This belongs to thermal transfer technology and is easy to learn. You can print various patterns on cotton clothes. You can print some thermal transfer ink with a computer printer. ~ (1) thermal transfer technology has been used in fabric thermal transfer production for a long time. With the rapid development of high technology, the application of thermal transfer technology is more and more extensive. There are two kinds of ink: hot press transfer and thermal sublimation transfer. From the point of view of the transferred objects, there are fabrics, plastics (plates, sheets, films), ceramics and metal-plated plates. Printing methods can be divided into screen printing, lithography, intaglio printing, relief printing, inkjet printing and ribbon printing. From the base material, there are thermal transfer paper and thermal transfer plastic film. The following focuses on hot-pressing transfer and thermal sublimation extension technology. I. Hot-pressing extension technology Hot-pressing extension technology First, graphics and texts are printed on thermal transfer paper or plastic film by screen printing, gravure printing and other printing methods, and then transferred to fabrics, leather and other articles by heating and pressing. The thermal transfer process can be referred to as hot stamping for short, and can be divided into the following categories: 1. High temperature hot stamping: mainly used for cotton and blended knitted garments. Such as t-shirts, pajamas, etc. The pattern has a photo effect and is soft and elastic after ironing. 2. Low-temperature hot stamping: mainly used for nylon cloth and PU artificial leather, such as elastic sportswear, swimsuits, down jackets, sports shoes and leather gloves. The pattern effect after hot stamping is the same as that after high temperature hot stamping. Used in elastic clothing, the elastic effect is excellent. 3. Flocking hot stamping: widely used, usually used for women's stockings, men's cotton foam, clothing trademarks, knitted children's wear and so on. The pattern has a three-dimensional effect, and it can be multi-colored, soft, elastic and strong in adhesion after ironing. 4. Infiltration foaming hot stamping: mainly used for cotton, chemical fiber sweaters, sweaters, jeans, etc. The main features are that it permeates into the cloth, has good air permeability, has a strong three-dimensional effect on the foamed part, has a good raised texture, and has a soft hand feeling and strong adhesion after ironing. The hot stamping method and matters needing attention are as follows: (1) Place the transfer paper pattern fabric in the required position. (2) Pressurize and heat for several seconds with an iron or a transfer printer. (3) Tear off the backing paper (three methods). Cold peeling: After completely cooling, slowly tear off the backing paper. Hot hand: Tear off the backing paper immediately when it is hot. Overwintering: Wait a few seconds, and then tear off the lining paper when it is warm. (4) When ironing stockings, silicone oil paper should be added under the printed surface to prevent hot melt adhesive from infiltrating. See table 1 for general hot stamping process indicators for reference only. Second, thermal sublimation extension technology Traditional thermal sublimation transfer refers to printing thermal sublimation transfer printing ink on paper (or plastic film) by screen printing, overlapping the printed paper (or film) with the fabric, heating, pressurizing or depressurizing, and then sublimating the dye on the paper (or film) and transferring it to the fabric in gas phase. In addition to fabrics, it can also be transferred to products such as ceramics and metals. The main feature of thermal sublimation extension technology is that the transferred image is bright in color and rich in layers, and the effect can be comparable to that of printing. Different from printing, the dye in transfer printing ink is sublimated by heat, permeates the surface of the object, and forms a colorful image after sublimation. Therefore, thermal transfer products are durable, and images will not fall off, crack or fade. With the rapid development of high technology, the technology and level of thermal transfer printing have been further expanded and improved. In thermal transfer technology, computers are widely used for image processing and design, and then images are printed on paper (or film) by high-speed and high-quality inkjet printers, which saves the plate-making process. Thermal sublimation ink can also be coated on plastic film and cut into color bands for smart card printing technology. The electronic digital control cup baking machine can transfer the pattern on the paper from thermal sublimation to printing to the cup in a few minutes. Using a cup baking machine to make a beautiful full-color picture on a cup requires only a special transfer printing ink and a cup with a special coating, which is convenient and quick to operate. The electronic digital control baking machine can transfer the patterns on the paper from heat sublimation to printing to plate in a few minutes. Equipped with special transfer printing ink, you can use a baking machine to bake various patterns on special boards. The drying and printing machine controlled by electronic numbers can transfer the patterns on paper from thermal sublimation to porcelain and metal plates in a few minutes. Suitable for making medals, honorary certificates, commemorative cards and portrait porcelain plates.