D21H3/00 - CPC Classification Index

ClassID:

126729 ⎘

D21H3/00 - CPC Classification

Classification description:

Paper or cardboard prepared by adding substances to the pulp or to the formed web on the paper-making machine and by applying substances to finished paper or cardboard (on the paper-making machine), also when the intention is to impregnate at least a part of the paper body

Sub-classes:

D21H3/82 » by adding insoluble coloured substances, e.g. powders, fibres, pieces of metal, for obtaining different colours in the paper {fancy papers; substances characterised by their physical appearance, e.g. form, rather than by their chemical constitution} 1

Recent Application in this class:

20250092604

SUPERCALENDERED KRAFT PAPER COMPRISING RECYCLED FIBER

20240218598

Supercalendered kraft paper comprising recycled fiber

20210102343

Dry strength composition, its use and method for making of paper, board or the like

20170101740

Method of increasing drainage performance of a pulp slurry during manufacture of paper products, and products therefrom

20170009400

METHOD FOR MANUFACTURING TRANSFER PAPER

20160160443

Web of cellulosic fibers comprising an active agent and method for manufacturing a web of cellulosic fibers comprising an active agent

20150275430

Sheet manufacturing apparatus

20140004337

Recycled or brown paper board and methods of making same