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GB1000986A - Improvements in or relating to hectographic sheets - Google Patents

Improvements in or relating to hectographic sheets

Info

Publication number
GB1000986A
GB1000986A GB1?452/62D GB145262D GB1000986A GB 1000986 A GB1000986 A GB 1000986A GB 145262 D GB145262 D GB 145262D GB 1000986 A GB1000986 A GB 1000986A
Authority
GB
United Kingdom
Prior art keywords
dyestuff
magnetic
binder
hectographic
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
Application number
GB1?452/62D
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.)
Columbia Ribbon and Carbon Manufacturing Co Inc
Original Assignee
Columbia Ribbon and Carbon Manufacturing Co Inc
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 Columbia Ribbon and Carbon Manufacturing Co Inc filed Critical Columbia Ribbon and Carbon Manufacturing Co Inc
Publication of GB1000986A publication Critical patent/GB1000986A/en
Expired legal-status Critical Current

Links

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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/46—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography characterised by the light-to-heat converting means; characterised by the heat or radiation filtering or absorbing means or layers
    • B41M5/465—Infrared radiation-absorbing materials, e.g. dyes, metals, silicates, C black
    • 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
    • B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/04—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet using solvent-soluble dyestuffs on the master sheets, e.g. alcohol-soluble

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Printing Methods (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

Compositions for making the transfer layer in a hectographic transfer sheet (see Division D2) comprise a hectographic dyestuff or an infra-red radiation-absorbing, magnetic pigment or both and a binder. The compositions in examples comprise: (1) carnauba wax, raw montan wax, beeswax, lanolin, mineral oil, crystal violet and magnetic iron oxide; (3) chlorinated polyphenyls, beeswax, crystal violet, iron filings and carbon tetrachloride; and (5) carnauba wax, polybutene, beeswax, mineral oil and magnetic iron oxide. Reference has been directed by the Comptroller to Specification 683,505.ALSO:Compositions for making the transfer layer in a hectographic transfer sheet (see Division D2) comprise a hectograph dyestuff, or an infra-red radiation-absorbing, magnetic pigment or both and a binder. The compositions in examples comprise: (2) ethylcellulose, lanolin, mineral oil, spirit black dyestuff, metallic iron powder and solvent; (5) Carnauba wax, polybutene, beeswax, mineral oil and magnetic iron oxide; and (6) ethylcellulose, magnetic iron oxide, methyl alcohol and water. Reference has been directed by the Comptroller to Specification 683,505.ALSO:A hectographic transfer sheet for the placing of magnetically sensible, thermographically reproducible, duplicate images on a master sheet comprises a flexible foundation and a pressure-transferable coating which includes both hectograph dyestuff and infra-red radiation-absorbing, magnetic pigment dispersed in a binder material. The dyestuff and the pigment may be both in the same layer, or a layer of binder and pigment may overlie a layer of binder and dyestuff. The foundation sheet may be of paper, polyethylene teraphthalate or regenerated cellulose. The binder may be a wax, ethyl-cellulose, polyvinyl acetate, polyvinyl chloride and copolymers, polystyrene, styrene-isoprene copolymer, chlorinated polyphenyls or rosin-modified alkyd resins. The pigment may be metallic iron or the magnetic black or red oxide of iron. The dyestuff may be crystal violet or spirit black or a pair of complementary colour-formers such as gallic acid and iron chloride or colourless components that react to form an azo dye. Hectographic master sheets made from these transfer sheets can be filed, sorted and selected automatically using magnetic sorting means. Reference has been directed by the Comptroller to Specification 683,505.
GB1?452/62D 1961-03-27 1962-03-26 Improvements in or relating to hectographic sheets Expired GB1000986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US98530A US3151550A (en) 1961-03-27 1961-03-27 Duplication

Publications (1)

Publication Number Publication Date
GB1000986A true GB1000986A (en) 1965-08-11

Family

ID=22269699

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1?452/62D Expired GB1000986A (en) 1961-03-27 1962-03-26 Improvements in or relating to hectographic sheets

Country Status (3)

Country Link
US (1) US3151550A (en)
DE (1) DE1260493B (en)
GB (1) GB1000986A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL275631A (en) * 1961-03-08
NL284249A (en) * 1961-10-11 1900-01-01
US3337361A (en) * 1964-01-06 1967-08-22 Kee Lox Mfg Company Process of making pressure sensitive transfer sheet
DE1571804B2 (en) * 1966-01-17 1973-11-08 Gerhard 1000 Berlin Ritzerfeld Process for the production and regeneration of printable mirror image printing forms and layer transfer sheet for this purpose
US3849170A (en) * 1971-04-01 1974-11-19 Standard Register Co Coating composition for optical projection
US5171650A (en) * 1990-10-04 1992-12-15 Graphics Technology International, Inc. Ablation-transfer imaging/recording

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA552750A (en) * 1947-05-10 1958-02-04 Minnesota Mining And Manufacturing Company Heat-sensitive copying-paper
US2671734A (en) * 1949-03-25 1954-03-09 Rose Ribbon & Carbon Mfg Co In Nonsmudging transfer sheet
US2744031A (en) * 1949-10-15 1956-05-01 Ncr Co Sheet having a transferable coating containing magnetizable material
US2800077A (en) * 1952-03-27 1957-07-23 Dick Co Ab Planographic printing plates and methods for manufacturing same
US2791310A (en) * 1952-06-28 1957-05-07 Rca Corp Character printing and encoding apparatus
US2838994A (en) * 1956-04-11 1958-06-17 Dick Co Ab Elements for use in practice of spirit duplication process
US2912344A (en) * 1957-10-11 1959-11-10 Columbia Ribbon Carbon Mfg Pressure-sensitive transfer element for placing smudge-resistant marks
US2993805A (en) * 1958-09-12 1961-07-25 Ibm Method of printing on vesicular material

Also Published As

Publication number Publication date
US3151550A (en) 1964-10-06
DE1260493B (en) 1968-02-08

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