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                Home > News > Industry news

                IMD process and decorative layer that do not affect recycling

                作者: 发表日期:2019年12月26日 点击次数:469

                Plastics are widely used in various fields such as economics, national defense construction, and people's livelihood, because of its low cost, easy processing, corrosion resistance, and recyclability. Since the invention of plastic at the end of the 19th century, more than 8 billion tons of plastics have been produced worldwide, and more than 50% of it has been discarded or incinerated. Therefore, as the consumption of plastics continues to increase, the environmental problems caused by plastic waste continue to worsen.

                To solve or mitigate environmental pollution problems, we need to follow the principle of circular economy development for the plastic processing industry, from the production of plastic products to use, collection, classification, recycling and reuse, and finally back to production settlement. This closed loop will be an effective measure to solve the environment pollution problems. Therefore, in addition to subsequent sorting and recycling, if from the beginning of product design, it is designed in a recyclable way, it will greatly help the development of circular economy.


                At the beginning of the design of plastic products, in addition to the selection of recyclable raw materials, the surface decoration process will also affect the recyclability of plastics. Therefore, Kurz, as the world's leading hot stamping and coating technology company, conducted research on the recycling of decorative plastics. By reworking and decorating with the recycled material of IMD on K2019, Kurz proved that surface coating does not affect the mechanical recyclability of plastic parts.?
                In exhaustive tests, Kurz compared plastic recovered from plastic parts with and without decorative coatings. First, Kurz tested plastics with different recycled content, and then recycled the previously recycled plastic several times. The result is obvious: Recyclable plastics decorated with extremely thin Kurtz coatings can be recycled again under various test conditions.
                To determine the possible impact of the decoration process, Kurz tested components produced and decorated through two different injection molding processes, i.e. the IMD (in-mold transfer) process and the IMD Varioform (in-mold Transfer modification process, developed by Kurz).
                In the IMD Varioform process, parts can be decorated, formed, injection molded, and stamped in one step within the injection mold cavity. In the IMD process, only the decorative coating is transferred to the part, but in the IMD Varioform process, the coating foil carrier also remains on the part. Therefore, the choice of foil carrier must not only be maked based on technical standards, but also the injection molding material, to ensure the recyclability of plastic parts.?


                IMD process and decorative layer that do not affect recycling.

                This year, the on-site processing and decoration of recycled materials was demonstrated on the K show. At Engel's booth, Kurz's patented IMD Varioform process decorated the components containing recycled materials in high-quality through integrated forming, injection molding, decoration, and pressing operations.?

                The entire recycling process was also demonstrated: recycled plastic from used/wasted parts was mixed with new materials, and then processed into new plastic decorative parts via an Engel victory 1060/300 injection molding machine with the IMD Varioform process.
                The production of this three-dimensional part shows that even complex shapes can be decorated by this roll-to-roll process. The production is also unique in that it uses MuCell technology to foam the mixed plastic (new material with recycled materials), making the part weight lighter, the design of the part simplified, and the final part produced without dents. At the same time, this application also demonstrates how this one-step process for decorating complex shaped parts can flexibly integrate lightweight structures and recycling technologies.




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