Recording sheet for forming intensely colored iridescent indicia

Claim 2

A recording sheet comprising, a colorless base web having a substantially white surface coating comprising, an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and an organic solvent-free binder for said iridescent pigment.

Claim 3

A substantially white printing surface comprising, a thin film of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and an organic solvent-free binder for said pigment.

Claim 4

A substantially white printing surface comprising, a thin film of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and an organic solvent-free binder for said pigment.

Claim 5

The surface of claim 2 wherein the iridescent pigment used is one which exhibits a blue to violet interference reinforced reflection color.

Claim 6

A substantially white recording sheet comprising a colorless base web having thereon a white surface coating comprising, a mixture of at least 25% of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and up to 75% of a water-insoluble diluent, said diluent comprisisng an essentially transparent material having a refractive index less than 1.8, and an organic solvent-free binder for said mixture.

Claim 7

A substantially white recording sheet comprising a colorless base web having thereon a white surface coating comprising, a mixture of at least 25% of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and up to 75% of a water-insoluble diluent, said diluent comprisisng an essentially transparent material having a refractive index less than 1.8, and an organic solvent-free binder for said mixture.

Claim 8

A substantially white printing surface comprising a thin film of a mixture of at least 25% of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and up to 75% of a water-insoluble diluent material, said diluent material being transparent and having a refractive index less than 1.8, and an organic solvent-free binder for said mixture.

Claim 9

A substantially white printing surface comprising a thin film of a mixture of at least 25% of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and up to 75% of a water-insoluble diluent material, said diluent material being transparent and having a refractive index less than 1.8, and an organic solvent-free binder for said mixture.

Claim 10

The printing surface of claim 5 wherein the iridescent pigment is an essentially transparent micaceous substrate having thereon at least one overcoating of titanium dioxide.

Claim 11

The printing surface of claim 5 wherein the diluent material is a member of the class consisting of silica and the inorganic silicates.

Claim 12

The printing surface of claim 5 wherein the diluent material is a finely divided clay material.

Claim 13

The printing surface of claim 5 wherein the diluent material is a member of the class consisting of calcium carbonate and magnesium carbonate.

Claim 14

The printing surface of claim 5 wherein the diluent material is a micaceous substance.

Claim 15

A self-contained substantially white recording sheet comprising a colorless base web having thereon a coating comprising a mixture of an iridescent pigment comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from an optical interference overcoating, and up to about 5% by weight of a solvent soluble organic coloring matter present in the form of finely divided particles, and an organic solvent-free binder for said mixture.

Claim 16

A self-contained substantially white recording sheet comprising a colorless base web having thereon a coating comprising a mixture of an iridescent pigment comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from an optical interference overcoating, and up to about 5% by weight of a solvent soluble organic coloring matter present in the form of finely divided particles, and an organic solvent-free binder for said mixture.

Claim 17

A self-contained substantially white printing surface comprising a thin film of a mixture of (1) an iridescent pigment comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from an optical interference overcoating and (2) up to about 5% by weight of a solvent soluble organic coloring matter present in the form of finely divided particles, and an organic solvent-free binder for said mixture

Claim 18

A self-contained substantially white printing surface comprising a thin film of a mixture of (1) an iridescent pigment comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from an optical interference overcoating and (2) up to about 5% by weight of a solvent soluble organic coloring matter present in the form of finely divided particles, and an organic solvent-free binder for said mixture

Claim 19

A manifolding system comprising a receiving sheet having an upper surface with a coating thereon comprising an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back through the optical interference overcoating, and a binder for said pigment, and a transfer sheet having a reverse surface with a coating thereon comprising an encapsulated dye solution, said solution having an absorption band complementary to the interference reflection color of the iridescent pigment, said transfer sheet being arranged so that pressure on the top surface transfers the dye solution to the receiving sheet surface, thereby forming an intensely colored iridescent indicia.

Claim 20

A manifolding system comprising a receiving sheet having an upper surface with a coating thereon comprising an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back through the optical interference overcoating, and a binder for said pigment, and a transfer sheet having a reverse surface with a coating thereon comprising an encapsulated dye solution, said solution having an absorption band complementary to the interference reflection color of the iridescent pigment, said transfer sheet being arranged so that pressure on the top surface transfers the dye solution to the receiving sheet surface, thereby forming an intensely colored iridescent indicia.

Claim 21

A manifolding system comprising a receiving sheet having an upper surface with a coating thereon comprising a mixture of at least 25% of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back through the optical interference overcoating, and up to 75% of a water-insoluble diluent material, said diluent material being transparent and having a refractive index less than 1.8, and a binder for said mixture, and a transfer sheet having a reverse surface with a coating thereon comprising an encapsulated dye solution, said solution having an absorption band complementary to the interference reflection color of the iridescent pigment, said transfer sheet being arranged so that pressure on the top surface transfers the dye solution to the receiving sheet surface, thereby forming an intensely colored iridescent indicia.

Claim 22

A manifolding system comprising a receiving sheet having an upper surface with a coating thereon comprising a mixture of at least 25% of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back through the optical interference overcoating, and up to 75% of a water-insoluble diluent material, said diluent material being transparent and having a refractive index less than 1.8, and a binder for said mixture, and a transfer sheet having a reverse surface with a coating thereon comprising an encapsulated dye solution, said solution having an absorption band complementary to the interference reflection color of the iridescent pigment, said transfer sheet being arranged so that pressure on the top surface transfers the dye solution to the receiving sheet surface, thereby forming an intensely colored iridescent indicia.

Claim 23

A substantially white recording sheet comprising, a colorless base web having a surface coating comprising an iridescent pigment of the type comprising an essentially transparent plate-like base substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index greater than that of the base substrate and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and an organic solvent-free binder for said iridescent pigment.

Claim 24

A substantially white recording sheet comprising, a colorless base web having a surface coating comprising an iridescent pigment of the type comprising an essentially transparent plate-like base substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index greater than that of the base substrate and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and an organic solvent-free binder for said iridescent pigment.

Claim 25

A substantially white printing surface comprising, a colorless base web having a white surface coatiang comprising, a thin film of an iridescent pigment of the type comprising an essentially transparent plate-like base substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index greater than that of the base substrate and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and an organic solvent-free binder for said iridescent pigment.

Claim 26

A substantially white printing surface comprising, a colorless base web having a white surface coatiang comprising, a thin film of an iridescent pigment of the type comprising an essentially transparent plate-like base substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index greater than that of the base substrate and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and an organic solvent-free binder for said iridescent pigment.

Claim 27

A manifolding system comprising a receiving sheet having an upper surface with a coating thereon comprising a mixture of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and up to about 5% by weight of a solvent soluble organic coloring matter present in the form of finely divided particles, said organic coloring matter having an absorption band complementary to the interference reflection color of the iridescent pigment, and an organic solvent free binder for said mixture, and a transfer sheet having a reverse surface with a coating thereon comprising an encapsulated solvent for the finely divided particles, said transfer sheet being arranged so that pressure on the top surface thereof transfers the solvent for the particles to the receiving sheet where it dissolves the particles and spreads the said coloring matter over the iridescent pigment thereby forming an intensely colored indicia.

Claim 28

A manifolding system comprising a receiving sheet having an upper surface with a coating thereon comprising a mixture of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and up to about 5% by weight of a solvent soluble organic coloring matter present in the form of finely divided particles, said organic coloring matter having an absorption band complementary to the interference reflection color of the iridescent pigment, and an organic solvent free binder for said mixture, and a transfer sheet having a reverse surface with a coating thereon comprising an encapsulated solvent for the finely divided particles, said transfer sheet being arranged so that pressure on the top surface thereof transfers the solvent for the particles to the receiving sheet where it dissolves the particles and spreads the said coloring matter over the iridescent pigment thereby forming an intensely colored indicia.

Claim 29

A self-contained substantially colorless recording sheet comprising a colorless base web having thereon a coating comprising a mixture of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and up to about 5% by weight of an encapsulated dye solution of an organic coloring matter, said solution having an absorption band complementary to the interference reinforced reflection wave band of the iridescent pigment, and an organic solvent-free binder for said mixture.

Claim 30

A self-contained substantially colorless recording sheet comprising a colorless base web having thereon a coating comprising a mixture of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one optical interference overcoating of an essentially transparent material having a refractive index over about 2.0 and characterized by an interference reinforced wave band reflected back from the optical interference overcoating, and up to about 5% by weight of an encapsulated dye solution of an organic coloring matter, said solution having an absorption band complementary to the interference reinforced reflection wave band of the iridescent pigment, and an organic solvent-free binder for said mixture.