EP0477258B1 - Upper sheet for carbon-copy system - Google Patents
Upper sheet for carbon-copy system Download PDFInfo
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- EP0477258B1 EP0477258B1 EP90909687A EP90909687A EP0477258B1 EP 0477258 B1 EP0477258 B1 EP 0477258B1 EP 90909687 A EP90909687 A EP 90909687A EP 90909687 A EP90909687 A EP 90909687A EP 0477258 B1 EP0477258 B1 EP 0477258B1
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- Prior art keywords
- upper sheet
- sheet according
- layer
- weight
- pigment
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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
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
Definitions
- the invention relates to a first sheet for carbonless copy sets made from pressure-sensitive carbonless paper according to the preamble of claim 1.
- Such first sheets which are also commercially available under the name CB sheet (coated back), are known.
- CB sheet coated back
- the capsule-coated back of the first sheet is also printed, the printed image is visible through the thin paper and disturbs the visual impression of the top.
- a carbon copy rate usually consists of a first sheet (CB), one or more middle sheets (CFB) and a final sheet (CF).
- CB first sheet
- CFB middle sheets
- CF final sheet
- the glue adhesion for the purpose of functional removal of one set of blocks between the CF underside and the CB top should be less than that between the CB underside and the CFB top or the CFB underside and the CF top.
- first sheets that were not coated on the top side the task was solved by setting by means of surface preparation or regulation of the absorbency of the corresponding back sides. However, these measures failed for the first sheets coated with pigments on the upper side.
- EP-A-0 274 886 already proposed to additionally provide the coated top side with a synthetic, reactive sizing agent or with a line structure agent or with both agents in order to ensure the self-release gluing.
- a disadvantage of this proposal is that synthetic, reactive sizing agents have a certain dwell time for complete reaction Temperature range above 100 o C need. If this is not the case, e.g. B. if the coating unit is driven too quickly or if the drying capacity of the coating unit is a bottleneck, the synthetic sizing agent does not harden - with the result that the degree of glue or water repellency required for the self-separating gluing of the CB sheet provided with a printable top line does not is achieved.
- the object is achieved in a first sheet according to the preamble of claim 1 in that the top coating contains non-reactive hydrophobicizing agents in a proportion of 5 to 15% by weight, based on the dry content of the coating.
- Non-reactive water repellents such as wax glues, wax emulsions, metal salts of fatty acids, such as. B. stearic acid, ester waxes, oxidized polyethylenes, copolymer dispersions and dispersions from organic prepolymers are known per se and have so far been used in breading technology mainly in combination with gelatinized starch in glue liquors the size press used within the paper machine, see also the literature reference "Handbuch der Textil- und Pappefabrikation", 1971, page 1.282 ff. under the heading surface sizing with further references.
- Wax glues as well as metal and ammonium salts of fatty acids, especially stearic acid, are also occasionally used in coating colors for printing papers in order to improve the internal sliding behavior of the coating pigments when calendering, the printing ink level during the printing process and the so-called dust behavior.
- the amount used in the coating color was limited to 0.3 to 1.2% by weight of dry, based on the dry content of the coating color.
- EP-A-0 274 886 also makes use of this knowledge by indicating on page 5, lines 42 to 43 lubricants, in particular queum stearates, as a further coating color additive, the proportion according to Examples 2 to 6 and 8 each being 0.5% by weight % should be. This document does not suggest an improvement in the self-separation behavior through the addition of
- Non-reactive water repellents are understood to mean additives to the coating color for the top coat layer which, after the coating color has been applied and the subsequent drying, have no further components, such as, for. B. hardener or crosslinker, and do not require high temperature and residence time for reaction with OH groups and for the formation of the hydrophobicity effect.
- the Ca or Na salt of a fatty acid such as. B. stearic acid
- the ammonium salt of stearic acid has proven itself, but it should be noted that the viscosity of the coating color produced therewith increases with higher proportions, so that the person skilled in the art must select the coating units then required for applying the coating from the doctor or rod metering devices.
- a further useful hydrophobizing agent is a mixture of glossy ester waxes and low-molecular, oxidized polyethylene.
- Such blends are e.g. B. as aqueous dispersions with a solids content of 30 wt.%, An average particle size of 0.2 microns and a pH of 8.5 to 9.0 in the trade and are sold under the trade name "Wükonil PW”.
- montan wax glue made from montan wax, especially in its bleached form. Further information on montan wax glue is given in the reference "Wochenblatt für Textilfabrikation 82 (1954), page 623.
- Another non-reactive hydrophobizing agent is available in the form of an aqueous dispersion of an organic prepolymer, as described in the technical data sheet from Schill & Seilacher under the product name "UKASOL NL". According to the invention, these water repellents can be used individually or in a mixture with one another.
- pigments for the top coating all pigments known in paper coating technology, such as kaolin, calcined kaolin, ground or precipitated calcium carbonate, talcum individually or in a mixture together with a conventional binder, such as, for. B. styrene butadiene latex can be used.
- a conventional binder such as, for. B. styrene butadiene latex
- the person skilled in the art has no limits here; he will select the pigments based on the requirements for whiteness, gloss and the required smoothness of the top coating of the first sheet.
- the proportion of these natural pigments in the total proportion of the pigment mixture can itself be chosen as desired, but is preferably selected to be 70 to 90 parts by weight, based on 100 parts by weight of dry pigment mixture.
- the top coating also contains synthetic pigments such as precipitated silica, titanium dioxide or finely divided aluminum hydroxide in addition to the natural pigments individually or in mixtures.
- synthetic pigments such as precipitated silica, titanium dioxide or finely divided aluminum hydroxide in addition to the natural pigments individually or in mixtures. The selection is based on the requirements of printability and printability as well as the desired final whiteness of the coating. If high opacity is to be achieved, titanium dioxide is indicated as pigment. If special requirements are placed on the oil adsorption of the printing ink, the addition of precipitated silica is recommended.
- the proportion of synthetic pigments is preferably 10 to 30 parts by weight, based on 100 parts by weight of the total pigment mixture dry.
- the expert is free to choose the application weight of the top coating. It has been shown that in the case of such first sheets, an application weight of less than 4 g / m 2 of a dry coating color does not lead to the desired success in terms of opacity, whiteness and improvement in printability. If, on the other hand, the application weight is chosen too high (over 12 g / m2), the carbonless properties of the first sheet deteriorate. It has therefore proven to be advantageous to select the application weight between 4 and 10 g / m2. An application weight of 5 to 7 g / m2 is particularly preferred.
- the formulations according to Examples I to IV were based on a wood-free base paper of 48 g / m2 basis weight in a quantity of 6 g / m2, which was glued in the mass and provided with a preparation of starch in the size press and was customary for the production of pressure-sensitive carbonless papers. calculated as dry matter - applied. After applying the top coat, drying and Satinage was then applied to the back of the actual capsule line and also dried.
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Abstract
Description
Die Erfindung betrifft ein Erstblatt für Durchschreibesätze aus druckempfindlichen Durchschreibepapieren nach dem Oberbegriff des Anspruchs 1.The invention relates to a first sheet for carbonless copy sets made from pressure-sensitive carbonless paper according to the preamble of claim 1.
Derartige Erstblätter, die auch unter der Bezeichnung CB-Blatt (coated back) im Handel sind, sind bekannt Die Tendenz, derartige Erstblätter mit immer niedrigerem Flächengewicht herzustellen, führte dazu, daß die Opazität dieser Blätter zu wünschen übrig läßt. Insbesondere dann, wenn auch die kapselbeschichtete Rückseite des Erstblattes zusätzlich bedruckt wird, ist das Druckbild durch das dünne Papier hindurch sichtbar und stört den optischen Eindruck der Oberseite.Such first sheets, which are also commercially available under the name CB sheet (coated back), are known. The tendency to produce such first sheets with an ever lower basis weight led to the opacity of these sheets leaving something to be desired. In particular, if the capsule-coated back of the first sheet is also printed, the printed image is visible through the thin paper and disturbs the visual impression of the top.
Es wurde bereits versucht, eine Opazitätserhöhung bei derartigen Papieren durch Erhöhung des Füllstoffgehaltes in dem Erstblatt wie auch durch Anordnung einer nichtreaktiven Strichbeschichtung auf der Oberseite zu erreichen. Dabei wurde festgestellt, daß übliche Strichbeschichtungen zwar die Opazität und Bedruckbarkeit der Oberseite verbessern können, andererseits aber die für Durchschreibesätze erforderliche Selbsttrennverleimung nicht mehr gegeben ist.Attempts have already been made to increase the opacity of such papers by increasing the filler content in the first sheet and also by arranging a non-reactive coating on the top. It was found that conventional line coatings do have opacity and Can improve the printability of the top, but on the other hand the self-separation gluing required for copy sets is no longer available.
Unter Selbsttrennverleimung wird dabei folgendes verstanden. Ein Durchschreibesatz besteht in der Regel aus einem Erstblatt (CB), einem oder mehreren Mittelblättern (CFB) und einem Schlußblatt (CF). Für den Gebrauch werden mehrere dieser Sätze zu einem Block zusammengefaßt und an einer Schmalseite miteinander verleimt. Dabei soll die Leimhaftung zwecks funktionsgerechter Ablösung jeweils eines Satzes von dem Block zwischen CF-Unterseite und CB-Oberseite geringer sein als zwischen CB-Unterseite und CFB-Oberseite bzw. CFB-Unterseite und CF-Oberseite. Bei nicht oberseitenbeschichteten Erstblättern war die Aufgabe durch Einstellung mittels Oberflächenpräparation bzw. Regulierung der Saugfähigkeit der entsprechenden Rückseiten gelöst. Diese Maßnahmen versagten jedoch bei den mit Pigmenten auf der Oberseite gestrichenen Erstblättern.Self-separating gluing is understood to mean the following. A carbon copy rate usually consists of a first sheet (CB), one or more middle sheets (CFB) and a final sheet (CF). For use, several of these sets are combined into a block and glued together on a narrow side. The glue adhesion for the purpose of functional removal of one set of blocks between the CF underside and the CB top should be less than that between the CB underside and the CFB top or the CFB underside and the CF top. In the case of first sheets that were not coated on the top side, the task was solved by setting by means of surface preparation or regulation of the absorbency of the corresponding back sides. However, these measures failed for the first sheets coated with pigments on the upper side.
Die EP-A-0 274 886 schlug bereits vor, die gestrichene Oberseite zusätzlich mit einem synthetischen, reaktiven Leimungsmittel oder mit einem Strichstrukturmittel oder mit beiden Mitteln zu versehen, um die Selbsttrennverleimung zu gewährleisten.EP-A-0 274 886 already proposed to additionally provide the coated top side with a synthetic, reactive sizing agent or with a line structure agent or with both agents in order to ensure the self-release gluing.
Nachteilig bei diesem Vorschlag ist, daß synthetische, reaktive Leimungsmittel für die vollständige Durchreaktion eine bestimmte Verweilzeit bei einem Temperaturbereich oberhalb 100 oC benötigen. Ist diese nicht gegeben, z. B. wenn das Streichaggregat zu schnell gefahren wird oder wenn die Trockenkapazität des Streichaggregates einen Engpaß darstellt, härtet das synthetische Leimungsmittel nicht aus - mit der Folge, daß der für die Selbsttrennverleimung erforderliche Leim- oder Hydrophobierungsgrad des mit einem bedruckbaren Oberseitenstrich versehenen CB-Blattes nicht erreicht wird.A disadvantage of this proposal is that synthetic, reactive sizing agents have a certain dwell time for complete reaction Temperature range above 100 o C need. If this is not the case, e.g. B. if the coating unit is driven too quickly or if the drying capacity of the coating unit is a bottleneck, the synthetic sizing agent does not harden - with the result that the degree of glue or water repellency required for the self-separating gluing of the CB sheet provided with a printable top line does not is achieved.
Die vorliegende Erfindung hat sich daher die Aufgabe gestellt, ein Erstblatt für Durchschreibesätze aus druckempfindlichen Durchschreibepapieren zur Verfügung zu stellen, das die oben genannten Nachteile nicht aufweist und einen konstanten, von den Trocknungsbedingungen unabhängigen Hydrophobierungsgrad ausweist und damit eine sichere Selbsttrennverleimung ermöglicht.It is therefore the object of the present invention to provide a first sheet for carbonless copy sets made from pressure-sensitive carbonless paper which does not have the disadvantages mentioned above and which exhibits a constant degree of hydrophobicity which is independent of the drying conditions and thus enables reliable self-separating gluing.
Die Aufgabe wird bei einem Erstblatt gemäß dem Gattungsbegriff von Anspruch 1 dadurch gelöst, daß die Oberseitenbeschichtung nichtreaktive Hydrophobierungsmittel in einem Anteil von 5 bis 15 Gew.%, bezogen auf den Trockengehalt der Beschichtung, enthält.The object is achieved in a first sheet according to the preamble of claim 1 in that the top coating contains non-reactive hydrophobicizing agents in a proportion of 5 to 15% by weight, based on the dry content of the coating.
Nichtreaktive Hydrophobierungsmittel wie Wachsleime, Wachsemulsionen, Metallsalze von Fettsäuren, wie z. B. Stearinsäure, Esterwachse, oxidierte Polyethylene, Copolymerdispersionen und Dispersionen aus organischen Prepolymeren sind an sich bekannt und wurden in der Paniertechnik bisher hauptsächlich in Kombination mit verkleisterter Stärke in Leimflotten zur Anwendung in der Leimpresse innerhalb der Papiermaschine eingesetzt, s. auch die Literaturstelle "Handbuch der Papier- und Pappefabrikation", 1971, Seite 1.282 ff. unter dem Stichwort Oberflächenleimung mit weiteren Literaturhinweisen.Non-reactive water repellents such as wax glues, wax emulsions, metal salts of fatty acids, such as. B. stearic acid, ester waxes, oxidized polyethylenes, copolymer dispersions and dispersions from organic prepolymers are known per se and have so far been used in breading technology mainly in combination with gelatinized starch in glue liquors the size press used within the paper machine, see also the literature reference "Handbuch der Papier- und Pappefabrikation", 1971, page 1.282 ff. under the heading surface sizing with further references.
Wachsleime sowie Metall- und Ammoniumsalze von Fettsäuren, insbesondere Stearinsäure, werden vereinzelt auch in Streichfarben für Druckpapiere eingesetzt, um das innere Gleitverhalten der Strichpigmente beim Satinieren, den Druckfarbenstand beim Bedruckvorgang sowie das sogenannte Staubverhalten zu verbessern. Die Einsatzmenge in der Streichfarbe beschränkte sich dabei auf 0,3 bis 1,2 Gew.% atro, bezogen auf den Trockengehalt der Streichfarbe.Wax glues as well as metal and ammonium salts of fatty acids, especially stearic acid, are also occasionally used in coating colors for printing papers in order to improve the internal sliding behavior of the coating pigments when calendering, the printing ink level during the printing process and the so-called dust behavior. The amount used in the coating color was limited to 0.3 to 1.2% by weight of dry, based on the dry content of the coating color.
Von dieser Erkenntnis macht auch die EP-A-0 274 886 Gebrauch, indem auf Seite 5, Zeile 42 bis 43 Gleitmittel, insbesondere Caciumstearate als weiterer Streichfarbenzusatz angegeben werden, wobei der Anteil gemäß den Beispielen 2 bis 6 und 8 jeweils 0,5 Gew.% betragen soll. Eine Verbesserung des Selbsttrennverhaltens durch die Zugabe von Caciumstearat wird durch diese Schrift nicht nahegelegt.EP-A-0 274 886 also makes use of this knowledge by indicating on page 5, lines 42 to 43 lubricants, in particular cacium stearates, as a further coating color additive, the proportion according to Examples 2 to 6 and 8 each being 0.5% by weight % should be. This document does not suggest an improvement in the self-separation behavior through the addition of cacium stearate.
Es hat sich nun überraschenderweise gezeigt, daß Erstblätter für Durchschreibesätze aus druckempfindlichen Durchschreibepapieren mit einer ausgezeichneten Oberseitenbe- und Verdruckbarkeit und einem guten Selbsttrennverhalten zur Verfügung gestellt werden können, wenn der Anteil des nichtreaktiven Hydrophobierungsmittels in der Oberseitenstrichschicht zwischen 5 und 15 Gew.%, bezogen auf den Trockengehalt der Beschichtung, gewählt wird. Unter nichtreaktiven Hydrophobierungsmitteln werden dabei solche Zusätze zur Streichfarbe für die Oberseitenstrichschicht verstanden, die nach dem Auftragen der Streichfarbe und der nachfolgenden Trocknung keine weiteren Komponenten, wie z. B. Härter oder Vernetzer, und keine hohe Temperatur und Verweilzeit zur Reaktion mit OH-Gruppen und zur Ausbildung des Hydrophobieeffektes benötigen.It has now surprisingly been found that first sheets for carbonless copy sets made of pressure-sensitive carbonless paper with excellent top side printability and printability and good self-separation behavior can be provided if the proportion of non-reactive hydrophobizing agent in the top coat layer between 5 and 15% by weight, based on the dry content of the coating, is selected. Non-reactive water repellents are understood to mean additives to the coating color for the top coat layer which, after the coating color has been applied and the subsequent drying, have no further components, such as, for. B. hardener or crosslinker, and do not require high temperature and residence time for reaction with OH groups and for the formation of the hydrophobicity effect.
Als brauchbare, nichtreaktive Hydrophobierungsmittel können das Ca- oder Na-Salz einer Fettsäure, wie z. B. Stearinsäure, eingesetzt werden. Insbesondere hat sich das Ammoniumsalz der Stearinsäure bewährt, wobei jedoch zu beachten ist, daß bei höheren Anteilen die Viskosität der damit hergestellten Streichfarbe ansteigt, so daß der Fachmann die dann notwendigen Streichaggregate zum Auftragen der Beschichtung unter den Rakel- oder Stabdosiervorrichtungen auswählen muß.As a useful, non-reactive hydrophobicizing agent, the Ca or Na salt of a fatty acid, such as. B. stearic acid can be used. In particular, the ammonium salt of stearic acid has proven itself, but it should be noted that the viscosity of the coating color produced therewith increases with higher proportions, so that the person skilled in the art must select the coating units then required for applying the coating from the doctor or rod metering devices.
Ein weiteres brauchbares Hydrophobierungsmittel sind Abmischungen aus glanzgebenden Esterwachsen und niedrig-molekularen, oxidierten Polyäthylene. Derartige Abmischungen sind z. B. als wäßrige Dispersionen mit einem Feststoffgehalt von 30 Gew.%, einer durchschnittlichen Teilchengröße von 0,2 µm und einem pH-Wert von 8,5 bis 9,0 im Handel und werden unter dem Warennamen "Wükonil PW" vertrieben.A further useful hydrophobizing agent is a mixture of glossy ester waxes and low-molecular, oxidized polyethylene. Such blends are e.g. B. as aqueous dispersions with a solids content of 30 wt.%, An average particle size of 0.2 microns and a pH of 8.5 to 9.0 in the trade and are sold under the trade name "Wükonil PW".
Ein ebenfalls brauchbares, nichtreaktives Hydrophobierungsmittel stellt der aus Montanwachs hergestellte sogenannte Montanwachsleim, insbesondere in seiner gebleichten Form, dar. Weitere Auskünfte über Montanwachsleime gibt die Literaturstelle "Wochenblatt für Papierfabrikation 82 (1954), Seite 623.Another useful, non-reactive hydrophobizing agent is the so-called montan wax glue made from montan wax, especially in its bleached form. Further information on montan wax glue is given in the reference "Wochenblatt für Papierfabrikation 82 (1954), page 623.
Ein weiteres nichtreaktives Hydrophobierungsmittel steht in Form einer wäßrigen Dispersion eines organischen Prepolymeren zur Verfügung, wie es im technischen Merkblatt der Firma Schill & Seilacher unter dem Produktnamen "UKASOL NL" beschrieben wird. Diese Hydrophobierungsmittel können erfindungsgemäß einzeln oder in Abmischung miteinander eingesetzt werden.Another non-reactive hydrophobizing agent is available in the form of an aqueous dispersion of an organic prepolymer, as described in the technical data sheet from Schill & Seilacher under the product name "UKASOL NL". According to the invention, these water repellents can be used individually or in a mixture with one another.
Als natürliche Pigmente für die Oberseitenbeschichtung können alle in der Papierstreichtechnik bekannten Pigmente, wie Kaolin, calciniertes Kaolin, gemahlenes oder gefälltes Calciumcarbonat, Talkum einzeln oder in Abmischung zusammen mit einem üblichen Bindemittel, wie z. B. Styrolbutadienlatex, eingesetzt werden. Dem Fachmann sind hier keine Grenzen gesetzt, er wird die Pigmente aufgrund der Anforderungen an Weiße, Glanz und notwendige Glätte der Oberseitenbeschichtung des Erstblattes auswählen.As natural pigments for the top coating, all pigments known in paper coating technology, such as kaolin, calcined kaolin, ground or precipitated calcium carbonate, talcum individually or in a mixture together with a conventional binder, such as, for. B. styrene butadiene latex can be used. The person skilled in the art has no limits here; he will select the pigments based on the requirements for whiteness, gloss and the required smoothness of the top coating of the first sheet.
Der Anteil dieser natürlichen Pigmente am Gesamtanteil der Pigmentmischung ist an sich beliebig wählbar, wird aber bevorzugt zu 70 bis 90 Gew.-Teile, bezogen auf 100 Gew.-Teile atro Pigmentmischung, ausgewählt.The proportion of these natural pigments in the total proportion of the pigment mixture can itself be chosen as desired, but is preferably selected to be 70 to 90 parts by weight, based on 100 parts by weight of dry pigment mixture.
Die Oberseitenbeschichtung enthält auch synthetische Pigmente, wie gefällte Kieselsäure, Titandioxid oder feinteiliges Aluminium-Hydroxid zusätzlich zu den natürlichen Pigmenten einzeln oder in Abmischungen. Die Auswahl richtet sich nach den Anforderungen der Be- und Verdruckbarkeit sowie nach der gewünschten Endweiße der Beschichtung. Soll eine hohe Opazität erzielt werden, ist als Pigment Titandioxid angezeigt. Werden besondere Anforderungen an die Öladsorption der Druckfarbe gestellt, empfiehlt sich der Zusatz von gefällter Kieselsäure.The top coating also contains synthetic pigments such as precipitated silica, titanium dioxide or finely divided aluminum hydroxide in addition to the natural pigments individually or in mixtures. The selection is based on the requirements of printability and printability as well as the desired final whiteness of the coating. If high opacity is to be achieved, titanium dioxide is indicated as pigment. If special requirements are placed on the oil adsorption of the printing ink, the addition of precipitated silica is recommended.
Der Anteil der synthetischen Pigmente beträgt bevorzugt 10 bis 30 Gew.-Teile, bezogen auf 100 Gew.-Teile Gesamtpigmentmischung trocken.The proportion of synthetic pigments is preferably 10 to 30 parts by weight, based on 100 parts by weight of the total pigment mixture dry.
Die Wahl des Auftragsgewichtes der Oberseitenbeschichtung bleibt dem Fachmann freigstellt. Es hat sich gezeigt, daß bei derartigen Erstblättern ein Auftragsgewicht unter 4 g/m² trocken gedachter Streichfarbe nicht zu dem gewünschten Erfolg bezüglich Opazität, Weiße und Bedruckbarkeitsverbesserung führt. Wird dagegen das Auftragsgewicht zu hoch gewählt (über 12 g/m²), werden die Durchschreibeeigenschaften des Erstblattes verschlechtert. Es hat sich daher als vorteilhaft erwiesen, das Auftragsgewicht zwischen 4 und 10 g/m² auszuwählen. Besonders bevorzugt ist ein Auftragsgewicht von 5 bis 7 g/m².The expert is free to choose the application weight of the top coating. It has been shown that in the case of such first sheets, an application weight of less than 4 g / m 2 of a dry coating color does not lead to the desired success in terms of opacity, whiteness and improvement in printability. If, on the other hand, the application weight is chosen too high (over 12 g / m²), the carbonless properties of the first sheet deteriorate. It has therefore proven to be advantageous to select the application weight between 4 and 10 g / m². An application weight of 5 to 7 g / m² is particularly preferred.
In den folgenden Beispielen I bis IV werden Rezepturen für die Oberseitenbeschichtung von erfindungsgemäßen Erstblättern beschrieben, die unterschiedliche Hydrophobierungsmittel enthalten.
Die Rezepturen nach den Beispielen I bis IV wurden auf ein für die Herstellung von druckempfindlichen Durchschreibepapieren übliches holzfreies, in der Masse geleimtes und in der Leimpresse mit einer Präparation aus Stärke versehenes Rohpapier von 48 g/m² Flächengewicht in einer Menge von 6 g/m² - gerechnet als Trockensubstanz - aufgetragen. Nach Auftragen des Oberseitenstriches, Trocknung und Satinage wurde anschließend auf der Rückseite der eigentliche Kapselstrich aufgetragen und ebenfalls getrocknet.The formulations according to Examples I to IV were based on a wood-free base paper of 48 g / m² basis weight in a quantity of 6 g / m², which was glued in the mass and provided with a preparation of starch in the size press and was customary for the production of pressure-sensitive carbonless papers. calculated as dry matter - applied. After applying the top coat, drying and Satinage was then applied to the back of the actual capsule line and also dried.
Mit den Versuchspapieren I bis IV und handelsüblichen CFB- und CF-Papieren wurden sogenannte 4-fach-Sätze in der Reihenfolge CB-CFB-CFB-CF zusammengestellt, diese zu Blöcken zusammengetragen und an einer Schmalseite mit handelsüblichem Selbsttrennleim verleimt. Nach einer Trocknungszeit von 24 Stunden wurde die Selbsttrennverleimung durch Ablösen einzelner Blätter bzw. ganzer Sätze bestimmt und nach dem folgenden Maßstab beurteilt.
- 1 = sehr gute Funktion
- 2 = gute Funktion
- 3 = mäßige Fuktion
- 4 = schlechte Funktion
- 5 = unbrauchbar
- 1 = very good function
- 2 = good function
- 3 = moderate function
- 4 = bad function
- 5 = unusable
Die an den Erstblättern nach DIN gemessene Weiße und Opazität ist in der Tabelle II aufgeführt, wobei zusätzlich zu den Weißemessungen noch eine subjektive, optische Bewertung mit dem Maßstab 1 = gut bis 10 = schlecht durchgeführt wurde.
Claims (7)
- An upper sheet for self-copying form sets made of pressure-sensitive self-copying papers with a capsule coating on the reverse side and on the upper surface a layer, which can be printed on, which comprises non-reactive, natural and/or synthetic pigments, a binder, viscosity regulators, water-repelling agents and further additives, characterised in that the layer on the upper surface contains non-reactive water-repelling agents in a proportion of from 5 to 15% by weight, based on the dry content of the layer.
- An upper sheet according to Claim 1, characterised in that the non-reactive water-repelling agent comprises a salt of a fatty acid, or a wax, a wax ester in admixture with an oxidised polyethylene, a montan wax or an organic pre-polymer or admixtures thereof.
- An upper sheet according to Claim 2, characterised in that the salt of a fatty acid is a calcium, sodium, zinc or ammonium salt.
- An upper sheet according to Claim 1 to 3, characterised in that the fatty acid is stearic acid.
- An upper sheet according to Claim 1 to 4, characterised in that the layer on the upper surface contains, as natural pigment, ground and/or precipitated calcium carbonate, kaolin, calcined kaolin, talc or an admixture of these substances.
- An upper sheet according to Claim 5, characterised in that the proportion of the natural pigment consists of from 70 to 90 parts by weight, based on 100 parts by weight of dry pigment.
- An upper sheet according to Claim 1 to 6, characterised in that the layer on the upper surface contains precipitated silicic acid as synthetic pigment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3919736A DE3919736C1 (en) | 1989-06-16 | 1989-06-16 | |
| DE3919736 | 1989-06-16 | ||
| PCT/EP1990/000928 WO1990015719A1 (en) | 1989-06-16 | 1990-06-13 | Upper sheet for carbon-copy system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0477258A1 EP0477258A1 (en) | 1992-04-01 |
| EP0477258B1 true EP0477258B1 (en) | 1994-05-25 |
Family
ID=6382899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90909687A Expired - Lifetime EP0477258B1 (en) | 1989-06-16 | 1990-06-13 | Upper sheet for carbon-copy system |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5284813A (en) |
| EP (1) | EP0477258B1 (en) |
| JP (1) | JPH04506194A (en) |
| AT (1) | ATE106042T1 (en) |
| CA (1) | CA2060892A1 (en) |
| DE (2) | DE3919736C1 (en) |
| ES (1) | ES2054360T3 (en) |
| FI (1) | FI915896A0 (en) |
| WO (1) | WO1990015719A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2648395B1 (en) * | 1989-06-19 | 1992-02-21 | Arjomari Prioux | PRESSURE SENSITIVE RECORDING MATERIAL HAVING GOOD PRINTABILITY AND CAPABLE OF SELF-SEPARATING BUNDLES, AS WELL AS A PRESSURE SENSITIVE SELF-COPYING SHEET AND SELF-COPING SHEET SHEET |
| DE4112916A1 (en) * | 1991-04-19 | 1992-10-22 | Sued Chemie Ag | COATING MEASUREMENT FOR PRESSURE-SENSITIVE RECORDING MATERIALS AND RECORDING MATERIALS THEREFORE |
| DE4224718C2 (en) * | 1992-07-27 | 1994-12-22 | Feldmuehle Ag Stora | Process for the production of a paper layer with a CB layer for pressure-sensitive recording papers |
| DE4243518C2 (en) * | 1992-12-22 | 1996-03-28 | Feldmuehle Ag Stora | Devices for applying liquid to both sides of a material web and method for applying a liquid to a material web with these devices |
| GB0324755D0 (en) * | 2003-10-23 | 2003-11-26 | Arjo Wiggins Ltd | Pressure sensitive record material |
| US8142887B2 (en) | 2008-03-21 | 2012-03-27 | Meadwestvaco Corporation | Basecoat and associated paperboard structure |
| US8658272B2 (en) * | 2009-04-21 | 2014-02-25 | Meadwestvaco Corporation | Basecoat and associated paperboard structure including a pigment blend of hyper-platy clay and calcined clay |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL268635A (en) * | 1960-08-26 | 1900-01-01 | ||
| FR1322794A (en) * | 1962-05-28 | 1963-03-29 | Transferable multiple-sheet set | |
| US4397483A (en) * | 1980-10-17 | 1983-08-09 | Mitsubishi Paper Mills, Ltd. | Pressure sensitive recording paper |
| US4448445A (en) * | 1982-02-10 | 1984-05-15 | Wallace Computer Services, Inc. | Pressure-sensitive record system |
| CA1316957C (en) * | 1986-12-18 | 1993-04-27 | John Brian Cooper | Pressure sensitive record material |
-
1989
- 1989-06-16 DE DE3919736A patent/DE3919736C1/de not_active Expired - Fee Related
-
1990
- 1990-06-13 EP EP90909687A patent/EP0477258B1/en not_active Expired - Lifetime
- 1990-06-13 DE DE59005834T patent/DE59005834D1/en not_active Expired - Fee Related
- 1990-06-13 JP JP2509715A patent/JPH04506194A/en active Pending
- 1990-06-13 CA CA002060892A patent/CA2060892A1/en not_active Abandoned
- 1990-06-13 WO PCT/EP1990/000928 patent/WO1990015719A1/en active IP Right Grant
- 1990-06-13 US US07/777,358 patent/US5284813A/en not_active Expired - Fee Related
- 1990-06-13 AT AT90909687T patent/ATE106042T1/en not_active IP Right Cessation
- 1990-06-13 ES ES90909687T patent/ES2054360T3/en not_active Expired - Lifetime
-
1991
- 1991-12-13 FI FI915896A patent/FI915896A0/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE106042T1 (en) | 1994-06-15 |
| US5284813A (en) | 1994-02-08 |
| ES2054360T3 (en) | 1994-08-01 |
| DE59005834D1 (en) | 1994-06-30 |
| JPH04506194A (en) | 1992-10-29 |
| CA2060892A1 (en) | 1990-12-17 |
| WO1990015719A1 (en) | 1990-12-27 |
| FI915896A0 (en) | 1991-12-13 |
| DE3919736C1 (en) | 1991-01-17 |
| EP0477258A1 (en) | 1992-04-01 |
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