Why is the pre-treatment process of printing and dyeing so important
The scouring and bleaching workshop is a very important part of the printing and dyeing factory. According to quality analysis statistics, there are 707 defective fabrics in finished printing and dyeing products. The above quality problems are all related to poor pre-treatment. Without good scouring and bleaching semi-finished products, it is impossible to produce good printed and dyed finished fabrics. Therefore, we should implement the job responsibility system, improve the process loading rate and equipment integrity rate of each process in the polishing and bleaching workshop, and ensure the quality of each process.
The production of qualified semi-finished and bleached products is the basis for ensuring the quality of finished printing and dyeing products. Some problems such as wrinkles and creases that occurred during the boiling and bleaching process have become quite flat and difficult to see after the mercerization process. Semi-finished products that are not cleanly desized or scoured are dropped on the machine.
It’s not easy to detect, but the flaws in the dyeing and pre-treatment will be immediately exposed.
In production practice, it can be seen that some semi-finished products with insufficient pre-treatment and poor quality will produce fabric strips after dyeing.
Due to problems such as flowers, uneven dyeing, color difference between the edges, color difference between the front and back, and creases, the dyeing process had to be stopped and returned to the bleaching workshop for repair. In printing and dyeing factories, there is a saying of “seven points for bleaching and three points for dyeing”, which emphasizes the importance of bleaching. A good printing and dyeing factory must have a
A good pre-processing workshop (including good hardware and software) is the consensus of professionals in the printing and dyeing industry.
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