Synthetic leather for children products and preparation method thereof

Abstract

The invention relates to synthetic leather for children products and a preparation method thereof. The synthetic leather comprises a base cloth layer, a PU bottom layer and a PU surface layer which are arranged in sequence, wherein the base cloth layer and the PU bottom layer are attached through a TPU bonding layer; the TPU bonding layer is prepared from TPU particles and an auxiliary agent; theauxiliary agent accounts for 0.05-0.5% of the total weight of the raw materials of the TPU bonding layer; the TPU particles are WHT-8170. According to the synthetic leather for the children products,the specific TPU particles are selected and matched with the auxiliary agent, the PU bottom layer and the base cloth layer are attached, and the formula of the PU bottom layer and the surface layer isoptimized, so that the prepared synthetic leather meets 24 requirements of PAHS environmental protection, the latest environmental protection requirement and the export requirement, can be used for exporting the children products, and reduces the production cost of the children products; and the synthetic leather also has the properties of high wear resistance, hydrolysis resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of synthetic leather, and in particular relates to a synthetic leather for children's products and a preparation method thereof. Background technique [0002] Common PU synthetic leather is commonly used in the field of children's products. It usually includes a PU composite layer and a base cloth layer composed of a PU surface layer and a PU bottom layer. The base cloth layer and the PU bottom layer are bonded by a water-based PU adhesive. However, most of the existing water-based PU adhesives have the problem of VOC volatilization. Therefore, it is difficult for the PU synthetic leather used in the existing children's products to meet the PAHS24 EU testing standards in terms of environmental protection, especially for children's products to be exported. Environmental protection requirements are very high. The existing PU synthetic leather cannot be used in export children's products because the environment...

AI Technical Summary

Problems solved by technology

[0002] The synthetic leather used in the field of children's products is currently commonly used ordinary PU synthetic leather, which usually includes a PU composite layer and a base cloth layer composed of a PU surface layer and a PU bottom layer. The cloth layer and the PU bottom layer are bonded by a water-based PU adhesive. However, most of the existing water-based PU adhesives have the problem of VOC volatilization. Therefore, the PU synthetic leather used in the existing children's products is difficult to achieve in terms of environmental protection. PAHS 24 EU testing standards, especially for children's products to be exported, the environmental protection requirements are very high. The existing PU synthetic leather cannot be used in export children's products because of environmental protection, but can only be used in environmental protection requirements. lower common children's products

The leather used in children's products that need to be exported is mostly made of silicone, but the price of silicone leather is expensive, resulting in high cost of exported children's products.

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