Glue-free foaming sole and manufacturing method thereof

Abstract

The invention belongs to the field of foaming sole manufacturing processes, and particularly relates to a glue-free foaming sole which comprises a wear-resistant layer bottom piece, a thin film layeris bonded to the wear-resistant layer bottom piece, a foaming layer is wrapped in the thin film layer, and the thin film layer is of a double-layer structure of an aliphatic TPU layer or an aliphaticTPU bottom layer composite aromatic TPU surface layer and other common TPU surface layers. In addition, the invention correspondingly provides a corresponding manufacturing method. According to the invention, the aliphatic TPU film is adopted, has very high viscosity after being heated and softened, can be directly and stably bonded with the sole without glue, effectively avoids the pollution caused by using glue as a bonding agent, is environment-friendly, labor-saving and convenient to popularize and apply, and has remarkable substantive features.

Description

technical field [0001] The invention relates to the field of manufacturing technology of foamed shoe soles, in particular to a glue-free film-absorbing polyurethane shoe sole and a manufacturing method thereof. Background technique [0002] Shoes are the necessities of everyone's life. In consideration of comfort, environmental protection, health and other aspects, people in life are more willing to choose shoes with better styles and materials. Good-looking shoes can improve personal image and life taste. The quality of the shoe material can have an impact on the performance of athletic ability, and it will also have an impact on physical health. The quality of the shoe material can also determine how much physical energy people consume in the same exercise intensity. [0003] At present, the production steps of the foamed soles on the market are generally to put the processed sole film (such as the wear-resistant layer of the sole) into the shoe mold, then brush or spray g...

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Problems solved by technology

[0004] In order to solve the problem of using glue to bond the sole and the film wrapped with foam material above the sole in the production process of general foam soles, it is necessary to provide ventilation equipment to discharge the odor of the glue, and it takes time and effort to clean up the overflowing glue, which is not conducive to environmental protection and reduces production costs. problem, provide glue-free foam sole and its production method

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