Development of Three-dimensional In-mold Decoration Technology Combining Roll-to-roll, Thermoforming and Injection Molding

• Main Authors: Ying-Chang Chen, 陳穎昌
• Other Authors: Cheng-Hsien Wu
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/10569601242219619893

碩士 === 國立高雄應用科技大學 === 模具工程系 === 99 === IMD(In-Mold Decoration) makes melt in filling process to form with pattern structure of plastic and simplify the process. It`s satisfied to require mass production by injection molding technology.IMD technology are classified to three part that is IMR (In-Mold Roller),IML (In-Mold Label ) and IMF (In-Mold Forming). IML are used to rules or simple flat pieces of plastic surfaces. IML are used to mass production but small changes in curvature sample. Lastly IMF are used to sample that is few, exquisite, varied and big Curvature.First IMF`s steps used micro-structure or pattern printed copying to the film, then through hot pressed form film of structure. Lastly using forming film put into injection cavity to IMD process by injection molding. This technology can breakthrough traditional design of the injection and improve the appearance of sample , increased durability, etc. IMF process products affected by shape, mold design, the impact of parameters come up the case of rupturing, stress concentration or wrinkled that resulting in poor appearance of the product. In this study, UV-cure embossing process, thermoforming and injection molding design, process planning and product testing. Traditions IMD only apply to plane or on the surface relaxation if the curvature is bigger that it is easy to cause wrinkled or structural break. IMF`s molding is considerable different with tradition molding, for such a process must be to design a series of mold. Mold design and produce of IMF can`t effectively control the material deformation because the absence of IMF process flow analysis of plastic materials. Having to test mold many times and mold repair, to get the desired quality. The purpose of the study are IMF mold design and the use of UV-curable roll forming micro-structure, thermoforming and injection molding experimental analysis in the IMF process to discuss the effects of process parameters, the parameter optimization. Finally, the use of mold sensor discuss the effects of mold temperature, flow and pressure difference and scanning electron microscopy observation watching appearance, to find the best mold design and process design criteria.