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Method for dyeing polyester cotton on cone without reduction cleaning process

A process and bobbin technology, which is applied in the non-reduction cleaning dyeing process of polyester-cotton bobbins, can solve problems such as environmental pollution and increase production costs, and achieve the effects of exempting technological processes, saving water, electricity, and steam, and improving equipment productivity

Inactive Publication Date: 2012-06-27
宁波侨泰兴纺织有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, chemical products such as caustic soda and hydrosulfite are used in the dyeing reduction cleaning process, which not only increases the production cost but also pollutes the environment

Method used

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  • Method for dyeing polyester cotton on cone without reduction cleaning process
  • Method for dyeing polyester cotton on cone without reduction cleaning process
  • Method for dyeing polyester cotton on cone without reduction cleaning process

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Embodiment Construction

[0009] The present invention will be further described now in conjunction with accompanying drawing.

[0010] The invention includes dyeing and washing process, cotton dyeing process and post-washing process.

[0011] see figure 1 , the dyeing and washing process is carried out in sequence as follows: 1a, add hot water and dyes into the dye vat, and run for 5 minutes; 2a, raise the temperature in the dye vat to 133°C and maintain the temperature for 30 minutes; 3a, discharge the dye Then wash with cold water for 10 minutes.

[0012] see figure 2 , the cotton dyeing process is carried out sequentially according to the following process steps: 1b, under normal temperature, add sodium sulfate Na in the dyeing vat 2 so 4 And after running for 7 minutes, add dye; 2b, increase the temperature in the dye vat to 40°C and maintain the temperature for 10 minutes; 3b, increase the temperature in the dye vat to 60°C at a speed of 1°C per minute and maintain the temperature 30 minute...

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Abstract

The present invention aims at overcoming the defects of the prior art and provides a method for dyeing polyester cotton on cone without a reduction cleaning process. The method of the invention comprises a polyester dyeing process, a cotton dyeing process and an after-washing process. Compared with the prior art, the method of the invention is characterized in that a process of reduction cleaning is avoided through a dyeing technology of a disperse dye and an auxiliary agent, the color fastness can be ensured and the damage of the used sodium hydrate and sodium hydrosulfite on the environment during the process of reduction cleaning can be simultaneously avoided, the water, electricity and steam can be saved by about 15% and the productivity of the equipments can be enhanced by 10%.

Description

technical field [0001] The invention relates to the technical field of fabric dyeing, in particular to a reduction-cleaning-free dyeing process for polyester-cotton bobbins. Background technique [0002] In the traditional polyester-cotton dyeing process, the two-bath two-step method of disperse reactive dyes is generally used for dyeing. Dark colors will be washed with alkaline or acidic reduction after dyeing to improve color fastness. However, chemical products such as caustic soda and hydrosulfite are used in the dyeing reduction cleaning process, which not only increases the production cost but also pollutes the environment. Therefore, it is crucial to design a dyeing process capable of dyeing reduction-cleaning-free polyester-cotton bobbins. Contents of the invention [0003] The purpose of the invention is to overcome the deficiencies of the prior art and provide a dyeing process capable of dyeing polyester-cotton bobbins without reduction cleaning. [0004] In or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/82D06P1/16D06P1/673D06L1/16
Inventor 叶长华
Owner 宁波侨泰兴纺织有限公司
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