High quality pearl cotton has a very high density, but the volume of the bubbles is very small. The shape of the bubbles should be very uniform and round. Only with such pearl cotton can the elasticity be better, and the overall pressure capacity will be relatively uniform. High quality pearl cotton will gradually bounce and recover to its original thickness after being subjected to heavy pressure, but defective pearl cotton will not achieve this effect.

The density of defective pearl cotton bubbles will be relatively small, and the bubbles will be relatively large. After receiving heavy pressure, the pearl cotton will become thinner and the recovery will become worse. The physical and chemical properties of defective pearl cotton will also decrease, and its insulation and seismic resistance functions will deteriorate.

Specific methods for determining the quality of pearl cotton:

The first point is the softness of pearl cotton. Pearl cotton with higher quality will have a softer texture, as only pearl cotton with stronger softness will show more of its high-quality characteristics during use. For example, it can better protect the product during the entire transportation process and prevent it from being damaged due to shaking during transportation.

2、 It's the insulation properties of pearl cotton. Many items in daily life come in various forms, and there are many specific products that have high temperature requirements during transportation. Due to the unique properties of pearl cotton, it has excellent insulation and heat preservation properties. Therefore, the quality of pearl cotton also needs to be tested in terms of insulation and heat preservation properties. This is also very important.

3、 It's the waterproofing of pearl cotton. The quality of pearl cotton can also be judged through the testing of its waterproofing. As no matter what product it is, waterproofing is required during transportation and packaging. Therefore, there are very high requirements for the waterproofing of pearl cotton, especially for some products that cannot take up any water during transportation. Therefore, when selecting good pearl cotton, its waterproofing should be tested.

4、 It's the weight of pearl cotton. In the same volume of pearl cotton, with equal thickness, length, and width, the lighter the pearl cotton, the better its quality. As the lighter the weight, the larger the volume of pearl cotton under equal weight, the better the buffering effect will be.

After reading the above, you should be able to distinguish between high-quality pearl cotton and defective pearl cotton, right? By paying more attention to identification in daily life, you can better grasp the method of identifying the quality of pearl cotton.

The article originates from Heshan Pearl Cotton: http://www.hshongli.com