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SUBSTITUTES FOR STAIN REMOVAL IN THE TEXTILE INDUSTRY |
Stains are unwanted coloration in fabric/garment caused by external sources. The textile materials are processed in series of machineries from raw material (fibre) stage to finished product (garment) during which oily and handling stains can occur. |
By spraying a suitable solvent, like CTC, on the material the stains are dissolved and removed. Alternatively, detergent solutions also exist, however these require some additional time for drying process at the end of the stain removal exercise. There are many cost and performance effective solvents and detergents available. Solvents are popular in industry due to its fast action and quick natural drying.
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Extensive studies have been conducted with simulated and industrial stains under different conditions. The most common solvents are listed in Table below. |
Sl. No |
Solvent |
1 |
Acetone |
2 |
Hexane |
3 |
Isopropyl alcohol |
4 |
Mineral Turpentine Oil |
5 |
Perchloro Ethylene |
6 |
White Petrol |
HAZARDS TO CONSIDER
Every substance has limitations. While every solvent is toxic to a certain extent, the harmfulness varies from one substance to another. A given substance may be hazardous on skin contact, be a fire hazard, harm the environment and / or cause cancer (i.e. red category. Knowledge on the hazard ratings will help industries to take appropriate preventive measures and detailed information on hazards and control measures are provided in the TA.
FURTHER INFORMATION
A detailed technical document titled "Selection and Safe Use of Alternatives to CTC - Textile Stain Removal" has been published and is available for download.
Download the document here
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Disclaimer
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The results presented on this page reflect the outcome of tests carried out under controlled laboratory conditions. While all necessary care has been taken during this process, no guaranty can be given that the same results can be reproduced under different conditions. The test methodology is based on a generic procedure which was not optimised for a specific industrial process. Such optimisation may result in
modified outcome. Any trade name or commercial product mentioned here does not constitute an endorsement or recommendation by GTZ
and Textiles Committee.
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All fabric samples have been inspected for possible damaging side effects of stain removing agents. No damage or significant loss of fabric strength has been detected. Nevertheless, GTZ
and Textiles Committee decline responsibility for any damages caused by the
application of any of the products listed. It is recommended that products
be tested and evaluated prior to any large scale application.
Ü
For some products, particularly solvents, a
toxicity profile has been prepared informing of potential health risks
associated with their usage. The unavailability of such profile does not
indicate the absence of health risks. It is recommended that prior to use of
any substance the Material Safety Data Sheet from the manufacturer be
consulted for potential risks.
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