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Method and equipment for removing trace organic solvent in artificial leather

An artificial leather and organic solvent technology, applied in textile processing machine accessories, textile material processing equipment configuration, textile material processing and other directions, can solve the problems of residual organic solvent, no organic solvent, etc. The effect of pollution, improving work efficiency and economic benefits

Active Publication Date: 2019-03-12
禾欣可乐丽超纤皮(嘉兴)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since most substrates can only use solvent-based PU, there are still traces of organic solvents in the product, and it is impossible to completely contain no organic solvents.

Method used

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  • Method and equipment for removing trace organic solvent in artificial leather
  • Method and equipment for removing trace organic solvent in artificial leather
  • Method and equipment for removing trace organic solvent in artificial leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] Example: When the equipment used in the example of the present invention is applied to a substrate with a width of 1.4m, the reference structure of this dry flash tank is:

[0028] The tank body 12 is 3.2 meters x 2.0 meters x 1.5 meters (internal dimensions of the tank body are length x width x height), the material is SUS304, and the thickness is 3 mm; there are 6 steam spray rollers 11, each with a length of 1.8 m and an outer diameter of 570 mm. , the diameter of the steam injection hole is 8mm, and the steam pressure is 0.2MPa; there are 3 guide rollers, namely the first guide roller 14, the second guide roller 14a, and the third guide roller 14b, each of which is 1.8 meters long and 125mm outside; The drive motor adopts YB2-132M-4 7.5KW motor, equipped with BWDB153 cycloidal pinwheel reducer, the speed ratio is 1:187, the removal method is as follows:

[0029] The artificial leather base material is introduced into the flash tank through the base cloth inlet 13, f...

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Abstract

The invention discloses a method and equipment for removing trace organic solvents in artificial leather. The removal equipment includes a tank body, guide rollers, several large-diameter steam spray rollers, etc. The tank body is provided with an inlet and outlet for artificial leather substrates; the steam roller is located in the tank body, and the steam spray roller has a hollow shaft leading to the tank body Externally, the steam enters the steam spray roller from the hollow shaft, and the external shaft of the steam spray roller is connected with gears, and the gears mesh with each other, and are driven by the same drive motor, which simplifies the complexity of its equipment, reduces its production cost, and improves its work. Efficiency and economic benefits, the method for removing trace organic solvents in artificial leather of the present invention is to introduce the artificial leather base material to be made into a steaming tank with a special device for penetrating flash evaporation, and steam will remove trace organic solvents Take it out to complete the purpose of removal, and produce artificial leather completely free of organic solvents to meet customer requirements.

Description

technical field [0001] The invention belongs to the technical field of artificial leather manufacturing, and particularly relates to a method and equipment for removing trace organic solvents in artificial leather. Background technique [0002] The demand for synthetic leather to be completely free of organic solvents such as TOL and DMF is high, although the surface technology can use solvent-free, water-based PU resin. However, since most of the substrates can only use solvent-based PU, there are still traces of organic solvents remaining in the product, which cannot be completely free of organic solvents. This patent uses low-pressure steam to perform a through-type flash evaporation method on the substrate to completely remove a trace amount of organic solvent in the substrate. SUMMARY OF THE INVENTION [0003] The present invention aims to provide a method and equipment for removing trace organic solvents in artificial leather. After the substrate processed by the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B1/14D06B1/16D06B23/20D06B23/02
CPCD06B1/142D06B1/148D06B1/16D06B23/025D06B23/20
Inventor 张军锋周铭强赵烈刘杰汤建飞
Owner 禾欣可乐丽超纤皮(嘉兴)有限公司