Detailed analysis of the problems encountered in the circular path pilling test method

Product Description:

Pilling in clothing has always been a concern for consumers. This affects not only the appearance, but also the durability of clothes. In order to regulate the market and protect the interests of consumers, the National Committee for Administration of Standardization issued a series of standards for testing pilling GB/T4802-2008  Determination of pilling properties of textile fabrics , including GB/T4802.1 - 2008  Determination of ball properties of textile fabrics with pilling, part 1: The circular locus method is widely used. The following discusses issues to consider with this test method.

1 The Pilling Count

The pilling count refers to the number of circular path pilling testers during the test of pilling The number of frictions between the brush and the sample; the number of pilling is dference to the number of frictions between the middle touch of the circular pilling instrument and the sample during the pilling test. When testing garments or fabrics for circular path pilling, the product standard usually takes precedence. If the product standard does not specify the number of pills, the test should be carried out according to the provisions of GB/T4802.1-2008 for different fabrics.

When testing garments or fabrics for circular path pilling, the product standard usually takes precedence. If the product standard does not specify the number of pills, follow GB/T4802. 1-2008 to test the determinations of different substances.

The relevant provisions of the current standard GB/T4802.1-2008 on the pilling number of substances are listed in Table 1.

Table 1 Pilling Test Parameters and Examples of Fabric Typess applicable

There is a fuzzing process in the circular path pilling method. There are mainly two things to consider: one is that when the laundry is washed by hand, many clothes will be scrubbed with a brush; in contrast, with plain furniture, the likelihood of the fabric pilling is relatively high. In the modern laundry process, most of them are already washed by washing machines, and brushes are rarely used to scrub clothes, and the furniture they come into contact with when worn is relatively smooth and do not generate a force similar to hair. As a result, the movement of the hairs in the fabric is relatively strong when tested, resulting in more pilling than when worn continuously. Therefore, when you actually wear the fabric, there will be no problem, but when testing, it will not meet the demands.ences of the standard.

2 Standard fabrics

The standard fabric specified in GB/T4802.1-2008 is wool gabardine 2201 It is produced when used in clothing, more friction between fabrics, eg. B. between two trouser legs, armholes and friction with furniture, eg. B. buttocks and sleeves. Therefore, of course, it doesn\'t make sense to rub against test fabrics with standard fabrics. so that it is more like friction in actual use.

3 Assessment of light boxes

GB/T4802.1—2008 also has clear requirements for light boxes that The performance and the distances between the lamp and the sample plate are regulated because the distance between the sample and the light, the angle at which the light shines on the sample or if the light can shine directly on the eyes affect the results of the assessment. Observe the pilling condition ofe the specimen when the angle of light differs from that of the light. The photos taken when the angle of light is irradiated on the sample are respectively 15°, 45° and 90°. The difference is very large, so it is recommended to use a standard light box for the evaluation and request it according to the standard change to a suitable angle instead of using other light boxes or natural light to the place.

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