A manufacturing method of decorated natural leather including the steps of: attaching a crusted leather (45) with its corium side by an adhesive (46) to a temporary carrier (47); inkjet printing the crusted leather (45) on its grain side with one or more pigmented inkjet inks; wherein the surface area of the temporary carrier (47) is larger than the surface area of the crusted leather (45).

The photosensitive composition according to the present invention is a photosensitive composition including a semiconductor particle (A), a photopolymerizable compound (C) and a photopolymerization initiator (D), in which the photosensitive composition satisfies any one or more of the following (a) to (c): (a) the photosensitive composition further includes a stabilizer (E), and a content of the stabilizer (E) is 8% by mass or more based on the total amount of the photosensitive composition; (b) the photopolymerizable compound (C) includes a (meth)acrylate compound (C1) having a molecular weight of 180 or less; and (c) the photopolymerizable compound (C) includes a compound (C2) having a vinyl ether group and a (meth)acryloyl group in the same molecule.

The photosensitive composition according to the present invention is a photosensitive composition including a semiconductor particle (A), a photopolymerizable compound (C) and a photopolymerization initiator (D), in which the photosensitive composition satisfies any one or more of the following (a) to (c): (a) the photosensitive composition further includes a stabilizer (E), and a content of the stabilizer (E) is 8% by mass or more based on the total amount of the photosensitive composition; (b) the photopolymerizable compound (C) includes a (meth)acrylate compound (C1) having a molecular weight of 180 or less; and (c) the photopolymerizable compound (C) includes a compound (C2) having a vinyl ether group and a (meth)acryloyl group in the same molecule.

The invention relates to an aqueous emulsion of a concentrated liquid blend of two or more phosphine oxide photoinitiators, in particular to blends comprising photoinitiators with differing activation mechanisms. These blends may be used in radiation curable compositions comprising an ethylenically unsaturated compound or an unsaturated polymer dispersion or emulsion to obtain a coating, ink, lacquer, varnish, sealant, adhesive, molded article or 3D printed article.

The invention relates to an aqueous emulsion of a concentrated liquid blend of two or more phosphine oxide photoinitiators, in particular to blends comprising photoinitiators with differing activation mechanisms. These blends may be used in radiation curable compositions comprising an ethylenically unsaturated compound or an unsaturated polymer dispersion or emulsion to obtain a coating, ink, lacquer, varnish, sealant, adhesive, molded article or 3D printed article.

Provided is an ultraviolet curable silicone composition capable of being ejected via inkjet ejection. The ultraviolet curable silicone composition contains: (A) a one-end polymerizable organopolysiloxane represented by the following formula (1) wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 independently represents a linear or branched alkyl group having 1 to 20 carbon atoms, or an aryl-containing group having 6 to 10 carbon atoms; R.sup.6 represents a divalent organic group having 2 to 20 carbon atoms; R.sup.7 represents an alkylene group having 2 to 20 carbon atoms; R.sup.8 represents a hydrogen atom or a methyl group; n is a number of 1 to 500; X represents an alkylene group having 2 to 20 carbon atoms; Y represents —OCH.sub.2CH.sub.2—, —OCH(CH.sub.3)CH.sub.2— or —OCH.sub.2CH(CH.sub.3)—; p is a number of not smaller than 1; Z is —O— or —NH—; and (B) a photopolymerization initiator.

Provided is an ultraviolet curable silicone composition capable of being ejected via inkjet ejection. The ultraviolet curable silicone composition contains: (A) a one-end polymerizable organopolysiloxane represented by the following formula (1) wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 independently represents a linear or branched alkyl group having 1 to 20 carbon atoms, or an aryl-containing group having 6 to 10 carbon atoms; R.sup.6 represents a divalent organic group having 2 to 20 carbon atoms; R.sup.7 represents an alkylene group having 2 to 20 carbon atoms; R.sup.8 represents a hydrogen atom or a methyl group; n is a number of 1 to 500; X represents an alkylene group having 2 to 20 carbon atoms; Y represents —OCH.sub.2CH.sub.2—, —OCH(CH.sub.3)CH.sub.2— or —OCH.sub.2CH(CH.sub.3)—; p is a number of not smaller than 1; Z is —O— or —NH—; and (B) a photopolymerization initiator.

Disclosed is a printed object which, even if using a receptive layer that is difficult for a monomer in an active energy ray curable ink to penetrate, has excellent adhesion between the active energy ray curable ink and the receptive layer, and in which the amount of unreacted monomer dissipated from the printed object is low. This printed object includes an ink receptive layer laminated on a substrate surface and having an ink absorption rate of 100% or less, and an ink layer laminated on a surface of the ink receptive layer and made from an active energy ray curable ink which includes a polymerizable compound, wherein the glass transition temperature of the polymerizable compound is −45-25° C.

Disclosed is a printed object which, even if using a receptive layer that is difficult for a monomer in an active energy ray curable ink to penetrate, has excellent adhesion between the active energy ray curable ink and the receptive layer, and in which the amount of unreacted monomer dissipated from the printed object is low. This printed object includes an ink receptive layer laminated on a substrate surface and having an ink absorption rate of 100% or less, and an ink layer laminated on a surface of the ink receptive layer and made from an active energy ray curable ink which includes a polymerizable compound, wherein the glass transition temperature of the polymerizable compound is −45-25° C.

The present disclosure provides a photo-curable elastic ink composition for three-dimensional printing and the preparation method. The ink composition includes approximately 10%-75% of a soft monomer, approximately 10%-75% of a hard monomer, approximately 5%-20% of a cross-linking agent, approximately 5%-20% of a non-reactive soft resin, approximately 0.5%-10% of a photo-initiator, approximately 0%-0.5% of a colorant, and approximately 0.05%-8% of an auxiliary agent. The soft monomer is capable of generating a homopolymer with a glass transition temperature lower than about 25° C. The hard monomer is capable of generating a homopolymer with a glass transition temperature of about 25° C. or higher. The non-reactive soft resin is a resin without containing any radiation curable group in the molecular structure and having a glass transition temperature less than 0° C.