Normal Wash, pigment wash, caustic wash

NORMAL WASH / GARMENTS WASHNormal wash is required for the following reasons:-To remove dust, dirt, oil spot, impurities from the garments.To remove size materials from the garments.To remove starch presents on the garment fabrics.For soft feeling to wear the garments after purchasing.To achieve buyer washing standard.WASHING PROCESS OF NORMAL / GARMENT WASHThe Normal/Garment washing process of batch of 70 kg Twill/Canvas Garments are described below:-First Step:-Lot size: -....................... 70 kg Twill/Canvas Garment.Add water @ L: R = 1: 8-10 ............560 --700 Litre.Machine Running.Add detergent @ 0.5 gm / litre ............ 280-350 gm.Temperature..... Sometime cold & sometime 40c to 60c.Time .............................. 5 to 10 mts.Drop the liquor.Cold wash.Second Step:-Add water @ L : R = 1: 6 ......... 420 litre.Washing machine runningAdd Flax softner @ 0.6 gm / litre .......... 252 gm.Add Acetic Acid @ 0.5 gm / litre........... 210 gm.Time................................... 5 to 10 mts.Drop the liquor.Unload the Garments on trolley.Third Step:-Hydro extractor machine.Hydrocxtraction the garment to remove excess water from the Garment.Fourth Step:-Steam Dryer / Gas Dryer.Load on steam dryer -50 kgTemperature -60c -70cTime -40 -50 mts for dry.Time -10 -15 mts for cold dry.orLoad on gas dryer -50 kg,Running the machineTemperature: -70c -85c.Time: -30 -35 mts for dry.Time: -10 -15 mts for cold dry.Fifth Step:-After drying it will be quality checking and good quality Garments will be delivery to Garments factory.NOTE: -Flax softner (cationic or nonionic) diluted with hot water then use in the machine.PIGMENT WASHPigment wash generally doing on pigment dyed or printed Garments by pigment washing technique.Pigment wash is required for the following reasons:-To fading affect/old looking affect on Garment and also seam area.For soft feeling to wear the garment after purchasing.To achieve the buyer washing standard.To increase the colour fastness & rubbing fastness.WASHING PROCESS OF PIGMENT WASHThe pigment washing process of batch of 80 kg Twill/canvas Garments are described below:-First Step:-Lot size: -...................... 80 kg Twill/Canvas Garment.Add water @ L: R = 1: 8.............. 640 LitreMachine Running.Add Caustic soda (NAOH)..... @ 0.8 gm / liter ............ 512 gm.Add Soda Ash (Na2Co3) ........@ 1.50 gm / litre........... 960 gm.Add Detergent ........................ @ 0.8 gm / litre ............ 512 gm.Temperature........... 50c to 60c.Time (Depend upon the shade) ....... 20 to 60 mts.Drop the liquor.Wash 1 time by hot wash for 5 mts at the temperature 50c.Wash 1 time by cold water for 5 mtsSecond Step:-Add water @ L : R = 1: 6 ......... 480 litre.Washing machine runningAdd Acetic Acid (for pH 4.5 -5.5) @ 0.5 gm / litre ............. 240 gm.Add Flax softner ... . @ 0.6 gm / liter........... 288 gm.For more slippery hand feel use silicon -@ 0.4 gm / litre.....192gm.Time................................... 15 to 25 mts.Drop the liquor.Unload the Garments on trolley.Third Step:-Hydro extractor machine.Hydrocxtraction the garment to remove excess water from the Garment. Time required about 2 -4 minutes.Fourth Step:-Steam Dryer / Gas Dryer.Load on steam dryer -50 kgRunning the machineTemperature -60c -70cTime -40 -50 mts for dry.Time -10 -15 mts for cold dry.orLoad on gas dryer -50 kg,Running the machineTemperature: -70c -85c for dry.Time: -30 -35 mts for dry.Time: -10 -15 mts for cold dry.Fifth Step:After drying garments go to quality section and check the garment, good quality garment will be delivery and Deep shade again rewash, other quality Garment rectify then deliveryCHEMICAL USED IN PIGMENT WASHING AND THEIR FUNCTIONCAUSTIC SODA (NaoH):-1. Caustic created the role in bleach technique without colour change the garments.Caustic has a cleaning power which is more powerful then soda Ash.fadding affect/old looking affect come rapidly on garments.SODA ASH (Na2Co3):-1.Soda ash created alkaline medium for the breakdown of pigment dye. It has also a cleaning power. It has also help colour fadding affect of garments.Detergent:-Here detergent is used to remove impurities from the Garment fabric surfaces and temperature helps detergent to enhance its action. Detergent removes the impurities from the garments fabric surface. During coming these impurities, some pigment will be washed out from the pigment dyed or printed area of the garments. As a result fadding affect will be developed.Acidic Acid (CH3COOH):-Acidic Acid is used to neutralize the garment from alkaline condition and to control the pH value in wash bath.Flax Softner (Cationic, nonionic):-Softener is used to make the garments treated textiles is surface feel that is bath sickly and soft and also provides excellent lubricating properties.CAUSTIC WASHCaustic wash generally doing on Reactive dye, Sulpher dye, Direct dyed or printed Garments.Caustic wash is required for the following reasons:-To fadding/old looking affect on Garment and seam abrasion affection seam area.To remove the size materials, starch from the garments.To increase the colour fastness & rubbing fastness.For soft feeling to wear the garments.To increase the hairiness on garments.To achieve the buyer reference sample.WASHING PROCESS OF CAUSTIC WASHThe caustic washing processes of batch of 80 kg twill/canvas garments are described below:-First Step:-Lot size: -...................... 80 kg.Add water @ L : R = 1 : 8.............. 640 LitreMachine Running.Add Caustic soda (NAOH)..... @ 1.60 gm / litre........ 1024 gm.Add Detergent ........................ @ 0.8 gm / litre ............ 512 gm.Temperature........... 50c to 60c.Time (Depend upon the shade) ....... 20 to 60 mts.Drop the liquor.Wash cold water for 3 mts.Second Step:-Neutral WashAdd water @ L : R = 1: 5 ...................... 400 litre.Add Acetic Acid @ 1 gm / litre ............. 400 gm.Time .......................................................... 5 mts.Here acetic acid is used to neutralize the garments from alkaline medium.Third Step:-Add water @ L : R = 1 : 6 .............. 480 LitreMachine Running.Add Acetic Acid @ 0.5 gm / litre ............ 240 gm.Add Flax softner @ 0.6 gm / litre........... 288 gm.If more soft use silicon @ 0.4 gm / litre ... 192 gm.Time................................ 10 to 20 mts.Drop the liquor.Unload the garments on trolley.Fourth Step:-Hydro extractor machine.Hydrocxtraction the garment to remove excess water from the Garment. Time required about 2 -4 minutes.Fifth Step:-Steam Dryer / Gas Dryer.Load on steam dryer -50 kgRunning the machineTemperature -60c -70cTime -40 -50 mts for dry.Time -10 -15 mts for cold dry.orLoad on gas dryer -50 kg,Running the machineTemperature: -70c -85c for dry.Time: -30 -35 mts for dry.Time: -10 -15 mts for cold dry.Sixth Step:-After drying garments go to quality section and check the garment, good quality garment will be delivery and Deep shade again rewash, other quality Garment rectify then delivery.CAUSTIC WASHCHEMICAL USED IN CAUSTIC WASH AND THEIR FUNCTIONCAUSTIC SODA (NaoH) :-Caustic created the role in bleach technique with colour change the garments.Caustic has powerful cleaning power.Fadding affect/old looking affect come rapidly on garments.DETERGENT :-Here detergent is used to remove impurities from the garments fabric surfaces and temperature helps detergent to enhance its action. During coming these impurities, some colour will be washed out from the colored fabric garments. As a result fadding affect will be developed.

YPES OF CHEMICAL USE IN WASHING PLANT:1. Enzyme2. Detergent

3. Acetic Acid4. Anti-stain

5.Bleaching powder6.Sodium hyposulfite

7. Caustic Soda8. Soda Ash

9. Sodium Bicarbonate10. potassium Permanganate

11. cationic/nonionic Flax softener12. Micro Emulsion Silicon

13. Salt (sodium chloride)14. Buffer

15. Hydrogen peroxide16. Stabilizer

17. Fixing18. Catanizer

19. Optical Brightener20. Resin

21. Sodium Metabisulphite22. Desizing agent