Curtain-coated composite leather for steering wheel and preparation method thereof
A steering wheel and shower curtain technology, applied in the field of auto parts, can solve the problems affecting the effective use of resources, uneven direction of elastic force, substandard tear strength, etc., to improve the economic value of use, increase profit margins, and reduce surface injuries Effect
Pending Publication Date: 2020-04-17
浙江铁凝汽车用品有限公司
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Problems solved by technology
[0003] At present, the leather used for steering wheels in the market is generally dominated by the second layer of cowhide top layer. Because cowhide is a natural material, there are differences in parts and natural disabilities. etc.) and uneven elastic direction, tear strength is not up to standard, etc., which seriously affect the effective utilization of resources (the utilization rate is about 30-50%), a great waste of resources, and high production costs
Method used
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Embodiment 1-4
[0034] Disclosed is a composite leather with curtain for steering wheel. The composite leather with curtain for steering wheel consists of a finishing layer, a curtain layer, an adhesive layer and a leather embryo in sequence from top to bottom, and the finishing layer, the curtain layer, the adhesive layer and the embryo are combined into one. The finishing layer includes an undercoat layer on the surface of the leather embryo and a top coat layer covering the undercoat layer. The leather embryo is cowhide, and the finishing layer is water-based polyurethane coating. The finished thickness of the steering wheel curtain composite leather is controlled at 1.2-1.5mm.
[0035] Selection of leather embryo: Choose environmentally friendly cowhide that meets the requirements of automotive interiors on the market (including the first layer and the second layer). The thickness is generally 1.0-1.2mm, and the thickness depends on the final needs of customers. There are warp and latitude...
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Abstract
The invention relates to a preparation method of a steering wheel, in particular to curtain-coated composite leather for a steering wheel and a preparation method thereof, belonging to the field of automobile parts. The method comprises the following steps: selecting a leather blank with a thickness of 1.0-1.2 mm, coating the front surface of the leather blank with a layer of automotive trim glue,conducting drying to form a bonding layer, spraying waterborne polyurethane slurry on the bonding layer to cover the whole leather surface with the waterborne polyurethane slurry, conducting drying,and carrying out leather polishing and other finishing processes to obtain the leather blank with a curtain coating layer, wherein the leather blank with the curtain coating layer can be directly usedas a curtain-coated composite leather product for the steering wheel. The appearance of the curtain-coated composite leather product for the steering wheel obtained by the method is approximately flawless; and the elasticity direction and the tearing strength of the leather product depend on the elasticity, the direction and the tearing strength of the leather blank, so the original characteristics of the leather are reserved to the maximum extent, the utilization rate of the leather is increased, the physical index of the leather is met, and the use economic value of the leather is greatly improved.
Description
technical field [0001] The invention relates to a preparation method of a steering wheel, in particular to a steering wheel curtain-coated composite leather and a preparation method thereof, belonging to the field of automobile parts. Background technique [0002] Car steering wheel is a device for the driver to control the driving direction of the car. With the development of the automobile industry, people pursue a pleasant driving experience. The plump, natural and elastic cowhide is widely used in car steering wheels, thus producing leather for car steering wheels. [0003] At present, the leather used for steering wheels in the market is generally dominated by the second layer of cowhide top layer. Because cowhide is a natural material, there are differences in parts and natural disabilities. etc.) and the uneven and inconsistent elastic direction, the tear strength is not up to standard, etc., which seriously affect the effective utilization of resources (the utilizati...
Claims
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IPC IPC(8): C14C11/00C14C13/00C09D175/04C09D7/65C09D133/04
CPCC09D175/04C14C11/00C14C11/003C14C13/00C09D7/65C08L97/02C08L33/04
Inventor 李亚飞陈奕陈波马玲
Owner 浙江铁凝汽车用品有限公司