The principle of sublimation transfer digital printing

Dye sublimation digital printing machine is a kind of digital printing machine commonly used at present. What is the principle of thermal transfer digital printing? First, the ink is printed on the transfer medium such as thermal transfer paper, and then the dye is heated to a high temperature (about 200 ℃) to sublime the gas phase to condense on the surface of the polyester, and then penetrate into the amorphous area of ​​the fiber macromolecule, after cooling A printing method fixed inside the fiber.
Sublimation transfer digital printing uses disperse ink, because disperse ink will sublimate and develop color at high temperature, so it can be better printed on fabrics. Common disperse inks are:

Quick-disperse ink: The temperature can be sublimated and developed at about 180 ℃. If the temperature is increased, the color will change, and the edges will seep.
Good dispersion ink: temperature can sublimate and develop color in the range of 180-210 ℃. The color curve is flat. The temperature has little effect on dyeing, and it is a suitable disperse dye for transfer printing.
Low-speed dye dispersed ink: the dye cannot sublimate and develop color well at 180-210 ℃. If the temperature is increased, good color development can be obtained. These dyes are strongly temperature-dependent when dyeing.
Dye sublimation transfer digital printing is mainly used for fabric printing, various natural fiber, man-made fiber, nylon, chemical fiber and other polyester fabrics. , Dyes suitable for transfer printing should meet the following conditions:
(1) The dye for transfer printing must be fully sublimed and fixed on the fiber below 210 ℃ and can obtain good washing fastness and ironing fastness.
(2) The dye for transfer printing can be fully sublimated and transformed into a gas phase dye macromolecule after being heated, condensed on the surface of the fabric, and can diffuse into the fiber.
(3) The affinity of dyes for transfer printing to transfer paper is small, and the affinity to fabric is large.
(4) The dyes for transfer printing should have bright and bright colors.
More info:
Website: www.skyimagepaper.com
Company Name: Fei Yue Digital Technology Co., LTD
E-mail: sales@feiyuepaper.com
Tel: 86-025-86628894
Whatsapp: +86 18252072197
Address: Central Road 323, Nanjing, Jiangsu, China