Biological enzyme pretreatment method for textiles

Abstract

The invention provides a biological enzyme pretreatment method for textiles. The biological enzyme pretreatment method comprises the following steps: padding a textile in a biological compound enzyme liquid at 20 to 70 DEG C till the liquid content is 80 to 100%; carrying out cold batching at 20 to 40 DEG C for 6 to 12 hours, or carrying out steaming with 50 to 70 DEG C saturated steam for 0.5 to 1 hour; washing with 70 to 80 DEG C hot water for 2 to 4 times; carrying out oxygen bleaching with an oxygen bleaching liquid till the liquid content is 80 to 100%; carrying out steaming with 100 DEG C saturated steam for 10 to 30 minutes; washing with 70 to 80 DEG C hot water for 2 to 4 times again; drying. The biological enzyme pretreatment method has the advantages that treatment before desizing and refining is realized with the biological compound enzyme in one step; a bleaching auxiliary agent replaces caustic soda in the oxygen bleaching step, so that the neutralizing step of the conventional alkali wastewater treatment process is eliminated, energy and water are saved, and pollution and cost are reduced; meanwhile, the quality of a textile treated according to the biological enzyme pretreatment method is higher than that of a textile treated according to the conventional process, the desizing rate of the textile subjected to enzymatic treatment is equal to or higher than 98%; the capillary effect is equal to or higher than 10cm / 15min (radial); the whiteness is equal to or higher than 89.

Description

technical field

[0001] The invention belongs to the technical field of textiles, and relates to a textile biological enzyme pretreatment method. Background technique

[0002] The textile industry is one of my country's traditional pillar industries, and has an important economic position and strong industrial foundation in my country's light industry. However, it is unavoidable that the traditional textile industry is also an industry with heavy pollution, high energy consumption, and large water consumption. In the process of desizing, scouring, oxygen bleaching and mercerizing, a large amount of chemical preparations such as caustic soda and hydrogen peroxide are used, which not only consumes a lot of water and energy, but also causes serious environmental pollution. In recent years, governments at all levels in our country have paid more and more attention to the prevention and control of pollution problems, and have successively issued more and more stringent emission re...

Examples

Embodiment 1

[0055] In this embodiment, textiles are subjected to enzymatic cold-heap treatment by the following method, which specifically includes the following steps:

[0056] (1) Padding biological compound enzyme liquid: pad cotton gray cloth (specification 20×16) in the biological compound enzyme liquid at 40°C, one dipping and one rolling, the liquid retention rate is 100%; Biological compound enzyme solution includes the following components: 1200U / mL α-amylase, 900U / mL cellulase, 10000U / mL xylanase, 800U / mL pectinase, 2g / L calcium chloride, 10g / L preservative agent and 80g / L surfactant, pH6.0~7.0;

[0057] (2) Cold pile at 40°C for 6h;

[0058] (3) Wash 2 times with hot water at a temperature of 70° C., wash 1 time with cold water (i.e. normal temperature water), and then use oxygen bleaching liquid for oxygen bleaching. The oxygen bleaching liquid includes the following components: 10g / L oxygen bleaching aid, 15g / L hydrogen peroxide, 8g / L chelating agent and 2g / L penetrating ag...

Embodiment 2

[0061] In this embodiment, textiles are subjected to enzymatic cold-heap treatment by the following method, which specifically includes the following steps:

[0062] (1) Padding biological compound enzyme liquid: pad cotton gray cloth (specification 20×16) in the biological compound enzyme liquid at 20°C, one dipping and one rolling, the liquid retention rate is 80%; Biological compound enzyme solution includes the following components: 2000U / mL α-amylase, 800U / mL cellulase, 9000U / mL xylanase, 400U / mL pectinase, 8g / L calcium chloride, 15g / L preservative agent and 100g / L surfactant, pH6.0~7.0;

[0063] (2) Cold pile at 20°C for 12h;

[0064] (3) Wash 4 lanes with hot water at a temperature of 80° C., wash 1 lane with cold water, and then use oxygen bleaching liquid for oxygen bleaching. The oxygen bleaching liquid includes the following components: 20g / L oxygen bleaching aid, 5g / L hydrogen peroxide, 10g / L chelating agent and 5g / L penetrating agent, the liquid carrying rate is...

Embodiment 3

[0067] In this embodiment, textiles are subjected to enzymatic cold-heap treatment by the following method, which specifically includes the following steps:

[0068] (1) Padding biological compound enzyme liquid: pad cotton gray cloth (specification 20×16) in the biological compound enzyme liquid at 60°C, one dipping and one rolling, the liquid retention rate is 90%; Biological compound enzyme solution includes the following components: 1500U / mL α-amylase, 1000U / mL cellulase, 12000U / mL xylanase, 1000U / mL pectinase, 5g / L calcium chloride, 5g / L preservative agent and 50g / L surfactant, pH6.0~7.0;

[0069] (2) Cold pile at 30°C for 8h;

[0070] (3) Wash 3 times with hot water at a temperature of 80° C., wash 1 way with cold water, and then use oxygen bleaching liquid for oxygen bleaching. The oxygen bleaching liquid includes the following components: 25g / L oxygen bleaching aid, 10g / L hydrogen peroxide, 2g / L chelating agent and 10g / L penetrating agent, the liquid carrying rate is...

technical field

[0001] The invention belongs to the technical field of textiles, and relates to a textile biological enzyme pretreatment method. Background technique

[0002] The textile industry is one of my country's traditional pillar industries, and has an important economic position and strong industrial foundation in my country's light industry. However, it is unavoidable that the traditional textile industry is also an industry with heavy pollution, high energy consumption, and large water consumption. In the process of desizing, scouring, oxygen bleaching and mercerizing, a large amount of chemical preparations such as caustic soda and hydrogen peroxide are used, which not only consumes a lot of water and energy, but also causes serious environmental pollution. In recent years, governments at all levels in our country have paid more and more attention to the prevention and control of pollution problems, and have successively issued more and more stringent emission re...

Examples

Embodiment 1

[0055] In this embodiment, textiles are subjected to enzymatic cold-heap treatment by the following method, which specifically includes the following steps:

[0056] (1) Padding biological compound enzyme liquid: pad cotton gray cloth (specification 20×16) in the biological compound enzyme liquid at 40°C, one dipping and one rolling, the liquid retention rate is 100%; Biological compound enzyme solution includes the following components: 1200U / mL α-amylase, 900U / mL cellulase, 10000U / mL xylanase, 800U / mL pectinase, 2g / L calcium chloride, 10g / L preservative agent and 80g / L surfactant, pH6.0~7.0;

[0057] (2) Cold pile at 40°C for 6h;

[0058] (3) Wash 2 times with hot water at a temperature of 70° C., wash 1 time with cold water (i.e. normal temperature water), and then use oxygen bleaching liquid for oxygen bleaching. The oxygen bleaching liquid includes the following components: 10g / L oxygen bleaching aid, 15g / L hydrogen peroxide, 8g / L chelating agent and 2g / L penetrating ag...

Embodiment 2

[0061] In this embodiment, textiles are subjected to enzymatic cold-heap treatment by the following method, which specifically includes the following steps:

[0062] (1) Padding biological compound enzyme liquid: pad cotton gray cloth (specification 20×16) in the biological compound enzyme liquid at 20°C, one dipping and one rolling, the liquid retention rate is 80%; Biological compound enzyme solution includes the following components: 2000U / mL α-amylase, 800U / mL cellulase, 9000U / mL xylanase, 400U / mL pectinase, 8g / L calcium chloride, 15g / L preservative agent and 100g / L surfactant, pH6.0~7.0;

[0063] (2) Cold pile at 20°C for 12h;

[0064] (3) Wash 4 lanes with hot water at a temperature of 80° C., wash 1 lane with cold water, and then use oxygen bleaching liquid for oxygen bleaching. The oxygen bleaching liquid includes the following components: 20g / L oxygen bleaching aid, 5g / L hydrogen peroxide, 10g / L chelating agent and 5g / L penetrating agent, the liquid carrying rate is...

Embodiment 3

[0067] In this embodiment, textiles are subjected to enzymatic cold-heap treatment by the following method, which specifically includes the following steps:

[0068] (1) Padding biological compound enzyme liquid: pad cotton gray cloth (specification 20×16) in the biological compound enzyme liquid at 60°C, one dipping and one rolling, the liquid retention rate is 90%; Biological compound enzyme solution includes the following components: 1500U / mL α-amylase, 1000U / mL cellulase, 12000U / mL xylanase, 1000U / mL pectinase, 5g / L calcium chloride, 5g / L preservative agent and 50g / L surfactant, pH6.0~7.0;

[0069] (2) Cold pile at 30°C for 8h;

[0070] (3) Wash 3 times with hot water at a temperature of 80° C., wash 1 way with cold water, and then use oxygen bleaching liquid for oxygen bleaching. The oxygen bleaching liquid includes the following components: 25g / L oxygen bleaching aid, 10g / L hydrogen peroxide, 2g / L chelating agent and 10g / L penetrating agent, the liquid carrying rate is...

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