EP0285486B2 - Process for producing packaging paper and board - Google Patents
Process for producing packaging paper and board Download PDFInfo
- Publication number
- EP0285486B2 EP0285486B2 EP88400617A EP88400617A EP0285486B2 EP 0285486 B2 EP0285486 B2 EP 0285486B2 EP 88400617 A EP88400617 A EP 88400617A EP 88400617 A EP88400617 A EP 88400617A EP 0285486 B2 EP0285486 B2 EP 0285486B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- parts
- added
- process according
- cellulose fibres
- per
- 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.)
- Expired - Lifetime
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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
- 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
-
- 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
- D21H17/20—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
- 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 process for manufacturing paper and more particularly packaging paper and cardboard.
- the raw paper pulp consisting essentially of cellulose fibers is put into the form of a dilute aqueous suspension which is brought into the headbox of the paper machine from where it is distributed on a filter cloth on which the sheet is formed. of paper. This sheet is then wrung and dried.
- the qualities and properties of the paper obtained are determined in particular by the operating conditions of the paper machine, the raw pulp, the various additives that are added to the suspension before the sheet is formed and also the products that are coated. on the sheet of paper after the filter cloth.
- the present invention relates more particularly to the products which are added before the sheet is formed.
- Cellulose fibers come from raw pulp but often from recycled paper or cardboard, sometimes mixed with raw pulp.
- British patent GB 2,015,614 describes a process for manufacturing wrapping paper and cardboard grooves in which cationic starch and a basic aluminum polychlorosulfate are added to the fiber suspension before the headbox. , or aluminum sulfate.
- the amount of cationic starch does not exceed 0.4% of the weight of cellulose fibers. It is known that cationic starch contributes to the mechanical resistance of the paper and it would be useful to be able to put much more than 0.4% in the suspension and above all to retain this starch in the sheet formed.
- Starch is very hydrophilic and if we exceed an amount of 0.5% we can no longer form the sheet of paper on the filter cloth except by greatly reducing the productivity of the paper machine. According to the present invention, a new process has been found which makes it possible to use amounts of starch greater than 0.5% in the headbox of the paper machine.
- the suspension containing the cellulose fibers can be raw or bleached pulp, or a mixture of raw pulp and bleached pulp. Very often we add used paper and cardboard to the previous mixture.
- Cationic starch is a mixture of one or more products marketed under the generic name of cationic starch. These products are for example those described in KIRK OTHMER, 3rd edition, Vol. 21 page 503. The amount is advantageously between 0.5 and 5 parts per 100 parts of cellulose fibers, and preferably between 0.7 and 2.
- Cellulose fibers can also be added to the suspension before the sheet is formed, and in addition to products a and b , other products such as dyes.
- the cationic starch it is possible to add, in addition to the cationic starch, one or more products chosen from polyacrylamides, polyethyleneimines, carboxymethylcellulose, urea-formaldehyde resins, melamine-formaldehyde resins, resins aminopolyamide-epichlorohydrin, polyamide-epichlorohydrin resins.
- these products are used in addition to the cationic starch and in the same quantities.
- any bonding agent is suitable, it is advantageous to use rosin or a mixture of one or more products chosen from dimeric ketene alkyls and their derivatives, fluorinated phosphates, fatty chain carboxylic acid anhydrides, certain polyurethanes, styrene / maleic anhydride copolymers.
- dimeric ketene alkyls and anhydrides of carboxylic acids It is preferred to use dimeric ketene alkyls and anhydrides of carboxylic acids.
- the quantity to be used depends on the desired properties of the paper or the cardboard.
- the amount is less than 10 parts per 100 parts of cellulose fibers and preferably between 0.1 and 2 parts.
- the sizing agent is added before the poly aluminum chloride.
- Another advantage of the invention in addition to the good mechanical properties obtained, is a large reduction in the matter in suspension in the water collected under the filter cloth during the formation of the sheet.
- Another advantage of the invention is greater productivity of the paper machine and better internal cohesion. All these advantages will appear in the examples. The following examples illustrate the invention.
- Example 2 The procedure is as in Example 1, but in addition, before the headbox, an aluminum polychloride is added in proportion of 0.15 parts expressed as Al 2 O 3 per 100 parts of cellulose fibers.
- Example 2 The procedure is as in Example 2 but by adding 0.16 part of polychloride of aluminum counted in Example 2 per 100 parts of cellulose fibers, one obtains: Machine speed 220 m / min Total retention 85% Mullen 2.96 pH (in headbox) 7.2
Landscapes
- Paper (AREA)
- Making Paper Articles (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Packaging Of Special Articles (AREA)
- Cartons (AREA)
Abstract
Description
La présente invention concerne un procédé de fabrication du papier et plus particulièrement le papier d'emballage et le carton.The present invention relates to a process for manufacturing paper and more particularly packaging paper and cardboard.
La pâte à papier brute constituée essentiellement de fibres de cellulose est mise sous forme d'une suspension aqueuse diluée qui est amenée dans la caisse de tête de la machine à papier d'où elle est distribuée sur une toile filtrante sur laquelle se forme la feuille de papier. Cette feuille est ensuite essorée puis séchée. Les qualités et les propriétés du papier obtenues sont déterminées notamment par les conditions de marche de la machine à papier, la pâte brute, les différents additifs qu'on ajoute dans la suspension avant la formation de la feuille et aussi les produits qu'on couche sur la feuille de papier après la toile filtrante.The raw paper pulp consisting essentially of cellulose fibers is put into the form of a dilute aqueous suspension which is brought into the headbox of the paper machine from where it is distributed on a filter cloth on which the sheet is formed. of paper. This sheet is then wrung and dried. The qualities and properties of the paper obtained are determined in particular by the operating conditions of the paper machine, the raw pulp, the various additives that are added to the suspension before the sheet is formed and also the products that are coated. on the sheet of paper after the filter cloth.
La présente invention concerne plus spécialement les produits qu'on ajoute avant la formation de la feuille.The present invention relates more particularly to the products which are added before the sheet is formed.
La principale qualité recherchée pour l'emballage est la solidité, il peut aussi être intéressant de rendre le papier résistant à l'humidité. Les fibres de cellulose proviennent de pâte à papier brute mais souvent de papiers ou cartons recyclés, parfois mélangés avec de la pâte brute.The main quality sought for packaging is solidity, it can also be interesting to make paper resistant to humidity. Cellulose fibers come from raw pulp but often from recycled paper or cardboard, sometimes mixed with raw pulp.
Le brevet anglais GB 2 015 614 décrit un procédé de fabrication du papier d'emballage et des cannelures du carton dans lequel on ajoute à la suspension de fibres, avant la caisse de tête, de l'amidon cationique et un polychlorosulfate basique d'aluminium, ou du sulfate d'aluminium. La quantité d'amidon cationique ne dépasse pas 0,4 % du poids de fibres de cellulose. On sait que l'amidon cationique contribue à la résistance mécanique du papier et il serait utile de pouvoir en mettre beaucoup plus de 0,4 % dans la suspension et surtout de retenir cet amidon dans la feuille formée. Or l'amidon est très hydrophile et si on dépasse une quantité de 0,5 % on ne peut plus former la feuille de papier sur la toile filtrante sinon en réduisant fortement la productivité de la machine à papier. Selon la présente invention, on a trouvé un nouveau procédé qui permet d'utiliser des quantités d'amidon supérieures à 0,5 % dans la caisse de tête de la machine à papier.British patent GB 2,015,614 describes a process for manufacturing wrapping paper and cardboard grooves in which cationic starch and a basic aluminum polychlorosulfate are added to the fiber suspension before the headbox. , or aluminum sulfate. The amount of cationic starch does not exceed 0.4% of the weight of cellulose fibers. It is known that cationic starch contributes to the mechanical resistance of the paper and it would be useful to be able to put much more than 0.4% in the suspension and above all to retain this starch in the sheet formed. Starch is very hydrophilic and if we exceed an amount of 0.5% we can no longer form the sheet of paper on the filter cloth except by greatly reducing the productivity of the paper machine. According to the present invention, a new process has been found which makes it possible to use amounts of starch greater than 0.5% in the headbox of the paper machine.
La présente invention est un procédé de fabrication du papier d'emballage et du carton caractérisé à ce qu'on ajoute à la suspension contenant les fibres de cellulose avant la formation de la feuille:
- a) plus de 0,5 partie d'amidon cationique pour 100 parties de fibres de cellulose,
- b) de 0,02 à 0,3 parties en poids de polychlorure d'aluminium exprimé en Al2O3 pour 100 parties de fibres de cellulose, l'amidon cationique et le polychlorure d'aluminium étant ajoutés à la suspension juste en amont de la caisse de tête, l'amidon cationique étant ajouté en premier juste avant l'ajout de polychlorure d'aluminium.
- a) more than 0.5 part of cationic starch per 100 parts of cellulose fibers,
- b) from 0.02 to 0.3 parts by weight of polychloride of aluminum expressed as Al 2 O 3 per 100 parts of cellulose fibers, the cationic starch and the polychloride of aluminum being added to the suspension just upstream from the headbox, the cationic starch being added first just before the addition of poly aluminum chloride.
La suspension contenant les fibres de cellulose peut être de la pâte brute ou blanchie, ou un mélange de pâte brute et de pâte blanchie. Très souvent on ajoute des papiers et des cartons usagés au mélange précédent.The suspension containing the cellulose fibers can be raw or bleached pulp, or a mixture of raw pulp and bleached pulp. Very often we add used paper and cardboard to the previous mixture.
L'amidon cationique est un mélange d'un ou plusieurs produits commercialisés sous le nom générique d'amidon cationique. Ces produits sont par exemple ceux décrits dans KIRK OTHMER, 3ème édition, Vol. 21 page 503. La quantité est avantageusement comprise entre 0,5 et 5 parties pour 100 parties de fibres de cellulose, et de préférence comprise entre 0,7 et 2.Cationic starch is a mixture of one or more products marketed under the generic name of cationic starch. These products are for example those described in KIRK OTHMER, 3rd edition, Vol. 21 page 503. The amount is advantageously between 0.5 and 5 parts per 100 parts of cellulose fibers, and preferably between 0.7 and 2.
Le polychlorure d'aluminium désigne les produits qu'on appelle habituellement "polychlorure d'aluminium", "polychlorure basique d'aluminium", "polychlorosulfate basique d'aluminium" et de préférence un ou plusieurs produits suivants :
- 1/ le sel de formule :
Aln(OH)mCl3n-m (I)
dans laquelle n est quelconque, 3n-m est positif, m et n étant des nombres entiers positifs ; ledit sel pouvant contenir en outre un anion polyvalent Y choisi parmi les anions des acides sulfuriques, phosphoriques, polyphosphoriques, siliciques, chromique, carboxyliques et sulfoniques, le rapport molaire - 2/ le sel de formule :
Aln(OH)mCl3n-m-2k(SO4)k (II)
dans laquelle k, m et n sont des entiers positifs, 3n > m + 2k, la basicité m/3n est comprise entre 0,3 et 0,7 et k/n - 0,01 à 0,3. Ce produit peut être préparé selon le procédé décrit dans le brevet US 3 929 666 ; - 3/ le sel de formule :
[Aln(OH)3n-m-2pClm(SO4)p]z (III)
dans laquelle (3n-m-2p)/3n = 0,4 à 0,7 ; p = 0,04 à 0,25n ; m/p = 8 à 35 ; k, m, n et p sont des nombres entiers et z est au moins 1. Ce produit est décrit dans le brevet GB 2 128 977 ; - 4/ le chlorosulfate d'aluminium basique de formule
AlnOHm(SO4)kCl3n-m-2k (IV)
dans laquelle la basicité ou le rapport molaire
- 1 / the salt of formula:
Al n (OH) m Cl 3n-m (I)
in which n is arbitrary, 3n-m is positive, m and n being positive integers; said salt possibly containing a polyvalent anion Y chosen from anions of sulfuric, phosphoric, polyphosphoric, silicic, chromic, carboxylic and sulfonic acids, the molar ratio - 2 / the salt of formula:
Al n (OH) m Cl 3n-m-2k (SO 4 ) k (II)
in which k, m and n are positive integers, 3n> m + 2k, the basicity m / 3n is between 0.3 and 0.7 and k / n - 0.01 to 0.3. This product can be prepared according to the method described in US Patent 3,929,666; - 3 / the salt of formula:
[Al n (OH) 3n-m-2p Cl m (SO 4 ) p ] z (III)
in which (3n-m-2p) / 3n = 0.4 to 0.7; p = 0.04 to 0.25n; m / p = 8 to 35; k, m, n and p are whole numbers and z is at least 1. This product is described in patent GB 2,128,977; - 4 / basic aluminum chlorosulfate of formula
Al n OH m (SO 4 ) k Cl 3n-m-2k (IV)
in which the basicity or the molar ratio
On peut aussi ajouter dans la suspension de fibres de cellulose avant la formation de la feuille et en plus des produits a et b, d'autres produits tels que des colorants.Cellulose fibers can also be added to the suspension before the sheet is formed, and in addition to products a and b , other products such as dyes.
Selon un autre mode de réalisation de l'invention, on peut ajouter en plus de l'amidon cationique un ou plusieurs produits choisis parmi les polyacrylamides, les polyéthylèneimines, la carboxyméthylcellulose, les résines urée-formol, les résines mélamine-formol, les résines aminopolyamide-épichlorhydrine, les résines polyamide-épichlorhydrine. Avantageusement on utilise ces produits en plus de l'amidon cationique et dans les mêmes quantités.According to another embodiment of the invention, it is possible to add, in addition to the cationic starch, one or more products chosen from polyacrylamides, polyethyleneimines, carboxymethylcellulose, urea-formaldehyde resins, melamine-formaldehyde resins, resins aminopolyamide-epichlorohydrin, polyamide-epichlorohydrin resins. Advantageously, these products are used in addition to the cationic starch and in the same quantities.
On peut aussi selon un autre mode de réalisation de l'invention, en plus des produits a et b ou en plus des produits qu'on ajoute avec l'amidon cationique tels que les polyacrylamides et autres précédemment cités, ajouter un agent de collage pour rendre le papier un peu hydrophobe lui permettant de résister à l'humidité.It is also possible, according to another embodiment of the invention, in addition to the products a and b or in addition to the products which are added with cationic starch such as the polyacrylamides and others mentioned above, to add a sizing agent for make the paper a little hydrophobic allowing it to resist humidity.
Bien que tout agent de collage convienne, avantageusement on utilise de la collophane ou un mélange d'un ou plusieurs produits choisis parmi les alkyls cétènes dimères et leurs dérivés, les phosphates fluorés, les anhydrides d'acides carboxyliques à chaîne grasse, certains polyuréthanes, des copolymères styrène/anhydride maléïque.Although any bonding agent is suitable, it is advantageous to use rosin or a mixture of one or more products chosen from dimeric ketene alkyls and their derivatives, fluorinated phosphates, fatty chain carboxylic acid anhydrides, certain polyurethanes, styrene / maleic anhydride copolymers.
On préfère utiliser les alkyls cétènes dimères et les anhydrides d'acides carboxyliques. La quantité à utiliser est fonction des propriétés recherchées du papier ou du carton. Avantageusement la quantité est inférieure à 10 parties pour 100 parties de fibres de cellulose et de préférence comprise entre 0,1 et 2 parties.It is preferred to use dimeric ketene alkyls and anhydrides of carboxylic acids. The quantity to be used depends on the desired properties of the paper or the cardboard. Advantageously, the amount is less than 10 parts per 100 parts of cellulose fibers and preferably between 0.1 and 2 parts.
De préférence l'agent de collage est ajouté avant le polychlorure d'aluminium.Preferably the sizing agent is added before the poly aluminum chloride.
On peut aussi ajouter dans la suspension, avant la formation de la feuille, des additifs usuels tels que colorants, etc...It is also possible to add to the suspension, before the sheet is formed, usual additives such as dyes, etc.
Un autre avantage de l'invention, en plus des bonnes propriétés mécaniques obtenues, est une forte diminution des matières en suspension dans les eaux recueillies sous la toile filtrante lors de la formation de la feuille.Another advantage of the invention, in addition to the good mechanical properties obtained, is a large reduction in the matter in suspension in the water collected under the filter cloth during the formation of the sheet.
Un autre avantage de l'invention est une plus grande productivité de la machine à papier et une meilleure cohésion interne. Tous ces avantages apparaîtront dans les exemples. Les exemples suivants illustrent l'invention.Another advantage of the invention is greater productivity of the paper machine and better internal cohesion. All these advantages will appear in the examples. The following examples illustrate the invention.
-
Composition en caisse de tête :
- 100 % vieux papiers
- Agent de collage : Alkyl cétène dimère 0,15 parties
- 100% old paper
- Bonding agent: Alkyl ketene dimer 0.15 parts
-
Caractéristiques de fonctionnement de la machine à papier :
- Table plate laize utile : 2,6 m
- Grammage : 190 g/m2
- Nature du papier : couverture pour carton ondulé
- Traitement après formation de la feuille : pulvérisation d'amidon natif en surface.
- Useful flat table width: 2.6 m
- Weight: 190 g / m 2
- Type of paper: cover for corrugated cardboard
- Treatment after leaf formation: spraying of native starch on the surface.
On ajoute de l'amidon cationique, 1,4 parties pour 100 parties de fibres.
- Vitesse machine : 163 m/mn
- Rétention totale : 79 %
- Indice d'éclatement Mullen : 2,75 (selon la norme afnor NF Q 03053)
- pH (en caisse de tête) : 7,2
- Machine speed: 163 m / min
- Total retention: 79%
- Mullen burst index: 2.75 (according to afnor standard NF Q 03053)
- pH (in headbox): 7.2
On opère comme dans l'exemple 1 mais on ajoute en plus, avant la caisse de tête, un polychlorure d'aluminium en proportion de 0,15 parties exprimé en Al2O3 pour 100 parties de fibres de cellulose.The procedure is as in Example 1, but in addition, before the headbox, an aluminum polychloride is added in proportion of 0.15 parts expressed as Al 2 O 3 per 100 parts of cellulose fibers.
On obtient :
On opère comme dans l'exemple 2 mais en ajoutant 0,16 partie de polychlorure d'aluminium comte dans l'exemple 2 pour 100 parties de fibres de cellulose, on obtient :
Claims (8)
- Process for the manufacture of wrapping paper and of cardboard, characterized in that the following are added to the suspension containing the cellulose fibres before the sheet is formed:a) more than 0.5 parts by weight of cationic starch per 100 parts of cellulose fibres,b) from 0.02 to 0.3 parts by weight of aluminium polychloride expressed as Al2O3 per 100 parts of cellulose fibres,the cationic starch and the aluminium polychloride being added to the suspension just upstream of the stuff-chest, the cationic starch being added first, just before the addition of the aluminium polychloride.
- Process according to Claim 1, characterized in that a sizing agent is added, in addition to a and b.
- Process according to Claim 1 or 2, characterized in that b is a basic aluminium polychlorosulphate.
- Process according to one of Claims 1 to 3, characterized in that the quantity of a is between 0.5 and 5 parts per 100 parts of cellulose fibres.
- Process according to one of Claims 1 to 4, characterized in that the quantity of a is between 0.7 and 2 parts per 100 parts of cellulose fibres.
- Process according to one of Claims 2 to 5, characterized in that the sizing agent is chosen from alkyl ketene dimers and carboxylic acid anhydrides.
- Process according to one of Claims 2 to 6, characterized in that the quantity of sizing agent is lower than 10 parts per 100 parts of cellulose fibres and is between 0.1 and 2 parts.
- Process according to one of Claims 1 to 7, characterized in that, in addition to a and b or in addition to a and b and the sizing agent, at least one product is added, chosen from polyacrylamides, polyethyleneimines, carboxymethyl cellulose, urea-formaldehyde resins, melamine-formaldehyde resins, aminopolyamide-epichlorohydrin resins and polyamide-epichlorohydrin resins.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88400617T ATE56493T1 (en) | 1987-03-23 | 1988-03-15 | PROCESS FOR MANUFACTURE OF PACKAGING PAPER AND CARDBOARD. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8704002A FR2612960B1 (en) | 1987-03-23 | 1987-03-23 | PROCESS FOR THE MANUFACTURE OF PACKAGING PAPER AND CARDBOARD BY ADDITION TO THE FIBROUS SUSPENSION OF CATIONIC STARCH AND ALUMINUM POLYCHLORIDE |
FR8704002 | 1987-03-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0285486A1 EP0285486A1 (en) | 1988-10-05 |
EP0285486B1 EP0285486B1 (en) | 1990-09-12 |
EP0285486B2 true EP0285486B2 (en) | 1997-12-17 |
Family
ID=9349311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88400617A Expired - Lifetime EP0285486B2 (en) | 1987-03-23 | 1988-03-15 | Process for producing packaging paper and board |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0285486B2 (en) |
JP (1) | JPH0723596B2 (en) |
AT (1) | ATE56493T1 (en) |
CA (1) | CA1324704C (en) |
DE (1) | DE3860586D1 (en) |
DK (1) | DK171149B1 (en) |
ES (1) | ES2018079T5 (en) |
FI (1) | FI94971C (en) |
FR (1) | FR2612960B1 (en) |
GR (2) | GR3001183T3 (en) |
IE (1) | IE60108B1 (en) |
NO (1) | NO174012C (en) |
PT (1) | PT87043B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02293493A (en) * | 1989-04-28 | 1990-12-04 | Arakawa Chem Ind Co Ltd | Sizing agent for ketene dimer-based paper making |
FR2678961B1 (en) * | 1991-07-12 | 1993-10-15 | Atochem | NEW PROCESS FOR THE MANUFACTURE OF PAPER AND THE PAPER THUS OBTAINED. |
IT1271003B (en) * | 1994-09-08 | 1997-05-26 | Ausimont Spa | HIGH MECHANICAL RESISTANCE PAPER AND CARDBOARD PRODUCTION PROCESS |
FR2732368B1 (en) * | 1995-03-31 | 1997-06-06 | Roquette Freres | NEW PAPERMAKING PROCESS |
FR2743810B1 (en) | 1996-01-23 | 1998-04-10 | Roquette Freres | MODIFIED CATIONIC POLYSACCHARIDES, BONDING COMPOSITIONS CONTAINING THEM AND METHODS FOR BONDING PLANAR STRUCTURES USING THE SAME |
CN114673025B (en) | 2016-06-01 | 2023-12-05 | 艺康美国股份有限公司 | High-efficiency strength scheme for papermaking in high-charge-demand systems |
CN109468886A (en) * | 2018-12-27 | 2019-03-15 | 东莞市江高包装材料有限公司 | A kind of production technology of wrapping paper |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5374118A (en) * | 1976-12-09 | 1978-07-01 | Toa Gosei Chem Ind | Additives for paper making |
FR2418297A1 (en) * | 1978-02-27 | 1979-09-21 | Ugine Kuhlmann | IMPROVEMENT OF PAPER AND BOARD MANUFACTURING PROCESSES |
JPS59199900A (en) * | 1983-04-18 | 1984-11-13 | 三菱製紙株式会社 | Neutral paper |
JPS60185899A (en) * | 1984-03-05 | 1985-09-21 | 三菱製紙株式会社 | Neutral paper |
SE8405260L (en) * | 1984-10-22 | 1986-04-23 | Eka Ab | HYDROPHOBING AGENTS FOR ORGANIC FIBERS, Separate CELLULOS FIBERS, SET TO MAKE THIS AGENT AND THE USE OF THE MELD HYDROPHOBING AGENT |
-
1987
- 1987-03-23 FR FR8704002A patent/FR2612960B1/en not_active Expired
-
1988
- 1988-03-08 NO NO881030A patent/NO174012C/en unknown
- 1988-03-15 DE DE8888400617T patent/DE3860586D1/en not_active Expired - Fee Related
- 1988-03-15 EP EP88400617A patent/EP0285486B2/en not_active Expired - Lifetime
- 1988-03-15 AT AT88400617T patent/ATE56493T1/en active
- 1988-03-15 ES ES88400617T patent/ES2018079T5/en not_active Expired - Lifetime
- 1988-03-22 DK DK154688A patent/DK171149B1/en not_active IP Right Cessation
- 1988-03-22 CA CA000562130A patent/CA1324704C/en not_active Expired - Fee Related
- 1988-03-22 PT PT87043A patent/PT87043B/en not_active IP Right Cessation
- 1988-03-22 FI FI881368A patent/FI94971C/en not_active IP Right Cessation
- 1988-03-22 IE IE84188A patent/IE60108B1/en not_active IP Right Cessation
- 1988-03-23 JP JP63069223A patent/JPH0723596B2/en not_active Expired - Fee Related
-
1990
- 1990-12-11 GR GR90401051T patent/GR3001183T3/en unknown
-
1998
- 1998-03-13 GR GR980400527T patent/GR3026342T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
DK154688D0 (en) | 1988-03-22 |
FR2612960B1 (en) | 1989-06-16 |
IE880841L (en) | 1988-09-23 |
CA1324704C (en) | 1993-11-30 |
DK171149B1 (en) | 1996-07-01 |
FI94971B (en) | 1995-08-15 |
ES2018079T5 (en) | 1998-02-16 |
PT87043B (en) | 1992-07-31 |
IE60108B1 (en) | 1994-06-01 |
ES2018079B3 (en) | 1991-03-16 |
NO174012C (en) | 1994-03-02 |
GR3001183T3 (en) | 1992-06-30 |
FI881368A0 (en) | 1988-03-22 |
ATE56493T1 (en) | 1990-09-15 |
NO174012B (en) | 1993-11-22 |
EP0285486A1 (en) | 1988-10-05 |
DE3860586D1 (en) | 1990-10-18 |
DK154688A (en) | 1988-09-24 |
JPS63256795A (en) | 1988-10-24 |
FI881368A (en) | 1988-09-24 |
FI94971C (en) | 1995-11-27 |
NO881030D0 (en) | 1988-03-08 |
NO881030L (en) | 1988-09-26 |
FR2612960A1 (en) | 1988-09-30 |
EP0285486B1 (en) | 1990-09-12 |
JPH0723596B2 (en) | 1995-03-15 |
GR3026342T3 (en) | 1998-06-30 |
PT87043A (en) | 1988-04-01 |
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