US3776756A - Correction material and method for the manufacture thereof - Google Patents

Correction material and method for the manufacture thereof Download PDF

Info

Publication number
US3776756A
US3776756A US00222538A US3776756DA US3776756A US 3776756 A US3776756 A US 3776756A US 00222538 A US00222538 A US 00222538A US 3776756D A US3776756D A US 3776756DA US 3776756 A US3776756 A US 3776756A
Authority
US
United States
Prior art keywords
correction
solvent
coating
coat
base
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
US00222538A
Other languages
English (en)
Inventor
V Barouh
R Glenn
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3776756A publication Critical patent/US3776756A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/26—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling
    • B41J29/36—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling for cancelling or correcting errors by overprinting
    • B41J29/373—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling for cancelling or correcting errors by overprinting sheet media bearing an adhesive layer effective to lift off wrongly typed characters

Definitions

  • Erasing may smear or tearthe paper, is time consuming and generally unsatisfactory.
  • correction materials although advocated as the cleanest and quickest method, still often requires striking the typewriter keyseveral times to satisfactorily mask the error before striking the corrected letter.
  • the method isnt whollysatisfactory since it is often necessary to strike the corrected letter several times because the transferred correctionmaterial. has not in the, past been sufficiently receptive to the ink from the typewritter key. The problem then is in masking and receiving. Either the error is masked well but many strike overs are necessary or masking is poor and the correction is blurred.
  • Some bonded letterheads are more resistant to the oils found in a heavy inked ribbon. Therefore the oils remain on the surface of the bond preventing the transferred correction material from satisfactorily masking the typed error. This problem also prevents satisfactory strike-overs of the corrected letter.
  • the correction material to be used is determined by the typewriter ribbon used in the making of the error.
  • the correction material to be used is determined by the typewriter ribbon used in the making of the error.
  • a ribbon of film carrying a conventional carbon formula correction material other than one used for correcting other type ribbons had to be used.
  • a film ribbon having a solvent coating another correction material had to be used to make the correction.
  • different correction materials has to be used.
  • lf a correction was desired on the carbon copy a different correction material had to beused than the one used for originals.
  • An object of the present invention is to provide on paper or like material a new pressure sensitive transfer coating for use as a masking agent for erroneously key struck impressions.
  • the color of the coated material which will be transferred to the original or copy which is to be masked will blend in with the color of the paper thereby making the opaquing unnoticeable and therefore highly desirable.
  • Various shades of white to grey and all other colors and shades are made with the same excellent results.
  • the correction material made in accordance with the concepts of the'present invention includes a base sheet of flexible material, such as a lightweight paper, having one side of any esired color and design, which may also be used for printing instructions as to the manner of using the correction material.
  • the opposite side of the base sheet is preferably completely coated twice with a transfer layer and release layer of a composition suitable for the purpose of the present invention and to be hereinafter described.
  • a further object of the invention is to provide one correction device that can correct typewriter written originals and carbon copies.
  • This one correction device corrects typewritten originals made on manual or electric typewriters, with either fabric ribbons of paper or film ribbons coated or inked with oil, wax or solvent inks.
  • This same correction device corrects carbon copies made with correction wax formulas or solvent formulas coated on paper or film.
  • This one single device corrects all errors on originals and carbon copies simultaneously.
  • the correction material is preferably manufactured in small strips so as to be especially useful for correcting minor errors, such as misspelled words, short sentences, and the like.
  • minor errors such as misspelled words, short sentences, and the like.
  • such articles may also be constructed in any desired shape and size so as to be readily available for correcting entire pages, paragraphs, and the like, should such be deemed desirable and necessary.
  • the carriage of the typewriter is first returned to the origin of the error and the correction material is placed directly upon the face between the typewriter ribbon and the stock in the typewriter.
  • the key of the typewriter is then actuated to strike the same letters as the error appearing on the copy so that the type bar of the typewriter will impinge upon the back side of the article through the ribbon, to transmit sufficient coating material from the layer to completely coat such error to be corrected and mask it.
  • the typewriter carriage is then again returned to the point of origin of the error and the correction material is removed, so that the typewriter may then be actuated to cause the correct type bar to imprint the correct letter directly upon the masked errors ofthe stock to produce a corrected copy sheet.
  • individual sheets or sections may be placed between each carbon copy page and the respective sheet of carbon paper or solvent carbon, so as to simultaneously correct the errors on each of the original and carbon copy sheets at the same time.
  • the same method of adjusting the carriage and obliterating the mistaken copy is followed as described above, and following which the corrected impressions are made after the correction sheets have been removed.
  • the carrier or base sheet is given a coat of binder, at full strength, with solvent, pigment and metallic additive.
  • a formulation of dye, solvent, and release coat material such as Quilon or silicon, and/or stearate, binder, wax, and fill.
  • the solvent breaks the binder while the release coat material works its way under the pigment, binder, and metallic additive forming a shield between the carrier sheet and the pigmented binder formula.
  • heat is applied at 220F. for a time between 1 and 3 seconds. suddenly and unexpectedly, the binder releases from the base sheet just enough to become a transfer material. In its final state and ready for use it is in a state of extra hardness allowing any typeover to be received perfectly.
  • a blue, purple or pink dye is added to the top coat material which cuts the white glare of the pigment so that the transferred material blends better with the stock paper thereby practically leaving no trace of the error or that a correction was made.
  • a carrier sheet for use as a correction device which includes using a formula of pigment, solvent and small amount of binder.
  • This substance will adhere to the carrier sheet and will transfer when struck by a typewriter key perfectly but will need two typeovers to make a good correction because the corrected letter is being types on the titanium pigment and therefore comes grey.
  • the feature here is that the corrected letter is being typed on the binder which is less absorbent and results in a sharp, clear impression as would be when typing on a dry, solid sheet of paper.
  • the present invention differs from these previous ways of coating a carrier sheet by using a base coat formula with a large percentage of binder.
  • the carrier sheet then becomes coated with a thin non-transferable coating.
  • a top coat formula comprised mainly of a solvent which dissolves or breaks down the binder, and talc or clay or stearates which absorb the ink from the ribbon, and a release substance like silicon or Quilon which permits the opaquing substance to release from the carrier sheet and be transferred evenly and completely
  • a now usually effective transferable coating will be attained.
  • the release coat substance works its way between the base coat and carrier sheet. How-- ever, the results are different from prior art letter transfer formulas and unexpected in that the material that is transferred is in the shape of the desired key impression.
  • Ethyl Cellulose CPS Biner 10 parts Titanium Dioxide parts pigments Magnesium Silicate 5 parts Butyl Alcohol 15 parts solvents Ethyl Alcohol 5 parts Metallic material such as powdered aluminum as a densifier 5 parts EXAMPLE No. 2
  • the solvent either normal propanol, toluol or VM & P Naphtha, breaks down the base coat material carrying and allowing the release coat materials to reach a position between the carrier paper and the opaquing formula.
  • reference numeral 10 designates a drum or roll about which elongated substrate strip material 12 is wound, the substrate material preferably being in the form of paper but may be of any other suitable material or a flexible coated material.
  • the substrate material is passed through a series of moisturizing rolls 14 and is then passed through the balance of the apparatus and wound finally on roll 16.
  • the substrate material 12 passes in direction of arrows 18 over a base coating roller 20 which revolves in a drum 22 having a solution in accordance with the formulas for the base coat.
  • the substrate with the base coat thereon is then passed into a first drying chamber 24 which is under a negative or subatmospheric pressure.
  • An initial drying occurs in the chamber 24 which is augmented by heat lamps or other suitable heating means 26, the atmosphere being exhausted from the chamber 24 in the direction of arrow 28;.
  • the substrate is then wound around roll 30 and passed into a first treatment chamber 32. Heated air is directed into the chamber 32 in the direction of arrows 34.
  • This heated air will serve to treat, harden and finish the base coating, after which it passes about a roller 36 and then about roller 38, and over the coating roller 40 which applies the top coat.
  • This top coat includes solvent which, as applied on the base coat, will penetrate the base coat carrying with it the other ingredients of the top coat and insinuating such between the substrate and the base coat. This is enhanced by the initial drying action in the second drying chamber 42 which is under sub-atmospheric pressure. Heat is not applied at this time so as to assure against undue evaporation of the solvent in the top coat, and to provide for adequate insinuation thereof between the base coat and the substrate, while assuring that at least some of the top coat will ry in overlying relationship on the base coat.
  • the elongated sheet material is entrained about roller 44 and then passes into a second treatment chamber 46 in which heated air is impinged on the coated material in the direction of arrows 48 and at atmospheric pressure, and the sheet material is then entrained above rollers 50 and 52 and wound up on the drum or roll 16. Any of the rolls or drums may be powered in any desired manner to insure continuous operation.
  • the base coat formulas contain binder in such proportion that the base coat by itself would be too hard for effective transfer.
  • the top coat insinuates itself for release of the base coat, an effective transfer is realized and much better opaquing and typeover results.
  • a method of manufacturing correction material comprising the steps of applying a transfer layer base coating including a binder, pigment, and solvent on a substrate of strip material, drying said base coating by evaporating said solvent, applying a release layer top coating including a binder, a solvent, and a clay, talc or metallic stearate material over said base coating, allow ing said top coating to penetrate said base coating so that a portion of said top coating insinuates itself between said base coating and said substrate with at least some of said clay, talc or metallic stearate material of said top coating remaining on top of said base coating, and then drying said top coating by evaporating the solvent thereof.
  • the binder of said base coating ethyl cellulose or nitro cellulose
  • the pigment of said base coating is titanium dioxide, magnesium silicate, or calcium carbonate
  • the solvents of said base coating are butyl alcohol, ethyl alcohol, toluol, propanol, or ethyl acetate.

Landscapes

  • Duplication Or Marking (AREA)
  • Printing Methods (AREA)
US00222538A 1972-02-01 1972-02-01 Correction material and method for the manufacture thereof Expired - Lifetime US3776756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22253872A 1972-02-01 1972-02-01

Publications (1)

Publication Number Publication Date
US3776756A true US3776756A (en) 1973-12-04

Family

ID=22832623

Family Applications (1)

Application Number Title Priority Date Filing Date
US00222538A Expired - Lifetime US3776756A (en) 1972-02-01 1972-02-01 Correction material and method for the manufacture thereof

Country Status (3)

Country Link
US (1) US3776756A (cg-RX-API-DMAC10.html)
DE (1) DE2304997A1 (cg-RX-API-DMAC10.html)
FR (1) FR2170742A5 (cg-RX-API-DMAC10.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998314A (en) * 1975-11-13 1976-12-21 Victor Barouh Impact typewriter correction tape and method of manufacture
DE3639487A1 (de) * 1986-11-18 1988-05-19 Pagendarm Beschichtungstechnik Verfahren und vorrichtung zum auftragen eines beschichtungsmittels auf ein substrat
DE4129413A1 (de) * 1991-09-04 1993-03-11 Tipp Ex Gmbh & Co Kg Mehrschichtiges korrekturmaterial, verfahren zu der herstellung desselben und verwendung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61175033A (ja) * 1985-01-31 1986-08-06 聖城　健嘉 コピ−修正用テ−プ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998314A (en) * 1975-11-13 1976-12-21 Victor Barouh Impact typewriter correction tape and method of manufacture
DE3639487A1 (de) * 1986-11-18 1988-05-19 Pagendarm Beschichtungstechnik Verfahren und vorrichtung zum auftragen eines beschichtungsmittels auf ein substrat
DE4129413A1 (de) * 1991-09-04 1993-03-11 Tipp Ex Gmbh & Co Kg Mehrschichtiges korrekturmaterial, verfahren zu der herstellung desselben und verwendung

Also Published As

Publication number Publication date
FR2170742A5 (cg-RX-API-DMAC10.html) 1973-09-14
DE2304997A1 (de) 1973-08-09

Similar Documents

Publication Publication Date Title
US3649357A (en) Production of colored images on paper bases
US3363557A (en) Heat transfer of indicia containing sublimable coloring agent
US2188590A (en) Nonsmudging transfer sheet
US2486259A (en) Method for printing on thermoplastic sheetlike material
US4321286A (en) Process for producing transfer ribbons
US1925235A (en) Carbon paper
US2562782A (en) Water-repellent ink transfer surface
US3895603A (en) Apparatus for manufacturing correction material
US3788863A (en) Aqueous ink for development of concealed images
US3776756A (en) Correction material and method for the manufacture thereof
US2154219A (en) Lithograph plate
US1950982A (en) Manifolding sheet
US3226134A (en) Sets of reproduction transfer sheets
US20160221377A1 (en) Thermal transfer paper for printing and digital printing
US2611313A (en) Duplicating method
US4299644A (en) Heat transfer decal
US2008763A (en) Transfer
US3294571A (en) Sheets of coated paper
US1732187A (en) Ink-transfer member and method of making the same
GB1452722A (en) Recording method
US3123516A (en) Coated aluminum and process
US2321140A (en) Method and apparatus for printing
US2558048A (en) Transfer sheet
US1990106A (en) Method of making duplicating forms
US2228280A (en) Method of shading surfaces