CN115443359A - 用于制造层压板的装饰纸层和方法 - Google Patents
用于制造层压板的装饰纸层和方法 Download PDFInfo
- Publication number
- CN115443359A CN115443359A CN202180029433.8A CN202180029433A CN115443359A CN 115443359 A CN115443359 A CN 115443359A CN 202180029433 A CN202180029433 A CN 202180029433A CN 115443359 A CN115443359 A CN 115443359A
- Authority
- CN
- China
- Prior art keywords
- paper layer
- layer
- resin
- decorative paper
- particle size
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000000976 ink Substances 0.000 claims abstract description 63
- 238000000576 coating method Methods 0.000 claims abstract description 59
- 239000011248 coating agent Substances 0.000 claims abstract description 54
- 239000002245 particle Substances 0.000 claims abstract description 53
- 239000000049 pigment Substances 0.000 claims abstract description 39
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 20
- 239000003086 colorant Substances 0.000 claims abstract description 6
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 6
- 239000000741 silica gel Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims description 91
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- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 claims description 6
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- 238000001033 granulometry Methods 0.000 claims description 3
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
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- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical class Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 2
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 229920000734 polysilsesquioxane polymer Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
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- 150000003839 salts Chemical class 0.000 description 2
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- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
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- 239000004327 boric acid Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
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- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 1
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- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
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- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
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- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical class [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- IYMSIPPWHNIMGE-UHFFFAOYSA-N silylurea Chemical class NC(=O)N[SiH3] IYMSIPPWHNIMGE-UHFFFAOYSA-N 0.000 description 1
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- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
-
- D—TEXTILES; PAPER
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- 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
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- D21H19/822—Paper comprising more than one coating superposed two superposed coatings, both being pigmented
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
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- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
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- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/08—Impregnating
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- 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
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/34—Multicolour thermography
- B41M5/345—Multicolour thermography by thermal transfer of dyes or pigments
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- 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
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- 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
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- 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
- B44C5/043—Ornamental plaques, e.g. decorative panels, decorative veneers containing wooden elements
-
- 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
- B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/248—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using pre-treated fibres
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/322—Pigment inks
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/40—Ink-sets specially adapted for multi-colour inkjet printing
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/54—Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
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- D—TEXTILES; PAPER
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- 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
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Abstract
一种装饰纸层,包括基纸层、喷墨接收涂层和图案,图案通过数字化地施加来自一组多种不同颜色的油墨的油墨而在喷墨接收涂层上形成,其中,所述油墨中的至少一种油墨包含平均粒径大于150nm的有色颜料,并且所述喷墨接收涂层包含二氧化硅颜料,其中,所述二氧化硅颗粒是沉淀二氧化硅颗粒和/或硅胶颗粒和/或具有比所述有色颜料的所述平均粒径大至少4倍的平均粒度的颗粒和/或具有1至40微米,优选地1至15微米,或2至12微米的平均粒度的颗粒。
Description
本发明涉及用于在制造层压组件的方法中使用的装饰纸层,例如具有装饰表面的层压面板,或所谓的装饰面板,以及制造这种层压板或层压面板的方法。显然,本发明的装饰纸层可以在除了面板之外的层压组件中使用,例如所谓的CPL(致密层压板),其可以由两个或更多个固结树脂浸渍纸层的层压板组成。
更具体地,本发明涉及一种制造层压面板的方法,其中所述板至少包括基材和在其上设置的具有印刷装饰的顶层。该方法可用于制造面板,其顶层由热固性树脂和一个或多个纸层形成,其中所述纸层包括具有印刷图案的装饰纸。
传统上,这种面板的装饰或图案通过平版印刷或凹版印刷印刷在纸上。所获得的纸被用作所谓的层压面板中的装饰纸。为了制造这种面板,可以实施DPL工艺。根据DPL工艺(直接压力层压),已印刷的纸或装饰纸配有三聚氰胺基树脂以形成装饰层。之后形成包括至少一个板状基材、所述装饰层和可能在所述装饰层顶部上的保护层的堆叠体,其中,所述保护层或覆盖层也基于树脂和/或纸。所述堆叠体被压制并且压制处理导致装饰纸、基材和保护层的相互连接或粘附,以及使存在于堆叠体中的树脂硬化。作为压制操作的结果,获得了具有三聚氰胺表面的装饰板,其可以是高度耐磨的。在板状基材的底侧,可以施加对置层或平衡层,或者作为替代,也可以将装饰层附接到底侧,尤其是在家具层压面板的情况下。层压面板底侧的这种对置层或平衡层或任何其他层限制或防止装饰面板可能的弯曲,并且应用在相同的压制处理中,例如在堆叠体的与所述装饰层相对的一侧通过提供树脂承载纸层作为堆叠体的最下层。例如,DPL工艺的示例,参考了EP1290290,从该专利中进一步得知在相同的压制处理或压制操作期间在所述三聚氰胺表面提供浮雕,即通过使所述三聚氰胺表面与结构化压制元件(例如,结构化压制板)接触。
通过模拟印刷工艺(例如通过凹版印刷或平版印刷)以可承受的价格印刷纸张不可避免地导致特定装饰纸的最小订购量变大并且限制了可获得的灵活性。装饰或图案的变化需要使印刷设备停止大约24小时。更换印刷辊、清洁印刷设备以及调整要印刷的新装饰或图案的颜色都需要这段停顿时间。
代替模拟印刷技术,数字印刷技术,尤其是喷墨印刷技术,无论是在纸上还是直接在可能带有准备层的中间层的板状基材上,对于创建装饰或图案,正变得越来越流行。这种数字技术可以显着提高装饰印刷的灵活性。其中参考了EP1872959、WO2011/124503、EP1857511、EP2431190、EP2293946、WO2014/084787、WO2015/140682和WO2015/118451,其中此类技术被公开。
EP2132041公开了一种方法,该方法至少包括提供具有热固性树脂的纸层的步骤和提供具有印刷图案的所述树脂提供的纸层的步骤。优选地,在上述纸层上,施加多色印刷图案来实现装饰,例如代表木纹。这种装饰延伸到树脂提供的纸层的大部分,甚至全部。在EP2132041中,应用了数字印刷机,更具体地,应用了喷墨印刷机。然而,很难可靠地进一步加工这种印刷纸以制造层压面板,例如在DPL工艺中,因为压制缺陷可能起源于树脂表面,并且经常在层压板表面或其边缘进行铣削、钻孔或锯切导致顶层分裂。此外,EP’041的油墨或染料可能会过度润湿纸层,并在进一步处理印刷纸时导致起皱或渗色,从而导致生产过程不稳定和/或缓慢。为了解决这个问题,EP’041建议立即干燥印刷纸层。
EP1044822、EP1749676和EP2274485公开了使用喷墨接收涂层来提高在其他未处理的基纸层上的印刷质量。这种喷墨接收涂层包含颜料和聚合物,例如聚乙烯醇。尽管得到了提高,但在这种处理过的纸上获得的印刷色密度仍然低于模拟印刷品,并且特别是当这种印刷的纸要覆盖树脂浸渍的保护纸片,例如覆盖层时,可能会产生压制缺陷。装饰纸层和保护纸片之间的层压强度有时可能低于可接受的水平。
本发明首先针对可用于制造具有装饰表面的面板的方法中的替代装饰纸层,并根据其若干优选地实施例寻求解决现有技术中出现的一个或多个问题。
因此,根据其第一个独立方面,本发明涉及一种装饰纸层,该装饰纸层包括基纸层、喷墨接收涂层和图案,该图案通过数字化地施加来自一组多种不同颜色的油墨的油墨而在喷墨接收涂层上形成,其中,作为特征,所述油墨中的至少一种包含平均粒径大于150nm或大于175nm的有色颜料,并且所述喷墨接收涂层包含二氧化硅颜料,其中,所述二氧化硅颜料是沉淀二氧化硅颗粒和/或硅胶颗粒和/或具有比所述有色颜料的平均粒径大至少4或5倍的平均粒度的颗粒和/或具有1至40微米、优选地1至15微米或2至12微米的平均粒度,其中,所述平均粒度和所述平均粒径通过激光散射粒度测定技术确定。发明人已经注意到,油墨颜料和二氧化硅颜料的这种粒度组合导致了令人意外的良好结果,没有压制缺陷,并且当用例如保护树脂浸渍纸片热压时提高了层压强度。发明人通过假设是较大的二氧化硅颗粒决定了两层纸和/或树脂层之间的界面质量,而不是较小的油墨颜料和油墨的聚合物含量,它们有时会干扰树脂结合,从而促成了这一令人意外的结果。
优选地二氧化硅的平均粒度/油墨颜料的平均粒度的比值大于10,甚至大于15。
油墨的颜料的平均粒度优选地小于300nm。
激光散射粒度测定法根据ISO13320进行,即通过动态光散射技术使用发射波长为632.8nm的激光并在90度散射角下测量。这种粒度测定可以例如用Malvern(莫尔文)(粒度分析仪)2000或用Mastersizer3000进行。为了进行粒度分布的测量,可以将各个颗粒分散在液体中,例如水中。
优选地,所述基纸层的厚度在50和200μm之间,优选地在60和130μm之间。
优选地,所述有色颜料包括红色颜料,选自由C.I.红色颜料(颜料红,PigmentRed)122、C.I.红色颜料144、C.I.红色颜料176、C.I.红色颜料188、C.I.红色颜料207、C.I.红色颜料242、C.I.红色颜料254、C.I.红色颜料272、上述红色颜料的任意的混合晶体、喹吖啶酮(喹吖酮,quinacridone)、喹吖啶酮混合物和喹吖啶酮衍生物组成的组。否则,具有红色颜料的油墨可能会产生分层问题,但本发明人注意到,特别是对于这些颜料,在声称的颜料粒度下,以及对于声称的二氧化硅颗粒,从层压强度的角度来看,获得了非常好的结果。这种分层是红色颜料的一个特殊问题,这可能是由于红色颜料的油墨通常具有较高的聚合物含量,其中,这种聚合物会干扰将在层压材料的层之间形成的树脂结合。
优选地,二氧化硅颗粒可在所述基纸层的所述表面上使用。
优选地,所述二氧化硅颗粒是沉淀二氧化硅或硅胶颗粒,其具有的平均粒度为1至40微米,优选地1至15微米,或2至12微米。在最优选的实施例中,具有5至7微米的d50粒度的沉淀二氧化硅颗粒包含在喷墨接收涂层中,优选地具有紧密的粒度分布,即具有高于2微米的d10值和低于12微米的d90值。
根据最优选的实施例,使用喷墨接收涂层中二氧化硅颗粒,优选地沉淀二氧化硅或硅胶的粒度分布,其具有3或约3微米的d10、10或约10微米的d90和4.5至5.7微米,优选地约5.3微米的d50。
优选地,所述基纸层的所述芯不含或基本上不含二氧化硅颗粒。
优选地,所述油墨从所述表面渗入所述基纸层的芯的深度小于基纸层厚度的30%,优选地至少为基纸层厚度的10%。优选地,所述基纸层的厚度在50和200μm之间,优选地在60和130μm之间。由数字化地施加的油墨形成的图案优选地延伸到大部分,或者甚至延伸到基纸层的全部。优选地,平均而言,至少1克每平方米,或至少2克每平方米的油墨负载存在于所述基纸层的印刷区域中。
很明显,基纸层的纵向边缘可以不印刷,或者印刷有技术图像,例如位置标记和/或标记以目视检查印刷质量。
优选地,所述装饰层呈卷筒形式,并且因此具有实际上无限的长度,例如至少1000米,和/或所述装饰层的宽度优选地在1米和4米之间,更优选地在1.6和2.2米之间。
优选地,所述喷墨接收涂层还包含粘合剂,例如聚乙烯醇(PVA),优选地交联型的。
优选地,所述油墨是水性着色油墨。特别是在已经通过喷墨印刷施加油墨的情况下,所施加的油墨的水含量可能很大,因为发射微滴,例如体积为65皮升(pL)或以下的液滴,需要低粘度的油墨。根据优选地实施例,所使用的液滴可以在1和10pL之间,例如3或6皮升液滴。相对大的水含量将被吸收在二氧化硅颗粒和喷墨接收涂层的潜在粘合剂中。
优选地,根据Gurley(格利)法(Tappi T460),所述基纸层具有25秒或更低的平均空气阻力。低空气阻力使得基纸层特别适合树脂浸渍。优选地使用热固性树脂,如上述DPL工艺中的情况。优选的热固性树脂是三聚氰胺基树脂,例如三聚氰胺甲醛树脂。
优选地,所述基纸层的纸面重量为60-85克/平方米,其中70克或约70克/平方米为优选地值。
发明人已经发现,油墨向基纸层的深度方向的渗透是能容忍的,但不能过多。可容忍的渗透旨在使油墨在水平方向上(即在纸张表面所包含的方向上)达到一定程度的渗色。水平渗色可导致最终记录的点显着大于基于所施加的墨滴体积的记录点的预期尺寸,更特别地,在喷墨印刷机的情况下,大于基于喷射的墨滴尺寸的预期尺寸。显着的水平渗色或点增大导致所获得的印刷品的色密度高,并且可以用较少的油墨施加到基纸层上来获得鲜艳的色彩。优选地,通过以由DPI值(每英寸点数)表示的定义将液滴喷射到所述基纸层并在由相应的墨滴形成的相邻点的中心之间产生平均距离来施加所述油墨,而由所述墨滴形成的点大于所述平均距离。
优选地,油墨渗透的所述深度小于30μm,优选地为20μm或更小。
根据以下可能性中的一种或两种或更多种的组合,可以实现有限的油墨渗透以及显着的水平渗色或网点扩大。
根据第一种可能性,在所述基纸层的所述表面上可获得二氧化硅颗粒。优选地,所述基纸层的二氧化硅含量基本上可在所述表面上获得。优选地,所述基纸层的二氧化硅含量迅速下降到所述表面之下。优选地,所述基纸层在基纸层厚度的20%,甚至10%深度处的二氧化硅含量低于所述表面二氧化硅含量的5%,如果不是0%,甚至低于1%。二氧化硅颗粒可以存在于设置在所述表面处的油墨接收层中。优选地,这种油墨接收层还包含粘合剂,优选地亲水性粘合剂,例如PVA(聚乙烯醇),和/或包含金属盐,例如氯化钙或CaCl2。直接在基纸层表面上的二氧化硅颗粒的可用性,可能与亲水粘合剂组合,导致油墨载体的快速吸收,以及分散在所述载体中的有色颜料在深度方向上的有限渗出。在基纸层表面优选地可得的金属盐使分散的颜料不稳定并趋于将颜料锁定在表面或其紧邻处,同时允许载体进一步向下渗透。
根据第二种可能性,二氧化硅颗粒可用于所述基纸层中和/或之上,所述二氧化硅颗粒是沉淀二氧化硅的颗粒,优选地具有1至40微米、优选地1至15微米或2至12微米的平均粒度。与较小的颗粒相反,1至40微米范围内的颗粒在施用时更不容易被吸收在基纸层中,从而在纸层表面更有效。沉淀型二氧化硅颗粒通常大于例如气相型颗粒,具有较高的表面粗糙度。沉淀二氧化硅是多孔的,在印刷纸层随后用树脂如三聚氰胺树脂浸渍的情况下,树脂也可以渗透沉淀二氧化硅的孔隙。进一步的沉淀二氧化硅比气相二氧化硅包含更多的硅烷醇基团和羟基。这些基团与三聚氰胺树脂等树脂具有更高的亲和力和相容性。发明人进一步观察到,与用气相二氧化硅形成相同涂层时相比,用沉淀二氧化硅获得的涂层具有更高的粗糙度,或者换句话说,BEKK光滑度值(根据ISO5627:1995测量)显着降低。所有上述情况都导致施加在印刷图案顶部的任何树脂或树脂层具有更好的附着力,特别是当使用高油墨量来形成图案或其某些区域时,例如每平方米4毫升的油墨量或更多的。
根据第三种可能性,所述基纸层的所述芯不含或基本上不含二氧化硅颗粒。优选地,任何具有二氧化硅的涂层优选地主要存在于基纸层的表面,即在那里它最有效地限制渗透深度和产生一些水平渗色或网点扩大。发明人观察到,用于DPL面板的某些商业可喷墨印刷基纸层具有大量的相对较小的,即200纳米或更小的气相二氧化硅颗粒,其已经渗透到基纸层的纤维素纤维之间。这些纸导致有色水性油墨在深度方向上的渗透程度要大得多,并导致随后的颜色密度损失。必须采用较高的油墨加载量才能获得一定的颜色密度,这本身就会导致与要施加在印刷纸层中或印刷纸层之上的任何树脂的粘附问题。发明人已经观察到,在这些商业票据中实际上可能不存在水平渗色,尤其是当用小液滴如3pL液滴喷射时。
优选地,所有上述三种可能性结合在同一基纸的表面上。优选地,获得的基纸层在其主要表面之一包含平均粒径度为1-40微米的沉淀二氧化硅颗粒,而所述纸层的芯不含或基本上不含二氧化硅颗粒。
从以上可以清楚地看出,优选地,可印刷纸层表面上的喷墨接收涂层集中在表面上,而不是在纸层的纤维素含量内,即纸层内部。如前所述,沉淀型二氧化硅颜料通常大于例如气相法二氧化硅颜料。较大粒度的颜料倾向于更少浸渍到基纸层的纤维素芯中。
优选地,所述二氧化硅颜料具有100至750平方米/克,优选地300至750平方米/克的比表面积(specific surface area),如根据ISO9277:2010测量的BET面积所定义。较高的BET面积导致颜料更好地结合到喷墨接收涂层的其他组分中,例如结合到粘合剂中。更好地掺入的颜料倾向于保留在纸的表面而不是渗透纤维素芯,并且还将涂层物质的其他组分保留在表面。
应当注意,所述油墨优选地为水基油墨,但不排除UV固化油墨或胶乳基油墨或水-UV油墨。
还应注意,所述二氧化硅颗粒可以是硅烷处理的。通常,颜料的硅烷处理可以进一步增强,即降低所获得的喷墨接收涂层和由此处理的纸的粉尘释放。硅烷处理可以涉及使用偶联剂(例如氨基-有机-硅烷、羟基硅烷、双臂硅烷(双足硅烷,dipodal silanes)和/或其他硅烷)的处理。优选地,选择偶联剂使得所获得的喷墨接收涂层在老化时变黄的风险降低。优选地,偶联剂占喷墨接收涂层的总湿重的0.1至10%。
如前所述,优选地,基纸层表面上的喷墨接收涂层除了二氧化硅颗粒之外还优选地包含粘合剂。用于喷墨接收层的优选的粘合剂包括聚乙烯醇(PVA),但根据变体,可以施加乙烯醇共聚物或改性聚乙烯醇。改性聚乙烯醇可以是阳离子型聚乙烯醇,例如来自Kuraray(可乐丽)的阳离子聚乙烯醇等级,例如来自Nippon Goshei(立邦)的POVALC506、POVALC118。
除了二氧化硅颗粒和可能的粘合剂之外,基纸层表面上的喷墨接收涂层还优选地包含一种或多种以下试剂:
-交联剂:0.05至5g/m2,优选地0.2至2g/m2,例如选自醛、多醛、二醛、醇、硼酸、硼砂、多元醇、氨基甲酸酯、聚氨基甲酸酯、碳酸、乙二醛基试剂、锆基试剂和聚碳酸组成的列表。
-颗粒表面改性剂或偶联剂:0.05至5g/m2,优选地0.2至2g/m2,例如选自氨基硅烷、脲基硅烷、醛硅烷、原硅酸四乙酯、硅氮烷、有机改性硅烷、有机改性硅氮烷、氯硅烷、有机改性氯硅烷、双硅烷、有机双硅烷、倍半硅氧烷、聚倍半硅氧烷、硅烷低聚物、有机改性硅烷低聚物、双硅烷低聚物、有机改性双硅烷低聚物、低聚倍半硅氧烷和低聚聚倍半硅氧烷组成的非限制性列表。
-添加剂:润湿剂0.005至2g/m2,优选地0.05至1g/m2;和/或消泡剂0.005至2g/m2,优选地0.05至1g/m2;和/或杀真菌剂在0.005和2g/m2之间,优选地在0.05和1g/m2之间。
优选地,施加涂层或喷墨接收涂层的基纸层的侧面已经变得平滑(德语:),优选地在其生产期间。平滑减少了渗透纸芯的粘合剂的量,使得其中包含的颜料可以更好地被可用的粘合剂物质粘合,并且吸收的变化可能更小。优选地,可印刷纸层,即包括喷墨接收涂层但没有图案的基纸层,具有20-120秒,优选地20-80秒的Gurley值。这样的纸层导致优良的印刷质量,因为沉积的油墨倾向于较少渗入纸中,并且更容易获得和保持使用不同喷墨头施加的印刷图案之间的位置一致或所谓的套准。事实上,相对较高的Gurley值会导致纸张尺寸更稳定,因为它不易吸水。当处理用热固性树脂浸渍这种高Gurley值纸时,可以考虑降低浸渍通道的速度,使用加压浸渍技术和降低浸渍树脂的粘度。
可在基纸表面上获得的喷墨接收涂层可以在单个步骤中施加,或者,并且根据最优选的实施例,所述涂层已经在至少两个部分步骤中施加,其中,分别为施加第一组合物的第一层和随后施加第二组合物的第二层,两种组合物都至少包含所述粘合剂。
本发明人见证了以两个部分步骤施加涂层导致颜料更好地结合或接合。与仅在一个涂层步骤中施加相同数量的颜料的情况相比,降低了从纸张释放灰尘的风险。分两步施加涂层可进一步导致以这种方式获得的喷墨接收涂层的整体施加更加均匀。在第一组合物可能以不均匀的方式部分地吸收在纸层中并且因此可能导致具有较少有效部分的不均匀的第一层的情况下,第二组合物至少在一定程度上消除了可能的不均匀性。
由于第一和第二组合物可以具有不同的组分或都可以具有以不同浓度存在的组分,因此以至少两个步骤施加喷墨接收涂层允许通过其厚度创建涂层某些组分的梯度。在至少两个步骤中施加喷墨接收涂层进一步允许产生不同厚度的涂层。
出于与第一方面相同的目的,根据其第二独立方面的本发明是一种用于制造层压板的方法,该层压板包括根据本发明的第一方面或其优选地实施例的装饰纸层,其中,所述方法在至少包括提供所述装饰纸层和热固性树脂的步骤以及热压至少所述装饰纸层和所述热固性树脂的步骤,其中所述热固性树脂被固化。
优选地,提供所述树脂的所述步骤包括用树脂浸渍所述装饰纸层和/或提供与所述装饰纸层相邻的附加树脂层。优选地,根据本发明的装饰纸层提供有热固性树脂,例如三聚氰胺树脂,优选地在为其提供印刷图案之后,例如通过喷墨打印。出于这个原因,优选地,纸层仅在其一侧,即在被提供印刷的一侧设置有喷墨接收涂层。另一相对侧优选地未经处理,使得该相对侧显示其开始的纸层的原始孔隙率。然后可以将树脂基本上从底侧提供到纸芯中。为了允许对具有喷墨接收涂层的纸进行充分浸渍,可以将浸渍通道的速度调低,可以降低树脂的附着力,可以对浸渍进行加压和/或可以加热树脂,例如加热至30至70℃,优选地加热至30至50℃。
优选地,所述附加树脂层为浸渍有热固性树脂的透明或半透明纸层,设置在所述装饰纸层设置有印刷图案的一侧处。更具体地,透明或半透明纸层可以是所谓的覆盖层,即浸渍有热固性树脂例如三聚氰胺树脂的α-纤维素纸。
优选地,所述层压板是层压面板,其中,所述面板至少包括基材和设置在基材上的顶层,该顶层至少包括所述装饰纸层和所述热固性树脂。优选地,所述热压步骤导致所述顶层通过所述固化的热固性树脂粘附到所述基材上。
优选地,本发明的第一和/或第二方面的基纸层是不透明的和/或包含氧化钛作为增白剂。
优选地,施加在本发明的装饰纸层上的印刷图案覆盖所述纸层的大部分的表面,优选地80%或更多的表面。
优选地,所述基纸层在印刷之前或之后,以及在施加喷墨接收涂层之前或之后,具有的热固性树脂的量与纸的重量相比等于树脂干重的40%至250%。实验表明,此范围的施加树脂提供了足够的纸张浸渍,这在很大程度上避免了分裂,并且在很大程度上稳定了纸的尺寸。
优选地,在印刷之前或之后,以及在施加喷墨接收涂层之前或之后,基纸层具有这样的量的热固性树脂,使得至少纸芯被树脂浸透。当提供的湿树脂的量对应于纸重的至少1.5或至少2倍时,可以达到这种浸透。例如,表面重量为70克/平方米的纸可以用140克/平方米的湿树脂处理,即纸张重量的2倍,以在干燥时产生140克/平方米的处理过的纸,其具有浸透的芯。应该清楚的是,提供在纸层上的树脂不一定只存在于纸芯中,而是可以在纸的两个平面上形成表面层。然后喷墨接收涂层可以存在于纸的表面上,中间有这样的热固性树脂表面层。根据特定的实施例,纸层首先被浸渍或浸透,然后,至少在其要印刷的一侧,树脂被部分去除并且可能提供所述涂层或喷墨接收涂层。
优选地,获得的树脂提供纸层,即在提供热固性树脂之后,具有低于15%,更优选地10%或更低的相对湿度。
通常,无论是否提供树脂,纸张和喷墨接收涂层的相对湿度都低于15%,打印时最好为10%或更低。
优选地,为所述纸层提供热固性树脂的步骤包括在所述纸层上施加水和树脂的混合物。所述混合物的施加可能包括将纸层浸入所述混合物浴中和/或将所述混合物喷涂、喷射或以其他方式涂布在所述纸上。优选地,树脂以定量方式提供,例如通过使用一个或多个挤压辊和/或刮刀来设定添加到纸层中的树脂量。
优选地,所述热固性树脂是三聚氰胺基树脂,尤其是甲醛与三聚氰胺之比为1.4:2的三聚氰胺甲醛树脂。这种三聚氰胺基树脂是在压制操作中暴露于热时缩聚的树脂。缩聚反应产生水作为副产物。特别是对于这些类型的热固性树脂,即那些将水作为副产品生成的树脂,本发明是感兴趣的。产生的水,以及压制前热固性树脂中的任何水残留物,必须在很大程度上离开硬化树脂层,否则会被截留并导致硬化层失去透明度。可用的油墨层会阻碍蒸汽气泡扩散到表面,然而本发明提供了限制这种阻碍的措施。喷墨接收涂层在这方面是有益的,因为它可以提供额外的缓冲液来捕获这种逸出的蒸汽。当使用多孔和/或亲水的喷墨接收涂层时,例如使用二氧化硅和/或聚乙烯醇,在印刷机中固化纸层的热固性树脂时产生的一些水蒸气可以被该涂层吸收,使得该过程不太容易产生压制缺陷,例如封锁在水蒸气气泡中。导致类似缩聚反应的此类热固性树脂的其他实例包括脲-甲醛基树脂和酚醛基树脂。
优选地,纸层仅在施加喷墨接收涂层之后和印刷之后用树脂浸渍。以这种方式,喷墨接收涂层完全不受包含在用于浸渍目的的水-树脂混合物中的水的影响。
如上所述,本发明的第二方面的方法包括热压印刷和树脂提供纸层的步骤,至少以固化获得的树脂提供装饰纸的树脂。优选地,本发明的方法形成如上所述的DPL工艺的一部分,其中,本发明的印刷树脂提供的纸层被卷入堆叠体中以作为装饰层被压制。当然不排除本发明的方法将形成CPL(致密层压板)或HPL(高压层压板)工艺的一部分,其中,装饰层至少与多个树脂浸渍的芯纸层一起热压,例如所谓的牛皮纸,在装饰层下方形成基材,并且其中,获得的压制和固化的层压层或层压板,在高压层压板的情况下,胶合到另外的基材,例如刨花板或MDF或HDF板。
显然,通常和/或根据本发明的第二方面,可以使用任何类型的基材材料,例如上述刨花板、MDF、HDF板,或包含热塑性材料的板,或矿物板。包含热塑性材料的所述板可以是可能包含填料的闭孔发泡PVC板或可能包含填料的实心(即非发泡)PVC板,其中,填料含量可以或不高于芯材料的50重量百分比。这种填料可以是矿物填料,例如白垩或石灰,或有机填料,例如木材、竹子、草等。所述矿物板可以是水硬板或压制板。所述矿物板可以是石膏基板、纤维水泥板或另一种水泥基板,例如基于氧化镁的板,例如通过与氯化镁和/或硫酸镁反应而固化。
优选地,在印刷之后将另外的树脂层施加在印刷图案之上,例如,通过覆盖层,即树脂提供的载体层或液体涂层,优选地在装饰层铺设在基材上时,或者松散地或者已经连接或粘附到基材上。
本发明的基纸层可以是着色的、着色素的和/或染色的基纸。使用着色和/或染色基层能够进一步限制沉积油墨的干重以获得特定图案或颜色。在纸的情况下,优选地在纸张形成之前将染料或颜料添加到纸浆中。根据替代方案,待印刷的所述基纸层上的油墨接收涂层被着色或用有色颜料着色。然而,根据一般公开内容,包含在喷墨接收涂层中的颜料优选地为无色或白色。
显然,根据本发明的最优选地实施例,纸层在印刷时仍然是柔性的,并且纸层仅在印刷后贴附或放置在板状基材上。根据变体,纸层在印刷时已经附着或松散地放置在板状基材上。可以通过尿素基、苯酚基、三聚氰胺基、聚氨酯基胶和类似粘合剂实现与基材的可能附着。这种附接可以通过压制处理获得,无论是否加热压制处理。
优选地,本发明第二方面的方法还包括在与印刷纸层相对的可能基材的表面上施加对置层或平衡层的步骤。
优选地,板状基板、可能的对置层和可能的透明或半透明层的相互粘附在一次且相同的压制处理中获得。根据第二方面的最优选地实施例,这些步骤在DPL过程中进行。
根据本发明最重要的示例,重量在每平方米60至90克之间的标准印刷纸,如用于凹版印刷的印刷纸,设置有根据第一方面的喷墨接收涂层,并且也根据第一方面,使用带有水性颜料油墨的数字喷墨印刷机用木纹印刷。随后通过标准浸渍通道为印刷纸层提供三聚氰胺树脂;即通过滚筒、浸没、喷射和/或喷涂设备。然后将提供树脂的纸层干燥直到达到小于10%,优选地约7%的残余湿度。堆叠体由树脂提供的对置层、板状基板、印刷的树脂提供的纸层和形成所谓的覆盖层树脂提供的纸层形成。然后在约180-210℃的温度和大于20巴,例如38巴的压力下,在少于30秒的时间内压制该堆叠体。在压制堆叠体的表面时,接触结构化压制元件,例如结构化压板,并且在获得的层压面板的顶层中形成浮雕。可能获得的浮雕可以与树脂提供的纸层的印刷图案对齐形成。
更清楚的是,第一方面的装饰纸层适合用作制造地板、家具板、天花板和/或墙板的方法中的装饰纸,尤其是根据其DPL方法。
显然,上述装饰纸层可能必须分开以获得它们各自的最终尺寸。通过DPL压制处理或类似处理获得的面板优选被锯切或以其他方式分割。当然不排除获得的面板的其他处理。
更清楚的是,装饰纸层的进一步施加优选地通过DPL压制处理。然而,也可以实施几种替代应用。例如,这种纸层,优选地在印刷之后,可以粘合到基材上,并通过酸固化、UV固化或电子束固化透明漆来抛光。
下面通过示例进一步阐明本发明,但不限制特征。
示例:
为重量为70克/平方米的基纸层提供干燥速率为2.52克/平方米的喷墨接收涂层,其中喷墨接收涂层主要包含0.42克/平方米的交联聚乙烯醇、1克/平方米的沉淀二氧化硅颗粒、1克/平方米的氯化钙和0.1克每平方米的其他添加剂。如根据EN13320,即通过使用发射波长为632.8nm的激光的动态光散射技术并在90度散射角下测量,沉淀二氧化硅颗粒具有5.3微米的d50值、3微米的d10和10微米的d90。这种涂层纸被标记为纸A。
使用预先计量的施加方法将油墨施加到如此处理的纸上,以及市售喷墨质量纸(纸B)上,该纸包括粒度d90小于500纳米的气相二氧化硅颗粒。然后通过Byk Spectro(测色仪)指南分析施加的油墨涂层,以测量L、a和b值。然后用分光光度计测量OD(光密度)值。然后用三聚氰胺树脂浸渍所获得的涂布纸并与浸渍三聚氰胺的α纤维素纸(覆盖层)一起热压到MDF板材料上。根据1992年8月15日发布的“ISO2409:1992(E)油漆国际标准”通过横切试验评估粘合力或层压强度。切口和横切是在获得的层压板的表面上以格子形式并结合Tesa(德莎)胶带TM4104PVC胶带制作的,切口之间的间距为1毫米,使用600克的重量。根据下表进行粘合性的评价。
在此,期望低于2的评价值。所得结果列于下表中,从中可以看出,喷墨接收涂层中较大的油墨颜料与更大的二氧化硅颗粒的组合产生了最佳结果,即可接受的附着力和高颜色密度的组合。
上述结果在卷对卷型(KBA-Rotajet)单程数字喷墨印刷机上进一步得到验证,打印宽度为1600毫米。同样对于其他油墨颜色甚至混合颜色,获得了具有良好颜色密度的附着力增强。
本发明决不限于上述实施例,但是这样的方法和装饰纸层可以根据几种变体来实现,而不脱离本发明的范围。
Claims (11)
1.一种装饰纸层,包括基纸层、喷墨接收涂层和图案,所述图案通过数字化地施加来自一组多种不同颜色的油墨的油墨而在所述喷墨接收涂层上形成,其特征在于,所述油墨中的至少一种油墨包含平均粒径大于150nm的有色颜料,并且其中,所述喷墨接收涂层包含二氧化硅颜料,其中,所述二氧化硅颗粒是沉淀二氧化硅颗粒和/或硅胶颗粒和/或具有比所述有色颜料的所述平均粒径大至少5倍的平均粒度的颗粒和/或具有1至40微米,优选地1至15微米,或2至12微米的平均粒度的颗粒,其中,所述平均粒度和所述平均粒径通过激光散射粒度测定技术测定。
2.根据权利要求1所述的装饰纸层,其特征在于,所述基纸层的厚度在50-200μm之间,优选地在60-130μm之间。
3.根据前述权利要求中任一项所述的装饰纸层,其特征在于,所述有色颜料包括红色颜料,所述红色颜料选自由C.I.红色颜料122、C.I.红色颜料144、C.I.红色颜料176、C.I.红色颜料188、C.I.红色颜料207、C.I.红色颜料242、C.I.红色颜料254、C.I.红色颜料272、任何上述红色颜料的任意的混合晶体、喹吖啶酮、喹吖啶酮混合物和喹吖啶酮衍生物组成的组。
4.根据前述权利要求中任一项所述的装饰纸层,其特征在于,所述二氧化硅颗粒能在所述基纸层的所述表面上使用。
5.根据权利要求4所述的装饰纸层,其特征在于,所述二氧化硅颗粒是沉淀二氧化硅颗粒或硅胶颗粒,具有的平均粒度为1至40微米,优选地1至15微米,或2至12微米。
6.根据前述权利要求中任一项所述的装饰纸层,其特征在于,所述基纸层的芯不含或基本上不含二氧化硅颗粒。
7.用于制造层压板的方法,所述层压板包括根据前述权利要求中任一项所述的装饰纸层,其中,所述方法至少包括提供所述装饰纸层和热固性树脂的步骤以及热压至少所述装饰纸层和所述热固性树脂的步骤,其中,所述热固性树脂被固化。
8.根据权利要求7所述的方法,其特征在于,提供所述树脂的步骤包括用树脂浸渍所述装饰纸层,和/或提供与所述装饰纸层相邻的附加树脂层。
9.根据权利要求8所述的方法,其特征在于,所述附加树脂层是透明或半透明纸层,所述透明或半透明纸层浸渍有热固性树脂并且设置在所述装饰纸层的设置有印刷图案的一侧处。
10.根据权利要求7至9中任一项所述的方法,其特征在于,所述层压板是层压面板,其中,所述面板至少包括基材和设置在所述基材上的顶层,所述顶层至少包括所述装饰纸层和所述热固性树脂。
11.根据权利要求10所述的方法,其特征在于,热压的步骤导致所述顶层通过固化的所述热固性树脂粘附到所述基材上。
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