Sofa cushion material
The material of the sofa cushion is mainly cotton cloth, plant fiber or plush inside, in order to increase the comfort of the sofa. High-grade sofa cushions should use high-elastic foam sponges with a density above 30 kg/m3, and back cushions should use high-elastic foam sponges with a density above 25 kg/m3. In order to improve the comfort of sitting and lying, some foams have been soft treated without reducing the density, and some have vertical springs in the cushions, so that the sofa has higher resilience and anti-aging performance. Under normal circumstances, it is best to dent the sofa cushion about 10 cm after the human body sits down.
There are many types on the market, and the main classifications are: cotton, plush, linen, chemical fiber, plant fiber, etc.