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How to accurately identify the quality of sponge?

2022-08-04 18:01:11
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How to accurately identify the quality of sponge?

1. Look directly at the appearance: After a good packaging sponge is formed, the front and rear proportions are relatively symmetrical, which will give people a visual experience of beautiful structure. In addition to the special chaotic and large-empty sponges that we usually come into contact with, generally speaking, the smaller the appearance of the sponge, the smaller the pores, the better.

Second, the softness and degree of hand feeling: the sponge with good quality can rebound quickly, and the fluffy sponge is better, because the good sponge has strong elasticity, it can effectively prevent shock, scrub, etc. If it feels abnormally stiff, it is an inferior sponge product. Conducive to the protection of items.

3. Tensile performance: High-quality sponges generally have a tensile elongation rate of 80%. If it cannot reach the level, it means that the quality of the sponge is average, and the daily use cannot be very breathable, which is not conducive to the storage of long-distance transportation items.

4. Odor identification method: Generally speaking, a good quality sponge will not have a unique unpleasant smell, and the unpleasant smell indicates that it is made of inferior materials.

5. Comparison method of tearing degree: good quality sponge is elastic, clean and odorless, hold it tightly and release it with your hand, the more obvious the rebound, the better, while the low-priced sponge is dark in color, pungent in taste, and easy to fall off when torn. If the sponge is not easy to fall off by tearing it back and forth, it means that the quality is OK.



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