What is a fabric dyeing machine?

‌Fabric dyeing machine‌ is a kind of equipment used for dyeing textiles, which is mainly used to evenly attach dyes to fabrics to make them present the desired color. Fabric dyeing machines can be divided into two main types: dip dyeing and pad dyeing according to different dyeing methods.

Definition and difference between dip dyeing and pad dyeing

‌Dip dyeing‌: repeatedly immerse the fabric in the dye solution to allow the dye to adsorb and diffuse on the fiber and finally fix on the fiber. This method is suitable for all types of fabrics and dyes evenly, but requires a long dyeing time.

‌Pad dyeing‌: After the fabric is briefly immersed in the dye solution, it is rolled by a padder to the amount of liquid required by the process, and the dye is fixed on the fiber after post-treatment. This method is suitable for occasions that require rapid dyeing and has good dyeing uniformity.

Classification of fabric dyeing machines

Fabric dyeing machines can be divided into two categories according to the shape of the processed fabric:

‌Flat-width dyeing machine‌: suitable for woven fabrics, usually used for flat-width processing.

‌Rope dyeing machine‌: Applicable to knitted fabrics, especially overflow dyeing machine for warp knitting, suitable for high temperature and high pressure dyeing of light and terry structure synthetic fiber knitted fabrics and stretch fabrics‌.

Specific models and application scenarios

Common fabric dyeing machine models include:

‌Continuous pad dyeing machine (priming machine): A continuous pad dyeing equipment suitable for the primer treatment of various fabrics.

‌Cold pad pile dyeing machine (cold dyeing machine): Applicable to low temperature dyeing, suitable for production environments with high environmental protection requirements.

‌Roller dyeing machine‌: Applicable to dip dyeing of roll fabrics.

‌Overflow dyeing machine‌: Applicable to rope dip dyeing, especially suitable for dyeing of light and terry structure synthetic fiber knitted fabrics and stretch fabrics‌.

Operation and maintenance precautions

When using a fabric dyeing machine, the following points need to be noted:

‌Slow heating and cooling‌: Avoid rapid heating or cooling to prevent dyeing or wrinkles.

‌Uniform additional dyeing‌: Ensure uniform additional dyeing to avoid accelerated hydrolysis of reactive dyes or agglomeration of disperse dyes.

Check semi-finished products: Check whether the semi-finished products are qualified before production to prevent uneven processing before and after or left, middle and right, which will lead to color difference in dyeing.