US3203832A - Method of manufacturing copying papers and a copying paper - Google Patents

Method of manufacturing copying papers and a copying paper Download PDF

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Publication number
US3203832A
US3203832A US277753A US27775363A US3203832A US 3203832 A US3203832 A US 3203832A US 277753 A US277753 A US 277753A US 27775363 A US27775363 A US 27775363A US 3203832 A US3203832 A US 3203832A
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US
United States
Prior art keywords
layer
paper
copying paper
face
base sheet
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
US277753A
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English (en)
Inventor
Mino Shozo
Otani Sumio
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.)
Carbon Paper Co Ltd
Original Assignee
Carbon Paper Co Ltd
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 Carbon Paper Co Ltd filed Critical Carbon Paper Co Ltd
Application granted granted Critical
Publication of US3203832A publication Critical patent/US3203832A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B41M5/10—Duplicating or marking methods; Sheet materials for use therein by using carbon paper or the like
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/914—Transfer or decalcomania
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree

Definitions

  • This invention relates to a copying paper and a method of making copies using the copying paper.
  • a copying paper consisting of a number of sheets in layers and comprising a covering layer on the surface of a lower sheet of a dilerent color from the face or another layer on the surface of said lower sheet, which first-mentioned layer on said lower sheet is exfoliated and adapted to adhere to an upper sheet when subjected to pen pressure or typewriting pressure, and an adhesive layer on the under surface of the upper sheet adapted to adhere to the parts of said layer which are exfoliated only at the time of said pen pressure or typewriter pressure.
  • the invention also provides a method of making copies which comprises exfoliating a covering layer on the surface of a lower sheet from said surface and adhering the layer to an adhesive layer adjacent the under surface of an upper sheet by pen pressure or typewriting pressure, and exposing la coloured part of a coloured face or layer under said covering layer and consequently providing the desired impressions in said coloured part.
  • the present invention provides copying papers which can be handled without staining the hands and these papers can be preserved for a long time without degeneration, discolouration or disappearance of the impressions copied during handling and preservation and also provides a method for making many copies easily and clearly, and finally the invention provides a method which increases oice eiciency greatly without using normal carbon papers.
  • Copying papers coated with carbon ink that is to say, physical copying papers used in conventional methods, have many faults, e.g. they stain hands and papers which touch the surface coated with carbon ink, in spite of little change in their quality and character, and also copying papers of the type which can be colour-developed by chemical change or oxidation by contacting one face with a dye and the other face coated with an oxidizing agent do not stain hands and papers and provide a good white copy, but they have the fault that they may change their quality, that is to say, they lose their copying ability and may change colour or fade.
  • FIG. l is a perspective view, partly in section, of a sheet of copying paper according to the invention.
  • FIG. 2 is a sectional view of the copying paper of FIG. l;
  • FIG. 3 is an exploded perspective view of several sheets of copying paper arranged in layers
  • FIG. 4 is an exploded sectional view of several sheets of copying paper after pen pressure or typewriting pressure has been exerted on them;
  • FIG.. 5 is a perspective view, partly in section, of a modied form of a sheet of copying paper according to the invention.
  • FIG. 6 is a sectional view of the copying paper of FIG. 5;
  • FIG. 7 is an exploded perspective view of several sheets of copying paper ,arranged in layers.
  • FIG. 8 is an exploded sectional view of several sheets of copying paper after pen pressure or typewriting pressure has been exerted on them.
  • a coloured paper l is provided with a coloured layerZ of a white Vcoloni' or another dilIerent colour from the color of said coloured paper 1 on its surface and an adhesive layer 3 adjacent its under surface.
  • a copying paper 4 consists of said paper 1, coloured layer 2 and adhesive layer 3.
  • one portion 7 of said coloured layer 2 will be separated from the layer to adhere closely to said adhesive layer 3 under the base up of the upper sheet and consequently will be exfoliated from said layer 2 to expose the surface 8 of said paper 1 under the portion of said layer 2 exfoliated at the time the sheets of said set are separated from each other.
  • the coloured paper 1 is completely black or its one face touching coloured layer 2 is black and said layer 2 is white or yellow in colour
  • the surface 8 of said paper 1 with black colour will be exposed only in the area pressed to manifest black characters clearly against the white or yellow background provided by said layer 2.
  • Said coloured paper is usually of a dark colour, such as black, blue, red, green or purple, and this colour should be selected to contrast with the colours of said coloured layer 2, such as white or yellow or light shades of red, blue or green.
  • the coloured paper 1 is dyed with a pigment or dye and an inorganic pigment is preferred, for example, carbon black, which is imrniscible with the flux at the time of coating said coloured layer 2, or paper 1 is coated on one face with said pigment or dye and a suitable binder.
  • an inorganic pigment for example, carbon black, which is imrniscible with the flux at the time of coating said coloured layer 2, or paper 1 is coated on one face with said pigment or dye and a suitable binder.
  • the top sheet 5 should be a white or light-coloured paper which will show characters on its surface from al ball point pen, pencil or typewriter.
  • the coloured layer 2 is a film on the coloured face ⁇ of said paper 1 and said iilm is characterized by the fact that during handling of the paper said lm is not exfoliated from the paper 1 to stain hands or papers and only the parts pressed by pen pressure or typewriting pressure are exfoliated from the coloured layer to adhere to the adhesive layer 3 for several sheets of copying paper 4 arranged in layers.
  • 'Ihe coating iilrn comprises coating lm forming components, pigment, fats and fatty oils containing wax or waxlike compounds, or oily or fatty compounds.
  • Plasticizers which are unnecessary at the time of using pliable coating tilm forming components should be coated on said coloured face as solutions or emulsions
  • the ux or water in the coating ilm is evaporated after completing the coloured layer.
  • the coating film forming components, pigment, oily and fatty compounds, should be immiscible with each other and at least 60% of the gross volume of the -oily and fatty compounds shouldl be xed and non-drying, and should not cause changes in said coating forming components and pigment.
  • Formulation l parts Coating film forming component, nitrocellulose Plasticizer, dioctylphthalate 3 Oily and fatty compound, polyethyleneglycol 12 Pigment, titan White Flux, methanol 80 Formulation 2:
  • Coating film forming component shellac 6 Plasticizer, castor oil 6 Oily and fatty compound, stearic acid 3 Pigment, zinc white Flux, methanol 80 Formulation 3:
  • Coating film forming component gelatin 1.5 Oily and fatty compound, stearic acid 1.4 Dispersant, grained Soap 1 Pigment- Titan white 5 Plaster l2 Flux, water 30
  • film forming components useful in carrying out the present invention are, c g., resins having film forming ability as used in the ink industry and paint industry, among which are cellulose derivatives, synthetic resins, natural resin and its denaturation substances, rubber-like resins and protein-like resins. Pigments and dyes which are miscible in the flux or oily and fatty compounds are not useful in carrying out the present invention, since they infiltrate into the coloured paper and interfere with the clearness of characters at the time of coating the coloured layer.
  • oily and fatty compounds useful in carrying out the present invention are fats and fatty oils, e.g., castoroil, lanoline, hardened oil, and non-drying oils, eg., mineral oil, petrolatum, and Wax or Wax-like compounds miscible in fiux, e.g., carnauba wax, stearon, stearie acid, and metallic soap, e.g., fatty acid, calcium stearate, and polyhydric alcohols, e.g., glycerine, polyethylene glycol, stearyl alcohol, and higher alcohols.
  • the oily and fatty compounds should be fixed and non-drying.
  • the pigment and oily and fatty compounds are dispersed uniformly and fixed to said coloured paper through the coating film forming components, and are immiscible with each other, so that the coating film forming molecules are fixed and do not exfoliate from said coloured paper.
  • the components may be rolled or milled in a colloid mill or ball mill and are dissolved and dispersed uniformly into a flux and coated onto the surface of the coloured paper by roller-coating or spraying, and the flux is coated thinly and uniformly by vaporizing with drying apparatus.
  • the adhesive layer 3 consists of .a coating Ifilm coated on the Whole surface or -on the necessary parts of the opposite face to said coloured layer 2 of said paper 1.
  • Said coating film :of said layer -3 provides the .adhesive action which acts to cause the exfoliated parts pressed from sai-d coloured layer 2 4of the lower coloured paper 1 to ⁇ adhere to the adhesive layer 3 of the upper coloured paper 1 only when pressure is exerted on the paper when several sheets of copying paper 4 4are arranged in layers.
  • Formulation 1 Parts Wax, microwax 10 Pigment, titan White 2 Formulation 2:
  • Wax, paraffin 7 Natural resin, rosin 3 Formulation 5 Wax, paraffin 7 Natural resin, rosin 3 Formulation 5:
  • adhesive layers 3 most effective in carrying out the present invention are, e.g., the combination of wax and high polymer miscible with the wax and the combination of Wax and metallic soap, 'both having a melting point of over 50 C., and also useful in the yadhesive layer .are cellulose derivatives, synthetic resins, rubber derivatives, natural resin yderivatives and plasticizers.
  • the adhesive ⁇ layer is coated thinly and uniformly by means of roller-coating or spraying in the fused state or ⁇ as an emulsion, or solution in flux.
  • the adhesive layer may be coloured the same colour as the coloured layer 'by mixing the required pigment into it.
  • a blank form 9 is provided with an adhesive layer 10 under its base, .a coloured layer 11 on its surface and white-coloured layer 12 to cover said layer 11.
  • the adhesive layer 10 consists of -a coating on the bottom of said form 9 of a solution of one or more fats, fatty oils, waxes, natural resins, synthetic resins, rubber-like resins, or cellulose derivatives and plasticizers with ux, and also sai-d coloured layer 11 consists of a coating or printing of printers ink on the surface of said form 9.
  • the white-coloured layer 12 consists of a coating of resin, fats and fatty oils immiscible with each other and a white pigment on the surface of said coloured layer 11.
  • the copying paper 13 consists of said blank form 9, said layers 10, 11 and said layer 12.
  • the adhesive layer 10 consists of .a combination of fats and fatty oils, -or Wax, or natural resin, synthetic resin, cellulose derivatives, or rubber-like resin and plasticizer.
  • the layer 10 provides the adhesive .action which normally does not cause layer 10 to ladhere to the other sheet, yand acts to cause the parts exfoliated from the White-coloured ink-layer 12 of the lower blank form l9 to Iadhere to the .adhesive layer 10 only at the time pressure is exerted on the several sheets of copying paper ⁇ 13 arranged .as 4a set in layers.
  • the white coloured layer 12 consists of synthetic resin, white coloured pigment, and fats and fatty oils which lare immiscible with synthetic resin
  • the coloured ⁇ layer '1-1 consists of a coating of printers ink.
  • a plurality of sheets of copying paper each consisting of a base sheet member having the face thereof colored with a dark color, a layer over said dark colored face of a different color than the color of the face of said base sheet member, the different color being a light color and said layer being of a material which can be exfoliated from said colored face of said base sheet member and which will readily receive ink from conventional Writing instruments, and a layer of pressure sensitive adhesive on the back of said base sheet member and having a light color substantially the same as said light colored layer on the face of said base sheet member, said sheets of copying paper being stacked with the colored layers on one sheet of copying paper against the adhesive layer on the back of the next adjacent sheet copying paper, whereby when pressure is exerted on the stack of sheets by a pen or typewriter or the like from the direction toward which said light colored layers are facing, the material in the layers of light colored material on the base sheet members is exfoliated and adheres to the layer of adhesive on the next adjacent sheet of copying paper and exposes the darker colored face 0f the base
  • said light colored layer on said base sheet member is a coating film comprising: a lm forming component; a pigment; a member taken from the group consisting of non-volatile fats and fatty oils, oily compounds and fatty compounds; a plasticizer; and a vehicle in which the materials are placed for coatingonto said base sheet member, the coloring material for coloring the face of said base sheet member being substantially immiscible with the vehicle for said coating materials, and said iilm forming component is a resin taken from the group consisting of cellulose derivatives, synthetic resins, natural resins and their denaturation substances, rubber-like resins, and protein-like resins, and at least 60% of the gross volume of said oily and fatty compounds are non-drying, and said adhesive layers on the backs of said sheets each comprise a heat meltable mixture of wax and a member taken from the group consisting of high polymer material miscible with wax and metallic soap.

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  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Color Printing (AREA)
US277753A 1962-02-25 1963-05-03 Method of manufacturing copying papers and a copying paper Expired - Lifetime US3203832A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP275162 1962-02-25
JP2175162 1962-05-25
JP625863 1963-02-05
NL6405442A NL6405442A (enrdf_load_stackoverflow) 1962-02-25 1964-05-15

Publications (1)

Publication Number Publication Date
US3203832A true US3203832A (en) 1965-08-31

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ID=27453705

Family Applications (1)

Application Number Title Priority Date Filing Date
US277753A Expired - Lifetime US3203832A (en) 1962-02-25 1963-05-03 Method of manufacturing copying papers and a copying paper

Country Status (7)

Country Link
US (1) US3203832A (enrdf_load_stackoverflow)
AT (1) AT278866B (enrdf_load_stackoverflow)
BE (1) BE643210A (enrdf_load_stackoverflow)
CH (1) CH432226A (enrdf_load_stackoverflow)
DE (1) DE1239713B (enrdf_load_stackoverflow)
GB (1) GB1052033A (enrdf_load_stackoverflow)
NL (1) NL6405442A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410712A (en) * 1965-10-19 1968-11-12 Renker Belipa Gmbh Pressure responsive transfer system and process of making
US3411935A (en) * 1965-10-22 1968-11-19 Renker Belipa Gmbh Pressure-sensitive transfer elements and method of producing same
US3471311A (en) * 1967-02-15 1969-10-07 Datacopy Ltd Transfer compositions
US3545999A (en) * 1966-12-16 1970-12-08 Datacopy Ltd Transfer sheet system
US4956225A (en) * 1987-04-02 1990-09-11 Xerox Corporation Transparency with a polymeric substrate and toner receptive coating
US4957813A (en) * 1987-09-08 1990-09-18 Canon Kabushiki Kaisha Pressure-sensitive transfer member
US4997697A (en) * 1989-06-29 1991-03-05 Xerox Corporation Transparencies

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US627229A (en) * 1899-06-20 Manifqlding-sheet
US680637A (en) * 1899-05-17 1901-08-13 Horace P Brown Manifolding-sheet.
US886782A (en) * 1907-02-01 1908-05-05 Arnold A Wilkinson Book for manifold writing.
US972742A (en) * 1908-11-16 1910-10-11 William L West Manifold-paper.
US1845568A (en) * 1928-04-27 1932-02-16 Ervin E Strawn Copying agency
US2135538A (en) * 1936-10-17 1938-11-08 Sherman Nontransfer manifolding material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE636332C (de) * 1935-04-24 1936-10-06 Karl Schindler Durchschreibverfahren
DE1041981B (de) * 1954-07-09 1958-10-30 Paul Meyer Verfahren zur Herstellung von Papierblaettern fuer die Anfertigung von Durchschriften ohne Kohlepapier
DE1046635B (de) * 1956-09-20 1958-12-18 Paul Meyer Verfahren zur Herstellung von Papierblaettern fuer die Anfertigung von Durchschriften ohne Kohlepapier

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US627229A (en) * 1899-06-20 Manifqlding-sheet
US680637A (en) * 1899-05-17 1901-08-13 Horace P Brown Manifolding-sheet.
US886782A (en) * 1907-02-01 1908-05-05 Arnold A Wilkinson Book for manifold writing.
US972742A (en) * 1908-11-16 1910-10-11 William L West Manifold-paper.
US1845568A (en) * 1928-04-27 1932-02-16 Ervin E Strawn Copying agency
US2135538A (en) * 1936-10-17 1938-11-08 Sherman Nontransfer manifolding material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410712A (en) * 1965-10-19 1968-11-12 Renker Belipa Gmbh Pressure responsive transfer system and process of making
US3411935A (en) * 1965-10-22 1968-11-19 Renker Belipa Gmbh Pressure-sensitive transfer elements and method of producing same
US3545999A (en) * 1966-12-16 1970-12-08 Datacopy Ltd Transfer sheet system
US3471311A (en) * 1967-02-15 1969-10-07 Datacopy Ltd Transfer compositions
US4956225A (en) * 1987-04-02 1990-09-11 Xerox Corporation Transparency with a polymeric substrate and toner receptive coating
US4957813A (en) * 1987-09-08 1990-09-18 Canon Kabushiki Kaisha Pressure-sensitive transfer member
US4997697A (en) * 1989-06-29 1991-03-05 Xerox Corporation Transparencies

Also Published As

Publication number Publication date
AT278866B (de) 1970-02-10
NL6405442A (enrdf_load_stackoverflow) 1965-11-16
CH432226A (de) 1967-03-15
DE1239713B (de) 1967-05-03
BE643210A (enrdf_load_stackoverflow) 1964-05-15
GB1052033A (enrdf_load_stackoverflow)

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