The surfaces of plastic products are transcribed with various textured patterns. During the transcription process, defects such as inhomogeneous transcription often occur, damaging the product exterior. In this research, several textured patterns were transcribed on the surface of glass by corrective reproduction. From the filling process, pressure holding and cooling process to demolding process, visualization of contact conditions between resin and textured surfaces was realized using a high speed video camera, glass-inserted mold, and new illuminator inside the mold. In the experiments, two types of textured surfaces were transcribed. During the filling process using matt finish textured patterns, the luminance of black resin contacting the textured patterns increased temporarily after the flow front passed dents on the surface due to the degassing of trapped air inside the dents, which caused the resin to float. Observation of the product surface using laser microscope indicated that this degassing phenomenon causes streaks on the product surface. In the inclined demolding process, demolding delay was observed. This demolding delay on the confronting side of the ejector pin was found to cause whitening defect on the surface of molded products. During the filling process using leather textured patterns, after the flow front of black resin passed the dents of the textured surface, the resin was found to continue filling into the dents asymmetrically due to the counter force of trapped and compressed air. In the inclined demolding process, indistinct demolding border contour profile was observed and confirmed to cause whitening and blushing defect. The demolding delay of cooled resin along the side of demolding direction is observed under a long distance microscope. The cooled resin deformed and was stretched conspicuously during demolding from the dents of concave-convex textured surface. The results of the above visualization experiments demonstrated the validity of this new visualization analysis method.