Preparation method of spun-laced regenerated leather for automotive interior surface

A technology for automotive interiors and recycled leather, applied in textiles, papermaking, non-woven fabrics, etc., can solve the problem of not using the material preparation stage to provide more direct and powerful help to the material forming stage, and lack of material preparation and molding. Planning, low production efficiency and other issues, to achieve the effect of environmental protection, enriching categories, and reducing blockage

Active Publication Date: 2016-09-28
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that there are many processes, low production efficiency and high cost.
The above two patents reflect a common technical defect: the early stage of regenerated leather preparation and the later stage of reg

Method used

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  • Preparation method of spun-laced regenerated leather for automotive interior surface
  • Preparation method of spun-laced regenerated leather for automotive interior surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) 60Kg of cowhide fiber prepared by cowhide leftovers with a water content of 15% and 9Kg of 4080 fiber with a skin-core structure are accurately weighed, and are sent into the opener 101 for mixing and opening.

[0050] (2) Feed mixed fibers for air-forming. A layer of continuous 4080 fiber mat with a thickness of 50 μm is pre-laid on the output curtain, and then a four-curtain cross-folding method is used to lay the web on the 4080 fiber mat. Divide the one-way trip of the net-laying trolley into five sections, the length ratio is 1:2:4:2:1, and the corresponding speed ratio of the net-laying trolley is 1.12:1.06:1:1.06:1.12.

[0051] (3) Before the laid fiber web is sent to the spunlace area for reinforcement, it is pre-humidified by the clamping pre-humidification method of the perforated roller and the net delivery curtain.

[0052] (4) The pre-wetted fiber net enters the spunlace area, and a total of seven spunlaces are used. The hole diameter of the orifice pl...

Embodiment 2

[0057] (1) Accurately weigh 60Kg of fibers prepared from cowhide leftovers with a water content of 20% and 12Kg of N720 fibers with a sheath-core structure, and carry out rough opening and fine opening respectively after mixing.

[0058] (2) Feed the mixed fiber and card it into a web.

[0059] (3) if figure 1 As shown in 108, a layer of N720 fiber mat with a thickness of 30 μm is pre-laid on the output curtain, and then the N720 fiber mat is laid on the N720 fiber mat by double-clamping method. Divide the one-way trip of the net-laying trolley into five sections, the length ratio is 1:2:4:2:1, and the corresponding speed ratio of the net-laying trolley is 1.12:1.06:1:1.06:1.12.

[0060] (4) Before the spunlace reinforcement of the paved fiber web, it is pre-humidified by double-net clamping, and the pressure of the pre-wet spunlace 113 is 25 bar.

[0061] (5) The pre-wetted fiber net enters the spunlace area, and a total of seven spunlaces are used. The hole diameter of the...

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Abstract

The invention provides a preparation method of spun-laced regenerated leather for an automotive interior surface. The preparation method comprises the following specific steps: (1) loosening and mixing fibers; (2) forming a net; (3) spreading the net; (4) pre-wetting; (5) spun-lacing; (6) drying; (7) carrying out vacuum plastic-absorption and molding. The requirements on material molding properties and mechanical properties by the automotive interior surface and industrial standards are sufficiently considered at the beginning of designing, and raw material ratios and a production process are reasonably optimized, so that collaboration of design, preparation and molding machining of a composite material is realized. Compared with traditional automotive interior surfaces including polyvinyl chloride, polyurethane and the like, the prepared automotive interior surface has the advantages of greenness and environmental friendliness, no odor, excellent elasticity, moderate strength, comfortable hand feeling, high cost performance and the like and is suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of automobile interior decoration, and in particular relates to a preparation method of spunlace regenerated leather used for automobile interior decoration skin. Background technique [0002] The traditional tanning process produces a large amount of waste, such as hides and other offcuts from wetblue trimming. Usually these wastes will be piled up and then sent to the garbage dump for centralized treatment. This treatment method will not only cause environmental pollution, but also a huge waste of resources. In recent years, some scientific research units and enterprises have begun to try to reuse these "waste", that is, to obtain collagen fibers or regenerated protein fibers by dry or wet methods, and combine them with non-woven technology to prepare various types of regenerated leather. Usually, these regenerated leathers are positioned at the beginning of preparation for the inner, middle and surface l...

Claims

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Application Information

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IPC IPC(8): D06N3/00D06N3/14D04H1/70D04H1/492
CPCD04H1/492D04H1/70D06N3/00D06N3/14
Inventor 贾玉玺周勇徐永正智杰颖赵亚如
Owner SHANDONG UNIV
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