5 Facts Everyone Should Know About Jigger Dyeing Machine

 

FYI-instrument 5 Facts Everyone Should Know About Jigger Dyeing Machine

Jigger dyeing machine is one of the equipment of batch dyeing (also named exhaust dyeing). Its corresponding dyeing method is exhaust method. This machine comes in handy when we need to dye woven fabrics.

Jigger dyeing process

​Jigger dyeing belongs to batch dyeing, During the jigger dyeing process, the dye liquor stays still. And the fabric moves back and forth through the dye liquor by the jigger dyeing machine.  This is very similar to winch dyeing process. Among this process, the tempreture and pressure may be very high. So that the migration of dye molecules from the dye solution can move into the piece of fabric easier.

What is jigger dyeing machine?

Jigger dyeing machine is one of the open-width batch dyeing machine. Different from the rope dyeing machine. The fabric will be more uniform and not easy to form creases when dyeing in jigger dyeing machine. In addition to mainly used for direct, reactive, vulcanized, reductive and other open-width dyeing. This type of dyeing machine can also be used for small batch desizing, scouring, bleaching, washing, soap cooking and dyeing post-processing. It’s not good as continuous dyeing machine in efficiency, quality, cost and operation strength. But because it is flexible, simple structure, simple operation, less investment, it is still widely used. Especially suitable for many varieties, small batch production.

Jigger Dyeing Machine Process

At a certain temperature, the open-width fabric drawn from the front roller passes through the guide roller in the dyeing bath. Then the fabric is immersed in the dye liquor, flattened, wound to the back roll, through the spreading frame. That is the first roll dyeing. When it is about to finish, the two rollers rotate in the opposite direction. And the fabric goes into the dyeing bath for a second dyeing. Do this alternately until the number of dyeing passages specified in the process is reached. In the process of jigger dyeing, due to the mutual extrusion between the cloth layers, the dye gradually infiltrates the fiber inside, in order to reduce the color difference between the dyed fabric head and tail. Generally, the number of dyeing is an even number. Dyeing number of fabric is determined by the color of dyed fabric.

After dyeing, remove the dye liquor and rinse the fabric with water. Of the two cloth rollers, the unwinding one is a passive roller, and the winding one is an active roller. There are two roll rollers on the jigger dyeing machine. In the process of jigger dyeing, the diameter of the active roll roller increases gradually. The diameter of the passive roll roller is reduced accordingly. In order to avoid the difference of internal and external tightness or wrinkle and affect the dyeing quality. The transmission of the cloth roll should ensure that the linear velocity and tension of the fabric are maintained constant in the dyeing process. And the angular velocity of the two cloth rolls should be inversely proportional to the diameter of the winding.

There are other 2 facts about jigger dyeing machine that are not mentioned here. Click here to learn more.

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