Handling method of non-thermoplastic soft foaming middle sole of shoe
A non-thermoplastic, processing technology, applied in footwear, other household appliances, household appliances, etc., which can solve the problems of combining foams, uneven surfaces, and difficult spraying
Inactive Publication Date: 2008-08-27
郭讃兴
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Problems solved by technology
[0002] Non-thermoplastic flexible foam is difficult to spray because of its water absorption or uneven surface. Especially in the footwear market, non-thermoplastic flexible foam, which is originally soft and light in specific gravity, is a good material for water-related activities, but due to its non-thermoplastic The microporosity of soft foam products makes it easy to absorb water, and it is uncomfortable to wear, or the unevenness of the microporosity makes the surface not smooth and bright, so many manufacturers give up this good material that is soft and not easy to deform.
[0003] The current treatment method for non-thermoplastic foams is to use rubber to foam in the mold, that is, to pre-attach to a single-surface mold and then form it, but this may change the hardness or water resistance of the product. Foam products will have deformation problems during spraying, coating, dipping, and brushing under high adhesion requirements. Even if heat shrinkable film is used as the surface coating, it cannot be combined with the foam because of no adhesion. So it is not accepted by the market
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[0014] The specific implementation plan for coating the base film and shaping is as follows:
[0015] In the production process, the inner surface of the mold is first covered with a base film, and the shaping element can be placed before or after foaming, so the size of the finished product can be controlled in advance; according to the needs of the shoe shape, the shaping element can be borrowed from the original shoe making In the process, the reinforced midsole plate is pasted on the base film or inserted with iron wire or the like, and is removed after forming.
[0016] Non-thermoplastic foams are divided into out-of-mold foaming and in-mold foaming.
[0017] like figure 2 The out-of-mold foaming method is shown: the glue is a latex (LATEX) foam, and the base film is first attached to the mold, and then the glue is poured into the mold.
[0018] like image 3 The in-mold foaming method is shown: the glue is polyurethane (POLYURETHANE), and the base film can be placed ...
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The present invention discloses the treating process of one middle shoe sole of non-thermoplastic formed material, and aims at making the non-thermoplastic formed middle sole connecting no water while maintaining the softness and suiting for various grain structure and outer painting. The treating process of the non-thermoplastic formed soft product includes constituting one base film in the mold, setting forming element to prevent deformation in subsequent processing, forming to shape, and final spraying or painting colors or printing various patterns.
Description
technical field [0001] The invention relates to a processing method for a non-thermoplastic soft foamed shoe midsole, and belongs to the field of shoe sole processing. Background technique [0002] Non-thermoplastic soft foams have water absorption or surface unevenness and are difficult to spray, especially in the footwear market, non-thermoplastic soft foams that are originally soft and light in specific gravity are good materials for water-related activities. The microporosity of soft foam products makes it easy to absorb water, and it is uncomfortable to wear, or the unevenness of the microporosity causes the surface to be not smooth and bright, so many manufacturers give up this good material that is soft and not easily deformed. [0003] The current processing method of non-thermoplastic foam is to use rubber skin to foam in the mold, that is, it is pre-attached on a single-surface mold and then molded, but this may change the hardness or water resistance of the produc...
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IPC IPC(8): B29D35/14
Inventor 郭讃興
Owner 郭讃兴