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公开(公告)号：US20190152247A1
公开(公告)日：2019-05-23
申请号：US16186610
申请日：2018-11-12
发明人： Masanobu Shinohara , Takashi Namiki
摘要： A printing apparatus is provided that effectively prevents the risk of ink bleeding so as to obtain a high-quality print result. The printing apparatus includes an inkjet head that ejects droplets of ink using inkjet technique so as to adhere the ink to the medium, and an ultraviolet light source that radiates ultraviolet light. The ink contains a colorant, an ultraviolet absorbent, a resin, and an aqueous solvent that emulsifies or suspends the resin. The ultraviolet light source irradiates the ink adhered to the medium with ultraviolet light to heat the ink to a temperature lower than a boiling point of the ink and high enough to prevent the ink from bleeding, so that the aqueous solvent is at least in part volatilized and removed from the ink.
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公开(公告)号：US20200095440A1
公开(公告)日：2020-03-26
申请号：US16579849
申请日：2019-09-24
IPC分类号： C09D11/30 , C08L33/08 , C08K5/3415 , C08K5/3445 , C08K5/357 , C08K5/06 , C08K5/05
摘要： An inkjet aqueous ink composition comprises a heterocyclic compound having a nitrogen atom in the heterocycle and a carbonyl group adjacent to the nitrogen atom, a resin, and water. The heterocyclic compound is preferably selected from the group consisting of 1,3-dimethyl-2-imidazolidinone and 1-methyl-2-pyrrolidone. The resin is preferably an acrylic resin.
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公开(公告)号：US20220213333A1
公开(公告)日：2022-07-07
申请号：US17610691
申请日：2020-05-11
IPC分类号： C09D11/033 , C09D11/037 , C09D11/107 , B41J11/00
摘要： An ink composition for inkjet and a method for inkjet recording are provided. The ink composition for inkjet includes: a pigment, a water, an alkanediol having a carbon number of 6 or more and 10 or less; and a resin emulsion. A minimum value of a mass ratio of the alkanediol to the ink composition for inkjet is 10%. And, the method includes: performing a typing by attaching an ink composition for inkjet to an ink-unabsorbable or ink-low-absorbable medium. The ink composition for inkjet is prepared by dispersing solutes including a pigment and a resin emulsion in a water including an alkanediol having a carbon number of 6 or more and 10 or less; and the typing is performed by ejecting the ink composition for inkjet on the ink-unabsorbable or ink-low-absorbable medium heated at 50° C. or more and 60° C. or less.
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公开(公告)号：US20190249024A1
公开(公告)日：2019-08-15
申请号：US16254622
申请日：2019-01-23
IPC分类号： C09D11/40 , B41M5/00 , C09D11/102 , C09D11/106
CPC分类号： C09D11/40 , B41M5/0023 , C09D11/102 , C09D11/106
摘要： Provided are an ink set for inkjet printing that achieves remarkable adhesion to plastic base materials and provides a print result improved in water resistance and alcohol resistance, an inkjet printing method, and an inkjet printing apparatus. The inkjet printing method includes a first ink applying step of applying a first ink to a print medium, the first ink containing an epoxy compound and at least one anionic component, and a second ink applying step of applying a cationic second ink to the print medium, the second ink containing an amine-based polymer in which at least one of polyethylene hydrogens is substituted with a —CH2NH2 group.
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