Office Chair Material Ratio
The material ratios of some components of the office chair are as follows: The plastic for the headrest and back frame main body uses PA material + 30% fiber; the lumbar support and armrests use a new polymer material, TPEE, with no specific ratio mentioned.
PA material, also known as polyamide and commonly called nylon, is a common engineering plastic with good mechanical properties, wear resistance, heat resistance, and chemical stability. Using PA material in the headrest and back frame main body of an office chair and adding 30% fiber, usually glass fiber, can significantly enhance the strength, stiffness, and heat resistance of the PA material, while reducing its shrinkage rate and improving dimensional stability. This enables the headrest and back frame main body to withstand a certain amount of pressure and impact without deforming easily, ensuring the stability and comfort of the office chair during use. For example, when using an office chair for a long time, the headrest and back frame need to bear the pressure from the user's head and the leaning force from the back. The combination of PA material + 30% fiber can provide sufficient support and reduce physical discomfort caused by material deformation.
The new polymer material TPEE used for the lumbar support and armrests is a thermoplastic elastomer. It combines the elasticity of rubber with the processing properties of plastics, having excellent flexibility, impact resistance, oil resistance, and chemical corrosion resistance. Although no specific ratio is mentioned, this material is chosen to meet the requirements for comfort and durability of the lumbar support and armrests. The lumbar support needs to fit the curve of the user's waist, providing good support and relieving waist pressure; the armrests need to have a certain degree of softness to make the arms rest comfortably, while also having sufficient strength to bear the weight of the arms and frequent use. The characteristics of TPEE material make it very suitable for the manufacture of these two components, providing users with a good user experience.
