Coating processes – Transfer or copy sheet making
Patent
1995-02-09
1996-06-04
Bell, Janyce
Coating processes
Transfer or copy sheet making
427245, 427335, 427336, 427379, B41M 312, B05D 500
Patent
active
055231160
ABSTRACT:
The reversible thermal recording medium of the invention is composed by forming on a substrate a porous reversible thermal recording layer which reversibly shows transparent states and opaque states by cooling after two modes of heating, by means of organic crystal particles dispersed in matrix polymer. One method for manufacturing a reversible thermal recording medium of the invention includes a coating step for applying a paint in which a matrix polymer, organic crystal particles and pore forming particles are contained and at least one of matrix polymer and organic crystal particles is dispersed in a granular form on a substrate to form a coating layer; plus a solvent contact step of eluting the pore forming particles by causing the coating layer to come into contact with a solvent in which the pore forming particles are soluble; and a drying step. Another method for manufacturing the reversible thermal recording medium of the invention includes a coating step of applying a paint in which a matrix polymer and organic crystal particles are contained and at least one of matrix polymer and organic crystal particles is dispersed in a granular form on a substrate to form a coating layer; plus a solvent contact step of causing the coating layer to come into contact with a solvent capable of dissolving the matrix polymer and organic crystal particles; and a drying step.
REFERENCES:
patent: 4917948 (1990-04-01), Hotta
patent: 5364829 (1994-11-01), Kishimoto et al.
Kishimoto Yoshio
Suzuki Masa-aki
Ueno Takayoshi
Bell Janyce
Matsushita Electric - Industrial Co., Ltd.
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