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Colour fastness is a term—used in the dyeing of textile materials—that characterizes a material's colour's resistance to fading or running.Colour fastness is the property of dyes and it is directly proportional to the binding force between photochromic dye and the fibre.
Absolute values of fading will depend on light intensity. Relative values of fading, comparing the sample with the standard blue test strip, will depend less on intensity. For example, if a pigment is rated as "BW5" it can be expected to fade to the same degree as strip number 5 on a bluewool test card, for any specific light exposure.
AATCC published its first four color fastness test methods in 1923. 1964. AATCC built and moved into the Technical Center in Research Triangle Park, North Carolina in 1964. 1965. AATCC began conducting test method training programs in 1965. Durable press testing was the most popular training initially offered at the Technical Center. 1966
The Kawabata evaluation system (KES) is used to measure the mechanical properties of fabrics. [1] The system was developed by a team led by Professor Kawabata in the department of polymer chemistry, Kyoto University Japan.
For example, if the lightfastness of the colourant is indicated to be 5 on the Blue Wool scale, it can be expected to fade by a similar amount as the strip number 5 in the Blue Wool test strip set. The success of the test can be confirmed by comparing the test strip set with the reference set that was stored protected from the light. [12] [13]
While fabric cleaning and maintenance may be simplified, some wearers experience decreased comfort. Dimensional stability (fabric), also known as shrinkage in fabrics is the change of dimensions in textile products when they are washed or relaxed. Durable water repellent, is a functional finish to make fabrics water-resistant (hydrophobic).
GPT stands for "Garment Package Test" and FPT stands for "Fabric Package Test" in garment and textile testing. Each buyer provides guidance for which tests are required at the fabric and subsequent garment stages. [19] The testing of fabrics offers a comprehensive review of the various tests that can be performed on fabrics. [20]
The Martindale method, also known as the Martindale rub test, simulates natural wear of a seat cover, in which the textile sample is rubbed against a standard abrasive surface with a specified force. The test equipment works in intervals of 5000 cycles, totalling the wear number (unit: Martindale) of abrasion cycles that leads to the material ...