[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

US2992121A - Thermosensitive colouring materials - Google Patents

Thermosensitive colouring materials Download PDF

Info

Publication number
US2992121A
US2992121A US73346958A US2992121A US 2992121 A US2992121 A US 2992121A US 73346958 A US73346958 A US 73346958A US 2992121 A US2992121 A US 2992121A
Authority
US
United States
Prior art keywords
ink composition
coloured
parts
antimony
lake
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
Inventor
Francis Frederick George
Seaward John Albert
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.)
Caribonum Ltd
Original Assignee
Caribonum 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 Caribonum Ltd filed Critical Caribonum Ltd
Application granted granted Critical
Publication of US2992121A publication Critical patent/US2992121A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer

Definitions

  • thermo-sensitive paper or other sheet material makes use of thermo-sensitive paper or other sheet material.
  • 'a sheet of thermo-sensitive material such as a sheet of paper; coated with one or, more layers of a thermo sensitive composition which produces a distinctive colouration in those areas; subjected to a suitable increase in temperature, is placed in contact with and above the printed, typewritten or other material to be copied and the sheets, are then irradiated with infra-red rays.
  • This generates a heat pattern inv the copy sheet in accordance with the characters or other markings on the material to 2,992,121 2 Patented July 11,1961
  • a chromatic-coloured ink composition is provided,-.which is adapted to produce coloured written copy matter capable of'being copied by a thermosensitive copyingprocess, which ink composition consists essentially .of an oil-containing vehicle, at least one chromatic-coloured colouring material in an amount of from 15% to 30% by weight of the ink composition and finely-divided antimony in an amount sufficient to give "satisfactory thermosensitive copy by imparting infrared absorptive properties to the ink composition without the antimony being'presjent in an -amount sufliciently large to 'obscure the chromatic colour of the] ink composition.
  • the colouring material ink composition of the present invention may be embodiedin'sor used as printing or other'inks, or may be used to impregnate typewriter and other inked ribbons or may be incorporated in a transferable. composition usedinthe manufacture of carbon paper and other. transfer sheet material.
  • the infra-red rays are directed on to the material to be copied'through the copy sheet, which is not itself absorbentof infra-red radiation.
  • thermosensitive copying process'with coloured material This method of copying is therefore not normally feasible with material which is partly in black and partly in a colour, e.g. red.
  • Good copies can be obtained, however, from typed material produced by means of a black typewriter ribbon, which is impregnated with an which contains carbon black.
  • Red typewriter ribbons and other coloured ribbons, such as purple, green and blue, are almost completely unsatisfactory from the'standpoint of obtaining copiesbyfmeans of ther fno-sensitive copying paper from material typed with them.
  • brown ribbons will sometimes produce matter which can be 'copiedin' this way, particularly if the brown colouring material in the typewriter ribbon ink is obtained by the addition 'of carbon black to another colouring matter, such as a red pigment.
  • the expression chro- .It hasbeenfound that fairly large quantities of powdered or otherwise finely-divided antimony are generally required to give satisfactory results, but the colour of the other pigmentary or colouring matter used in the colouring. material. is not adversely affected and very good results can be obtained in producing written matter by printing, writing, typing or by using carbon paper.
  • thermo-sensitive copy paper The actual quantity of antimony required to give the best results, as regards the quality of copies produced from the ,written matter ;by*means of a thermo-sensitive copy paper, depends to some extent upon'the colour and nature of the pigment or pigments, but in general it has been found satisfactory to employ the powdered antimony inan' amount of 15 to 25% by weight of the ink, the latter preferably containing 15 to 30% by weight of lake colour or other pigment or coloured material.
  • antimony can be readily powdered and can be'mixe'dand ground with the other ingredients of theink or other colouring material as if it were a pig- In entself it is carefully ground, such as on a triple roll mill, antimony can be obtained in an extremely finelydivided condition. 'If such an ink is used to impregnate a typewriter ribbon, the material produced by typing with the ribbon is found to be a better and much-brighter colour than that obtained with a graphite-containing ink ribbon. Y.
  • Example 1 Parts by weight Lardoil 29 Light mineral oil 31.5 Triethanolamine oleate i p, b 2.4 Strong Violet Lake 20. Antimony 16.6
  • Example 2 Castor oil 41.7 Lard oil 10.4 Light mineral oil 14.0 Strong Red Lake 13.0 Dark Red Lake 3.5 Anti-oxidant 1 0.8 Antimony 16.6
  • Example 5 sets out a formulation for the transferable coating of a carbon paper.
  • Example 5 Parts by weight The colour of the particular lake is chosen to suit the desired colour of the carbon paper dope, from the Strong Violet Lake, Strong Red Lake, Dark Red Lake, Strong Blue Lalze land Strong Deep Green Lake mentioned in Examples 1 o a ove.
  • a coloured ink composition which is adapted to produce coloured written copy matter capable of being copied by a thermo-sensitive copying process, which ink composition consists essentially of an oil-containing vehicle, at least one chromatic-coloured colouring material in an amount of from 15% to 30% by weight of the ink composition and finely-divided antimony in an amount sufficient to give satisfactory thermosensitive copy by imparting infra-red absorptive properties to the ink composition without the antimony being present in an amount sufiiciently large to obscure the chromatic colour of the ink composition.
  • a violet-coloured ink composition according to claim 1 which consists in parts by weight of 29 parts of lard oil, 31.5 parts of light mineral oil, 2.4 parts of triethanolamine oleate, 20.5 parts of Strong Violet Lake and 16.6 parts of finely-divided antimony.
  • a red-coloured ink composition according to claim 1 which consists in parts by weight of 41.7 parts of castor oil, 10.4 parts of lard oil, 14.0 parts of light mineral oil, 13.0 parts of Strong Red Lake, 3.5 parts of Dark Red Lake, 0.8 part of antioxidant and 16.6 parts of finelydivided antimony.
  • a blue-coloured ink composition according to claim 1 which consists in parts by weight of 26.5 parts of lard oil, 29.5 parts of light mineral oil, 2.2 parts of triethanolamine oleate, 25.0 parts of Strong Blue Lake and 16.7 parts of finely-divided antimony.
  • a green-coloured ink composition according to claim 1 which consists in parts by weight of 62.5 parts of light mineral oil, 20.8 parts of Strong Deep Green Lake and 16.7 parts of finely-divided antimony.
  • a coloured transfer sheet material which is adapted to produce coloured written copy matter capable of being copied by a thermo-sensitive copying process, which consists of a paper web carrying a transferable coloured ink composition consisting essentially of an oil-containing vehicle, at least one chromatic-coloured colouring material in an amount of from 15% to 30% by weight of the ink composition and finely-divided antimony in an amount of from 15 %to 25% by weight of the ink composition, the antimony thereby being present in an amount sufi'icient to give satisfactory thermosensitive copy by imparting infra-red absorptive properties to the ink composition without obscuring the chromatic colour of the ink composition.
  • the coloured transfer sheet material of claim 6 in which the transferable coloured ink composition consists, in parts by weight of, 12.2 parts of fatty grey carnauba wax, 11.9 parts of ceresin wax and 30.7 parts of mineral oil as the oil-containing vehicle, 27.7 parts of a Strong Lake colour selected from the group consisting of Strong Violet Lake, Strong Red Lake, Dark Red Lake, Strong Blue Lake and Strong Deep Green Lake and 17.5 parts of finely-divided antimony.
  • a coloured inked ribbon adapted to produce coloured written copy matter capable of being copied by a thermosensitive copying process which consists of a ribbon impregnated with a coloured ink composition consisting essentially of an oil-containing vehicle, at least one chromatic-coloured colouring material in an amount of from 15% to 30% by weight of the ink composition and finely-divided antimony in an amount of from 15% to 25% of the ink composition, the antimony thereby being present inan amount suflicient to give satisfactory thermosensitive copy by imparting infra-red absorptive properties to the ink composition without obscuring the chromatic colour of the ink composition.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Description

- THERMOSENSITIVE OLOURING MATERIAL Frederick George Francis, Old Southgate, London, and 'fJohniAlbert ,Seaward, Enfield, England, assiguors to Caribonum ll'imitemLondon, England, a British com '2 1:10 'DraWiBg'.'- Filed May 7,1958, Ser. No. 733,469 Cla1ms-pr10rity, appli ation Gre'at Britain May 16, 1 957- 1; .f'. 1(Cl.. 106-1-2'3) presentinvention relatesjtocolouring materials and is-concerned particularly, but not exclusively, with colouring materials employed in the manufacture of inks, typewriter and other inked ribbons and carbon papers.
Copying processesare 'known, which make use of thermo-sensitive paper or other sheet material. In such processes, 'a sheet of thermo-sensitive material, such as a sheet of paper; coated with one or, more layers of a thermo sensitive composition which produces a distinctive colouration in those areas; subjected to a suitable increase in temperature, is placed in contact with and above the printed, typewritten or other material to be copied and the sheets, are then irradiated with infra-red rays. This generates a heat pattern inv the copy sheet in accordance with the characters or other markings on the material to 2,992,121 2 Patented July 11,1961
matic-coloured, isused hereinafterand. in the appended claims to mean such. coloured, non-blackpigments or othercolouring materials.
gAcoording to the invention, a chromatic-coloured ink composition is provided,-.which is adapted to produce coloured written copy matter capable of'being copied by a thermosensitive copyingprocess, which ink composition consists essentially .of an oil-containing vehicle, at least one chromatic-coloured colouring material in an amount of from 15% to 30% by weight of the ink composition and finely-divided antimony in an amount sufficient to give "satisfactory thermosensitive copy by imparting infrared absorptive properties to the ink composition without the antimony being'presjent in an -amount sufliciently large to 'obscure the chromatic colour of the] ink composition.
The colouring material ink composition of the present invention may be embodiedin'sor used as printing or other'inks, or may be used to impregnate typewriter and other inked ribbons or may be incorporated in a transferable. composition usedinthe manufacture of carbon paper and other. transfer sheet material.
be copiedend this heat pattern-develops'the copy sheet byproducing the colouration in the thermo-sensitive composition thereof to produce'a copy of the original material. In general, the infra-red rays are directed on to the material to be copied'through the copy sheet, which is not itself absorbentof infra-red radiation.
' It has been found that, generally speaking, satisfactorycopiescan be obtained by such processes only from black writings, drawings or typings and black pencil writings and that it is'virtually impossible to operate a thermosensitive copying process'with coloured material. This method of copying is therefore not normally feasible with material which is partly in black and partly in a colour, e.g. red. Good copies can be obtained, however, from typed material produced by means of a black typewriter ribbon, which is impregnated with an which contains carbon black. Red typewriter ribbons and other coloured ribbons, such as purple, green and blue, are almost completely unsatisfactory from the'standpoint of obtaining copiesbyfmeans of ther fno-sensitive copying paper from material typed with them. Depending upon the colouring' material used, brown ribbons will sometimes produce matter which can be 'copiedin' this way, particularly if the brown colouring material in the typewriter ribbon ink is obtained by the addition 'of carbon black to another colouring matter, such as a red pigment.
In order to overcome this defectof coloured material, it has been proposed to add graphite'in a very high proportion in respect of the other coloured pigmentary matter used in the manufacture of typewriterribbon ink. German Gebrauchsmuster No, 1,734,641 refers to the use of a "small quantity of graphite for this 'purpose, butit has not been found possible to obtain any useful results unless large quantities are employed. This is the principal disadvantage of graphite for this purpose, since the high proportion necessary to incorporate sufficient black into the colouring material to enable writings produced with it to be absorbent of infra-red radiation renders the writings so dull in character as to be unsatisfactory for ordinary purposes.
It is therefore an object of the present invention to provide a coloured, i.e. non-black, colouring material which overcomes the defects of ordinary colouring materials in respect of thermo-sensitive copying processes and also avoids the disadvantages attendant upon graphitecontaining colouring materials. The expression chro- .It hasbeenfound that fairly large quantities of powdered or otherwise finely-divided antimony are generally required to give satisfactory results, but the colour of the other pigmentary or colouring matter used in the colouring. material. is not adversely affected and very good results can be obtained in producing written matter by printing, writing, typing or by using carbon paper. The actual quantity of antimony required to give the best results, as regards the quality of copies produced from the ,written matter ;by*means of a thermo-sensitive copy paper, depends to some extent upon'the colour and nature of the pigment or pigments, but in general it has been found satisfactory to employ the powdered antimony inan' amount of 15 to 25% by weight of the ink, the latter preferably containing 15 to 30% by weight of lake colour or other pigment or coloured material.
Commercial antimony can be readily powdered and can be'mixe'dand ground with the other ingredients of theink or other colouring material as if it were a pig- In entself it is carefully ground, such as on a triple roll mill, antimony can be obtained in an extremely finelydivided condition. 'If such an ink is used to impregnate a typewriter ribbon, the material produced by typing with the ribbon is found to be a better and much-brighter colour than that obtained with a graphite-containing ink ribbon. Y.
In order that the invention may be readily understood, the following specific examples are given.
Example 1 Parts by weight Lardoil 29 Light mineral oil 31.5 Triethanolamine oleate i p, b 2.4 Strong Violet Lake 20. Antimony 16.6
Example 2 Castor oil 41.7 Lard oil 10.4 Light mineral oil 14.0 Strong Red Lake 13.0 Dark Red Lake 3.5 Anti-oxidant 1 0.8 Antimony 16.6
1 Nonoxol D.C.P.
3 2 Example 3 Lard oil 26.5 Light mineral oil 29.5 Triethanolamine oleate 2.2 Strong Blue Lake 25.0 Antimony 16.7
Example 4 Light mineral oil 62.5 Strong Deep Green Lake 20.8 Antimony 16.7
The foregoing examples set out compositions suitable for use as inks, which can be used as such or used to impregnate typewriter or other ribbons. The following Example 5 sets out a formulation for the transferable coating of a carbon paper.
Example 5 Parts by weight The colour of the particular lake is chosen to suit the desired colour of the carbon paper dope, from the Strong Violet Lake, Strong Red Lake, Dark Red Lake, Strong Blue Lalze land Strong Deep Green Lake mentioned in Examples 1 o a ove.
We claim:
1. A coloured ink composition which is adapted to produce coloured written copy matter capable of being copied by a thermo-sensitive copying process, which ink composition consists essentially of an oil-containing vehicle, at least one chromatic-coloured colouring material in an amount of from 15% to 30% by weight of the ink composition and finely-divided antimony in an amount sufficient to give satisfactory thermosensitive copy by imparting infra-red absorptive properties to the ink composition without the antimony being present in an amount sufiiciently large to obscure the chromatic colour of the ink composition.
2. A violet-coloured ink composition according to claim 1, which consists in parts by weight of 29 parts of lard oil, 31.5 parts of light mineral oil, 2.4 parts of triethanolamine oleate, 20.5 parts of Strong Violet Lake and 16.6 parts of finely-divided antimony.
3. A red-coloured ink composition according to claim 1, which consists in parts by weight of 41.7 parts of castor oil, 10.4 parts of lard oil, 14.0 parts of light mineral oil, 13.0 parts of Strong Red Lake, 3.5 parts of Dark Red Lake, 0.8 part of antioxidant and 16.6 parts of finelydivided antimony.
4. A blue-coloured ink composition according to claim 1, which consists in parts by weight of 26.5 parts of lard oil, 29.5 parts of light mineral oil, 2.2 parts of triethanolamine oleate, 25.0 parts of Strong Blue Lake and 16.7 parts of finely-divided antimony.
5. A green-coloured ink composition according to claim 1, which consists in parts by weight of 62.5 parts of light mineral oil, 20.8 parts of Strong Deep Green Lake and 16.7 parts of finely-divided antimony.
6. A coloured transfer sheet material which is adapted to produce coloured written copy matter capable of being copied by a thermo-sensitive copying process, which consists of a paper web carrying a transferable coloured ink composition consisting essentially of an oil-containing vehicle, at least one chromatic-coloured colouring material in an amount of from 15% to 30% by weight of the ink composition and finely-divided antimony in an amount of from 15 %to 25% by weight of the ink composition, the antimony thereby being present in an amount sufi'icient to give satisfactory thermosensitive copy by imparting infra-red absorptive properties to the ink composition without obscuring the chromatic colour of the ink composition.
7. The coloured transfer sheet material of claim 6 in which the transferable coloured ink composition consists, in parts by weight of, 12.2 parts of fatty grey carnauba wax, 11.9 parts of ceresin wax and 30.7 parts of mineral oil as the oil-containing vehicle, 27.7 parts of a Strong Lake colour selected from the group consisting of Strong Violet Lake, Strong Red Lake, Dark Red Lake, Strong Blue Lake and Strong Deep Green Lake and 17.5 parts of finely-divided antimony.
8. A coloured inked ribbon adapted to produce coloured written copy matter capable of being copied by a thermosensitive copying process, which consists of a ribbon impregnated with a coloured ink composition consisting essentially of an oil-containing vehicle, at least one chromatic-coloured colouring material in an amount of from 15% to 30% by weight of the ink composition and finely-divided antimony in an amount of from 15% to 25% of the ink composition, the antimony thereby being present inan amount suflicient to give satisfactory thermosensitive copy by imparting infra-red absorptive properties to the ink composition without obscuring the chromatic colour of the ink composition.
References. Cited in the file of this patent UNITED STATES PATENTS OTHER REFERENCES Murmann: Zeitschrift-fiir Physik, vol. 54, March 1929 (pages 746-748).
Koller: General Electric Review, Infra-Red, March 1941 (pages 167-173).
Mitchell: The Analyst (1935), vol. (pages 454-61).

Claims (1)

1. A COLOURED INK COMPOSITION WHICH IS ADAPTED TO PRODUCE COLOURED WRITTEN COPY MATTER CAPABLE OF BEING COPIED BY A THERMO-SENSITIVE COPYING PROCESS, WHICH INK COMPOSITION CONSISTS ESSENTIALLY OF AN OIL-CONTAINING VEHICLE, AT LEAST ONE CHROMATIC-COLOURED COLOURING MATERIAL IN AN AMOUNT OF FROM 15% TO 30% BY WEIGHT OF THE INK COMPOSITION AND FINELY-DIVIDED ANTIMONY IN AN AMOUNT SUFFICIENT TO GIVE SATISFACTORY THERMOSENSITIVE COPY BY IMPARTING INFRA-RED ABSORPTIVE PROPERTIES TO THE INK COMPOSITION WITHOUT THE ANTIMONY BEING PRESENT IN AN AMOUNT SUFFICIENTLY LARGE TO OBSCURE THE CHROMATIC COLOUR OF THE INK COMPOSITION.
US73346958 1957-05-16 1958-05-07 Thermosensitive colouring materials Expired - Lifetime US2992121A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2992121X 1957-05-16
GB1563257A GB842655A (en) 1957-05-16 1957-05-16 Improvements in or relating to colouring materials

Publications (1)

Publication Number Publication Date
US2992121A true US2992121A (en) 1961-07-11

Family

ID=32313997

Family Applications (1)

Application Number Title Priority Date Filing Date
US73346958 Expired - Lifetime US2992121A (en) 1957-05-16 1958-05-07 Thermosensitive colouring materials

Country Status (2)

Country Link
US (1) US2992121A (en)
GB (1) GB842655A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404995A (en) * 1965-09-20 1968-10-08 Columbia Ribbon Carbon Mfg Hectograph products and processes
US3446662A (en) * 1966-01-27 1969-05-27 Columbia Ribbon Carbon Mfg Transfer element containing infrared radiation absorbing material
US3476578A (en) * 1965-06-22 1969-11-04 Agfa Gevaert Nv Thermographic method for producing thermostable prints
US3545997A (en) * 1966-01-26 1970-12-08 Pitney Bowes Inc Method for coating on a substrate
US3616898A (en) * 1969-09-08 1971-11-02 Abbott Lab Peelable seal package
US3619290A (en) * 1968-07-19 1971-11-09 Addressograph Multigraph Method of making magnetic transfer sheet and article
US3887742A (en) * 1972-04-13 1975-06-03 Richard E Reinnagel Copy resistant documents
US5691098A (en) * 1996-04-03 1997-11-25 Minnesota Mining And Manufacturing Company Laser-Induced mass transfer imaging materials utilizing diazo compounds
US5747217A (en) * 1996-04-03 1998-05-05 Minnesota Mining And Manufacturing Company Laser-induced mass transfer imaging materials and methods utilizing colorless sublimable compounds

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1717140A (en) * 1926-08-30 1929-06-11 Zahner & Schiess & Co Lead coating of articles
US1885388A (en) * 1925-12-23 1932-11-01 Goodrich Co B F Transfer composition
US2435223A (en) * 1944-02-26 1948-02-03 Western Union Telegraph Co Means for producing facsimile telegraph signals
US2441945A (en) * 1940-08-24 1948-05-25 Jasco Inc Copolymer compositions containing finely divided metal particles
US2503758A (en) * 1947-08-16 1950-04-11 Eastman Kodak Co Fusion photothermography
US2740895A (en) * 1950-08-21 1956-04-03 Minnesota Mining & Mfg Thermoprinting apparatus
US2936247A (en) * 1957-06-19 1960-05-10 Caribonum Ltd Transfer sheets for forming thermosensitive copies

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885388A (en) * 1925-12-23 1932-11-01 Goodrich Co B F Transfer composition
US1717140A (en) * 1926-08-30 1929-06-11 Zahner & Schiess & Co Lead coating of articles
US2441945A (en) * 1940-08-24 1948-05-25 Jasco Inc Copolymer compositions containing finely divided metal particles
US2435223A (en) * 1944-02-26 1948-02-03 Western Union Telegraph Co Means for producing facsimile telegraph signals
US2503758A (en) * 1947-08-16 1950-04-11 Eastman Kodak Co Fusion photothermography
US2740895A (en) * 1950-08-21 1956-04-03 Minnesota Mining & Mfg Thermoprinting apparatus
US2936247A (en) * 1957-06-19 1960-05-10 Caribonum Ltd Transfer sheets for forming thermosensitive copies

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3476578A (en) * 1965-06-22 1969-11-04 Agfa Gevaert Nv Thermographic method for producing thermostable prints
US3404995A (en) * 1965-09-20 1968-10-08 Columbia Ribbon Carbon Mfg Hectograph products and processes
US3545997A (en) * 1966-01-26 1970-12-08 Pitney Bowes Inc Method for coating on a substrate
US3446662A (en) * 1966-01-27 1969-05-27 Columbia Ribbon Carbon Mfg Transfer element containing infrared radiation absorbing material
US3619290A (en) * 1968-07-19 1971-11-09 Addressograph Multigraph Method of making magnetic transfer sheet and article
US3616898A (en) * 1969-09-08 1971-11-02 Abbott Lab Peelable seal package
US3887742A (en) * 1972-04-13 1975-06-03 Richard E Reinnagel Copy resistant documents
US5691098A (en) * 1996-04-03 1997-11-25 Minnesota Mining And Manufacturing Company Laser-Induced mass transfer imaging materials utilizing diazo compounds
US5747217A (en) * 1996-04-03 1998-05-05 Minnesota Mining And Manufacturing Company Laser-induced mass transfer imaging materials and methods utilizing colorless sublimable compounds

Also Published As

Publication number Publication date
GB842655A (en) 1960-07-27

Similar Documents

Publication Publication Date Title
US3363557A (en) Heat transfer of indicia containing sublimable coloring agent
US2710263A (en) Heat-sensitive copying-paper
DE69616699T2 (en) Thermal transfer layer
US2872340A (en) Transfer element and method of making the same
US2992121A (en) Thermosensitive colouring materials
US2755203A (en) Process of converting a polyamino-triarylmethane dye coating on a base from a stabilized leuco form to a colored form
DE1571815C3 (en) Printing form for sublimation printing and color foil for their production
US4732614A (en) Novel correction compositions and process for using same
US3239366A (en) Thermotransfer sheet material and copying systems utilizing same
US3934069A (en) Non-smudging pressure-sensitive copying material
US2813043A (en) Heat-sensitive copying-paper
US3282709A (en) Pressure indicia transfer sheeting and method of producing same
US2138836A (en) Material for transfer processes
US2519321A (en) Transfer ink
US2936247A (en) Transfer sheets for forming thermosensitive copies
US3062676A (en) Smudge-resistant pressure-sensitive transfer element for placing smudgeresistant marks
US3519464A (en) Master paper for thermal page printer
US2375230A (en) Ink
US2155862A (en) Duplicating ink
US3436234A (en) Duplicating ink
US2236602A (en) Ink for carbon paper
US1968083A (en) Transfer
US2040075A (en) Transfer process
US2155861A (en) Duplicating ink and method of making the same
USRE27892E (en) Heat transfer of indicia containing sublimable coloring agent