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
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
  • D21H17/20—Macromolecular organic compounds
  • D21H17/33—Synthetic macromolecular compounds
  • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
  • D21H17/20—Macromolecular organic compounds
  • D21H17/33—Synthetic macromolecular compounds
  • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
  • D21H17/57—Polyureas; Polyurethanes
• • 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
  • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
  • D21H17/675—Oxides, hydroxides or carbonates
• • 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
  • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
  • D21H17/72—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic material
• • 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
  • D21H19/385—Oxides, hydroxides or carbonates
• • 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
  • D21H19/58—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
  • D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than 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
  • 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
• • 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
  • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
  • D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod
  • D21H25/14—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod the body being a casting drum, a heated roll or a calender
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31855—Of addition polymer from unsaturated monomers
  • Y10T428/3188—Next to cellulosic
  • Y10T428/31895—Paper or wood
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31942—Of aldehyde or ketone condensation product
  • Y10T428/31949—Next to cellulosic
  • Y10T428/31964—Paper
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31971—Of carbohydrate
  • Y10T428/31993—Of paper

Definitions

• the invention relates to pigment coated on one side Thin film based on prepregs.
• Decorative films with a finish surface are decorative Surface materials for chipboard and MDF boards (medium density fibreboard) in furniture making. This Decorative films are soaked in synthetic resin or resin-impregnated and afterwards surface treated, decoratively printed or unprinted paper webs in one under pressure and warmth state that can no longer be reactivated.
• Impregnation process is between thermosetting decorative films with fully impregnated core (off line process) and Decorative films based on pre-impregnated materials (online process) distinguished on which subsequently one Finish coating can be made. Consequently creates a decorative film that has a finished surface owns.
• the desired opacity and coloring become the paper pulp and possibly also lightfastness Pre-impregnated.
• Pre-impregnates or decorative films with a mass per unit area of between 20 and 80 g / m 2 are referred to as thin-film films.
• These thin-film films are usually characterized by good flatness and thus easy laminating, while the printability with water-based or solvent-based gravure inks only satisfies moderate demands due to the limited smoothability due to the synthetic resin content.
• the object of the invention was therefore to provide thin-film films mass as low as possible to provide that with sufficient gap strength good flatness and equally good or even Faster roll lamination with aqueous adhesives exhibit, but also by a very good Characterize deep printability and paintability.
• the thin film should be comparable area-related mass, if possible a higher one Lightfastness and opacity than normal Japanese papers and have better strengths than known pre-impregnates.
• pulp fiber mixtures with high absorbency and Strength for example from eucalyptus pulp and Pine wood sulfate pulp.
• a Ground sizing is not essential and that Cellulose fiber mixture can vary depending on the desired Intended use contain white pigments or color pigments.
• the pigment coating formed on one side of the thin film has a mass of 1 to 8 g / m 2 , for example 3, 5 or 7 g / m 2 .
• the ratio of pigment to binder in the pigment coat can be 1: 0.05 to 1: 2 and in a particularly preferred embodiment 0.05 to 1: 2 or 1: 0.08 to 1: 0.35, based on the solids content.
• white pigments such as kaolin, calcium carbonate, aluminum hydroxide, talc, Titanium dioxide or color pigments, such as iron oxide pigments, Carbon black, copper, aluminum, other metal pigments or organic color pigments used alone or in a mixture optionally with the addition of liquid dyes.
• color pigments such as iron oxide pigments, Carbon black, copper, aluminum, other metal pigments or organic color pigments used alone or in a mixture optionally with the addition of liquid dyes.
• Binders such as starch, polyvinyl alcohol, Carboxymethyl cellulose, polymer dispersions based of acrylic acid, acrylic acid ester, styrene, butadiene, Contain vinyl acetate or acrylonitrile.
• the pigment line contains 1 up to 30% by weight, based on the pigment content, melamine resin, Urea resin, phenolic resin or glyoxal resin. Usual Crosslinking agents and penetration aids can be in the Pigment line can be included.
• the pigment line has barrier properties aqueous or solvent-containing substances, such as Varnishes and printing inks.
• aqueous or solvent-containing substances such as Varnishes and printing inks.
• flaky pigments such as kaolin, aluminum hydroxide or talc is particularly preferred.
• Aqueous can be used to impregnate the base paper Polymer dispersions based on the above Monomers and melamine, urea, phenol or Glyoxal resins and their mixtures with polymer dispersions be used. By adding a maximum of about ten parts by weight (solid) of white pigment Impregnating liquid can reduce the opacity of white pre-impregnates can still be increased.
• the resin intake can be 5 to 30 % By weight, based on the weight of the base paper, preferably 5 up to 15% by weight.
• impregnation mixtures can be further Auxiliaries, such as wetting agents, viscosity regulators, Non-stick and penetration aids, pigments, Dyes and defoamers can be added.
• the pigment coat can preferably by means of so-called thin-layer technology within the Paper machine can be applied to the base paper. This procedure is described in Das Paper, 1991, Issue 10 A, p. V120-V124 and Kliblatt für Textilfabrikation, 1993, Issue 10, pp. 390-393 and 1994, Issue 17, pp.671-676.
• Thin film has the so-called differential Coating style of driving proved to be particularly advantageous in "Wochenblatt für Textilfabrikation (1992) No. 6, S.198-205 ".
• this Application technology becomes thin on one side Pigment coat using the aforementioned Thin coating technology applied to the paper web and at the same time the other is impregnated Paper side in the roller nip (swamp formation).
• the impregnation turns the paper structure into Depends on the later processing requirements measurable in its elasticity or brittleness / flatness changed.
• the invention is distinguished Decorative film with the impregnated paper back a fast and firm connection with the laminating chipboard or MDF board. This also contributes the physico-chemical surface design of the Thin film significantly.
• the impregnated and surface-pigmented thin-film films can be smoothed on one side, with one on-line smoothing using a soft or machine calender Preserving the opacity of the paper as special has proven advantageous.
• the one-sided pigment-coated Thin film based on prepregs have a sufficiently good flatness and Gap resistance and on the pigment-coated side very good printability and paintability.
• Synthetic resin impregnated back of the paper allows a quick and easy gluing on Fiberboard.
• the thin-film film according to the invention is also for other applications where paper backing is suitable excellent one-sided printability or Coatability with aqueous or solvent-based Media are desired and also very good ones Can be glued or laminated to the back of the paper with different substrate materials becomes.
• Examples include wall coverings, Poster materials and special cover papers for Called packaging.
• a light brown colored base paper of 45 g / m 2 with a fiber composition of 80% eucalyptus and 20% pine sulfate pulp without bulk sizing and with a filler insert of 25 was placed on an approximately 2.30 m wide paper machine with a machine speed of 400 m / min kg of titanium dioxide per ton of fibrous material produced and provided on one side with a clay pigment coat of high binder content of 3 to 4 g / m 2 on a two-roll applicator (film press) using the differential coating method and impregnated on the back with a synthetic resin mixture of acrylate dispersion and urea resin.
• the resin absorption was about 10%, based on the weight of the base paper.
• the paper was then smoothed off line on one side on the pigment-coated side on a technical soft calender.
• the properties of the paper according to the invention achieved in this way are compared with the paper properties of conventional Japanese films and pre-impregnates of comparable mass per unit area and color.
• the single-layer pigment-coated thin-film film according to the invention based on "pre-impregnate" of 45 g / m 2 showed in the laboratory test compared to conventional furniture pre-impregnates of 53 g / m 2 better printability in gravure printing and a higher gloss after coating with aqueous acrylate lacquer (9 g / m 2 varnish application) on the pigmented paper top as well as a faster knocking away of the aqueous laminating adhesives (based on acrylate or urea) on the back of the paper (see also water absorption values). From this it can be concluded that the paper according to the invention can be better bonded / laminated to the fiberboard. The somewhat poorer flatness should not have a negative impact on the laminating process. In contrast, the coverage of the fiberboard is somewhat poorer due to the lower ash content and the slightly lower opacity associated with it. In addition, the light fastness is worse.
• the thin film according to the invention Compared to conventional Japanese films, the thin film according to the invention a slightly better Printability in gravure, a significantly better one Paint level and faster knocking away of the adhesive on the back of the paper (improved stickability / laminability).
• the cover of the fiberboard is due to the somewhat higher opacity of the paper according to the invention better.
• the light fastness is compared to the conventional one Japanese film light due to the surface pigmentation better.
• Example 1 Analogously to Example 1, a white (bleached) base paper of 47 g / m 2 with a fiber composition of 80% eucalyptus and 20% pine sulfate pulp and with a filler insert of 50 kg titanium dioxide per ton of fiber was produced on the paper machine and analogously to Example 1 Apply the pigment coating (clay) on one side using the "differential coating” method and impregnate on the back.
• the paper was then used online of a soft calender smoothed.
• a white (bleached) base paper of 80 g / m 2 with a fiber composition of 80% eucalyptus and 20% pine sulfate pulp and with a filler insert of 250 kg clay and 50 kg talc per t fiber was used on the paper machine produced.
• the paper stock was fully sized in size (resin size) in order to limit the penetration into the paper structure of the impregnating or coating compositions subsequently applied by means of the “differential coating” method.
• the back of the paper web was, however, with a Latex / synthetic resin mixture analogous to Examples 1 and 2 partially impregnated.
• the impregnation resin absorption was therefore only 5% of the raw paper weight.
• This paper which is referred to as printing base paper and is slightly pigmented on the basis of "pre-impregnate"
• the opacity must influence the influence of the higher mass per unit area of printing base paper will.
• Example 1 a light brown colored base paper with a weight per unit area of about 45 g / m 2 was produced, the coloring not being carried out using a liquid dye but using iron oxide pigments.
• the back of the paper web was, however, with the impregnated with the same latex / synthetic resin mixture as in the Examples 1 to 3.
• the impregnation resin absorption was 30% of the Raw paper weight.
• a colored base paper with a basis weight of about 45 g / m 2 was produced in accordance with Example 4.
• the one-sided pigment coating of the paper web was carried out with a mixture of acrylic latex and urea resin in a ratio of 90:10 (solid), to which about twice the amount of clay (solid) was added.
• the back of the paper web was impregnated with the same latex / synthetic resin mixture as in Examples 1 and 2.
• the impregnation resin absorption was about 10% of the Raw paper weight.
• the product Compared to the papers produced according to Examples 1, 2 and 4, the product has slightly better printability and varnishability and higher elasticity.

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• Paper (AREA)
• Laminated Bodies (AREA)
• Duplication Or Marking (AREA)
• Magnetic Heads (AREA)
• Inorganic Insulating Materials (AREA)

Applications Claiming Priority (4)

Publications (2)

Family

ID=26035718

Family Applications (1)

Country Status (13)

Cited By (5)

Families Citing this family (7)

Citations (5)

Family Cites Families (8)

• 1998
  • 1998-04-04 EP EP19980106207 patent/EP0870872B1/fr not_active Expired - Lifetime
  • 1998-04-04 ES ES98106207T patent/ES2185076T3/es not_active Expired - Lifetime
  • 1998-04-04 AT AT98106207T patent/ATE230048T1/de not_active IP Right Cessation
  • 1998-04-04 DE DE59806662T patent/DE59806662D1/de not_active Expired - Lifetime
  • 1998-04-07 CA CA 2234595 patent/CA2234595A1/fr not_active Abandoned
  • 1998-04-08 US US09/056,944 patent/US6001490A/en not_active Expired - Fee Related
  • 1998-04-08 AU AU60755/98A patent/AU728365B2/en not_active Ceased
  • 1998-04-10 PL PL325772A patent/PL191900B1/pl not_active IP Right Cessation
  • 1998-04-10 TW TW87105493A patent/TW402651B/zh not_active IP Right Cessation
  • 1998-04-11 KR KR1019980012981A patent/KR19980081326A/ko not_active Application Discontinuation
  • 1998-04-12 CN CN98106907A patent/CN1125205C/zh not_active Expired - Fee Related
  • 1998-04-13 BR BR9801042A patent/BR9801042A/pt not_active IP Right Cessation
  • 1998-04-13 JP JP11779998A patent/JPH10292291A/ja active Pending

Patent Citations (5)

Non-Patent Citations (1)

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