Application of Digital Printing Technology on Silk Fabrics

Due to the restrictions of the front and rear lanes, most printing systems use disperse dyes and use transfer printing methods on chemical fiber fabrics, while high-grade fabrics such as silk, cotton, and wool are not suitable for transfer printing. Reactive dyes are used and are directly printed on On the fabric.

First, the production process and process

1. Pre-printing printing machine When using reactive dyes for direct printing, the fabric must be sizing treatment, and the pre-treatment plays a decisive role in the final printing effect and quality. Therefore, the pre-treatment process must attract sufficient attention. .
According to the different printing patterns, we use two different kinds of pastes, one is mainly used for printing common flower patterns, and is also the most commonly used paste, using sodium alginate; (temporary formula) another use For the printing of high-precision patterns and characters, use SD-10 slurry.
Sizing equipment is best used rotary screen printing machine, a small amount can also be manually sizing.

2. Printing At present, there are two kinds of printing software for the ink jet printing system of Baotou Kobo, and the corresponding printing software can be selected according to the flower type and color matching. For the determination of printing accuracy, we use 36OdPi and 720dPi for comparison, feeling 36OdPi particles are coarse, the screen effect often fails to meet the customer's requirements, so choose 72Odpi precision production, the speed is 2-4m2/min.

3, steaming and steaming equipment can use cylinder steamer and continuous flat steamer, due to the distinctive characteristics of the cylinder steamer bright color, it is recommended to use a cylinder steamer.

4. The process of washing and finishing water washing and finishing is similar to that of screen printing silk fabrics, and a certain amount of antifouling agent and fixing agent should be added when washing. When using the hot air tenter for finishing, you can add the right amount of softener according to the customer's requirements to improve the feel.

Second, the printing equipment on the site and the environment requirements.
Because the piezoelectric nozzle used in the jet printer is quite delicate, it is relatively easy to cause plugging phenomenon. Therefore, the site environment is relatively high. On the one hand, it is arranged as far as possible in the dust-proof environment. On the other hand, the site should maintain a certain degree of humidity. According to our experience in practice, the relative humidity should be at least 60% or more. Generally speaking, suitable humidifiers should be provided on the site. The room temperature is controlled at about 20°C.