WO1997041302A1 - Composition de papier apprete a la colophane et son procede de preparation - Google Patents

Composition de papier apprete a la colophane et son procede de preparation Download PDF

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Publication number
WO1997041302A1
WO1997041302A1 PCT/US1997/007087 US9707087W WO9741302A1 WO 1997041302 A1 WO1997041302 A1 WO 1997041302A1 US 9707087 W US9707087 W US 9707087W WO 9741302 A1 WO9741302 A1 WO 9741302A1
Authority
WO
WIPO (PCT)
Prior art keywords
rosin
amount
paper
composition
calcium carbonate
Prior art date
Application number
PCT/US1997/007087
Other languages
English (en)
Inventor
Robert Anthony Gill
Alan James Bauch
Matthew Frederick Slozer
Original Assignee
Minerals Technologies Inc.
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 Minerals Technologies Inc. filed Critical Minerals Technologies Inc.
Publication of WO1997041302A1 publication Critical patent/WO1997041302A1/fr

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
    • D21H21/00—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
    • D21H21/14—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
    • D21H21/16—Sizing or water-repelling agents
    • 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
    • D21H17/62—Rosin; Derivatives thereof
    • 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
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
    • D21H23/765—Addition of all compounds to the pulp

Definitions

  • This invention relates to papermaking systems, particularly systems containing neutral pH rosin sizing and mineral fillers and/or coatings, such as calcium carbonate.
  • the invention further relates to methods to achieve such systems by the providing of certain agents to such systems.
  • the invention relates to rosin type papers having increased amounts of fillers and/or coatings.
  • paper can be made with a rosin size to inhibit the penetrability of liquids into the paper sheet.
  • Neutral pH rosin size systems have been developed which utilize a dispersed rosin size and a source of aluminum ions.
  • the aluminum ions acts to fix the rosin to the cellulose fibers of the paper.
  • Typical sources of aluminum ions in such systems include aluminum sulfate and polyaluminum chloride.
  • Certain metal salts can be used in paper systems as a filling or coating material.
  • a problem can arise when a metal salt is used due to the presence of divalent cations.
  • Free divalent cations can be present due to a number of causes.
  • Such ions may be present since certain chemical compounds, such as aluminum sulfate or polyaluminum chloride, liberate divalent cations from other certain compounds.
  • calcium ions can be liberated from calcium carbonates.
  • a further example is the release of ions from precipitated calcium carbonate through a buffering action.
  • Such divalent cations can react with the rosin to form metal rosinate soaps, such as calcium rosinate soaps when calcium ions are the divalent cations.
  • Such soap formation interferes with the formation of a desired aluminum - rosin complex and competes with the sizing-fiber fixing of the rosin by the available aluminum ions.
  • An object of the present invention is to provide improved papermaking systems having neutral pH rosin size fixed to cellulose fibers when a metal salt, such as calcium carbonate, is present as filler or coating material.
  • Another object is to provide methods for achieving such systems. Yet another object is to provide a novel paper composition having an enhanced amount of filler and sizing material. Yet another object is to provide a novel composition to achieve the above results.
  • the method is performed where a calcium carbonate is used as a paper filling and/or coating and a sodium phosphate compound is used to scavenge divalent cations, such as calcium ions, so as to prevent the formation of calcium rosinates which interfere with rosin sizing of the paper formed.
  • divalent cations such as calcium ions
  • novel paper compositions made with paper stock having in novel combination at least enhanced amounts of rosin-reactive coating and/or filling materials and a desired range of the amount of rosin.
  • a paper filler composition for rosin-sized paper comprising a calcium carbonate material having in association therewith a precipitating or chelating agent effective to reduce the presence of calcium ions when the filler composition is added to a papermaking slurry so as to prevent the formation of soap.
  • One embodiment of the present invention is a method of making paper comprising (1) admixing a first amount of chelating or precipitating agent and a second amount of a slurry comprising a third amount of a metal salt, preferably a calcium carbonate, and a fourth amount of divalent cations, the admixing and first amount of chelating or precipitating agent being effective to produce a fifth amount of slurry having at least a substantial reduction of the amount of free divalent cations, and (2) admixing the fifth amount of slurry and a sixth amount of a paper furnish comprising rosin, said admixing performed at about an alkaline or neutral pH.
  • the chelating or precipitating agent used is one which is effective to remove the divalent cations from solution without creating substantial problems in the papermaking process. If need be, the chelated or precipitated divalent cations can be removed before introduction of the fifth amount of slurry to the paper furnish.
  • the preferred chelating or precipitating agent comprises one or more phosphate moiety.
  • a phosphate moiety contains phosphorous and oxygen atoms and has a negative charge. Non-limiting examples are PO 4 and P 3 O IO "5 . Additional atoms, such as hydrogen among others, can be present.
  • the chelating or precipitating agent is selected from sodium phosphate compounds, preferably sodium hydrogen phosphate (Na 3 HPO 4 ), also referred to as dibasic sodium phosphate, and sodium tripolyphosphate (Na 5 P 3 O )0 ).
  • sodium phosphate compounds preferably sodium hydrogen phosphate (Na 3 HPO 4 ), also referred to as dibasic sodium phosphate, and sodium tripolyphosphate (Na 5 P 3 O )0 ).
  • Other non- limiting examples are tribasic sodium phosphate (Na 3 PO 4 ), tetrasodium pyrophosphate (Na 4 PO 7 ), and sodium metaphosphates, (NaPO) n where n is a small integer greater than three (3).
  • the slurry comprising the metal salt is a slurry compatible with the papermaking process.
  • the metal salt is used as an intended paper filler or coating or both.
  • a preferred metal salt is calcium carbonate.
  • the calcium carbonate can be present as a precipitated calcium carbonate (PCC), ground calcium carbonate (GCC) or a lime derivative, preferably as PCC or GCC, more preferably as PCC.
  • Another metal salt is magnesium sulphate.
  • the divalent cations can be any divalent cations which would react with rosin to create a rosinate soap, typically a metal rosinate soap.
  • a source of the divalent cations could be the metal salt.
  • Such cations can be compounds, but are typically single atom ions such as calcium ions or magnesium ions.
  • the method of admixing and the amount of the chelating or precipitating agent should be effective to produce a fifth amount of slurry having at least a substantial reduction of the amount of divalent cations initially present in the second amount of slurry.
  • a substantial reductions is at least a reduction of about fifteen percent, preferably at least about fifty percent, more preferably essentially all of the free divalent ions.
  • the produced slurry has a reduction of calcium ions in these stated amounts.
  • the fifth amount of slurry comprises at least about fifteen percent by weight calcium carbonate and at most about one part per million (ppm) by weight free calcium ions.
  • the present invention of making paper is effective to prevent formation of a substantial amount of divalent metal rosinate soaps, particularly calcium rosinates among others.
  • Such rosinates are formed in the reaction of divalent cations and the rosin in the sixth amount of paper furnish.
  • the amount of rosinates is deemed substantial when the amount is sufficient to substantially interfere with the reaction between aluminum and rosin which creates sizing in paper.
  • Such competition is deemed substantial when the rosinate formed is at least about one-fourth percent by weight of the paper stock.
  • the admixing of the fifth amount of slurry and the sixth amount of a paper furnish is performed in conditions at about an alkaline or neutral pH, preferably from about 6.5 pH to about 8.0 pH, more preferably about 7 pH.
  • the present invention is a rosin type paper composition
  • a rosin type paper composition comprising paper stock; at least about ten percent by weight coating and/or filler material, the material having a moiety which is rosin-reactive when in an ionic form; and less than a substantial amount of rosin soap.
  • a "rosin type paper” is a paper containing an effective amount of rosin, preferably from at least about 0.05 ⁇ percent, more preferably from about 0.05 percent to at about 1.0 percent by weight rosin.
  • the coating and/or filler material is a calcium salt, more preferably calcium carbonate or calcium sulphate.
  • the rosin preferably has aluminum ions associated with the rosin to facilitate the sizing phenomenon.
  • a substantial amount of rosin soap is that amount which would make the paper commercially unattractive. Such unattractiveness would not permit using an amount of coating and/or filler material in a substantial amount, such as at least about 10 percent for example, because of the formation of undesired soap in the absence of the use of the use chelating or precipitating agent in the present invention.
  • the paper described is an alkaline or neutral paper
  • the coating and/or filler material is precipitated calcium carbonate
  • the rosin aluminum complex originates from a dispersed rosin or a rosin soap
  • the filler in the paper stock is effectively treated or pretreated with a sodium phosphate, preferably dibasic sodium phosphate or sodium tripolyphosphate, to prevent formation of a substantial amount of divalent metal rosinate soap.
  • the divalent metal rosinate soap is calcium rosinate soap.
  • the present invention is a paper filler composition for rosin-sized paper.
  • the composition contains a calcium carbonate material, preferably precipitated calcium carbonate, having in association therewith a precipitating or chelating agent effective to reduce the presence of calcium ions when the filler composition is added to a papermaking slurry.
  • the chelating or precipitating agent is one of those described hereinabove.
  • the agent is associated with the calcium carbonate material in being intimately mixed therewith or affixed to the calcium carbonate material itself, such as in a pretreatment step before the introduction of the calcium carbonate to the papermaking process.
  • the agent already associated with the calcium carbonate is present in an amount effective to prevent any generated calcium ions, such as from buffering activity in solution, from interfering substantially with the subsequent rosin sizing process.
  • Such agent can be, but need not be, confined to the superficial surface of the calcium carbonate material.
  • the agent may be provided within the superficial boundaries of the calcium carbonate material, such as in the pores or cracks of the material.
  • the agent is provided in an amount sufficient to prevent the formation of soap which interferes substantially with the rosin sizing process.
  • a calcium selective electrode was standardized. Then the electrode was placed in a 100 gram slurry containing 22 dry grams of Minerals Technologies Inc. produced precipitated calcium carbonate. Two milliliters of ISA was added. The precipitating agents identified in Table 1 were added as a solution in 0.5 percent by weight increments and the readings recorded.
  • Handsheets were prepared using four inch Turbulent Pulse apparatus, and a 75/25 Prince Albert northern hardwood/softwood pulp blend refined to 400 + 25 Canadian Standard Freeness.
  • Neutros Extra rosin manufactured by Akzo- Nobel
  • alum manufactured by General Chemical
  • starch cationic potato starch manufactured by Akzo-Nobel
  • HST Hercules Sizing Tests
  • Example 4 Effect of Precipitant Treatment Level on Sizing Performance in a Neutral Rosin Svstem
  • HST Hercules Sizing Tests

Landscapes

  • Paper (AREA)

Abstract

L'invention concerne une composition de papier et un procédé servant à effectuer un apprêt à la colophane, amélioré et abordable, sur un papier contenant des sels de métal. Cette composition de papier consiste en une composition de papier à la colophane, en un matériau de charge ou de revêtement et en de la colophane en quantités supérieures. Ce procédé consiste à utiliser un accepteur afin de diminuer la quantité de cations libres divalents pouvant inhiber l'apprêt à la colophane de la composition de papier. Cet accepteur peut être un agent chélatant ou un agent de précipitation, du type possédant une fraction phosphate. L'invention permet de limiter ou d'éviter l'apparition de savon dans les milieux d'apprêt à la colophane, en particulier, ceux conçus pour des papiers contenant des charges de carbonate de calcium.
PCT/US1997/007087 1996-04-29 1997-04-28 Composition de papier apprete a la colophane et son procede de preparation WO1997041302A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63941696A 1996-04-29 1996-04-29
US08/639,416 1996-04-29

Publications (1)

Publication Number Publication Date
WO1997041302A1 true WO1997041302A1 (fr) 1997-11-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/007087 WO1997041302A1 (fr) 1996-04-29 1997-04-28 Composition de papier apprete a la colophane et son procede de preparation

Country Status (4)

Country Link
AR (1) AR006905A1 (fr)
ID (1) ID17277A (fr)
TW (1) TW385350B (fr)
WO (1) WO1997041302A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4162109A4 (fr) * 2020-06-09 2023-10-18 ITI Technologies, Inc. Compositions d'amélioration du papier, utilisations associées et papier amélioré

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8852400B2 (en) * 2010-11-02 2014-10-07 Ecolab Usa Inc. Emulsification of alkenyl succinic anhydride with an amine-containing homopolymer or copolymer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597251A (en) * 1968-11-19 1971-08-03 Wyandotte Chemical Corp Calcium carbonate product
US4240870A (en) * 1978-09-13 1980-12-23 Shiraishi Kogyo Kaisha, Ltd. Filled paper
US4610801A (en) * 1982-09-24 1986-09-09 Blue Circle Industries Plc Compositions comprising mineral particles in suspension and method of treating aqueous systems therewith
US5026457A (en) * 1985-01-08 1991-06-25 Skw Trostberg Aktiengesellschaft Process for sizing in the production of paper, cardboard, paperboard and other cellulose containing materials
US5156719A (en) * 1990-03-09 1992-10-20 Pfizer Inc. Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597251A (en) * 1968-11-19 1971-08-03 Wyandotte Chemical Corp Calcium carbonate product
US4240870A (en) * 1978-09-13 1980-12-23 Shiraishi Kogyo Kaisha, Ltd. Filled paper
US4610801A (en) * 1982-09-24 1986-09-09 Blue Circle Industries Plc Compositions comprising mineral particles in suspension and method of treating aqueous systems therewith
US5026457A (en) * 1985-01-08 1991-06-25 Skw Trostberg Aktiengesellschaft Process for sizing in the production of paper, cardboard, paperboard and other cellulose containing materials
US5156719A (en) * 1990-03-09 1992-10-20 Pfizer Inc. Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4162109A4 (fr) * 2020-06-09 2023-10-18 ITI Technologies, Inc. Compositions d'amélioration du papier, utilisations associées et papier amélioré
US11905663B2 (en) 2020-06-09 2024-02-20 Iti Technologies, Inc. Paper enhancing compositions, uses thereof and enhanced paper

Also Published As

Publication number Publication date
ID17277A (id) 1997-12-18
AR006905A1 (es) 1999-09-29
TW385350B (en) 2000-03-21

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