EP0293119B1 - Compositions de collage pour papier - Google Patents

Compositions de collage pour papier Download PDF

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Publication number
EP0293119B1
EP0293119B1 EP88304405A EP88304405A EP0293119B1 EP 0293119 B1 EP0293119 B1 EP 0293119B1 EP 88304405 A EP88304405 A EP 88304405A EP 88304405 A EP88304405 A EP 88304405A EP 0293119 B1 EP0293119 B1 EP 0293119B1
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Prior art keywords
rosin
composition according
paper
composition
value
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EP88304405A
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German (de)
English (en)
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EP0293119A1 (fr
Inventor
William Robert Bussell
Nicholas Stuart Morgan
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Eka Nobel Landskrona AB
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Eka Nobel Landskrona AB
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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
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • 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
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • D21H17/15—Polycarboxylic acids, e.g. maleic acid
    • D21H17/16—Addition products thereof with hydrocarbons
    • 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
    • D21H17/62—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
    • 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

  • This invention relates to paper sizing compositions, methods for making such compositions, processes for sizing paper products using these compositions and paper products which have been sized with these compositions.
  • Paper is used, for convenience, to mean all forms of paper, paperboard and related products whose manufacture involves the employment of a sizing agent upon cellulosic or other fibres.
  • Paper sizing agents are usually employed either by being added to the cellulosic or other fibre stock from which a web is later made or by being applied to the surface after the web has been formed. Rosin-based sizing agents depend for their sizing effect upon the formation of electrostatic bonds between the sizing agent and the cellulosic or other fibres of the paper stock or web.
  • paper sizing agents are usually in the form of stable dispersions and they cause sizing by depositing rosin-based or other materials on to the fibre stock or the paper web, so that sizing essentially involves breaking the stable dispersion. This can occur on contact between the dispersion and the stock or web, where the latter is effective to destroy the stability of the dispersion.
  • adequate sizing does not arise from mere contact of the paper sizing agent with the paper stock or web. Instead, it requires the presence of a co-reactant to break the dispersion and so cause the desired deposition of sizing components on the fibres of the paper stock or web.
  • co-reactants are aluminium compounds and, especially, aluminium sulphate, papermaker's alum and the polyaluminium chlorides.
  • dispersions comprising a rosin component and an amine salt of a rosin acid, which are stable and which impart excellent sizing properties to paper, can be prepared by the incorporation of at least one aluminium compound into a composition of a rosin size and an amine salt of a rosin acid.
  • a paper sizing composition in the form of a preformed stable aqueous dispersion for subsequent use in a paper-sizing process, characterised in that the composition has the ability to size paper stock, sheet or web to an effective extent when brought into contact with the stock, sheet or web during the sizing process and comprises the material obtainable by addition of at least one aluminium compound to an aqueous dispersion comprising rosin size and an amine salt of a rosin acid.
  • the invention also provides a method of manufacture of a paper-sizing composition, the composition being characterised in that it is in the form of a stable aqueous dispersion for subsequent use in a paper-sizing process and has the ability to size paper stock, sheet or web to an effective extent when brought into contact with the stock, sheet or web during the sizing process, the method comprising first forming an aqueous dispersion comprising rosin size and an amine salt of a rosin acid and then introducing at least one aluminium compound into the dispersion; and a process of manufacture of a sized paper product, wherein a paper-sizing composition is added to fibre stock which is then made into paper or is applied as a surface size to a prepared paper web or sheet, the composition being characterised in that it comprises the material obtainable by addition of at least one aluminium compound to an aqueous dispersion comprising rosing size and an amine salt of a rosin acid.
  • Rosin is a solid resinous material which occurs naturally in the oleoresin of pine trees. It is obtained from one of three main sources, the oleoresin exudate of living pine trees, the oleoresin contained in the aged stumps of pine trees and from the tall oil produced as a by-product in the kraft paper industry. Rosin is a complex mixture of cyclic terpene carboxylic acids together with a small amount of non-acidic components. A major constituent of rosin is the tricyclic doubly unsaturated mono-carboxylic acid, abietic acid.
  • rosin may therefore be reacted with dienophilic carboxylic acids such as maleic acid, maleic anhydride or fumaric acid to form a tetracyclic polycarboxylic acid. This reaction with these dienophiles is commonly termed fortification.
  • the product of such reaction between rosin and a dienophile is commonly termed a fortified rosin. Fortified rosin dispersions are used as sizing compositions in the paper sizing industry and the novel dispersions of this invention may comprise either rosin or fortified rosin or a mixture of the two.
  • the rosin may have been treated with formaldehyde in order to enhance their stability.
  • Esterified or disproportionated rosins may also be used in the compositions of this invention.
  • Esterified rosins are rosins which have been reacted with an alcohol which is preferably a polyol such as glycerol.
  • Disproportionated rosins are rosins which have been treated by a catalytic process in order to improve their stability to oxidation. Mixtures of any of these types of rosin may be used in the compositions of this invention.
  • the preferred rosin for use in the composition of this invention are fortified rosins.
  • the preferred fortified rosins are those wherein the rosin has been reacted with from 5 to 50% of its own weight and generally about 10% by weight of a dienophile.
  • Such rosins comprise a mixture of fortified and unfortified rosin. The two are normally used in combination in view of the fortification which would render the use of a product comprising fortified rosin only prohibitively expensive.
  • the most preferred type of rosin is fortified tall oil rosin.
  • the amine salt of the rosin acid may be produced by the neutralisation of any of the rosin or rosin derivatives described above. It may be prepared separately and added to the rosin dispersion, but more usually it will be produced in situ by the addition of sufficient amine to bring about the partial neturalisation of the acid content of the rosin.
  • the amine salt is the salt of the rosin acid or acids present in the rosin component of the dispersions of this invention.
  • the salt of the rosin acid may be produced by neutralising the acid either prior to or after its conversion to a rosin derivative.
  • the neutralisation may be carried out using an amine having the formula: wherein substituents R1, R2 and R3, which may be the same or different, represent alkyl or alkenyl groups comprising from 1 to 4 carbon atoms or a hydrogen atom, with the proviso that at least one of the substituent is not a hydrogen atom.
  • substituents R1, R2 and R3 represent alkyl groups and, most preferably, all three of these substituents represent alkyl groups.
  • R1, R2 and R3 which represent alkyl groups may represent branched or straight chain saturated alkyl groups such as methyl, ethyl, or n- or iso- propyl, n-, sec- or tert- butyl groups or they may represent alkyl groups which contain one or more substituent groups such as hydroxyl, alkoxy, carboxy or amino groups such as 2, hydroxyethane groups or hydroxypropane groups.
  • Particular amines which are useful in the composition of this invention include monomethylamine, dimethylamine, trimethylamine, monoethylamine, diethylamine, triethylamine, monopropylamine, dipropylamine, tripropylamine, monoethanolamine, diethanolamine and triethanolamine.
  • the most preferred amine is triethanolamine.
  • the amount of amine which is added to the rosin will be that which is required in order to produce the desired amount of amine salt.
  • the amount of amine which is added will normally be sufficient to neutralise from 1 to 20%, preferably from 3 to 6% of the acid groups present in the rosin.
  • the amount of amine salt will normally be such that the mixture comprises the same proportions of neutralised and nonneutralised rosin acids.
  • the co-reactant component of the dispersions of this invention may be of any of the aluminium salts known to be useful in the sizing of paper such as aluminium sulphate, paper maker's alum Al2(SO4)3.18H2O, polyaluminium chlorides such as those having the formula Al(OH) x (SO4) y Cl z wherein x has a value in the range 1.35 to 1.65, y has a value of from 0.08 to 0.15 and z has a value of 3-(x+y), or those having the formula: Al n (OH) m Cl 3n-m wherein n has a value of from 1 to 20, m is less than 3n and is at least 2 and preferably at least 5.
  • a particular type of polyaluminium chloride which is useful in the dispersions of this invention are those described in European Patent Application 145686 and those produced by the processes described in European Patent Application 181847.
  • Another type of useful polyaluminium chloride are the aluminium chlorohydrates having the formula: Al x (OH) y Cl z wherein x has a value of from 1 to 4, preferably a value of 1, y and z, which may be the same or different, have values of from 0.5 to 2.5 and the ratio y:z has a value in the range 5:1 to 1:5.
  • the preferred co-reactant for use in the compositions of the present invention are the aluminium chlorohydrates.
  • the dispersions of the present invention may be prepared by simple admixture of the components thereof or by using any of the conventional techniques of the art.
  • the dispersions may be prepared using the inversion technique.
  • the rosin preferably a fortified rosin, optionally treated with para formaldehyde in the presence of a para toluene sulphonic acid to inhibit crystallisation, and optionally one which has been at least partially neutralised with an amine, may be melted and a stabilising agent or mixture of stabilising agents may then be added as a concentrated (e.g. 50% by weight solids) aqueous solution. Sufficient water is stirred in to form a creamy water-in-oil emulsion (e.g. 20 to 40% based on the weight of rosin).
  • a stabilising agent or mixture of stabilising agents may then be added as a concentrated (e.g. 50% by weight solids) aqueous solution.
  • Sufficient water is stirred in to form a creamy water-in-oil emulsion (e.g. 20 to 40% based on the weight of rosin).
  • the emulsion On dilution with water the emulsion inverts to provide a stable oil-in-water emulsion, typically having solids content of from 20% by weight up to the maximum achievable oil-in-water concentration (often about 80% by weight solids) and preferably from 30% to 40% by weight solids.
  • the rosin content of the emulsion or dispersion usually contains at least 90% of unsaponified rosin acids.
  • the emulsions may then be blended with an aqueous solution of one or more co-reactants.
  • the emulsions may be used for sizing paper, including alumed paper.
  • the rosin dispersions may be formulated so as to comprise other ingredients known in the art.
  • the dispersions may comprise one or more stabilisers.
  • a variety of surface active agents or emulsifiers may be used to stabilise the dispersions either in admixture with one another or with other known emulsifying agents or in conjunction with other known auxiliary stabilising agents.
  • a preferred class of auxiliary stabilising agents are the protective colloids such as casein and compositions comprising rosin, an amine salt of a rosin acid, a co-reactant and a protective colloid form a preferred aspect of this invention.
  • Other compounds which may be used to stabilise the dispersions include starch derivatives, cellulose derivatives such as hydroxyethyl cellulose, or polymeric materials such as polyvinyl pyrolidone.
  • Anionic, non-ionic, amphoteric, or cationic surfactants may be utilised as stabilisers in the dispersions of this invention.
  • anionic or non-ionic surfactants may be utilised as stabilisers in the dispersions of this invention.
  • anionic or non-ionic surfactants may be utilised.
  • compositions of this invention examples include:
  • Sulphosuccinate half esters of fortified rosin having the formula:- H (3-m) .
  • R represents an alkyl group comprising from 4 to 18 carbon atoms and R' represents an alkyl or alkenyl group comprising from 4 to 18 carbon atoms and n is an integer having a value of from 4 to 25 including all those described in United States Patent 4199369.
  • Sulphosuccinate salts of ethylene oxide condensates having the general formula:- wherein R represents an alkyl group comprising from 4 to 18 carbon atoms and n is an integer having a value of from 4 to 25; including all those compounds described in United States Patent 4203776.
  • Organic phosphate esters having the general formulae:- wherein R represents an alkyl an alkyl phenol, alkenyl or alkaryl group comprising from 5 to 20 carbon atoms, n had a value of from 5 to 20 and X represents a monovalent cation or hydrogen.
  • Cationic resin dispersant systems may also be used to stabilise the rosin dispersion of this invention.
  • suitable materials include water soluable polyaminopolyamide epichlorohydrin resins, water soluble alkylene polyamine epichlorohydrin resins or poly(diallyl-amine) epichlorohydrin resins.
  • a further type of compound which can usefully be incorporated into the dispersions of this invention is that comprising ammonia or an ammonium salt or a precursor thereof such as urea, a chemically modified urea or a precursor thereof.
  • ammonia or an ammonium salt or a precursor thereof such as urea, a chemically modified urea or a precursor thereof.
  • compounds which are useful in the compositions of this invention include urea, thiourea, biuret.
  • melamine, water-soluble urea-formaldehyde and melamine formaldehyde resins and derivates or urea especially those reaction products obtained by reacting urea with an acid selected from the group comprising sulphamic acid, phosphoric acid, trichloroacetic acid, nitric acid, sulphuric acid, hydrochloric acid, stearic acid and acetic acid as described in United States Patent 4022634 and 4093779, the reaction products of urea with a Lewis acid such a p-toluene sulphonic acid as described in United States Patent 4141750, the reaction products of urea and sulphamic acid such as are described in United States Patent 4025354 and the products obtained by the reaction of urea and formic acid as described in United States Patent 4437894.
  • an acid selected from the group comprising sulphamic acid, phosphoric acid, trichloroacetic acid, nitric acid, sulphuric
  • the preferred sources of ammonia or ammonium salt for use in the compositions of the present invention are the products obtained by the reaction of urea with sulphamic acid including all those products which are described in United States Patent 4025354.
  • These modified ureas may be produced by combining urea with sulphamic acid and water.
  • the parts by weight of water equal the parts by weight of urea plus sulphamic acid, although the urea may be treated with the sulfamic acid with more water or with little or no water.
  • the urea-sulphamic acid solution may be heated to a temperature which causes a change in the pH for example to rise in the pH to at least about 7.5.
  • the temperature affecting the pH may be higher.
  • a temperature of about 212° and 235°F, preferably about 215° to 230°F will increase the pH up to at least about 7.9.
  • the solution boils at the temperature which changes the pH and heating should be continued until after boiling has stopped to effect an irreversible pH change.
  • the pH range is an important measurement of reaction completion, a more important consideration is the acidity of the first stage product measured as parts of water (ppm).
  • the desired minimum acidity is at least 1,000 ppm, with a preferred minimum 4,300.
  • the actual amount of sulphamic acid is probably at least about 0.1% by weight of urea, with preferred amounts ranging from about 0.2% to about 8.0%.
  • the maximum amount of sulphamic acid needed would be 15 or at most 20% by weight of urea to achieve the desired results. It has been found that 5% sulphamic acid produces an acidity of about 86,000 ppm with a pH of between 7.9 and 8.3 when processed in a 50% water, 50% urea plus sulphamic acid solution. Accordingly, sulphamic acid at 0 25% by weight of urea produces a first stage product with an acidity of 4,300 ppm. As indicated, the amount of sulphamic acid added to the solution is not as important as its resulting acidity in defining the first stage product of the novel size composition of this embodiment.
  • the proportion of ammonia or ammonia salt (or in the preferred embodiment the precursor thereof) to rosin or fortified rosin in the dispersions of this invention may be in the range 5 to 60% and preferably 10 to 35% by weight.
  • a further class of ingredients which may usefully be incorporated into the compositions of this invention are the synthetic sizes such as alkenyl succinic anhydrides and especially the alkyl ketene dimers. These reagents may be used as well as or as a partial replacement for the rosin sizes. In general the ratio of the weight of the rosin components to the synthetic size components will be in the range 2:1 to 5:1.
  • novel dispersions will normally be formulated as relatively concentrated compositions which are diluted prior to their use in the sizing process.
  • the dispersions will comprise from 25 to 60% and more usually from 30 to 45% by weight of the combined weight of the rosin, amine salt and co-reactant.
  • compositions of the invention my be employed as an internal size or as a surface size. Their use as an internal size forms a preferred aspect of the present invention.
  • Internal sizing processes comprise the dilution of the concentrated composition with water and the addition of the diluted composition to a pulp suspension.
  • the amount of size compositon employed is generally in the range 0.1 to 5.0% by weight of solids based on the weight of fibres in the pulp slurry.
  • the emulsions may be used for sizing paper, including alumed paper.
  • the emulsions may contain biocides such as bactericides, slimicides and/or fungicides or diluents such as wax.
  • the fortified rosin was loaded into a one tonnne pot using an agitator speed of 300 rpm, water and 10 kg of triethanolamine was added both to cool and partially neutralise the rosin product.
  • Example 2 800 kg of the 30% rosin emulsion produced in Example 2 was placed into a 3 tonne production unit. To this was added 400 kg of a 30% urea solution. The stirrer was switched on at 3,000 rpm (Greaves mixer). To this was added quickly (1-5 secs) 160 kg of an aluminium chlorohydrate solution. An additional 640 kg of the aluminium chlorohydrate solution was added over a period of one minute. The stirrer was switched off and the product filtered through a 40 mesh filter basket.
  • a dispersion was produced using the ingredients and procedures described in Example 4, except a 30% Lewis acid reacted urea was substituted for the 30% urea solution.
  • a dispersion was produced using the ingredients and procedures described in Example 4, with the exception that no urea was added.
  • a dispersion was produced using the ingredients and procedures described in Example 4, except that a polyaluminium chloride was substituted for the aluminium chlorohydrate.
  • a dispersion was produced using the ingredients and procedures described in Example 4, except that aluminium sulphate (paper maker's alum) was substituted for the aluminium chlorohydrate.
  • a dispersion was produced using the ingredients and procedures described in Example 4, except that 50 mole % of the aluminium chlorohydrate was substituted with a polyaluminium chloride.

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Claims (31)

  1. Composition d'encollage de papier sous la forme d'une dispersion aqueuse stable formée préalablement, pour l'utilisation subséquente dans un procédé d'encollage de papier, caractérisée en ce que la composition présente l'aptitude à encoller la pâte à papier, la feuille ou le lai de papier dans une mesure efficace lorsqu'elle est mise en contact avec la pâte à papier, la feuille ou le lai de papier pendant l'opération d'encollage, et en ce qu'elle comprend la substance qui peut être obtenue par addition d'au moins un composé d'aluminium à une dispersion aqueuse comprenant un agent d'encollage à base de rosine et un sel d'amine d'un acide de rosine.
  2. Composition selon la revendication 1, dans laquelle le sel d'amine d'un acide de rosine est le produit de neutralisation avec une amine d'un composant choisi parmi la rosine, la rosine renforcée, la rosine estérifiée, la rosine déproportionnée et leurs mélanges.
  3. Composition selon la revendication 1 ou 2, dans laquelle le sel d'amine d'un acide de rosine est ajouté à une dispersion de rosine comprenant le composant d'encollage de rosine de la composition.
  4. Composition selon la revendication 1 ou 2, dans laquelle le sel d'amine d'un acide de rosine est formé par la neutralisation partielle de la teneur en acide du composant agent d'encollage à base de rosine de la composition.
  5. Composition selon la revendication 2, dans laquelle le composant agent d'encollage à base de rosine est un dérivé de rosine et le sel d'amine d'un acide de rosine est obtenu par neutralisation de l'acide de rosine correspondant avant ou après sa transformation en un dérivé de rosine.
  6. Composition selon l'une quelconque des revendications précédentes, dans laquelle le sel d'amine d'un acide de rosine est formé par neutralisation à l'aide d'une amine répondant à la formule :
    Figure imgb0013
     dans laquelle R₁, R₂ et R₃ sont identiques ou différents et représentent chacun un groupe alkyle, alkyle substitué, alcényle ou alcényle substitué, comprenant 1 à 4 atomes de carbone, ou un atome d'hydrogène, étant entendu qu'au moins l'un de R₁, R₂ et R₃ ne représente pas un atome d'hydrogène.
  7. Composition selon la revendication 6, dans laquelle au moins l'un de R₁, R₂ et R₃ est substitué.
  8. Composition selon la revendication 7, dans laquelle le substituant est un groupe hydroxyle, alcoxy, carboxy ou amino.
  9. Composition selon la revendication 8, dans laquelle R₁, R₂ ou R₃ représente un groupe 2-hydroxyéthyle ou 2-hydroxypropyle.
  10. Composition selon la revendication 6, dans laquelle l'amine est la monométhylamine, la diméthylamine, la triméthylamine, la monoéthylamine, la diéthylamine, la triéthylamine, la monopropylamine, la dipropylamine, la tripropylamine, la monoéthanolamine ou la diéthanolamine.
  11. Composition selon la revendication 6, dans laquelle l'amine est la triéthanolamine.
  12. Composition selon l'une quelconque des revendications précédentes, dans laquelle le sel d'amine est présent en une quantité représentant 1 % à 20 % de la neutralisation des groupes acides présents dans le composant à base de rosine.
  13. Composition selon l'une quelconque des revendications précédentes, dans laquelle le composé d'aluminium est un sel d'aluminium.
  14. Composition selon la revendication 13, dans laquelle le sel d'aluminium est choisi parmi le sulfate d'aluminium, l'alun des papetiers et les poly(chlorure d'aluminium) répondant à la formule :



            Al(OH)x(SO₄)yClz



    dans laquelle x a une valeur comprise dans la gamme de 1,35 à 1,65, y a une valeur comprise dans la gamme 0,08 à 0,15 et z vaut 3-(x+y), ou ceux répondant à la formule :



            Aln(OH)mCl3n-m



    dans laquelle n vaut de 1 à 20, m a une valeur inférieure à 3n et
    Figure imgb0014
     vaut au moins 2.
  15. Composition selon la revendication 13, dans laquelle le sel d'aluminium est un chlorhydrate d'aluminium répondant à la formule :



            Alx(OH)yClz



    dans laquelle x vaut de 1 à 4, de préférence x vaut 1, y et z, qui peuvent être identiques ou différents, valent de 0,5 à 2,5, et le rapport y:z est dans la gamme de 5:1 à 1:5.
  16. Composition selon l'une quelconque des revendications précédentes, qui a été préparée par une technique d'inversion.
  17. Composition selon l'une quelconque des revendications précédentes, dans laquelle au moins un stabilisant est prévu, éventuellement conjointement avec au moins un agent stabilisant auxiliaire.
  18. Composition selon la revendication 17, dans laquelle le stabilisant est choisi parmi les colloïdes protecteurs, les dérivés d'amidon, les dérivés cellulosiques, les substances polymères et les tensioactifs anioniques, non ioniques, cationiques et amphotères, les résines polyaminopolyamide/épichlorhydrine hydrosolubles, les résines alkylène-polyamine/épichlorhydrine hydrosolubles et les résines poly(diallylamine)/épichlorhydrine.
  19. Composition selon l'une quelconque des revendications précédentes, dans laquelle de l'ammoniac, un sel d'ammonium ou un de ses précurseurs est incorporé dans la composition.
  20. Composition selon l'une quelconque des revendications précédentes, dans laquelle au moins un agent d'encollage de synthèse anhydride alcénylsuccinique ou dimère d'alkylcétène est incorporé dans la composition.
  21. Composition selon l'une quelconque des revendications précédentes, qui comprend 25 % à 60 % en poids du composé à base de résine, du co-réactant et du sel d'amine combinés.
  22. Procédé de fabrication d'une composition d'agent d'encollage de papier, la composition étant caractérisée en ce qu'elle est sous la forme d'une dispersion aqueuse stable pour l'utilisation subséquente dans un procédé d'encollage de papier, et présente l'aptitude à encoller la pâte à papier, la feuille ou le lai de papier dans une mesure efficace lorsqu'elle est mise en contact avec la pâte à papier, la feuille ou le lai de papier pendant le procédé d'encollage, le procédé comprenant d'abord la formation d'une dispersion aqueuse comprenant l'agent d'encollage à base de rosine et un sel d'amine d'un acide de rosine, et ensuite, l'introduction dans la dispersion d'au moins un composé d'aluminium.
  23. Procédé selon la revendication 22, dans lequel le sel d'amine est formé par addition d'une amine libre à l'agent d'encollage à base de rosine pour effectuer la neutralisation partielle du composant acide de rosine de l'agent d'encollage à base de rosine.
  24. Procédé selon la revendication 22, dans lequel le sel d'amine est formé séparément et ajouté subséquemment tel quel à l'agent d'encollage à base de rosine.
  25. Procédé selon la revendication 22, 23 ou 24, dans lequel le sel d'amine de l'acide de rosine est le sel de l'acide de rosine et de monométhylamine, diméthylamine, triméthylamine, monoéthylamine, diéthylamine, triéthylamine, monopropylamine, dipropylamine, tripropylamine ou diéthanolamine.
  26. Procédé selon la revendication 22, 23 ou 24, dans lequel le sel d'amine de l'acide de rosine est le sel d'acide de rosine et de triéthanolamine.
  27. Procédé selon la revendication 22, dans lequel le composé d'aluminium est un sel d'aluminium choisi parmi le sulfate d'aluminium, l'alun des fabricants de papier, les poly(chlorure d'aluminium) répondant à la formule :



            Al(OH)x(SO₄)yClz



    dans laquelle x a une valeur comprise dans la gamme de 1,35 à 1,65, y a une valeur comprise dans la gamme de 0,08 à 0,15 et z vaut 3-(x+y), ou ceux répondant à la formule :



            Aln(OH)mCl3n-m



    dans laquelle n vaut de 1 à 20, m a une valeur inférieure à 3n et
    Figure imgb0015
     vaut au moins 2, et un chlorhydrate d'aluminium répondant à la formule :



            Alx(OH)yClz



    dans laquelle x vaut de 1 à 4, de préférence 1, y et z, qui peuvent être identiques ou différents, valent de 0,5 à 2,5, et le rapport y:z présente une valeur dans la gamme de 5:1 à 1:5.
  28. Procédé selon l'une quelconque des revendications 22 à 27, dans lequel une émulsion eau-dans-huile comprenant le composant de rosine et au moins un stabilisant est préparé, et est ensuite soumise à une technique d'inversion de façon à former la composition voulue sous la forme d'une émulsion huile-dans-eau, qui est ensuite mélangée avec au moins un composé d'aluminium.
  29. Procédé de fabrication d'un produit papetier encollé, dans lequel une composition d'encollage de papier est ajoutée à une pâte à papier qui est ensuite transformée en papier, ou est appliquée comme agent d'encollage de surface sur une feuille ou un lai de papier préparé, la composition étant caractérisée en ce qu'elle comprend la substance qui peut être obtenue par addition d'au moins un composé d'aluminium à une dispersion aqueuse comprenant un agent d'encollage à base de rosine et un sel d'amine d'un acide de rosine.
  30. Procédé selon la revendication 29, dans lequel la composition est utilisée en une quantité comprise entre 0,1 % et 5,0 % en poids de substances solides, par rapport au poids des fibres contenus dans la pâte utilisée pour fabriquer le produit papetier.
  31. Procédé selon la revendication 29 ou 30, dans lequel la composition d'encollage du papier est une composition selon l'une quelconque des revendications 1 à 21.
EP88304405A 1987-05-26 1988-05-16 Compositions de collage pour papier Expired - Lifetime EP0293119B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88304405T ATE79657T1 (de) 1987-05-26 1988-05-16 Zusammensetzungen zum leimen von papier.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878712370A GB8712370D0 (en) 1987-05-26 1987-05-26 Paper sizing compositions
GB8712370 1987-05-26

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EP0293119A1 EP0293119A1 (fr) 1988-11-30
EP0293119B1 true EP0293119B1 (fr) 1992-08-19

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EP (1) EP0293119B1 (fr)
JP (1) JP2641253B2 (fr)
AT (1) ATE79657T1 (fr)
AU (1) AU615444B2 (fr)
BR (1) BR8802569A (fr)
CA (1) CA1340339C (fr)
DE (1) DE3873826T2 (fr)
ES (1) ES2051845T3 (fr)
FI (1) FI94069C (fr)
GB (1) GB8712370D0 (fr)
NZ (1) NZ224724A (fr)
PT (1) PT87589B (fr)
ZA (1) ZA883650B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8806432D0 (en) * 1988-03-18 1988-04-20 Albright & Wilson Paper sizing methods & compositions
SE502545C2 (sv) * 1992-07-07 1995-11-13 Eka Nobel Ab Vattenhaltiga kompositioner för limning av papper samt förfarande för framställning av papper
JPH07189175A (ja) * 1993-12-27 1995-07-25 Nippon P M C Kk 紙用サイズ剤及びサイジング方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2138325A (en) * 1936-03-26 1938-11-29 Walter A Nivling Process of making neutral sized paper
NL94392C (fr) * 1956-12-19
US3817768A (en) * 1970-09-08 1974-06-18 Hercules Inc Method of preparing aqueous dispersions of fortified rosin.
US4025354A (en) * 1973-05-08 1977-05-24 Plasmine Corporation Urea containing sizing compositions
DE2916379A1 (de) * 1979-04-23 1980-11-13 Schultz & Nauth Collodin Kleb Invertierter papierleim und verfahren zu seiner herstellung
US4522686A (en) * 1981-09-15 1985-06-11 Hercules Incorporated Aqueous sizing compositions
SE8405260L (sv) * 1984-10-22 1986-04-23 Eka Ab Hydrofoberingsmedel for organiska fibrer, serskilt cellulosafibrer, sett att framstella detta medel samt anvendningen av medlet for meldhydrofobering

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ATE79657T1 (de) 1992-09-15
FI94069B (fi) 1995-03-31
CA1340339C (fr) 1999-01-26
ES2051845T3 (es) 1994-07-01
AU615444B2 (en) 1991-10-03
AU1661188A (en) 1988-12-01
GB8712370D0 (en) 1987-07-01
ZA883650B (en) 1989-07-26
BR8802569A (pt) 1988-12-20
JPH01162896A (ja) 1989-06-27
FI882487A (fi) 1988-11-27
JP2641253B2 (ja) 1997-08-13
NZ224724A (en) 1989-10-27
PT87589A (pt) 1989-05-31
FI94069C (fi) 1995-07-10
DE3873826T2 (de) 1993-02-04
DE3873826D1 (de) 1992-09-24
FI882487A0 (fi) 1988-05-26
EP0293119A1 (fr) 1988-11-30
PT87589B (pt) 1992-09-30

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