The structure of a sofa chair mainly includes the following parts:
Frame: The frame of the sofa is the core part that supports the entire sofa, and is usually made of solid wood or metal. Among solid wood frames, larch and beech are more common materials because they are strong and durable. Metal frames often use iron or steel pipes, but you need to pay attention to whether recycled or inferior materials are used.
Springs and bandages: The springs commonly used inside the sofa are serpentine springs and pocketed coil springs. The serpentine spring is bent into a serpentine shape by a steel bar, and has good elasticity and durability; the pocketed coil spring is to put the spring in a non-woven bag to provide better support and comfort. Bandages are used to fix springs, and rubber bandages are commonly used to ensure the elasticity and stability of the sofa.
Filling: The filling of the sofa mainly includes sponges and high-elasticity sponges. High-density sponges provide good elasticity and support, while independent pocketed coil springs ensure uniform support for each part. In addition, down and fiber cotton are also commonly used to increase comfort and touch.
Surface material: The surface material of a sofa chair is usually cloth or leather. When choosing, you need to consider its wear resistance, tightness and color matching.