The very important area for Automation is the dying process because it involves a lot of minute parameters which are very critical. Even in milligrams, a variation of a recipe can change the shade of the fabric. All the parameters for dying like temperature, pressure, water level, water flow, circulation and time of treatment are most important. The process of dyeing can be divided into three types. One is the continuous dyeing process, second is semi-continuous dyeing process, whereas the last one is termed as Batch Dyeing Process. Let’s start with the working of the continuous dyeing process. The textile substrates are feeding continuously into a dye range. The speeds can fluctuate between 50 to 250 meters for each minute. In the method of semi-continuous dyeing that consists of pad-batch and pad-roll, the fabric is first saturated with the dye-liquor in, which is called a padding machine. After that, it is subjected to batch wise handling in a jigger. Furthermore, it could be stockpiled with a deliberate rotation for several hours. Lastly, Batch Dyeing Process, which is the most accepted and common process, used for dyeing of yard goods. Occasionally, Batch dyeing is also referred to as Exhaust dyeing. This is because, in this process, the dye gets leisurely transferred from a moderately large volume dye bath to the substrate that is to be tinted. The time taken is also longer, and the dye is meant to ‘exhaust’ from dye bath to the substrate.
- Jet Dyeing
- Weight Reduction