Heat transfer printing sheet and heat transfer printing method using the same
AssigneeDai Nippon Printing Co., Ltd.
InventorsShogo Mizuno, Sumio Ishii
Life of this patent
Estimating the term…
Abstract
Heat transfer printing sheet wherein a pattern comprising a basic dye having the poor heat transferable property, an alkaline agent having a property of increasing the heat transferable property of the basic dye and a binder is formed on a base support sheet and also a resin film through which the basic dye can be passed when the heat transfer printing is carried out, but can not be passed through when the heat transfer printing is not carried out is formed on the pattern. The resin film can be provided on the right and/or back side surfaces of the base support sheet. Heat transfer printing method using the above heat transfer printing sheet with heat under pressure.
Claims15
A heat transfer printing sheet wherein a pattern comprising (1) a basic dye which will not sublime, melt or evaporate at the temperature employed in the heat transfer printing step, (2) from 0.1 to 20 molar equivalent of an alkaline agent per molar equivalent of basic dye said basic dye and said alkaline agent being together as a component an said sheet and (3) a binder therefor is formed on a surface of a base support sheet.
Dependencies are inferred from the claim text.