Split leather base for car seats, method for manufacturing same, leather for car seats that uses same split leather base, and method for manufacturing same

A technology for car seats and manufacturing methods, which is applied in the field of leather for car seats and its manufacturing, can solve the problems of hard leather, difficult to stretch, heavy weight, insufficient surface properties such as surface smoothness of two-layer leather leather, etc., and achieve a solution heavier weight effect

Inactive Publication Date: 2012-11-14
MIDORI HOKUYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Split leather is interwoven with relatively thick and dense fibers. In order to use it as a split leather material for car seats and leather for car seats, it is necessary to solve the following problems of split leather. : (1) The weight per unit area is relatively heavy, (2) The surface properties such as smoothness of the surface of split leather leather are not sufficient, and (3) The resulting leather is hard and difficult to stretch

Method used

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  • Split leather base for car seats, method for manufacturing same, leather for car seats that uses same split leather base, and method for manufacturing same
  • Split leather base for car seats, method for manufacturing same, leather for car seats that uses same split leather base, and method for manufacturing same
  • Split leather base for car seats, method for manufacturing same, leather for car seats that uses same split leather base, and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0240] preprocessing

[0241] The cowhide is pickled and preserved directly in the state of being peeled off from the animal.

[0242] Take it out and pass it through an antiseptic.

[0243] Subcutaneous tissue, pieces of meat, fat, etc. are attached to the inner surface of the raw hide, and the meat is shaved using a meat slicing machine to remove these.

[0244] The raw skin that has been softened by adding water is soaked in milk of lime to dissolve and remove the epidermal tissue.

[0245] Neutralize by deliming, add water to dissolve calcium hydroxide through shrinkage, and perform pickling treatment with acid after performing zymolytic softening treatment with enzyme treatment.

Embodiment 2

[0247] Tanning process

[0248] For 160kg of leather weight, add trivalent chromium complex of tanning agent, Cr in 156kg of water 2 (SO 4 ) 38.8kg and baking soda 0.6kg for tanning. The treatment temperature is 38° C., the pH is 3.5, and the treatment time is 12 hours.

Embodiment 3

[0250] The obtained leather is divided into grain-containing leather and split leather with a thickness of 2.6 mm using a belt knife machine. , first cut the surface of the grain side with a belt knife, thereby obtaining a split layer of leather with a thickness of 2.5±0.3mm, and then use a shaving machine to cut the flesh side of the split layer to make the thickness 1.5±0.3mm, Further, the grain side is cut by a shaving machine to obtain a split leather of 1.3 ± 0.3 mm (± 0.3 mm is the tolerance range of the belt knife machine and the shaving machine).

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Abstract

Provided are a novel split leather base for car seats and novel leather for car seats, whereby the following problems relating to split leather are solved: (1) that the weight per unit area thereof is heavy; (2) that surface properties, such as surface skin smoothness, characteristically shown by split leather are insufficient; and (3) that leather obtained by using split leather is hard, and hardly stretchable. Hide that has been tanned after the completion of pretreatment application thereto is separated into hide containing grain leather, and split leather having a thickness of 2.3 - 4.0 mm. The thus removed split leather is placed with the flesh side and grain side thereof facing upward and downward, respectively. While being thus placed, the split leather is formed into split leather having a thickness of 1.8 - 2.6 mm, and then, the flesh side of this split leather is shaved, whereby the split leather is thinned to a thickness of 1.1 - 2.0 mm. Then, the split leather base for car seats, which has a thickness of 1.0 - 1.6 mm, is manufactured from this split leather. Then, the split leather base is tanned and retanned, whereby a coating film is formed thereon.

Description

technical field [0001] The present invention relates to a split leather material for a car seat and a manufacturing method thereof, and leather for a car seat using the split leather material for a car seat and a manufacturing method thereof. Background technique [0002] Since ancient times, the superior material characteristics of natural leather have been used in appliances used in industry and daily life. Natural leather is made from raw hide. Among cowhide, there are large hides (heavy leather with a certain thickness of more than 25 pounds such as cowhide) and small pieces of hide (skin) (thinner and smaller light leather such as cowhide). Among the small pieces of leather are calfskin (the hide of calf under 6 months old) and middle cowhide (the hide of middle-aged cow from 6 months to 2 years old). [0003] Fresh skins go through a series of processes as a pretreatment process, namely, fretting (removing the subcutaneous tissue, meat pieces, fat, etc. Residue) aft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14B1/18B32B9/02B32B27/40C14C3/06C14C3/10C14C11/00
CPCC14B1/46C14B1/18C14C3/06C09D175/04C14C11/006C14C3/28C14C9/02Y10T428/2495
Inventor 福川满阿部义博柏仓伸次
Owner MIDORI HOKUYO CO LTD
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