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Method for dyeing acrylic fabric with bacterial dye prodigiosin

A technology of prodigiosin and dyeing method, which is applied in the field of dyeing acrylic fabrics with bacterial dye prodigiosin, can solve the problems of less research and development of dyes, achieve good antibacterial properties, good application prospects, good washing fastness and durability The effect of crocking fastness

Inactive Publication Date: 2010-11-24
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 fabric with bacterial dye prodigiosin

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Preparation of prodigiosin dye

[0021] 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 .

[0022] 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

[0024] The acrylic fabric samples will be dyed according to the following processes for testing:

[0025] Process 1: Dye dosage 3% (o.w.f), ethanol: water ratio 1: 2, liquor ratio 1: 40, pH 6.0, dyeing at 95°C for 50 min.

[0026] Process 2: Dye dosage 3% (o.w.f), methanol: water ratio 2: 3, bath ratio 1: 40, pH 4.0, dyeing at 90°C for 50 min.

[0027] 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.

[0028] Finally, the dry rubbing fastness of the acrylic fabric dyed by process 1 is 4 grades, and the wet rubbing fastness is 4-5; the dry rubbing fastness of the fabric after process 2 dyeing is 3-4 grades, and the wet rubbing fastness is 4 -5; the soaping fastness of the dyed fabric is 4-5.

[0029] After the fabric is dyed according to the above process, the antibacterial test of the fabric is carried out according to AATCC standard 100. The res...

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Abstract

The invention discloses a method for dyeing an acrylic fabric with bacterial dye prodigiosin. The method is characterized in that the amount of the dye used is 3 percent (o.w.f); the volume ratio of alcohol solvent to water is 1-2:2-3; the bath ratio is 1 to 40; the pH value is 4.0 to 6.0; the dyeing temperature is 90 to 95 DEG C; and the dyeing time is 50 minutes. The dyed acrylic fabric has high antibacterial property and a bacteriostasis rate of over 90 percent; and in addition, the dyed acrylic fabric has high washing fastness, high rubbing fastness, bright color and great application prospect.

Description

technical field [0001] The invention relates to the field of dyeing methods for bacterial dye prodigiosin, in particular to a method for dyeing acrylic fabrics with 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 pros...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P3/70C12P17/16C12R1/43
Inventor 赵涛钟绵国
Owner DONGHUA UNIV
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