1. According to specifications: simple, single, multi-person, multi-function.
2. Press function: ordinary, sofa bed, combination, intelligent massage.
3. Divided by style: America, Europe, Japan, China
4. Mattress classification: soft spring, water-filled, inflatable, foam latex, electric, palm, magnetic, smart massage.
Third, the main materials used in soft furniture:
1. Wooden, artificial board and metal constitute the main structure and basic shape of the sofa to meet the requirements of shape and strength.
2. Fully soft sofa support: proper hardness
3. Some exposed parts: beautiful wood grain, beautiful material and high hardness.
4. Multilayer board: 9, 12, 15, 18mm.
5. Fiberboard: less than 0.4g / cm3, medium density 0.4-0.8, 0.8-0.9.
6. Metal: high strength, good elasticity, good toughness, can be welded and forged, can be bent into different shapes, creating a variety of styles.
7. Spring: Provides excellent elasticity. After removing the pressure, the surface of the soft furniture can be restored to its original state. The comfort of soft furniture does not depend on the number of springs, but on the quality of the spring structure.
8. Foam: a lightweight plastic filled with gas, with a loose pore structure with sealed edges (the walls of the holes are not connected to each other) or a continuous pore structure (the holes are connected) Soft furniture is mainly soft polyurethane foam, usually called sponge, with more specifications and better elasticity. It is covered in spring. The manufacturing process is relatively simple, but the density cannot be lower than 25kg / m3, and other components should be greater than 22kg / m3.
9, sponge: conventional, high resilience, non-porous sponge.
10. Latex sponge: white elastomer formed by latex foaming. The thicker latex sponge is made of cylindrical concave holes on the back to reduce weight, which is more expensive and is usually used in high-end soft furniture.
