What is the dyeing process of the overflow dyeing machine?
Oct 05, 2024
1. Preparation: Pre-treat the fabric to be dyed, such as desizing, scouring, bleaching, etc., to remove impurities and stains on the fabric and improve the dyeing effect.
2. Put into the vat: Put the pre-treated fabric into the dye vat of the overflow dyeing machine, paying attention to the placement and density of the fabric to ensure uniform dyeing.
3. Inject dye solution: According to the dyeing process requirements, dissolve the dye and auxiliaries in water to prepare the dye solution, and then inject the dye solution into the dye vat until the fabric is immersed.
4. Heating dyeing: Start the overflow dyeing machine, heat the dye solution in the dye vat to the dyeing temperature, and keep it for a certain time so that the dye is fully dyed on the fabric. During the heating process, the heating speed needs to be controlled to avoid excessive temperature causing dye decomposition or fabric damage.
5. Cooling: After dyeing is completed, the temperature of the dye solution in the dye vat needs to be lowered to room temperature to avoid damage to the fabric at high temperature.
6. Cleaning: Take the dyed fabric out of the dye vat and clean it with clean water to remove residual dye and auxiliaries on the fabric.
7. Post-treatment: Post-treatment of dyed fabrics is performed as needed, such as softening, waterproofing, antibacterial treatment, etc., to improve the performance and added value of the fabrics.
8. Out of the vat: The post-treated fabrics are taken out of the dye vat, dried and sorted, and then packaged and stored.
It should be noted that different types of fabrics and dyes may require different dyeing processes and parameters, so in actual operation, they need to be adjusted and optimized according to the specific situation. At the same time, in order to ensure the quality and safety of dyeing, it is necessary to strictly abide by the operating procedures and safety precautions.
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