EP0016730B1 - Composition de developpement pour la fabrication d'un matériau sensible à la pression pour inscription; feuille couverte de ce matériau; matériau sensible à la pression pour inscription et procédé pour sa fabrication - Google Patents

Composition de developpement pour la fabrication d'un matériau sensible à la pression pour inscription; feuille couverte de ce matériau; matériau sensible à la pression pour inscription et procédé pour sa fabrication Download PDF

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Publication number
EP0016730B1
EP0016730B1 EP80810088A EP80810088A EP0016730B1 EP 0016730 B1 EP0016730 B1 EP 0016730B1 EP 80810088 A EP80810088 A EP 80810088A EP 80810088 A EP80810088 A EP 80810088A EP 0016730 B1 EP0016730 B1 EP 0016730B1
Authority
EP
European Patent Office
Prior art keywords
colour developer
colour
recording material
sensitive recording
developer composition
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
Application number
EP80810088A
Other languages
German (de)
English (en)
Other versions
EP0016730A2 (fr
EP0016730A3 (en
Inventor
Manuel Cespon
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.)
Novartis AG
Original Assignee
Ciba Geigy 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
Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of EP0016730A2 publication Critical patent/EP0016730A2/fr
Publication of EP0016730A3 publication Critical patent/EP0016730A3/de
Application granted granted Critical
Publication of EP0016730B1 publication Critical patent/EP0016730B1/fr
Expired legal-status Critical Current

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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
    • B41M5/132—Chemical colour-forming components; Additives or binders therefor
    • B41M5/155—Colour-developing components, e.g. acidic compounds; Additives or binders therefor; Layers containing such colour-developing components, additives or binders
    • B41M5/1555—Inorganic mineral developers, e.g. clays

Definitions

  • the present invention relates to a color developer composition for the production of a pressure-sensitive recording material and to the pressure-sensitive recording material produced therewith which contains all the constituents necessary to produce a colored marking when exposed to pressure. Furthermore, the present invention relates to a color developing sheet for this pressure-sensitive recording material and a method for producing the pressure-sensitive recording material.
  • Known coating compositions for pressure-sensitive copying systems generally contain a solution of color formers encapsulated in microcapsules and an acidic component which reacts with the color formers under pressure, such as active clay substances, for. B. attapulgite, bentonite, halloysite, zeolite, montmorillonite, kaolin, zinc oxide and phenolic compounds, phenolic resins or solid organic acids.
  • This color developing or electron acceptor component can also be used in combination with an inorganic or organic metal salt.
  • AT-A-268 331 or GB-A-1 071 724 proposes the addition of an inorganic metal salt to an attapulgite-containing coating composition in order to increase the reactivity, thereby protecting the active surface of the attapulgite from contamination and thus in contact with the color former a significant improvement in the resulting coloring is achieved.
  • an inorganic metal salt in particular zinc chloride
  • a reaction accelerator which is used in combination with an acidic clay, an organic acid or a phenolic compound.
  • an inorganic metal salt in particular zinc chloride
  • a reaction accelerator is known, which is used in combination with an acidic clay, an organic acid or a phenolic compound.
  • the metal salt is described for example in DE-A-1 807 894, DE-A-2 303 405 and DE-A-2 163 905.
  • a carbonless material has been developed, the acidic color-developing component of which consists of a chloride of a metal with an atomic mass of 50 to 66, preferably zinc chloride, consists.
  • the metal chloride can also be used in combination with urea, thiourea or diphenylthiourea. The use of a solvent is dispensed with in such copying materials.
  • the object of the invention is to provide a color developer composition for pressure-sensitive recording materials which, without the participation of microcapsules, produce strong and light-resistant color markings.
  • This object is achieved according to the invention by incorporating a mixture of water-soluble inorganic metal salts into the color-developing acceptor mass, at least one metal salt being said to be a nitrate. Through a slow reaction, the nitrate strengthens and stabilizes the color formation of the faster reactant and thus improves the intensification and lightfastness of the dyeings obtained.
  • the present invention accordingly relates to a color developer composition for producing a pressure-sensitive recording material which, as a color developer, contains at least two water-soluble metal salts, at least one of which is an inorganic nitrate.
  • the color developer composition is characterized in that the color developer consists of the nitrate and at least one other inorganic water-soluble metal salt. If desired, the color developer can additionally contain maleic acid or its derivatives, which serve to improve the water resistance of the copies.
  • the metal salt mixtures used according to the invention are advantageously derived from polyvalent metals with an atomic weight of 24 to 210, preferably 40 to 120 and in particular 50 to 120.
  • metals are aluminum, barium, lead, cadmium, calcium, chromium, iron, gallium, cobalt, copper, magnesium, manganese, molybdenum, nickel, mercury, silver, strontium, tantalum, titanium, vanadium, tungsten, zinc, tin and Zirconium. Tin, zinc, manganese, iron, nickel and cobalt are preferred.
  • Particularly preferred metal salt mixtures contain at least one halide and at least one a nitrate.
  • the mixing ratio of metal halide and nitrate is preferably 1: 9 to 9: 1. Both the halide and the nitrate can be used individually or as mixtures.
  • a fluoride, iodide, bromide or preferably a chloride can be considered as the halide.
  • the metal halides advantageously have a molecular weight of 120 to 280, while the nitrates (in their anhydride form) preferably have molecular weights of 150 to 350.
  • metal halides are nickel (II) chloride, cobalt (II) chloride, iron (II) chloride, copper chloride, zinc chloride, tin bromide, tin chloride, manganese (11) chloride, nickel (II) bromide, calcium fluoride, cadmium iodide or mixtures thereof.
  • Zinc chloride and tin chloride are of particular interest.
  • nitrates are iron nitrate, nickel nitrate, manganese nitrate and zinc nitrate or mixtures thereof.
  • the color developer composition is expediently applied to the support in an amount of 1 to 6 g / m 2 .
  • the proportion of inorganic metal salt mixture in this mass is advantageously 5 to 80% by weight, preferably 10 to 80% by weight.
  • the proportion of the color former in the solids content of the coating compositions is 1 to 20, preferably 2 to 15 percent by weight.
  • Both the color former and the color developer are preferably attached to the corresponding layer support by means of a suitable binder.
  • this binder is mainly paper coating agents, such as gum arabic, polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl acetate, vinyl acetate copolymer, hydroxyethyl cellulose, casein, proteins, sodium alginates, methyl cellulose, carboxymethyl cellulose, dextrin, starch or modified starch types such as B. oxidized, hydrolyzed or hydroxyethylated starch or polymer latices.
  • the latter are, for example, polystyrene, butadiene-styrene copolymers or acrylic homo- or copolymers, for. B.
  • the proportion of the binder in the coating composition is generally 5 to 45, preferably 6 to 25 percent by weight, based on the dry content.
  • the paper used is not only normal paper made from cellulose fibers, but also papers in which the cellulose fibers are (partially or completely) replaced by fibers made from synthetic polymers.
  • the coating compositions containing color developers and color formers may also contain pigment solids or fillers.
  • pigment solids or fillers include inorganic pigments such. B. talc, total dioxide, aluminum oxide, barium sulfate, calcium sulfate, satin white (calcium sulfoaluminate), zinc oxide, silicon dioxide, calcium carbonate, unreactive clays and / or kaolins, especially coating kaolin and organic pigments, for.
  • B. urea-formaldehyde or melamine-formaldehyde condensation products can be used.
  • the coating compositions may contain further auxiliaries, for example emulsifiers of the anionic, cationic or nonionic type, dispersants, plasticizers, UV protection agents, antifoams and fungicides.
  • auxiliaries for example emulsifiers of the anionic, cationic or nonionic type, dispersants, plasticizers, UV protection agents, antifoams and fungicides.
  • metal stearates which preferably have a melting point of 90 to 150 ° C., as well as nonylphenols, derivatives of triethanolamine or propionic acid and / or rosins improved particularly stable coating compositions with Properties.
  • lead, calcium, cadmium, aluminum, barium, iron, magnesium, cobalt, tin and zinc stearate may be mentioned as metal stearates.
  • Suitable derivatives of propionic acid and of triethanolamine are, in particular, octadecyl 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate and thearipropionic acid distearyl ester or triethanolamine oleate.
  • Both the color former and the color developer can be applied to the carrier material using solvents or, preferably, in the form of a wax emulsion and / or melt.
  • the application is usually carried out at a temperature of 20 to 180 ° C, preferably 60 to 160 ° C.
  • solvents water or organic solvents such as aliphatic or aromatic, optionally chlorinated hydrocarbons, alcohols, esters, ketones or glycol ethers can be used.
  • organic solvents which can be used include, for example, methanol, ethanol, isopropanol, butanol, acetone, ethyl acetate, butyl acetate, benzene, toluene, xylene, methyl chloride or mixtures thereof.
  • the inorganic metal salts or the color formers are dissolved or dispersed in solvents, preferably water, whereupon a wax is emulsified in this solution or dispersion and the wax emulsions formed, advantageously at a temperature of 50 to 180 ° C., preferably 60 to 160 ° C is applied to the corresponding carrier.
  • Both natural waxes e.g. B. vegetable, animal or mineral waxes and synthetic waxes can be used.
  • Preferred waxes are chlorinated waxes, paraffins, oxide waxes and in particular polyethylene or polyethylene oxide waxes with a molecular weight of 400 to 12,000. Examples of waxes in question are carnauba wax, amide wax, hard wax, micro wax, polyethylene wax or ozokerite. These waxes can also be used as mixtures.
  • the proportion of wax in the coating compositions, in particular in the color developer composition is generally 5 to 85% by weight, preferably 15 to 75% by weight, based on the dry content.
  • the pressure-sensitive recording material according to the invention preferably consists of a carrier sheet with a layer containing a color former and a layer containing the color developer.
  • the color former and the color developer can each be embedded together on a carrier.
  • the recording material mainly contains solvents and can still contain up to 90% by weight of the solvent used for the application.
  • a color image mass is produced as a test material consists. This coating slip is applied to a paper support (40 g / m 2 basis weight). The application density is 1 g / m 2.
  • the color developer compositions contain, as color developers, the reagents specified in the second column of the table, acetone being used as the solvent for application.
  • the color developer composition is brought into contact with the color image composition applied to the paper by means of a glass rod.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Claims (11)

1. Composition de révélateur chromogène pour la fabrication d'un matériau d'enregistrement sensible à la pression, qui contient comme révélateur chromogène au moins deux sels métalliques solubles dans l'eau, parmi lesquels l'un est un nitrate minéral, caractérisée par le fait que le révélateur chromogène est constitué, en plus du nitrate, par au moins un autre sel métallique minéral soluble dans l'eau.
2. Composition de révélateur chromogène selon la revendication 1, caractérisée par le fait que les sels métalliques sont un mélange constitué par au moins un halogénure et au moins un nitrate.
3. Composition de révélateur chromogène selon l'une des revendications 1 et 2, caractérisée par le fait que la composition de révélateur chromogène contient une combinaison double ou une combinaison triple d'halogénures et de nitrates des métaux : étain, zinc, manganèse, fer, cobalt et nickel.
4. Composition de révélateur chromogène selon l'une des revendications 1 à 3, caractérisée par le fait que en tant que nitrate, on peut utiliser le nitrate d'un des métaux : zinc, nickel, manganèse et fer ou un mélange de ces nitrates.
5. Composition de révélateur chromogène selon l'une des revendications 1 à 4, caractérisée par le fait que la composition de révélateur chromogène contient en plus de l'acide maléique.
6. Composition de révélateur chromogène selon l'une des revendications 1 à 5, caractérisée par le fait que le taux de sel métallique est de 10 à 80 % en poids, rapporté à la matière sèche de la composition de révélateur chromogène.
7. Composition de révélateur chromogène selon l'une des revendications 1 à 6, caractérisée par le fait que la composition de révélateur chromogène est constituée par une émulsion de cire.
8. Composition de révélateur chromogène selon l'une des revendications 1 à 7, caractérisée par le fait que la composition de révélateur chromogène contient un solvant dans lequel les réactifs ont une solubilité de 5 à 100 %.
9. Feuille pour le développement de la couleur pour le matériau d'enregistrement sensible à la pression constituée par au moins un support de couche, qui est sensibilisée avec un revêtement, caractérisée par le fait que le révélateur chromogène a été appliqué avec une ccmposition de révélateur chromogène selon l'une des revendications 1 à 8.
10. Matériau d'enregistrement sensible à la pression avec des supports de couche qui sont sensibilisés avec des enductions contenant un chromogène et un révélateur chromogène, caractérisé par le fait que le révélateur chromogène a été appliqué avec une composition de révélateur chromogène selon l'une des revendications 1 à 8.
11. Procédé pour la fabrication d'un matériau d'enregistrement sensible à la pression contenant au moins un support de couche, qui est sensibilisé avec des enductions contenant un chromogène et un révélateur chromogène, caractérisé par le fait que le révélateur chromogène est appliqué avec une composition de révélateur chromogène selon l'une des revendications 1 à 8.
EP80810088A 1979-03-20 1980-03-14 Composition de developpement pour la fabrication d'un matériau sensible à la pression pour inscription; feuille couverte de ce matériau; matériau sensible à la pression pour inscription et procédé pour sa fabrication Expired EP0016730B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0207379A AT372909B (de) 1979-03-20 1979-03-20 Farbentwicklermassen zur herstellung eines druck- empfindlichen aufzeichungsmaterials mit besonders starker farbbildung und lichtbestaendigkeit
AT2073/79 1979-03-20

Publications (3)

Publication Number Publication Date
EP0016730A2 EP0016730A2 (fr) 1980-10-01
EP0016730A3 EP0016730A3 (en) 1980-10-15
EP0016730B1 true EP0016730B1 (fr) 1983-02-16

Family

ID=3527197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80810088A Expired EP0016730B1 (fr) 1979-03-20 1980-03-14 Composition de developpement pour la fabrication d'un matériau sensible à la pression pour inscription; feuille couverte de ce matériau; matériau sensible à la pression pour inscription et procédé pour sa fabrication

Country Status (13)

Country Link
US (2) US4348234A (fr)
EP (1) EP0016730B1 (fr)
JP (1) JPS55124695A (fr)
AT (1) AT372909B (fr)
AU (1) AU536968B2 (fr)
BR (1) BR8001638A (fr)
DE (2) DE3061967D1 (fr)
ES (1) ES490408A0 (fr)
FI (1) FI72079C (fr)
MX (1) MX154220A (fr)
PT (1) PT70971A (fr)
YU (1) YU43466B (fr)
ZA (1) ZA801587B (fr)

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US4859242A (en) * 1987-03-16 1989-08-22 Color Quest Inc. Water soluble coloring compositions containing sparkle components
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US7226719B2 (en) * 2003-09-08 2007-06-05 General Electric Company Limited play data storage media and coating formulations thereon
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US20110046284A1 (en) 2009-08-24 2011-02-24 Basf Corporation Novel Treated Mineral Pigments for Aqueous Based Barrier Coatings
US9803088B2 (en) 2009-08-24 2017-10-31 Basf Corporation Enhanced performance of mineral based aqueous barrier coatings
US10913826B2 (en) 2014-09-26 2021-02-09 Henry Company, Llc Powders from wax-based colloidal dispersions and their process of making
WO2016070012A1 (fr) 2014-10-30 2016-05-06 Henry Company, Llc Matériaux à changement de phase à partir de dispersions colloïdales à base de cire et leur procédé de fabrication
WO2016094719A1 (fr) 2014-12-11 2016-06-16 Henry Company, Llc Matériaux à changement de phase obtenus à partir de dispersions colloïdales à base de cire et leur procédé de fabrication

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Also Published As

Publication number Publication date
ATA207379A (de) 1983-04-15
FI72079B (fi) 1986-12-31
AT372909B (de) 1983-11-25
YU73980A (en) 1983-01-21
DE3010201A1 (de) 1980-10-02
EP0016730A2 (fr) 1980-10-01
FI800820A (fi) 1980-09-21
YU43466B (en) 1989-08-31
ZA801587B (en) 1981-03-25
MX154220A (es) 1987-06-19
BR8001638A (pt) 1980-11-18
ES8107093A1 (es) 1981-10-01
DE3061967D1 (en) 1983-03-24
US4422671A (en) 1983-12-27
AU5658680A (en) 1980-11-27
ES490408A0 (es) 1981-10-01
JPS6259679B2 (fr) 1987-12-11
AU536968B2 (en) 1984-05-31
JPS55124695A (en) 1980-09-25
FI72079C (fi) 1987-04-13
PT70971A (en) 1980-04-01
US4348234A (en) 1982-09-07
EP0016730A3 (en) 1980-10-15

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