How to control the amount of softener used in the softening process of the normal temperature jigger

1. Determine the basic amount according to the fabric type
Fiber material: Different fiber materials have different adsorption capacities for softeners. Natural fibers such as cotton, linen, silk, etc. are usually easier to absorb softeners than synthetic fibers such as polyester and nylon. For example, for pure cotton fabrics, the amount of softener used per liter of dye solution can generally be around 20-40 grams; while for polyester fabrics, the amount of softener used per liter of dye solution may be around 10-30 grams.
Fabric weight: Heavier fabrics require relatively more softener to ensure that the entire fabric can be fully treated. The amount of softener used can be roughly estimated based on the weight per square meter of the fabric. For example, for a light fabric weighing 100-150g/m2, the amount of softener used in each liter of dye solution may be 15-25g; for a heavy fabric weighing more than 300g/m2, the amount of softener used in each liter of dye solution may need to be increased to 30-45g.
Fabric structure: Tight fabric structure is relatively difficult for softener to penetrate, and the amount of softener used may need to be increased. For example, plain fabrics usually require more softener than loose knitted fabrics. For tight plain cotton fabrics, the amount of softener used in each liter of dye solution may be 5-10g more than that of ordinary knitted cotton fabrics.
2. Conduct a small sample test
Prepare a small sample: Cut a small representative sample from the fabric to be treated, the general size can be about 20 cm × 20 cm.
Prepare dye liquor of different concentrations: prepare several containers and prepare dye liquor containing different amounts of softener. For example, the softener content in each liter of dye liquor can be set to 10 grams, 20 grams, 30 grams, 40 grams, and other different concentrations.
Softening treatment: put the samples into dye liquor of different concentrations and treat them according to the process conditions of the normal temperature roller dyeing machine, including immersion, winding, extrusion, drying and other steps.
Evaluate the effect: evaluate the feel, softness, appearance and other aspects of the treated samples. You can touch the softness with your hands and observe the gloss and wrinkle recovery of the fabric. If the feel is still hard, you can increase the amount of softener appropriately; if the feel is too greasy or there is obvious residue of softener on the surface of the fabric, you can reduce the amount of softener.
3. Adjust according to actual production conditions
Equipment factors: Different models of normal temperature roller dyeing machines may have differences in dye liquor circulation, fabric winding methods, etc., which will affect the distribution and adsorption of softener on the fabric. If it is found that the dye liquor circulates unevenly in the equipment, resulting in poor softening effect on some fabrics, the amount of softener can be appropriately increased or the processing time can be extended. For example, for some old jiggers, it may be necessary to increase the amount of softener by 5-10% to ensure that the entire fabric can be fully treated.
Water quality impact: If the hardness of the production water is high, it may react with the softener and reduce the effect of the softener. In this case, the amount of softener can be appropriately increased. For example, when the calcium and magnesium ion content in the water is high, the amount of softener per liter of dye liquor can be increased by 10-15%. At the same time, softening treatment of production water can be considered to improve the use efficiency of softener.
Production batch differences: Even for the same type of fabric, there may be differences between different batches, such as fiber thickness, fabric pretreatment degree, etc. Therefore, in the production of each batch, pay close attention to the effect of softening treatment, and adjust the amount of softener in time according to the actual situation. For example, if it is found that a batch of fabrics removes more impurities during the pretreatment process, it may lead to an enhanced adsorption capacity of softeners. At this time, the amount of softener can be appropriately reduced.
If you want to know how to control the amount of softener used in the softening process of the room temperature jigger dyeing machine, you can contact Bosen Machinery Manufacturing, and we will do our best to help you!