LLLLW 320mm x 3m (4LW Dual-Piece Micro-Pressure Type)

Product Information Model: 4LW (micro pressure)Sheet type: Double sheet typePressure testing range: 0.05MPa~0.20MPaShelf life: 1 yearFunction: This product can characterize the distribution of pressure by the uniformity of color;The color density value can directly characterize the corresponding pressure value. Product features (1) Convenient and intuitive inspection of the distribution and uniformity of applied pressure.(2) Different color densities correspond to the magnitude of applied pressure, and thepressure value can be determined through the standard pressure density curve.(3) Fast measurement speed, clear and intuitive image after pressing. Product features Product structure and working principle Stick the coating surface of L sheet together with the coating surface of K sheet. After applying pressure, the microcapsules carrying the color substance on the L plate ruptured, and the color substance reacted chemically with the corresponding K plate chromogenic agent, presenting a red color. The degree of microcapsule rupture is determined by the amount of pressure applied. The higher the pressure, the more microcapsules are damaged, and the higher the color density. On the contrary, the lower the hair color density. Standard Pressurization Conditions Pressure Distribution and Pressure Value Measurement Methods Pressure Distribution Using Pressure Test FilmBased on the changes in pressure, the red density of the film changes. The deeper the red color, the higher the pressure; the lighter the red color, the lower the pressure. When observing, place the colored K-film with the glossy PET side facing up on a white piece of paper in a well-lit area. Using Pressure Test Film with Standard Pressure Density CurveTo determine a specific pressure value, refer to the standard color sample of the pressure test film and the standard pressure density curve. By considering the temperature and humidity conditions during pressurization and the pressurization type (continuous or instantaneous), you can select the appropriate standard pressure density curve...