Sunlight fastness: Sunlight fastness refers to the degree to which colored fabrics change color under the action of sunlight. The testing method is to compare the fading degree of the sample after simulating sunlight exposure with the standard color sample, and divide it 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 sunlight for a long time and should be placed in a well ventilated and dry place.

Washing fastness: Washing or soaping fastness refers to the degree of color change of dyed fabrics after washing with washing solution. Usually, a gray grading sample card is used as the evaluation standard, which relies on the color difference between the original sample and the sample after fading for evaluation. The washing fastness is divided into 5 levels, with 5 levels being the best and 1 level being the worst.  Fabrics with poor washing fastness should be dry cleaned.  If wet cleaning is carried out, double attention should be paid to the washing conditions, such as the washing temperature should not be too high and the time should not be too long.

Friction fastness: Friction fastness refers to the degree of color loss of dyed fabrics after friction, which can be both dry and wet friction. The rubbing fastness is evaluated based on the degree of staining of white cloth, which is divided into 5 levels. The larger the value, the better the rubbing fastness.

Sweat fastness: Sweat fastness refers to the degree of color loss of dyed fabrics after small immersion in sweat.

Ironing fastness: refers to the degree of discoloration or fading of dyed fabrics during ironing.

Sublimation fastness: refers to the degree to which sublimation occurs during storage of dyed fabrics. The dyeing fastness of normal fabrics generally requires a level of 3-4 to meet the wearing needs.