Brief Introduction Of Dyeing Process Of Modal Fiber

Modal fiber is a kind of cellulose fiber, so its dyeing performance is similar to that of viscose fiber and cotton fiber, and it can be dyed with reactive dyes and direct dyes. However, due to the particularity of Modal fiber, it is more sensitive to dye auxiliaries, and has strong affinity for reactive dyes. It has high initial dyeing rate and short half dyeing time. Once the dyes are dyed, it is not easy to shift, and it is easy to produce color splashes and spots. dyeing Curve, cotton leveling agent JINLVL? It is a special non/anionic surfactant compound, with excellent wetting, dispersion, and retarding properties, alkali resistance, salt resistance, hard water resistance, low foam, and can increase the solubility of dyes, effectively prevent color spots, color defects, etc. Modal fabric dyed by the above process has uniform color, bright color, no creases and less hair on the surface, soft and smooth feel.

The finishing of fabrics is very important, and the grade of products depends on the quality of finishing to a large extent. The cross section of Modal fiber is uniform and round, and the cohesion between fibers is worse than that of cotton fiber. If the traditional amino silicone oil smoothing softener is used for finishing, the yarn cohesion will be more or less reduced, making the fabric surface more prone to fuzzing and pilling. Therefore, the softness process and softener will determine the fabric feel and product style. The biggest disadvantage of Modal fabric is pilling, which has a certain relationship with static electricity. Therefore, antistatic agent and anti pilling agent can be added in the finishing process for composite finishing. Modal and spandex fabrics themselves have a full and soft feel, good drapability and gloss. In order to further improve the product grade and give the fabric a soft, smooth and waxy feel, after many tests, the following soft formula is selected to make the fabric have a good hydrophilicity while obtaining a special elastic feel and a body feel.

　　 Modal fiber It is a kind of regenerated cellulose fiber, which not only has the characteristics of natural fibers, but also has the characteristics of some synthetic fibers. It is non-toxic, pollution-free, and biodegradable. It is a green and environment-friendly fiber, and has its unique wearability; Modal fiber structure determines that the surface of the fabric is hairy. Long time wet heat treatment is more likely to expose the end of the fiber yarn, which is easy to pilling in the process of taking. Polishing is to use cellulase to remove the fuzz on the surface of the fabric, so that the surface of the fabric is smooth and smooth, thus reducing the phenomenon of pilling. If the Modal/spandex knitted fabric is dyed with dim color, the pretreatment does not require high whiteness of the cloth surface, and only needs scouring to remove spinning oil and wax. Polishing can be carried out before and after dyeing. The Modal fabric added with spandex is prone to scratches, creases, unstable width and weight, hairiness, pilling and other technical problems during the dyeing and finishing process. It is the most critical to select the appropriate processing technology.

Modal Spandex After multi-functional pretreatment agent JINSOUR@X After scouring, the strength of the fiber is less damaged, the surface of the fabric is not easy to fuzz and pilling, and the original characteristics of the fiber can be maintained to avoid the damage of the Modal fiber caused by strong alkali pretreatment. Add antistatic bath softener in pretreatment and dyeing JINSOT@988 It can prevent the fabric from scratches, snagging, creases and uneven dyeing during the whole processing. In the dyeing process, the cotton leveling agent JINLVL @ is added to disperse the dyes evenly, and the dyed fabric has uniform color and bright color. Use of Silk like Fabric Finishing Agent in Softening Process JINSOT@WNS The fabric has good hydrophilicity, plump, soft, waxy and smooth feel, and has antistatic function, which improves the wearability of the product. Strengthening the finishing, such as adding anti pilling agent, will further improve the wearability of the fabric.