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A kind of floor leather based on leather fiber regenerated leather and preparation method thereof

A technology of dermal fiber and regenerated leather, applied in the field of floor leather material and floor leather base manufacturing, can solve the problem of affecting the interface strength and peeling resistance between functional layers, affecting the performance uniformity and service life of floor leather, and being unable to be used as floor leather. Substrate and other issues, to achieve excellent leather feel, excellent dimensional stability, avoid deformation and mildew effect

Inactive Publication Date: 2018-02-13
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 floor leather based on leather fiber regenerated leather and preparation method thereof
  • A kind of floor leather based on leather fiber regenerated leather and preparation method thereof
  • A kind of floor leather based on leather fiber regenerated leather and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0044] The preparation method of the genuine leather fiber regenerated leather comprises measuring the above-mentioned raw material fibers in proportion, sending them into an opener for mixing and opening, combing the above-mentioned mixed fiber raw materials into nets or air-laid nets, and then cross-lapping each The fiber mesh layer is laid up, and the cross-laid fiber mesh enters the stabbing area, and the front and back sides of the fiber mesh are needle-fixed; the stabbed fiber mesh is dried and then cut and heat-treated. The heat treatment is divided into 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 moisture 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.

[0045...

Embodiment 1

[0060] A kind of leather fiber regenerated leather for floor leather base layer 103, which is composed of leather fibers, inorganic fibers and viscose fibers with a skin-core structure, the leather fibers are from cowhide, the mass percentage is 70%, and the mass percentage of inorganic fibers 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.

[0061] The manufacturing method of this regenerated leather:

[0062] (1) Impurities removal and classification: First, screen, classify and remove impurities from various leather corners, and select cow leather scraps with higher strength;

[0063] (2) Cutting into pieces: cut the leftover material obtained in (1) into 40×40mm blocks with a pulverizer;

[0064] (3) Puffing and softening: Soak the leather corners obtained in (2) in an ...

Embodiment 2-7

[0073] 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 Table 2-Table 4.

[0074]

[0075] 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.

[0076]

[0077]

[0078]

[0079] As can be seen from Table 2: Embodiment 4 is a single-component kraft fiber regenerated leather, which has poor dimensional stability and low strength. Compared with it, Embodiment 1, 2 and 3 have added different proportions of glass fiber and viscose fiber 4080 , the dimensional stability and tensile breaking strength (transverse and longitudinal) of the resulting regenerat...

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Abstract

The invention relates to the technical field of floor leather, in particular to the technical field of floor leather base layer manufacturing, and particularly discloses floor leather based on dermal fiber reclaimed leather and a preparation method of the floor leather.The floor leather comprises a base layer and a functional layer composited with the base layer; the base layer of the floor leather is made of the dermal fiber reclaimed leather which is prepared from, by mass, 70%-80% of dermal fibers, 10%-20% of inorganic fibers and 10%-20% of viscose with a skin-core structure, the reclaimed leather is prepared after the fibers are subjected to mixed opening, net forming and laying, stabbing fixing, heat treating and cutting and waterproof treating, and the exposed section of the dermal fiber reclaimed leather is coated with a waterproof coating.The floor leather is green, environmentally friendly and poisonless, has the good size stability, moisture absorption resistance and strength uniformity, is easy to prepare and has the good economic benefit and social benefit.

Description

technical field [0001] The invention relates to the technical field of floor leather materials, in particular to the technical field of floor leather substrate manufacturing. Background technique [0002] PVC floor leather is a floor coil produced with polyvinyl chloride resin as the main raw material, adding appropriate additives, and coating or calendering on the sheet-like continuous base material. The sheet-like continuous base material is foamed 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 environmentally friendly elas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00D04H1/4266D04H1/425D04H1/4209D04H1/4218D04H1/4242D04H1/492D04H1/541B05D1/02B05D5/00B32B9/02B32B9/04B32B33/00
CPCB05D5/00B32B9/025B32B9/04B32B9/047B32B33/00D04H1/4209D04H1/4218D04H1/4242D04H1/4258D04H1/4266D04H1/492D04H1/541D06N3/0011D06N3/0015D06N3/0059D06N2209/145D06N2209/1685D06N2211/28
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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