TW201322937A - Vamp material - Google Patents

Abstract

A vacuum forming method for a leather product, comprising the following steps: making a mold; heating a raw material of the leather product to a predetermined temperature and placing the raw material on a surface to form a pattern on the raw material, the pattern formed on the raw material corresponding to a pattern of the mold surface, wherein the raw material is disposed under a vacuum forming condition; and cooling the raw material of the leather product for making the leather product; wherein the predetermined temperature is between 150 DEG C to 200 DEG C; the vacuum forming condition is between 350mmHg-700mmHg for a vacuum degree. The present invention provides an easy manufacturing technique, which uses an easy-to-produce mold to form the leather product in one process, thereby providing the leather product with high emulation and high production efficiency.

Description

Upper material

The invention relates to a shoe upper material, belonging to the technical field of leather product processing.

Leather shoes are now an indispensable element in people's daily work and life. Consumers not only require beautiful appearance but also strong and durable. At the same time, if the production cost is low, it will bring lucrative profits to the manufacturers, whether for consumers or It is the benefit of the manufacturers. The existing leather shoes are usually processed by pressing different shapes and patterns on the leather material, and the raw materials are cut and then the parts are sewn together. Especially in the case where the upper pattern is relatively complicated, the existing production method, whether manual or equipment, has high input cost and low production efficiency. In addition, since the pattern is usually press-formed by an embossing die, the embossing die generally includes a steel wheel, a rubber wheel, a nickel wheel, and the like. The finished product processed by this processing method is limited to the ordinary grain, and can not produce fine texture, the embossing effect is general, the texture is shallow and unstable, and the simulation is poor. Due to the high cost of the mold and the complicated processing process, the cost of the product remains high.

The technical problem to be solved by the present invention is to provide an upper material for the deficiencies of the prior art, which has a simple processing process, one molding, and simulation. High performance, low cost and high production efficiency.

The technical problem to be solved by the present invention is achieved by the following technical solutions:

A shoe upper material comprising a raw material layer, wherein a raw material layer is provided with a vacuum forming layer, wherein an upper surface of the plastic layer protrudes from an upper surface of the raw material layer; It is animal leather, artificial leather or composite leather, and its thickness is 0.4-3.0 mm.

In order to improve the toughness of the upper material, a base fabric is provided below the raw material layer, and the base fabric has a thickness of 0.1 to 2.8 mm.

Depending on the size of the raw material, the blister layer may be integrally molded on the upper surface of the raw material layer; and may further include a plurality of portions respectively formed on the upper surface of the raw material layer by suction molding.

According to actual production needs, the plastic layer may include one or a combination of one of the upper inner waist, the outer waist of the upper, the toe of the upper, the upper of the upper or the back of the shoe.

In order to make the upper pattern more aesthetically pleasing, the inner waist of the upper and the outer waist surface of the upper are formed by one or more pattern regions.

When the raw material layer is animal leather, the animal leather includes cowhide, sheepskin or pig skin.

When the raw material layer is an artificial leather, the artificial leather includes polyvinyl chloride or polyurethane.

When the raw material layer is a composite leather, the composite leather includes an animal leather layer and a resin layer, and the raw material of the resin layer is one of polyvinyl chloride or polyurethane or polyethylene or thermoplastic polyurethane elastomer rubber.

The resin layer is a coating layer coated on the animal leather layer by extrusion coating as needed; or the resin layer is a sheet composited on the animal leather layer by roll pressing; or The resin layer is a coating that is applied to the animal leather layer by spraying, brushing or roll coating; or the resin layer is a coating that is applied to the animal leather layer by screen coating.

In summary, the upper material provided by the invention has simple processing technology, one-time forming, high simulation, low cost and high production efficiency.

The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Figure 1 is a schematic view of the overall structure of the present invention. As shown in FIG. 1, the present invention provides an upper material comprising a raw material layer 100, on which a plastic layer 200 formed by vacuum forming is provided, and the upper surface of the plastic layer 200 is convex. Out of the upper surface of the raw material layer 100. The raw material layer 100 is animal leather, artificial leather or composite leather, and has a thickness of 0.4-3.0 mm. In order to improve the toughness of the upper material, a base fabric (not shown) may be provided under the raw material layer 100, and the base fabric has a thickness of 0.1 to 2.8 mm.

When the raw material layer 100 is animal leather, the animal leather includes cowhide, sheepskin or pigskin. When the raw material layer 100 is an artificial leather, the artificial leather includes polyvinyl chloride or polyurethane. When the raw material layer 100 is a composite leather, the composite leather includes an animal leather layer and a resin layer, and the raw material of the resin layer is polyvinyl chloride, polyurethane or polyethylene or thermoplastic polyurethane. One of the elastomeric rubbers. The resin layer is a coating layer coated on the animal leather layer by extrusion coating as needed; or the resin layer is a sheet composited on the animal leather layer by roll pressing; or The resin layer is a coating that is applied to the animal leather layer by spraying, brushing or roll coating; or the resin layer is a coating that is applied to the animal leather layer by screen coating.

The blister layer 200 may be integrally molded on the upper surface of the raw material layer 100 according to the size of the raw material; or may include a plurality of portions respectively formed on the upper surface of the raw material layer by suction molding. According to actual production needs, the plastic layer 200 may include one or more of the upper inner waist 201, the upper outer waist 202, the upper toe piece 203, the tongue face 204 or the rear body piece 205. combination. That is to say, there may be only one complete upper inner waist 201 or upper outer waist 202 on a piece of raw material; or as shown in FIG. 1, the plastic layer 200 is divided into a plurality of parts, respectively including an upper inner waist 201 and an upper. The outer waist 202, the upper toe piece 203, the tongue face 204 or the rear body piece 205; or, for smaller sized materials, it is even possible to dispense only a plurality of tongue faces 204 on a single piece of material. Producers can rationally allocate and set up according to actual needs and on the premise of saving raw materials.

In order to make the upper pattern more aesthetically pleasing, the upper inner waist 201 and the outer outer waist 202 are surface-molded with one or more pattern regions 210. The pattern area 210 may include various patterns such as pinhole pattern, linen pattern, sheepskin pattern, cowhide pattern, and pebbled pattern. The pattern or pattern on the mold may be one type or multiple types, and may be set as needed. A variety of patterns or patterns can be set on the same plane, or can be set on different planes, uneven, patchwork. This raises the pattern The stereoscopic effect and simulation, the visual effect is good. Regardless of which pattern or pattern is used, the blister layer 200 on the raw material layer 100 is formed once after being blister-coated, eliminating the need for multiple processing steps such as cutting and sewing in the prior art, saving time and effort, and being convenient to operate. The cost is low, the shipment is fast, and the production efficiency has been greatly improved.

The upper material provided by the present invention is processed as follows:

First, the mold needs to be produced. The mold may be a ceramic blister mold or a metal mold having gas permeable properties, as needed. The ceramic blister mold is prepared using a mixture comprising epoxy resin and quartz sand. Due to the high-porosity physical properties of quartz sand, in the process of vacuum blistering, the blistered leather/leather raw material fits snugly on the surface of the ceramic blister mold, and the force is uniform, and the pattern formed on the blister layer 200 High degree of simulation. The metal mold having the gas permeability is made by microporous on the surface of the metal mold, or is made of a gas permeable metal, and is also for achieving the best plastic absorbing effect.

Secondly, the raw material of the leather/leather product is heated to a specified temperature, placed on the surface of the mold, and stayed under vacuum absorbing conditions to form a pattern corresponding to the surface of the mold on the surface of the raw material of the leather/leather product. The specified temperature is: 150 ° C - 200 ° C; the vacuum absorbing condition is: 350 mmHg - 700 mmHg vacuum range. In order to meet different production needs, the mold may be arranged in a flat plate type, and the residence time of the vacuum blister is 2-10 seconds; or the mold may be arranged in a roller type or a moving speed of the roller. It is 10-35 m/min; the mold setting method includes: one of a flat type or a roller type, or a combination of a flat type and a roller type; use. Regarding the manufacturing method of the mold, it can be referred to the contents disclosed in the patent document of CN1236763A.

Finally, the raw material of the leather/leather product is cooled and formed into a leather/leather product for use.

In summary, the upper material provided by the invention has simple processing technology and one-time forming, because the working principle is adsorption molding, and the finished product of the upper material is not thick; the finished product pattern is realistic and the simulation is high; the production cost is Low cost and high production efficiency, it is very popular in the market.

100‧‧‧Material layer

200‧‧‧ plastic layer

201‧‧‧The inner waist of the upper

202‧‧‧ upper waist

203‧‧‧Shoe toe piece

204‧‧‧sole

205‧‧‧Shoe back

210‧‧‧pattern area

Figure 1 is a schematic view of the overall structure of the present invention.

Claims (10)

An upper material comprising a raw material layer, wherein a raw material layer is provided with a plastic layer formed by vacuum forming, an upper surface of the plastic layer protruding from an upper surface of the raw material layer; The raw material layer is an animal leather, an artificial leather or a composite leather having a thickness of 0.4 to 3.0 mm. The upper material according to claim 1, wherein the raw material layer is further provided with a base fabric having a thickness of 0.1 to 2.8 mm. The upper material according to claim 1, wherein the blister layer is integrally molded on the upper surface of the raw material layer. The upper material according to claim 1, wherein the blister layer comprises a plurality of portions respectively formed by being molded on the upper surface of the material layer. The upper material according to claim 3 or 4, wherein the blister layer comprises an upper inner waist, an upper outer waist, a upper toe piece, and a tongue surface. Or one or a combination of one or more of the back of the shoe. The upper material of claim 5, wherein the inner waist of the upper and the outer waist surface of the upper are integrally formed with one or more pattern regions. The upper material according to claim 1, wherein the animal leather comprises a cowhide, a sheepskin or a pigskin. The upper material according to claim 1, wherein the artificial leather comprises a polyvinyl chloride or a polyurethane. The upper material according to claim 1, wherein the composite leather comprises an animal leather layer and a resin layer, and the raw material of the resin layer is polyvinyl chloride or polyurethane, polyethylene or thermoplastic polyurethane elastomer. One of the rubbers. The upper material according to claim 9, wherein the resin layer is a coating layer coated on the animal leather layer by extrusion coating; or the resin layer is composited by roll pressing. a sheet on the animal leather layer; or the resin layer is a coating coated on the animal leather layer by spraying, brushing or rolling; or the resin layer is covered by a screen coating method A coating on the leather layer of the animal.