Mass production of in-mold decoration without compromising quality, even with carbon-neutral recycled PCs.
As part of the product's carbon neutrality efforts, the use of recycled resin (PCR-PC) is required; however, there were concerns about its impact on the flowability and transfer quality specific to in-mold forming, making it difficult to balance environmental considerations with mass production quality. We explored and selected suppliers of PCR-PC resin suitable for in-mold forming and optimized the molding conditions (temperature, pressure, filling speed). After evaluating the materials (flowability, transfer quality, appearance quality) and confirming compatibility with the foil, we established a manufacturing system that simultaneously achieves mass procurement of environmentally friendly products and maintains in-mold quality with PCR-PC resin. We support decorative molding that meets sustainability requirements.
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basic information
【Main Technologies and Methods】 - Material evaluation of PCR-PC resin (flowability, transfer quality, appearance quality) - Optimization of molding conditions (temperature, pressure, filling speed) - Compatibility verification with foil
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Applications/Examples of results
【Target Industries】 Heating devices, smartphones, home appliances 【Target Application Examples】 - Enclosures requiring environmental compliance - General panel components 【Achievements】 Secured mass procurement capability for environmentally compliant products. Achieved in-mold quality maintenance with PCR-PC resin.
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Company information
**About Yoshida Techno Works** We are the world's first manufacturer to commercialize in-mold transfer molding, which utilizes plastic molding and decoration technology cultivated through cosmetic container manufacturing, allowing for simultaneous molding and transfer decoration. **Key Technologies** - Double in-mold molding that performs simultaneous decoration on both sides of the product - Hybrid molding that combines sheet inserts with in-mold techniques - Glass insert in-mold (GIM) molding that inserts reinforced glass into the mold, allowing for integrated molding of resin frames and decoration - Two-color in-mold molding that combines rotational two-color molding with in-mold transfer - Composite technology that integrates metal (such as SUS sheet metal and nuts) with in-mold molding - Real material (natural wood, fabric, synthetic leather, etc.) insert molding - Out-mold deep drawing decoration method (VSS) compatible with metal, glass, and resin