EP0588767B1 - Procédé pur améliorer la blancheur, la clarté et la couleur de matières fibreuses en bois - Google Patents

Procédé pur améliorer la blancheur, la clarté et la couleur de matières fibreuses en bois Download PDF

Info

Publication number
EP0588767B1
EP0588767B1 EP93810632A EP93810632A EP0588767B1 EP 0588767 B1 EP0588767 B1 EP 0588767B1 EP 93810632 A EP93810632 A EP 93810632A EP 93810632 A EP93810632 A EP 93810632A EP 0588767 B1 EP0588767 B1 EP 0588767B1
Authority
EP
European Patent Office
Prior art keywords
process according
paper making
making fibres
mixture
paper
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
Application number
EP93810632A
Other languages
German (de)
English (en)
Other versions
EP0588767A1 (fr
Inventor
Axel Dr. Von Raven
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.)
BASF Schweiz 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
Publication of EP0588767A1 publication Critical patent/EP0588767A1/fr
Application granted granted Critical
Publication of EP0588767B1 publication Critical patent/EP0588767B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/657—Optical bleaching or brightening combined with other treatments, e.g. finishing, bleaching, softening, dyeing or pigment printing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/686—Fugitive optical brightening; Discharge of optical brighteners in discharge paste; Blueing; Differential optical brightening
    • D06L4/693—Blueing with mixtures of dyes; Blueing with mixtures of dyes and optical brighteners
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/22—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using vat dyestuffs including indigo
    • D06P1/26—Phthalocyanine dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Definitions

  • the invention relates to the addition of water-soluble phthalocyanines as photosensitizing compounds to wood fiber materials and their mixtures to improve their whiteness, brightness and color location; as well as the resulting wood fiber materials and their use.
  • wood fiber materials e.g. Wood pulp and pulp understood.
  • the bleaching required to increase the degree of whiteness is an essential process step which determines the quality of the pulp and thus also of the finished product.
  • Lignins, lignin-like phenols and extract substances as well as their breakdown products are mainly responsible for the brownish-yellow color of the unbleached wood pulp. All of these compounds form chromophoric systems due to the presence of conjugated double bonds and auxochromic groups.
  • wood fiber materials also have a more or less strong yellowness index. If you want to reduce a yellow tinge of wood fiber to get to the required color locus, you have to add a blue dye, with a red tint a greenish-blue dye etc. By adding such dyes there is a certain decrease in the degree of whiteness, but above all a very sharp drop in brightness.
  • the invention now relates to a process for improving the whiteness, brightness and color locus of wood fiber materials or their mixtures by adding water-soluble phthalocyanines as photoactivators.
  • the photoactivator or a mixture of photoactivators is preferably used, optionally in the presence of further auxiliaries, such as surface-active auxiliaries, e.g. Dodecyl sulfate, complexing agents, e.g. Phosphates and fillers, e.g. Zeolites, as well as the fibrous materials or their mixtures, mixed intensively with water.
  • auxiliaries such as surface-active auxiliaries, e.g. Dodecyl sulfate, complexing agents, e.g. Phosphates and fillers, e.g. Zeolites, as well as the fibrous materials or their mixtures, mixed intensively with water.
  • Mixing is preferably carried out intensively at 10 to 90 ° C. and particularly preferably at 20 to 85 ° C. for more than half an hour, preferably for 1 to 4 hours, in order to obtain thorough mixing with the oxygen in the air.
  • the pH of the suspension is preferably from 7.0 to 11.
  • the mixing can be carried out
  • the proportion of photoactivator is generally 0.0001 to 0.1% and preferably 0.0005 to 0.03%, based on the amount of wood fiber used.
  • the suspension of the catalytically bleached wood fiber materials obtained in this way can then be dried, but, in this form, can also be processed immediately.
  • An additional advantage of the method according to the invention lies in the improved strength of the bleached fiber materials.
  • the catalytic sequence of the process is also advantageous, the photoactivator (catalyst), due to its remaining in the wood fiber materials, from yellowing again prevented. So it makes sense to combine the photoactivators with conventional bleaching processes.
  • the photoactivators can be added before, during or after the conventional bleaching process. For practical reasons, bleach and photoactivator are preferably used simultaneously.
  • the wood fiber materials bleached by the process according to the invention accordingly not only have an improvement in whiteness, brightness and color locus, but also a lower tendency to yellowing and an improved strength.
  • the water-soluble phthalocyanines such as e.g. the phthalocyanine metal complexes of aluminum, zinc, manganese, magnesium, calcium, iron, sodium or potassium are used. These compounds can be used individually or as mixtures.
  • the photoactivators used and their preparation are generally known and are used in part in the bleaching of textiles (GB-A-1 372 036, US-A-3 927 967, DE-A-2 613 936, DE-A-2 812 278) used. In contrast to those described there
  • the wood fiber materials that can be used in this process are e.g. Pulp, wood pulp, waste paper or their mixtures.
  • wood pulp are cut (GW), pressure cut (PGW), refiner (RMP), thermomechanical (TMP) and chemical thermomechanical (CTMP).
  • the invention further relates to the wood fiber materials and their mixtures treated with the method according to the invention, and to their use in the pulp industry and in particular in paper production.
  • the invention also relates to the papers produced from the wood fiber materials treated with the process according to the invention.
  • the wood fiber materials and their mixtures obtained in this way are used in the pulp and especially in the paper industry. You can do this with other components such as optical brighteners; Binders such as latex, acrylic acid or styrene polymers or their copolymers; Fillers and other auxiliaries such as polyethylene glycol or glycol ethers can be mixed.
  • otro refers to the dry weight of the fiber in grams.
  • a quantity of the fibrous material specified in Table 1 is weighed into a 1 liter polyethylene screw-top bottle, which corresponds to 3.0 otro (56.6 g A; 200 g B). After adding 500 ml of dist.
  • the other auxiliaries according to Table 1 are metered into water and, if necessary, the pH is adjusted with sodium hydroxide solution.
  • the screw-top bottles are closed and the mixtures (with the exception of the zero tests) are shaken vigorously for one hour on a shaker.
  • a pH of 6.0 is set, if indicated, with sulfuric acid.
  • Paper sheets are produced from the mixtures after dilution to 3l (experiments 1-8) or 7l (experiments 9-20) on the Rapid-Köthen sheet former and after drying (7 min. At 95 ° C) the whiteness, with a Device that meets the requirements of DIN 53145 Part 1.
  • the corresponding manganese compound can also be used.
  • Table 2 Experiment No. 1 day after production 4 weeks without light 5 days of sunlight 10 days of sunlight Difference 1 day - 10 days 1 66.80 66.20 64.80 63.25 3.55 2nd 67.90 67.70 66.35 65.75 2.15 4th 67.85 - 65.70 64.65 3.2 7 67.86 - 65.90 65.10 2.76 11 68.01 68.00 66.55 65.20 2.81 14 88.2 86.6 86.5 1.7 16 88.7 87.7 87.4 1.3 19th 88.9 87.6 87.4 1.5
  • Bag bleaching is carried out with 50 otro wood pulp (SGW) (consistency approx. 20%).
  • SGW otro wood pulp
  • the wood pulp is sprayed with the chemicals listed in Table 3 with constant mixing at 70 ° C from a spray bottle for 2 hours at pH 7.5.
  • the amount of the respective fiber material is weighed into a 1 liter polyethylene bottle, which corresponds to 6.0 otro (30.2 g A; 30.7 g B). After adding 800 ml of dist. The auxiliaries are metered into water in accordance with the amounts given in Table 4. The mixtures obtained are stirred vigorously at room temperature for about 4 hours (except for zero tests).
  • Paper sheets are formed from the mixtures on the Rapid-Köthen sheet former and, after drying (7 minutes at 95 ° C), the degree of whiteness is determined using a device that meets the requirements of DIN 53145 Part 1.
  • Table 4 Experiment No. Fiber Photoactivator [ml 0.1% solution] Rawesol® [% based on otro] Whiteness [%] (2) (3) 1 A - - - 60.4 2nd B - - - 60.8 3rd A 0.5 - - 60.8 4th A 1.0 - - 63.0 5 A 1.5 - - 63.4 6 A 1.0 - 0.2 63.4 7 A - 1.0 - 63.7 8th A - 2.0 - 63.5 9 B 0.5 - - 62.5 10th B 1.0 - - 62.0 11 B 1.0 - 0.2 62.3 12th B - 1.0 - 62.2
  • Fibrous A thermomechanical wood pulp with a dry matter content of 19.9%
  • Fibrous material B waste paper with a dry matter content of 19.5%
  • thermomechanical wood pulp (TMP) for coating base paper (consistency approx. 6%) is taken directly from industrial production and the photoactivator (2) according to table 5 is added. Each batch is made with 20 g otro thermomechanical wood pulp (TMP) at 3% consistency with constant stirring at 55 ° C.
  • Pulp samples or plates are soaked in a 0.001% solution of compound (2) for about 5 minutes and then dried at room temperature and daylight.
  • Bag bleaching is carried out with 50 otro wood pulp (TMP) each.
  • TMP otro wood pulp
  • the wood pulp is sprayed with the bleaching solution from a spray bottle with the chemicals specified in Table 3, with constant mixing.
  • the mixture is acidified to a pH of about 7 with sulfuric acid and 80 mg of compound (2) are added per kg of wood pulp.
  • the wood pulp is diluted to 3% at a pH of 8.5.
  • Paper sheets are formed from the mixtures on the Rapid-Köthen sheet former and after drying (7 min. At 95 ° C) the degree of whiteness is determined using a device that meets the requirements of DIN 53145 Part 1.
  • the strength test of the paper sheets is determined according to Brecht-Imset (tear propagation) DIN 53115, the tear length according to DIN 53112. Table 7: without (2) with (2) Whiteness 65.2 66.4 Light reference value 81.1 80.9 Tear length [m] 2523 3345 Tear-through work [mJ / m] 925 942

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Prostheses (AREA)
  • Endoscopes (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Claims (22)

  1. Procédé pour l'amélioration de la blancheur, de la clarté et de la couleur de fibres de bois ou de mélanges les contenant par addition de phtalocyanines jouant le rôle de photoactivateurs.
  2. Procédé conforme à la revendication 1, caractérisé en ce que le photoactivateur ou un mélange de photoactivateurs, les fibres de bois ou les mélanges les contenant ainsi qu'éventuellement d'autres composants sont mélangés avec de l'eau pour donner une suspension auqueuse.
  3. Procédé conforme à la revendication 2, caractérisé en ce que le pH de la suspension est compris entre 7,0 et 11.
  4. Procédé conforme à la revendication 2, caractérisé en ce que l'on mélange vigoureusement pendant plus d'une demi-heure.
  5. Procédé conforme à la revendication 4, caractérisé en ce que l'on mélange vigoureusement pendant 1 à 4 heures.
  6. Procédé conforme à une des revendications 2 à 5, caractérisé en ce que l'on mélange vigoureusement à une température comprise entre 10 et 90 °C.
  7. Procédé conforme à la revendication 6, caractérisé en ce que l'on mélange vigoureusement à une température comprise entre 20 et 85 °C.
  8. Procédé conforme à la revendication 1, caractérisé en ce que la teneur en photoactivateur est comprise entre 0,0001 et 0,1 % par rapport à la quantité de matière fibreuse utilisée.
  9. Procédé conforme à la revendication 8, caractérisé en ce que la teneur en photoactivateur est comprise entre 0,0005 et 0,03 % par rapport à la quantité de matière fibreuse utilisée.
  10. Procédé conforme à la revendication 1, caractérisé en ce que l'on utilise comme complexe phtalocyanine-métal un complexe d'aluminium, de zinc, de magnésium, de calcium, de fer, de sodium ou de potassium.
  11. Procédé conforme à la revendication 1, caractérisé en ce que l'on utilise le complexe phtalocyanine-manganèse.
  12. Procédé conforme à la revendication 10, caractérisé en ce que l'on utilise un ou plusieurs composé(s) de formule (1)
    Figure imgb0010
    dans laquelle
    MePC représente le système cyclique phtalocyanine-aluminium ou phtalocyanine-zinc,
    Y représente un atome d'hydrogène, un métal alcalin ou un groupe ammonium,
    v est n'importe quel nombre entre 1 et 4,
    R représente un atome de fluor, de chlore, de brome ou d'iode,
    x est un nombre quelconque compris entre 0 et 8.
  13. Procédé conforme à la revendication 11, caractérisé en ce que l'on utilise un ou plusieurs composé(s) de formule (1)
    Figure imgb0011
    dans laquelle
    MePC représente le système cyclique phtalocyanine-manganèse,
    Y représente un atome d'hydrogène, un métal alcalin ou un groupe ammonium,
    v est n'importe quel nombre entre 1 et 4,
    R représente un atome de fluor, de chlore, de brome ou d'iode,
    x est un nombre quelconque compris entre 0 et 8.
  14. Procédé conforme à la revendication 12 ou 13, caractérisé en ce que l'on utilise un ou plusieurs composés de formule (1), où
    Y représente un atome d'hydrogène, un atome de potassium ou de sodium,
    v est n'importe quel nombre entre 2 et 4,
    R représente un atome de chlore ou de brome,
    x est un nombre compris entre 0 et 2.
  15. Procédé conforme à la revendication 14, caractérisé en ce que l'on utilise un ou plusieurs composés de formule (1) dans lesquels MePC représente le système cyclique phtalocyanine-aluminium ou phtalocyanine-zinc et x est n'importe quel nombre compris entre 0,8 et 2.
  16. Procédé conforme à la revendication 1, caractérisé en ce que l'on utilise comme fibres de bois, de la cellulose, de la pâte de bois, du papier recyclé ou des mélanges les contenant.
  17. Fibres de bois préparées selon une des revendications 1 à 16 ainsi que des mélanges les contenant.
  18. Utilisation des fibres de bois conformes à la revendication 17 ainsi que des mélanges les contenant dans l'industrie de la cellulose.
  19. Utilisation des fibres de bois conformes à la revendication 17 ainsi que des mélanges les contenant pour la fabrication de papier.
  20. Papiers à bois préparés à partir des fibres de bois conformément aux revendications 1 à 16.
  21. Procédé conforme à une quelconque des revendications 1 à 16, caractérisé en ce que l'on ajoute les photoactivateurs avant, pendant ou après l'étape de blanchiment habituelle.
  22. Procédé conforme à une quelconque des revendications 1 à 16, caractérisé en ce que l'on ajoute un azurant optique avant, pendant ou après addition des photoactivateurs.
EP93810632A 1992-09-14 1993-09-06 Procédé pur améliorer la blancheur, la clarté et la couleur de matières fibreuses en bois Expired - Lifetime EP0588767B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4230655 1992-09-14
DE4230655A DE4230655A1 (de) 1992-09-14 1992-09-14 Verfahren zur Verbesserung von Weißgrad, Helligkeit und Farbort von Faserstoffen

Publications (2)

Publication Number Publication Date
EP0588767A1 EP0588767A1 (fr) 1994-03-23
EP0588767B1 true EP0588767B1 (fr) 1996-06-12

Family

ID=6467877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810632A Expired - Lifetime EP0588767B1 (fr) 1992-09-14 1993-09-06 Procédé pur améliorer la blancheur, la clarté et la couleur de matières fibreuses en bois

Country Status (11)

Country Link
US (1) US5482514A (fr)
EP (1) EP0588767B1 (fr)
JP (1) JPH06207391A (fr)
AT (1) ATE139280T1 (fr)
AU (1) AU661195B2 (fr)
BR (1) BR9303764A (fr)
CA (1) CA2105922A1 (fr)
DE (2) DE4230655A1 (fr)
ES (1) ES2089777T3 (fr)
FI (1) FI933991A (fr)
MX (1) MX9305598A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19916078A1 (de) * 1999-04-09 2000-10-12 Jorax Labor Fuer Chemische Und Verfahren zur Verbesserung von Weißgrad, Helligkeit und Farbort von Faserstoffen, von anorganischen Füllstoffen und Pigmenten sowie von Bindemitteln für die Papierherstellung
DE102007036376A1 (de) * 2007-07-31 2009-02-05 Voith Patent Gmbh Gebleichter Faserstoff

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9808577A (pt) * 1997-01-24 2000-05-02 Procter & Gamble Geradores de oxigênio singleto tendo melhorado efeito de átomo pesado.
ATE237668T1 (de) * 1997-01-24 2003-05-15 Univ Case Western Reserve Photobleichzusammensetzungen enthaltend gemischte metallocyanine
WO2000052101A1 (fr) * 1999-03-05 2000-09-08 Case Western Reserve University Composition comprenant un agent photo-oxydant et utilisations de cet agent
US6030443A (en) * 1999-04-29 2000-02-29 Hercules Incorporated Paper coating composition with improved optical brightener carriers
FR2804446B1 (fr) * 2000-02-02 2003-01-17 Atofina Procede de blanchiment de pates desencrees et/ou recyclees
US6893473B2 (en) * 2002-05-07 2005-05-17 Weyerhaeuser.Company Whitened fluff pulp
FR2842200B1 (fr) * 2002-07-12 2005-12-16 Centre Nat Rech Scient Procede pour l'obtention de polysaccharides modifies
WO2004022693A1 (fr) * 2002-09-04 2004-03-18 Ciba Specialty Chemicals Holding Inc. Formulations comprenant des granules hydrosolubles
FI117439B (fi) * 2003-12-23 2006-10-13 Valtion Teknillinen Menetelmä kuitukoostumuksen valmistamiseksi
FI121892B (fi) * 2003-12-23 2011-05-31 Teknologian Tutkimuskeskus Vtt Menetelmä kuituyhdistelmätuotteiden valmistamiseksi
FI122175B (fi) * 2003-12-23 2011-09-30 Teknologian Tutkimuskeskus Vtt Menetelmä kuitutuotteen valmistamiseksi
US20050217809A1 (en) * 2004-03-31 2005-10-06 Weyerhaeuser Company Bleached crosslinked cellulosic fibers having high color and related methods
US20050217811A1 (en) * 2004-03-31 2005-10-06 Weyerhaeuser Company Whitened crosslinked cellulosic fibers and related methods
US7638016B2 (en) * 2005-02-19 2009-12-29 International Paper Company Method for treating kraft pulp with optical brighteners after chlorine bleaching to increase brightness
EP1848856A1 (fr) * 2005-02-19 2007-10-31 International Paper Company Fixation d'agents de blanchiment optique sur une fibre destinee a la fabrication de papier
US7682438B2 (en) 2005-11-01 2010-03-23 International Paper Company Paper substrate having enhanced print density
DE602006007388D1 (de) * 2006-01-26 2009-07-30 Clariant Finance Bvi Ltd Verfahren zur herstellung von optisch aufgehelltem papier
US7622022B2 (en) 2006-06-01 2009-11-24 Benny J Skaggs Surface treatment of substrate or paper/paperboard products using optical brightening agent
US7967948B2 (en) * 2006-06-02 2011-06-28 International Paper Company Process for non-chlorine oxidative bleaching of mechanical pulp in the presence of optical brightening agents
US20070284425A1 (en) * 2006-06-13 2007-12-13 John Raymond Garvey Blank and gable top carton thereof
CN101855401B (zh) * 2007-04-05 2013-01-02 阿克佐诺贝尔股份有限公司 提高纸的光学性能的方法
WO2008144074A1 (fr) * 2007-05-21 2008-11-27 International Paper Company Feuille d'enregistrement présentant une résistance à l'eau de l'image, une résistance superficielle et un comportement améliorés
WO2009085308A2 (fr) 2007-12-26 2009-07-09 International Paper Company Substrat de papier contenant un agent mouillant et présentant une marbrure d'impression améliorée
WO2010039996A1 (fr) * 2008-10-01 2010-04-08 International Paper Company Substrat de papier contenant un agent mouillant et présentant une imprimabilité améliorée
US20130189457A1 (en) 2012-01-23 2013-07-25 International Paper Company SEPARATED TREATMENT OF PAPER SUBSTRATE WITH MULTIVALENT METAL SALTS AND OBAs
CN108138447A (zh) 2015-08-14 2018-06-08 巴斯夫欧洲公司 用于纸和纸板的含水表面处理组合物

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT32159B (de) * 1906-03-17 1908-03-10 Hoechst Ag Verfahren zum Färben der Papiermasse im Holländer.
DE658703C (de) * 1933-10-04 1938-04-09 Uddeholms Ab Verfahren zur Behandlung von Faserstoffen
CH466507A (de) * 1965-12-31 1968-12-15 Ciba Geigy Optische Aufheller enthaltende Zahnpflegemittel
US3479349A (en) * 1967-08-03 1969-11-18 Geigy Chem Corp Polysulfonated bis-s-triazinylamino-stilbene-2,2'-disulfonic acids
CH554848A (de) * 1967-10-03 1974-10-15 Ciba Geigy Ag Verfahren zur herstellung neuer stilben-derivate.
DE1921309A1 (de) * 1968-04-26 1969-11-13 Geigy Ag J R Asymmetrisch substituierte Bis-triazinylaminostilbenverbindungen
CH533670A (de) * 1968-12-05 1973-02-15 Ciba Geigy Ag Optische Aufhellmittel enthaltende anorganische Weisspigmente
DE2151727A1 (de) * 1970-10-20 1972-04-27 Nasa Verfahren zur Stabilisierung von Pigmenten gegen eine Degradation durch Bestrahlung
CH564529A5 (fr) * 1970-11-12 1975-07-31 Ciba Geigy Ag
GB1408144A (en) * 1972-06-02 1975-10-01 Procter & Gamble Ltd Bleaching process
US3960589A (en) * 1971-10-13 1976-06-01 Stanford Research Institute Stabilized pigment and method for producing the same
JPS5119042B2 (fr) * 1971-11-15 1976-06-15
GB1372036A (en) * 1972-05-26 1974-10-30 Procter & Gamble Ltd Washing machine
JPS5138992B2 (fr) * 1972-05-31 1976-10-25
GB1394910A (en) * 1972-10-23 1975-05-21 Pluss Stauffer Ag Process for the optical brightening of minerals
US3883331A (en) * 1973-01-08 1975-05-13 Dover Corp Filter, particularly for smoke solids filtration
US3948828A (en) * 1973-04-13 1976-04-06 Ciba-Geigy Corporation Liquid to pasty dyestuff preparations
DE2434468A1 (de) * 1974-07-18 1976-01-29 Bayer Ag Verfahren und vorrichtung zum impraegnieren und trocknen von textilmaterialien.
GB1537512A (en) * 1976-04-07 1978-12-29 Ass Portland Cement Method for the production of ultrafine chalk
US4227880A (en) * 1977-04-18 1980-10-14 Ciba-Geigy Corporation Process for the production of dustfree granules of dyes and optical brighteners
IN153407B (fr) * 1979-09-28 1984-07-14 Ciba Geigy Ag
DE2943652C2 (de) * 1979-10-29 1985-12-12 Plüss-Staufer AG, Oftringen, Aargau Mineralischer Füllstoff in Form von natürlichem Calciumcarbonat
GR71714B (fr) * 1979-11-09 1983-06-21 Colgate Palmolive Co
US4294654A (en) * 1980-03-21 1981-10-13 International Paper Company Delignification and bleaching of lignocellulosic pulp via photo-oxygenation
GB2082195A (en) * 1980-07-22 1982-03-03 Showa Kagaku Kogyo Kk Colour Salts and Optically Brightening Compositions Containing the Same
SU958454A1 (ru) * 1981-02-02 1982-09-15 Предприятие П/Я А-7850 Состав синьки
SU1232719A1 (ru) * 1982-02-26 1986-05-23 Ленинградская Ордена Ленина Лесотехническая Академия Им.С.М.Кирова Светостабилизатор древесной массы
SU1079717A1 (ru) * 1982-07-19 1984-03-15 Ленинградская лесотехническая академия им.С.М.Кирова Светостабилизатор древесной массы и целлюлозы
FR2539424B1 (fr) * 1983-01-13 1986-11-07 Sandoz Sa Nouvelles phtalocyanines, leur preparation et leur utilisation comme colorants
DE3400161A1 (de) * 1983-01-13 1984-07-19 Sandoz-Patent-GmbH, 7850 Lörrach Phthalocyaninverbindungen, deren herstellung und verwendung
SU1097717A1 (ru) * 1983-02-16 1984-06-15 Вильнюсский Ордена Трудового Красного Знамени И Ордена Дружбы Народов Государственный Университет Им.В.Капсукаса Электролит дл осаждени сплава серебро-медь
CH654121A5 (de) * 1983-03-25 1986-01-31 Ciba Geigy Ag Verfahren zur herstellung von festen photoaktivatorpraeparaten.
IT1180236B (it) * 1983-09-30 1987-09-23 Melamine Chemicals Inc Procedimento migliorato per produrre pasta di legno impiegando un additivo di s-triazina e una pasta di legno e una carta migliorata contenente una s-triazina
CS249337B1 (en) * 1984-12-03 1987-03-12 Karel Vesely Power filler for plastics
SU1305227A1 (ru) * 1985-12-03 1987-04-23 Сибирский научно-исследовательский институт целлюлозы и картона Способ отбелки целлюлозы
DE3626777A1 (de) * 1986-08-07 1988-02-11 Basf Ag Verstaerkte thermoplastische formmassen mit heller einfaerbung
ES2045106T3 (es) * 1987-03-17 1994-01-16 Procter & Gamble Composiciones de blanqueo.
GB8806016D0 (en) * 1988-03-14 1988-04-13 Danochemo As Encapsulated photoactivator dyes for detergent use
US5232535A (en) * 1989-02-23 1993-08-03 Anthony Industries, Inc. Process for preparing embossed, coated paper
JPH0617217B2 (ja) * 1989-02-28 1994-03-09 水澤化学工業株式会社 非晶質シリカ・アルミナ系球状粒子及びその製法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19916078A1 (de) * 1999-04-09 2000-10-12 Jorax Labor Fuer Chemische Und Verfahren zur Verbesserung von Weißgrad, Helligkeit und Farbort von Faserstoffen, von anorganischen Füllstoffen und Pigmenten sowie von Bindemitteln für die Papierherstellung
DE102007036376A1 (de) * 2007-07-31 2009-02-05 Voith Patent Gmbh Gebleichter Faserstoff

Also Published As

Publication number Publication date
DE4230655A1 (de) 1994-03-17
AU4731293A (en) 1994-03-24
MX9305598A (es) 1994-03-31
JPH06207391A (ja) 1994-07-26
FI933991A (fi) 1994-03-15
CA2105922A1 (fr) 1994-03-15
EP0588767A1 (fr) 1994-03-23
AU661195B2 (en) 1995-07-13
DE59302896D1 (de) 1996-07-18
FI933991A0 (fi) 1993-09-10
ATE139280T1 (de) 1996-06-15
BR9303764A (pt) 1994-04-26
ES2089777T3 (es) 1996-10-01
US5482514A (en) 1996-01-09

Similar Documents

Publication Publication Date Title
EP0588767B1 (fr) Procédé pur améliorer la blancheur, la clarté et la couleur de matières fibreuses en bois
EP0588768B1 (fr) Procédé d'amélioration du degré de blancheur, de l'éclat et du lieu de couleur de matières de charge et de pigments
DE2640027C2 (fr)
DE2219504A1 (de) Mehrstufenbleiche von zellstoffen mit erheblich reduziertem chloreinsatz
DE3302580C2 (fr)
EP0171575A1 (fr) Procédé de délignification et blanchiment de pâtes cellulosiques
EP0087553B1 (fr) Procédé de fabrication de pâtes cellulosiques semi-blanchies
DE3544398A1 (de) Verfahren zur bleiche und delignifizierung von zellstoffhaltigen produkten
DE602004002934T2 (de) Bleichen und Helligkeitsstabilisierung von Lignocellulosematerialien mit wasserlöslichen Phosphin- oder Phosphoniumverbindungen
DE3739655A1 (de) Bleichmittelzusatz
DE60114005T2 (de) Fluoreszierende aufhellerpigmentzusammensetzungen
DE19916078A1 (de) Verfahren zur Verbesserung von Weißgrad, Helligkeit und Farbort von Faserstoffen, von anorganischen Füllstoffen und Pigmenten sowie von Bindemitteln für die Papierherstellung
DE69917692T2 (de) Verfahren zum Bleichen von Pigmenten
DE3009473B2 (de) Natriumhydrosulfitzusammensetzung
DE2124325C3 (de) Verfahren zum Bleichen von chemischen Holzzellstoff
DE931690C (de) Verfahren zum Bleichen von Holzschliff und anderem mechanisch erzeugtem Fasermaterial
DE602004011911T9 (de) Aktivator zum Zellstoffbleichen
DE3436015C2 (fr)
DE2754949C3 (de) Verfahren zur Behandlung von Lignocellulose enthaltendem Material
DE69810663T2 (de) Zusammensetzung zum bleichen von mechanischer pulpe
DE818344C (de) Verfahren zur Herstellung von Acylderivaten der 4, 4'-Diaminostilben-2, 2'-disulfonsaeure
DE3616816A1 (de) Verfahren zum entfaerben von in der masse gefaerbten papieren und selbstdurchschreibepapieren
DE654991C (de) Verfahren zum Bleichen von durch alkalischen Aufschluss gewonnenem Zellstoff
EP0379858A2 (fr) Procédé de blanchiment de matière fibreuse pour la fabrication de papier
DE3037718C2 (fr)

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

AK Designated contracting states

Kind code of ref document: A1

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

17P Request for examination filed

Effective date: 19940819

17Q First examination report despatched

Effective date: 19950719

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 139280

Country of ref document: AT

Date of ref document: 19960615

Kind code of ref document: T

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: BA2A

Ref document number: 2089777

Country of ref document: ES

Kind code of ref document: T3

REF Corresponds to:

Ref document number: 59302896

Country of ref document: DE

Date of ref document: 19960718

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960828

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2089777

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: CIBA-GEIGY AG TRANSFER- CIBA SC HOLDING AG

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2089777

Country of ref document: ES

Kind code of ref document: T3

BECN Be: change of holder's name

Effective date: 19961129

NLS Nl: assignments of ep-patents

Owner name: CIBA SC HOLDING AG

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: CIBA SC HOLDING AG TRANSFER- CIBA SPECIALTY CHEMICALS HOLDING INC.

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: CIBA SPECIALTY CHEMICALS HOLDING INC.

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: CIBA SPECIALTY CHEMICALS HOLDING INC. TRANSFER- JO

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: JORAX GMBH TRANSFER- JORAX LABOR FUER CHEMISCHE UND PHYSIKALISCHE PAPIERUNTERSUCHUNGEN GMBH

Ref country code: CH

Ref legal event code: NV

Representative=s name: KELLER & PARTNER PATENTANWAELTE AG

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

Ref country code: FR

Payment date: 19990616

Year of fee payment: 7

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

Ref country code: SE

Payment date: 19990705

Year of fee payment: 7

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

Ref country code: GB

Payment date: 19990903

Year of fee payment: 7

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

Ref country code: ES

Payment date: 19990910

Year of fee payment: 7

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

Ref country code: CH

Payment date: 19990924

Year of fee payment: 7

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

Ref country code: NL

Payment date: 19990930

Year of fee payment: 7

Ref country code: AT

Payment date: 19990930

Year of fee payment: 7

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

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

Ref country code: BE

Payment date: 19991119

Year of fee payment: 7

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000906

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000906

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000907

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

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20000929

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000930

BERE Be: lapsed

Owner name: JORAX LABOR FUER CHEMISCHE UND PHYSIKALISCHE PAPIE

Effective date: 20000930

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010401

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000906

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 93810632.5

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010531

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20010401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: DE

Payment date: 20010717

Year of fee payment: 9

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030401

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20011011

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050906