Compression Molding Colored Pattern on Shoe Outsole
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Solution Overview
Problem
Current methods for creating multicolor patterns on rubber shoe materials result in color mixing at edges, peeling off after prolonged wear, and environmental pollution, leading to low production quality and unsustainability.
Innovation Solution
A method involving the manufacturing of rubber shoe materials, printing a colored pattern on a membrane material, and then combining the membrane with the rubber through one-time compression molding at 150° C to 160° C, ensuring deep integration of the pattern into the rubber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If printing ink is sprayed or printed onto rubber outsole surface and then a protective layer is applied, then multicolor patterns can be formed, but color mixing at edges occurs and patterns easily peel off after wearing
Solution Approach 1:
The patent merges the pattern layer and rubber substrate into a single integrated structure through compression molding. The membrane material with printed pattern is placed into a mold cavity and compressed with rubber material, causing the membrane to embed into the rubber and form an integrated piece that cannot separate, thus solving the peeling problem while maintaining pattern quality
Solution Approach 2:
The pattern is pre-printed on the membrane material before compression molding. This preliminary action allows the pattern to be precisely positioned and prepared in advance, preventing color mixing at edges during the molding process while ensuring the pattern is already fixed on the membrane before integration with rubber
2Manufacturing precision
If printing ink is sprayed or printed onto rubber outsole surface, then multicolor patterns can be formed, but environmental pollution occurs
Solution Approach 1:
The patent replaces the chemical printing process (spray printing with ink and protective coating) with a mechanical embedding process through compression molding. The pattern is transferred to the rubber surface through physical compression and embedding of the membrane material, eliminating the need for chemical inks and protective coatings that cause environmental pollution
3Manufacturing precision
If multiple processing steps are used to create patterns on shoe materials, then pattern quality can be improved, but processing complexity increases
Solution Approach 1:
The patent combines multiple processing steps (pattern printing, protective coating application, and pattern attachment to rubber) into a single compression molding operation. The membrane with pre-printed pattern is placed in the mold and compressed with rubber in one step, achieving deep embedding and integration without requiring separate processing steps for each function
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method effectively prevents paint peeling off and color migration, enhances the visual quality and durability of the shoe outsole, and is environmentally friendly with no pollution caused during the process.
Implementation Method 1
carrying out compression mold at temperature between 150° C. and 160° C. to fuse the membrane material into the rubber shoe material
Implementation Method 2
carrying out compression mold at temperature between 150° C. and 160° C. to fuse the membrane material into the rubber shoe material
Data Source
AI summary
This disclosure relates to the technical field of shoe material processing, and in particular to a method for processing a colored pattern on a shoe outsole material. The colored pattern is printed on a fiber membrane, and the membrane material printed with the colored pattern and a manufactured rubber shoe material are then placed in a compression mold to combine them totally to achieve good quality. This disclosure can make any design pattern without limitation and effectively avoid paint peeling off and color migration issues. Moreover, as the processing process is implemented by compression molding, it causes no pollution and is environment-friendly.