ClassID:

127006

D21H21/28 - CPC Classification

Classification description:

Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper Colorants ; Pigments or opacifying agents

Sub-classes:
Recent Application in this class:
#1
20250354335
2025-11-20

LIDAR REFLECTIVE BLACK PAPER AND NON-WOVEN ARTICLES

#2
20250333907
2025-10-30

COATED CELLULOSIC STRUCTURES AND METHOD FOR MANUFACTURING THEREOF

#3
20250137201
2025-05-01

ANTI-MYOPIA PAPER SHEET

#4
20250116066
2025-04-10

FORMULATION FOR A FIBROUS NON-WOVEN FACING MATERIAL

#5
20250049105
2025-02-13

Phosphorescent Smoking Paper Device

#6
20250034813
2025-01-30

A METHOD FOR IMPROVING GREASE AND OIL RESISTANCE OF A FIBER BASED ARTICLE

#7
20240384473
2024-11-21

PREPARATION METHOD OF ECO-FRIENDLY LONG-LASTING HEAT-SENSITIVE PAPER

#8
20240240405
2024-07-18

DECORATIVE PANEL AND A DECORATIVE FOIL FOR A DECORATIVE PANEL

#9
20240218605
2024-07-04

SOFT TISSUE PRODUCED USING A STRUCTURED FABRIC AND ENERGY EFFICIENT PRESSING

#10
20240218604
2024-07-04

SOFT TISSUE PRODUCED USING A STRUCTURED FABRIC AND ENERGY EFFICIENT PRESSING

#11
20240185823
2024-06-06

METHOD FOR PRODUCING A SOUND ABSORBING PANEL

#12
20240093431
2024-03-21

HIGH POROSITY GYPSUMBOARD PAPER AND/OR CARDBOARD INCLUDING WASTE PAPERS AS RAW MATERIAL

#13
20240060241
2024-02-22

TOILET PAPER AND DISPOSABLE TISSUES, DYED WITH NATURAL DYES THAT AVOID A VISUAL IMPACT ON THE NATURAL ENVIRONMENT

#14
20240052572
2024-02-15

RECYCLABLE, SELF-CLEANING CELLULOSE-FIBER COMPOSITES

#15
20240035233
2024-02-01

Fibrous structures including an active agent and having a graphic printed thereon

#16
20230313465
2023-10-05

AN AQUEOUS SLURRY FOR A COATING COLOUR COMPOSITION FOR PAPER, BOARD OR THE LIKE

#17
20230287629
2023-09-14

PULP QUALITY MONITORING

#18
20230193560
2023-06-22

METHOD FOR OBTAINING A FIBROUS PREPARATION FOR IMMERSION-RESISTANT OPAQUE PAPER

#19
20230151550
2023-05-18

Fibrous structures including an active agent and having a graphic printed thereon

#20
20230141227
2023-05-11

PROCESS FOR PRODUCING COLOURED CARDBOARD IN A CARDBOARD PRODUCTION APPARATUS, AND COLOURED PRODUCED BY SUCH A PROCESS

#21
20220412011
2022-12-29

Method for preparing a compound comprising at least one imine function by a specific condensation reaction, and particular application of said method in the field of dyeing

#22
20220243400
2022-08-04

FORMULATION FOR A FIBROUS NON-WOVEN FACING MATERIAL

#23
20220203646
2022-06-30

Biodegradable straws and methods of making biodegradable straws

#24
20220154404
2022-05-19

Active Materials, Surfaces, Surface Treatments And Methods For Packaging Materials, Boxes, And Containers Using Photosensitizers For Pathogen Reduction

#25
20220136174
2022-05-05

Methods and apparatus for manufacturing fiber-based produce containers

#26
20220090321
2022-03-24

Fibrous structures including an active agent and having a graphic printed thereon

#27
20220049429
2022-02-17

Fiber-based food containers

#28
20210404120
2021-12-30

PACKAGING SHEET FOR PACKAGING OF CHEESE, AND ASSOCIATED PACKAGING AND MANUFACTURING METHODS

#29
20210386112
2021-12-16

Tobacco-Containing Wrapper Having A White Brilliant Appearance

#30
20210381170
2021-12-09

WATERMARKED DECOR PAPER

#31
20210245545
2021-08-12

COLOR-TRANSFER WICKING ART KIT

#32
20210222369
2021-07-22

COATING COMPOSITION FOR PAPER AND PAPERBOARD

#33
20210164168
2021-06-03

Soft tissue produced using a structured fabric and energy efficient pressing

#34
20210156092
2021-05-27

Pulp quality monitoring

#35
20210140112
2021-05-13

WATER SOLUBLE DYE COMPOSITIONS

#36
20210131037
2021-05-06

Oxidized microfibrillated cellulose fibers and composition thereof

#37
20210115160
2021-04-22

Carboxymethylated microfibrillated cellulose fibers and composition thereof

#38
20210095426
2021-04-01

Soft tissue produced using a structured fabric and energy efficient pressing

#39
20210094840
2021-04-01

Bimodal precipitated calcium carbonate slurries suitable for paper and board applications, methods for making the same and their uses

#40
20210062090
2021-03-04

Paper sheet mulches and methods of making the same

#41
20200256016
2020-08-13

Methods and apparatus for manufacturing fiber-based produce containers

#42
20200217016
2020-07-09

OPAQUE PAPER WITHSTANDING IMMERSION

#43
20200181845
2020-06-11

Method for the production of paper, carton, or cardboard using baobab tree bark bast fibers, baobab fruit fibers, and/or natal fig bast fibers as paper raw material

#44
20200095733
2020-03-26

Fibrous structures including an active agent and having a graphic printed thereon

#45
20200095729
2020-03-26

COMPOSITION COMPRISING CULTIVATED MICROALGAE FOR USE IN COLORING PROCESSES

#46
20200095427
2020-03-26

Laminate pigment with spacing properties and high UV-greying stability

#47
20200002894
2020-01-02

Sheet manufacturing apparatus, control method thereof, and sheet manufacturing method

#48
20190390409
2019-12-26

Compositions and methods for improving properties of lignocellulosic materials

#49
20190390375
2019-12-26

Method and apparatus for manufacturing natural fiber based staple fibers on a common surface

#50
20190330801
2019-10-31

Method for producing paper impregnated by a supercritical-pressure fluid, and impregnated, particularly coloured paper

#51
20190328034
2019-10-31

Cannabinoid containing extract infused into rolling paper

#52
20190316298
2019-10-17

Soft tissue produced using a structured fabric and energy efficient pressing

#53
20190241759
2019-08-08

Decorative material

#54
20190233652
2019-08-01

Process for manufacturing white pigment containing products

#55
20190218718
2019-07-18

Process for making paper with improved filler retention and opacity while maintaining wet tensile strength

#56
20190194871
2019-06-27

Fluorescent whitening agents and mixtures thereof

#57
20190040582
2019-02-07

Sheet having improved dead-fold properties

#58
20190037798
2019-02-07

Apparatus for Raising Hatchlings Including a Paper Strip

#59
20180360103
2018-12-20

Cannabinoid containing cannabis extract infused into rolling paper

#60
20180355248
2018-12-13

A GROUND COVER MULCH COMPRISING A MICROFIBRILLATED POLYSACCHARIDE

#61
20180333975
2018-11-22

Printed watermark

#62
20180327972
2018-11-15

Boronic acid containing polymers for papermaking process

#63
20180322811
2018-11-08

Block out label, label sheet, and related method

#64
20180320317
2018-11-08

Paper products and methods and systems for manufacturing such products

#65
20180291561
2018-10-11

METHOD FOR PRODUCING AQUEOUS DISPERSION OF HOLLOW POLYMER PARTICLES, COMPOSITION FOR PAPER COATING, AND COATED PAPER

#66
20180271259
2018-09-27

Hair-coloring predictive test system and method

#67
20180148895
2018-05-31

Surface enhanced pulp fibers at a substrate surface

#68
20170233948
2017-08-17

Process for preparing self-binding pigment particle suspensions

#69
20170191222
2017-07-06

Packaging sheet for packaging of cheese, and associated packaging and manufacturing methods

#70
20170096773
2017-04-06

Method for coloring cellulose

#71
20170058457
2017-03-02

Surface enhanced pulp fibers at a substrate surface

#72
20170037578
2017-02-09

Separated treatment of paper substrate with multivalent metal salts and OBAs

#73
20160265164
2016-09-15

Paper products and methods and systems for manufacturing such products

#74
20160264784
2016-09-15

Acid dyes, process for the production thereof and their use

#75
20160264783
2016-09-15

Acid dyes, process for the production thereof and their use

#76
20160257817
2016-09-08

Acid dyes, process for the production thereof and their use

#77
20160257816
2016-09-08

Acid dyes, process for the production thereof and their use

#78
20160257486
2016-09-08

PACKAGING UNIT COMPRISING NON-WOOD LIGNOCELLULOSIC BIOMASS AND METHOD FOR MANUFACTURING SUCH PACKAGING UNIT

#79
20160153147
2016-06-02

Paper with high covering power

#80
20160153143
2016-06-02

Medical nonwoven fabric, and preparation method thereof

#81
20160152803
2016-06-02

Process for producing cellulosic shaped articles, cellulosic shaped articles and the use thereof

#82
20160145810
2016-05-26

Soft tissue produced using a structured fabric and energy efficient pressing

#83
20160060815
2016-03-03

PROCESS FOR TREATING CELLULOSE FIBRES IN ORDER TO PRODUCE A COMPOSITION COMPRISING MICROFIBRILLATED CELLULOSE AND A COMPOSITION PRODUCED ACCORDING TO THE PROCESS

#84
20150376837
2015-12-31

Colored aramid paper and process for producing same

#85
20150275436
2015-10-01

LAMINATES PREPARED FROM DECOR PAPER COMPRISING SELF-DISPERSING PIGMENTS

#86
20150259537
2015-09-17

PROCESS FOR MAKING SILICA CONTAINING SELF-DISPERSING PIGMENTS

#87
20150173416
2015-06-25

Cigarette paper with homogeneous visual impression

#88
20150159330
2015-06-11

Fibrous structures including an active agent and having a graphic printed thereon

#89
20150114582
2015-04-30

Sheets and fibrids comprising a mixture of poly(m-phenylene isophthalamide) and copolymer made from 5(6)-amino-2-(p-aminophenyl)benzimidazole

#90
20150111054
2015-04-23

Coated substrate and system and method for making the same

#91
20150090415
2015-04-02

Process for preparing self-binding pigment particle suspensions

#92
20150083026
2015-03-26

Process for preparing self-binding pigment particles

#93
20150056148
2015-02-26

Anti-microbial hand towel with time-delay chromatic transfer indicator and absorbency rate delay

#94
20150047799
2015-02-19

Paper products and methods and systems for manufacturing such products

#95
20150020987
2015-01-22

PROCESS FOR PREPARING FLUFF PULP SHEET WITH CATIONIC DYE AND DEBONDER SURFACTANT AND FLUFF PULP SHEET MADE FROM SAME

#96
20140338566
2014-11-20

Method for surface treatment of inorganic pigment particles

#97
20140259458
2014-09-18

Processes and compositions for brightness improvement in paper production

#98
20140171560
2014-06-19

AQUEOUS COMPOSITIONS FOR WHITENING AND SHADING IN COATING APPLICATIONS

#99
20140134427
2014-05-15

Treated inorganic pigments having reduced photoactivity and anti-microbial properties and their use in paper slurries

#100
20140027078
2014-01-30

Paper that cannot be forged using solvents

#101
20140023844
2014-01-23

Coated printing papers and processes for preparing them

#102
20140000483
2014-01-02

Method for the surface treatment of inorganic pigment particles

#103
20130269124
2013-10-17

Azo dyes

#104
20130224450
2013-08-29

Paper enhancement treatment with decreased calcium chloride

#105
20130105099
2013-05-02

Fluorescent dyes for paper dyeing

#106
20130087298
2013-04-11

Sensor Wipe For Detecting Surface Conditions

#107
20130078190
2013-03-28

Anti-microbial hand towel with time-delay chromatic transfer indicator and absorbency rate delay

#108
20120311798
2012-12-13

Aqueous sizing compositions for shading in size press applications

#109
20120270458
2012-10-25

MEDICAL NONWOVEN FABRIC, AND PREPARATION METHOD THEREOF

#110
20120247702
2012-10-04

Method for surface treatment of a titanium dioxide pigment

#111
20120225267
2012-09-06

Web substrates having wide color gamut indicia printed thereon

#112
20120222578
2012-09-06

ABSORBENT FIBROUS WEB SUBSTRATES HAVING DISTINCT GRAPHICS AND METHOD FOR PRINTING SUBSTRATES

#113
20120205062
2012-08-16

Sheet material comprising at least one watermark having a colored shade

#114
20120159719
2012-06-28

Black trisazo dyes, their preparation and their use

#115
20120132381
2012-05-31

NOVEL PAPER AND METHOD OF MANUFACTURING THEREOF

#116
20120132380
2012-05-31

Method of manufacturing paper and products obtained by the method

#117
20120118522
2012-05-17

Aqueous Solutions Of Acid Dyes For Shading In Size Press Applications

#118
20120097773
2012-04-26

FIBROUS MATERIALS AND COMPOSITES

#119
20120058536
2012-03-08

Polymer made of a primary amine functionalized polymer and a hemicellulose

#120
20120048493
2012-03-01

Process for preparing fluff pulp sheet with cationic dye and debonder surfactant

#121
20120005845
2012-01-12

Aqueous direct dye formulations

#122
20110302722
2011-12-15

LACCASES AND METHODS OF USE THEREOF AT LOW TEMPERATURE

#123
20110296632
2011-12-08

Aqueous dye dispersions

#124
20110274856
2011-11-10

Coated printable substrates resistant to acidic highlighters and printing solutions

#125
20110272507
2011-11-10

Fibrous materials and composites

#126
20110259536
2011-10-27

Process for making material for acquisition of liquids and disposable absorbent article comprising the material

#127
20110250418
2011-10-13

IMPROVED COATING METHOD

#128
20110200793
2011-08-18

Method of dying and coating paper for printing

#129
20110183126
2011-07-28

Substrate marking

#130
20110172093
2011-07-14

Creating background colors on thermal printing material

#131
20110171438
2011-07-14

Laser imageable paper

#132
20110139356
2011-06-16

Method of manufacturing coating elements and production installation relating thereto

#133
20110059298
2011-03-10

Surface-modified inorganic pigment, colored surface-modified inorganic pigment, recording medium and production processes thereof, and image forming method and recorded image

#134
20110045252
2011-02-24

WEB MATERIALS COMPRISING BROWN INK

#135
20110045078
2011-02-24

Process for producing cellulosic shaped articles, cellulosic shaped articles and the use thereof

#136
20110027545
2011-02-03

Hygiene or wiping product comprising at least one patterned ply and method for patterning the ply

#137
20100314060
2010-12-16

COLORED PAPER WITH CONTROLLED TINT PENETRATION

#138
20100311296
2010-12-09

DYED CELLULOSE COMMINUTION SHEET, DYED NONWOVEN MATERIAL, AND PROCESSES FOR THEIR PRODUCTION

#139
20100310796
2010-12-09

INKJET RECORDING PAPER

#140
20100285324
2010-11-11

Composition for surface colouration of paper

#141
20100219626
2010-09-02

Security sheet including an iridescent security mark

#142
20100206501
2010-08-19

Paper products and methods and systems for manufacturing such products

#143
20100189931
2010-07-29

Ink-jet-printable decorative paper

#144
20100174018
2010-07-08

AQUEOUS FORMULATIONS AND THE USE THEREOF FOR COLORING OR COATING SUBSTRATES

#145
20100167028
2010-07-01

Stable liquid formulation

#146
20100126683
2010-05-27

Paper Dyeing Process

#147
20100116010
2010-05-13

Aqueous pigment preparations

#148
20100092743
2010-04-15

ABSORBENT FIBROUS WEB SUBSTRATES HAVING DISTINCT GRAPHICS AND METHOD FOR PRINTING SUBSTRATES

#149
20100006248
2010-01-14

Security substrate comprising watermark

#150
20100000033
2010-01-07

Basic bisazo compounds

#151
20090321552
2009-12-31

Moldable paper product

#152
20090321026
2009-12-31

Paper products and methods and systems for manufacturing such products

#153
20090301676
2009-12-10

Sheet material comprising at least one watermark having a colored shade

#154
20090226670
2009-09-10

Embossing device for at least two-layered planar products such as toilet paper, tissues, or similar

#155
20090133201
2009-05-28

Process for surface colouration of paper

#156
20090083913
2009-04-02

Disazo dyes and dye compositions for shading white paper

#157
20090077756
2009-03-26

Aqueous solutions of direct dyes

#158
20090071396
2009-03-19

SYSTEM FOR PRODUCTION-LINE PRINTING ON WET WEB MATERIAL

#159
20090068389
2009-03-12

Block out label, label sheet, and related method

#160
20090065141
2009-03-12

Method for producing a non-slip coating

#161
20090044349
2009-02-19

Reactive Dye Grafted Binders

#162
20090025895
2009-01-29

Process for the Manufacture of Paper and Board

#163
20090011193
2009-01-08

Abrasion resistant decorative sheet, especially overlay, having a particular optical effect

#164
20080307588
2008-12-18

1-phenoxy-2-propanol as a formulating aid for dyes

#165
20080271865
2008-11-06

PIGMENTS FOR COLORED PAPER

#166
20080249206
2008-10-09

Material for acquisition of liquids and disposable absorbent article comprising the material

#167
20080206541
2008-08-28

Fibrous materials and composites

#168
20080201872
2008-08-28

Aqueous Formulations Of Dye Mixtures

#169
20080196180
2008-08-21

6-azo-5,5′-dihydroxy-7,7′-disulfo-2-2′ dinaphthylamine derivatives

#170
20080128666
2008-06-05

CHEMILUMINESCENT SYSTEM

#171
20080015317
2008-01-17

Water-discoloring wall adhering material and water-discoloring wall adhering material set using the same

#172
20070266894
2007-11-22

Paper coating compositions

#173
20070237807
2007-10-11

Anti-microbial hand towel with time-delay chromatic transfer indicator and absorbency rate delay

#174
20070202281
2007-08-30

Colored paper and substrates coated for enhanced printing performance

#175
20070199165
2007-08-30

Polyvinylamine treatments to improve dyeing of cellulosic materials

#176
20070169903
2007-07-26

Papermaking processes using coagulants and optical brighteners

#177
20070110963
2007-05-17

Colored sanitary tissue paper and production method thereof

#178
20070101515
2007-05-10

Concentrated aqueous compositions of dyestuffs

#179
20070083040
2007-04-12

Storagestable concentrated aqueous solutions of anionic dis-or tetrazo dyestuffs

#180
20070082212
2007-04-12

Fragrance release paper

#181
20070012412
2007-01-18

Laminate paper having increased pH stability and method of making same

#182
20060242770
2006-11-02

Xyloglucan conjugates useful for modifying cellulosic textiles

#183
20060185807
2006-08-24

Process for production on nonuniformly intensely colored paper and paper obtainable by such process

#184
20060142544
2006-06-29

Polymeric etheramines, their production and use

#185
20060108082
2006-05-25

Tissue product with silk fibers and method of making the same

#186
20060102306
2006-05-18

Paper improver

#187
20060096723
2006-05-11

Magnetically attractable paper structure

#188
20060042028
2006-03-02

Liquid formulations of direct dyes

#189
20050217811
2005-10-06

Whitened crosslinked cellulosic fibers and related methods

#190
20050158570
2005-07-21

Highly-opaque layered sheet and the production method thereof

#191
20050132510
2005-06-23

Liquid formulations of direct dyes

#192
20050131363
2005-06-16

Odor-reducing quinone compounds

#193
20050090654
2005-04-28

Water-soluble yellow azo dyes

#194
20050064099
2005-03-24

System for production-line printing on wet web material

#195
20050025972
2005-02-03

Method for coloring cellulosic materials using cationic pigment dispersion

#196
18473215
2024-03-05

Preparation method and application of multifunctional intelligent cellulose-based visual label

#197
18419019
2024-12-10

Sodium alginate nanoparticles integrated with anthocyanidin biomolecules for optical validation