公开(公告)号：US20230257611A1

公开(公告)日：2023-08-17

申请号：US18186194

申请日：2023-03-20

Applicant: FUJIFILM CORPORATION

Inventor： Kohei TAKESHITA ,  Shota SUZUKI

IPC: C09D11/38 ,  C09D11/101

CPC classification number: C09D11/38 ,  C09D11/101

Abstract: An ink jet ink including water, a water-soluble organic solvent, and particles including a polymer P and a polymerizable monomer M, wherein, when a mass content of the water-soluble organic solvent is defined as Ws and a mass content of the polymerizable monomer M is defined as Wm, a Ws/Wm ratio is 1.1 or more, and ΔHSP(s−m), which is an HSP distance between the water-soluble organic solvent and the polymerizable monomer M, is 15.0 MPa1/2 to 25.0 MPa1/2, and an ink jet recording method.

公开(公告)号：US20230220227A1

公开(公告)日：2023-07-13

申请号：US18186196

申请日：2023-03-20

Applicant: FUJIFILM CORPORATION

Inventor： Shota SUZUKI ,  Kohei TAKESHITA

IPC: C09D11/38 ,  B41M7/00 ,  B41M5/00

CPC classification number: C09D11/38 ,  B41M7/0081 ,  B41M5/0047

Abstract: An ink jet recording method including a step of preparing an ink containing water and particles including a polymer P and a polymerizable monomer M wherein the polymerizable monomer M includes a monomer (M-1) having a viscosity at 25° C. of 500 mPa·s or less and a content of the monomer (M-1) relative to a total solid content of the particles is 25 mass % to 80 mass %; an application step of applying, onto a substrate, the ink by an ink jet process; and an irradiation step of irradiating the ink having been applied onto the substrate, with an actinic energy ray, wherein a time from landing of the ink onto the substrate to starting of the irradiation with the actinic energy ray is 1.00 second or less.

公开(公告)号：US20130157199A1

公开(公告)日：2013-06-20

申请号：US13766226

申请日：2013-02-13

Applicant: FUJIFILM CORPORATION

Inventor： Kohei TAKESHITA ,  Keisuke ARIMURA ,  Toshifumi INNO

IPC: G03F7/20

CPC classification number: G03F7/20 ,  G03F7/027 ,  G03F7/031 ,  G03F7/032 ,  G03F7/033 ,  G03F7/092 ,  G03F7/11 ,  G03F7/322

Abstract: To provide a method of preparing a lithographic printing plate comprising exposing imagewise a lithographic printing plate precursor including a support, a photosensitive layer containing a binder polymer and a radical polymerizable compound having viscosity of 9,000 mPa·s or less at 25° C. and a protective layer in this order and developing the exposed lithographic printing plate precursor with a developer without passing through a heat treatment, as a method of preparing a lithographic printing plate capable of forming an image area which is cured at high sensitivity and has good printing durability and halftone dot reproducibility and capable of easily reproducing a halftone dot image because of excellent stability of halftone dot reproduction to exhibit a small restriction on setting of the time described above, even without conducting a preheat treatment.

Abstract translation: 提供一种制备平版印刷版的方法，其包括将包含载体的平版印刷版原版，含有粘合剂聚合物的感光层和在25℃下粘度为9000mPa·s以下的自由基聚合性化合物成像曝光， 保护层，并且通过显影剂显影而不经过热处理来显影曝光的平版印刷版原版，作为制备能够形成以高灵敏度固化并且具有良好印刷耐久性的图像区域的平版印刷版的方法，以及 半色调点再现性，并且能够容易地再现半色调点图像，因为即使不进行预热处理，半色调点再现的稳定性优异，对上述时间的设置也显示出小的限制。

公开(公告)号：US20220348779A1

公开(公告)日：2022-11-03

申请号：US17852351

申请日：2022-06-28

Applicant: FUJIFILM Corporation

Inventor： Kohei TAKESHITA ,  Kazuo KAMOHARA

IPC: C09D11/38 ,  C09D11/40 ,  C09D11/322 ,  C09D11/037 ,  C09D11/101 ,  C09D11/107 ,  B41M5/00 ,  B41M7/00 ,  B29C43/10

Abstract: Provided are an ink set including a first ink including an ethylenic unsaturated compound and a photopolymerization initiator, the first ink not including a colorant or including a white colorant, and a second ink including an ethylenic unsaturated compound, a photopolymerization initiator, and a colorant, wherein the proportion of the amount of a monofunctional monomer to the total amount of the ethylenic unsaturated compound included in the first ink is 95.0% by mass or more, the proportion of the amount of a monofunctional monomer to the total amount of the ethylenic unsaturated compound included in the second ink is 95.0% by mass or more, and, when the static surface tension of the first ink at 25° C. is defined as T1 and the static surface tension of the second ink at 25° C. is defined as T2, the value calculated by subtracting T1 from T2 is 1 mN/m or more, and applications of the ink set.

公开(公告)号：US20190185691A1

公开(公告)日：2019-06-20

申请号：US16279962

申请日：2019-02-19

Applicant: FUJIFILM CORPORATION

Inventor： Kohei TAKESHITA ,  Hirohisa Hokazono

IPC: C09D11/322

Abstract: Provided are an ink jet recording aqueous ink composition including: a coloring material; water; an organic solvent d-1 which is represented by Formula 1 or 2 and which has a C log P value of 0.5 to 3.5; and a resin particle including a resin containing 1 mass % to 20 mass % of a monomer unit c-1 having a C log P value more than the C log P value of the organic solvent d-1 and having an anionic group, with respect to a total mass of the resin, in which a content of the organic solvent d-1 is 0.5 mass % to 10 mass % with respect to a total mass of the ink jet recording aqueous ink composition, and an image forming method.

公开(公告)号：US20130344440A1

公开(公告)日：2013-12-26

申请号：US13975978

申请日：2013-08-26

Applicant: FUJIFILM Corporation

Inventor： Hiroyuki SUZUKI ,  Junya ABE ,  Takafumi NAKAYAMA ,  Kohei TAKESHITA

IPC: G03F7/09 ,  G03F7/30

CPC classification number: G03F7/0388 ,  C08F2220/603 ,  C08F2220/606 ,  G03F7/00 ,  G03F7/004 ,  G03F7/027 ,  G03F7/033 ,  G03F7/038 ,  G03F7/085 ,  G03F7/09 ,  G03F7/092 ,  G03F7/11 ,  G03F7/30 ,  G03F7/3042 ,  G03F7/32 ,  G03F7/322

Abstract: Provided is lithographic printing plates and processes for preparing the lithographic printing plates having excellent printing durability, staining resistance and staining resistance over time.A lithographic printing plate precursor comprising: a substrate; a photosensitive layer provided on the substrate; and an extra layer optionally provided between the substrate and the photosensitive layer; wherein the photosensitive layer or the extra layer adjacent to the substrate contains (A) a copolymer; and wherein the copolymer (A) comprises: (a1) a repeating unit having a structure represented by formula (a1-1) below in a side chain, and (a2) a repeating unit having at least one of the structures represented by formulae (a2-1) to (a2-6) below in a side chain. L1 represents a single bond, a divalent aromatic group containing 6 to 14 carbon atoms, —C(═O)—O—, or —C(—0)═NR2— (wherein R2 represents a hydrogen atom, alkyl or aryl). Z1 represents methylene, ethylene, propylene, butylene, pentylene, hexylene, heptylene, octylene, cyclohexane-1,4-diyl, 1,2-phenylene, 1,3-phenylene, 1,4-phenylene, 1,2-naphthalene, 1,5-naphthalene and a linking group composed of two or more of these divalent linking groups linked through —O— or —S—, wherein a hydrogen atoms in these divalent linking groups may be replaced by substituents. R1 represents a hydrogen atom, alkyl, aryl, heterocyclyl, sulfo, alkylsulfonyl and arylsulfonyl. R21, R22 and R23 each independently represent a hydrogen atom, halogen atom or C1-8 alkyl.

Abstract translation: 提供了平版印刷版和用于制备具有优异的印刷耐久性，耐污染性和耐污染性的平版印刷版的方法。 一种平版印刷版原版，包括：基底; 设置在基板上的感光层; 以及可选地设置在所述基底和所述感光层之间的额外层; 其中所述感光层或与所述基材相邻的所述多余层含有（A）共聚物; 并且其中所述共聚物（A）包含：（a1）在侧链具有由下式（a1-1）表示的结构的重复单元，和（a2）具有至少一个由式 a2-1）〜（a2-6）。 L1表示单键，含有6​​〜14个碳原子的二价芳基，-C（= O）-O-或-C（ - ）= NR2-（其中R2表示氢原子，烷基或芳基）。 Z1表示亚甲基，亚乙基，亚丙基，亚丁基，亚戊基，亚己基，亚庚基，亚辛基，环己烷-1,4-二基，1,2-亚苯基，1,3-亚苯基，1,4-亚苯基，1,2-萘， 1,5-萘和由这些通过-O-或-S-连接的这些二价连接基团中的两个或更多个的连接基团，其中这些二价连接基团中的氢原子可被取代基取代。 R 1表示氢原子，烷基，芳基，杂环基，磺基，烷基磺酰基和芳基磺酰基。 R 21，R 22和R 23各自独立地表示氢原子，卤素原子或C 1-8烷基。