US2558048A - Transfer sheet - Google Patents

Transfer sheet Download PDF

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Publication number
US2558048A
US2558048A US702361A US70236146A US2558048A US 2558048 A US2558048 A US 2558048A US 702361 A US702361 A US 702361A US 70236146 A US70236146 A US 70236146A US 2558048 A US2558048 A US 2558048A
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US
United States
Prior art keywords
layer
pressure
sensitive
printing
parts
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
US702361A
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English (en)
Inventor
Groak Vilemina
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.)
LAMSON PARAGON SUPPLY Co Ltd
Original Assignee
LAMSON PARAGON SUPPLY 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 LAMSON PARAGON SUPPLY CO Ltd filed Critical LAMSON PARAGON SUPPLY CO Ltd
Application granted granted Critical
Publication of US2558048A publication Critical patent/US2558048A/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
    • B41M5/10—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.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • Y10T428/24901—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material including coloring matter

Definitions

  • It i's'amongsttheiobjects of the present invention to provide a method for the easy preparationofpaper-or like sheets crstrips coated with transfer copying materials, which exhibit .little orno colour-penetration to the front-of even thin paper, e..g. a sulphite cellulosepaper having a weight of 30--.3V5 .grams per square meter, the transfer composition having a hard and nonsmudgy surface, andre'tainingits transfer copying properties'for a long period of time.
  • Fig. '2 is an enlargedtransverse sectional View of the-"stationeryshown-in- Figure 1,- and 2
  • Fig. 3 is a further enlarged transverse sectional view vof the stationery shown in Fig. v1,
  • the presentinvention comprises transfer copying stationery, e. g. in
  • the transfer copyin stationery also includesxa second layer 4 formed by applying a printing ink comprising either a'pigmented ink, a dye-solution ink or aimixture thereof to'the whole or a part of the surfaceTS of thefirst layer I and per.-
  • non-drying is to be understood compositions .or components which after setting do not oxidise or polymerise or change their nature by anysubstantial evaporation or absorption.
  • a setting but non-drying composition is a composition iwhich,'th0ugh readily softened or melted at temperatures above about'50 C. will set at room temperature to'form a more or less solid film havin pressure-sensitive properties.
  • the word non-drying is used to distinguish from compositions which dry by evaporation, or oxidise, polymerise or otherwise change their nature chemically, to form dry and coherent films whichare not'to any useful extent pressure-sensitive.
  • the second applied ink'layer adheresfirmly to the surface of the carrier without impregnation 'thereofand is capable of being transferred when the-pressure is applied.
  • the finished material may be inthe form'of reeled or folded strip or cut sheets.
  • the use of the opaque carrier layer impermeable to the applied coloured layer ensures that little or no colour effect from the coloured layer can be observed from the front of even very thin paper so treated, so that legibility of the writing, drawing, typing, printing or other form of inscription both in the original and the copies is ensured.
  • the second layer which is allowed to dry in any suitable manner depending upon the particular kind of printing ink used, forms a thin dry, coherent film on the surface of the first and pressure-sensitive layer. Parts of this dry and coherent film are capable of being transferred to a copy sheet, by pressure applied to the back (i. e. the uncoated surface) of the stationery, together with corresponding thin films or small portions of the pressure-sensitive carrier layer. Thus, transfer of the dry second layer is dependent upon the pressure-sensitive properties of the first (i. e. carrier) layer.
  • composition for the carrier layer is rendered opaque by the inclusion of a filler or pigment or other suitable compounds, the filler being white or lightly coloured, or the composition may be otherwise lightly tinted to match the colour of the stationery, and compositions are contemplated in accordance with the invention some of which are suitable for hotand others for cold application.
  • the carrier layer composition may be applied over the whole or selected parts only of the paper or other web e. g. it may be in patches or conform to desired configurations according to specific requirements and the sheets may be provided in known manner with out out portions, apertures for sheet or web feed and like purposes.
  • Application of the carrier layer to the paper or other web may be effected with the aid of a coating machine such as is used for the production of ordinary carbon paper or by means of printing machines provided if necessary with a heated inking unit or a heated printing unit or both, or by spraying or brushing.
  • a coating machine such as is used for the production of ordinary carbon paper
  • printing machines provided if necessary with a heated inking unit or a heated printing unit or both, or by spraying or brushing.
  • the followin is a specific example of a compo: sition suitable for hot application in the production of the opaque pressure-sensitive carrier layer.
  • Any transferable composition may however be used for the pressure-sensitive opaque carrier layer, applied in hot or cold state including those which consist of two phases, e. g. a spongy nontransferable continuous phase and a non-continuous pressure-sensitive phase which when applied fills out the pores of the spon y phase.
  • a normal] coating with this composition will involve an application of from 10 to 15 grams per square metre of carrier layer to be formed.
  • composition suitable'for cold application in the production of the opaquepressure-sensitive layer using coating machines or an ordinary letter-press method is as follows:
  • varnish composition itself consisting of eighty parts. of a long offset varnish, six parts of zinc stearate. and fourteen parts: of antimony oxide, are ground in a coldv grinding. millto form the composition for the pressure-sensitive layer.
  • Small additions of xylol may be made if necessary, to soften the composition during the printin or other process of application.
  • the sub-- stance wax, Mycropar A, stearin and Russian tallow are setting but non-drying substances, and petroleum jelly, which isa non-drying substance, also tends to set under cool conditions to form a more or less, solid film.
  • Liquid paraffin and. zinc stearate are likewise non-drying but taken individually they are respectively a. liquid and a solid, usually powder; at.” room temperature and would not normally be termed setting. In combination they can form gels, as is well. known in the art, which can be said to set, and all the substances mentioned above can be combined in suitable proportions to yield setting but non-drying compositions suitable for applying; to material such as paper sheet or stripto forma first and pressure-sensitive layer thereon.
  • Mycropar A is a blend, of ethyl cellulose with either a fatty acid, or wax, or both a. fatty acid and wax. It has a melting point of about 108 6. and its. appearance and behaviour are; like those of a hard wax.
  • the application of the. coloured; second layer to the opaque carrier layer may take place immediately following the first stage operation, subject to. the necessity of giving the opaque layer time to set and. become: relatively hard to the touch to avoid penetration or mingling of the two. layers, or such application may be effected subsequently and. even a very long time afterwards, and the coloured layer will usually though not invariably, cover the whole or a part or parts only of the surface of. the stationery according as the opaque carrier layer covers the whole or part only.
  • limited areas of the coloured, layers may be applied to (ielfresins or gums). and more oil or. plasticiser than the: hard-drying inks. Bhotograv-ure inks and; aniline. printing. inks.
  • heat-set inks which also dry by evaporation and these are the. inks which are. preferable. All such printing inks contain film-forming substances such as. e. g. cellulose. ethers and resins, which after evaporation. of: the solvent vehicle will form a. thin coloured film, which isv dry and hard to the touch. Heat-set inks may be used: but. without the assistance of heat to hasten to evaporation. of the; solvent. Should.
  • the coloured layer may be exposed for a short period only, to a moderately raised temperature e. g. by running the web past a source of infra.- red radiation with, the. coloured layer facing the radiation source and taking carev that. the. carrier layer is not softened, thereby ensuring preservation of the two distinct layers.
  • The" finishing step of applying the col-- oured ink coating material may be carried. out with the same machine as that used for application of the carrier layer or in a simple and efiicient manner utilising known printing. methods with known printing, coating or duplicating machines. or by the. use of a spray or brush.
  • paper or like sheet material provided with the firstcoat ing of pressure-sensitive material will be supplied to a printer for the application of the. colo ured' layer: and"v by the fact that for the: said second layer application special carbon inks: need not be used, the difiiculties. which arise: from the peculiar properties of those inks, such: a penetration of thin paper with subsequent discolorar tion at: the. front, excessive smudging, unless special processes. and/or machines are used, and difiicultofeeding of the ink to the rollers; are avoided;
  • a drawback in the production of carbonized stationery as hitherto known is. that the; methods of preparation thereof have been confined to letterpress printing, photogravure, coating and brushing processes and spraying but by the present invention such limitation is avoided and other processes such as lithography, offset, aniline: printing process, silkscreen. and the; wide available variety of duplicating processes may be. employed;
  • The. coloured: second. layer need only be very thin since it is to be completely transferred to the copy sheet by the pressure of writing, typing or printing and even faint colouration will produce. a. satisfactory result. Measured by the depth of a. layer printed in photogravure the medium. dark tone. achieved by this process is a good guidance-..
  • Different colours for the ultimate transfer copying stationery may be easily achieved e. g. by the common practice of splitting the ink duct 'and'runningdifferent colours side by side, 'a factor which will be of advantage where colour distinction is required in various accounting systems.
  • the stencil sheet is appropriately cut out and printing effected using little ink.
  • Apparatus of the spirit type duplicating kind may also be employed, in which case a piece of the hectographic carbon corresponding in size with the area to be printed is cut and stuck to the master sheet.
  • the separately applied colour layer when dry forms a sealing film over the opaque carrier layer affording protection to the latter both against deterioration of its pressure sensitivity due to atmospheric effects over long periods of time, and against smudging or other injury due to handling.
  • chemical substances may be added to the material to be applied and more usually to the composition for the opaque carrier layer and as examples of suitable additions may be mentioned diphenylguanadene, naphthidene, pyrogalloldimethylether and diphenol as being particularly suitable.
  • Transfer copying stationary comprising material having a set and opaque first layer, which is pressure-sensitive and substantially impervious to printing ink, and is formed by applying a setting, but non-drying, composition to at least part of a surface of said material, and a second layer consisting of a printing ink in the form of a dry and coherent film adhering to at least part of the surface of the first and pressure-sensitive layer.
  • Transfer copying stationery comprising material having a set and opaque first layer which is pressure-sensitive and substantially impervi- 8 ous to printing ink and is formed by applying a setting, but non-drying, composition to a surface of said material, and a second layer consisting of a pigmented printing ink in the form of a dry and coherent film adhering to the surface of the first and pressure-sensitive layer.
  • Transfer copying stationary comprising material having a set and opaque first layer which is pressure-sensitive and substantially impervious to printin ink and is formed by applying a setting, but non-drying, composition to a surface of said material, and a second layer consisting of a dye-solution printing ink in the form of a dry and coherent film adhering to the surface of the first and pressure-sensitive layer.
  • Transfer copying stationery comprising material having a set and opaque first layer which is pressure-sensitive and substantially impervious to printing ink and is formed by applying a setting, but non-drying, composition to a surface of said material, and a second layer consisting of a printing ink constituted by a mixture of a pigmented ink and dye-solution ink, said layer of printing ink being in the form of a dry and coherent film adhering to the surface of the first and pressure-sensitive layer.
  • Transfer copying stationery comprising material having a set and opaque first layer which is pressure-sensitive and substantially impervious to printing ink and is formed by applying a setting but non-drying composition to a surface of said material, said non-drying composition including an opaque filler material of a color to match the color of the composition to that of the material to which it is applied, and a second layer consisting of a printing ink in the form of a dry and coherent film adhering to the surface of the first and pressure-sensitive layer.
  • Transfer copying stationery comprising material having a set and opaque first layer which is pressure-sensitive and substantially imperviious to printing ink and is formed by applying to a surface of said material a setting but nondrying composition which includes an opaque filler material and a separate tinting medium to match the color of the composition to that of the surface of the material to which it is applied, and. a second layer consisting of a printing ink in the form of a dry and coherent film adhering to the surface of the first and pressuresensitive layer.
  • Transfer copying stationery comprising material having a set and opaque first layer which is pressure-sensitive and substantially impervious to printing ink applied to a surface of said material, and a second layer consisting of a soft-drying printing ink in the form of a dry and coherent film adhering to the surface of the first and pressure-sensitive layer.

Landscapes

  • Color Printing (AREA)
  • Printing Methods (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Paints Or Removers (AREA)
US702361A 1945-10-29 1946-10-10 Transfer sheet Expired - Lifetime US2558048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28634/45A GB607887A (en) 1945-10-29 1945-10-29 Improvements relating to transfer copying

Publications (1)

Publication Number Publication Date
US2558048A true US2558048A (en) 1951-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
US702361A Expired - Lifetime US2558048A (en) 1945-10-29 1946-10-10 Transfer sheet

Country Status (6)

Country Link
US (1) US2558048A (en))
CH (1) CH270267A (en))
DE (1) DE855410C (en))
FR (1) FR933741A (en))
GB (1) GB607887A (en))
NL (1) NL67666C (en))

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL127004C (en)) * 1959-08-17
DE1212119B (de) * 1961-08-01 1966-03-10 Walter Reuter Farbmischung fuer ein Kohle-, Durchschreibe- oder Umdruckpapier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1845568A (en) * 1928-04-27 1932-02-16 Ervin E Strawn Copying agency
US1864097A (en) * 1927-10-06 1932-06-21 John Q Sherman Manifolding material
US2372209A (en) * 1940-08-31 1945-03-27 Swift & Sons Inc M Printing medium
US2408147A (en) * 1944-06-24 1946-09-24 Ralph M Kneale Transfer sheet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1864097A (en) * 1927-10-06 1932-06-21 John Q Sherman Manifolding material
US1845568A (en) * 1928-04-27 1932-02-16 Ervin E Strawn Copying agency
US2372209A (en) * 1940-08-31 1945-03-27 Swift & Sons Inc M Printing medium
US2408147A (en) * 1944-06-24 1946-09-24 Ralph M Kneale Transfer sheet

Also Published As

Publication number Publication date
GB607887A (en) 1948-09-07
DE855410C (de) 1952-11-13
FR933741A (fr) 1948-04-29
NL67666C (en))
CH270267A (fr) 1950-08-31

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