Classifications

• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H5/00—Special paper or cardboard not otherwise provided for
  • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
  • D21H5/1254—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of fibres which have been treated to improve their dispersion in the paper-making furnish
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
  • D21H13/10—Organic non-cellulose fibres
  • D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
  • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
  • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
  • D21H23/06—Controlling the addition
  • D21H23/08—Controlling the addition by measuring pulp properties, e.g. zeta potential, pH
  • D21H23/10—Controlling the addition by measuring pulp properties, e.g. zeta potential, pH at least two kinds of compounds being added

Landscapes

• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Paper (AREA)
• Artificial Filaments (AREA)
• Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
• Processes Of Treating Macromolecular Substances (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
• Reinforced Plastic Materials (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=9181725

Family Applications (1)

Country Status (12)

Families Citing this family (10)

Family Cites Families (3)

• 1976
  • 1976-12-30 FR FR7639548A patent/FR2376175A1/fr active Granted
• 1977
  • 1977-12-28 GB GB53946/77A patent/GB1565720A/en not_active Expired
  • 1977-12-28 DE DE2758499A patent/DE2758499C2/de not_active Expired
  • 1977-12-28 JP JP15753877A patent/JPS5392876A/ja active Granted
  • 1977-12-28 US US05/864,791 patent/US4152317A/en not_active Expired - Lifetime
  • 1977-12-29 CH CH1619877A patent/CH611100B/fr unknown
  • 1977-12-29 IE IE2629/77A patent/IE46227B1/en not_active IP Right Cessation
  • 1977-12-29 IT IT31369/77A patent/IT1090375B/it active
  • 1977-12-29 LU LU78786A patent/LU78786A1/xx unknown
  • 1977-12-29 NL NLAANVRAGE7714553,A patent/NL183663C/xx not_active IP Right Cessation
  • 1977-12-29 DK DK583977A patent/DK158904C/da not_active IP Right Cessation
  • 1977-12-29 BE BE183952A patent/BE862454A/xx not_active IP Right Cessation

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