Spandex reactive printing process
In the spandex reactive printing process, it is necessary to strictly control the temperature of the drying room, and it is also necessary to consider that excessive temperature will cause the vat dye to restore early and affect the hair color.
The engraving and printing process is done and steamed as it is made. Excessive long-term storage will cause the dye on the cloth surface exposed to the air to oxidize first, causing permanent color difference; for the printing process of polyester fabrics with smooth cloth surface, Although there are pastes with relatively high solid content, it does not rule out the possibility that the slurry layer is easily pulled apart. Do not squeeze after the fabric is dropped in the printing process. When washing knitted fabrics containing spandex, you need to pay more attention to the entire washing process than washing ordinary knitted fabrics. Meridian stress problem.
The rope-shaped cylinder is a traditional washing equipment, which is more suitable for washing knitted fabrics. However, when it comes to engraving and printing craft fabrics, the open-width knitted fabrics are sprayed Sprinkling water can make it easier to puff up the slurry on the fabric, wash away the alkali agent and part of the floating color on the fabric, and then enter the rope soaping or reduction cleaning process, which will achieve a good washing effect.
Same weaving specifications, due to different processing methods, will produce different gram weight, width, shrinkage and twist. The preformed width control, temperature and speed play a decisive role.
During the processing of spandex-containing knitted fabrics, the most important thing is to ensure that wrinkles are not produced in each process. This requires doing every step well starting from weaving. In order to meet the requirements of the gram weight, width, shrinkage and twist of the final product containing spandex knitted fabric, in addition to the weaving requirements, it must be grasped starting from the pre-shaping.
Keywords:
Spandex spandex reactive printing
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