A non-wastewater discharge continuous dyeing process for microfiber materials

A process and technology of ultra-fine fiber, applied in the field of continuous dyeing process of ultra-fine nylon new material, can solve the problems of difficult implementation and large drainage in synthetic tanneries, achieve homochromatic guarantee, improve production efficiency, and pad dyeing rate improved effect

Active Publication Date: 2021-09-07
上海兴康超纤新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional pad washing process is a continuous washing and continuous discharge method, with a larger displacement. It is actually a continuation of dip dyeing, and it is also a rote copy of the traditional cotton pad dyeing process. It is difficult to implement in synthetic leather factories that require no sewage discharge.

Method used

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  • A non-wastewater discharge continuous dyeing process for microfiber materials
  • A non-wastewater discharge continuous dyeing process for microfiber materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the superfiber material to be treated is dyed light-colored, and the pad dyeing process adopted includes:

[0032] S1. padding, using acid dye paste to dye the superfiber material through two dipping and two padding processes (of course, one dipping and one padding or other alternate padding multiple padding processes can be used according to the specific requirements of padding) ; And add acid release agent;

[0033] S2. Microwave reaction, using a microwave radiation device to boil and vaporize the acid dye color paste on the superfiber material until the liquid-carrying rate is 10-15%;

[0034] Of course, due to differences in regional environmental temperature and humidity, and the needs of individual special processes, the liquid retention rate can also be controlled at 8-30%, and even further adjustments can be made, as long as effective dyeing is maintained and a certain liquid retention rate is maintained.

[0035] S301. Pass the sup...

Embodiment 2

[0039] Such as figure 2 As shown, the superfiber material to be treated is dyed dark, and the pad dyeing process is adopted, and the steps include:

[0040] S1. padding, using acid dye paste to dye the superfiber material through two dipping and two padding processes (of course, one dipping and one padding or other alternate padding multiple padding processes can be used according to the specific requirements of padding) ; And add acid release agent;

[0041] S2. Microwave reaction, using a microwave radiation device to boil and vaporize the acid dye color paste on the superfiber material until the liquid-carrying rate is 10-15%;

[0042] Of course, due to differences in regional environmental temperature and humidity, and the needs of individual special processes, the liquid retention rate can also be controlled at 8-30%, and even further adjustments can be made, as long as effective dyeing is maintained and a certain liquid retention rate is maintained.

[0043] S21. cleani...

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Abstract

The invention discloses a non-wastewater discharge continuous dyeing process for superfiber materials. The steps include: padding, using acid dye color paste to dye the superfiber materials through alternate padding processes; adding an acid release agent; microwave reaction , using a microwave radiation device to boil and vaporize the acid dye color paste on the superfiber dye; and drying for setting. The microfiber material padding process of the present invention is more efficient and more environmentally friendly, and there is no waste water discharge in the whole process, which conforms to the concept of environmental protection and sustainable development of today's industrial development; the high-speed and efficient dyeing process obtained by using the microwave reaction continuous dyeing process of the present invention The effect is very remarkable. The speed of dyeing in this process can reach 10 m / min, which greatly improves the production efficiency of the microfiber printing and dyeing industry and provides a strong technical guarantee for the current extremely fast-growing microfiber industry.

Description

technical field [0001] The invention relates to a continuous dyeing process of a polyurethane synthetic leather material, in particular to a continuous dyeing process of a new superfine nylon material. Background technique [0002] Microfiber material is the abbreviation of ultrafine fiber PU synthetic leather. It is a non-woven fabric made of ultrafine (fineness 0.03um) fiber short fibers through carding and needle punching into a three-dimensional structure network. It has excellent refilling performance and has a microporous structure. After post-wet processing. It has extremely excellent wear resistance, excellent cold resistance, breathability and aging resistance. [0003] However, from the perspective of dyeing, ultrafine nylon fibers in superfiber materials are 100 times thinner than normal fibers, and their specific surface area is 100 times larger than normal fibers. times the amount of dye, and many dyes can not be dyed, resulting in a large amount of dyed resid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/24D06P1/00D06P1/39D06P5/02D06P5/20
CPCD06P1/0016D06P1/39D06P3/241D06P5/02D06P5/2016
Inventor 朱建强陈宏明
Owner 上海兴康超纤新材料有限公司
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