US2603180A - Raised printing apparatus - Google Patents

Raised printing apparatus Download PDF

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Publication number
US2603180A
US2603180A US649819A US64981946A US2603180A US 2603180 A US2603180 A US 2603180A US 649819 A US649819 A US 649819A US 64981946 A US64981946 A US 64981946A US 2603180 A US2603180 A US 2603180A
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Prior art keywords
web
impression
means
printing
powdered compound
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Expired - Lifetime
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US649819A
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Richard F Berndt
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Virkotype Corp
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Virkotype Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/06Powdering devices, e.g. for preventing set-off
    • B41F23/065Powdering devices, e.g. for preventing set-off for thermography

Description

y 15, 1952 R. F. BERNDT I 2,603,180

RAISED PRINTING APPARATUS Filed Feb. 25, 1946 I 4 R v WM R Richard EBerndi may Patented July 15, 1 952 Richard "F, Bernie, Racine, Wis., assignor to Virk'otype Corporation, -a corporation 'of Vir- Application Febr uary 25, 1946, seamin 649,519 s Claims. (cram-4e) 1 I This invention pertains broadly'to raised print 'ing in which a wet'impression is first made upon a sheet of material to serve as a bond for "a powdered compound subsequently applied to'the sheet to provide raised printing simulating embossin'g. M

Heretofore the above process has been applied to individual sheets of paper, and requires'a considerable period of time in the drying process, which necessarily restricts production.

The present invention has primarily for its object to increase p-rod'uctionin raised printing by the provision of a novel apparatus designed to print'a web of paper traveling at'a relatively high rate of speed as compared to the printing of individual sheets, and effectively dry the same to permit immediate rewinding. I

Incidental to the foregoing, a more specific object of the invention is to providean apparatus for applying heat to the printed web to melt the powdered materialretained by the Wet impression "on the web, and thereafterjsubjecting the web 'to cooling means for congealing the fused material.

A further object of the invention is to pass 'the printed web over a heated cylinder to effect melting of the powdered compound and an intimate bondwith the ink'or wet impression.

In combination with the foregoing, another object is to apply exterior heat to the printed surface of the web to supplement the heated cylinder in instances where a maximum amount of heat is required to effect the desired results.

Another object is to provide a chilled cylinder over which the web is trained to congeal both thewet'impression and melted powdered compound after leaving the heating apparatus.

A still further object is to provide auxiliary means when required to direct a forced blast of air against either one or both surfaces of the web after leaving the chilled cylinder.

In addition to the foregoing, other objects will appear'as the descriptionproceeds, and while the accompanying drawing illustrates one complete example of the physical embodiment of themvention, constructed in accordance with the best mode so far devised, it isto be understood that changes in the preciseembodiment of the invention are contemplated within the scope of the appended claims.

In the drawing:

The sole figure is' a schematic view of an apparatus applicable to a conventional raised printing press, and incorporating principles of the present invention.

Referring nowmore particularly'to the accompanying drawing, the apparatus disclosedis designed for raised printing on a web of paper'desi nated as P. The web P is first passed through a printing or wet impression cylinder l co-operating with a platen cylinder 2 to imprint ink or solvent upon the web.

'From the wet impression mechanism, which,

is conventional, the web I? travels below a powder dispensing'and cleaning device 3. 'In'the present illustration the dispensing "device 3 includes a distributor 4 positioned-transversely of the web, to dust or deliver'measured quantities of powdered compound upon the top or printed surface of the web. To remove surpl s powder not adhered to the ink, a suction headl'ris'p'ositioned .over and transversely of the web, behind the distributor, the head being connected with a centrifugal separator '6, mounted on the top'of the distributor l, by a nozzle 1. A'suction exhaust line 8 serves to draw on air-floating dust from the separator S, and permit return of the heavier particles of powdered compound to the dismelt the powdered dusting compound adhering to the wet impression, to efiect a complete bond between the two. In the event that the dusting material is of such character as to require a high melting temperature, or' should it be desired *to operate themachine at a high rate of speed-"to increase its capacity, auxiliary heat maybe'applied to the printed surface of the sheet-'as it travels over the heated cylinder 16, by eithera hot air, electrical, or other equivalent type "of heater ll, surroundinga portion ofthe cylinder I0.

I TheWeb'P, after leaving thecylinder*lfl,-'is trained over a chilled cyldnier l2, the'eifeet 15f which is to congeal boththe 'wet'impressio'n and powdered compound. Under ordinary circumstances, utilizing a fast drying ink and a powdered compound that requires-a comparatively low degree of heat to melt, the roller [2 is sufiicient to both congeal and dry the printing.

On the other hand, should it be necessary to subject the web to extreme heat, and it is found that the chilled cylinder 12 is insufficient to effeet the desired congealing and drying of the ID and the chilled cylinder 12, as indicated in' dotted lines on the drawing.

Also in place of an air blast, the web P, after leaving the chilled cylinder 12, may be trained over a circuitous route on guide rollers, and subjected to either normal atmosphere or conditioned air. 1

From the foregoing explanation considered'in connection with the accompanying drawing, it will be apparent that an extremely simple and compact apparatus has been provided for raised printing on a web of paper, and which insures maximum capacity in that it eliminates the presest tedious and slow process required in printing individual sheets.

While the present apparatus has been illustrated and described in connection with conventional mechanisms for printing and dusting the web, it is to be understood that other devices may be embodied, inasmuch as the salient feature of the invention resides in the treatment of the web subsequent to printing and dusting.

' Specifically, the powder dispensing and removal device 3 is' novel and is included in a subsequent application, Serial No. 742,759. filed April 19, 1947, entitled Powder Separator and Dispenser, now Patent No. 2,591,043.

I claim:

1. An apparatus for raised printing on a traveling web of material comprising, means for printing a wet impression upon the web, a mechanism for distributing a powdered compound upon the printed surface of the web, suction means for removing excess powder not adhered to the printed impression, means on the opposite side of the web from the suction means for maintaining the web adjacent the suction means under tension, means for applying heat to the web to melt the powdered compound and provide an intimate bond between the powder and wet impression, and means for chilling the web to congeal the powdered compound.

2. An apparatus for raised printing ona traveling web of material comprising, meansfor printing a wet impression upon the web, a mechanism for distributing a powdered compound upon the printed surface of the web and removing excess powder not adhered to the printed impression, means for applying heat to the web to melt the powdered compound and provide an intimate bond between the powder and wet impression comprising a heated cylinder over which and in contact with which the web passes after leaving the powder distributing mechanism, a chilled cylinder over which and in contact with which the web travels after leaving the heated cylinder to congeal the powdered compound, said web passing over said cylinders with its surface opposite that carrying the printed impression contacting the surface of said cylinders, and means for directing an air blast against the web for additional cooling and drying.

3. An apparatus for raised printing on a traveling web of material comprising, means for printing a wet impression upon the web, a mechanism for distributing a powdered compound upon the printed surface of the web and removing excess powder not adhered to the printed impression, means for applying heat to the web to melt the powdered compound and provide an intimate bond between the powder and wet impression comprising a heated cylinder over which and in contact with which the web passes after leavingthe powder distributing mechanism, said web passing over the heated cylinder with its surface opposite that carrying the printed impression contacting the surface of said cylinder, and means for chilling the web to cool the powdered compound after the web leaves the heated cylinder.

4; An apparatus for raised printing on a traveling web of mamrial comprising, means for printing a wet impression upon the web, a mechanism for distributing a powdered compound upon the printed surface of the web and removing excess powder not adhered to the printed impression, means for applying heat to the web to melt-the powdered compound and provide an intimate bond between the powder and wet impression comprising a heated cylinder over which and in contact with which the web passes after leaving the powder distributing mechanism, and a chilled cylinder over which and in contact with which the web travels after leaving the heated cylinder to congeal the powdered compound, said web passing over both of said cylinders with its surface opposite that carrying the printed impression contacting the surfaces of said cylinders.

5. An apparatus for raised printing on a traveling web of material comprising, means for printing a wet impression upon the web, a mechanism for distributing a powdered compound upon the printed surface of the web and removing excess powder not adhered to the printed impression, means for applying heat to the web to melt the powdered compound and provide an intimate bond between the powder and wet impression comprising a heated cylinder over which and in contact with which the web passes after leaving the powder distributing mechanism, and means for chilling the web to cool the powdered compound after the web leaves the heated cylinder, said web being supported solely upon its surface opposite that carrying the printed impression from the place where it leaves the printing means to the place where it leaves the chilling means.

RICHARD F. BERNDT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,149,455 Lipsius Aug. 10, 1915 1,283,155 Goldhamer Oct. 29, 1918 1,739,492 Berndt et al. Dec. 17, 1929 1,772,844 Ross Aug. 12, 1930 2,277,426 Wolf et al Mar. 24, 1942

US649819A 1946-02-25 1946-02-25 Raised printing apparatus Expired - Lifetime US2603180A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414913A (en) * 1980-07-18 1983-11-15 Sarda Jean Lucien Thermo-engraving machine for printing in relief
US4991539A (en) * 1986-07-28 1991-02-12 Sarda Jean Lucien Microwave unit for thermographic printing
EP1098717A1 (en) * 1998-05-18 2001-05-16 Faust Thermographic Supply, Inc. Apparatus and method for thermographic printing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1149455A (en) * 1914-09-10 1915-08-10 Samuel Lipsius Printing apparatus.
US1283155A (en) * 1912-06-15 1918-10-29 Emboso Sales Company Apparatus for producing relief-printing.
US1739492A (en) * 1925-01-08 1929-12-17 Automatic Printing Devices Co Machine for producing raised printing
US1772844A (en) * 1925-11-14 1930-08-12 Bayfield Sales And Equipment C Machine for producing relief printing
US2277426A (en) * 1940-09-21 1942-03-24 B C B Ind Apparatus for processing sheet material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1283155A (en) * 1912-06-15 1918-10-29 Emboso Sales Company Apparatus for producing relief-printing.
US1149455A (en) * 1914-09-10 1915-08-10 Samuel Lipsius Printing apparatus.
US1739492A (en) * 1925-01-08 1929-12-17 Automatic Printing Devices Co Machine for producing raised printing
US1772844A (en) * 1925-11-14 1930-08-12 Bayfield Sales And Equipment C Machine for producing relief printing
US2277426A (en) * 1940-09-21 1942-03-24 B C B Ind Apparatus for processing sheet material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414913A (en) * 1980-07-18 1983-11-15 Sarda Jean Lucien Thermo-engraving machine for printing in relief
US4991539A (en) * 1986-07-28 1991-02-12 Sarda Jean Lucien Microwave unit for thermographic printing
EP1098717A1 (en) * 1998-05-18 2001-05-16 Faust Thermographic Supply, Inc. Apparatus and method for thermographic printing
EP1098717A4 (en) * 1998-05-18 2006-03-29 Faust Thermographic Supply Inc Apparatus and method for thermographic printing

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