How to test the color fastness to washing and dry cleaning of zippers?

Zipper is a commonly used accessory in textile processing, and its color fastness is one of the important indicators to measure its quality. Washing and dry cleaning are common cleaning methods, so it is necessary to test the color fastness to washing and dry cleaning of zippers. The following are the steps to choose the appropriate method to test the color fastness to washing and dry cleaning of zippers:

1. Determine the test criteria. According to the region and product type, select the corresponding test standard. Common testing standards include ISO, GB, AATCC, etc.

 

2. Select the test method. According to the test standard, select the appropriate test method. Common testing methods include:

 

- Washing color fastness test method: use standard washing machine and detergent, put the sample and the color card into the washing machine for washing, and then use the gray scale card to compare the color difference between the sample and the color card.

 

- Test method of color fastness to dry cleaning: use a standard dry cleaning machine and dry cleaning agent, put the sample and the color card into the dry cleaning machine for dry cleaning, and then use the gray scale card to compare the color difference between the sample and the color card.

 

3. Prepare the sample. According to the test standard, prepare the corresponding samples. Usually, the zipper needs to be cut to length, and then the sample is fixed on the testing machine.

 

4. Run the test. According to the requirements of the test method, put the sample into the testing machine for testing. Test results should be documented in the test report.

 

5. Analyze the test results. According to the test results, evaluate whether the color fastness to washing and dry cleaning of the zipper meets the standard requirements. If the test results do not meet the requirements, adjustments or material replacement is required.

 

In short, choosing the appropriate test method to test the color fastness to washing and dry cleaning of zippers is an important step to ensure product quality. During the test process, the test standards and methods should be strictly followed to ensure that the test results are accurate and reliable.