SATRA STD 442 Colour fastness to water and perspiration
The fastness of colour when subjected to water and perspiration is a constant problem for manufacturers of footwear uppers and clothing and it can have disastrous and costly results. Materials can be checked easily and quickly using the equipment below to assess the likelihood of colour bleeding from a material when exposed to water or perspiration.
The test requires the material to be immersed in water or perspiration while in direct contact with standard materials. A weight is used to ensure the specimen is kept below the surface of the liquid throughout the duration. The specimen is subjected to a temperature equal to body temperature by a fan-assisted oven.
The test requires several items of equipment as described below: