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(I) IMD definition
IMD is a technique in which a printed decorative sheet is placed in an injection mold, and then the gum is injected on the back surface of the molded sheet to bond the resin and the sheet together to form a solidification molding. IMD is a technology for insert molding at the same time of injection molding. The product is integrated with the decorative substrate, and the three-dimensional molded products can be decorated and printed to make the product both decorative and functional effect.
(2) IMD market:
1. The world's four major ink manufacturers attack the IMD industry, develop professional IMD inks, and continue to exhibit in the mainland.
2. The world's four major film manufacturers attacked the IMD industry. Mitsubishi's previous two production lines have now increased to four.
3. International large enterprises attacked the IMD industry. Foxconn’s previous department now increases production by 2 departments.
4. Some printing industry giants have invested in IMD full process.
(III) Comparison of IMD and IML, IMR and traditional products
Traditional injection molding products:
1, the need for secondary processing such as painting or plating (increasing costs and causing pollution)
2, ink, etc. on the surface of the product, if it takes a long time, it will be ground or scratched (to reduce the overall quality and appearance of the product)
3, follow-up work after injection molding, resulting in a drop in yield, etc.
IMD in-mold decoration process products:
1, reduce costs and current work. In the IMD process, only one set of molds needs to be opened. Unlike other old alternative processes, multiple sets of molds are required to reduce system cost and inventory cost.
2, process simplification. Once there is a method of injection molding, the molding and decoration can be achieved at the same time, reducing costs and working hours, and stable production.
3, product stability and durability. Since the ink is between the sheet and the injection plastic, the three-dimensional molding increases the degree of freedom of design. The graphic and color are in the plastic interlayer, which is resistant to abrasion and corrosion, and the color is bright, and the printing pattern can be changed at any time without changing the mold.
4, 3D complex shape design and diverse style. Patterns, colors, fonts, and LOGOs are screen-printed or screen-printed on the carrier surface of the carrier. They are formed into 3D shapes and can be used to create metal plating or special patterns for natural materials. Some effects are not achieved by electroplating.
5, high yield. The high pressure molding has only the lower mold and no upper mold. It does not touch the sheet during the molding process and does not contaminate the sheet.
6, suitable for 3D products and high tensile products. The height that can be stretched by high pressure molding is 25 cm.
7, the film thickness changes without changing the molding die. The film sheet can be leather, velvet, etc., to improve the grade and quality of the product.
IMR (ie Japan's IMD) transfer:
1, the product surface does not have a protective mold, can not prevent corrosion and scratch.
2, the development cycle is long. The technology is on the Japanese side, and the proof is at least 1000 meters. The mold is expensive and the technology does not output. Sheets and molds must be imported from Japan.
3, can only be made flat or slightly curved surface decoration.
4, wasting resources. After use, the sheet is difficult to recycle, etc.
IMD products:
1, make cooperation 2D or low tensile products. Such as cell phone lenses or control panels.
2, the yield is difficult to control, the influence of human factors is relatively large, and the temperature is difficult to control.
3, male and female molds, damage the surface of the sheet during molding.
4, film thickness changes need to modify the molding die, expensive, R angle molding is poor, easy to pull the sheet, etc.
IMD advantage
1. Product stability: correct coloring for product consistency and standardization
2, product durability: through the special treatment of COATING film protection, can provide better surface wear and chemical resistance
3, 3D complex shape design: the application of the excellent stretchability of the film, can smoothly achieve the required product complexity, open design requirements
4, diversified style: can create metal plating or natural material special style according to customer needs
5, process simplification: through one injection molding method, the molding and decoration at the same time, can effectively reduce costs and working hours, can provide stable production
6. Reduce costs and working hours: Only one set of molds is needed in the IMD process. Unlike other old replacement processes, multiple sets of fixtures are required to remove the manpower and working hours of one operation procedure, reducing system cost and inventory cost.
IMD substance;
IMD is actually a product that is formed by punching and cutting a printed film into a mold cavity and then molding it. It is a combination of printing, molding, molding and injection molding technology, which will be used in combination of plastic sheets, inks and plastic resins. The injection molding resin is combined with the ink layer on the back side of the film. The panel image and logo are placed between the film and the injection molded resin. The graphic and logo are not worn by friction or time.
(4) IMD customer objects and application areas:
Home appliance industry: control panel for rice cookers, washing machines, microwave ovens, air conditioners, refrigerators, etc.;
Automotive industry: instrument panel, air conditioning panel, interior parts, lamp housing, logo, etc.;
Electronics industry: MP3, MP4, computer, VCD, DVD, electronic notebook, camera and other decorative shells and signs;
Computer industry: keyboard, mouse face shell;
Communication industry: mobile phone buttons, housings, window lenses;
Other industries: cosmetic boxes, gift boxes, decorative boxes, toys, plastic products, sports and leisure gear, etc.
(V) Prospects for the development of IMD technology
At present, IMD in-mold decorative inlay molding technology is widely used in communications, home appliances, electronics, automotive, instrumentation, instruments, medical devices, toys, cosmetics and other industries, is a new plastic decoration technology. It can be changed in three dimensions, increase the freedom of the designer, and can design a variety of personalized styling products to meet the needs of the development of the times.
IMD technology can realize injection molding, decoration integration, one-time completion, and can make various special effects, such as: button blister, metal mirror or matte surface, metal wire drawing, back light transmission, bump pattern, etc. Etc., very decorative and functional.
IMD technology is the best new technology to replace plastic painting and electroplating. It can reduce the subsequent processing steps of injection molding, promote and popularize in the plastics industry, and truly realize the significance of energy saving and environmental protection. It will bring huge economy to society and enterprises. Benefits and environmental benefits.
Due to the decorative functionality of the IMD product, the graphic and color of the injection molded parts are molded once in the mold, which reduces the post-processing. In addition, the IMD stereo forming increases the freedom of design, graphics and color. In the plastic interlayer, it is resistant to abrasion and corrosion, and the color is bright, and the printed pattern can be changed at any time without changing the mold.
In summary, IMD technology not only improves the quality of products, but also expands the space for product innovation and enhances the added value of products. Therefore, IMD is a development project with great global potential.