How to ensure the dyeing effect of GUR Uniform Dyeing Machine

1. Accurate machine operation
Strict parameter setting: Temperature is the key factor affecting the dyeing effect. Set the dyeing temperature accurately according to the dye and fabric type. For example, when dyeing natural fiber fabrics such as cotton, the reactive dyeing temperature is generally 60-90℃. If the temperature deviates from this range, it will cause abnormal dyeing rate and affect the color depth and uniformity.
Control of dyeing time is also crucial. If the time is too short, the dye cannot fully penetrate the fabric and the color will be uneven; if the time is too long, the fabric fiber may be damaged. It should be arranged reasonably according to the fabric characteristics and dye requirements. For example, when dyeing synthetic fiber fabrics, the disperse dye dyeing time is usually 30-90 minutes.
The dye liquor circulation speed should be moderate. A reasonable circulation speed can ensure that the dye liquor is in full contact with the fabric and make the color uniform. If the speed is too fast, the fabric may be damaged; if the speed is too slow, the dye liquor is unevenly distributed and color difference is easy to occur.
Standardized operation process: Check all parts of the machine before starting the machine, including pipes, valves and sensors, to ensure normal operation. During the dye injection process, ensure that the dye is uniform and free of impurities to prevent pipe blockage from affecting the dye circulation.
Pay close attention to the machine status during the dyeing process, especially the temperature and liquid level changes. Once an abnormality occurs, such as excessive temperature fluctuations or abnormal liquid levels, timely adjustments should be made to prevent dyeing failure.
2. High-quality dyes and auxiliaries
High-quality dye selection: Select dyes with high purity and good solubility. High-quality dyes can ensure good dyeing rate and color fastness. Accurately calculate the amount of dye according to the weight of the fabric and the target color depth. Insufficient dosage will make the color lighter, and excessive dosage may cause uneven dyeing and waste.
Reasonable use of auxiliaries: auxiliaries can optimize the dyeing process. For example, the use of leveling agents can prevent uneven dyeing. However, the amount of auxiliaries should be strictly controlled, because too much or too little may have an adverse effect on the dyeing effect.
Pay attention to the compatibility between auxiliaries. When using multiple auxiliaries at the same time, test them in advance to ensure that they work together to improve the dyeing quality.
3. Good pretreatment of fabrics
Impurity removal: The fabric should be thoroughly cleaned before dyeing to remove impurities such as oil and dust. If there are impurities left, it will hinder the dye from being dyed, resulting in uneven dyeing. For fabrics containing natural fibers, they can also be scoured to remove impurities such as pectin to enhance the affinity for dyes.
Fabric flat placement: The fabric should be kept as flat as possible when placed in the dye vat. If the fabric is folded or entangled, the dye circulation will be blocked, and it is easy to have a difference in dyeing depth. Tools such as clamps can be used to evenly distribute the fabric in the dye vat to ensure uniform penetration of the dye.
If you want to know more about the dyeing effect of GUR Uniform Dyeing Machine, etc., please contact Bosen industrial group for more consultation. The professional team will provide you with 7*24 service.