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A kind of genuine leather fiber regenerated leather for base layer of floor leather and preparation method thereof

A technology of dermal fiber and regenerated leather, applied in fiber treatment, chemical post-treatment of fibers, textiles and papermaking, etc., can solve the problems affecting the interface strength and peel strength between functional layers, affecting the performance uniformity and service life of floor leather, Can not be used as floor leather substrate and other problems, to achieve excellent leather feel, excellent dimensional stability, avoid deformation and mildew effect

Inactive Publication Date: 2018-05-25
SHIJIAZHUANG BAIFENBAI PLASTIC MATERIAL MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prior art genuine leather fiber regenerated leather cannot be used as a base material for floor leather due to its lack of performance and preparation technology
For example, when the ambient temperature exceeds 120°C, the pure component of the regenerated leather fiber leather begins to shrink and has poor dimensional stability; the main component of the regenerated leather fiber leather is collagen, and its exposed outer surface has poor moisture resistance; the regenerated leather fiber leather is not as good as PVC Other polymer sheets such as other polymer sheets are dense and thus the strength is not high, which affects the mechanical properties of floor leather; limited by the processing technology of recycled leather, the longitudinal and transverse strength and elongation at break of the obtained sheet have a large gap, that is, the longitudinal direction of the sheet has Higher strength and elongation at break affect the performance uniformity and service life of floor leather; in the process of compounding with other functional layers, the porosity and flatness of the regenerated leather sheet will affect the interfacial strength and Peel strength

Method used

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  • A kind of genuine leather fiber regenerated leather for base layer of floor leather and preparation method thereof
  • A kind of genuine leather fiber regenerated leather for base layer of floor leather and preparation method thereof
  • A kind of genuine leather fiber regenerated leather for base layer of floor leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The preparation method of the regenerated leather is to measure the above-mentioned raw material fibers in proportion, send them into an opener for mixing and opening, comb the above-mentioned mixed fiber raw materials into a net or air-laid net, and then separate each fiber web by cross-lapping. The cross-laid fiber web enters the stabbing area, and the front and back sides of the fiber web are needle-fixed; the stabbed fiber web is dried and then cut, and heat-treated. In two steps, the shaped regenerated leather obtained by stabbing is first kept at 100-120°C for 2-3 minutes, and then at 30-60°C for 30-60 minutes, so that the water content of the regenerated leather is 12 to 20%, and finally carry out waterproof treatment on the regenerated leather after heat treatment, and spray waterproof paint on its exposed section to form a waterproof layer and cover the exposed section.

[0038] The fiber web after cross-lapping effectively solves the shortcoming of poor transv...

Embodiment 1

[0053] A kind of genuine leather fiber regenerated leather for the base layer of floor leather, which is composed of genuine leather fiber, inorganic fiber and viscose fiber with a leather-core structure. The real leather fiber comes from cowhide, the mass percentage is 70%, and the mass percentage of inorganic fiber is 10% , the mass percentage of viscose fiber is 20%. The thickness of the regenerated leather is about 2.0mm, the transverse and longitudinal tear strengths are both above 34N, and the transverse and longitudinal tensile strengths are both above 6MPa.

[0054] The manufacturing method of this regenerated leather:

[0055] (1) Impurities removal and classification: First, screen, classify and remove impurities from various leather corners, and select cow leather scraps with higher strength;

[0056] (2) Cutting into pieces: cut the leftover material obtained in (1) into 40×40mm blocks with a pulverizer;

[0057] (3) Puffing and softening: Soak the leather corner...

Embodiment 2-7

[0066] In order to better compare the effects of different raw materials and processes on regenerated leather products, the following test groups were designed with Example 1 as the control group, as shown in Table 1, and the corresponding test results are shown in Tables 2-4.

[0067]

[0068] Wherein embodiment 1-4: the component of regenerated leather is different; Embodiment 1 and embodiment 5: the diameter of the 4080 viscose fiber of blending is different; Embodiment 1, embodiment 6 and embodiment 7: the diameter of spunlace water column different.

[0069]

[0070]

[0071]

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Abstract

The invention relates to the technical field of floor leather, in particular to the technical field of reclaimed leather manufactured through a non-woven fabric process, and discloses dermal fiber reclaimed leather for a floor leather base layer and a manufacturing method thereof.The dermal fiber reclaimed leather is manufactured from, by mass, 70%-80% of dermal fiber, 10%-20% of inorganic fiber and 10%-20% of viscose fiber with a skin-core structure.The fibers are subjected to mixing and opening, web forming and laying, needling and curing, heat treatment, cutting and waterproof treatment, and then the reclaimed leather is manufactured.The exposed cross section of the dermal fiber reclaimed leather is coated with a waterproof coating.The dermal fiber reclaimed leather is environmentally friendly and free of toxicity, has good elasticity and tenacity, dimensional stability, moisture absorption resistance and strength uniformity, and is suitable for being used as a floor leather base layer material.

Description

technical field [0001] The invention relates to the technical field of floor leather, in particular to the technical field of regenerated leather prepared by a non-woven fabric process. Background technique [0002] Polyvinyl chloride (PVC) floor leather is a floor coil produced by coating or calendering on the sheet-like continuous base material with PVC resin as the main raw material and adding appropriate additives. The sheet-like continuous base material is foamed High-quality PVC material, the thickness generally accounts for more than 80% of the finished floor leather. The PVC foaming process is complicated, and a large amount of plasticizers, stabilizers, antioxidants and other additives need to be added. The complexity of raw materials directly determines the safety hazards of PVC floor leather products, which can easily cause excessive volatilization of organic components and Heavy metal pollution. [0003] Genuine leather fiber regenerated leather is a green and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00D04H1/485D04H1/4382D01C3/00
CPCD01C3/00D04H1/4382D04H1/485D06N3/0011D06N3/0015D06N2211/28
Inventor 刘治平曾兵席书怀冯玮玮杨耀超刘海兵
Owner SHIJIAZHUANG BAIFENBAI PLASTIC MATERIAL MFG CO LTD
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