公开(公告)号：US11434384B2

公开(公告)日：2022-09-06

申请号：US16332551

申请日：2017-09-25

Applicant: TORAY INDUSTRIES, INC.

Inventor： Noboru Koshimizu ,  Yuichi Tsuji ,  Takejiro Inoue

IPC: C09D11/101 ,  B41M1/06 ,  C09D11/037 ,  C09D11/107

Abstract: To provide is a manufacturing method for obtaining printed material in which, in lithographic printing, a printed part where multiple colors are superimposed on each other has a high gloss, and also a lithographic printing ink set. The method for manufacturing printed material according to the present invention includes a step of coating at least black ink for lithographic printing, cyan ink for lithographic printing, magenta ink for lithographic printing, and yellow ink for lithographic printing on a substrate, in which a difference in surface tension between the inks to be coated on a substrate is at most equal to 3.5 mN/m. The lithographic printing ink set according to the present invention is a lithographic printing ink set including at least black ink, cyan ink, magenta ink, and yellow ink, in which a difference in surface tension between the inks included in the lithographic printing ink set is at most equal to 3.5 mN/m.

公开(公告)号：US11161991B2

公开(公告)日：2021-11-02

申请号：US15777072

申请日：2016-11-24

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yuichi Tsuji ,  Takejiro Inoue ,  Seiichiro Murase

IPC: C09D11/101 ,  B41M1/06 ,  C09D11/107 ,  C09D11/037

Abstract: Provided is a lithographic ink having superior surface staining resistance and fluidity. Also provided is a method for manufacturing a printed material using the lithographic ink. The lithographic ink has all of a viscosity (A) at a rotational speed of 0.5 rpm, a viscosity (B) at a rotational speed of 20 rpm, and a viscosity (C) at a rotational speed of 50 rpm of 5 Pa·s or more and 100 Pa·s or less, the viscosities (A), (B), and (C) being measured by using a cone-plate rotating viscometer at 25° C., and has a viscosity ratio (C)/(B) of 0.8 or more and 1.0 or less.

公开(公告)号：US10906294B2

公开(公告)日：2021-02-02

申请号：US16094639

申请日：2017-05-19

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yuichi Tsuji ,  Takejiro Inoue

IPC: B41F35/00 ,  B41M1/06 ,  B41N3/08 ,  C09D11/101 ,  B41F35/02 ,  B41F35/06 ,  H01M4/36

Abstract: The present invention aims to provide a method of producing a printed matter that shows suppressed scumming in planography. A method of producing a printed matter, the method including the steps of: allowing a dampening water to adhere to a hydrophilic layer of a planographic printing plate having at least the hydrophilic layer and a heat sensitive layer; allowing an ink to adhere to the heat sensitive layer; and transferring the ink adhering to the heat sensitive layer to an object to be printed; wherein the pH (A) of the ink and the pH (B) of the dampening water are both from 1 to 6.5.