Simple Garment Stone Washing Procedure

STONE WASH 

This is just a process to abrade the surface of the garments randomly with the help of stones to get different worn-out effects, especially used on denim garments. According to the required severity of effect, the size, amount of stones and the duration of process would change.

Stones Type:

• pumice rock
• volcanic rock
• man-made substrates 

Property of Stones:

• Hardness of stones
• Size of stones
• Shape of stones
• Porosity of stones
• Dusting ability of stones

Applications

• large, hard stones which last longer for heavy fabrics
• smaller, softer stones for lightweight and more delicate fabrics
• ratio of stone weight to fabric weight = 021 up to 3:l

TYPICAL PROCEDURE FOR STONE WASHING

1- Load garments and stones ( load to 30-50% of normal machine capacity)

2- Desize if needed with

- detergent plus enzyme for starch

- oxidative desize

3- Rinse

4- Stone wash (with or without bleaching agent)

5- Rinse

6- Soften

7- Extract

8- Unload garments, remove stones from garments

9- Tumbledry

Notes:

a- Backstaining or color deposition can be reduced by a- adding dispersantlsuspension agent to wash cycle

b- intermediate replacement of wash liquor

c. use of alkaline detergent (sodium perborate with optical brightener

as an afterwash