Stereoscopic vamp ornament with density gradient and preparation method thereof

Abstract

The invention relates to a stereoscopic vamp ornament with a density gradient and a preparation method thereof. A foamed bottom layer covers and is adhered to the outer surface of a waterborne resin junction layer and a pre-mixing concave region is formed on the outer surface of the foamed bottom layer; a foamed color paste layer covers and is adhered to the outer surface of the foamed bottom layer and the inside of the pre-mixing concave region; the joint of the foamed color paste layer and the foamed bottom layer in the pre-mixing concave region has the density gradient. The preparation method comprises carrying out silk-printing and drying to form the waterborne resin junction layer, carrying out silk-printing and drying to form the foamed bottom layer and processing to form the pre-mixing concave region, carrying out silk-printing and drying to form the foamed color paste layer and enabling part of the foamed color paste layer to permeate into the pre-mixing concave region, and carrying out die-pressing foaming. According to the invention, the foamed color paste layer and the foamed bottom layer are partially bonded in the pre-mixing concave region and the joint has the densitygradient, so that bonding between a waterborne foamed oil layer and the foamed color paste layer is more tight and firm and difficult in causing delamination, and meanwhile, the stress between the foamed color paste layer and the foamed bottom layer in the pre-mixing concave region can be alleviated, and thus, a stereoscopic pattern layer has excellent properties of excellent tensile resistance and folding resistance, impact damping and the like.

Description

technical field [0001] The invention relates to the technical field of footwear products, in particular to a three-dimensional vamp veneer with a density gradient and a preparation process thereof. Background technique [0002] In the traditional shoe-making industry, in order to pursue the beauty of shoes or the display of trademarks, other pre-processed decorative pieces are placed on the surface of the base material by pasting or sewing: the peripheral edge of the decorative piece is sewn on the surface with sewing thread On the surface of the base material, this method has the following disadvantages, including: the structural stability after sewing is low, and because there is a certain gap between the periphery of the decorative piece and the base material, it is very easy to rub against other objects or be picked up or inserted into foreign objects. The trim and inner structure cannot be reliably fixed on the surface of the substrate if it is disassembled or caused un...

AI Technical Summary

Problems solved by technology

[0002] In the traditional shoe-making industry, in order to pursue the beauty of shoes or the display of trademarks, other pre-processed decorative pieces are placed on the surface of the base material by pasting or sewing: the peripheral edge of the decorative piece is sewn on the surface with sewing thread On the surface of the base material, this method has the following disadvantages, including: the structural stability after sewing is low, and because there is a certain gap between the periphery of the decorative piece and the base material, it is very easy to rub against other objects or be picked up or inserted into foreign objects. The decorative piece and the inner structure cannot be fixed on the surface of the base material because it is dismantled or caused unnecessary wear and tear; the decorative piece is attached to the surface of the base material by direct adhesive bonding, and its adhesive strength is insufficient, which is extremely easy to break away

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