Sublimation heat transfer paper production process design skills:
Digital inkjet sublimation transfer is the use of digital cameras or scanners and professional image library to digitize the image, through the computer to stop the image processing and design, to produce the required color bright, detailed image, and then through the special purpose The inkjet printer of the sublimation transfer ink prints the ink on the base paper according to the image envisaged by the computer, and then the image on the transfer paper is reduced by a cupping machine, bakeware or a baking printer, and the image will be in a few minutes Transfer to porcelain plates, civilized shirts, and other souvenirs.
1. Production of sublimation transfer paper
The manufacturing process of thermal transfer decal paper is similar to the digital color inkjet proofing system, that is, the computer will be used to thermally transfer graphics, photos, etc. to stop processing and design, and the digital inkjet printer is printing on the base paper. The inkjet printer has four independent ink cartridges: yellow, pink, blue, and black, so it can print monochrome images on the base paper, and it can also print color images. This type of inkjet printer saves the plate-making process, reduces the manufacturing cost, and makes the thermal transfer process easier.
2. Heat transfer patterns on cups, plates, plates, and other souvenirs
The baking cup machine with electronic digital control can transfer the pattern on the sublimation transfer paper to the cup in a few minutes. Using the cup baking machine to make a beautiful, full-color picture on the cup, the only consumption required is the public transfer ink and a cup with a special coating, which is convenient and fast to operate. The bakeware machine controlled by the electronic digital can transfer the pattern on the sublimation transfer paper to the plate in a few minutes. Equipped with common transfer printing ink, various patterns can be based on a special plate with a bakeware machine. The baking printing machine controlled by electronic digital can transfer the pattern on the sublimation transfer decal paper to the porcelain plate and metal plate in a few minutes. It can be used to make cards, reputation certificates, souvenir cards, and portrait porcelain plates.
Advantages and applications of transfer printing:
transfer printing has the characteristics of lightfastness, washing resistance, strong colorfastness, and rich colors. It can be used for printing on clothing, home textiles (curtains, sofas, tablecloths, umbrellas, shower curtains, bags), and other products. The company has hundreds of patterns and fabrics to choose from. How many methods are there for transfer printing?
1. Sublimation method
This is the most commonly used method. Using the sublimation characteristics of disperse dyes, disperse dyes with a molecular weight of 250 to 400 and a particle diameter of 0.2 to 2 microns are used together with water-soluble carriers (such as sodium alginate) or alcohol-soluble carriers (such as ethyl acetate). Base cellulose) and oil-soluble resin is used to make inks, which are processed on a transfer printing machine at 200-230°C for 20-30 seconds to transfer and fix disperse dyes to synthetic fibers such as polyester.
2. Swimming method
The dye in the ink layer of the transfer paper is selected according to the nature of the fiber. The fabric is first subjected to padding treatment with a mixture of fixing aids and pastes, and then in the wet state by hot-pressing migration, so that the dye is transferred from the transfer printing paper to the fabric and fixed, and finally steamed and washed
Isotonic treatment. When the dye is transferred, greater pressure is required between the fabric and the transfer paper.
3. Melting method
The ink layer of sublimation heat transfer paper is based on dyes and waxes. Through melting and pressing, the ink layer is embedded in the fabric, so that part of the ink is transferred to the fiber, and then the corresponding post-treatment is performed according to the nature of the dye. When using the melting method, greater pressure is required, and the transfer rate of the dye increases with the increase of the pressure.
4. Ink layer peeling method
Using the ink that can produce strong adhesion to the fiber when exposed to heat, the entire ink layer can be transferred from the transfer paper to the fabric under small pressure, and then the corresponding fixing treatment can be done according to the nature of the dye.