EP1749134B1 - Verfahren zur herstellung von dekorpapier und dekorlaminat mit einem derartigen dekorpapier - Google Patents
Verfahren zur herstellung von dekorpapier und dekorlaminat mit einem derartigen dekorpapier Download PDFInfo
- Publication number
- EP1749134B1 EP1749134B1 EP05771104A EP05771104A EP1749134B1 EP 1749134 B1 EP1749134 B1 EP 1749134B1 EP 05771104 A EP05771104 A EP 05771104A EP 05771104 A EP05771104 A EP 05771104A EP 1749134 B1 EP1749134 B1 EP 1749134B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paper
- decorative
- resin
- process according
- decorative 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 60
- 229920005989 resin Polymers 0.000 claims abstract description 79
- 239000011347 resin Substances 0.000 claims abstract description 79
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 39
- 238000000576 coating method Methods 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000007766 curtain coating Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims description 40
- 238000004519 manufacturing process Methods 0.000 claims description 25
- 238000007641 inkjet printing Methods 0.000 claims description 24
- 239000011230 binding agent Substances 0.000 claims description 18
- 229920000877 Melamine resin Polymers 0.000 claims description 16
- 238000005470 impregnation Methods 0.000 claims description 16
- 238000007639 printing Methods 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 7
- 239000000834 fixative Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 7
- 230000035515 penetration Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 3
- MSYLJRIXVZCQHW-UHFFFAOYSA-N formaldehyde;6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound O=C.NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 MSYLJRIXVZCQHW-UHFFFAOYSA-N 0.000 claims description 3
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 3
- 239000000872 buffer Substances 0.000 claims description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 239000012153 distilled water Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000000123 paper Substances 0.000 description 106
- 230000000052 comparative effect Effects 0.000 description 18
- 238000010521 absorption reaction Methods 0.000 description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 238000003475 lamination Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 229920000126 latex Polymers 0.000 description 6
- 239000004816 latex Substances 0.000 description 6
- 239000010439 graphite Substances 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000002956 ash Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 241000243142 Porifera Species 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 239000003039 volatile agent Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 241001080024 Telles Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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
- D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
- D21H27/26—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0027—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers by lamination or by fusion of the coatings or layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
- D21H23/48—Curtain coaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
-
- 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
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
Definitions
- the invention relates to a method for manufacturing a decorative paper impregnable by a thermosetting resin, having both good printability, especially in inkjet printing, and good resin absorption properties.
- the invention also relates to such a decorative paper impregnated with a thermosetting resin.
- the invention finally relates to laminated decorative panels or profiles comprising decorative paper impregnated with thermosetting resin.
- laminated decorative panels or profiles have been used as materials in homes, commercial and industrial premises.
- Typical applications of such laminates are floor coverings, particularly flooring-like coatings, furniture coverings, table tops, chairs and the like.
- the so-called high pressure decorative laminates are produced from a core made of resin-impregnated sheets. These sheets are generally made of kraft paper and have been impregnated with a thermosetting resin, most often a phenolic resin. After impregnating the resin sheets, they are dried, cut, and stacked on top of one another. The number of sheets in the stack depends on the applications and varies between 3 and 9, but can be higher. On the pile of leaves constituting the soul, a decorative paper is then placed, also called decor paper or decorative sheet.
- Such a decorative sheet is generally a sheet of paper carrying a pattern printed or colored or comprising decorative particles, impregnated with a thermosetting resin, for example melamine-formaldehyde resins, urea-formaldehyde resins, resins benzoguanamine-formaldehyde or unsaturated polyester resins.
- a thermosetting resin for example melamine-formaldehyde resins, urea-formaldehyde resins, resins benzoguanamine-formaldehyde or unsaturated polyester resins.
- a so-called "overlay”, patternless and transparent overlay in the final laminate is placed above said decorative sheet to improve the abrasion resistance of the laminate.
- the pile of impregnated leaves is then placed in a laminating press whose trays are provided with a sheet conferring the surface state to the laminate.
- the cell is densified by heating, at a temperature of the order of 110 ° C. to 170 ° C., and by pressing, at a pressure of the order of 5.5 MPa to 11 MPa, for approximately 25 to 60 minutes. minutes, to obtain a unitary structure.
- This structure is then fixed on a base support, for example glued to a panel of agglomerated particles, especially agglomerated wood particles.
- the so-called low-pressure decorative laminates are produced using only a decorative sheet impregnated with thermosetting resin, and possibly an overlay sheet, which is laminated directly on the base support during a short cycle, the temperature being of the order of 160 at 175 ° C and the pressure of 1.25 MPa at 3 MPa.
- the decorative paper, or decorative sheet, used for the manufacture of laminates is generally a sheet of paper made on a paper machine.
- Decorative papers currently marketed are generally free of surface treatment in particular to not alter their impregnation speed.
- These decorative papers, or decorative sheets, are generally used to confer a particular aesthetic to the laminated supports on which they are affixed, this aesthetics may result from the printing on paper of a decorative pattern.
- this decorative motif which traditionally consisted of imitating the appearance of a natural material, such as wood or marble, took more diversified forms in view of the demand, so as to adapt to the needs and customer wishes. This increase in the variety of reasons was accompanied by a contrario of a reduction of the quantities to be produced.
- inkjet printing has proven to be the most more adapted to the needs of the decor papers.
- inkjet printing also provides higher quality prints.
- the use of the ink-jet printing principle in the production of decorative papers still faces a major difficulty related to the process of obtaining the laminates themselves.
- the decor paper is first printed, then impregnated with resin and finally pressed hot with its support at high or low pressure.
- the impregnation step requires the provision of a decorative paper having a high resistance in the wet state, so as to maintain a sufficient resistance after its total immersion in an aqueous resin, as well as a resin absorption capacity. the largest possible in the shortest possible time. These characteristics are generally obtained by using decorative papers having a very high porosity.
- the inkjet printing technique is based on the principle of fixing ink on the surface of the print medium, the print medium must therefore, to obtain a clean and high quality, have a limited absorption.
- Improved decorative papers have already been described by pre-coating the decor paper with a layer comprising ink-fixing particles.
- These layers are often composed of a mixture of inorganic pigments, such as calcium carbonate, kaolin, silica, and a binder of the starch, casein, latex, polyvinyl alcohol or aminoplast resin type.
- the patent application EP-A-1044822 discloses a so-called finished sheet, inkjet-printable sheet, formed of a paper coated with an ink-fixing layer. Said paper must be previously smoothed on one side before being coated with said ink fixing layer. This finished sheet is then glued on a panel to make a decorative panel.
- This type of pre-impregnated paper is not intended for so-called high or low pressure stratified panels.
- the paper is pre-impregnated before being coated with the ink-fixing layer, so there is no problem of impregnation.
- a first disadvantage related to the technique of coated coating by a blade is that the excess layer to be deposited before scraping and the mechanical stress of pressure and tension during the contact are hardly applicable to porous and fragile papers such as decor papers . This coating technique causes many breakages during manufacture.
- a second disadvantage is that the same technique of contact coating causes a partial penetration of the layer in the paper support and, consequently, a strong degradation of the resin absorption capacity by the paper.
- US 6,517,674 discloses the manufacture of abrasion-resistant papers which can be coated with a layer by a curtain coating process.
- the invention aims to solve the problems of the prior art decorative laminate papers by providing a manufacturing process conferring said decorative papers both good printability, including inkjet printing, and good absorption properties of thermosetting resin.
- the object of the invention is to provide a process for producing printable decorative paper, in particular by ink jet printing, and impregnable with a thermosetting resin, to obtain a printable decorative paper impregnated by a resin with an impregnation speed. , determined according to the test described below in the paragraph "DESCRIPTION AND CONDITIONS OF REALIZATION OF TESTS", less than 100 seconds, regardless of its face, and which can be used to manufacture so-called decorative laminates high or low pressure.
- At least one of the faces of the base decorative paper sheet is applied by curtain coating to at least one ink-fixing layer.
- the basic decor paper sheet can be smoothed or unsmoothed before being coated with the ink-fixing layer.
- the decorative paper manufacturing method of the invention has the advantage of producing a decorative paper having similar final characteristics regardless of the smoothness of the paper base.
- the basic decor paper sheet may have a Bekk satin of the order of 10 to 200 seconds.
- Said ink-fixing layer preferably comprises at least one hydrophilic binder, in particular a PVA (polyvinyl alcohol).
- said layer further comprises said hydrophilic binder, a non-hydrophilic polymeric binder in a hydrophilic binder / non-hydrophilic binder ratio of at least 70/30 by dry weight.
- Non-hydrophilic binders are polymers used in stabilized aqueous dispersion (latex) and customary ink fixing layers or the paper industry.
- the ink-fixing layer according to the invention is not alkaline so as not to hinder the crosslinking of the thermosetting resin.
- said ink-fixing layer is free of carbonates and alkaline buffers.
- the ink-fixing layer according to the invention may comprise coating fillers which are chosen essentially from silicas.
- the silicas are essentially amorphous precipitated silicas having a specific surface area greater than 100 m 2 / g.
- said base paper sheet can be stained in bulk and / or on the surface; the color remaining remains visible through said layer in view of its transparency after lamination.
- the amount of ink-fixing layer deposited on at least one of the faces of said base decorative paper sheet may be between 4 and 20 g / m 2 , in particular between 6 and 15 g / m 2 by dry weight.
- the curtain coating technique is a pre-dosed coating method used in the photographic industry for more than 20 years. This technology has been developed for photographic films, which require the deposition of many different layers, usually between 8 and 10.
- the curtain coating process is based on the free flow on a surface from a coating head situated above the surface to be coated at a height of between 10 and 25 cm.
- the coating head is defined according to the properties of the coating fluid, so as to obtain the most uniform coating film thickness in the direction of the coating. walk or through the machine.
- Two types of coating heads are generally used: slotted heads and sliding surface heads.
- curtain coating is the absence of contact between the coating head and the support, unlike blade coating in particular.
- the Applicant has found that the deposition of the layer being done without any pressure, the penetration of the composition into the support is limited to the simple capillarity of the fibers of the sheet and is therefore minimal. This results in an almost total preservation of the resin absorption capacity of the sheet, in particular on the non-coated face usually used as the contact face during impregnation with the resin.
- the invention also relates to a process for producing printed decorative paper and impregnable by a thermosetting resin comprising a step of printing, in particular of decorative pattern, of said sheet of printable decor paper coated with at least one ink-fixing layer. of the second step (step b) of the method described above.
- the process for producing a decorative paper impregnable by a thermosetting resin, for high or low pressure decorative laminate is characterized in that said layer is printed by inkjet printing, in particular in high resolution. ink fixative of the decorative paper obtained at the end of step b.
- the invention also relates to a decorative paper printed by ink jet printing and impregnable by a thermosetting resin obtained according to this particular case of the method of the invention.
- the laminate decorative paper obtained by the process of the invention as described above has the characteristic of being printable, in particular by inkjet printing, while retaining good properties of thermosetting resin absorption. .
- the decorative paper for printable or printed laminate in particular by inkjet printing, and impregnable by a thermosetting resin resulting from the processes described above, is characterized by a speed of impregnation of said resin, determined according to the test described herein. -after paragraph "DESCRIPTION AND CONDITIONS OF REALIZATION OF TESTS”, less than 100 seconds, preferably less than or equal to 65 seconds, regardless of its face.
- said rate of impregnation of the decorative paper according to the invention is between 40 and 60 seconds.
- the decorative paper is generally first printed, then impregnated with a heat-stable thermosetting resin, and finally hot pressed with its support at high or low pressure.
- the invention also relates to a method for producing a decorative paper impregnated with a thermosetting resin, which is characterized in that is impregnated by said thermosetting resin, a printed decorative paper, in particular by jet of ink, obtained according to the method as described above.
- thermosetting resin is chosen from melamine-formaldehyde resins, urea-formaldehyde resins, benzoguanamine-formaldehyde resins, unsaturated polyester resins and their mixtures.
- a decorative paper impregnated with partially cross-linked resin is called, in terms of trade, "decorative film” or “decorative film” or “melamine film”.
- This melamine film contains a resin content preferably between 50 and 55% but may range from 45 to 65%.
- This step is generally carried out by carrying the decorative paper at temperatures of about 110 to 140 ° C and is controlled, so that the resin during the final lamination of the decorative film flows well into the sheet, by measuring the volatile rate remaining in the movie decor.
- this decor film then comprises a certain percentage, of the order of 5 to 8%, of volatile products (solvent water of the resin, water resulting from the chemical condensation of the resin, residual formaldehyde, the other products residuals). These volatiles represent the compounds that will be removed during the total crosslinking of the resin, during the lamination of the decor film.
- the resin once fully thermoset after lamination, will provide surface resistance to the final laminate (abrasion resistance, dirt resistance, water vapor and chemical agents such as solvents, acids and alkalis). bases, etc ).
- a decorative paper having a non-alkaline ink-fixing layer and obtained according to the printed decorative paper-making process previously described with a thermosetting resin is impregnated and then cross-linked. partially said resin in an acidic medium, the content of volatile compounds being between 5 and 8% by weight of the sheet.
- the invention relates to a laminated decorative panel or profile, which is characterized in that it comprises as decorative paper, a decorative paper obtained as described above.
- the basic components of the laminate are kraft sheets impregnated with thermosetting resin and the decorative paper obtained by the process of the invention impregnated with a thermosetting resin.
- the basic components of the laminate are the support panel as a particleboard and a decorative paper obtained according to the method of the invention impregnated with a thermosetting resin.
- Comparative Example 1 According to a conventional papermaking process, a smooth, plain white decorative paper having a grammage of 80 g / m 2 , a Gurley porosity of 20 s, a Bekk satin of 20 s, and containing 38% of ash is manufactured. . Such paper is sold by the company ARJOWIGGINS under the trade name ARJOSAVE. This paper is printed as is by inkjet printing on an EPSON® 7600 printer. It is then impregnated with a thermosetting melamine-formaldehyde resin and laminated to form a low pressure laminate board.
- Comparative Example 2 This same ARJOSAVE white plain decorative paper is coated according to the film coating process with 10 g / m 2 dry weight of a layer C1 composed of 28.6 parts of a binder made of a mixture of an aqueous solution of hydrophilic polyvinyl alcohol (PVA) and a polyvinyl acetate in stabilized aqueous dispersion (said latex), respectively in proportions 85/15 by dry weight, and 100 parts of a calcium carbonate precipitate (PCC) coating.
- PVA hydrophilic polyvinyl alcohol
- PCC calcium carbonate precipitate
- Comparative Example 3 This same ARJOSAVE paper is coated by the blade method with 10 g / m 2 dry weight of a layer C2 composed of 28.6 parts of the binder of Example 2 and 100 parts of a silica coating (amorphous) having an average particle size of 5.3-6.3 ⁇ m and a specific surface area (BET) of 160 m 2 / g.
- This paper is then, as in the previous examples, printed by inkjet printing on an EPSON® 7600 printer. It is then impregnated with a melamine-formaldehyde thermosetting resin and laminated to form a low pressure laminate panel.
- a sheet of the same plain white paper marketed by ARJOWIGGINS under the trade name ARJOSAVE is manufactured on a Fourdrinier type paper machine.
- the sheet after drying has a basis weight of 80 g / m 2 , a porosity
- Gurley of 20s a satin Bekk of 20s, and contains a rate of ashes of 38%.
- the paper sheet thus obtained is reeled.
- this paper is then coated by the curtain coating process on one of its faces by 10 g / m 2 dry weight of a layer C2 identical to that used in Example 3.
- the paper sheet thus coated on an EPSON® 7600 printer is printed by inkjet printing.
- the sheet is then impregnated with a melamine-formaldehyde resin in aqueous media.
- This sheet is laminated to manufacture a low pressure laminate according to the usual operating conditions.
- Comparative Example 5 (Reference Printing Base): According to a conventional papermaking process, a plain white non-smoothed decorative paper having a grammage of 80 g / m 2 , a Gurley porosity of 20 s, a Bekk satin of 140 is produced. s, and containing 38% ash. Such paper is marketed by ARJOWIGGINS under the trade name ARJOPRINT . This paper is printed as is by inkjet printing on an EPSON® 7600 printer. It is then, as in the previous examples, impregnated with a thermosetting melamine-formaldehyde resin and laminated to form a low-type laminate board. pressure.
- Comparative Example 6 The same Arjoprint paper is coated according to the blade process with 10 g / m 2 of the layer C2 identical to that used in Example 3. It is then, as in Example 5, printed and impregnated melamine-formaldehyde thermosetting resin and laminated to form a low pressure laminate panel.
- a sheet of the same plain white paper marketed by ARJOWIGGINS under the trade name ARJOPRINT is manufactured on a Fourdrinier type paper machine.
- the sheet after drying has a basis weight of 80 g / m 2 , a Gurley porosity of 20 s, a Bekk satin of 140 s, and contains an ash content of 38%.
- the paper sheet thus obtained is reeled.
- the paper is coated by the curtain coating process on one of its faces with 10 g / m 2 dry weight of a layer C2 identical to that used in Example 3.
- the paper sheet thus coated on an EPSON® 7600 printer is printed by inkjet printing.
- the sheet is then impregnated with a melamine-formaldehyde resin in aqueous media.
- This sheet is laminated to manufacture a low pressure laminate according to the usual operating conditions.
- Comparative Example 8 The same ARJOPRINT paper is coated according to the blade process with 10 g / m 2 of a layer C3 composed of 28.6 parts of a polyvinyl acetate in the form of latex and 100 parts of an (amorphous) coating silica having an average particle size of 5.3-6.3 ⁇ m and a BET specific surface area of 160 m 2 / g. It is, as in Example 6, printed and then impregnated with a melamine-formaldehyde thermosetting resin and laminated to form a low pressure laminate panel.
- Comparative Example 2 shows a high undercuring of the melamine-formaldehyde resin after lamination.
- Example 8 it will be noted that the use of a layer whose binder contains too much non-hydrophilic binder (latex) causes a blistering phenomenon for the laminate which is unacceptable.
- the examples show that the invention makes it possible to obtain a decorative paper exhibiting both excellent inkjet printing aptitude and good absorption of the resin, necessary for the subsequent impregnation of this type of paper.
- non-hydrophilic polymer (of the latex type) mixed with a hydrophilic binder in the coating composition is also possible, in proportions compatible with the impregnation and lamination requirements of the coated sheet. (no blistering)
Landscapes
- Laminated Bodies (AREA)
- Paper (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
Claims (17)
- Verfahren zur Herstellung von Dekorpapier, das mit mindestens einer Druckfarbe fixierenden Schicht bedeckt ist, die bedruckbar und mit einem wärmehärtenden Harz tränkbar ist, für Hochdruck- oder Niederdruck-Dekorlaminat, umfassend die folgenden Schritte:a. man stellt ein Dekorpapier-Basisblatt nach einer Papierherstellungsmethode her undb. beschichtet dann durch Vorhangbeschichtung mindestens eine der Seiten des Basispapierblatts mit mindestens der Druckfarbe fixierenden Schicht.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Druckfarbe fixierende Schicht durch Tintenstrahldruck bedruckbar ist.
- Verfahren nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass die Druckfarbe fixierende Schicht mindestens ein hydrophiles Bindemittel umfasst.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die Schicht zusätzlich zu dem hydrophilen Bindemittel ein nicht-hydrophiles polymeres Bindemittel in einem Verhältnis von hydrophilem Bindemittel zu nicht-hydrophilem Bindemittel von mindestens 70/30 Trockengewicht umfasst.
- Verfahren nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass das hydrophile Bindemittel Polyvinylalkohol (PVA) ist.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Schicht nicht alkalisch ist, insbesondere frei von Carbonaten und alkalischen Puffern ist.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schicht Beschichtungsfüllstoffe umfasst, die im Wesentlichen aus den Siliciumdioxiden ausgewählt sind.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass die Siliciumdioxide im Wesentlichen amorphe Fällungs-Siliciumdioxide sind.
- Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Menge an aufgebrachter Schicht zwischen 4 und 20 g/m2 Trockengewicht, insbesondere zwischen 6 und 15 g/m2 beträgt.
- Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Verfahren einen Schritt des Bedruckens des Papierblatts, das von dem Schritt b des Verfahrens kommt und mit mindestens einer Druckfarbe fixierenden Schicht beschichtet ist, insbesondere mit einem Ziermuster umfasst.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass man die Druckfarbe fixierende Schicht durch insbesondere hochauflösenden Tintenstrahldruck bedruckt.
- Dekorpapier, das insbesondere durch Tintenstrahldruck bedruckbar oder bedruckt und mit einem wärmehärtenden Harz tränkbar ist, hergestellt nach dem Verfahren zur Herstellung von Dekorpapier, wie es in den Ansprüchen 1 bis 11 definiert ist.
- Bedruckbares oder bedrucktes, mit einem wärmehärtenden Harz tränkbares Dekorpapier, wie es in den Ansprüchen 1 bis 12 definiert ist, dadurch gekennzeichnet, dass es, unabhängig von seiner Seite, eine Geschwindigkeit der Tränkung mit Harz von weniger als 100 Sekunden besitzt, wobei diese Geschwindigkeit gekennzeichnet ist durch die Bestimmung der Zeit des Durchdringens des wärmehärtenden Harzes durch das Blatt, wobei diese Zeit auf folgende Weise bestimmt wird:- man stellt eine Harzlösung zu 56 Gew.-% her, indem man ein pulverförmiges Melamin-Formaldehyd-Harz der Marke MADURIT MW550 in auf etwa 45°C erhitztem destilliertem Wasser löst; man stellt ihre Viskosität so ein, dass sie etwa 100 mPas bei etwa 20°C auf dem Viskosimeter BROOKFIELD, gemessen bei 100 Umdrehungen/min - Spindel Nr.2, beträgt, und bestimmt die Zeit der Tränkung eines Papierblatts wie folgt:- man schneidet zwei quadratische Proben 10 x 10 cm pro Test; zum Testen jeder Seite markiert man die Seite,- man füllt ein Uhrglas mit Harz,- man legt das Papierquadrat auf die Oberfläche des Harzes auf, wobei die zu testende Seite mit diesem in Kontakt ist, und man löst gleichzeitig den Zeitmesser aus,- man notiert die Zeit des vollständigen Durchschlagens, die die Durchdringungszeit des Harzes ergibt.
- Papier nach Anspruch 13, dadurch gekennzeichnet, dass die Tränkgeschwindigkeit weniger als oder gleich 65 Sekunden beträgt.
- Verfahren zur Herstellung eines getränkten Dekorpapiers für Zierlaminate, dadurch gekennzeichnet, dass man ein bedrucktes Dekorpapier, wie es in den Ansprüchen 12 bis 14 definiert ist, mit einem wärmehärtenden Harz tränkt.
- Verfahren nach Anspruch 15, dadurch gekennzeichnet, dass das wärmehärtende Harz ausgewählt ist aus Melamin-Formaldehyd-Harzen, Harnstoff-Formaldehyd-Harzen, Benzoguanamin-Formaldehyd-Harzen, ungesättigten Polyester-Harzen und ihren Mischungen.
- Hochdruck- oder Niederdruck-Laminattafel oder -profil, dadurch gekennzeichnet, dass sie bzw. es als Dekorpapier ein Dekorpapier umfasst, wie es in den Ansprüchen 10 bis 16 hergestellt oder definiert ist.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602005016102.3T DE602005016102C5 (de) | 2004-05-13 | 2005-05-13 | Verfahren zur herstellung von dekorpapier und dekorlaminat mit einem derartigen dekorpapier |
PL05771104T PL1749134T3 (pl) | 2004-05-13 | 2005-05-13 | Sposób wytwarzania papieru dekoracyjnego i laminatu dekoracyjnego, zawierającego taki papier dekoracyjny |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0405205A FR2870265B1 (fr) | 2004-05-13 | 2004-05-13 | Papier decoratif et stratifie decoratif le comportant |
PCT/FR2005/001203 WO2005116337A1 (fr) | 2004-05-13 | 2005-05-13 | Procede de fabrication de papier decoratif et stratifie decoratif comportant un tel papier decoratif |
Publications (2)
Publication Number | Publication Date |
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EP1749134A1 EP1749134A1 (de) | 2007-02-07 |
EP1749134B1 true EP1749134B1 (de) | 2009-08-19 |
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EP05771104A Active EP1749134B1 (de) | 2004-05-13 | 2005-05-13 | Verfahren zur herstellung von dekorpapier und dekorlaminat mit einem derartigen dekorpapier |
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US (1) | US9567713B2 (de) |
EP (1) | EP1749134B1 (de) |
CN (1) | CN1973089B (de) |
AT (1) | ATE440177T1 (de) |
CA (1) | CA2564505C (de) |
DE (1) | DE602005016102C5 (de) |
ES (1) | ES2330867T3 (de) |
FR (1) | FR2870265B1 (de) |
PL (1) | PL1749134T3 (de) |
PT (1) | PT1749134E (de) |
WO (1) | WO2005116337A1 (de) |
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US9873987B2 (en) | 2012-10-30 | 2018-01-23 | Munksjo Arches | Decorative paper for layered products |
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2004
- 2004-05-13 FR FR0405205A patent/FR2870265B1/fr not_active Expired - Fee Related
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2005
- 2005-05-13 ES ES05771104T patent/ES2330867T3/es active Active
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- 2005-05-13 PT PT05771104T patent/PT1749134E/pt unknown
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- 2005-05-13 US US11/569,047 patent/US9567713B2/en active Active
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Publication number | Publication date |
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EP1749134A1 (de) | 2007-02-07 |
ES2330867T3 (es) | 2009-12-16 |
CN1973089B (zh) | 2012-06-13 |
CA2564505A1 (fr) | 2005-12-08 |
PT1749134E (pt) | 2009-10-29 |
FR2870265A1 (fr) | 2005-11-18 |
WO2005116337A1 (fr) | 2005-12-08 |
CN1973089A (zh) | 2007-05-30 |
DE602005016102C5 (de) | 2015-12-10 |
FR2870265B1 (fr) | 2006-07-14 |
ATE440177T1 (de) | 2009-09-15 |
CA2564505C (fr) | 2013-12-31 |
US20080090032A1 (en) | 2008-04-17 |
PL1749134T3 (pl) | 2010-01-29 |
US9567713B2 (en) | 2017-02-14 |
DE602005016102D1 (de) | 2009-10-01 |
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