WO2011053262A2 - Mélange destiné à la modification en une seule étape de papiers acides et procédé d'utilisation du mélange - Google Patents

Mélange destiné à la modification en une seule étape de papiers acides et procédé d'utilisation du mélange Download PDF

Info

Publication number
WO2011053262A2
WO2011053262A2 PCT/SK2010/050020 SK2010050020W WO2011053262A2 WO 2011053262 A2 WO2011053262 A2 WO 2011053262A2 SK 2010050020 W SK2010050020 W SK 2010050020W WO 2011053262 A2 WO2011053262 A2 WO 2011053262A2
Authority
WO
WIPO (PCT)
Prior art keywords
solution
mixture
modification
hydrogen carbonate
papers
Prior art date
Application number
PCT/SK2010/050020
Other languages
English (en)
Other versions
WO2011053262A3 (fr
Inventor
Bohuslava HAVLÍNOVÁ
Jarmila MINÁRIKOVÁ
Svetozár KATUŠČÁK
Alena MAKOVÁ
Original Assignee
Stu Fakulta Chemickej A Potravinárskej Technológie
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 Stu Fakulta Chemickej A Potravinárskej Technológie filed Critical Stu Fakulta Chemickej A Potravinárskej Technológie
Publication of WO2011053262A2 publication Critical patent/WO2011053262A2/fr
Publication of WO2011053262A3 publication Critical patent/WO2011053262A3/fr

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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/18—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00 of old paper as in books, documents, e.g. restoring
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/64—Alkaline compounds

Definitions

  • Present invention concerns a mixture intended for single-step modification of acidic papers, and a method of using the mixture.
  • a disadvantage of the so far deacidification methods is the fact that they are performed in several steps which is finally the reason why they are not suitable for all paper kinds.
  • the aim of the present invention is to strengthen the physical-chemical properties of acidic papers especially, the increase in the strength and strengthening of their stability against the ageing.
  • a mixture for single-step modification of acidic papers according to the present invention comprises a deacidification solution formed by a solution of magnesium hydrogen carbonate having a concentration of 0,08 to 0,12 mol/dm 3 and a solution of calcium hydrogen carbonate having a concentration of 0,008 to 0,012 mol/dm 3 in a ratio of 0,8:1 to 1 ,2:1.
  • the mixture consists further of potato starch in an amount of 12 to 18 g per 1 dm 3 of the deacidification solution and potassium iodide in an amount of 1 ,2 to 1 ,8 g per 1 dm 3 of the deacidification solution.
  • Mixture for single-step modification of acidic papers is prepared in such a way that to the deacidification solution, prepared by mixing together magnesium hydrogen carbonate solution and calcium hydrogen carbonate solution, potato starch is added and after 30 minutes of mixing at the latest potassium iodide is added.
  • Method of using the mixture for modification of acidic papers according to the present invention consists in that the acidic papers are in intervals of 15 to 25 seconds successively immersed into the modification mixture so that each paper is immersed for 17 to 25 minutes. Subsequently, the papers are removed at 15 to 25 seconds intervals from the modification mixture and then freely hung to dry and then they are to be stretched out under load and aged in a chamber at a temperature of 70 to 85 °C and 65 % of relative humidity for 56 days at most.
  • the advantage of the invention is that the papers are immersed in the solution only once, while their deacidification, strengthening and stabilization occurs, prolonging significantly their durability and thereby also their lifetime.
  • the main advantage of the mixture is the fact that although the mixture belongs to aqueous deacidifications it may be used also for books.
  • Paper NOVO(E), pre-aged, wood-pulp paper filled with aluminium sulphate, having basis weight of 90 g/m 2 and pH 5,5 , produced in Switzerland of the composition of 50 to 65 % of wood pulp, 25 to 35 % of bleached sulphite pulp and 12 to 15 % of kaolin.
  • the document "Rules of organization” (O) dated on the year 1978, wood pulp, pre-aged paper having basis weight of 70 g/m 2 and pH 4,7.
  • Historical journal (H) from the year 1900, wood pulp, pre-aged, having basis weight of 90 g/m 2 and pH 4,7.
  • Example 8 Preparation of the modification solution as well as modification procedure was the same as in Example 7 with the difference that the ageing time was 28 days.
  • modification solution 31 g of potato starch (empresol N) were added to 2 I of de-acidification solution, prepared by mixing together a solution of magnesium hydrogen carbonate of a concentration of 0,11 mol/dm 3 and a solution of calcium hydrogen carbonate of a concentration of 0,01 mol/dm 3 in a ratio of 1 ,1 :1. After 30 minutes of mixing, 3,2 g of potassium iodide were added and after stirring it up the modification mixture was used immediately.
  • Mixture according to the present invention can be utilised for modification of archival paper carriers, which occur in library collections, in archives, museums and galleries.

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Preparation Of Fruits And Vegetables (AREA)

Abstract

L'invention porte sur un mélange comprenant une solution de désacidification formée par une solution d'hydrogénocarbonate de magnésium ayant une concentration de 0,08 à 0,12 mol/dm3 et une solution d'hydrogénocarbonate de calcium ayant une concentration de 0,008 à 0,012 mol/dm3 en un rapport de 0,8:1 à 1,2:1. Le mélange comprend en outre de l'amidon de pomme de terre à hauteur de 12 à 18 g pour 1 dm3 de la solution de désacidification et de l'iodure de potassium à hauteur de 1,2 à 1,8 g pour 1 dm3 de la solution de désacidification. L'invention porte également sur un procédé d'utilisation du mélange pour la modification de papiers acides, lequel mélange est préparé par ajout d'amidon de pomme de terre à la solution de désacidification, préparée par mélange de solution d'hydrogénocarbonate de magnésium avec de la solution d'hydrogénocarbonate de calcium, et au bout de 30 minutes de mélange au maximum ajout d'iodure de potassium, lequel procédé consiste à immerger successivement les papiers acides à des intervalles de 15 à 25 secondes dans le mélange de modification afin que chaque papier soit immergé pendant 17 à 25 minutes. Par la suite, les papiers sont, à des intervalles de 15 à 25 secondes au maximum, enlevés du mélange de modification et suspendus librement et laissés pour sécher. En outre ils sont laissés pour être étirés sous une charge puis vieillis dans une chambre à une température de 70 à 85°C et une humidité relative de 65 % pendant 56 jours au maximum.
PCT/SK2010/050020 2009-11-02 2010-11-02 Mélange destiné à la modification en une seule étape de papiers acides et procédé d'utilisation du mélange WO2011053262A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SKPP5068-2009 2009-11-02
SK5068-2009A SK50682009A3 (sk) 2009-11-02 2009-11-02 Zmes určená na jednostupňovú modifikáciu kyslých papierov a spôsob použitia tejto zmesi

Publications (2)

Publication Number Publication Date
WO2011053262A2 true WO2011053262A2 (fr) 2011-05-05
WO2011053262A3 WO2011053262A3 (fr) 2011-07-14

Family

ID=43922940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SK2010/050020 WO2011053262A2 (fr) 2009-11-02 2010-11-02 Mélange destiné à la modification en une seule étape de papiers acides et procédé d'utilisation du mélange

Country Status (2)

Country Link
SK (1) SK50682009A3 (fr)
WO (1) WO2011053262A2 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898356A (en) * 1974-02-28 1975-08-05 Us Army Method of deacidifying paper
US4522843A (en) * 1984-01-25 1985-06-11 Kundrot Robert A Deacidification of library materials
US4860685A (en) * 1985-07-10 1989-08-29 Smith Richard D Treatment of cellulosic materials
ATE247192T1 (de) * 1998-02-10 2003-08-15 Oswald Bell Verfahren zur entsäuerungsbehandlung von beschrifteten oder bedruckten papiererzeugnissen
DE19921616B4 (de) * 1998-11-16 2007-06-28 Zfb Project-Management Gmbh Entsäuerungsmittel und Verfahren zur Entsäuerung von organischem Material
CA2556626A1 (fr) * 2004-02-27 2005-09-09 Conservacion De Sustratos Celulosicos S.L. Procede de conservation de materiaux cellulosiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
SK50682009A3 (sk) 2011-05-06
WO2011053262A3 (fr) 2011-07-14

Similar Documents

Publication Publication Date Title
Roberts The chemistry of paper
ES2358529T3 (es) Procedimiento para la producción de un papel y papel producido según ese procedimiento.
CA2755586C (fr) Materiaux de cellulose dotes de nouvelles proprietes
AU5345700A (en) Preparation of aldehyde modified cellulose pulp for use in paper products
Jeong et al. Deterioration of ancient cellulose paper, Hanji: evaluation of paper permanence
Bouiri et al. Elemental chlorine-free bleaching halfa pulp
JPH026683A (ja) 紙及び板紙の製造
BR112014030317B1 (pt) papel que se desintegra rapidamente em água, cigarro de filtro e processo para produzir um papel de filtro sem acetato de celulose ou um papel que involucra o filtro
BRPI0619442A2 (pt) método de produção de papel e papelão
Hu et al. Hemicellulose in pulp affects paper properties and printability
Bukovský The influence of light on ageing of newsprint paper
EP3059344B1 (fr) Procédé de fabrication de papier comprenant de la pâte à papier blanchie de manière chimique, thermique et mécanique convenant à une doublure de libération et produits et utilisations associés
Myja et al. TEMPO mediated oxidation optimization on thermomechanical pulp for paper reinforcement and nanomaterial film production
Krysztof et al. A Comparative Study of the Effect of Cellulose-based Deep Coating and Pulp Refining on the Structural and Mechanical Properties of Paper.
WO2011053262A2 (fr) Mélange destiné à la modification en une seule étape de papiers acides et procédé d'utilisation du mélange
Bouiri et al. Production of dissolving grade pulp from alfa.
Hu et al. The role of absorbed hemicelluloses on final paper properties and printability
US2033452A (en) Process for the chemical stabilization of paper and product
Jančovičová et al. Impact of stabilizing procedures on acidic paper
Henniges et al. Phytate treatment of metallo-gallate inks: Investigation of its effectiveness on model and historic paper samples
Da Costa et al. Iron-gall ink studies on acid and alkaline papers and their relation to cellulose microbiological degradation.
JP6290244B2 (ja) セルロース蒸解プロセスにおける亜ジチオン酸ナトリウムの使用
Hubbe et al. Archival performance of paper as affected by chemical components: A review
Coppola Investigations of the kinetics and effects of degradation of paper-based materials
Saukkonen Effects of the partial removal of wood hemicelluloses on the properties of kraft pulp

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10798407

Country of ref document: EP

Kind code of ref document: A2