公开(公告)号：US20230002973A1

公开(公告)日：2023-01-05

申请号：US17781942

申请日：2021-11-09

Applicant: SUN CHEMICAL CORPORATION

Inventor： Dana MOHR ,  Jarol OSORIO

IPC: D21H19/42 ,  D21H19/38 ,  D21H19/52 ,  C09D11/033 ,  C09D11/037 ,  C09D11/14 ,  A24D1/02 ,  A24C5/00 ,  A24C5/56 ,  B41M3/00 ,  B41M1/04 ,  B41M1/10

Abstract: The present invention provides a method for printing high opacity images or coatings using solvent based inks comprising hollow polymeric microspheres, wherein the inks do not contain titanium dioxide. The International Agency for Research on Cancer (IARC) has classified titanium dioxide as “possibly carcinogenic to humans,” The method of the present invention allows one to avoid the use of inks that rely on titanium oxide for high opacity, which has become of importance for articles that come into contact with one's mouth, for example, cigarette tipping papers.

公开(公告)号：US20240409760A1

公开(公告)日：2024-12-12

申请号：US18707956

申请日：2022-12-22

Applicant: Sun Chemical Corporation

Inventor： Jarol OSORIO ,  Everett GARRISH

IPC: C09D11/104 ,  B65D65/42 ,  C09D11/033 ,  C09D11/037

Abstract: The present invention provides a high opacity solvent based white ink or coating composition that provides high levels of opacity to substrates used for packaging materials that are printed via flexography or gravure. The ink or coating composition contains up to 75 wt % titanium dioxide, while still having a viscosity suitable for flexographic and gravure printing methods.