EP0043790A1 - Procédé d'augmentation ou d'amélioration de l'effet de blanchiment lors du blanchiment optique de compositions d'enduction - Google Patents

Procédé d'augmentation ou d'amélioration de l'effet de blanchiment lors du blanchiment optique de compositions d'enduction Download PDF

Info

Publication number
EP0043790A1
EP0043790A1 EP81810008A EP81810008A EP0043790A1 EP 0043790 A1 EP0043790 A1 EP 0043790A1 EP 81810008 A EP81810008 A EP 81810008A EP 81810008 A EP81810008 A EP 81810008A EP 0043790 A1 EP0043790 A1 EP 0043790A1
Authority
EP
European Patent Office
Prior art keywords
formula
brightener
coating
phosphoric acid
radical
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.)
Granted
Application number
EP81810008A
Other languages
German (de)
English (en)
Other versions
EP0043790B1 (fr
Inventor
Werner Dr. Fringeli
Max Flubacher
Alain Dr. Lauton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Priority to AT81810008T priority Critical patent/ATE8516T1/de
Publication of EP0043790A1 publication Critical patent/EP0043790A1/fr
Application granted granted Critical
Publication of EP0043790B1 publication Critical patent/EP0043790B1/fr
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • 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
    • D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Definitions

  • the present invention relates to a method for increasing or improving the white effect in the optical brightening of coating slips for the coating of paper or cardboard with the aid of brighteners of the bis-triazinylaminostilbene-2,2'-disulfonic acid series and optically brightened coating slips and with these coating slips coated paper or cardboard.
  • Brighteners from the class of bis-triazinylaminostilbene-2,2'-disulfonic acids are also suitable for lightening paper.
  • problems arise depending on the brightener and depending on the composition of the coating slip so that either insufficient white effects are obtained or that some brighteners are out of the question for application in certain coating slips.
  • DE-OSes 28 06 194 and 28 06 195 disclose coating compositions to which a dispersion brightener, but also bis-triazinylaminostilbene-2,2'-disulfonic acid brightener, mixed with water, an organic liquid boiling above 150 ° C, e.g. Triethyl phosphate, trioctyl phosphate, tricresyl phosphate or trichloroethyl phosphate, and a solubilizer, e.g. a non-ionic emulsifier is added.
  • This method is mainly suitable for dispersion brighteners.
  • the use of relatively expensive, high-boiling organic solvents is not advantageous for various reasons.
  • This object was surprisingly achieved by adding an acidic phosphoric acid ester of a fatty amine oxalkylation product of the formula (1) below to the coating slip in addition to the brightener.
  • This measure significantly improves the whiteness of the lightened coating slips, in particular at higher brightener concentrations, and the undesired greening is avoided.
  • the degree of whiteness increases practically linearly with the logarithm of the increasing brightener concentration, so that very high degrees of whiteness can be achieved.
  • R is an aliphatic hydrocarbon radical having 8-22 carbon atoms
  • y 1 and Y 2 both hydrogen or one of these two symbols hydrogen and the other methyl
  • X the acid radical of phosphoric acid
  • the acidic hydrogen atoms of this residue can be replaced by alkali metal, ammonium or amine salt ions
  • m and n are integers, the sum n + m being between 2 and 30.
  • the aliphatic radical R preferably denotes an alkyl or alkenyl radical (branched or unbranched) having 10 to 18 carbon atoms.
  • Auxiliaries which can preferably be used correspond to the formula wherein R 'is an alkyl or alkenyl radical having 10 to 18 carbon atoms, X' the acid radical of phosphoric acid, the acidic hydrogen atoms of this radical can also be replaced by alkali metal or ammonium ions and n 'and m' are integers, the Sum n '+ m' is between 4 and 20.
  • the radical R need not have a certain number of carbon atoms, but it can also be a mixture of hydrocarbon chains of different lengths, as is the case with many fatty amines derived from natural fats.
  • a preferred residue of this type is the hydrocarbon residue of tallow fatty amine.
  • Y and Y 2 are preferably hydrogen.
  • the acid component of the ester of formula (1) is phosphoric acid.
  • X is therefore the rest of the phosphoric acid.
  • the terminal OH groups of the ethylene oxide or propylene oxide chains can be completely or only partially esterified.
  • the number of acidic hydrogen atoms in the phosphoric acid residue X is not an integral number.
  • These acidic hydrogen atoms can also be replaced by alkali metal, ammonium or amine salt ions, so that the residue X is in salt form.
  • the radical X is preferably in its acidic form.
  • Bis-triazinylaminostilbene-2,2'-disulphonic acid brighteners which are used according to the invention for the optical brightening of coating slips are, in particular, those of the formula used, in which M is hydrogen, an alkali metal, ammonium or amine salt ion, R 1 and R 2 NH 2 , NH-CH 3 , NH-C 2 H 5 , N (CH 3 ) 2 , N (C 2 H 5 ) 2 , NH-CH 2 -CH 2 -OH, NH-CH 2 -CH 2 -CH 2 -OH, N (CH 2 -CH 2 -OH) 2 , N (CH 2 -CH 2 -CH 2 -OH) 2 , N (CH 3 ) (CH 2 -CH 2 -OH) , NH-CH 2 -CH 2 -O-CH 2 -CH 2 -OH, NH-CH 2 -CH 2 -SO 2 M, OH, OCH 3 , OCH (CH
  • a brightener of the formula is preferably used wherein R 1 -NHCH 2 CH 2 OH, -N (CH 2 CH 2 OH) 2 , -N (CH 2 CH 3 ) 2 or or and M 'is hydrogen or an alkali metal ion, an ammonium, diethanolammonium or triethanolammonium ion.
  • M denotes an alkali metal ion, in particular a sodium or potassium ion, an ammonium ion or an amine salt ion, for example a primary one or secondary alkyl amines, where the alkyl group (s) can be substituted by halogen, hydroxy (eg ethanolamine, diethanolamine, triethanolamine) or alkoxy or a cyclic amine, eg a piperidine, pyrrolidine, piperazine or morpholine.
  • the acidic hydrogen atoms in the phosphoric acid residue X of the compounds of formula (1) or (2) can optionally be replaced by the same ions as defined for M above.
  • the rest X is then in salt form.
  • Non-ionic or anionic surfactants, organic solubilizers and / or certain organic polar compounds can be considered as such additional aids.
  • the acidic phosphoric acid esters of fatty amine oxalkylation products of the formula (1) used in the process according to the invention are known and can be obtained simply by esterification of a fatty amine oxalkylation product of the formula wherein the general symbols as defined in formula (1) can be obtained with phosphoric acid, phosphorus pentoxide or a halide of phosphoric acid.
  • the reaction with phosphorus pentoxide is preferred.
  • the esterification is conveniently carried out by simply mixing the reactants with heating, for example to 50-100 ° C.
  • the acidic esters can be converted into the corresponding salts (alkali metal, ammonium or amine salts), for example in a conventional manner by adding the corresponding bases, for example ammonia, monoethanolamine, triethanolamine, alkali metal hydroxides.
  • the addition products of the formula (5) are known and can be prepared in a known manner by adding 2 to 30 mol of ethylene oxide or propylene oxide to an aliphatic amine having a hydrocarbon radical of 8 to 22 carbon atoms.
  • the process according to the invention is expediently carried out in such a way that, for example, the brightener, an acidic phosphoric acid ester of a fatty amine oxalkylation product of the formula (1) and, if appropriate, one or more of the above-mentioned additional auxiliaries, individually and for the respective coating liquor which is prepared in the customary manner mixed in in any order and finely divided therein, for example at temperatures between 10 and 150 ° C.
  • the whitening agent can also be mixed with an acidic phosphoric acid ester of a fatty amine oxalkylation product of the formula (1) and optionally with one or more of the above-mentioned additional auxiliaries, advantageously with the addition of water, before the addition to the coating liquor, and the whitening agent preparation obtained can then, are added to the coating liquor as described above.
  • the finished coating slip can then be used to coat paper or cardboard with conventional coating apparatus, for example with an air knife, a doctor blade, a brush, a roller, a doctor blade, a rod or another coating apparatus customary in the paper industry.
  • the amount of compound of the formula (1) used in the process according to the invention can vary within wide limits. Even at a ratio of brightener to compound of the formula (1) of 1: 0 9 5, positive effects are observed. This ratio is preferably 1: 1 to 1: 5, in particular 1: 1 to 1: 3. With a ratio of 1: 2, particularly good effects are achieved. It would also be entirely possible to use more compound of the formula (1) than corresponds to the ratio 1: 5; however, this is both out In practice, it is not practical for economic reasons or because of the associated influence on the consistency of the coating slip.
  • the amount of optional aids can vary within wide limits. The ratio of brightener to these aids can be between 1: 0.1 to 1:10, depending on the type of aid used (see also examples).
  • the amount of brightener that is added to the coating slips is within the normal range in the paper industry. For example, amounts between 1 g and 50 g / 1 coating liquor are considered, preferably those between 4 and 20 g / l.
  • the method according to the invention also allows brightener concentrations higher than they are usually used (e.g. 4 to 8 g / l). Without the addition of compounds of the formula (I), for example at concentrations of more than 10 g of brightener per liter, there is often already a drop in whiteness or severe greening.
  • compounds of the formula (1) are added according to the invention, this effect is eliminated: with an increasing brightener concentration, the attainable degree of whiteness also increases.
  • the process according to the invention is suitable for the optical brightening of the coating slips usually used in the paper industry, specifically of unpigmented, but in particular pigmented coating slips.
  • These coating slips contain a polymeric binder, an inorganic pigment (in the case of pigmented coating slips) and optionally other additives such as e.g. Waxes, dispersants, wetting agents or other surface-active agents, viscosity regulators, antifoams, lubricants, plasticizers and / or preservatives.
  • polymeric adhesive-binder systems used in the paper industry come in as polymeric binders
  • any of the known, modified, or converted starches such as oxidized, hydrolyzed, or hydroxyethylated starches, can be used.
  • other natural or synthetic polymeric binder systems can be used alone or particularly in the case of synthetic polymeric binders in combination with one another.
  • the wash liquors can contain metal-binding agents such as, for example, water-soluble poly- or metaphosphates and polycarboxylic acid salts.
  • an alkaline coating liquor is used for the pigment coat.
  • the alkaline reaction is expediently set with ammonia or with NaOH or KOH or with Na or K carbonates or borates or mixtures thereof.
  • wetting agents are unsulphated or sulphated higher alkanol or alkylphenol polyglycol ethers with an 8 to 14 carbon atom having alkyl radical with 1 to 20 ethylene oxide groups can be used.
  • the present invention further relates to the coating slips lightened by the process according to the invention, that is to say an optical brightener of the bis-triazinylaminostilbene-2,2'-disulphonic acid series, preferably one of the formula (2), in particular one of the formula (3) and an acidic phosphoric acid ester of a fatty aminoxalkylation product of formula (1), preferably one of formula (2).
  • an optical brightener of the bis-triazinylaminostilbene-2,2'-disulphonic acid series preferably one of the formula (2), in particular one of the formula (3) and an acidic phosphoric acid ester of a fatty aminoxalkylation product of formula (1), preferably one of formula (2).
  • the coating slips according to the invention can additionally contain nonionic or anionic surfactants, organic solubilizers and / or polar organic compounds, for example as organic solubilizers, hydrophilic organic solvents, for example lower monohydric alcohols, polyhydric alcohols, Ether alcohols, glycols, polyglycols, glycol and polyglycol ethers, amides and / or amines or as a polar organic compound dimethyl sulfoxide, dimethyl sulfone, ethylene or propylene carbonate and / or urea, or nonionic surfactants such as adducts of alkylene oxides with higher fatty acids, fatty acid amides, aliphatic alcohols Mercaptans or amines, on alkylphenols, alkylthiophenols or phenylphenols, block polymers of ethylene oxides
  • nonionic surfactants such as adducts of alkylene oxides with higher fatty acids, fatty acid amide
  • the present invention relates to paper and cardboard coated with coating compositions according to the invention (as described above).
  • Example 2 100 g of starch ("Paperol R 10") and 950 ml of demineralized water are heated to 80 ° C. in the course of 10-15 minutes in a 2.1 beaker and then stirred at 80-85 ° C. for 15 minutes. A slightly cloudy, gray, colloidal solution is obtained, to which 7.5 g of the acidic phosphoric acid ester of a fatty amine oxyalkylation product of the formula (6) are added. The mixture is then cooled to about 40 ° C., 50 ml of 4-nonylphenol 1:25 ethoxylated with 9.7 mol of ethylene oxide are added, and the mixture is made up to about 1000 ml with demineralized water and shaken briefly. Then with conc. Ammonia adjusted a pH of 8-9.
  • Example 3 If Example 1 is repeated, but instead of the brightener of the formula (10), the corresponding amount of a brightener of the following formulas is used: , paper with a similarly high degree of whiteness is obtained.
  • Example 4 If example 2 is repeated, but instead of using the brightener of the formula (10), the corresponding amount of a brightener of the formula (11), (12), (13), (14) or (15) is used, the result is Paper with a similar degree of whiteness.
  • the coating slip is finished and the paper is coated as described in Examples 1b) and 1c).
  • paper with a high degree of whiteness is obtained, which is considerably higher than that which is achieved with the individual brightener formulations A) to E), but without the compound of the formula (6).
  • the coating slip is finished and the paper is coated as described in Examples 1b) and 1c). You get paper with a high degree of whiteness, which is significantly higher than that. with the individual brightener formulations A) to F), but without a compound of the formula (6), (6a), (6b) or (6c).
  • the coating slips obtained in accordance with A to D are stirred again and strips of coating base paper prepared therewith are coated in the customary manner. In this way, papers are obtained whose whiteness is significantly higher than that of a comparison paper which is coated with a coating liquor which contains no acidic ester of the formula (6), (6a), (6b) or (6c).
  • Example 10 If Example 8 is repeated, but instead of the brightener of the formula (10), the corresponding amount of a brightener of the formula (11), (12), (13), (14) or (15) is used, paper is also obtained similarly high degree of whiteness.
  • Example 11 If Example 9 is repeated, but instead of using the brightener of the formula (10), the corresponding amount of a brightener of the formula (11), (12), (13), (14) or (15) is used, the result is Paper with a similarly high degree of whiteness.
  • Example 12 5 ml of the brightener solutions A) to E) defined in Example 5 are added to 15 ml of a pigment coating liquor obtained according to Example 8a). The coating slip is finished and the paper is coated as described in Examples 8b) and 8c). You get paper with a high degree of whiteness, which is much higher than that with the individual brighteners formulations A) to E), but without a compound of formula (6).
  • Example 14 Example 13 is repeated, but 14 g of the compound of the formula (6) were additionally added in the preparation of the art print coating slip according to Example 13a). 15 ml of the coating slip otherwise prepared as described in Example 13a) are then mixed with 5 ml of a Brightener solution added, which consists of 11.6 g of the brightener of the formula (10) and 88.4 g of water. Further workup is carried out as described in Example 13. A paper with a significantly higher degree of whiteness than that obtained by coating with an appropriate coating liquor which does not contain the compound of the formula (6) is likewise obtained.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Paints Or Removers (AREA)
  • Medicinal Preparation (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Noodles (AREA)
EP81810008A 1980-07-03 1981-01-08 Procédé d'augmentation ou d'amélioration de l'effet de blanchiment lors du blanchiment optique de compositions d'enduction Expired EP0043790B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81810008T ATE8516T1 (de) 1980-07-03 1981-01-08 Verfahren zur erhoehung bzw. verbesserung des weisseffekts beim optischen aufhellen von streichmassen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5140/80 1980-07-03
CH514080 1980-07-03

Publications (2)

Publication Number Publication Date
EP0043790A1 true EP0043790A1 (fr) 1982-01-13
EP0043790B1 EP0043790B1 (fr) 1984-07-18

Family

ID=4288608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81810008A Expired EP0043790B1 (fr) 1980-07-03 1981-01-08 Procédé d'augmentation ou d'amélioration de l'effet de blanchiment lors du blanchiment optique de compositions d'enduction

Country Status (11)

Country Link
US (1) US4386965A (fr)
EP (1) EP0043790B1 (fr)
JP (1) JPS5716995A (fr)
AT (1) ATE8516T1 (fr)
AU (1) AU6617581A (fr)
BR (1) BR8100171A (fr)
CA (1) CA1158002A (fr)
DE (1) DE3164785D1 (fr)
ES (1) ES498461A0 (fr)
PT (1) PT72351B (fr)
ZA (1) ZA81201B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3502038A1 (de) * 1985-01-23 1986-07-24 Sandoz-Patent-GmbH, 7850 Lörrach Waessrige aufhellerpraeparate und deren verwendung im papierstrich
WO1992001115A1 (fr) * 1990-07-03 1992-01-23 W.R. Grace & Co.-Conn. Ameliorations apportees a des agents de blanchiment fluorescents
EP0808893A3 (fr) * 1996-05-21 1997-12-03 3V SIGMA S.p.A Méthode pour blanchir une composition détergente
US5846923A (en) * 1997-07-08 1998-12-08 Rhodia Inc. Polyamphoteric phosphate ester surfactants

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096654B1 (fr) * 1982-05-28 1987-10-28 Ciba-Geigy Ag Procédé d'encollage du papier avec des agents d'encollage anioniques hydrophobes et des agents de rétention cationiques
JPS60134096A (ja) * 1983-12-17 1985-07-17 日本曹達株式会社 コ−テツドペ−パ−の製造方法
DE19500195A1 (de) 1995-01-05 1996-07-11 Bayer Ag Verwendung weißgetönter Kunststoffe zum Weißtönen von Papierstreichmassen und derart weißgetönte Papierstreichmassen
US5658971A (en) * 1995-05-31 1997-08-19 Dallas Enviro-Tek International, Inc. Coating composition
US6086987A (en) * 1997-01-23 2000-07-11 Oji-Yuka Synthetic Paper Co., Ltd. Synthetic paper and inkjet recording paper with the use of the same
US6316535B1 (en) * 1999-05-18 2001-11-13 Armstrong World Industries, Inc. Coating system and method of applying the same
FR2812890B1 (fr) * 2000-08-10 2003-06-20 Synthron Utilisation d'une association de phosphate d'uree et d'un azurant optique pour augmenter le degre de blancheur des papiers et cartons
US6737469B2 (en) 2001-09-27 2004-05-18 Basf Ag Method of adding water insoluble organic chemicals to styrene-butadiene rubber latex dispersions and resulting styrene-butadiene rubber latex dispersions
DE10217677A1 (de) * 2002-04-19 2003-11-06 Bayer Ag Verwendung von Aufhellern zur Herstellung von Streichmassen
SE524471C2 (sv) * 2002-12-04 2004-08-10 Holmen Ab Metod för att öka stabiliteten hos fluorescerande vitmedel
US7682438B2 (en) 2005-11-01 2010-03-23 International Paper Company Paper substrate having enhanced print density
EP2152522A1 (fr) * 2007-05-21 2010-02-17 International Paper Company Feuille d'enregistrement présentant une résistance à l'eau de l'image, une résistance superficielle et un comportement améliorés
US8057637B2 (en) 2007-12-26 2011-11-15 International Paper Company Paper substrate containing a wetting agent and having improved print mottle
US8460511B2 (en) * 2008-10-01 2013-06-11 International Paper Company Paper substrate containing a wetting agent and having improved printability
CN102898855B (zh) * 2012-09-29 2013-12-11 山东大学 具有氨基酸结构的十六或十八烷基二甲基叔胺季铵盐高性能荧光增白剂的合成及应用
CN103194086B (zh) * 2013-03-14 2014-07-02 浙江传化华洋化工有限公司 一种含氨基丙酸衍生物荧光增白剂的合成方法
CN103254660B (zh) * 2013-05-20 2014-07-30 浙江传化华洋化工有限公司 一种不含尿素的二磺酸三嗪基类荧光增白剂液体的制备方法
CN103558172B (zh) * 2013-11-22 2015-11-25 江南大学 一种用于荧光增白材料白度目测评估的方法
SE542658C2 (en) 2018-05-18 2020-06-23 Stora Enso Oyj Coating composition for paper and paperboard

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2412785A1 (de) * 1974-03-16 1975-10-09 Bayer Ag Verfahren zum weisstoenen stickstoffhaltiger fasermaterialien und fasermaterialien aus cellulose
US4183766A (en) * 1978-06-12 1980-01-15 Woodward Fred E Paper coating composition

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA813769A (en) * 1969-05-27 Geigy Chemical Corporation Optical brightening of paper
US2956898A (en) * 1960-10-18 Certification of correction
US3600385A (en) * 1968-12-16 1971-08-17 American Cyanamid Co Bis-(triazinylamino) stilbene derivatives for optical brightening
DE1935004C2 (de) * 1969-07-10 1971-04-15 Basf Ag Verfahren zum Faerben und/oder Bedrucken von synthetischen Polyamiden
GB1294173A (en) 1970-06-02 1972-10-25 Ici Ltd Coating compositions
GB1391593A (en) 1971-06-17 1975-04-23 Ici Ltd Coating compositions
DE2152969B2 (de) * 1971-10-23 1975-04-10 Bayer Ag, 5090 Leverkusen Mittel und Verfahren zum Weißtönen von Fasermaterialien
JPS4930866A (fr) * 1972-07-21 1974-03-19
DE2726854A1 (de) * 1977-06-15 1979-01-11 Bayer Ag Phosphorsaeureester
DE2806194A1 (de) * 1978-02-14 1979-08-23 Bayer Ag Beschichtungszusammensetzung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2412785A1 (de) * 1974-03-16 1975-10-09 Bayer Ag Verfahren zum weisstoenen stickstoffhaltiger fasermaterialien und fasermaterialien aus cellulose
US4183766A (en) * 1978-06-12 1980-01-15 Woodward Fred E Paper coating composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3502038A1 (de) * 1985-01-23 1986-07-24 Sandoz-Patent-GmbH, 7850 Lörrach Waessrige aufhellerpraeparate und deren verwendung im papierstrich
WO1992001115A1 (fr) * 1990-07-03 1992-01-23 W.R. Grace & Co.-Conn. Ameliorations apportees a des agents de blanchiment fluorescents
EP0808893A3 (fr) * 1996-05-21 1997-12-03 3V SIGMA S.p.A Méthode pour blanchir une composition détergente
US5846923A (en) * 1997-07-08 1998-12-08 Rhodia Inc. Polyamphoteric phosphate ester surfactants

Also Published As

Publication number Publication date
PT72351A (en) 1981-02-01
ATE8516T1 (de) 1984-08-15
ZA81201B (en) 1982-02-24
JPS5716995A (en) 1982-01-28
CA1158002A (fr) 1983-12-06
AU6617581A (en) 1982-01-07
ES8205909A1 (es) 1982-07-01
JPH0159395B2 (fr) 1989-12-18
ES498461A0 (es) 1982-07-01
BR8100171A (pt) 1982-08-17
DE3164785D1 (en) 1984-08-23
US4386965A (en) 1983-06-07
EP0043790B1 (fr) 1984-07-18
PT72351B (en) 1983-09-01

Similar Documents

Publication Publication Date Title
EP0043790B1 (fr) Procédé d'augmentation ou d'amélioration de l'effet de blanchiment lors du blanchiment optique de compositions d'enduction
EP0192600B1 (fr) Compositions aqueuses d'azurants optiques et leur utilisation dans le couchage du papier
EP0339310B1 (fr) Dispersion aqueuse de gypse et son utilisation comme matière de charge et pigment d'enduction lors de la fabrication du papier et du carton
DE69807397T2 (de) Triazinylaminostilben Verbindungen
EP0835906B1 (fr) Dispersions d'azurants optiques
DE1206296B (de) Konzentriertes fluessiges Aufhellungsmittel fuer Papiere
EP0274666B1 (fr) Compositions de couchage pour papier comprenant des agents de blanchiment
DE2425265A1 (de) Mittel zur oberflaechenleimung von papier
DD145291A5 (de) Stabile stilbenaufhellerloesungen
EP0340583B1 (fr) Dispersions aqueuses avec des combinaisons synergistiques d'agents de dispersions
DE2633261C2 (fr)
DE2715864A1 (de) Verfahren zum optischen aufhellen von papier
DE3601929A1 (de) Entschaeumer auf basis von oel-in-wasser-emulsionen
DE2854484A1 (de) Stabile waessrige zeolith-suspensionen
DE2152523B2 (de) Stabile konzentrierte Lösungen von wasserlöslichen tertiären Ammonsalzen von Direktfarbstoffen, Verfahren zu deren Herstellung und ihre Verwendung zum Färben von Cellulosematerial, insbesondere Papier
DE1939521C3 (de) Gegebenenfalls substituierte 4,4-Bis-^-beta-carbamido-äthylamino^-anilino-striazin-6-yl-amino)stilben-2,2'-disulfonate und Verfahren zu ihrer Herstellung und ihre Verwendung
DE2335570A1 (de) Verfahren zur herstellung von bistriazinylamino-stilben-disulfonsaeuren(2,2'), neue bis-triazinyl-amino-stilbendisulfonsaeuren-(2,2'), sowie deren verwendung als optische aufheller fuer organische materialien
DE1696203A1 (de) Verwendung von Bis-s-triazinylamino-stilben-2,2'-disulfonsaeuren zum optischen Aufhellen von Papier
DE3877377T2 (de) Oelabstossende zusammensetzung fuer papier.
EP0479726A1 (fr) Solutions aqueuses concentrées de colorants bisazoiques anioniques
EP0623704A1 (fr) Procédé pour teindre le papier avec des colorants disazo
EP1624105B1 (fr) Agent blanchissant à base de dérivés flavonates triazinylés contenant des ammoniums-alkanols
EP0601401A1 (fr) Colorants azoiques doublés
DE4027237C2 (fr)
EP0427040A1 (fr) Compositions de couchage pour papier comprenant des agents de blanchiment

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19810110

AK Designated contracting states

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

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

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

REF Corresponds to:

Ref document number: 8516

Country of ref document: AT

Date of ref document: 19840815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3164785

Country of ref document: DE

Date of ref document: 19840823

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: CIBA-GEIGY A.G.

Effective date: 19870131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19890131

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19901120

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19901203

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19901214

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19901219

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910313

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920108

Ref country code: AT

Effective date: 19920108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19920131

Ref country code: LI

Effective date: 19920131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920801

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19921001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST