Back to results
US 5,352,527 AGranted
Thermal image transfer recording medium
AssigneeRicoh Company, Ltd.
InventorsShigeyuki Harada, Yoshihiko Hiyoshi, Takeshi Yuyama, Keishi Taniguchi
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeRicoh Company, Ltd.
InventorsShigeyuki Harada, Yoshihiko Hiyoshi, Takeshi Yuyama, Keishi Taniguchi
Estimating the term…
A thermal image transfer recording medium, containing a support, a thermal image transfer ink layer formed on the support, and a heat-resistant protective layer formed on the back side of the support, opposite to the thermal image transfer ink layer with respect to the support, the heat-resistant protective layer having a tensile strength effective to prevent the protective layer from adhering to a thermal head and to prevent loss of flexibility of the protective layer, the heat-resistant protective layer, containing an amount of each of (i) an amino-modified polysiloxane, (ii) a polyisocyanate and (iii) a reaction product of the amino-modified polysiloxane and the polyisocyanate effective for obtaining the tensile strength in the heat-resistant protective layer.
A thermal image transfer recording medium, comprising a support, a thermal image transfer ink layer formed on said support, and a heat-resistant protective layer formed on the back side of said support, opposite to said thermal image transfer ink layer with respect to said support, said heat-resistant protective layer having a tensile strength effective to prevent said protective layer from adhering to a thermal head and to prevent loss of flexibility of said protective layer, said heat-resistant protective layer, comprising an amount of each of (i) amino-modified polysiloxane, (ii) a polyisocyanate and (iii) a reaction product of said amino-modified polysiloxane and said polyisocyanate effective for obtaining said tensile strength in said heat-resistant protective layer.
A thermal image transfer recording medium, comprising a support, a thermal image transfer ink layer formed on said support, and a heat-resistant protective layer formed on the back side of said support, opposite to said thermal image transfer ink layer with respect to said support, said heat-resistant protective layer having a tensile strength effective to prevent said protective layer from adhering to a thermal head and to prevent loss of flexibility of said protective layer, said heat-resistant protective layer, comprising an amount of each of (i) an amino-modified polysiloxane, (ii) a polyisocyanate and (iii) a reaction product of an aromatic diamine and said polyisocyanate effective for obtaining said tensile strength in said heat-resistant protective layer.
A thermal image transfer recording medium, comprising a support, a thermal image transfer ink layer formed on said support, and a heat-resistant protective layer formed on the back side of the support, opposite to the thermal image transfer ink layer with respect to the support, said heat-resistant protective layer having a tensile strength effective to prevent said protective layer from adhering to a thermal head and to prevent loss of flexibility of said protective layer, said heat-resistant protective layer, comprising an amount of each of (i) an alcohol-modified polysiloxane, (ii) a polyisocyanate and (iii) a reaction product of said alcohol-modified polysiloxane and said polyisocyanate effective for obtaining said tensile strength in said heat-resistant protective layer.
Dependencies are inferred from the claim text.