US3148617A - Copy process - Google Patents

Copy process Download PDF

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Publication number
US3148617A
US3148617A US233036A US23303662A US3148617A US 3148617 A US3148617 A US 3148617A US 233036 A US233036 A US 233036A US 23303662 A US23303662 A US 23303662A US 3148617 A US3148617 A US 3148617A
Authority
US
United States
Prior art keywords
original
transfer
sheet
coating
copy
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
US233036A
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English (en)
Inventor
Allan I Roshkind
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.)
AB Dick Co
Original Assignee
AB Dick Co
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
Priority to BE639208D priority Critical patent/BE639208A/xx
Priority to NL299360D priority patent/NL299360A/xx
Application filed by AB Dick Co filed Critical AB Dick Co
Priority to US233036A priority patent/US3148617A/en
Priority to GB37539/63A priority patent/GB997766A/en
Application granted granted Critical
Publication of US3148617A publication Critical patent/US3148617A/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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/382—Contact thermal transfer or sublimation processes
    • B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395

Definitions

  • This invention relates to an office copy process, and more particularly to a process which may be employed to reproduce printed material from matter previously printed in a substantially continuous or batch operation.
  • the invention will be described with reference to a specific problem arising in the continuous production of addresses on an endless strip of paper, as by electrostatic means, after which the strip is subdivided into separate labels which are applied to the mailing pieces. Oftentimes it is desirable also to secure the addresses on other promotional or mailing items and the like, without pasting a label thereon or without the necessity to make a complete re-run for producing such additional sets of labels for application onto the promotional pieces and the like.
  • FIGURE 1 is a flow diagram illustrating one ramification of the practice of this invention
  • FIGURE 2 is a flow diagram similar to that of FIG. 1 illustrating a further ramification in the practice of this invention.
  • FIGURE 3 is a flow diagram similar to that of FIGS. 1 and 2 showing a still further ramification of the practice of this invention.
  • the basic elements of this invention comprise 1) an Original 0 in the form of a sheet having an image 12 containing a material which absorbs infra-red or other radiations that generate heat upon absorption and hereinafter defined as a radiation absorbing-heat generating material; (2) a transfer sheet T formed of an infra-red transparent base sheet having a continuous transfer coating 22 which is infra-red transparent but which contains a coloring ingredient or tinctorial agent to impart color and which is reducible to an adhesive or flowable state for transfer when heated to an elevated temperature, preferably above 150 F.; and (3) a copy sheet C in the form of a paper or other sheet adapted to receive the color image.
  • the substantially infra-red transparent, colored transfer coating 22 of the transfer sheet can be formulated of a conventional base of the type used in carbon paper or as a transfer sheet in spirit duplication, but instead of making use of carbon or other infrared-absorbing material as the tinctorial agent, use should be made of a synthetic or organic dyestulf which is not infra-red-absorbing, such as an aniline dyestutf, azo dyestuff, and the like.
  • the base of the coating may be formulated of a thermoplastic resin or wax, with or without plasticizer, and combined to give a melting point range which starts at about F. or slightly above.
  • the following will be representative of a suitable coating composition which can be applied in the desired coating weights as a hot melt:
  • the original 0 is illustrated as a continuous paper strip 10 having the image 12 produced as a continuous operation, as by electronic readout means, wherein an electrostatic image is transmitted by a cathode ray tube onto the dielectric coating on the surface of the paper base sheet and wherein the electrostatic image is subsequently developed by exposure to oppositely charged, finely divided colored particles which cling to the charged portions of the surface and are later fused or otherwise developed to define the permanent image 12 on the base sheet.
  • the foregoing means and method for development of the original image 12 on the paper strip 10 is more fully described in the copending application of Englestad and Borneman, Serial No. 135,375, filed August 31, 1961, and entitled Fuser Unit for Electronic Printing Machine.
  • the original capable of use in the practice of this invention can be otherwise produced as long as the image 12 contains an infra-red absorbing-heat generating material and as long as the non-imaged portions of the sheet are substantially less infra-red absorbent than the image.
  • Suitable infra-red absorbing-heat generating materials which may be used for the development of the electrostatic image can be formulated of carbon black embodied in a suitable thermoplastic resinous carrier, such as asphaltum, shellac, polyterpenes, polyvinyl acetate, ethyl cellulose, and the like materials having a melting point range which is usually above about 200 F.
  • a suitable thermoplastic resinous carrier such as asphaltum, shellac, polyterpenes, polyvinyl acetate, ethyl cellulose, and the like materials having a melting point range which is usually above about 200 F.
  • Such developing pigments are usually mixed with glass beads, plastic beads, iron filings or a dielectric liquid as a vehicle for distribution and charging the developing pigment or powder.
  • Suitable developing powders are well known and described in numerous patents, such as Patent No. 2,986,521.
  • the strip 1i) having the developed reverse image 12 thereon is brought into superficial face-to-face contact with the transfer sheet T, with the transfer coating 22 in surface contact with the surface of the original strip carrying the image 12. While the two sheets are pressed into contact one with the other, as between glass plates or the combination of a glass plate and a shoe or the like, radiations 14 rich in infra-red are directed downwardly onto the assembly, as illustrated by the arrows. The radiations penetrate the glass hold-down plate 16 and the transfer sheet T and the transfer coating 22. Those striking the image 12 of the original are absorbed and converted into heat to form a heat pattern which corresponds to the image.
  • the infra-red radiations striking the non-imaged portions of the sheet 10 continue through, so that little if any radiations are absorbed.
  • the heat pattern that forms substantially instantaneously upon radiation transfers to the adjacent portions of the coating 22 to cause reduction of the corresponding portions of the coating to an adhesive or flowable state whereby portions of the coating corresponding to the image transfer from the transfer sheet T to the original to constitute a heat-softenable color coating 24 covering only the infra-red absorbing image portions 12 of the original.
  • the imaged portions 12 of the original are covered with a colored heat-softenable coating 24.
  • the original 0 with the colored heatsoftenable coating 24 onthe imaged portions 12 is brought into superficial surface contact with the copy sheet 30 with the coated imaged portion in surface contact with the side of the copy sheet intended to receive the image. While the original and the copy sheet are pressed into contacting relationship one with the other, heat is introduced, as by means of the heated pressure rollers 32 suflicient to raise the temperature of the colored coating 24 to its softened or adhesive state, whereby portions of the coating corresponding to the image transfers from the original to the copy sheet to reproduce the image thereon. Thereafter, when the copy sheet 30 is separated from the imaged original, an image in the form of the color coating will have been reproduced on the copy sheet. More than one copy can be thus reproduced from the original until the colored transfer coating 24 thereon is exhausted.
  • the original 0 with the image 12 thereon also functions as the master from which one or more copies can thereafter be thermographically reproduced' While the ramification has been described as a continuous process, it will be understood that the steps described are capable of individual and independent operation as by:
  • the imaged master and the copy sheet can be heated between platens, as in FIG. 2, or they can be heated by air, or by resistance heating, or by infra-red radiation as before, or by other suitable heating means. It will be understood that instead of directing the infra-red radiations downwardly onto the transfer sheet T for penetration of the transfer sheet to the image, the infra-red radiations may be directed upwardly onto the original for penetration of the original to the image 12. By way of still further modification, the original may be arranged uppermost or lowermost without significant change in the operation.
  • the ramification shown in FIG. 2 is substantially the same as that of FIG. 1, with the exception that the original 16) with the image 12 is positioned with the image 12 on the side away from and out of contact with the coating 22 on the transfer sheet, so that a direct image will be formed on the back side of the original, instead of a reverse image.
  • the radiations 14 directed onto the original are absorbed by the image portions 12 to generate the heat pattern.
  • the heat pattern travels through the base sheet to the transfer coating 22 of the transfer sheet 20 to effect the described adhesion of the corresponding portions of the colored coating to the back side 16 of the original.
  • portions 26 of the colored coating, corresponding to the image are retained on the back side of the original-master sheet.
  • the copy sheet St is pressed into surface contact with the back side 11 of the original, as between heated platens 34, to cause transfer of the colored coating corresponding to the image from the back side of the original-master to the copy sheet to reproduce the image 36 thereon.
  • the original also constitutes the master with which copies are reproduced.
  • a separate sheet 50 is used as a master, so that no modification occurs in the original in the reproduction process.
  • a thin master sheet 50 is interposed between the imaged original and the coated surface of the transfer sheet.
  • the original can be arranged with the image 12 in contact. with the surface of the master, as in FIG. 1, or away therefrom, as in FIG. 2, depending on whether it is desirable to secure a reverse or a direct image on the master sheet 50.
  • the generated heat pattern transfers to the coating on the transfer sheet, whereby portions of said coating corresponding to the heat pattern remain as a colored image 52 on the surface of the master sheet 50, upon separation.
  • the master sheet 50 is brought into surface contact with a copy sheet 30 concurrently with the application of heat, as by the heated platens 34, to cause portions of the colored image on the master to transfer to the copy sheet for reproduction of the image 54 thereon.
  • the imaged master can be used again to produce additional copies until the heatsoftened colored coating 24, 26, or 52, corresponding to the image, is exhausted from the original or the master, as the case may be.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Decoration By Transfer Pictures (AREA)
US233036A 1962-10-25 1962-10-25 Copy process Expired - Lifetime US3148617A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE639208D BE639208A (enrdf_load_stackoverflow) 1962-10-25
NL299360D NL299360A (enrdf_load_stackoverflow) 1962-10-25
US233036A US3148617A (en) 1962-10-25 1962-10-25 Copy process
GB37539/63A GB997766A (en) 1962-10-25 1963-09-24 Thermographic copy process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US233036A US3148617A (en) 1962-10-25 1962-10-25 Copy process

Publications (1)

Publication Number Publication Date
US3148617A true US3148617A (en) 1964-09-15

Family

ID=22875630

Family Applications (1)

Application Number Title Priority Date Filing Date
US233036A Expired - Lifetime US3148617A (en) 1962-10-25 1962-10-25 Copy process

Country Status (4)

Country Link
US (1) US3148617A (enrdf_load_stackoverflow)
BE (1) BE639208A (enrdf_load_stackoverflow)
GB (1) GB997766A (enrdf_load_stackoverflow)
NL (1) NL299360A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3252413A (en) * 1964-07-22 1966-05-24 Sharkey Melvin Heat duplicating products and process
US3302565A (en) * 1963-09-19 1967-02-07 Columbia Ribbon & Carbon Thermographic methods and products
US3363558A (en) * 1965-03-02 1968-01-16 Everett A. Johnson Tabulatable recording and duplicating master
US3414724A (en) * 1964-12-11 1968-12-03 Lamm Ab Carl Method and apparatus for duplicating text, pictures and the like on unprepared copy receiving sheets
US3436293A (en) * 1965-10-15 1969-04-01 Columbia Ribbon Carbon Mfg Thermographic duplicating process
US3437806A (en) * 1966-03-25 1969-04-08 Eastman Kodak Co Thermographic copying apparatus for making a predetermined number of copies
US3552317A (en) * 1966-02-08 1971-01-05 Gerhard Ritzerfeld Method of actuating a master and printing therefrom while on a printing drum
US3975563A (en) * 1974-05-08 1976-08-17 Minnesota Mining And Manufacturing Company Image transfer sheet material
US4095234A (en) * 1976-07-08 1978-06-13 Sharp Kabushiki Kaisha Recording apparatus for providing lustrous printing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501495A (en) * 1944-05-05 1950-03-21 Ibm Copying process
US2844094A (en) * 1955-01-05 1958-07-22 Addressograph Multigraph Printing machine and method for transferring ink by heat and pressure
FR1165125A (fr) * 1955-11-21 1958-10-20 Ditto Procédé de préparation de clichés pour duplicateurs à partir d'un original
CA624372A (en) * 1961-07-25 Haloid Xerox Inc. Method and apparatus for pattern reproduction
US3048695A (en) * 1959-06-22 1962-08-07 Warren S D Co Copy method and apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA624372A (en) * 1961-07-25 Haloid Xerox Inc. Method and apparatus for pattern reproduction
US2501495A (en) * 1944-05-05 1950-03-21 Ibm Copying process
US2844094A (en) * 1955-01-05 1958-07-22 Addressograph Multigraph Printing machine and method for transferring ink by heat and pressure
FR1165125A (fr) * 1955-11-21 1958-10-20 Ditto Procédé de préparation de clichés pour duplicateurs à partir d'un original
US3048695A (en) * 1959-06-22 1962-08-07 Warren S D Co Copy method and apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302565A (en) * 1963-09-19 1967-02-07 Columbia Ribbon & Carbon Thermographic methods and products
US3252413A (en) * 1964-07-22 1966-05-24 Sharkey Melvin Heat duplicating products and process
US3414724A (en) * 1964-12-11 1968-12-03 Lamm Ab Carl Method and apparatus for duplicating text, pictures and the like on unprepared copy receiving sheets
US3363558A (en) * 1965-03-02 1968-01-16 Everett A. Johnson Tabulatable recording and duplicating master
US3436293A (en) * 1965-10-15 1969-04-01 Columbia Ribbon Carbon Mfg Thermographic duplicating process
US3552317A (en) * 1966-02-08 1971-01-05 Gerhard Ritzerfeld Method of actuating a master and printing therefrom while on a printing drum
US3648609A (en) * 1966-02-08 1972-03-14 Gerhard Ritzerfeld Apparatus for activating a printing master
US3437806A (en) * 1966-03-25 1969-04-08 Eastman Kodak Co Thermographic copying apparatus for making a predetermined number of copies
US3975563A (en) * 1974-05-08 1976-08-17 Minnesota Mining And Manufacturing Company Image transfer sheet material
US4095234A (en) * 1976-07-08 1978-06-13 Sharp Kabushiki Kaisha Recording apparatus for providing lustrous printing

Also Published As

Publication number Publication date
BE639208A (enrdf_load_stackoverflow)
NL299360A (enrdf_load_stackoverflow)
GB997766A (en) 1965-07-07

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