EP0477258B1 - Erstblatt für durchschreibesätze - Google Patents

Erstblatt für durchschreibesätze Download PDF

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Publication number
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
Authority
EP
European Patent Office
Prior art keywords
upper sheet
sheet according
layer
weight
pigment
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.)
Expired - Lifetime
Application number
EP90909687A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0477258A1 (de
Inventor
Horst Walter Heyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stora Feldmuehle AG
Original Assignee
Stora Feldmuehle AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Stora Feldmuehle AG filed Critical Stora Feldmuehle AG
Publication of EP0477258A1 publication Critical patent/EP0477258A1/de
Application granted granted Critical
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Anticipated expiration legal-status Critical
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Classifications

    • 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.

Landscapes

  • Paper (AREA)
  • Color Printing (AREA)
  • Duplication Or Marking (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP90909687A 1989-06-16 1990-06-13 Erstblatt für durchschreibesätze Expired - Lifetime EP0477258B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3919736 1989-06-16
DE3919736A DE3919736C1 (pt) 1989-06-16 1989-06-16
PCT/EP1990/000928 WO1990015719A1 (de) 1989-06-16 1990-06-13 Erstblatt für durchschreibesätze

Publications (2)

Publication Number Publication Date
EP0477258A1 EP0477258A1 (de) 1992-04-01
EP0477258B1 true EP0477258B1 (de) 1994-05-25

Family

ID=6382899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90909687A Expired - Lifetime EP0477258B1 (de) 1989-06-16 1990-06-13 Erstblatt für durchschreibesätze

Country Status (9)

Country Link
US (1) US5284813A (pt)
EP (1) EP0477258B1 (pt)
JP (1) JPH04506194A (pt)
AT (1) ATE106042T1 (pt)
CA (1) CA2060892A1 (pt)
DE (2) DE3919736C1 (pt)
ES (1) ES2054360T3 (pt)
FI (1) FI915896A0 (pt)
WO (1) WO1990015719A1 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648395B1 (fr) * 1989-06-19 1992-02-21 Arjomari Prioux Materiau d'enregistrement sensible a la pression ayant une bonne imprimabilite et pouvant former des liasses par encollage autoseparant, ainsi qu'une feuille autocopiante sensible a la pression et une liasse de feuillets autocopiants obtenue par encollage autoseparant
DE4112916A1 (de) * 1991-04-19 1992-10-22 Sued Chemie Ag Ueberzugsmasse fuer druckempfindliche aufzeichnungsmaterialien und damit hergestellte aufzeichnungsmaterialien
DE4224718C2 (de) * 1992-07-27 1994-12-22 Feldmuehle Ag Stora Verfahren zur Herstellung einer eine CB-Schicht aufweisenden Papierbahn für druckempfindliche Aufzeichnungspapiere
DE4243518C2 (de) * 1992-12-22 1996-03-28 Feldmuehle Ag Stora Vorrichtungen zum Auftrag von Flüssigkeit auf beide Seiten einer Materialbahn und Verfahren zum Auftrag einer Flüssigkeit auf eine Materialbahn mit diesen Vorrichtungen
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL268635A (pt) * 1960-08-26 1900-01-01
FR1322794A (fr) * 1962-05-28 1963-03-29 Liasse à feuillets multiples à report par décalque
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

Also Published As

Publication number Publication date
ATE106042T1 (de) 1994-06-15
CA2060892A1 (en) 1990-12-17
DE3919736C1 (pt) 1991-01-17
WO1990015719A1 (de) 1990-12-27
US5284813A (en) 1994-02-08
EP0477258A1 (de) 1992-04-01
DE59005834D1 (de) 1994-06-30
JPH04506194A (ja) 1992-10-29
FI915896A0 (fi) 1991-12-13
ES2054360T3 (es) 1994-08-01

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