The Selection and Characteristics of Sofa Filling Materials

The Selection and Characteristics of Sofa Filling Materials

The material used to fill the inside of a sofa determines its softness, hardness, elasticity, resilience, and insulation. Sofas are typically filled with the following materials:

  • Sponge: Sponge, a porous polyurethane foam, is the most commonly used filling material for sofas. Sponges come in different densities and hardness levels. Generally, the higher the density, the firmer the sponge, the better the resilience, and the stronger the durability. Sponges also come in different types, such as regular sponge, high-resilience sponge, and irregular-hole sponge, each with its own characteristics and pros and cons.
  • Down: Down is a natural animal fur, which is a higher-grade filling material for sofas. Down is soft, breathable, warm, and slow to rebound, providing a comfortable sitting experience. Down is often used in combination with sponge or for making cushions and pillows. Down is relatively expensive and is generally divided into goose down and duck down, with goose down being of better quality.
  • Synthetic cotton: Synthetic cotton is a type of man-made fiber and is a cheaper filling material for sofas. Synthetic cotton is soft, comfortable, and easy to care for, but it has poor mechanical properties, low compression load, is prone to deformation, and is not suitable for cushions. It is generally only used for making pillows.
  • Latex: Latex is a natural rubber juice and is a relatively novel filling material for sofas. Latex is soft, elastic, conforms to the body, breathable, antibacterial, and dust mite resistant, providing a healthy sitting experience. Latex is often used in combination with sponge or for making cushions and pillows. Latex is also relatively expensive and is generally divided into natural latex and synthetic latex, with natural latex being of better quality.
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