Use of special chemicals Garments Dyeing and dyes became essential for garments dyeing. Because, the use of special chemicals. Dyes facilities additional advantages as well as saves accessories from risk of damage present in the garments. For example, zipper used in the garment may be protected from corrosion during garments dyeing by the use of special chemicals.
Special Chemicals Garments Dyeing
Basically Special Chemicals Garments Dyeing for cotton garments are dyed in garments dyeing technique in our country. Cotton garments may be made from woven or knitted fabrics. Woven cotton garments dyeing process needs more precaution than the cotton knitted garments. Because, woven grey fabrics contains size materials and more impurities in the fabric than the cotton knitted fabrics.Use of metal components like zipper, button, stud, etc. is more in woven garments than the knitted garments. Possibility of crease marks formation during woven garments dyeing is more than the knitted garments.
Pretreatments of Special Chemicals Garments Dyeing
Pre treatments of garments made from cotton grey fabrics prior to dyeing are very important because good pre treatment means half dyeing is completed. Normally pre treatment means desizing, scouring and bleaching operations. For desizing, bacterialalpha amylase base desizing agent provides better performance as because stability of enzyme activity is not affected by the variation of temperature and PH. Normally at 70°C, PH 6 to 7.5, .60 minutes processing is enough for satisfactory desizing. Use of high temperature reduces processing time. Use of non-ionic wetting agent in the bath improves desizing effect. Water hardness helps in stability of desizing agents. Biolase, Bactosol, etc. are the examples of some of such desizing agents.
After desizing of Special Chemicals Garments Dyeing
After desizing of Special Chemicals Garments made from cotton grey fabric needs scouring and bleaching treatments to remove natural impurities present in the cotton fibers such as fats, waxes, pectin’s, pectose, ash, mineral organic compounds and coloring substances. Depending on cotton fiber type and source of origin those impurities varies. Especially presence of mineral impurities can impede the stability of hydrogen peroxide during bleaching. During scouring and bleaching those impurities are removed from the cotton fiber. If those removed impurities forms insoluble compounds and suspended in the liquor, may reed position the garments fabric surface resulting color spot in the garment fabric after dyeing. To avoid such problem special chemicals like sandopan LFW orsirrix A.K. liquid may be used.
Metal compound of Special Chemicals Garments Dyeing
Metal compound containing copper, iron, etc can destroy the bleaching performance.Presence of aluminum may be damaged by the action of alkali. To avoid the problems of metals, during chemical treatment, Sandoclear 8160 or sandopan SF liquid may be used. During bleaching of Special Chemicals Garments Dyeing cotton/nylon blended fabric, nylon fibre may be damaged by the action of peroxide bleaching agent. If Lanalbin PA powder is used during peroxide bleaching then the nylon fiber swill be unaffected by the bleaching agent. During hydrogen peroxide bleaching,stabilizer AWN of sandoze can be used which is better as stabilizer for hydrogen peroxide, moreover it has some detergent power and softness handle properly.
To avoid the problem of crease marks formation during wet treatment, imacol brandas lubricant may be used in the chemical bath. Cotton fibers in garments form may be cataionised by sanden 8425 liquid @3% before garments dyeing to develop new color effect in the garments. During Special Chemicals Garments Dyeing,some areas of the garments like collar, cuff, pocket and seam areas may be irregularly dyed due to interruption of dye penetration in those areas. To avoid the risk of irregular dyeing, leveling agent may be used in the bath. Drimagen E2R of Clarient Company if used in the dye bath, such problem can be avoided. Moreover it also sequesters the calcium and magnesium ions if presenting the dye bath. Before dye addition in the dye bath, use of 1 gram per litter drimagen E2R serves the purpose.