Enzyme wash

Enzyme wash

1. Welcome to my presentation On Enzyme Wash

2. Submitted by:- Md.Ibrahim Khalil ID:16173207095 Intake:19,Section:02 Department of Textile Engineering Bangladesh University of Business & Technology

3. Introduction Enzymes are bio chemical substances that behave as catalysts toward specific reactions. What makes very interesting the enzymes under a chemical point of view is their high specificity or in other words, their ability to attack selectively a given substrate. 

4. Objects of Enzyme wash To remove the size materials from the garments. To remove the starch presents on the garments fabrics. For soft feeling to wear the garment. To achieve the buyer reference sample. To increase the  color fastness  & rubbing fastness. Especially develop the "Bio-Polishing" affect of cotton/denim. Enzyme improves the anti-pilling properties. Enzyme attacks more the surface of the fabrics and gives a very smooth surface.

5. Advantage Of Enzyme Wash Simple process handling and minimum effluent problem. Better feel to touch and increased gloss or luster. Can be applied on cellulose and its blend. It allows more loading of the garment into machines. Environmental friendly treatment. Less damage to seam edges and badges. Use of softener can be avoided or minimized.

6. Types of Enzyme & Features. Acid Enzyme: Acid enzyme colour is slightly brown. pH range is 4.5 to 5.5 Temperature -40°c -55°c. Time required 25 mts to 50 mts . Enzyme affects come within short time. Staining/Bleeding occurs more in garments. Production high.

7. Types of Enzyme & Features Neutral Enzyme: Enzyme is slightly white powder form. pH range is 6 to 7. Temperature -40°c -60°c. Time required 40 to 70 mts . Enzyme affects come slowly. Less staining/bleeding on garments. With pumic stone comes good affect/abrasion on garments. In dark shade enzyme affect comes good.

8. Types of Enzyme & Features SL Enzyme: SL enzyme is liquid form. pH range is 6 to 7. Temperature range 40°c -60°c. Time required 45 to 80 mts . Enzyme affects come slowly. Less staining/bleeding on garments. With pumic stone come better affect. In dark shade enzyme affect comes good.

9. Enzyme Washing Process # First Step: Desizing Lot Size ............ 60 kg M : L = 1 : 9 .............. 540 Litre Run The Machine. Desizing agent @ 0.6gm / litre ............ 324 gm. Detergent @ 0.8gm / litre .................... 432 gm. Temperature.......................... 60°c. Time...............................10--20 min. Drop the liquor. Wash 1 time by cold water.

10. Enzyme Washing Process # Second Step: Enzyme Wash M:L = 1 : 8 .............. 450 Litre Acetic Acid @ 0.6gm / litre ................270 gm. Anti back staining @ 0.6gm / litre ........ 270 gm. Acid Enzyme @ 2.00gm / litre ................ 900 gm. Temperature.......................... 45°c Time .......... (Depend upon the shade )...40--60 min. Increase temperature to 90°c and run 1 minute (enzyme killing). Drop The Liquor. Rinse Twice, each 3 minutes.

11. Enzyme Washing Process # Third Step: Softening M:L = 1 : 8 ..................... 450 Litre . Acetic Acid @ 0.6gm / litre ............ 270 gm. Cationic Softener @ 1gm / litre .............. 450 gm. Temperature........................ Room Temp. Time ............................................. 15 to 20 min. Drop The Liquor. Then unload the garments.

12. Enzyme Washing Process # Fourth Step: Hydroextractor Machine After unloading garments from the washing machine then they are sent to  hydroextractor machine  to remove excess water from the washed garments.

13. Enzyme Washing Process # Fifth Step: Drying Machine Load 60 kg garments to gas dryer. Temperature set -75°c to 85°c. Run about 40 min. After then run 10 min in cold dryer.

14. Enzyme Washing Process # Sixth Step: Delivery   After dryer, garment goes to quality section for quality checking and good one delivery.