What's the stuff in the sofa? Is it a sponge?
Sponge。 Which can be divided into three types: conventional sponge, is characterized with elasticity, softness, good permeability; high resilient foam is characterized with good elasticity, compression load, fire resistance, good air permeability; arbitrary hole sponge, which is a kind of inner pore sizes with natural seaweed similar to the sponge, is characterized by good elasticity, compression and rebound when the buffer is excellent;
It's man-made cotton. Made of artificial cotton sofa stuffing, soft and comfortable, comfortable seat, but poor mechanical performance, compression load is small, only cushion.
Down。 Usually used in advanced sofas or in combination with sponges. The sofa is a feather, feather (including 5% cashmere) as a filler to make a sofa sofa, each and every local use of feathers which are different specifications and different proportion, instead of the traditional local sponge and silk. According to the principle of down sleeping bag, the wooden wooden frame is wrapped up, and the outer layer is sheathed with a commoner coat. The formation of a can and can sit more comfortable and products, compared with cotton sofa, down sofa sitting comfort, small deformation and long-term use, service life than the general long sofa;
