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what is the difference between snagging and pilling test standards?
2023/08/21
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Snagging and pilling are two test methods commonly used in the textile industry to assess the quality of fabric surfaces. Although they are both related to the appearance characteristics of textiles, there are some differences between snagging and pilling test standards in terms of test purpose, test method and evaluation criteria. The following is a detailed description of the two test standards:
1. Snagging test standard:
The snag test is used to evaluate the snagging condition of the fabric surface, that is, the appearance of raised or stretched fibers on the surface of the fabric. These protrusions can cause an uneven fabric surface, affecting appearance and comfort. Snagging test standards usually include the following aspects:
a. Evaluation method: The snagging test is usually performed by manual visual inspection. An experienced inspector looks at the surface of the fabric and evaluates it based on the degree and density of snagging.
b. Evaluation Criteria: Snagging test standards are usually based on the number and length of snagging to evaluate the quality of the fabric surface. In general, the fewer the number of snags and the shorter the length, the better the quality of the fabric.
c. Reporting Results: The results of the snagging test are usually reported as a snagging index or snagging rating. The lower the index or grade, the less snagging on the surface of the fabric and the better the quality.
1. Pilling test standard:
The pilling test is used to evaluate whether the fabric is prone to pilling during use, that is, small particles or balls appear on the surface of the fabric. Pilling can degrade the fabric's appearance and give it an untidy appearance. Pilling test standards usually include the following aspects:
a. Evaluation method: Pilling tests are usually performed using laboratory equipment such as the Martindale Pilling Tester. The instrument rubs a fabric sample against a standardized wear material to simulate wear and tear during everyday use.
b. Evaluation Criteria: Pilling test criteria are usually based on the number, size and density of pilling to evaluate the quality of the fabric. In general, the lower the number of pills, the smaller the size, and the lower the density, the better the quality of the fabric.
c. Reporting Results: The results of the pilling test are usually reported as a Pilling Index or Pilling Rating. The lower the index or rating, the less pilling problems the fabric has and the better the quality.
To sum up, snagging test and pilling test are two different methods to evaluate the surface quality of textiles. The snagging test mainly focuses on the snagging on the surface of the fabric, while the pilling test mainly focuses on the pilling of the fabric during use. Both test standards help manufacturers and consumers understand the appearance quality of fabrics and make better choices.
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