Acid wash is a washing process which is so popular to creating effect on garments. This presentation slide remains process and valuable information about Acid Wash.
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There is a lot of factor are involve behind of lycra damage. By the following preventive monitoring in every step of our manufacturing process we can get improvement all over the standard level and will be able to overcome those kinds of unwanted issues.
Acid wash is again becoming popular on denim jeans and we are going to see more of acid washes in the coming seasons. Here, let’s have a quick look at the acid washing process. An acid wash finish treatment creates significant contrasts in the color of the denim material. It can be done on Indigo & Sulphur base fabric garments. As the randomly faded, acid washed style came into vogue in 1980s, the process of treating denim in such a way began to become increasingly refined. Some tried to use a method similar to the stonewashing, yet the fading did not occur as dramatically or throughout the material. Acid-washed on apparel, (Phosphoric Acid is used in the process, acid would react with fabric surface and destroy the fabric), is washed with thermocol ball, pumic stones or until it is bleached almost white. During Acid wash, thermocol ball or pumic stones are used. By the action of thermocol ball or pumic stones, irregular fading affect is developed on the heavy garments like denims, thick canvas/twill, and sweater.
Lycra void, damage and precaution to avoid those in washingAzmir Latif Beg
There is a lot of factor are involve behind of lycra damage. By the following preventive monitoring in every step of our manufacturing process we can get improvement all over the standard level and will be able to overcome those kinds of unwanted issues.
Acid wash is again becoming popular on denim jeans and we are going to see more of acid washes in the coming seasons. Here, let’s have a quick look at the acid washing process. An acid wash finish treatment creates significant contrasts in the color of the denim material. It can be done on Indigo & Sulphur base fabric garments. As the randomly faded, acid washed style came into vogue in 1980s, the process of treating denim in such a way began to become increasingly refined. Some tried to use a method similar to the stonewashing, yet the fading did not occur as dramatically or throughout the material. Acid-washed on apparel, (Phosphoric Acid is used in the process, acid would react with fabric surface and destroy the fabric), is washed with thermocol ball, pumic stones or until it is bleached almost white. During Acid wash, thermocol ball or pumic stones are used. By the action of thermocol ball or pumic stones, irregular fading affect is developed on the heavy garments like denims, thick canvas/twill, and sweater.
Pilling is formation of little balls of fibers (pills) on the surface of a fabric which is caused by abrasion in wear.
Pilling is the tendency of fibers to come loose from a fabric surface and form balled particles of fiber
Pile fabrics: Manufacturing methods include woven pile fabric formation & others methods such as knit pile fabric, tufted pile fabrics etc. A "Terry" or a "Terry Towel" as is generally known is a woven pile fabric formed by slack tension weave process. of weaving.
Hairiness is characterized by the quantity of freely moving fibre ends or fibre loops projecting from a yarn or textile fabric (woven, knitted or non woven fabrics).
In term of measurement Hairiness corresponds to the total length of the protruding fibres in unit length of one centimeter.
Terry fabric is a knitted fabric with ring yarn or terry covering at one or both sides. It belongs to one of the fancy knitted fabrics. Terry fabric is characterized by soft touch, thick texture, excellent water absorption and heat retention. Terry fabric can be divided into single-sided and double-sided terry loop fabrics. The terry can form pattern effect on the knitting surface distributed according to some certain rules. Terry fabric after shearing or other process can be turned into fleece fabric or velvet fabric.
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Pilling is formation of little balls of fibers (pills) on the surface of a fabric which is caused by abrasion in wear.
Pilling is the tendency of fibers to come loose from a fabric surface and form balled particles of fiber
Pile fabrics: Manufacturing methods include woven pile fabric formation & others methods such as knit pile fabric, tufted pile fabrics etc. A "Terry" or a "Terry Towel" as is generally known is a woven pile fabric formed by slack tension weave process. of weaving.
Hairiness is characterized by the quantity of freely moving fibre ends or fibre loops projecting from a yarn or textile fabric (woven, knitted or non woven fabrics).
In term of measurement Hairiness corresponds to the total length of the protruding fibres in unit length of one centimeter.
Terry fabric is a knitted fabric with ring yarn or terry covering at one or both sides. It belongs to one of the fancy knitted fabrics. Terry fabric is characterized by soft touch, thick texture, excellent water absorption and heat retention. Terry fabric can be divided into single-sided and double-sided terry loop fabrics. The terry can form pattern effect on the knitting surface distributed according to some certain rules. Terry fabric after shearing or other process can be turned into fleece fabric or velvet fabric.
Project Report on Study on the Effects of Sanforizing Machine on the Properti...Morshed Morshed
A thesis submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Textile Engineering
Advance in Wet Processing Technology
Washing is the process & technology which is used to modify the appearance, outlook comfort ability and fashion of the garments is called garment washing.
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2. Acid Wash
During Acid wash, pumice stones are used. By the action of pumice stones,
irregular fading affect is developed on the heavy garments like denims, thick
canvas/twill, and sweater.
The pumice stones act a brushing action on the garment fabric surface. The
area where more brushing action takes place there more discolor or fading
affect is developed and the area where less brushing action takes place less
brushing action and takes place less fading affect will be developed.
The multi-layer fabric areas like –collar, calf, pocket, placket, side seam etc.
area will be brushed more than the single layer areas. As a result irregular fading
affect will be developed on the garments fabric surface.
Thus in this way fading affect may be developed on the garment by acid wash
technique
3. Objects of Acid Wash:
1. To produce irregular fading effects or old looking effect.
2. For soft feeling to wear the garments i.e. to improve softness.
3. To achieve the buyer washing standard.
4. To increase rubbing fastness
4. Process Flow Chart of Acid Wash:
Garments loading in machine
↓
De-size
↓
Extracting the garments
↓
Drying
↓
Soaking of pumice stone
↓
Damp pumice stone
↓
Neutralization the garments
↓
Softening
↓
Extracting the garments
↓
Drying
5. Acid Wash Process:
A processor Acid wash of 60 kg batch of Denim Trouser as mentioned below:-
First Step: Pretreatment/Desizing.
Add water @ L : R = 1 : 10 .............. 600 litres.
Start Machine.
Add desizing agent @ 1 gm/litre .................600 Gms.
Add detergent @ 1 gm/litre ........................ 600 Gms.
Temperature............................. 60°c.
Time........................... 20 mts.
Drop the liquor.
Rinse one for 3 minutes (cold).
6. Second Step: Hot wash
Add water @ L: R = 1: 10.............. 600 litres.
Temperature............................. 60°c.
Time........................... 5 mts.
Drop the liquor.
Here hot wash is used to remove the adhering materials from the garment surface.
Unload the garments from the washing m/c in the trolley.
Load the pre treated garments in the dryer m/c.
Dry the garment completely & unload the garments.
The pumic stones used for acid wash need to pre-treat in the following chemical
solution:
7. Water ..................... 100 L
Potassium per manganate.............. 1000 Gms.
Phosphoric Acid............................... 250 Gms.
Stire the solution in a stainless steel tub with dry pumic stone.
Soak the stones with the chemical solution ......... 10 –15 minutes.
The stones will pick up the solution. Then the soaked stones are dried in the
open air for.............. 2 to 3 hrs.
Then pre-treated garment 30 –40 kg per batch load in the dry washing
machine.
Load the per-treated stones (about 50 kg) in washing machine.
Start machine running for each batch ........................ 7 to 10 mts.
Stop machine running.
Unload the treated garment separately. Pumic stones with P.P. solution hit
on garment surface as a result fadding will be developed.
Then load the stones treated garment in another washing machine.
8. Third Step: Wash for Cleaning
Batch wt................................ 70 kg.
Add water @ L: R = 1: 8.............. 560 litres.
Add detergent @ 1 gm/litre .............560 Gms.
Temperature............................. 40°c -50°c.
Time ..................................10 mts.
Drop the liquor.
Here detergent is used to remove the breaking stone dust and
chemicals from the garment surface.
9. Fourth Step: Whitening/Neutralization
Add water @ L: R = 1: 8.............. 560 litres.
Machine running.
Add Metabisulphite @ 5 gm/litre..... 2800 Gms.
Cold temperature.
Time 5 mts.
Drop the liquor.
Fifth Step: Soft Wash
Add water @ L: R = 1: 7.............. 490 litres.
Machine running.
Add Acetic acid @ 0.6 gm/litre ..................... 294 Gms.
Add Softner @ 1 gm/litre ........................ 490 Gms.
Then unload the garments.
10. Sixth Step: Hydro Extractor Machine
Hydro extractor machine to remove excess water from the garments.
Seventh Step: Dryer Machine.
After hydro extraction the garments are sent to drying m/c for complete drying.
Eighth Step: Quality & Delivery.
After drying the garments go to quality checking & rectify washing fault and
then good one delivery.
11. Precaution:
Maintain the stock solution properly constant when comes socking the
stone.
No water licks age in to the machine when treated pumic stone &
garments in to the machine.
Not excess load the garments in the Acid wash processing.