WO2005095712A1 - Papier peint - Google Patents

Papier peint Download PDF

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Publication number
WO2005095712A1
WO2005095712A1 PCT/FI2005/050082 FI2005050082W WO2005095712A1 WO 2005095712 A1 WO2005095712 A1 WO 2005095712A1 FI 2005050082 W FI2005050082 W FI 2005050082W WO 2005095712 A1 WO2005095712 A1 WO 2005095712A1
Authority
WO
WIPO (PCT)
Prior art keywords
wallpaper
barrier layer
polyvinyl alcohol
layer
base paper
Prior art date
Application number
PCT/FI2005/050082
Other languages
English (en)
Finnish (fi)
Inventor
Maija Pitkänen
Jukka LÄHTEENMÄKI
Veli-Matti Kaukonen
Tarja Turkki
Original Assignee
M-Real Oyj
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 M-Real Oyj filed Critical M-Real Oyj
Publication of WO2005095712A1 publication Critical patent/WO2005095712A1/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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/20—Flexible structures being applied by the user, e.g. wallpaper
    • 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
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
    • 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
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/60—Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
    • 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
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed

Definitions

  • the invention relates to a wallpaper comprising a wood-fibre based base paper with a first and a second surface, and a barrier layer on the side of the first surface of the base paper.
  • This application relates to a wallpaper which is suitable for use in such a way that an adhesive, normally a size for wallpaper, is applied onto the wall to be papered, and the dry wallpaper is placed onto the adhe- sive layer.
  • This wallpapering method is called "paste-the-wall”.
  • wood-fibre based wallpapers that they expand in the width direction of the web when the paper is moistened by the adhesive.
  • the wet expansion in the width direction is a result of the fibre orientation of the web.
  • the fibres tend to be oriented in the length direction of the web.
  • the wood fibres swell in the cross direction of the fibre, wherein the web is expanded by moisture in the width direction of the web.
  • the wet expansion of wood-fibre based base papers is typically in the order of 1.5 to 2 %.
  • a non-woven fabric which comprises man-made fibres and an adhesive, such as latex. It is true that a wet expansion of about 0.2 % can be achieved with products based on a non-woven fabric, but in some respects, however, the non- woven fabric is a poor alternative. It has poor opacity, printing onto the base with an uneven surface is difficult (missing points), and recycling of the non-woven fibres comprising man-made fibres and a latex adhesive between them is difficult. The broke formed in the process of manufacturing the base paper cannot be recirculated in the manufacturing process, but it is dumped.
  • the wet expansion tendency of the wood-fibre based wallpaper can be reduced by treating the base paper with a hydrofobic adhesive or, for example, with cross-linking chemicals (by cross-linking the fibres), but even if combined, these treatments do not give a satisfactory result.
  • the adhesive used for fixing the wallpaper has a high pH value (11 or higher) and a low surface tension, the hydrofobicity cannot prevent the fast wetting of the fibres. The hydrofobic layer will be destroyed. Consequently, special demands are set on the surface treatment layers of the base paper by the low surface tension of the size for the wallpaper.
  • the wet dimensional stability of the wood-fibre based wallpaper cannot be achieved by any single treatment.
  • the dimensional stability required by the paste-the-wall papering method requires a combination of more than one layer.
  • the wallpaper must be movable on the wall during the papering (positioning) and subsequently it must have sufficient adhesion to various wall materials (stability on the wall).
  • Problems are also involved in approaches with several layers. For example, in experiments with several porous and sealing coating layers under the barrier layer, good dimensional stability was achieved with a high content of latex in the coating, but the wallpaper was thus too easy to remove from the wall. The coating layer did not adhere properly to the base paper nor to the wall.
  • the wallpaper must not be too impermeable either, because water vapour must be allowed to exit also outwards when the size dries on the wall.
  • the wallpaper according to the invention is characterized in that the wallpaper comprises a hydrophilic layer between the first surface and the barrier layer, or on the surface of the barrier layer.
  • the wallpaper according to the invention comprises a wood-fibre based base paper with a first and a second surface.
  • the first surface of the base paper comes against the wall, and the second surface comprises the printing and/or other patterning of the wallpaper.
  • the base paper may comprise one or two layers.
  • the base paper does not comprise man-made fibres, but the fibre portion of the base paper comprises mechanical and/or chemical pulp.
  • the wallpaper After the wallpaper according to the invention has been installed on the wall, an adhesive layer which has been applied onto the wall before the placement of the wallpaper is left between the paper and the wall. Consequently, in the present application, no layer to be applied onto the wallpaper refers to the adhesive layer, because the actual adhesive is applied onto the wall.
  • the wallpaper may also comprise an adhesive layer if the adhesive is to be included in the product. In such a case, it would not be necessary to apply the adhesive onto the wall but the adhesive could be, for example, merely wetted to provide a glueing effect.
  • the base paper Before these surface treatments at the manufacturing stage, the base paper may be strongly hydrofobically glued in the wet end of the paper machine.
  • the idea of the invention is that the functionality of the barrier layer is improved by means of a hydrophilous layer. When applied alone, said layer cannot prevent the wet expansion to a sufficient degree, but when applied onto or under the barrier layer, the wallpaper can be made non wet expansive, or the wet expansion can be sufficiently reduced.
  • the treatment layers of the wallpaper according to the invention are formed by using known techniques for coating paper, primarily by spreading.
  • the first alternative is to apply a barrier layer onto the first surface of the base paper to slow down the penetration of water contained in the adhesive into the base paper.
  • a barrier layer a variety of substances can be used which have the capacity to prevent the penetration of water or water vapour, even though the selection of the sub- stances is limited by e.g. the yellowing tendency of certain substances or combinations of substances, or by factors of product safety.
  • the barrier layer can be, for example, styrene acrylate, polyacrylate, styrene butadiene, polyvinyl acetate, or ethyl vinyl acetate.
  • the barrier layer can also be a mixture of several substances.
  • a hydrophilic layer is formed onto the surface of this barrier layer which is capable of absorbing water included in the adhesive under alkaline conditions. However, under neutral conditions, the hydrophilic layer can be dried onto the surface of the barrier layer at the manufacturing stage.
  • the hydrophilic layer may be, for example, a cross-linked polyvinyl alcohol hydrogel.
  • the polyvinyl alcohol can be cross-linked, for example, by a treatment with boric acid.
  • the polyvinyl alcohol also improves the adhesion of the wallpaper to the wall.
  • a base paper manufactured according to this embodiment of the invention has a wet expansion rate of 0 % when the quantity of barrier layer applied is 10 to 13 g/m 2 and the quantity of hydrophilic layer applied is 13 to 17 g/m 2 .
  • the polyvinyl alcohol to be used in the hydrophilic layer can be selected from fully hydrolyzed, superhydrolyzed or ready cross-linked, fully hydrolyzed or superhydrolyzed polyvinyl alcohols.
  • Fully hydrolyzed refers to the hydrolysis degree of 99 to 100 %.
  • the degree of hydrolysis refers to the quantity of alkaline solution added in the preparation of polyvinylalcohol from polyvinyl acetate by saponification.
  • a drop in the degree of hydrolysis refers to an increase in the hydrophilicity of the polyvinyl alcohol.
  • the hydrophilicity can be reduced by controlled thermal treatment by increasing the degree of crystallinity of the polyvinyl alcohol or by cross-linking the polyvinyl alcohol e.g. with boric acid, borax, glyoxal, urea, or melamine resin.
  • the polyvinyl alcohol may also be ready cross-linked. Ready cross- linked polyvinyl alcohols may have been treated with borax or boric acid. The treatment with borax or boric acid increases the viscosity and the tackiness/adhesion properties of the treatment solution. As a result of the treatment, there is less penetration of the polyvinyl alcohol into the paper, wherein the PVA remains on the surface of the paper and gives an even layer thickness.
  • the first surface of the base paper is first provided with a water absorbent hydrophilic layer and, on the surface of the hydrophilic layer, a barrier layer.
  • the function of the different layers is the same as above, and also the substances used for the formation of the layers are the same.
  • This embodiment, in which the barrier layer is in contact with the adhesive has the particular advantage that the wallpaper can be easily moved on the wall; in other words, the placement of the wallpaper on the wall becomes easier.
  • the wallpaper according to the second alternative has a wet expansion rate of 0.13 to 0.34 %, when the quantity of hydrophilic layer applied is 9 g/m 2 and the quantity of barrier layer applied is 9 to 11 g/m 2 .
  • the functional preconditions of the barrier layer are improved by compressing the base before the application of the barrier layer.
  • the compression of the base prevents the penetration of the barrier polymer into the base, wherein the result is a more even barrier layer on the surface.
  • a coating comprising a filler with a polyvinyl alcohol, such as a kaoline coating, is first applied onto the first surface of the wallpaper to seal the surface, and the barrier layer is applied onto the same.
  • a filler such as kaoline or talc
  • the quantity of the polyvinyl alcohol can be reduced, and the runnability and drying are improved by the addition of the filler.
  • the polyvinyl alcohol constitutes the hydrophilic portion of the layer.
  • a filler in a plate-like form, such as kaoline, is best suitable; preferably, it has a form factor of at least 70.
  • a low coating content 8 g/m 2
  • a barrier layer (10 g/m 2 ) applied onto it, a product with no wet expansion was achieved.
  • the hydrophilic layer comprising kaoline and poly- vinyl alcohol, and the barrier layer were further combined with a cross- linking treatment (e.g. with the chemical Fixapret) of the layer comprising polyvinyl alcohol, the quantity of the barrier layer could be reduced by 2 g/m 2 (from 10 to 8 g/m 2 ).
  • the filler such as kaoline or talc, can also be used in the barrier layer.
  • the base paper is hydrofobically well sized, for example by resin, AKD (alkyl ketene dimer) or ASA (alkenyl succinic anhydride) adherence in the wet end of the paper machine.
  • AKD alkyl ketene dimer
  • ASA alkenyl succinic anhydride
  • the agent used for forming the barrier layer was poly- acrylate (Cellfob 18 by Cellkem Oy, Finland).
  • the hydrophilic layer used was cross-linked polyvinyl alcohol (Celanese Celvol MM-14, Noviant) or a mixture of polyvinyl alcohol, kaoline and resin (69/29/6 Kuraray PVA 105 (supplied by Algol) / Capim NP (supplied by Imerys Minerals) / Cellcoat 6040 (supplied by Cellkem)).
  • Celvol MM-14 has been treated with boric acid.
  • Cellcoat 6040 is a polymeric aqueous resin solution containing reactive hydroxyl groups and containing 18 weight-% of glyoxal as a cross-linking agent.
  • the solution used in the experiment was prepared from cross-linked polyvinyl alcohol (Celvol MM-14) as follows: The powder was mixed into water at a temperature of about 25°C. The temperature was raised by heating with steam to 91 °C and maintained for 30 min. The temperature had to be kept below 96°C all the time.
  • the mixture of polyvinyl alcohol, kaoline and resin was prepared as follows: The polyvinyl alcohol powder was mixed into water at a temperature of about 25°C. The temperature was raised by heating with steam to 91 °C and was maintained for 110 min. Kaoline and resin were added into the above-mentioned solution by continuously stirring after the temperature of the solution had been reduced / cooled down to about 30°C.
  • the base paper quality used was Cresta D2 (M-Real, Finland).
  • the base paper had a basis weight of 120 g/m 2 .
  • the base paper quality contains two layers, of which the first layer coming to the side of the wall consists of mechanical pulp, and the second layer consists of chemical pulp. The surface of the second layer is coated with a double coating layer.
  • a barrier layer and a hydrophilic layer were formed by coating with a groove application rod.
  • the formulae used are tabulated in tables 1 and 2, and the test results obtained are tabulated in tables 3 and 4.
  • the barrier layer is against the wall, i.e. in contact with the size.
  • Celvol 103 is a fully hydrolyzed polyvinyl alcohol with a low molecular weight.
  • Celvol 125 is a superhydrolyzed polyvinyl alcohol with a low molecular weight.
  • Celvol 165 is a superhydrolyzed polyvinyl alcohol with a high molecular weight.
  • Celvol 350 is a fully hydrolyzed polyvinyl alcohol with a high molecular weight.
  • Celvol MM-14 is a ready cross- linked polyvinyl alcohol like Celvol MM-51 , but it has a higher molecular weight than Celvol MM-14.
  • the Celvol products are produced by Celanese.
  • the Celvol products which were not ready cross-linked were treated with boric acid to provide cross-linking. The treatment was carried out as follows: 300 g of 15 % polyvinyl alcohol solution were weighed and mixed with 150 g of 3 % boric acid.
  • the combination of Celvol 103 and ND 2591 gave the wet expansion values of 0.4 to 0.6 % with the coating quantities of 12.3 and 16.0 g/m 2 , respectively.
  • the combination of Celvol 350 and delaminated test kao- line gave the wet expansion values of 0.3 to 0.4 % with the coating quantities of 12.2 and 17.4 g/m 2 , respectively.
  • the samples blistered after being attached to the substrate.

Abstract

L'invention porte sur un papier peint comprenant un papier de base constitué de fibres de bois et présentant une première et une seconde surface, et une couche barrière ménagée sur la première surface du papier de base. Le papier peint comprend une couche hydrophile se trouvant entre la première surface et la surface barrière ou sur la surface de la couche barrière.
PCT/FI2005/050082 2004-03-30 2005-03-15 Papier peint WO2005095712A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20045113 2004-03-30
FI20045113A FI121969B (fi) 2004-03-30 2004-03-30 Tapettipaperi

Publications (1)

Publication Number Publication Date
WO2005095712A1 true WO2005095712A1 (fr) 2005-10-13

Family

ID=32039540

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2005/050082 WO2005095712A1 (fr) 2004-03-30 2005-03-15 Papier peint

Country Status (2)

Country Link
FI (1) FI121969B (fr)
WO (1) WO2005095712A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013017857A1 (fr) * 2011-08-03 2013-02-07 Imerys Minerals Limited Composition de revêtement
EP2682522A1 (fr) 2012-07-03 2014-01-08 Ahlstrom Corporation Papier dimensionnellement stable et son procédé de production
WO2015173476A1 (fr) 2014-05-15 2015-11-19 Ahlstrom Corporation Revêtement mural et son procédé de fabrication
EP2949812A1 (fr) 2014-05-27 2015-12-02 Jokiel & Ullmann Consulting GbR Melange pour la preparation d'une liqueur d'impregnation de papier et non-tissé hybride
WO2021038130A1 (fr) 2019-08-23 2021-03-04 Ahlstrom-Munksjö Oyj Revêtement mural pré-encollé et son procédé de production

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1184563A (en) * 1966-09-28 1970-03-18 Wall Paper Manufacturers Ltd Wall Coverings.
US3640756A (en) * 1967-10-31 1972-02-08 Scholten Research Nv Remoistenable pregummed products
GB1311862A (en) * 1969-09-19 1973-03-28 Wall Paper Mfrs Ltd Wall coverings
EP0678401A2 (fr) * 1994-04-04 1995-10-25 Decora, Incorporated Revêtement muraux à base de papier
US5773131A (en) * 1994-03-09 1998-06-30 Dettling; Bernhard Paper or cardboard product

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1184563A (en) * 1966-09-28 1970-03-18 Wall Paper Manufacturers Ltd Wall Coverings.
US3640756A (en) * 1967-10-31 1972-02-08 Scholten Research Nv Remoistenable pregummed products
GB1311862A (en) * 1969-09-19 1973-03-28 Wall Paper Mfrs Ltd Wall coverings
US5773131A (en) * 1994-03-09 1998-06-30 Dettling; Bernhard Paper or cardboard product
EP0678401A2 (fr) * 1994-04-04 1995-10-25 Decora, Incorporated Revêtement muraux à base de papier

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013017857A1 (fr) * 2011-08-03 2013-02-07 Imerys Minerals Limited Composition de revêtement
US9783931B2 (en) 2011-08-03 2017-10-10 Imerys Minerals Limited Coating composition
EP2682522A1 (fr) 2012-07-03 2014-01-08 Ahlstrom Corporation Papier dimensionnellement stable et son procédé de production
RU2630093C2 (ru) * 2012-07-03 2017-09-05 Альстром Корпорейшн Бумага со стабильным размером и способ ее промышленного получения
WO2015173476A1 (fr) 2014-05-15 2015-11-19 Ahlstrom Corporation Revêtement mural et son procédé de fabrication
US10683617B2 (en) 2014-05-15 2020-06-16 Ahlstrom-Munksjö Oyj Wall covering and method of producing the same
EP2949812A1 (fr) 2014-05-27 2015-12-02 Jokiel & Ullmann Consulting GbR Melange pour la preparation d'une liqueur d'impregnation de papier et non-tissé hybride
WO2015181129A1 (fr) 2014-05-27 2015-12-03 Jokiel & Ullmann Consulting Gbr Mélange servant à préparer un bain d'imprégnation de papiers et d'hybrides à base de non-tissés
WO2021038130A1 (fr) 2019-08-23 2021-03-04 Ahlstrom-Munksjö Oyj Revêtement mural pré-encollé et son procédé de production

Also Published As

Publication number Publication date
FI20045113A (fi) 2005-10-01
FI20045113A0 (fi) 2004-03-30
FI121969B (fi) 2011-06-30

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