| 摘要 |
PURPOSE:To obtain the titled medium having hollow structure to prevent exfoliation of recording layers by forming the recording layers in such a manner that said layers are at least partially dissolved or swollen in an adhesive agent in the adhesive part of a pair of substrates and the adhesive agent is penetrated to such recording layers by which the recording layers are adhered. CONSTITUTION:The recording layers 2a, 2b respectively contg. org. dyes are provided on the inside of a pair of the substrates 1a, 1b and the substrates 1a, 1b are stuck to each other by the adhesive agent in the adhesive part by interposing a spacer 6a between the substrates so that the adhesive agent and the recording layers melt each other in the adhesive part 5 and the recording layers are at least partially dissolved or swollen by the adhesive agent, by which the adhesive agent is penetrated in the recording layers and the substrates 1a, 1b are adhered via the spacer 6a. Cyanine, merocyanine, phthalocyanine, tetrahydrocholine, etc., are used and >=2 kinds of these dyes may be used in combination. |
