Garments dyeing

APPAREL DYEING

1. Garments Dyeing

2. Presented By : Shafi Mahmud Sajib Khan Mirajul I slam Mukut Basu ID- P201614024 ID-P201614023 ID- P201614027 ID-P201614030

3. Presented to…… Ali Azam Rokon Assistant Professor  Pabna Textile Engineering College, Pabna

4. Indication Garment processing' is nothing but preparation, dyeing, printing and finishing operations performed on apparel that has been fully made and is ready for sale . Newer fashion trends through continuous product and process development is a key to be successful, as consumers are more fashion conscious irrespective of kid’s wear, men’s garments or lady’s garments . Garment wet processing has become the key element of product development.

5. Indication The five “F’s” are very important for consumer satisfaction 1) Fabric 2) Finishing 3) Fit 4) Factory 5) Fashion . All these five elements interact with each other to create new and exciting looks for the future. Garments dyeing is the important process for developing those factors.

6. Garments dyeing What is garments dyeing? The process of dyeing the garments after manufacturing the garments from grey and/or scoured & bleached fabric is known to be garments dyeing. This is a new developed technology which becomes very popular in our country and all over the world as well . In other word,   the process of dyeing fully made apparel product like t-shirts , pants , trousers , shirts , jackets, tops, pullovers , dresses and bottoms is called garments dyeing.

7. Garments dyeing Interest in garment dyeing has grown out of the fashion driven wet processing of denim jeans after fabrication of the garment had been completed.

8. Reason for Garment dyeing The advantage of this process is the cost effectiveness of mass producing identical garments of producing identical garments of particular colors . Quick response to the market . Ability to supply a wide range of colorations to the retailer, but only in the shades that are selling . Reduced discounted sales at inventory. Best way to achieved relaxed, casual look.

9. Advantages of garments dyeing Lower cost needed Less time needed Less shade variations occurs Flexible lot size Old garments can be re dyed Lower initial investment Lower liquor ratio De sizing , Scouring , Bleaching can be done in same machine Capable to react with fast changing market trends Fancy effects can be obtained Lower inventory Comparatively lower rejection rate

10. Disadvantages of garments dyeing High cost of processing. More material handling. Special care for selection of interlining. Higher seconds rate in production. Labor intensive process. Requries full checking of all pieces. Depth variation of color between garments fabric and interlining. Spots on garments due to the presence of chemicals in the interlining. Performance of interlining may be damaged after dyeing.

11. Production Flow Chart of Garments Dyeing

12. Garments Dyeing Machines  There are two types of garments dyeing machine. These are Paddle Garments dyeing machine: A high liquor ratio is required for paddle machines,which is less economical and may limit shade reproducibility. 2. Rotary garments dyeing machine: Rotary drum machines are sometimes preferred for garments, which require gentler handling, such as sweater. Many machinery companies have developed sophisticated rotary dyeing machines, which incorporate state of the art technology.

13. Technique used for Garment dyeing 1. Tie dyeing 2 . Dip dyeing 3 . Spray dyeing 4 . Over dyeing 5 . Cold dyeing 6 . High white dyeing 7 . Washable dyeing 8. Top dyeing

14. Tie dyeing  A process of hand dyeing  fabric, in  which sections of the fabric  are tightly  bound, as with thread, to resist the dye  solution, there by producing a variegated pattern.

15. Dip dyeing Dipping the ends of the garment into either a naturally colored dye or a bright colored dye. Fading of color shade appears.

16. Spray dyeing This is one kind of dyeing which give white effect on a specific area of garments. All type of textile & garments are suitable for spray dyeing . It is also called pigment spray. Color pigment paste is used for this type of dyeing.

17. Spray dyeing

18. Over dyeing  Color applied to previously dyed color . A process of hand dyeing that works color into the base material . Allows the previously dyed color (base color) to become an integral part of the color scheme.

19. Cold dyeing Cold water dye refers to any dye which does not require very hot water for fixation. It does not necessarily mean using water that feels cool to the touch.

20. High white dyeing High white dyeing is a recent technological development. In garment dyeing commonly we use reactive, direct or pigment dyes but a Spanish Garmun dyes chemical manufacturing company developed some dyes in many hue but after fixing we get white tone.

21. Washable dyeing  After normal dyeing to get uneven look need enzyme or acid wash or caustic peroxide wash. If we use washable dyes no need enzyme or acid wash or caustic peroxide wash to get uneven look.

22. Top dyeing  Top dyeing is also called garment top dyeing. In top dyeing process only top side of garment is dyeing with reactive or direct dyes. Top dyeing is carried out in varying sized vessels as dictated by the order weight of garments. This is a manual process.

23. Precautions to be taken before garments dyeing  Design should be made engineering point of view Dyeing should be done after pre-treatment to reduce problems Grey fabric should be made from same lots or sources Seams should not be too tight or loose For mixed fibres , dye should be taken carefully Poor quality metal shouldn’t be used Proper interlining should be used Sewing threads from same fibres as garments

24. Any Question?