A kind of rubber adhesive and the technological method that this rubber adhesive is applied to eva shoe sole bonding

Abstract

The present invention relates to a rubber adhesive and a process method for applying the rubber adhesive to EVA sole adhesion, wherein the proportions of the components of the rubber adhesive in percentage by weight are: 60％-65％ of an elastic resin, 3％-6％ of a naphthenic oil, 8％-12％ of an EVA, 8％-12％ of an artificial rubber, and 12％-18％ of white carbon black. The process method comprises formulating and evenly mixing the rubber adhesive and a rubber according to a ratio of 6-10 : 90-100 to prepare a rubber bottom sheet, and then placing the rubber bottom sheet and an EVA insole primary blank together into a die for die-press forming to form an EVA sole finished product. The present invention has the advantages of being cost-saving, time-saving and labour-saving.

Description

technical field [0001] The invention relates to an adhesive and a method for using the same, in particular to a rubber adhesive in the EVA sole production process and the EVA sole bonding process field using the rubber adhesive. Background technique [0002] At present, in the field of shoemaking, the traditional sole production method usually includes three major steps: rubber sole production process, EVA midsole production process, and rubber sole and EVA midsole bonding process. In the first step, the production process of the rubber bottom needs to open the rubber mold first, then put the rubber bottom ingredients into the internal mixer and mix them according to the required thickness to produce the rubber bottom sheet, after appropriate cutting, put it into the rubber mold and press it for vulcanization Trim the edges to make the finished rubber bottom, then roughen the rubber bottom or wash it with water, apply glue and bake it in the oven; in the second step, the EVA...

AI Technical Summary

Problems solved by technology

[0003] Now the traditional EVA sole production process has the following defects: 1. The traditional process requires a total of three sets of molds, and the cost of opening molds is relatively considerable. If the number of molds can be saved as much as possible in the production process, not only can the process be streamlined, but more importantly The most important thing is that it can save production costs; 2. In the traditional process of rubber sole production process and EVA midsole production process, it is necessary to roughen the finished product, wash it, apply glue, and pass the oven. The process is cumbersome; 3. In the rubber sole Vulcanization and trimming are required during the production process, which will cause waste of rubber scraps