Introduction to thermal sublimation technology(2)
June 02,2022
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Thermal sublimation transfer paper
Thermal sublimation transfer is a new process that uses an ink-jet printer equipped with thermal sublimation transfer ink to print images such as portraits, landscapes and words on the thermal sublimation transfer ink-jet paper in the form of a mirror image, and then heats it to about 200 ℃ by the thermal transfer equipment, so that the thermal transfer ink on the thermal sublimation paper sublimates and infiltrates into the substrate, so that the color images on the paper can be realistically transferred to textiles, porcelain cups, porcelain plates, metal and other materials.
Heat sublimation transfer paper, which uses an ordinary inkjet printer to print the pattern on the heat sublimation transfer paper, and then transfers the pattern of the heat sublimation transfer paper to other media by heating (generally 150~180 degrees, heating for about 25 seconds, of course, depending on the material of the object to be transferred). This mainly controls the temperature and time of heating and the quality of printing, otherwise the effect is not ideal.
The ink-jet paper used for thermal sublimation transfer printing has no adhesive film on the surface of the substrate, so the hand feeling and visual effect of the pattern are far better than that of the method using ordinary ink and transfer paper. Its advantages of colorful, non fading, non cracking and good ventilation make the world of thermal transfer products popular. Photo banners, street lamp flags, webbing, handbags, bags, posters, hanging pictures, double-sided flags, clothing, ceramic tiles Glass stands out in the highly competitive market.
Sublimation ink
Heat rising ink, also known as heat transfer ink, the above two types are to make low-energy and easily sublimated disperse dyes into digital printing ink, which is printed on transfer paper. By heating, the image can be made into exquisite porcelain, metal, silk, chemical fiber cloth and other materials in a short time. It is very suitable for the market needs of personalized development and the requirements of environmental protection.
The cost of thermal sublimation is relatively high, so thermal sublimation ink is produced. The common continuous ink supply system is widely used to supply ink to inkjet printers. The common printing paper is used as the medium. After heating to a certain temperature and time, the pattern is transferred to other media (such as cotton, porcelain, etc.). Now this method is used a lot, but the quality of thermal sublimation ink needs to be improved.
Thermal sublimation inks are mostly made up of disperse dyes used in textiles. Disperse dyes are widely used in textile printing and dyeing because of their saturated color and good weather resistance. So far, they are still one of the main raw materials in the printing and dyeing industry. The traditional textile printing and dyeing industry has serious environmental pollution problems in the process of dyeing with disperse pigments, and it is not suitable for small batch production.
Heat transfer ink is suitable for: cloth, leather, metal, wood, ceramics, glass, plexiglass, PVC plate, etc.
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