Digital printing technology
Digital printing is to pass the existing pattern through the scanner, and convert the pattern into a digital form and input it to the computer (or directly draw the graphic in software such as AI, CoreIDRAW, etc.). The printing process is edited by the counting machine printing color separation system, and then the micro-piezo nozzle is directly controlled by the computer to spray the special ink onto the textile, and the drawn pattern is restored after the color is mixed. (Doing WYSIWYG through color management curve) At present, digital inkjet inks in domestic and foreign markets are mainly divided into active, acidic, dispersing, coating and oily inks. The reactive printing is mainly applied to cellulose fiber fabrics, which performs well on pure cotton fabrics and the application of the process is relatively mature. However, due to the steaming, washing, and other processes in the production process. It will cause certain pollution to the environment. It is gradually shrinking under the trend of environmental protection. The new process of active weak acidity can also print protein fibers. Disperse printing is mainly applied to fabrics such as polyester fiber. The dispersion process can be divided into a thermal sublimation process and a distributed direct injection process. Sublimation is a special sublimation ink printed on a special transfer paper by a photo machine, and then the color of the ink is colored in the fabric by high-temperature divergence technology. Among them, the transfer paper is a one-time product, which can only be discarded after being used once. Personally, it is considered to be a waste of cost. Then the scattered direct injection is relatively easy to understand. It is to spray the dispersing ink directly onto the fabric. At present, the distributed direct injection technology is applied to the process of pure cotton direct injection. The best thing to do now is Italy's Wan Ling. Acid printing is mainly applied to protein fibers such as silk and wool. More common in the application of silk scarves, cheongsam and other products. Direct spray of paint: The paint can theoretically be applied to any fabric according to the principle of its color. However, the color fastness and washing fastness of different fabrics are different. At present, cotton-based blended fabrics and theories are widely used. He can be said to be a substitute for reactive dyes, and its application on pure cotton has become increasingly mature. However, it is an emerging alternative product after all, and it still has certain deficiencies compared with professional reactive dyes made of pure cotton. However, it does not need to be steamed and washed with the environmental protection of the paint ink. Therefore, it has already occupied a certain market, and the future market orientation will definitely develop towards coatings.
