1. Pearl cotton: Pearl cotton is specially treated by high-pressure technology, with small molecules and elasticity in all sponges. Pearl cotton is compressed, and the texture is closely arranged into beads. With the use process, the internal stress of pearl particles will be gradually released, which is more fluffy with the use. Therefore, the pockets processed with pearl cotton are particularly plump and elastic. Pearl cotton is expensive, so it is generally only used for small pillows and waist pillows with strong contact frequency with customers.
2. Modeling cotton: the sofa cushion liner is a sponge with a special shape, and good manufacturers use plastic sponge to foam at one time. However, in order to save costs, many manufacturers use sponge scraps to stick into a whole piece and then cut it, which greatly reduces the service life and elasticity of the sponge. Thus affecting the service life of the sofa.
3. Glue-sprayed cotton: The glue-sprayed cotton in the sofa cushion has good plasticity. The longer the fiber, the better the quality. All the big pillows and cushions are covered with 35 density sponge. The use of cotton spraying can reduce the friction between fabric and sponge, increase the smoothness of sitting feeling, and make the lines of sofa look particularly soft and vivid.
4. Doll cotton: Because the pillow sponge needs to be soft and comfortable, it has a good supporting effect on the spine, so it is recommended to choose the special doll cotton for 3A filament with a density of 30. The texture of this sponge is close to that of natural cotton that has just popped up, but its flexibility and elasticity are more durable. Cotton is pure, environmentally friendly and has no peculiar smell.
5. Sponge: The process of sponge determines the density of sponge. At present, the density of sponge in China can reach but not exceed 35%. More than 35% of them are chewing gum products. Because the cost of resin products is quite expensive, some unscrupulous merchants artificially add talcum powder to increase the density of sponge in the production process. However, during the processing of fossil powder, a large number of components contain formaldehyde, toluene and so on. And it is fatal to the human body. And with the addition of fossil powder, it is easy to fall off. At the same time, the service life and performance of sponge are seriously damaged.
6. Down filler: good bulkiness. When used as a sofa filler, it feels more comfortable than ordinary sofas, and it is not easy to deform after long-term use, and its service life is longer. However, this down sofa has slow rebound and high production cost, so it is generally used as a sofa or cushion with sponge.