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Method for dyeing acrylic fiber fabrics by utilizing bacterium dyestuff prodigiosin

A technology of prodigiosin and a dyeing method, which is applied in the field of dyeing acrylic fabrics by using bacterial dye prodigiosin, can solve the problems of less research and development of dyes, and achieves the advantages of high dyeing rate, simple dyeing method and good antibacterial properties. Effect

Inactive Publication Date: 2013-06-26
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, there are few literature reports on the development and research of this dye

Method used

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  • Method for dyeing acrylic fiber fabrics by utilizing bacterium dyestuff prodigiosin
  • Method for dyeing acrylic fiber fabrics by utilizing bacterium dyestuff prodigiosin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of prodigiosin dye

[0032] First, the purchased strains (Serratia marcescens, purchased from the China Medical Bacteria Preservation Management Center) were diluted, and then the diluted bacteria were spread on the plate medium (yeast powder 5g / L, peptone 10g / L , glucose 10g / L, agar powder 20g / L) and cultivated in a constant temperature incubator, pick the strain with red pigment and darker color and spread it on the plate medium, and store the strain at 4°C . The screened bacterial strains were cultured in the seed medium (yeast powder 4.5g / L, peptone 12g / L, NaCl 2.5g / L, KCl 3g / L, glucose 2g / L) for 15h, then inserted into the fermentation medium and cultivated for 30h .

[0033] The supernatant and bacteria were separated separately. The supernatant is directly extracted from the aqueous solution with ethyl acetate, and the flocs are first centrifuged and then concentrated with a rotary evaporator and then extracted in acidic methanol. The method of met...

Embodiment 2

[0035] The acrylic fabric samples will be dyed according to the following processes for testing:

[0036] Process 1: The amount of prodigiosin dye is 5% (mass fraction of dyestuff to acrylic fiber fabric), the mass ratio of ethyl acetate to water is 0.5:6, the bath ratio is 1:10, the pH value is 4.0, dyeing at 85°C 60min.

[0037] Process 2: Prodigiosin dyestuff consumption 2% (mass fraction of dyestuff to acrylic fiber fabric), the mass ratio of N, N-dimethylformamide and water is 0.3: 10, bath ratio 1: 5, pH value is 6.0 , Dyeing at 90°C for 90min.

[0038] According to GB / T 3920-1997 "Textile Color Fastness Test Color Fastness to Rubbing", the rubbing fastness is measured according to the AATCC standard for washing resistance test.

[0039] Finally, the dry rubbing fastness of the fabric dyed by process 1 is grade 4, and the wet rubbing fastness is 3-4; the dry rubbing fastness of the fabric dyed by process 2 is grade 4, and the wet rubbing fastness is 3-4 ; The soaping ...

Embodiment 3

[0042]See Table 1 for the effects of different solvents on the dyeing rate of prodigiosin on acrylic fabrics under the same conditions.

[0043] The reaction conditions of the experiment described in table 1, namely the mass ratio of methyl alcohol and water is 1: 3, and the ratio of ethyl acetate and N, N-dimethylformamide and water is all 0.5: 10, and dyeing bath ratio is average The ratio is 1:10, the pH is about 5.0, and they are dyed at 90°C for 60 minutes.

[0044] Table 1 The dye uptake of prodigiosin by different solvents to acrylic fabrics

[0045]

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Abstract

The invention relates to a method for dyeing acrylic fiber fabrics by utilizing bacterium dyestuff prodigiosin, which includes the steps of (1) dissolving the prodigiosin by using ethyl acetate or N, N-dimethylformamide and then adding dissolved prodigiosin into water to produce a dyeing solution, and (2) dyeing the acrylic fiber fabrics by utilizing the dyeing solution, wherein the dosage of theprodigiosin is 0.1-6% of that of acrylic fiber fabrics by mass, dyeing bath ratio is 1:5-20, potential of hydrogen (pH) of an adjusting dye solution is 4.0-6.0, dyeing temperature is 80-90 DEG C, anddyeing time is 30-90 minutes. Compared with a dyeding method of a mixed solution of carbinol or ethanol and the water, dye-uptake rate of the dyestuff is high, level-dyeing property is good, and the dyeing method is simple, easy to operate and low in device requirements. The dyed acrylic fiber fabrics produced by means the method have good washing fastness and abrasion-resisting fastness, bright color, good antibiotic property and wide application prospects, and antibacterial rate is more than 90%.

Description

technical field [0001] The invention belongs to the field of dyeing acrylic fiber fabrics, in particular to a method for dyeing acrylic fiber fabrics by using bacterial dye prodigiosin. Background technique [0002] In recent years, due to the influence of environmental problems and energy problems, people tend to pursue sustainable, environmentally friendly and beneficial methods to prepare dyes. The development of natural dyes is the general trend of the development of applied dyes in the world. Natural dyes refer to dyes obtained from plants, animals or mineral resources with little or no chemical processing. Many natural dyes are safe, reliable, natural in color, and close to natural substances. And other advantages, natural, multi-functional is the development trend of dyes. Therefore, screening microorganisms that can produce natural dyes from natural resources, and then developing new varieties of natural dyes, especially functional natural dyes, has broad prospects....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/34D06P3/70
Inventor 赵涛钟绵国
Owner DONGHUA UNIV
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