Application of the hottest transfer technology

Application of cold transfer technology

using ultraviolet light curing adhesive can easily transfer the digital graphics and texts printed by inkjet printer to metal planes such as crystal, glass, stone, wood, acrylic, ceramic tiles and stainless steel aluminum. There is no pixel loss in the transfer process, that is, what effect the inkjet printer can print, UV transfer can get. Due to the continuous ink supply system appearing in the past two years, the cost of printer color printing has been reduced by more than 90%. Therefore, UV cold transfer printing shows a rapid development trend in the production of personalized or batch products. It is conceivable that the fields involved in silk printing, metal coating, decorative advertising, PCB Printing, process picture frames, handicrafts and toys, as well as the marking of various products and plates are wide

here are some application methods of cold transfer technology: 1 Crystal image making crystal image, also known as crystal photo, is a popular personalized decorative handicraft at present. The basic process flow is:

1 Choose the crystal white embryo you need. At present, there are domestic manufacturers specializing in the production and sale of processed crystal white embryos of various shapes, which are generally concentrated in the Pujiang area of Yiwu, Zhejiang Province. Every year, the cost of infrastructure protection and water and electricity transfer in the worker's residential area is up to 30, otherwise the machine will be damaged and the users will be injured. The price of a set ranges from a few yuan to dozens of yuan

2. Select the film that can be transferred. This kind of film is generally composed of a thin water absorbing film coated on PET (polyester) film, which is a double-layer structure, and the printed pattern can only be printed on the surface of its water absorbing film. A good film is transparent, bright and smooth. The coating is uniform, does not stack ink and is easy to peel off. At present, the film specification is generally A4

3. Choose the UV shadowless adhesive for transfer, namely UV curing adhesive. The shadowless adhesive with good quality has low solubility to the water-based ink on the pattern, but at the same time, it can maintain its equivalent bonding strength. On the other hand, it must also have equivalent bonding strength to the crystal (or glass). Otherwise, in the grinding and polishing process of the subsequent process or after the product is produced for a period of time, water will enter and there will be spots, cracks and snowflakes

4. Choose the appropriate inkjet printer and its printing ink. In order to save printing costs, the most commonly used printer is Epson (such as the maximum experimental force 5kn 20kn830u) printer, because the continuous ink supply system supporting Epson printer is the most in the market. The current market price of 830u continuous ink supply system is about 200 yuan/set. General water-based inks are also suitable for UV cold transfer, but the printing cost is high

5. Selection of light source and light curing method formal UV lamp, ordinary mercury lamp (mercury lamp) and sunlight can meet the bonding requirements of crystal photos, but if efficiency is required, the stronger the UV light source is, the faster the curing speed is (the higher the temperature of the surface of the bonded object is, the faster the curing speed is.) The closer the illumination distance is, the faster the curing speed is. 9. During the experiment, but at the same time, it should be noted that if the curing speed is too fast, cracks and spots may occur in the adhesive layer. Therefore, before batch use, relevant tests should be carried out according to the local natural environment and conditions at that time, as well as the proficiency of construction personnel, in order to determine the best operating procedures

6. Detailed explanation of transfer operation

1) for large-area crystal photos, the glue is generally applied to the crystal (or glass) film ready for printing in a meter shape, the film with printed pictures and texts is paved, and the glue is driven away from all sides with the mimeograph printing roller or rubber scraper. After the glue is covered with pictures and texts and the bubbles are exhausted, it is placed under the mercury lamp of W for irradiation for minutes, and the transparent film (PET film) is removed and carefully placed aside for use, Transfer completed. This process can be completed under the outdoor natural light source

2) apply glue again on the crystal (glass) that has transferred the image pattern, cover another crystal (glass) on the glue, remove the bubbles, and then put it under the mercury lamp again for curing minutes. Take it out and place it for dozens of minutes before grinding

3) if only one piece of crystal white embryo is used to make a crystal image, then the above process 2) cover another piece of crystal (glass) on the glue liquid, instead, use process 1) cover the removed PET film on the glue liquid, scrape the under film glue liquid with a rubber scraper, and then remove the PET film after exposure. However, the UV shadowless adhesive applied in this process should have the shadowless adhesive with high hardness, water resistance, solvent resistance and good scratch resistance after curing, and the shadowless adhesive in process 1) cannot be used

the general operation procedure is: to crystal (glass) Glue on the white embryo --- lay the film with the image printed by the inkjet printer on the glue liquid --- use the rubber scraper to disperse the glue liquid under the film so that it is evenly filled with pictures and texts while exhausting bubbles --- place it under the 250 Watt ordinary mercury lamp and take it out after light curing for minutes --- cut the film outside the embryo with scissors close to the edge of the crystal embryo --- carefully and completely remove the PET film from the newly cut place by hand --- repair the flash with a blade --- glue on the crystal pattern --- Cover another piece of glass (crystal) - shine for minutes - let it cool for dozens of minutes - Polish and polish. 2. Transfer digital graphics and text on mirrors, ceramic tiles, wood, stainless steel, aluminum sheets, acrylic and other materials. Except that acrylic needs to select special UV glue for transfer, other operations are the same as the above crystal digital graphics and text transfer

1. This product is a solvent-free and environment-friendly one component transparent and shadowless adhesive, which can be quickly solidified into a film under the irradiation of ultraviolet light source

2. This product has good waterproof and solvent resistance

3. This product has good wear resistance, high hardness and good scratch resistance

4. This product has very low requirements for light source, and can be cured under ordinary outdoor natural light