Microfiber Instrument Panel Surface for UV Resistance and Low Haze

The patent uses a composite binder system combining polyurethane resin with specific additives (hindered amine light stabilizer at 0.1-5% by mass and UV absorber at 0.1-5% by mass) to create a material that maintains the aesthetic qualities of microfiber while providing superior light resistance. This composite approach allows the binder to protect the microfiber structure from UV degradation without compromising its soft touch and elegant appearance.

The patent optimizes the concentration parameters of light stabilizing agents to resolve the contradiction. By limiting the hindered amine light stabilizer content to 0.1-5% by mass and UV absorber to 0.1-5% by mass (both relative to polyurethane resin), the formulation achieves sufficient light fastness while preventing excessive glass haze that would cause fogging. This parameter optimization allows simultaneous achievement of light resistance and clarity.

The patent employs a composite formulation using polyurethane resin as the base binder combined with microfiber and specific functional additives. This composite structure provides the durability needed for instrument panels while the microfiber component contributes soft touch and elegant appearance. The combination achieves both mechanical strength and aesthetic quality that neither material could provide alone.

The patent uses polyurethane resin as an intermediary binder material that protects the microfiber from direct exposure to high temperatures. The polyurethane resin has better heat resistance than the microfiber, acting as a protective matrix that prevents volatilization while allowing the microfiber to maintain its soft touch and aesthetic qualities on the surface.