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Pretreatment method of waste cotton clothes

A pretreatment and clothing technology, which is applied in the field of pretreatment of waste cotton clothing, can solve the problems of environmental pollution, shortened service life, shortage of textile raw materials, etc., and achieve the effect of enhancing the decolorization effect

Inactive Publication Date: 2015-04-08
民勤县家兴节能服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The textile industry is closely related to people's lives, and the world's textile industry is also facing two major problems: First, with the development of the world economy and technology, the application field of textiles is gradually expanding, but its service life is shortened. With the rapid growth, the consumption of textiles has increased greatly, resulting in a shortage of textile raw materials and a sharp rise in prices; second, most of the used clothes are buried or burned as garbage, which not only causes waste of resources, but also pollutes the environment
[0005] After consulting the prior art, there is no method for pretreatment of waste clothes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Cleaning: Add 2% sodium hydroxide solution to the collected waste cotton clothes, wash them with ultrasonic vibration in water at 25 degrees Celsius for 1 hour, wash with water to remove dirt and dirt on the clothes, and then dry them;

[0022] Decolorization: First cut and break the washed waste cotton clothes into 50 square millimeter rags, remove buttons, zippers and other accessories, and then add hydrogen peroxide solution with a concentration of 0.5% to it for decolorization. Adjust the pH of the solution to 7.5 with sodium hydroxide solution, and place it in a water bath at 40-65 degrees Celsius for 6 hours;

[0023] Disinfection: Wash the decolorized cotton cloth strips with water for 3 times, dry them and put them in a sealed vacuum cabinet with an injection concentration of 55mg / m 3 Ozone, under the ambient condition of 70% relative temperature, acts for 1 hour to disinfect waste clothes.

Embodiment 2

[0025] Cleaning: Add 4% sodium hydroxide solution to the collected waste cotton clothes, wash them with ultrasonic vibration in water at 30 degrees Celsius for 2 hours, wash with water to remove dirt and dirt on the clothes, and then dry them;

[0026] Decolorization: first cut the washed waste cotton clothes into rags of 100 square millimeters, remove buttons, zippers and other accessories, and then add a 3% hydrogen peroxide solution to it for decolorization, and add it at the same time Adjust the pH of the solution to 9 with sodium hydroxide solution, and place it in a water bath at 65 degrees Celsius for 10 hours;

[0027] Disinfection: Wash the decolorized cotton cloth strips with clean water for 3 times, put them into a sealed vacuum cabinet after drying, and inject the concentration at 70mg / m 3 Ozone, under the ambient condition of relative temperature 80%, acts for 2 hours to disinfect waste clothes.

Embodiment 3

[0029] Cleaning: Add 3% sodium hydroxide solution to the collected waste cotton clothes, wash them with ultrasonic vibration in 30 degrees Celsius water for 2 hours, wash with water to remove dirt and dirt on the clothes, and then dry them;

[0030] Decolorization: first cut the washed waste cotton clothes into 50 square millimeter rags, remove buttons, zippers and other accessories, and then add hydrogen peroxide solution with a concentration of 2.5% to it for decolorization. Adjust the pH of the solution to 8 with sodium hydroxide solution, and place it in a water bath at 60 degrees Celsius for 10 hours;

[0031] Disinfection: Wash the decolorized cotton cloth strips with water for 3 times, dry them and put them in a sealed vacuum cabinet with an injection concentration of 65mg / m 3 Ozone, under the ambient condition of relative temperature 75%, acts for 2 hours to disinfect waste clothes.

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Abstract

The invention discloses a pretreatment method of waste cotton clothes, belonging to the technical field of renewable resources. The waste cotton clothes are pretreated by three steps of washing, de-coloring and disinfecting; particularly, environment-friendly and efficient reagents are used for treating the clothes in the de-coloring and disinfecting processes; and high-quality raw materials are provided and convenience is provided for post-period processing and manufacturing.

Description

technical field [0001] The invention belongs to the technical field of renewable resources, in particular to a pretreatment method for waste cotton clothes. Background technique [0002] The scarcity and pollution of resources are common problems faced by the world today. The textile industry is closely related to people's lives, and the world's textile industry is also facing two major problems: First, with the development of the world economy and technology, the application field of textiles is gradually expanding, but its service life is shortened. With the rapid growth, the consumption of textiles has increased greatly, resulting in a shortage of textile raw materials and a sharp rise in prices; second, most of the used clothes are buried or burned as garbage, which not only causes waste of resources, but also pollutes the environment . The completion of a piece of clothing involves a complex industrial chain and a large amount of energy consumption. In today's increas...

Claims

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Application Information

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IPC IPC(8): D06M11/34D06L1/12D06L3/02D06L3/06D06M101/06D06L4/12D06L4/13
Inventor 许开强
Owner 民勤县家兴节能服务有限公司
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