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WO1996035841A1 - Dispersions de collage - Google Patents

Dispersions de collage Download PDF

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Publication number
WO1996035841A1
WO1996035841A1 PCT/SE1996/000591 SE9600591W WO9635841A1 WO 1996035841 A1 WO1996035841 A1 WO 1996035841A1 SE 9600591 W SE9600591 W SE 9600591W WO 9635841 A1 WO9635841 A1 WO 9635841A1
Authority
WO
WIPO (PCT)
Prior art keywords
sizing
dispersion
cationic
dispersions
rosin
Prior art date
Application number
PCT/SE1996/000591
Other languages
English (en)
Inventor
Erik Lindgren
Kjell Andersson
Original Assignee
Eka Chemicals Ab
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 Eka Chemicals Ab filed Critical Eka Chemicals Ab
Priority to AU57841/96A priority Critical patent/AU5784196A/en
Publication of WO1996035841A1 publication Critical patent/WO1996035841A1/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
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/17—Ketenes, e.g. ketene dimers
    • 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
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch
    • D21H17/29—Starch cationic
    • 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

Definitions

  • the present invention relates to cationic dispersions of sizing agents which are based on rosin or cellulose-reactive material and, more particularly, to such cationic sizing dispersions which comprise a water-soluble inorganic alkali metal salt.
  • Cationic dispersions of sizing agents are widely used in the production of paper where the sizing agents impart liquid repellent or hydrophobic properties to the paper produced.
  • the sizing agents can be based on naturally occuring materials, such as for example rosin, and/or synthetic cellulose-reactive sizing agents, such as for example alkyl ketene dimers (AKD) and alkenyl succinic anhydrides (ASA) .
  • Dispersions of such agents usually result in good sizing but it has been observed that the dispersions can exhibit stability problems. The practical consequences of insufficient stability properties on storage have been seen in terms of markedly increased visco ⁇ sity, agglomeration and phase separation which lead to deposi ⁇ tions, difficulty in dosing the dispersions and deteriorated sizing.
  • the stability of cationic dispersions of sizing agents can be improved by incorporating inorganic alkali metal salts.
  • the dispersions according to the invention have low tendency to agglomerate and separate on storage, show very good shelf life and are less sensitive to changes in pH.
  • incorporating inorganic alkali metal salts into cationic dispersions in accordance with the invention results in lower viscosities, both initially and after storage, which simpli ⁇ fies handling and improves pumpability. Many of these positive effects are also observed using cationic sizing dispersions containing aluminium compounds where the alkali metal salts provide further improvement of the dispersion stability.
  • the present invention thus relates to aqueous disper ⁇ sions as further defined in the appended claims.
  • the sizing agent present in the dispersions according to the invention can be based on natural products, such as rosin, or be synthetic, e.g. a cellulose-reactive sizing agent, or mixtures thereof.
  • the term rosin used herein refers to rosin which can be derived from customary rosins, e.g. from gum rosin, tall oil rosin, wood rosin and mixtures thereof, in their crude or refined state.
  • the rosin-based sizing agent can be selected from rosin, disproportionated rosin, hydrogenated rosin, formaldehyde-treated rosin, polymerized rosin, esteri- fied rosin, fortified rosin and mixtures thereof.
  • Suitable cellulose-reactive sizing agents can be selec ⁇ ted from the group consisting of ketene dimers, acid anhydri- des, organic isocyanates, carbamoyl chlorides and mixtures thereof, preferably ketene dimers and acid anhydrides, most preferably ketene dimers.
  • Suitable ketene dimers have the formula (I) shown below, in which R and R represent hydro ⁇ carbon groups having about 6 to about 30 carbon atoms, usually being alkyl groups having 12 to 20 carbon atoms, such as hexa- decyl and octadecyl groups.
  • Suitable acid anhydrides can be representeded by the general formula (II) shown below, in which R and R can be identical or different and represent hydrocarbon groups containing up to 30 carbon atoms, or R and R 4 together with the -C-O-C- moiety can form a 5 to 6 membered ring, which can be substituted with hydrocarbon groups con ⁇ taining up to 30 carbon atoms.
  • the acid anhydrides which are used commercially to the greatest extent are alkyl and alkenyl succinic anhydrides (ASA) and particularly isooctadecenyl succinic anhydride.
  • the present dispersions contains at least 0.1% by weight of sizing agent, suitably at least 1% and pre- ferably at least 5%.
  • the upper limit is depending on the type of sizing agent used and usually this is about 50% by weight. In most cases, the beneficial effects of incorporating alkali metal salts is more pronounced where the solids content of the sizing dispersions is high.
  • the content of cellulose- reactive sizing agent is within the range of from 5 to 25% and preferably from 8 to 20% by weight.
  • the content of rosin-based sizing agent is suitably within the range of from 10 to 45% and preferably from 20 to 40% by weight.
  • the dispersions according to the invention contain a water-soluble inorganic alkali metal salt and hereby is meant that it should be soluble in water in amounts corresponding to those present in the dispersions.
  • the alkali metal salt has a cation which is sodium, potassium or mixtures thereof, preferably sodium.
  • Suitable salts include sodium chloride, sodium sulfate, sodium carbonates, sodium phos ⁇ phates, potassium chloride, potassium sulfate and potassium phosphates, preferably the sulfates and in particular Na 2 S0 4 .
  • the present dispersions are cationic and hereby is meant that they contain at least one cationic dispersing agent.
  • the cationic dispersing agent, or stabilizer imparts a positive charge to the particles or droplets containing sizing agent which are dispersed in the aqueous phase.
  • the cationic dispersing agent may be any of those conventionally used in sizing dispersions or emulsions.
  • suitable cationic dispersing agents include cationic starch, polyethyleneimine, polyvinylpyridine, resins formed by reacting epichlorohydrin with dimethylamine and polyamidepolyamines, resins formed by reacting formaldehyde with urea and melamine, and the like, preferably cationic starch.
  • the cationic dispersing agent can be contained in the dispersions in amounts corresponding to those conventionally used, which depend on the sizing agents used, for example it can be present in an amount of from 0.2 to 150% by weight, based on the sizing agent, suitable from 1 to 50% by weight and preferably from 2 to 20% by weight.
  • the dispersions can also contain other additives, for example anionic surfactants such as sodium lignosulphonate, extenders such as urea and urea derivatives, preservative agents, and the like.
  • the alkali metal salt is contained in the dispersions in a stabilizing amount, which of course will vary depending on, among other things, the type of salt and sizing agent, the type and amount of dispersing agent used and the dry content of the dispersion.
  • the weight ratio of alkali metal salt to cationic dispersing agent is within the range of from 5:1 to 1:20, suitably from 2:1 to 1:10 and preferably from 1:1 to 1:5.
  • the content of alkali metal salt in the dispersions is at least 0.25% by weight, suitably at least 0.5% and preferably at least 1%.
  • the upper limit for the content of alkali metal salt may be 15% by weight, suitably 10% and preferably 5%.
  • the cationic dispersions according to the invention can also contain an aluminium compound, such as for example aluminium sulphate, aluminium chloride, polyaluminium compounds, e.g. polyaluminium chlorides, polyaluminium chlorides containing sulphate, polyaluminium sulphates, polyaluminium hydroxides, and the like.
  • an aluminium compound such as for example aluminium sulphate, aluminium chloride, polyaluminium compounds, e.g. polyaluminium chlorides, polyaluminium chlorides containing sulphate, polyaluminium sulphates, polyaluminium hydroxides, and the like.
  • aluminium compounds are described in WO 94/01619, which is hereby incorporated herein by reference. It was surprisingly found that aluminium-free inorganic alkali metal salts according to the invention imparted further stability to sizing dispersions containing aluminium salts.
  • the dispersions according to the invention can be pre ⁇ pared by mixing a pre-prepared cationic dispersion or emulsion of a sizing agent with a inorganic alkali metal salt or an aqueous solution thereof.
  • the dispersions can also be prepared by mixing the sizing agent with an aqueous solution of a cationic dispersing agent or emulsifier and an inorganic alkali metal salt or aqueous solution thereof followed by passing the mixture through a homogenizer.
  • the dispersions according to the invention can be used in conventional manner in the production of paper. They can be used both for surface sizing and internal or stock sizing in the production of paper, board and cardboard.
  • the present invention also relates to a process for the production of paper using aqueous cationic dispersions containing a sizing agent and an inorganic alkali metal salt, as defined above, as surface or stock sizing agents.
  • the amount of sizing agent either added to the stock or applied as a surface size, for example at the size press is from 0.005 to 5.0% by weight, based on the dry content of the stock, i.e fibres and optional filler, and preferably from 0.01 to 2.0% by weight, where the dosage is mainly dependent on the quality of the pulp or paper to be sized, the sizing agent used and the level of sizing desired.
  • drainage and/or retention aids such as drainage and/or retention aids, aluminum compounds, wet-strength resins, dyes, optical brightening agents, etc.
  • suitable drainage and/or retention aids include cationic polymers, bentonite in combi ⁇ nation with anionic, amphoteric and/or cationic polymers and silica based particles in combination with anionic, amphoteric and/or cationic polymers.
  • suitable aluminium compounds include alum, aluminates and polyaluminium compounds such as polyaluminium chlorides and sulphates.
  • Example 1 The invention is further illustrated in the following example, which, however, is not intended to limit the same. Parts and percentages are by weight, unless otherwise stated.
  • Example 1 Parts and percentages are by weight, unless otherwise stated.
  • Aqueous dispersions according to the invention were prepared by mixing Na 2 SO 4 * 10H 2 O with a pre-prepared cationic alkyl ketene dimer (AKD) dispersion.
  • the pre-prepared disper- sion contained by weight 16.0% of AKD, 2.0% of cationic starch as a dispersing agent and 3.5% of polyaluminium chloride.
  • the amounts of Na 2 S0 4 , based on dispersion, added to the disper ⁇ sions are shown below.
  • Example 2 Sodium chloride and sodium sulfate were added to a dispersion of the type used in Example 1. Stability of the dispersions was evaluated by measuring the viscosity at 20°C after admixing the components (0 days) and after storage at 50°C for 7 days. The viscosity measurements were made as in Example 1. The results are set forth below where the salt content is expressed as moles of salt per litre of dispersion. Table II S Saalltt S Saalltt ccoonntteenntt Viscosity (mPas) added (moles/1) 0 days 7 days
  • Sodium sulfate was added to a cationic rosin dispersion containing cationic starch as a dispersing agent.
  • the disper ⁇ sion so formed contained by weight 34% of rosin-based size, 1.5% of cationic starch, 0.6% of an anionic surfactant and 0.3% of sodium sulfate.
  • the dispersion had a viscosity of 154 mPas, measured as above, which increased to 228 mPas after storage for two weeks at 20°C. Without sodium sulfate addi ⁇ tion, a corresponding cationic rosin-based dispersion had separated after storage for two weeks.

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  • Paper (AREA)

Abstract

L'invention concerne une dispersion cationique aqueuse d'un agent de collage sélectionné parmi des agents de collage réagissant avec la cellulose, des agents de collage à base de résine et des mélanges de ces derniers, comprenant un sel d'un métal alcalin inorganique soluble dans l'eau. Cette dispersion est utilisée dans la production du papier et de carton dans laquelle la dispersion est ajoutée au papier ou appliquée comme encollage.
PCT/SE1996/000591 1995-05-12 1996-05-06 Dispersions de collage WO1996035841A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU57841/96A AU5784196A (en) 1995-05-12 1996-05-06 Sizing dispersions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9501765-3 1995-05-12
SE9501765A SE9501765D0 (sv) 1995-05-12 1995-05-12 Sizing dispersions

Publications (1)

Publication Number Publication Date
WO1996035841A1 true WO1996035841A1 (fr) 1996-11-14

Family

ID=20398284

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/000591 WO1996035841A1 (fr) 1995-05-12 1996-05-06 Dispersions de collage

Country Status (3)

Country Link
AU (1) AU5784196A (fr)
SE (1) SE9501765D0 (fr)
WO (1) WO1996035841A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998024972A1 (fr) * 1996-11-30 1998-06-11 Raisio Chemicals Uk Ltd. Emulsion de colophane contenant un derive d'amidon pour le collage du papier
WO1999023307A1 (fr) * 1997-11-05 1999-05-14 Hercules Incorporated Compositions et procedes de traitement a chaud de la pate ameliorant l'encollage
WO1999067464A1 (fr) * 1998-06-25 1999-12-29 Erplip S.A. Procede de fabrication de carton couche pour l'emballage de liquides
ES2153245A1 (es) * 1997-04-29 2001-02-16 Erlip S A Cola papelera.
US6207258B1 (en) 1997-07-31 2001-03-27 Hercules Incorporated Composition and method for improved ink jet printing performance
WO2002033172A1 (fr) * 2000-04-12 2002-04-25 Hercules Incorporated Composition de colle a papier
US6436181B1 (en) 1998-04-14 2002-08-20 Kemira Kemi Ab Sizing composition and a method of sizing
EP2071965A1 (fr) * 2007-12-20 2009-06-24 Reemtsma Cigarettenfabriken GmbH Article à fumer avec des caractéristiques d'extinction améliorées
WO2009157952A1 (fr) * 2008-06-27 2009-12-30 Hewlett-Packard Development Company, L.P. Composition de traitement de surface, article pouvant être imprimé par jet d'encre et procédé de réalisation correspondant
US8123907B2 (en) * 2005-10-14 2012-02-28 Hewlett-Packard Development Company, L.P. Composition and ink receiving system incorporating the composition
CN104120627A (zh) * 2014-07-15 2014-10-29 苏州恒康新材料有限公司 一种造纸用施胶剂及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873203A (en) * 1954-02-25 1959-02-10 American Cyanamid Co Liquid rosin sizes containing anti-stratifying agent
US3637407A (en) * 1964-02-05 1972-01-25 Blattmann & Co Composition and method for surface-sizing paper and the like
EP0327215A1 (fr) * 1988-01-18 1989-08-09 Hercules Incorporated Emulsions aqueuses stables de dimère cétène et d'argent hydrophobe non réactif

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873203A (en) * 1954-02-25 1959-02-10 American Cyanamid Co Liquid rosin sizes containing anti-stratifying agent
US3637407A (en) * 1964-02-05 1972-01-25 Blattmann & Co Composition and method for surface-sizing paper and the like
EP0327215A1 (fr) * 1988-01-18 1989-08-09 Hercules Incorporated Emulsions aqueuses stables de dimère cétène et d'argent hydrophobe non réactif

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998024972A1 (fr) * 1996-11-30 1998-06-11 Raisio Chemicals Uk Ltd. Emulsion de colophane contenant un derive d'amidon pour le collage du papier
ES2153245A1 (es) * 1997-04-29 2001-02-16 Erlip S A Cola papelera.
US6207258B1 (en) 1997-07-31 2001-03-27 Hercules Incorporated Composition and method for improved ink jet printing performance
WO1999023307A1 (fr) * 1997-11-05 1999-05-14 Hercules Incorporated Compositions et procedes de traitement a chaud de la pate ameliorant l'encollage
US6436181B1 (en) 1998-04-14 2002-08-20 Kemira Kemi Ab Sizing composition and a method of sizing
US6669816B1 (en) 1998-06-25 2003-12-30 Erplip S.A. Process for the manufacture of coated liquid packaging board
ES2141062A1 (es) * 1998-06-25 2000-03-01 Erplip S A Procedimiento para la fabricacion de carton estucado para envasado de liquidos.
WO1999067464A1 (fr) * 1998-06-25 1999-12-29 Erplip S.A. Procede de fabrication de carton couche pour l'emballage de liquides
WO2002033172A1 (fr) * 2000-04-12 2002-04-25 Hercules Incorporated Composition de colle a papier
EP1659220A3 (fr) * 2000-04-12 2009-04-08 Hercules Incorporated Composition de collage de papier
US8123907B2 (en) * 2005-10-14 2012-02-28 Hewlett-Packard Development Company, L.P. Composition and ink receiving system incorporating the composition
EP2071965A1 (fr) * 2007-12-20 2009-06-24 Reemtsma Cigarettenfabriken GmbH Article à fumer avec des caractéristiques d'extinction améliorées
WO2009080136A1 (fr) * 2007-12-20 2009-07-02 Reemtsma Cigarettenfabriken Gmbh Article à fumer présentant des caractéristiques d'extinction améliorées
WO2009157952A1 (fr) * 2008-06-27 2009-12-30 Hewlett-Packard Development Company, L.P. Composition de traitement de surface, article pouvant être imprimé par jet d'encre et procédé de réalisation correspondant
US9034953B2 (en) 2008-06-27 2015-05-19 Hewlett-Packard Development Company, L.P. Surface treatment composition, inkjet printable article and method of making the same
CN104120627A (zh) * 2014-07-15 2014-10-29 苏州恒康新材料有限公司 一种造纸用施胶剂及其制备方法

Also Published As

Publication number Publication date
SE9501765D0 (sv) 1995-05-12
AU5784196A (en) 1996-11-29

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