Provided are a polyester film and a method of manufacturing the polyester film. A polyester film has a base film and at least one image receiving layer which is disposed on at least one surface of the base film, the base film contains a polyester and titanium oxide particles, the mass-based content of the titanium oxide particles in the base film satisfies Formula 1 on the assumption that the thickness of the base film is T m, a surface roughness standard deviation Rq is 0.01 m to 0.12 m, a cross section in a thickness direction orthogonal to a plane direction of the base film has voids whose average area per void is 0.01 m.sup.2/void to 0.10 m.sup.2/void, and a surface roughness standard deviation Rq of an outermost surface of the image receiving layer is 0.01 m to 0.1 m.

Herein is described a method of producing a printed label. The method may comprise: a. providing a label substrate having a first surface and a second surface, wherein the first and second surfaces form opposing surfaces of the label substrate; b. applying a primer comprising a cross-linkable primer resin onto the first surface of a label substrate to form a primer layer; c. electrophotographically printing onto the primer layer an electrostatic ink composition comprising a cross-linkable thermoplastic resin to form a printed layer; d. applying a cross-linking composition comprising a cross-linking agent to the printed layer, wherein the cross-linking agent penetrates into the electrostatic ink composition and the primer layer; and e. activating the cross-linking agent wherein an adhesive is present on the second surface of the label substrate in step a or applied to the second surface of the label substrate at any point in the method after step a. Printed labels are also described herein.

Here is provided a method of printing on a substrate, the method comprising: providing a substrate, wherein the substrate has been primed by a primer composition comprising water, an epoxide crosslinker, polyethyleneimine and a glycol co-solvent, the primer composition having formed a primer layer on the substrate, and printing an electrostatic ink on the primer layer. A fluid set comprising the primer composition and an electrostatic ink is also described herein.

Provided is an electrophotographic apparatus including: an electrophotographic photosensitive member; and an intermediate transfer belt that is allowed to be brought into abutment against the electrophotographic photosensitive member, wherein the electrophotographic photosensitive member contains polytetrafluoroethylene particles, a binding material, and a polymer A including a specific structural unit, and wherein the intermediate transfer belt contains a perfluoropolyether, a binding material, and a polymer B including a specific structural unit.

The present disclosure relates to a process for printing a substrate. The process comprises applying an analogue primer over a print substrate. A transparent electrophotographic composition comprising a coupling agent is electrophotographically printed on the primer as a coupling layer. An electrophotographic ink composition is then printed on the coupling layer to form an image layer. The coupling layer is disposed between the primer and image layer and in contact with each of the primer and image layer.

Herein is described a method of applying foil from a foil web to a substrate. The method may comprise: ink-jet printing a UV-curable adhesive onto the substrate in a predetermined image area; subjecting the adhesive to a first curing by exposing the adhesive to UV light in a dosage range of 140-170 mJ/cm.sup.2; passing the substrate and a foil web through a nip where the foil web is pressed against the adhesive; subjecting the adhesive disposed between the substrate and the foil web to a second curing by exposing the adhesive to UV light in a dosage of at least 250 mJ/cm.sup.2; and separating excess foil from the substrate, to leave foil on the predetermined image area. Substrates and UV-curable adhesives are also described.

Described herein is a method for priming a print substrate for subsequently receiving a liquid electrophotographic (LEP) inkin which a surface of a print substrate is coated with a first primer using an analogue printing technique and a second primer is digitally printed to the surface of the print substrate coated with the first primer.

Described herein is a process for preparing a flexible printed material. The process may comprise providing a flexible print substrate comprising a primer on a surface of the print substrate, the primer comprising a primer resin; printing an ink composition comprising a thermoplastic resin onto the primer on the surface of the print substrate; and depositing a cross-linking composition comprising a cross-linker onto the printed ink composition disposed on the primer such that the thermoplastic resin of the ink composition is crosslinked and the primer resin of the primer is crosslinked.

A base material for electrophotography is produced by stacking a base paper, a water-based adhesive layer constituted by water-soluble or water-dispersible adhesive containing 3 to 5 g/m.sup.2 of solids, a metal layer, and a polyamide resin layer, in this order. The base material that uses adhesive does not wrinkle when laminated, has sufficient metallic gloss through a metal deposition layer, ensures that electrophotographic printing is implemented in a reliable manner, and allows for easy separation/collection of each layer when the used sheets are collected and recycled.

An article in the form of a printable substrate having a showthrough value of about 0.14 or less, and an opacity value of at least about 88% which includes a paper substrate with a first and second surfaces formed of paper fibers having a basis weight of from about 12 to about 32 lbs/1300 ft.sup.2, and a substrate filler in an amount in the range of from 0 to about 30% by weight of the paper substrate; and a surface size layer on at least one of the first and second surfaces, the surface size layer having about 50 lbs or less per ton of the paper substrate of a starch surface sizing agent and a multivalent metal salt drying agent in an amount sufficient to impart to the at least one of the first and second surfaces a black print density value of at least about 0.8 when inkjet printed with pigmented inks and a waterfastness value of at least about 85% when inkjet printed with dye-based inks, the printable substrate having a MD tensile strength of at least about 12 lbs/in. and a CD tensile strength of at least about 6 lbs/in. Also, a method for preparing such a printable substrate.