The disclosure relates to ink compositions for digital printing on an external surface of a plastic article. The ink compositions comprise an ink removal-promoting additive. In some aspects, the ink removal-promoting additive can facilitate the separation or loosening of the image from the external surface of the article when the image is exposed to a liquid-based solution at an elevated temperature. Also disclosed are recyclable plastic articles having an external surface with an image printed thereon using the disclosed ink composition and methods for removing cured ink from a plastic container. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

An object of the present invention is to provide a waterless lithographic printing plate precursor that sufficiently repels ink, which tends to adhere to non-imaging areas, and maintains its repelling effects, and a printing method using a waterless lithographic printing plate obtained from the waterless lithographic printing plate precursor. The following are provided: a lithographic printing plate precursor having at least a heat sensitive layer and an ink repellent layer, wherein the ink repellent layer contains an ink repelling, the ink repellent liquid having a boiling point of not less than 150° C. at 1 atmospheric pressure; and a method of producing a printed material, comprising the step of transferring an ink containing a photosensitive component in an amount from 10% by mass to 50% by mass to a printing substrate using a lithographic printing plate and then irradiating the printing substrate with ultraviolet light, wherein the lithographic printing plate precursor has at least an ink repellent layer on a substrate, an ink repellent liquid contained in the ink repellent layer has a surface tension of 30 mN/m or less.

Provided is an inkjet adhesive which is applied using an inkjet device, wherein the adhesive can suppress generation of voids in the adhesive layer and, after bonding, can enhance adhesiveness, moisture-resistant adhesion reliability, and cooling/heating cycle reliability. An inkjet adhesive according to the present invention comprises a photocurable compound, a photo-radical initiator, a thermosetting compound having one or more cyclic ether groups or cyclic thioether groups, and a compound capable of reacting with the thermosetting compound, and the compound capable of reacting with the thermosetting compound contains aromatic amine.

Provided is an inkjet adhesive which is applied using an inkjet device, wherein the adhesive can suppress generation of voids in the adhesive layer and, after bonding, can enhance adhesiveness, moisture-resistant adhesion reliability, and cooling/heating cycle reliability. An inkjet adhesive according to the present invention comprises a photocurable compound, a photo-radical initiator, a thermosetting compound having one or more cyclic ether groups or cyclic thioether groups, and a compound capable of reacting with the thermosetting compound, and the compound capable of reacting with the thermosetting compound contains aromatic amine.

There is provided a radiation curable ink jet composition including: a monomer A that has one of a (meth)acryloyloxy group and a (meth)acryloyl group and has a cyclic structure containing one or more nitrogen atoms and one or more oxygen atoms in addition to the (meth)acryloyloxy group and the (meth)acryloyl group; and a monofunctional monomer B other than the monomer A; in which the content of the monomer A is equal to or less than 25% by mass with respect to the total mass of the composition, and in which mol average Tg of the monomer A and the monofunctional monomer B is equal to or greater than 45° C.

There is provided a radiation curable ink jet composition including: a monomer A that has one of a (meth)acryloyloxy group and a (meth)acryloyl group and has a cyclic structure containing one or more nitrogen atoms and one or more oxygen atoms in addition to the (meth)acryloyloxy group and the (meth)acryloyl group; and a monofunctional monomer B other than the monomer A; in which the content of the monomer A is equal to or less than 25% by mass with respect to the total mass of the composition, and in which mol average Tg of the monomer A and the monofunctional monomer B is equal to or greater than 45° C.

Methods of fabricating 3D printed structures from biocompatible proteins include forming a photoreactive, proteinaceous resin, and 3D printing biocompatible structures from the resin by the patterned application of light in a select wavelength to cure the resin into the desired structures. Suitable photoreactive proteinaceous resins can be formed by reacting an aqueous solution of an acrylated or methacrylated globular protein with a photoreactive comonomer or photoinitiator. Structures printed from the photoreactive, proteinaceous resin can be photo-cured and dried to form bioplastic structures.

Methods of fabricating 3D printed structures from biocompatible proteins include forming a photoreactive, proteinaceous resin, and 3D printing biocompatible structures from the resin by the patterned application of light in a select wavelength to cure the resin into the desired structures. Suitable photoreactive proteinaceous resins can be formed by reacting an aqueous solution of an acrylated or methacrylated globular protein with a photoreactive comonomer or photoinitiator. Structures printed from the photoreactive, proteinaceous resin can be photo-cured and dried to form bioplastic structures.

Methods relating to the printing of materials using hybrid ink formulations are generally described.

Methods relating to the printing of materials using hybrid ink formulations are generally described.