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Denim warp yarn dyeing method and dyeing device adopted by same

A dyeing method and a technology of a dyeing device, which are applied in the field of denim dyeing, can solve problems such as uneven dyeing, achieve good white core effect, improve the scope of application, and improve the effect of rubbing fastness

Pending Publication Date: 2021-08-13
BLACK PEONY TEXTILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As we all know, although foam dyeing has the advantages of low liquid supply and high energy saving, it also has the disadvantage of uneven dyeing.
Since the dye used in denim warp dyeing is leuco indigo, uneven dyeing is more likely to occur

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Denim warp yarn dyeing method and dyeing device adopted by same
  • Denim warp yarn dyeing method and dyeing device adopted by same
  • Denim warp yarn dyeing method and dyeing device adopted by same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0049] The denim warp yarn dyeing method of the present embodiment is as follows:

[0050] ①Stir and mix the dyeing liquid and nitrogen in the gas-liquid mixing device according to the volume ratio of 1:10 to form a gas-liquid mixture, and then press the gas-liquid mixture into the dyeing device from the feed port 1-1 at a certain pressure, and Applied through the coating slot to the denim warp yarns.

[0051] The composition of the dye liquor in this embodiment is as follows: surfactant 30g / L (equivalent to 3%), penetrant 5g / L (equivalent to 0.5%), pre-reduced indigo dye 150g / L (equivalent to 15%), and the rest are water.

[0052] The surfactant used in this example is AOS14-16 [that is, sodium C14-16 alkenyl sulfonate], and the penetrant is SAS60. The coating gap of this embodiment is 40mm, and the yarn coverage factor of the denim warp is 75%.

[0053] ② Delayed oxidation of the denim warp yarn coated with the gas-liquid mixture in step ① for 125s in an oxygen-free envir...

Embodiment 2～ Embodiment 7）

[0056] Each embodiment is basically the same as embodiment 1, except that the oxidation time is delayed, see Table 2 for details.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a denim warp yarn dyeing method and a dyeing device adopted by the same. The denim warp yarn dyeing method comprises the following steps of uniformly coating denim warp yarns with a gas-liquid mixture formed by stirring and mixing dye liquor and gas through the dyeing device, and then carrying out oxidation fixation, drying and sizing. The dyeing device comprises a seat body, a movable side plate and a mounting panel; the middle width of a rear panel of the seat body and the middle width of the movable side plate are greater than those of the upper parts and the lower parts of the rear panel of the seat body and the movable side plate; and a lead screw on the mounting panel is connected with a lead screw connecting part on the movable side plate. According to the denim warp yarn dyeing method, it can be guaranteed that relatively good coating uniformity and white core effect are obtained, the application range is relatively wide, and the rubbing fastness of a denim fabric can be improved by controlling the delayed oxidation time.

Description

technical field [0001] The invention belongs to the technical field of denim dyeing, and in particular relates to a denim warp dyeing method and a dyeing device used therefor. Background technique [0002] Since entering the 21st century, people's ideas have undergone tremendous changes. "Green environmental protection" has become the "theme" of industrial production. policy. [0003] As we all know, although foam dyeing has the advantages of low liquid supply and high energy saving, it also has the disadvantage of uneven dyeing. Since the dye used in denim warp dyeing is leuco indigo, the problem of uneven dyeing is more likely to occur. Contents of the invention [0004] The object of the present invention is to solve the above problems, and to provide a denim warp dyeing method with better dyeing uniformity and wider application range and the dyeing device used therefor. [0005] The technical solution for realizing the object of the present invention is: a denim war...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06B1/08D06P1/22
CPCD06B1/08D06P1/22
Inventor 仇振华王宗伟雎开毅朱蓉萍许一辉姜为民唐金斌王克林张晓艳张爱法
Owner BLACK PEONY TEXTILE CO LTD
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