公开(公告)号：US11214702B2

公开(公告)日：2022-01-04

申请号：US16882469

申请日：2020-05-23

Applicant: STIERNON ROBERT ETS, SA

Inventor： Pierre Stiernon

IPC: B27K5/02 ,  C09D17/00 ,  C09D15/00 ,  D21H17/09 ,  D21H17/67 ,  D21H19/42 ,  D21H21/28

Abstract: The present application relates to the field of black coloring of materials made from wood, such as reconstituted wood panels or paper/cardboard. The black coloring composition for wood-based materials includes a black pigment, a reactive type black dye and water. It is also possible to prepare a dry extract for some special applications.