The color fastness of the lifting belt is the color fastness (referred to as color fastness), which simulates the fading degree of the lifting belt under the action of external factors during use (extrusion, friction, washing, rain, exposure, light, seawater impregnation, saliva impregnation, water stain, water stain, etc.).Endless Lifting Straps
Sweat stains, etc.), is an important indicator of the lifting belt.
The test of color fastness generally includes color fastness to light, to weather, to washing, to rubbing, Endless Lifting Straps to sweat, etc. Sometimes there are some special requirements for color fastness according to different hoisting belts or different use environments. Usually when the color fastness test is performed, it is the degree of discoloration of the stain and the degree of staining to the paste.
1. Sun fastness: sun fastness refers to the degree of discoloration of the colored hoisting belt by sunlight. The test method is to compare the fading degree of the sample with the standard color sample after simulating sunlight. It is divided into 8 levels, 8 levels are good results, and 1 level of difference. The hoisting belt with poor insolation 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. Friction fastness: Friction fastness refers to the fading degree of the dyeing hoisting belt after friction, which can be dry friction and wet friction. Endless Lifting Straps Rub fastness to white cloth color degree as the evaluation principle, a total of 5 levels, the greater the value, indicates the better rub fastness.
For hoisting belt color to test whether its color is qualified, there is a simple and practical test method, that is to use white paper in the dye
The repeated and vigorous rubbing of the colored ribbon
, after the white paper has not been dyed to determine the dyed ribbon
Whether the color fastness of.
Post time: Oct-26-2022