Abstract: Recordation and removal of an image that can be removed from a recording medium are facilitated with suitable workability. An ink composition for forming an image using an ink jet scheme on a recording medium, and removing the image from the recording medium by dissolving the image by a solvent after having fixed the formed image by light irradiation, and an ink composition that is to become a base of an image layer formed on the recording medium using the ink jet scheme, and that is for removing the image layer from the recording medium by dissolving the ink composition by the solvent after having fixed the formed image layer by the light irradiation that are according to the present disclosure include a photocurable compound that is cured by receiving light irradiation and dissolved by a solvent while in a cured state.

Abstract: Provided is a pretreatment agent for dye printing applicable to printing using various types of dye-containing inks. The pretreatment agent for dye printing according to the disclosure contains a chain transfer agent and a photo-curable compound with water solubility.

Abstract: In a 3D printer (1), an inkjet head (10) is controlled such that, if a color tone that is expressed by mixing equal amounts of two or three colors of three color components is to be realized, an ink that corresponds to that color tone is used as a colored ink, and the height of an ink layer of the colored ink per unit area of a discharge target surface is supplemented with a supplementary ink so as to reach a predetermined height.

Abstract: A metallic decoration method of decorating decoration objects with decoration ink containing a silver ?-ketocarboxylate is shown. This metallic decoration method includes a printing process of performing printing on a decoration object 1 by ejecting decoration ink made by diluting a silver ?-ketocarboxylate with a solvent from an inkjet head 11, and a heating process of heating the decoration object 1 after the printing process, thereby vaporizing the solvent while decomposing the silver ?-ketocarboxylate into metallic silver, thereby forming a metallic decoration layer 2, and in the printing process, printing is performed on the decoration object 1 while the decoration object 1 is heated. In this metallic decoration method, a heating temperature of the decoration object 1 in the heating process is set so as to be equal to or higher than a heating temperature of the decoration object 1 in the printing process.

Abstract: There are provided an ink recording head, a printing apparatus, and a printing method that may suppress the occurrence of color smearing. An ink recording head 10 according to an aspect of the present disclosure includes ink recording heads 10 (Y), 10 (M), 10 (C), 10 (R), 10 (G), 10 (B), and 10 (K) respectively configured to record inks of yellow (Y), magenta (M), cyan (C), red (R), green (G), blue (B), and black (K).

Abstract: This disclosure is directed to producing an improved coloring effect, while suppressing smearing of a colorant in the inkjet textile printing. A fabric is printed by inkjet printing with a first liquid containing a dyeing assistant. Then, the fabric is further printed by inkjet printing with a second liquid containing a colorant and a water-soluble photo-curable resin. The second liquid applied on the fabric is then irradiated with light.

Abstract: Provided is a pretreatment agent for dye printing applicable to printing using various types of dye-containing inks. The pretreatment agent for dye printing according to the disclosure contains a chain transfer agent and a photo-curable compound with water solubility.

Abstract: Recordation and removal of an image that can be removed from a recording medium are facilitated with suitable workability. An ink composition for forming an image using an ink jet scheme on a recording medium, and removing the image from the recording medium by dissolving the image by a solvent after having fixed the formed image by light irradiation, and an ink composition that is to become a base of an image layer formed on the recording medium using the ink jet scheme, and that is for removing the image layer from the recording medium by dissolving the ink composition by the solvent after having fixed the formed image layer by the light irradiation that are according to the present disclosure include a photocurable compound that is cured by receiving light irradiation and dissolved by a solvent while in a cured state.