1. Rubbing color fastness: Rubbing fastness refers to the degree of color fading of dyed fabrics after rubbing, which can be both dry rubbing and wet rubbing. Rubbing fastness is evaluated based on the staining degree of white cloth, and is divided into 5 levels. The larger the value, the better the rubbing fastness.
2. Sunlight fastness: Sunlight fastness refers to the degree of discoloration of colored fabrics under the action of sunlight. The test method is to compare the fading degree of the sample after simulating sunlight exposure with the standard color sample. It is divided into 8 levels. Level 8 is the best result and level 1 is the worst. Fabrics with poor sun fastness should not be exposed to the sun for a long time and should be placed in a ventilated place to dry in the shade.
3. Sublimation fastness: refers to the degree of sublimation phenomenon that occurs in dyed fabrics during storage. The dye fastness of normal fabrics generally requires level 3-4 to meet the needs of wearing.
4. Washing fastness: Washing or soaping fastness refers to the degree of color change of dyed fabrics after being washed with washing liquid. The gray graded sample card is usually used as the evaluation standard, that is, the color difference between the original sample and the sample after fading is used for evaluation. Washing fastness is divided into 5 levels, with level 5 being the best and level 1 being the worst. Fabrics with poor washing fastness should be dry cleaned. If wet cleaning is performed, extra attention should be paid to the washing conditions, such as the washing temperature should not be too high and the washing time should not be too long.
5. Perspiration fastness: Perspiration fastness refers to the degree of color fading of dyed fabrics after being immersed in sweat.
6. Ironing fastness: refers to the degree of discoloration or fading of dyed fabrics when ironed. </p
