Pearl cotton is specially processed by picking and pressing techniques. It is a spherical cotton that is smaller in sponge and has high resilience. Pearl cotton is compressed and placed in a tight bead like texture. As it is used, the internal stress of its pearl particles gradually releases, resulting in a more fluffy and fluffy appearance. Therefore, waist bags made of pearl cotton have a particularly good fullness, smooth hand feel, warm and comfortable texture, and strong resilience. But now pearl cotton is widely used in industrial production for sound insulation, thermal insulation materials, agricultural insulation materials, floating equipment for aquaculture, and protective pads for sports equipment. Pearl cotton is also widely used as an elastic lining for handbags and bags. Lifesaving devices for water operations, floor decorations, liners, and more for homes and hotels.

PP cotton: also known as filling cotton, doll cotton, or hollow cotton. The raw material is polyester staple fiber, mainly consisting of two types: regular fiber and hollow fiber. Due to the lack of breathability of synthetic fiber raw materials, they are prone to deformation and clumping over time, lacking elasticity, resulting in uneven pillows, especially some defective cotton produced by small manufacturers used for filling. So, it is recommended that you choose pearl cotton when choosing toys and pillows, as cheap fiber pillows are prone to deformation.
PP cotton is relatively cheap, while pearl cotton is more expensive in price. Pearl cotton has better softness than PP cotton, so it is certainly better for pillows, but PP cotton is also good.
The advantage of pearl cotton compared to PP cotton is its good elasticity and non caking properties.
Which one do you think is good?
Article source: Heshan Pearl Cotton http://www.hshongli.com/