Preparation method of leather-imitating automobile leather

An automotive leather and imitation leather technology, applied in chemical instruments and methods, vehicle components, lamination, etc., can solve the problems of high cost, difficult to accept low-end passenger cars, etc., to meet the needs, easy post-processing, soft touch comfortable effect

Inactive Publication Date: 2015-01-28
HUALUN LEATHER & PLASTIC SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, its cost is high, and it is difficult to be accepted by middle and low-end passenger cars

Method used

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  • Preparation method of leather-imitating automobile leather
  • Preparation method of leather-imitating automobile leather

Examples

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preparation example Construction

[0024] like figure 1 Shown, a kind of preparation method of imitation leather automobile leather comprises the following steps:

[0025] 1) According to the use of automobile leather, design PU formula to prepare slurry, apply the slurry on the release paper to form a coating, complete the first coating process, and heat and dry to obtain the surface layer of automobile leather;

[0026] 2) Add bridging agent, leveling agent, flame retardant, and microsphere foaming agent to the high-solid resin, and stir evenly; apply the homogeneously mixed material to the automobile leather surface layer obtained in step 1) to form Coating, complete the second coating process, and heat and dry (foaming and drying) to prepare the middle supporting foam layer;

[0027] 3) coat the slurry prepared by the PU formula on the intermediate supporting foam layer obtained in step 2) to form a coating, and complete the third coating process;

[0028] 4) Bonding the coating formed in step 3) to the b...

Embodiment 1

[0033] According to the purpose of the prefabricated automobile leather, the formula of common PU is designed, and the formula is: 100 parts by weight of common dry surface layer resin, dimethylformamide of 50 parts by weight, ethyl acetate of 40 parts by weight, 10 parts by weight of The mixed material of the color paste, the paste is coated on the release paper to form a coating, and the first coating process is completed. The thickness of the coating needs to be controlled within the range of 0.20-0.25mm, preferably 0.25mm, and at 110-120°C Heated in an oven for 3 minutes and dried to obtain a car leather surface layer. Add 7 parts by weight of bridging agent, 0.5 parts by weight of leveling agent, 15 parts by weight of flame retardant, and 1 part by weight of microsphere foaming agent into 100 parts by weight of high-solid resin, and stir evenly, wherein, The bridging agent is JF-B-NY75, the leveling agent is 9565, the flame retardant is halogen-free flame retardant (HT-21...

Embodiment 2

[0036]The formulation of water-based PU is designed according to the purpose of the pre-manufactured automobile leather. Water-based PU is water-based polyurethane. The slurry is coated on the release paper to form a coating, and the first coating process is completed. The thickness of the coating is preferably controlled at 0.15- within the range of 0.18mm, and adopt 80-130°C gradient temperature heating and drying in an oven, the drying time is 5 minutes, and the vehicle speed is controlled below 5 m / min to obtain the automobile leather surface layer. Add 7 parts by weight of bridging agent, 0.5 parts by weight of leveling agent, 15 parts by weight of flame retardant, and 1 part by weight of microsphere foaming agent into 100 parts by weight of high-solid resin, and stir evenly, wherein, The bridging agent is JF-B-NY75, the leveling agent is 9565, the flame retardant is halogen-free flame retardant (HT-219B) TPU, and the microsphere foaming agent is TX-40; apply the above uni...

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Abstract

The invention relates to a preparation method of leather-imitating automobile leather. The preparation method comprises the following steps: firstly designing a PU formula according to the purpose of the automobile leather, preparing slurry, coating the slurry on a piece of release paper to finish the coating process for the first time, and heating and drying the paper to obtain a surface layer of the automobile leather; secondly, adding a bridging agent, a leveling agent, a fire retardant and a microballoon foaming agent to high solid resin to be stirred uniformly, coating the prepared material on the surface layer of the automobile leather to finish the coating process for the second time, and foaming and drying to obtain an intermediate support foaming layer; coating the slurry prepared according to the PU formula on the obtained intermediate support foaming layer to finish the coating process for the third time; furthermore, adhering the formed coating to base cloth, heating and drying the cloth, and conducting separation and curling; finally, conducting postprocessing, finishing the surface, and heating and drying so as to obtain the leather-imitating automobile leather. The method disclosed by the invention is made from the environment-friendly materials during the production process, clean in production, soft and comfortable in product touch, easy to conduct post process, and capable of meeting requirements on automobile upholstery leather for customers.

Description

technical field [0001] The invention relates to a preparation method of automobile leather, in particular to a preparation method of imitation leather automobile leather. Background technique [0002] Automotive leather has been widely used in the interior parts of passenger cars and transport vehicles. With the improvement of living standards, people have higher and higher requirements for the quality, environmental protection and comfort of automobile leather. The best choice for automotive interior leather is genuine leather. However, the environment of genuine leather is seriously polluted in its own production process, and the content of heavy metals is easy to exceed the standard. In addition, the finished product rate is low during the processing of interior parts. Therefore, its cost is high, and it is difficult to be accepted by middle and low-grade passenger cars. Therefore, it is a research and development task in the field of artificial leather production to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14B32B37/02B32B38/16B32B27/12B32B27/18B32B27/20B32B27/40
CPCD06N3/145D06N3/0009D06N3/0043D06N3/0059D06N2211/261D06N2211/28D06N2213/03
Inventor 高金岗潘红范学富
Owner HUALUN LEATHER & PLASTIC SUZHOU
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