阅读说明：本技术 一种纯棉面料的灵菌红素染色方法 (Prodigiosin dyeing method of pure cotton fabric ) 是由 潘伟 潘金根 于 2020-07-27 设计创作，主要内容包括：本发明公开了一种纯棉面料的灵菌红素染色方法,包括以下步骤：用过氧化氢将纯棉织物用进行预处理；然后将纯棉织物取出后进行水洗、烘干；用乙酸乙酯将灵菌红素溶解,并加入天然助染剂,加水,高速搅拌均匀,制成染液；将干燥后的纯棉织物放入染液中染色；在染液中加入低温皂洗剂,将染色后的纯棉织物进行皂洗,取出后再经清洗冲洗、低温烘干,得到染色纯棉织物。本发明的灵菌红素染色方法与传统的灵菌红素染色方法的主要区别在于加入了助染剂,该助染剂的主要成分为壳聚糖、瓜尔胶、分散剂和柠檬酸,除少量分散剂外,其余物料均为天然材料,环保安全；本发明染色后的纯棉面料颜色鲜艳,色牢度高。(The invention discloses a prodigiosin dyeing method of pure cotton fabric, which comprises the following steps: pretreating the pure cotton fabric by using hydrogen peroxide; then taking out the pure cotton fabric, and washing and drying the pure cotton fabric; dissolving prodigiosin with ethyl acetate, adding a natural dyeing assistant, adding water, and uniformly stirring at a high speed to prepare a dye solution; putting the dried pure cotton fabric into a dye solution for dyeing; and adding a low-temperature soaping agent into the dye liquor, soaping the dyed pure cotton fabric, taking out, washing, and drying at low temperature to obtain the dyed pure cotton fabric. The prodigiosin dyeing method is mainly different from the traditional prodigiosin dyeing method in that a dyeing assistant is added, the main components of the dyeing assistant are chitosan, guar gum, a dispersing agent and citric acid, and except a small amount of the dispersing agent, the other materials are all natural materials, so that the prodigiosin dyeing method is environment-friendly and safe; the dyed pure cotton fabric has bright color and high color fastness.)

1. A prodigiosin dyeing method of pure cotton fabric is characterized by comprising the following steps:

A. pretreating a pure cotton fabric: boiling in boiling water for 30-40min, adding hydrogen peroxide and stabilizer, and treating at 60-70 deg.C for 15-20 min;

B. taking out the pure cotton fabric, washing with water, and drying at 30-40 ℃;

C. dissolving prodigiosin with ethyl acetate, adding a natural dyeing assistant, then adding the natural dyeing assistant into water, and uniformly stirring at a high speed to prepare a dye solution;

D. and (3) putting the dried pure cotton fabric into a dye solution for dyeing, wherein the bath ratio is 1: (8-15), adjusting the pH value of the dye solution to 3.2-3.5, dyeing temperature to 40-50 ℃, and keeping the temperature for 45-60 min;

E. adding a low-temperature soaping agent into the dye liquor, soaping the dyed pure cotton fabric, treating at the temperature of 40-50 ℃ for 3-5min, taking out, washing, and drying at low temperature to obtain the dyed pure cotton fabric.

2. The method for dyeing prodigiosin of pure cotton fabric according to claim 1, wherein in the step a, the addition amount of the hydrogen peroxide is 3-5% and the addition amount of the stabilizer is 0.1-0.3%.

3. The method for dyeing prodigiosin of pure cotton fabric according to claim 1, wherein in the step C, the concentration of prodigiosin is 2-10%.

4. The method for dyeing prodigiosin of pure cotton fabric according to claim 1, wherein in the step C, the dyeing auxiliary comprises the following components: chitosan, guar gum, a dispersant and citric acid.

5. The method for dyeing prodigiosin of pure cotton fabric according to claim 1, wherein in the step C, the dyeing assistant comprises the following components in percentage by weight: 60-80% of chitosan, 8-15% of guar gum, 3-8% of dispersant and the balance of citric acid.

6. The method for dyeing prodigiosin of pure cotton fabric according to claim 4 or 5, wherein in the step C, the addition amount of the dyeing auxiliary is 15-25% of the mass of prodigiosin.

7. A prodigiosin dyeing method of pure cotton fabrics according to claim 4 or 5 characterized in that said guar gum is a pure natural colloid extracted from plants.

8. The method for dyeing prodigiosin of pure cotton fabric according to claim 1, wherein in the step D, the addition amount of prodigiosin is 0.2-10% of that of pure cotton fabric.

Technical Field

The invention relates to the technical field of textile printing and dyeing, in particular to a prodigiosin dyeing method of a pure cotton fabric.

Background

In recent years, due to the influence of environmental and energy problems, people tend to pursue sustainable, environment-friendly and human health-beneficial methods for preparing dyes. The development of natural dyes is the general trend of the development of the application dyes in the world, the natural dyes refer to dyes which are obtained from plants, animals or mineral resources and are subjected to little or no chemical processing, a plurality of natural dyes have the advantages of safety, reliability, natural color tone, approach to natural substances and the like, and the natural and multifunctional functions are the development trends of the dyes. Therefore, the microorganisms capable of producing the natural dye are screened from natural resources, and the novel natural dye, especially the functional natural dye, is developed and has wide prospect. With the development of biotechnology, the production of natural dyes by using biotechnology opens up a wide field for people. The biological fermentation product has high stability, strong specificity, no pollution and no harm to human in the production process, so the biological fermentation method is a good method for synthesizing the dye.

The bacterial dye prodigiosin is a natural pigment with a methoxyl pyrrole skeleton structure consisting of three pyrrole rings, is a secondary metabolite of actinomycetes, serratia and other bacteria, and has multiple biological activities of immunosuppression, bacteria resistance, fungi resistance, malaria resistance and the like. Therefore, the bacterial dye prodigiosin has an antibacterial function after being used as a dye for dyeing the fabric, and has an anticancer effect.

Four patents of the university of east China in 2010 and 2011 disclose dyeing methods of prodigiosin on wool and acrylic fibers, but the dyeing method of silk fibers is not researched. The Chinese invention patent CN 106192459A discloses a method for dyeing silk fabrics by using prodigiosin, but no study is made on the prodigiosin dyeing method of pure cotton fabrics at present, and the invention provides the prodigiosin dyeing method of the pure cotton fabrics in order to expand the application range of the prodigiosin as a microbial dye.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a prodigiosin dyeing method for pure cotton fabric.

The technical scheme of the invention is as follows:

a prodigiosin dyeing method of pure cotton fabric comprises the following steps:

A. pretreating a pure cotton fabric: boiling in boiling water for 30-40min, adding hydrogen peroxide and stabilizer, and treating at 60-70 deg.C for 15-20 min;

B. taking out the pure cotton fabric, washing with water, and drying at 30-40 ℃;

C. dissolving prodigiosin with ethyl acetate, adding a natural dyeing assistant, then adding the natural dyeing assistant into water, and uniformly stirring at a high speed to prepare a dye solution;

D. and (3) putting the dried pure cotton fabric into a dye solution for dyeing, wherein the bath ratio is 1: (8-15), adjusting the pH value of the dye solution to 3.2-3.5, dyeing temperature to 40-50 ℃, and keeping the temperature for 45-60 min;

E. adding a low-temperature soaping agent into the dye liquor, soaping the dyed pure cotton fabric, treating at the temperature of 40-50 ℃ for 3-5min, taking out, washing, and drying at low temperature to obtain the dyed pure cotton fabric.

Preferably, in the step A, the adding amount of the hydrogen peroxide is 3-5%, and the adding amount of the stabilizer is 0.1-0.3%.

Preferably, in the step C, the concentration of the prodigiosin is 2-10%.

Preferably, in the step C, the dyeing assistant comprises the following components: chitosan, guar gum, a dispersant and citric acid.

Further preferably, in the step C, the dyeing assistant comprises the following components in percentage by weight: 60-80% of chitosan, 8-15% of guar gum, 3-8% of dispersant and the balance of citric acid.

Preferably, in the step C, the addition amount of the dyeing auxiliary is 15-25% of the mass of the prodigiosin.

Further preferably, the guar gum is a pure natural colloid extracted from plants.

Preferably, in the step D, the adding amount of the prodigiosin is 0.2-10% of that of the pure cotton fabric.

The invention has the advantages that: the prodigiosin dyeing method of the pure cotton fabric comprises the following steps: pretreating the pure cotton fabric by using hydrogen peroxide; then taking out the pure cotton fabric, and washing and drying the pure cotton fabric; dissolving prodigiosin with ethyl acetate, adding a natural dyeing assistant, adding water, and uniformly stirring at a high speed to prepare a dye solution; putting the dried pure cotton fabric into a dye solution for dyeing; and adding a low-temperature soaping agent into the dye liquor, soaping the dyed pure cotton fabric, taking out, washing, and drying at low temperature to obtain the dyed pure cotton fabric. The prodigiosin dyeing method is mainly different from the traditional prodigiosin dyeing method in that a dyeing assistant is added, the main components of the dyeing assistant are chitosan, guar gum, a dispersing agent and citric acid, and except a small amount of the dispersing agent, the other materials are all natural materials, so that the prodigiosin dyeing method is environment-friendly and safe; the dyed pure cotton fabric has bright color and high color fastness.

Detailed Description