US1831624A - Method of preventing offset in printing - Google Patents

Method of preventing offset in printing Download PDF

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Publication number
US1831624A
US1831624A US382047A US38204729A US1831624A US 1831624 A US1831624 A US 1831624A US 382047 A US382047 A US 382047A US 38204729 A US38204729 A US 38204729A US 1831624 A US1831624 A US 1831624A
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United States
Prior art keywords
printing
paper
roller
moistened
preventing
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Expired - Lifetime
Application number
US382047A
Inventor
Edward C Francoise
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.)
Kalamazoo Vegetable Parchment Co
Original Assignee
Kalamazoo Vegetable Parchment 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.)
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Publication date
Application filed by Kalamazoo Vegetable Parchment Co filed Critical Kalamazoo Vegetable Parchment Co
Priority to US382047A priority Critical patent/US1831624A/en
Application granted granted Critical
Publication of US1831624A publication Critical patent/US1831624A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/06—Powdering devices, e.g. for preventing set-off

Definitions

  • the main objects of my invention are:
  • 1 represents a roll of paper to be printed, 52 the web of paper and 3 a printing machine.
  • I support a heated roller 4 so that the unprinted side of the web contacts with this roller.
  • this heating roller I mount a chilling and moistening roller 5 positioned so that the web of paper may be brought into contact therewith romptly after leavin the heating roller.
  • he roller 5 is cooled by means of a suitable refrigerant to such an extent that frost is formed on thesurface of the roller.
  • frost is formed on thesurface of the roller.
  • the web of paper After leaving the roller 5 the web of paper is wound or rolled up, the roll being indicated at 6, thereby bringing the moistened side of the paper in opposed relation to the printed side as the paper is wound up.
  • the moistened surface constitutes a resistant to the ink thereby effectively preventing offsetting.
  • the apparatus is simple and may be readily installed with printing machines as commonly employed. I have not attempted to The roller illustrate or describe various embodiments or additions of my improvements as it is believed that thisdisclosure will enable those skilled in the art to embody or adapt the same as may be desired.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Printing Methods (AREA)

Description

Nov. 10, 1931.
E'. C. FRANCOISE METHOD OF PREVENTING OFFSET IN PRINTING Filed July 29, 1929 INVENTOR a? [70/760/3? Patented Nov. 10, 1 931 UNITED STATES PATENT OFFICE EDWARD c. rrmn'corsa, or 'xALAmAzoo, MICHIGAN, ASSIGNOR 'ro mmmzoo VEGETABLE PARCHMENT COMPANY, or IKALAMAZOO, MICHIGAN METHOD OF PREVENTING OFFSET IN PRINTING Application filed July 29, 1929. Serial No. 382,047.
The main objects of my invention are:
First, to provide an improved method of preventing offset in printing which may be economically practiced with simple and compact apparatus.
Second, to provide an improved method of preventing ofisetting in printing which is eflicient and greatly increases production.
Objects pertaining to details and economies of my improvements will definitely appear from the detailed description to follow. The invention is defined in the claims.
The manner of carrying out my improved method is illustrated in the accompanying drawing in which the figure is a diagram matic view of an apparatus by means of which my improved method of preventing offsetting may be practiced. 7
Referring to the drawing, 1 represents a roll of paper to be printed, 52 the web of paper and 3 a printing machine. At the rear of the printing cylinders I support a heated roller 4 so that the unprinted side of the web contacts with this roller. is sufiicientl heated to heat the paper to a substantial egree and this heat increases the drying or setting action of the ink.
At the rear of this heating roller I mount a chilling and moistening roller 5 positioned so that the web of paper may be brought into contact therewith romptly after leavin the heating roller. he roller 5 is cooled by means of a suitable refrigerant to such an extent that frost is formed on thesurface of the roller. As the web of paper passes into contact with the rotating roller the paper is cooled and, owing to the melting of the frost, the paper is moistened.-
After leaving the roller 5 the web of paper is wound or rolled up, the roll being indicated at 6, thereby bringing the moistened side of the paper in opposed relation to the printed side as the paper is wound up. Inasmuch as printing mks commonly employ an Oll base or vehicle the moistened surface constitutes a resistant to the ink thereby effectively preventing offsetting.
The apparatus is simple and may be readily installed with printing machines as commonly employed. I have not attempted to The roller illustrate or describe various embodiments or additions of my improvements as it is believed that thisdisclosure will enable those skilled in the art to embody or adapt the same as may be desired.
Having thus described my invention what I claim as new and desire to secure by Letters Patent is:
1. The method of preventing offsetting consisting ofprinting, passing the printed paper over a heated roller with the unprinted s1de in contact with the roller, passing while still heated over a roller cooled by means re sulting in frost collecting on the surface of the roller whereby the paper is cooled and moistened, and winding into a roll while still moistened.
' 2. The method of preventing offsetting consisting of printing, subjecting to a heating means and while still heated passing the unprinted side of the web over an element cooled by means resulting in the collection of.
frost on the element so that the paper is moistened by such contact, and winding into a roll while still moistened.
3. The method of reventing offsetting consisting of printing, bringing the unprinted side of the paper into contact with a heating element and while still heated bringing it into contact with an element cooled by means resulting in frost collecting on the surface of the elementwhereby the paper is cooled and moistened, and winding while still moistened.
4. The method of preventing ofisetting hand.
EDWARD C. FRANCOISE.
US382047A 1929-07-29 1929-07-29 Method of preventing offset in printing Expired - Lifetime US1831624A (en)

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US382047A US1831624A (en) 1929-07-29 1929-07-29 Method of preventing offset in printing

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US382047A US1831624A (en) 1929-07-29 1929-07-29 Method of preventing offset in printing

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US1831624A true US1831624A (en) 1931-11-10

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645179A (en) * 1950-02-18 1953-07-14 Spiro Murray Printing machine
US2683273A (en) * 1950-12-27 1954-07-13 United Shoe Machinery Corp Method and apparatus for wrapping and marking shank stiffeners
US2877140A (en) * 1953-10-12 1959-03-10 Waxide Paper Company Method for cooling and setting wax coatings on paper
US2971460A (en) * 1959-03-30 1961-02-14 George H Shindle Method and apparatus for automatic temperature control of rotary printing press ink rollers
US5429051A (en) * 1992-09-18 1995-07-04 Heidelberger Druckmaschinen Ag Printing-unit assembly with smear-preventing device of a web-fed printing press and method of operation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645179A (en) * 1950-02-18 1953-07-14 Spiro Murray Printing machine
US2683273A (en) * 1950-12-27 1954-07-13 United Shoe Machinery Corp Method and apparatus for wrapping and marking shank stiffeners
US2877140A (en) * 1953-10-12 1959-03-10 Waxide Paper Company Method for cooling and setting wax coatings on paper
US2971460A (en) * 1959-03-30 1961-02-14 George H Shindle Method and apparatus for automatic temperature control of rotary printing press ink rollers
US5429051A (en) * 1992-09-18 1995-07-04 Heidelberger Druckmaschinen Ag Printing-unit assembly with smear-preventing device of a web-fed printing press and method of operation

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