- What are the printing processes for knitted artificial fur fabric
1. Flower screen printing plate making
2. Preparation of printing paste
3. Steam fixation
After printing, the fabric needs to be steamed, so that most of the dye remaining in the color paste is dissolved in the presence of water, transferred to the fiber, and diffused into the fiber. Steaming can make dyes and chemical auxiliaries at a higher temperature, using the effect of moisture at high temperatures, to expand the color paste and fabric, and promote the penetration of the dye and the curing agent to the fiber, and the fiber is completed in a short time. The necessary chemical reaction. Their steaming conditions are as follows: ① Acrylic fur: The temperature in the steaming machine is controlled at (101～105)℃, the humidity must be within the range of 90%～98%, and the fabric steaming time is (8～15)min. After steaming, it needs to be ventilated (5 ~ 10) min before unloading to prevent the swollen size from sticking to the fabric and causing color. ②Polyester fabrics are printed with disperse dyes, and high-temperature and high-pressure steaming method fixation is to steam the fabric in a sealed high-pressure steaming box at (125～135)℃ for about 30 minutes after printing, and the steam in the steaming box is superheated. Not high, close to saturation, so the fiber and the color paste absorb more moisture, and the swelling is better, which is conducive to the transfer of disperse dyes to the inside of the fiber, and the paste is also easy to wash off during water washing. ③When steaming, the moisture content of the color paste on wool fabrics should be appropriate. If the moisture content is too low, the steaming effect is not good. The moisture content is high and the color is deep and the craftsmanship and technology are bright. Therefore, cotton cloth with moisture content of 10%-15% is often sandwiched between the fabrics and steamed together. Generally use saturated steaming at (130～135)℃, steaming time (30～40)min.
4. Desizing (washing)
The printed fabric is steamed at a high temperature. At this time, most of the dyes have been combined with the fibers. The excess dyes, the paste that has completed the task of transferring the dyes, and the various additives added to the printing paste have completed their mission. The purpose of desizing is to completely remove the part that has not participated in the reaction from the fabric. Improper handling will stain the white ground, and the color of the printing area will be dark, which will affect the quality of the printed product. As for the simplicity and complexity of the desizing (washing) process, it largely depends on the original paste selected. If the original paste with good water solubility is selected, the washing time will be shortened. Desizing the fabric is a dehydration process, which can be carried out in accordance with the finishing process of knitted fabrics.