PRESSURE MEASUREMENT PLATES AND METHODS FOR MANUFACTURING PRESSURE MEASUREMENT PLATES

Abstract

The term "light-shielding" refers to a set of plates used to measure pressure in which deformation and coating peeling are unlikely to occur, even during use at high temperatures; The method for producing the pressure measuring plate set includes: the first plate, comprising the first support layer, the adhesive layer, and the first layer consisting of encapsulated microcapsules containing the coloring agent and binder in this order; and the second plate, comprising the second support layer and the second layer consisting of the coloring agent, in which each of the first and second support layers is a polyethylene naphthalate plate or an aromatic polyimide plate; the adhesive layer consists of resin XI with at least one selected group including an aromatic group, ester linkage, and imide linkage; the capsule walls of the microcapsules consist of resin Y1 with an aromatic group; the binder in the first layer has an absorption peak with a peak maximum in the range of 3200 to 3500 cm*1 in the infrared absorption spectrum or is cross-linked; and the thickness of the first layer is greater than or equal to 0.2 μuχ.