Understanding ISO 105 C06 and Washing Fastness TesterNov 30, 2025
Understanding ISO 105 C06 and Washing Fastness Tester
Color fastness testing is a very important indicator in textile testing. Textiles often face multiple external factors such as washing, rubbing, light exposure, and sweat during daily use, and the influence of washing is the most common. Therefore, “washing color fastness” is one of the essential testing items.
Among the numerous color fastness standards, ISO 105 C06 is the most widely used and highly recognized international standard. It is known for its high rigor and clear parameters and is widely adopted by many testing institutions.
To ensure accurate and reliable test results, it is necessary to use professional equipment designed in accordance with the standard, namely the ISO 105 C06 Washing Fastness Tester. GESTER wash fastness tester design parameter conform to ISO, BS, AATCC, JIS & SDC those standards.
1. What is the ISO 105 C06 Standard?
Part C06: Colour fastness to domestic and commercial laundering
This standard applies to the color fastness to washing test for various textiles in any processing state, focusing on evaluating the color change and staining of textiles under simulated household and commercial laundering processes.
The testing principle is based on simulating actual washing conditions: washing, rinsing, and drying textile specimens together with specified adjacent fabrics. By controlling parameters such as temperature, alkalinity, bleaching action, and mechanical friction, reliable test results can be obtained within a reasonable period. The mechanical friction effect is achieved through a shorter liquor ratio and an appropriate number of steel balls.
2. Why We Need To Test Colorfastness to Washing?
The clothing items we use daily must be washed several times before we throw them in the dustbin or recycle bin. So, the items may fade or self-stain after washing if their fastness property is not up to the mark. That’s why all the manufacturers try to maintain the wash fastness criteria provided by the retailers before exporting the goods.
3. Core Testing Equipment: Colour Fastness Tester
The Washing Fastness Tester apply to test dyeing textile color fastness changing degree after washing, it not only do washing color fastness and also dry washing color fastness test.
This Automatic colour fastness to washing tester’s box and its test cup adopt stainless steel material, it have anti-high temperature, acid-base, corrosion functions.
Colour fastness to washing equip with door safety switch, can protect from burning or injured.
Equip with auto temperature & time control, it has alarm hint while experiment ending.
4. Why do we need to equip ISO 105 C06 Washing Fastness Tester?
Enhance product quality and reduce return rate Stable color fastness quality can reduce after-sales complaints and improve brand reputation.
Improve testing efficiency and save costs The automated system can perform high-frequency tests, replace manual testing, and reduce time and errors.
Establish an in-house laboratory and enhance competitiveness Having complete testing capabilities is an important condition for large customers to select suppliers.
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