing application of a red rattan extract as a dye on cotton in the presence of tyrosinase, and belongs to the field of textile dyeing. Background technique [0002] As a natural fiber, cotton fiber is widely used in the textile industry. Cotton fabrics can be dyed with reactive dyes, direct dyes, vat dyes and sulfur dyes, most of which are dyed with reactive dyes. The dyeing process of reactive dyes includes steps such as dyeing, washing, soaping, washing, color fixing, and washing. The process produces high energy consumption, large water consumption, high salt consumption, and large pollution. With the strengthening of people's awareness of environmental protection and the increasing scarcity of water resources and energy, it has become more and more important to realize energy saving, environmental protection, cleaning and processing of cotton fiber...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/34D06P1/44D06P3/60C09B61/00
Inventor 孙莎莎唐人成
Owner SUZHOU UNIV
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