EP0099547A1 - Paper sizing process - Google Patents

Paper sizing process Download PDF

Info

Publication number
EP0099547A1
EP0099547A1 EP83106892A EP83106892A EP0099547A1 EP 0099547 A1 EP0099547 A1 EP 0099547A1 EP 83106892 A EP83106892 A EP 83106892A EP 83106892 A EP83106892 A EP 83106892A EP 0099547 A1 EP0099547 A1 EP 0099547A1
Authority
EP
European Patent Office
Prior art keywords
paper
aluminium
sizing
calcium carbonate
precipitating agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP83106892A
Other languages
German (de)
English (en)
French (fr)
Inventor
Nicola Spina
Antonio Isolati
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Prodeco SpA
Original Assignee
Prodeco SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Prodeco SpA filed Critical Prodeco SpA
Publication of EP0099547A1 publication Critical patent/EP0099547A1/en
Withdrawn legal-status Critical Current

Links

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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums

Definitions

  • the present invention relates to a paper sizing process and more specifically to a process for the sizing of paper filled with calcium carbonate.
  • the fiber aqueous suspension is supplemented with a resin sizing agent, normally based on colophony, which is precipitated by means of a precipitating agent.
  • the precipitating agent of most popular and common use is the alumium sulphate which is added to the aqueous suspension of fibers in form of a water solution.
  • the fiber suspension is added with an inert filler, suitable for giving particular properties to the paper.
  • the specification indicated a general range of 5 to 8, and a preferred interval of 5.5 to 7.0.
  • a polyvalent anion for example the anion of a mineral acid such as sulphuric acid.
  • aluminium polychloride and polyhydroxychloride polymers which for instance in. the case of the polyhydroxychlorides have the general formula: wherein 1 is an integer varying between 5 and 15 for instance of the type produced according to the USP No. 3909439.
  • the present invention provides a process for the paper sizing, of the type in which a precipitating agent is added to an aqueous suspension of fibers containing a colophony based resin size, wherein morevoer calcium carbonate or a like substance is used as the paper filler, characterized in that as the precipitating agent there is used a compound selected among aluminium polyhydroxychlorides, having the formula: wherein 0.85 r x ⁇ 6 and aluminium polychlorides having the f ormula wherein 0 ⁇ , the precipitation taking place at a pH of neutral to alkaline.
  • the process according to the invention permits unexpected and unforeseable results to be achived, since it becomes possible to use traditional sizing agents instead of special highly expensive sizing agents, whereby also this sizing operation is brought within a traditional technology, satisfactorily used since long time. There is moreover permitted the recovery and recycling of the coated brokes. Examples are now given illustrating, in a non limiting manner, the results achieved by the present invention.
  • This example discloses a traditional sizing treatment, relating to the production of fine white paper, having a weight of 140 g/sq.m. wherein kaolin is used as the filler.
  • the paper pulp comprises bleached cellulose (90%) and waste paper pulp (10%).
  • This example relates to the production of paper for exercise books having a weight of 65g/sq.m. filled with 5% of calcium carbonate and 5% of kaolin, these percentages being referred to the dry paper.
  • the paper pulp forming the fiber suspension had the following composition:
  • This example relates to the production of 50 g/sq.m paper useful as a support for coated paper.
  • the pulp forming the fiber suspension had the following composition:
  • coated brokes have on the overage a calcium carbonate content of 20-30%.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Making Paper Articles (AREA)
  • Developing Agents For Electrophotography (AREA)
EP83106892A 1982-07-14 1983-07-13 Paper sizing process Withdrawn EP0099547A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22388/82A IT1151847B (it) 1982-07-14 1982-07-14 Procedimento per la collatura di carta
IT2238882 1982-07-14

Publications (1)

Publication Number Publication Date
EP0099547A1 true EP0099547A1 (en) 1984-02-01

Family

ID=11195601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106892A Withdrawn EP0099547A1 (en) 1982-07-14 1983-07-13 Paper sizing process

Country Status (9)

Country Link
EP (1) EP0099547A1 (no)
JP (1) JPS5926594A (no)
AU (1) AU1681883A (no)
BR (1) BR8303750A (no)
ES (1) ES524085A0 (no)
FI (1) FI832579A (no)
IT (1) IT1151847B (no)
NO (1) NO162978C (no)
ZA (1) ZA835035B (no)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333368A2 (en) * 1988-03-18 1989-09-20 Eka Nobel Ab Paper sizing method
WO1990008852A1 (es) * 1989-02-02 1990-08-09 Costas Poch Juan Jose Procedimiento de obtencion de una cola reactiva cationizada para el encolado de papel en masa o en prensa y emulsion asi obtenida
US5145522A (en) * 1989-04-28 1992-09-08 Arakawa Kagaku Kogyo Kabushiki Kaisha Ketene dimer sizing agent for paper making
US5599388A (en) * 1995-08-24 1997-02-04 Ecc International Inc. Acid resistant calcium carbonate composition containing an aluminum salt, uses therefor and processes for its production
US10982391B2 (en) 2016-06-01 2021-04-20 Ecolab Usa Inc. High-efficiency strength program used for making paper in higher charge demand system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61194299A (ja) * 1985-02-21 1986-08-28 株式会社　協立有機工業研究所 中性抄紙における填料歩留向上方法
JPH0537857U (ja) * 1991-10-25 1993-05-21 オーチス エレベータ カンパニー エレベーター用開閉扉の開閉安全装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1005346A (fr) * 1947-07-05 1952-04-09 Perfectionnement à la fabrication des papiers et cartons
CA759363A (en) * 1964-05-26 1967-05-23 Harima Kasei Kogyo Co. Sizing of paper
FR2418297A1 (fr) * 1978-02-27 1979-09-21 Ugine Kuhlmann Amelioration aux procedes de fabrication de papiers et de cartons

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1005346A (fr) * 1947-07-05 1952-04-09 Perfectionnement à la fabrication des papiers et cartons
CA759363A (en) * 1964-05-26 1967-05-23 Harima Kasei Kogyo Co. Sizing of paper
FR2418297A1 (fr) * 1978-02-27 1979-09-21 Ugine Kuhlmann Amelioration aux procedes de fabrication de papiers et de cartons

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ABSTRACTS BULL. INST. PAPER CHEM., vol. 49, no. 3, September 1978, page 252, no. 2132, Appleton, Wisconsin, USA *
TAPPI J. TECHN. SASS. PULP PAPER IND., vol. 65, no. 3, March 1982, pages 125-130, Atlanta, Georgia, USA *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333368A2 (en) * 1988-03-18 1989-09-20 Eka Nobel Ab Paper sizing method
EP0333368A3 (en) * 1988-03-18 1991-03-27 Eka Nobel Ab Paper sizing method
WO1990008852A1 (es) * 1989-02-02 1990-08-09 Costas Poch Juan Jose Procedimiento de obtencion de una cola reactiva cationizada para el encolado de papel en masa o en prensa y emulsion asi obtenida
US5145522A (en) * 1989-04-28 1992-09-08 Arakawa Kagaku Kogyo Kabushiki Kaisha Ketene dimer sizing agent for paper making
US5599388A (en) * 1995-08-24 1997-02-04 Ecc International Inc. Acid resistant calcium carbonate composition containing an aluminum salt, uses therefor and processes for its production
AU699931B2 (en) * 1995-08-24 1998-12-17 Ecc International Inc. Acid resistant calcium carbonate composition containing an aluminum salt and uses therefor
US10982391B2 (en) 2016-06-01 2021-04-20 Ecolab Usa Inc. High-efficiency strength program used for making paper in higher charge demand system

Also Published As

Publication number Publication date
NO162978C (no) 1990-03-14
ES8405866A1 (es) 1984-06-16
IT1151847B (it) 1986-12-24
JPS5926594A (ja) 1984-02-10
NO162978B (no) 1989-12-04
IT8222388A1 (it) 1984-01-14
AU1681883A (en) 1984-01-19
FI832579A0 (fi) 1983-07-14
BR8303750A (pt) 1984-02-21
ES524085A0 (es) 1984-06-16
IT8222388A0 (it) 1982-07-14
ZA835035B (en) 1984-07-25
FI832579A (fi) 1984-01-15
NO832549L (no) 1984-01-16

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19840724

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19851206

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ISOLATI, ANTONIO

Inventor name: SPINA, NICOLA