Main Industrial Application Scenarios of Pressure Sensitive Paper

　　Pressure sensitive paper, also referred to as pressure test paper, serves as a vital quality testing consumable across diverse industries. In automotive manufacturing, it is used to check gasket sealing pressure, fuel cell stack clamping uniformity, brake contact surfaces and bolt joint pressure distribution. It helps engineers identify uneven clamping and avoid leakage risk in engine and new energy battery assemblies.

　　In electronics and semiconductor industries, pressure sensitive paper is widely used for display lamination, wafer bonding, heat sink assembly and SMT press roller inspection. During OLED and LCD panel lamination, uniform pressure is essential to eliminate bubbles and improve product yield. It also helps verify die bonding pressure in chip packaging, preventing component damage caused by local overpressure.

　　Printing and papermaking industries adopt pressure test paper to test nip roller pressure. Engineers insert the film between paired rollers to check contact uniformity. Dark uneven marks indicate roller wear or misalignment, which will cause inconsistent printing ink transfer or uneven paper thickness. The same method applies to calendar rollers, coating rollers and film slitting equipment in roll-to-roll production lines.

　　Other sectors include aerospace, mold manufacturing, medical devices and packaging. Aerospace engineers use it for composite material layup and aircraft bolted joint inspection. Plastic injection molders use pressure sensitive paper to debug mold clamping force. Medical manufacturers test clamping pressure of medical fixtures. Packaging factories verify heat sealing pressure to guarantee seal integrity. It provides a low-cost, fast pressure visualization solution for product development and routine quality control.