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Cationic modified dyeing method for polypropylene fibers

A technology of polypropylene fiber and dyeing method, which is applied in the field of fabric dyeing, can solve the problems of many chemicals, large water consumption, and difficult treatment, and achieve the effect of uniform color, prolonging the service life, and fewer steps in the dyeing process

Inactive Publication Date: 2018-12-07
ANHUI ZHAOBAO TEXTILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the traditional dyeing method uses water as the medium, washing with water after dyeing consumes a lot of water, uses a lot of chemicals, and is difficult to treat

Method used

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Embodiment Construction

[0019] The embodiment of the present invention: a cationic modified dyeing method of polypropylene fiber, including the following steps:

[0020] (1) Fiber modification: According to the mass ratio of 3-chloro-2-hydroxypropyltrimethylammonium chloride to cellulose raw material of 0.2~1:1, take the cationic etherifying agent with the mass concentration of 73%, press The mass ratio of cationic etherifying agent to caustic soda is 3:1-9:1. Take caustic soda and dissolve it in 2 to 3 times pure by weight. After mixing the cationic etherifying agent and caustic soda aqueous solution, quickly immerse the cellulose raw material into the mixture. Stir thoroughly and mix well, and let stand for 20 minutes;

[0021] (2) Pretreatment: Immerse the modified polypropylene fiber grey cloth in an aqueous solution system containing ferrous ammonium sulfate and acrylamide, blow nitrogen for 15 minutes, and graft in a water bath at 80°C for 6 hours. After the reaction, the acrylamide monomer is remov...

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Abstract

The invention discloses a cationic modified dyeing method for polypropylene fiber. The cationic modified dyeing method comprises the following steps: (1) modification of the fibers; (2) pretreatment;(3) pre-setting of a grey fabric; (4) reduction clearing; (5) preparation of a dyeing solution; (6) dyeing; and (7) post-treatment. Compared with the prior art, the cationic modified dyeing method ofthe invention has the beneficial effects that the dyeing method solves the problems of high energy consumption and serious water pollution in conventional dyeing processes for cationic modified fabrics; fabrics dyed by using the dyeing method of the invention has uniform and bright colors and are prolonged in service life; the dyeing method has few steps and short dyeing time; and a dye can be recycled after dyeing, so environmental pollution is reduced.

Description

Technical field [0001] The invention relates to the field of fabric dyeing, in particular to a cationic modified dyeing method of polypropylene fiber. Background technique [0002] In recent years, the contradictions in the development of ecological circular economy in my country's textile industry have become increasingly prominent, especially the high dependence on water resources and environmental problems caused by high emissions have seriously restricted the sustainable development of the industry. According to incomplete statistics, my country's textile printing and dyeing industry consumes 1.7 billion tons of water in four years, and discharges as much as 1.6 billion tons of sewage. Compared with foreign countries, the water consumption of my country's textile printing and dyeing industry is 2-3 times that of foreign countries, and the energy consumption is 3-5 times that of foreign countries. Because the traditional dyeing method uses water as the medium, washing with w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/79D06P1/613D06P1/651D06P1/653D06P5/00D06P5/02
CPCD06P3/79D06P1/6135D06P1/65131D06P1/65168D06P1/6533D06P5/002D06P5/02
Inventor 谈杰章磊汪健东
Owner ANHUI ZHAOBAO TEXTILE TECH CO LTD
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