Dry Finishing - Washing on Denim

Presentation On “Dry Finishing or Dry Process on Denim” Likhon ahmed email: likhon.ahmed@live.com Denim: Denim is a sturdy cotton twill textile in which the weft passes under two or more warp threads. This twill weaving produces the familiar diagonal ribbing of the denim that distinguishes it from cotton duck. It is a characteristic of any indigo denim that only the warp threads are dyed, whereas the weft threads remain plain white. As a result of the warp- faced twill weaving, one side of the textile then shows the blue warp threads and the other side shows the white weft threads. This is why blue jeans are white on the inside. This type of dyeing also creates denim's fading characteristics, which are unique compared to every other textile. Etymology and origin: The word "denim" comes from the name of a fabric that was first made in the city of Nîmes, France, by the André family. It was originally called serge de Nîmes but the name was soon shortened to "denim." Denim has been used in the United States since the late 18th century. Denim was traditionally colored blue with indigo dye to make blue jeans, although "jean" formerly denoted a different, lighter, cotton fabric. The contemporary use of the word "jean" comes from the French word for Genoa, Italy (Gênes), where the first denim trousers were made. Characteristics of Denim Fabric: Click icon to add picture • It is for long wearing. • It is hard wearing. • It is very strong and durable. • It resists snags and tears • It creases easily. GARMENT WASHING: The technology which is used to modify the appearance, outlook comfort ability & fashion of the garments is called garment washing. Since 1978, garments pre washing has become more and more popular. It began with denim jeans for the following reasons,  Before garments pre washing was done on jeans, consumers had to wash them at home before wearing them because before washing they were too stiff, too long and too big to wear.  After pre washing, the consumers do not have to worry about the fit after they wash them as pre washing has taken away almost all the shrinkage and made the jeans stable.  After pre washing the denim color looks livelier particular with the pronounced washed look left on the double needled seams. Types of finishing/wash process:  Wet wash process  Dry wash process Types of Dry wash process: 1. Sand Blasting 2. Hands scraping 3. Overall wrinkles & Permanent wrinkle 4. Grinding &Destroy 5. Tacking or Tag Pinning 6. PP Spray & PP Sponging 7. Crinkle 8. Whisker 9. Chevron , Knee Star, Hot Spot 10. Resin 11. Ripping, Pilling and Cuts 12. Patch & Repairs along with Bleach Spots 1. Sample washing Machine (Horizontal / Vertical Type) 2. Washing Machine (Side loading) 3. Washing Machine (Front loading) 4. Hydro extractor Machine 5. Dryer Machine (Steam) 6. Dryer Machine (Gas) 7. Chemical Mixture Machine 8. Industrial Oven (Gas/Electric) 9. Boiler 10. Submersible Pump 11. Grinding Machine 12. Tagging Machine 13. Steam chamber for crinkle 14. E.T.P (Effluent Treatment Plant) 15. Generator 16. Sand Blasting Gun 17. Sand Blasting chamber 18. Spray gun and dummy 19. Screw compressor 20. Laser draw TYPE OF MACHINE USED IN WASHING PLANT: 1. Enzyme 2. Detergent 3. Acetic Acid 4. Anti-stain 5. Bleaching powder 6. Sodium hyposulfite 7. Caustic Soda 8. Soda Ash 9. Sodium Bicarbonate 10. Potassium Permanganate 11. Flax softener 12. Micro Emulsion Silicon 13. Salt (sodium chloride) 14. Buffer 15. Hydrogen peroxide 16. Stabilizer 17. Fixing 18. Catanizer 19. Optical Brightener 20. Resin 21. Sodium Metabisulphite TYPES OF CHEMICAL USE IN WASHING PLANT: 1. Sand Blasting: Sand blasting is the process of scrubbing off the garment by blowing high speed air mixed with very fine particles of sand. This is a very successful and most widely used process for fashion articles. When the surface area of the garment is blasted, white cotton appears beneath the blasted area and the effect is appeared very similar to the worn out jeans. Dierent types of dry washing process on denim: [...]... jeans conquered the world" BBC News 201 2-0 2-2 8 8 In 1789 George Washington toured a Beverly, Massachusetts factory producing machine-woven cotton denim (Massachusetts Foundation for the Humanities: Mass Moments 9 Coe, Nick "The Essential Raw Denim Breakdown – Our 100th Article!" RawrDenim.com Edmonton, Alberta, Canada: RawrDenim.com Retrieved 201 2-0 328 "I had read somewhere that a pair of raw denim. .. Application: This effect can be designed anywhere on the garment in different styles Most favorite areas for tacking are on waistband, bottom hems, back pocket and front pocket corners etc On front or back sides of garment, tacking can also designed horizontal of vertical patterns on full length panel 7.P P Spray & P P Sponging: Potassium permanganate spray is done on jeans to take a bright effect on sand... body For a dramatic illustration of what we mean, hop over to Takayuki Akashi's documentary on the “Traveling Denim ." 10 Slater, Sean "When Should I Wash My Raw Jeans? – A Rough Guide" RawrDenim.com Edmonton, Alberta, Canada: RawrDenim.com Retrieved 201 2-0 328 "If you’re able to wear your jeans all day, every day then 6 months may be long enough (or perhaps even too long) 11 "Denim Dialogues, Vol II: Making... Potassium Permanganate Solution Concentration- of course, this will control the extent to brightness 8 Whisker: Mustaches or whiskers are one of the most important design of a used look garment The idea of whiskers is taken form the worn out lines and impression patterns generated by natural wearing on hips and front thigh area On old jeans, a number of patterns can be finding consequential to fabric,... where the production is consistent to articles i.e similar articles are produced in large quantities This method is famous for high quality and cost effectiveness 9 Chevron, Knee Star, Hot Spot: On Denim, whiskers / Mustaches, Chevrons are nothing but the worn out lines / impression generated by natural wearing on hip & thigh area There are many designs & pattern available This is being done manually with... required to develop a futuristic vision and take appropriate measures to overcome the problems of denim processing Reference: 1 http://en.wikipedia.org/wiki /Denim# cite_note-autogenerated 1-1 2 http://en.wikipedia.org/wiki/Cotton_duck 3 http://en.wikipedia.org/wiki/Indigo_dye 4 http://en.wikipedia.org/wiki/N%C3%AEmes 5 http://en.wikipedia.org/wiki /Denim# cite_note-autogenerated 1-1 6 http://en.wikipedia.org/wiki/Engineer%27s_blue... as wrinkle recovery under suitable conditions i Permanent Wrinkle Process: Permanent wrinkle is doing on garments after all types of wet process wash in dry position .Permanent wrinkle is done on the garments made from all types of fabrics like, Denim, Twill, .Canvas, Poplin, Corduroy, Knit & Polyester etc .For permanent wrinkle we are use resin which is spray on garments particular/specific area... Time 2 0-4 0 minutes ii Overall Wrinkle Process:  Generally overall wrinkle is doing on garments after all types of wet process & dry process  Overall wrinkle is done on the garment made from all types of fabrics like, Denim, Twill,  Canvas, Poplin, Corduroy, Knit, Polyester, Viscose & Nylon etc  Now tie the whole garment in tight position by thread  For overall wrinkle, we are used resin in washing. .. stitching Stone tools similar to grinders used in wood and stone industry are utilized to work on garments with a few amendments to their design 6 Tacking or Tag Pinning: Tacking or more commonly tag pinning is a very in fashion style in denim garment in these days In this process the effect is created by swift tag machines with the help of plastic or nylon tag pins in rigid form of garment to get contrast... application of resin solution in right proportion, make manual designing as needed on the thigh, hip & back knee area to get 3Dimentional effect After making it, it should be manually dried with hot press or hair dryer & then must be cured in oven at right temperature, time as mentioned in resin product manual If resin not cured properly, 3 D effect will not be permanent & can cause skin irritation/rashes . Presentation On Dry Finishing or Dry Process on Denim Likhon ahmed email: likhon.ahmed@live.com Denim: Denim is a sturdy cotton twill textile in which the weft passes. washing was done on jeans, consumers had to wash them at home before wearing them because before washing they were too stiff, too long and too big to wear.  After pre washing, the consumers do. under suitable conditions. i. Permanent Wrinkle Process: Permanent wrinkle is doing on garments after all types of wet process wash in dry position. . Permanent wrinkle is done on the garments