Advances and problems in pilling characterization technology

Pilling is the main appearance of wool fabrics and most chemical fiber fabrics, almost always unavoidable in textile clothing, so the quality of fabrics Any attempt to measure or reducing pilling must confront how to correctly measure the pilling of fabrics. The existing pilling evaluation is mainly performed on the abrasion of the formed fabric and is performed on the amount of pilling. Although it is said to be pilling, pilling is not evaluated, it is only about pilling. Since it is a fabric evaluation, it can only be a delay measurement, i.e. the fact has already happened. In addition, the yarns are first woven into fabric samples and then worn, compared and assessed. The so-called prediction technology is to establish the relationship between certain parameters and pilling based on experiments and discussions, and follow ups predict the possibility of pilling based on these parameters, such as using artificial neural networks to predict the pilling trend of fabrics. , the basic status quo is based on sensory evaluation and the results and data of experience are parameters.

Existing Pilling Methods Pilling is a process, and the usual expression is: fluff-entanglement-piles-shedding. Therefore, the fluff comes first and the pilling is formed after it is entangled into a ball. When the ball is formed more than the ball falls off, the fact of pilling will appear. It can be seen that pilling is a pre-requisite and necessary condition so that pilling can be predicted. Pilling is the appearance of the fabric, and it is the evaluation characteristic value of quality or use value.

Characterization and method of pilling

For a long time people have been accustomed to the final pilling result of the fabric The ability of the fabric to pill and pill, so the characterization of lint or the expression of the pilling mechanism is ignored. By tracking the rotating abrasive and using time-lapse microphotography, some researchers have studied the initial fiber entanglement phase of pilling and characterized the pilling process in the early phase of pilling. Gintis and Mead based on the generation and extraction of perihairs. fuzz formation mechanism, but no detailed actual entanglement mechanism is given.

Pilling method and application

From the method of fabric pilling, there are several devices. Although the specific devices of these pilling methods differ, the purpose is to simulate the actual wearing situation of the fabric and to compare the anti-pilling properties of different fabric samples under the same conditions. The methods generally includen RandomTumbpillingTest, ICIPilling-BoxTest , MartindaleAbrasionTester, circular web pilling and elastomer cushion method. , Inflated Diaphragm Tester), Brush-pinning Tester, Appearance-retention Method and HATRA (The Hosiery and Allied Trades Research Association) pilling tester, etc. At present, the most commonly used pilling testers are the ICI pilling box method and the random tumbling pilling tester, and the Martindale abrasion tester is also widely used because it can also be used to test the abrasion resistance of fabrics. is to simulate the pilling process of the fabric in the actual wearing state as much as possible. After the fabric pills through the actual wear or pilling test, the pilling degree of the sample should be evaluated.

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