EP0261316A1 - Procédé de fabrication de papiers résistants au jaunissement en particulier en présence de l'action de la chaleur - Google Patents

Procédé de fabrication de papiers résistants au jaunissement en particulier en présence de l'action de la chaleur Download PDF

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Publication number
EP0261316A1
EP0261316A1 EP87108897A EP87108897A EP0261316A1 EP 0261316 A1 EP0261316 A1 EP 0261316A1 EP 87108897 A EP87108897 A EP 87108897A EP 87108897 A EP87108897 A EP 87108897A EP 0261316 A1 EP0261316 A1 EP 0261316A1
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EP
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Prior art keywords
yellowing
paper
pulp
heat
weakly
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
EP87108897A
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German (de)
English (en)
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EP0261316B1 (fr
Inventor
Bernd Dr.-Ing. Reinhardt
Ulrik Dipl.-Ing. Arneberg
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.)
Kammerer GmbH
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Kammerer GmbH
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Application filed by Kammerer GmbH filed Critical Kammerer GmbH
Priority to AT87108897T priority Critical patent/ATE56768T1/de
Publication of EP0261316A1 publication Critical patent/EP0261316A1/fr
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Publication of EP0261316B1 publication Critical patent/EP0261316B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04—Kraft or sulfate 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • 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

Definitions

  • the invention relates to a process for the production of paper webs consisting of special pulps, fillers and chemical auxiliaries, which are additionally provided with a surface application which contains additives of strongly hygroscopic substances.
  • the yellowing of paper is usually accelerated in the laboratory using mostly high-energy UV radiation and / or temperature.
  • the usual treatment temperatures are between 70 and 130 ° C, a defined relative humidity was often used at lower temperatures.
  • the duration of exposure to the test medium is between 4 and 168 hours ("Zellstoff undmaschine" (1976) 6, page 166-170).
  • N. Minemura in the Japanese journal "Mokuzai Gakaishi” (1978) 8, pp. 587-588, describes the advantage of surface treatment of wood pulp with an aqueous solution of polyethylene glycols with a molecular weight of 4,000 to largely control the light-induced yellowing.
  • a whiteness drop of approx. 3% absolute was achieved after 100 h of UV radiation compared to a whiteness drop of approx. 13% with untreated wood sanding.
  • DE-OS 17 61 775 also recommends the use of polyethylene glycols with molecular weights between 1000 and 6000, preferably between 2000 and 4000, for the production of heat-resistant sterilization and baking paper.
  • polyethylene glycols with molecular weights between 1000 and 6000, preferably between 2000 and 4000, for the production of heat-resistant sterilization and baking paper.
  • the aim was to reduce the strength properties at a temperature of 180 to 200 ° C. within 40 to 60 minutes.
  • the special papers are impregnated with aqueous solutions of polyethylene glycols.
  • the object of the present invention is therefore to produce a yellowing-resistant paper, in particular against practical temperature effects, which does not have the disadvantages of the previously used carrier papers made from bleached cellulose, i.e. H. that the drop in whiteness due to heat, temperatures above 140 ° C to 250 ° C, preferably above 200 ° C, act on the paper within a relatively short time, preferably less than 1 minute, largely suppressed and / or extensive regeneration of the initial whiteness by suitable Substance formulation is made possible.
  • a polyethylene glycol with a molecular weight below 1000, preferably between 100 and 500, is used. This is the only way to produce yellowing-resistant papers with regard to the effects of heat, which additionally have excellent whiteness regeneration after exposure to heat.
  • stepcial papers including decorative raw, release raw and wallpaper raw papers, however, when coating with special plastics and drying them, significantly higher temperatures than 130 ° C act on the material within a relatively short time, usually under one minute.
  • the paper coated with foamable PVC pastes is dried in the production of foam wallpapers at temperatures above 200 ° C. in about 45 to 60 seconds.
  • the production of the base paper in the pH range from 5 to 10, preferably 6.5 to 9.5, with the addition of nonionic, weakly anionic or weakly cationic retention agents based on polyacrylamides or weakly, has proven particularly advantageous in the sense of the invention cationic retention agents based on polyamide amines or polyethyleneimines, formaldehyde-free wet strength agents based on polyamidamine-epichlorohydrin resins and weakly cationic sizing agents based on diketene dimers in customary known amounts, based on the Pulp, to achieve its optimal effect as a chemical aid.
  • further sizing agents such as special resin sizes for the acidic to weakly alkaline pH range, or sizing agents, preferably for the neutral to alkaline pH range, e.g. B. on the basis of succinic anhydrides, polyurethanes, maleic anhydrides or acrylic acid esters.
  • customary white pigments such as, for. B. calcium carbonate, kaolin or titanium dioxide in proportions of 5 to 40%, preferably 20 to 30%, based on pulp, are added.
  • Chemical auxiliaries based on polyethylene glycols with a molecular weight come as highly hygroscopic additives less than 1000, preferably between 100 and 500, glycerol, glycol, sorbitol or glucose or hygroscopic salts, such as chlorinated calcium, chlorinated magnesium, potassium or sodium lactate.
  • the addition of polyethylene glycol has proven to be particularly advantageous in the sense of the invention, the amount of 0.5 to 8 g / m2 (calculated), preferably 1 to 5 g / m2, either in combination with conventional surface sizing agents, such as.
  • polyurethanes maleic anhydrides or acrylic acid esters
  • the proportion of polyethylene glycol can be between 5 to 100%, preferably 50 to 100% of the total amount of the unpigmented coating.
  • Known coating units such as, for. B. roller (including size press) or air brush applicator, which are preferably installed within the paper machine, are used.
  • a pigmented coating of the paper is used for additional considerations, such as improved printability, improved surface imperviousness to water and / or solvents or the like.
  • polyethylene glycol in proportions of 5 to 100%, preferably 10 to 60%, based on the amount of binder used in known coating slip formulations, has also proven to be advantageous according to the invention.
  • Known coating compositions are pigment-binder systems with z. B. kaolin and / or calcium carbonate as a coating pigment and z. B.
  • binders based on aqueous copolymer dispersions of acrylic acid, acrylic acid ester, acrylonitrile, vinyl acetate, butadiene and styrene alone or in combination with natural binders, such as modified starches or carboxymethyl cellulose.
  • Known coating units such as, for. B. roller (including glue press) or doctor blade applicators, such as knife or roller doctor blade applicators, can be used.
  • the paper produced according to the invention and provided with an additional surface application has a high resistance to yellowing, preferably to relatively strong temperature effects and good whiteness regeneration after exposure to heat, and is particularly suitable as a backing material for special wallpapers with, above all, non-full-surface PVC foam application, reusable release papers for synthetic leather webs or for other uncoated or coated special papers that are exposed to particularly high temperatures during their further processing.
  • a base paper of different cellulose composition and texture was produced: 75% pine sulfate pulp 25% eucalyptus pulp or birch sulfate pulp Freeness 35 ° SR (Schopper-Riegler) pH 8.5
  • the papers were then subjected to a constant practical heat treatment of 220 ° C for 42 s in a special laboratory dryer of the LTF type from Werner Mathis AG / Niederhasli.
  • the above Laboratory dryers allow the test material attached to a support frame to be fed directly into the drying tunnel, thus precisely maintaining the selected temperature.
  • the heat-induced paper yellowing was recorded as the yellowing factor VF.
  • the degree of whiteness was calculated according to ASTM method E 313-73 on the basis of a color difference formula using a known Hunterlab color measuring device.
  • a lower yellowing factor therefore means greater resistance to yellowing.
  • the wet strength agents also deteriorate the yellowing resistance of the papers. If the use of formaldehyde-free wet strength agents in paper cannot be avoided due to additional quality requirements, weakly cationic wet strength agents should be used.
  • the resistance to yellowing is improved by the addition of calcium carbonate as a filler.
  • Neutralizing agents based on diketene dimers also impair the yellowing resistance of the papers. Again, the least influence is given with these chemical auxiliaries if there is only weak cation activity.
  • the papers made from pulp / auxiliary mixtures prepared according to Example 1 were subjected to irradiation with high-energy ultraviolet light (light-induced yellowing) instead of heat treatment (heat-induced yellowing) and the yellowing factor according to Example 1 was also determined.
  • the papers were UV-irradiated for 64 hours in a known "Suntest" rapid exposure table device from Quarzlampen GmbH, Hanau.
  • a high-intensity xenon emitter is installed, which in connection with a filter system emits a spectrum that is adapted to the sunlight.
  • the amount of ozone that forms is far below the MAK limit values approved by the health authority. With this device, a temporal gathering of exposure processes is possible.
  • a base paper of the following composition and quality was produced: 75% pine sulfate pulp 25% eucalyptus pulp + 20% calcium carbonate Freeness 35 ° SR pH 8.5
  • this base paper contained a weakly anionic retention agent based on polyacrylamide, a weakly cationic formaldehyde-free wet strength agent on the basis of polyamideamine-epichlorohydrin resin and a weakly cationic neutral sizing agent based on diketene dimer.
  • Example 2 2 or 5 g / m2 (calculated) of polyethylene glycol (PEG) with a molecular weight of 400 were applied to the base paper produced according to the invention in a laboratory coating system (wire doctor blade) and the papers coated in this way were subjected to a heat treatment in accordance with Example 1.
  • the respective yellowing factor (VF) was determined according to Example 1:
  • Example 2 Correlation considerations analogous to Example 2 between the results of light and heat-induced yellowing of the paper produced in accordance with Example 3 again gave no statistically reliable connection. Accordingly, the different physicochemical reaction mechanisms already assumed in Example 2 also apply to papers treated with PEG.
  • the base paper composed according to Example 3 was coated in a laboratory coating system (wire doctor blade) with a pigmented coating slip of the following composition: 100 parts (solid) calcium carbonate 10 parts (solid, calculated on pigment) acrylic acid ester copolymer dispersion + 1 or 5 parts (solid, calculated on pigment) polyethylene glycol with a molecular weight of 400
  • the line application on the base paper was constant 12 g / m2 (calculated).
  • Example 1 The papers were again subjected to a heat treatment analogous to Example 1. The respective degree of yellowing was determined according to Example 1:
  • the pigment line improves the yellowing resistance somewhat compared to the base paper.
  • the yellowing factors of the papers coated with PEG additives are slightly higher than those of the coated papers without PEG additives. This is due to the percentage lower void volume of the pigment layer, which also contain PEG additives.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Materials For Photolithography (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)
  • Glass Compositions (AREA)
EP87108897A 1986-09-19 1987-06-22 Procédé de fabrication de papiers résistants au jaunissement en particulier en présence de l'action de la chaleur Expired - Lifetime EP0261316B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108897T ATE56768T1 (de) 1986-09-19 1987-06-22 Verfahren zur herstellung vergilbungsresistenter papiere, insbesondere gegenueber hitzeeinwirkung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3631835 1986-09-19
DE19863631835 DE3631835A1 (de) 1986-09-19 1986-09-19 Verfahren zur herstellung vergilbungsresistenter papiere, insbesondere gegenueber hitzeeinwirkung

Publications (2)

Publication Number Publication Date
EP0261316A1 true EP0261316A1 (fr) 1988-03-30
EP0261316B1 EP0261316B1 (fr) 1990-09-19

Family

ID=6309885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108897A Expired - Lifetime EP0261316B1 (fr) 1986-09-19 1987-06-22 Procédé de fabrication de papiers résistants au jaunissement en particulier en présence de l'action de la chaleur

Country Status (7)

Country Link
EP (1) EP0261316B1 (fr)
AT (1) ATE56768T1 (fr)
DD (1) DD261617A5 (fr)
DE (2) DE3631835A1 (fr)
ES (1) ES2002607B3 (fr)
FI (1) FI873987A (fr)
NO (1) NO873924L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6716310B2 (en) 2001-12-31 2004-04-06 Kimberly-Clark Worldwide, Inc. Process for manufacturing a cellulosic paper product exhibiting reduced malodor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324028C1 (de) * 1993-07-17 1994-12-01 Feldmuehle Ag Stora Beidseitig gestrichenes Rollendruckpapier und Verfahren zu seiner Herstellung
US5622786A (en) * 1994-11-30 1997-04-22 Kimberly-Clark Corporation Polymer-reinforced, eucalyptus fiber-containing paper
DE10163344B4 (de) * 2001-12-21 2006-01-19 Papierfabrik Schoeller & Hoesch Gmbh & Co. Kg Lichtbeständiges Overlaypapier, Verfahren zu dessen Herstellung und Verwendung desselben

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568849A (en) * 1947-05-14 1951-09-25 Carey Philip Mfg Co Vapor barrier paper and the manufacture thereof
US2819986A (en) * 1954-07-26 1958-01-14 Fibreboard Paper Products Corp Low frictional drag coated paper products and method of preparation thereof
DE2118649A1 (en) * 1971-04-17 1972-11-02 Papierwerke Waldhof-Aschaffenburg AG., 8000 München Paper coated on one side with pvdc dispersion - contg polyethylene glycol to prevent paper rolling up
DE2949306A1 (de) * 1979-12-07 1981-06-11 Letron GmbH, 8750 Aschaffenburg Kunststoff-furnier sowie verfahren zur herstellung eines kunststoff-furnieres
US4282054A (en) * 1977-12-23 1981-08-04 Scott Paper Company Coating composition for release sheets
EP0223922A1 (fr) * 1985-11-21 1987-06-03 Kämmerer Gmbh Procédé de fabrication de feuilles de papier imprégnées avec des résines artificielles sous forme de solutions et dispersions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1761775A1 (de) * 1968-07-05 1971-10-14 Feldmuehle Ag Gegen hohe Temperatur bestaendige Flaechengebilde

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568849A (en) * 1947-05-14 1951-09-25 Carey Philip Mfg Co Vapor barrier paper and the manufacture thereof
US2819986A (en) * 1954-07-26 1958-01-14 Fibreboard Paper Products Corp Low frictional drag coated paper products and method of preparation thereof
DE2118649A1 (en) * 1971-04-17 1972-11-02 Papierwerke Waldhof-Aschaffenburg AG., 8000 München Paper coated on one side with pvdc dispersion - contg polyethylene glycol to prevent paper rolling up
US4282054A (en) * 1977-12-23 1981-08-04 Scott Paper Company Coating composition for release sheets
DE2949306A1 (de) * 1979-12-07 1981-06-11 Letron GmbH, 8750 Aschaffenburg Kunststoff-furnier sowie verfahren zur herstellung eines kunststoff-furnieres
EP0223922A1 (fr) * 1985-11-21 1987-06-03 Kämmerer Gmbh Procédé de fabrication de feuilles de papier imprégnées avec des résines artificielles sous forme de solutions et dispersions

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, Band 51, Nr. 3, September 1980, Seite 360, Zusammenfassung Nr. 3245, Appleton, Wisconsin, US; & JP-A-79 96 108 (MITSUBISHI PAPER MFG. CO. LTD) 30-07-1979 *
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, Band 53, Nr. 4, Oktober 1982, Seite 434, Zusammenfassung Nr. 3920, Appleton, Wisconsin US; P.G. SEKACHEV et al: "Substrate domestic for forming artificial leather" & Bumazh. Prom. no. 2: 18-19 (Feb. 1982) *
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, Band 55, Nr. 6, Dezember 1984, Seite 751, Zusammenfassung Nr. 7156, Appleton, Wisconsin, US; & JP-A-83 193 267 (UNITIKA) 10-11-1983 *
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, Band 55, Nr. 9, März 1985, Seite 1046, Zusammenfassung Nr. 9868, Appleton, Wisconsin, US; E.R. VALLS: "Use of polyacrylamides in paper (as) additives for increasing dry strength" & Prod. Quim. Auxil. Ind. Papelera (Curso) 1982: 139-152 (1984) *
TAPPI, Band 53, Nr. 10, Oktober 1970, Seiten 1900-1904; G.B. KELLY, Jr. et al.: "Study of polyethylene glycols as lubricants for paper coatings" *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6716310B2 (en) 2001-12-31 2004-04-06 Kimberly-Clark Worldwide, Inc. Process for manufacturing a cellulosic paper product exhibiting reduced malodor

Also Published As

Publication number Publication date
NO873924L (no) 1988-03-21
NO873924D0 (no) 1987-09-18
ATE56768T1 (de) 1990-10-15
DE3631835A1 (de) 1988-03-24
FI873987A (fi) 1988-03-20
FI873987A0 (fi) 1987-09-14
DD261617A5 (de) 1988-11-02
ES2002607A4 (es) 1988-09-01
DE3765066D1 (de) 1990-10-25
EP0261316B1 (fr) 1990-09-19
DE3631835C2 (fr) 1988-12-15
ES2002607B3 (es) 1991-02-16

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