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GB892984A - Improved dampening roll covers for planographic printing presses - Google Patents

Improved dampening roll covers for planographic printing presses

Info

Publication number
GB892984A
GB892984A GB2193658A GB2193658A GB892984A GB 892984 A GB892984 A GB 892984A GB 2193658 A GB2193658 A GB 2193658A GB 2193658 A GB2193658 A GB 2193658A GB 892984 A GB892984 A GB 892984A
Authority
GB
United Kingdom
Prior art keywords
sleeve
sheet
roller
fibres
elastomer
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
GB2193658A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB892984A publication Critical patent/GB892984A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/22—Optical, image processing or photographic arrangements associated with the tube
    • H01J37/224—Luminescent screens or photographic plates for imaging; Apparatus specially adapted therefor, e. g. cameras, TV-cameras, photographic equipment or exposure control; Optical subsystems specially adapted therefor, e. g. microscopes for observing image on luminescent screen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/04—Shells for rollers of printing machines for damping rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/14—Location or type of the layers in shells for rollers of printing machines characterised by macromolecular organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

892,984. Rollers; impregnated, coated and laminated paper. MINNESOTA MINING & MANUFACTURING CO. July 8, 1958 [July 8, 1957], No. 21936/58. Classes 42 (2) and 96. [Also in Groups XVI and XXIV] A removable sleeve for covering a dampening roll in a lithographic printing press comprises a non-stretchable tubular body having a surface layer comprising a combination of waterreceptive fibres in a cohesive mat and a waterreceptive elastomer dispersed in the mat. As shown, the sleeve comprises a tubular inner layer 14 formed of a spirally wrapped sheet to which is laminated an outer reversely spirally wrapped sheet 12 by means of an adhesive layer 16. The sheet 12 may be of kraft paper impregnated with from 10 to 75% by weight of an elastomer such as neoprene or a copolymer of butadiene and acrylonitrile. Natural or synthetic rubber, fluorinated acrylate rubbers or plasticized 1,2-epoxides may also be used as the elastomer and the fibres may be any natural or synthetic, woven, unwoven or randomly disposed, water-absorbent fibres, e.g. natural cellulose fibres or certain of the nylons. The layer 14 may be of similar material to the sheet 12, but may also be of paper stock, reticulated metal, plastic such as polytetrafluoroethylene or polyethylene, or other material which provides a stiff, shape-retaining core. The adhesive layer 16 is formed by coating the adjacent faces of the layers 14, 12 with a synthetic rubber-phenolic resin based, waterproof, non-migrating, highstrength adhesive, which is dried to a non-tacky state and activated by a solvent such as ethyl acetate when the faces are brought into contact. The sleeve is formed on a mandrel and has an internal, diameter slightly smaller than the external diameter of the roller 18 which it is to cover. The roller has a resilient body 22 which is contracted by subjecting it to a low temperature, the sleeve then being slipped over the roller and being frictionally held thereon when the body 22 expands on its return to room temperature. In modifications the sleeve may consist of three or more laminµ which may have seams parallel to the axis of the roller and the surfacing sheet may be parchmentised on one or both sides by immersion in a 70% sulphuric acid solution.
GB2193658A 1957-07-08 1958-07-08 Improved dampening roll covers for planographic printing presses Expired GB892984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67051157A 1957-07-08 1957-07-08

Publications (1)

Publication Number Publication Date
GB892984A true GB892984A (en) 1962-04-04

Family

ID=24690692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2193658A Expired GB892984A (en) 1957-07-08 1958-07-08 Improved dampening roll covers for planographic printing presses

Country Status (6)

Country Link
BE (1) BE569214A (en)
CH (1) CH362424A (en)
DE (1) DE1421084A1 (en)
FR (1) FR1207722A (en)
GB (1) GB892984A (en)
NL (2) NL106269C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599306A (en) * 1969-06-13 1971-08-17 Beloit Corp Roll composition
US3635158A (en) * 1969-10-06 1972-01-18 William D Budinger Roller for printing press
US3652376A (en) * 1969-07-11 1972-03-28 Grace W R & Co Multi-ply press packing for the impression member in a letter press
US3945723A (en) * 1973-09-07 1976-03-23 Xerox Corporation Resilient roller
DE102007021158A1 (en) * 2007-05-05 2008-11-06 Manroland Ag Printing press cylinder

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126142A1 (en) * 1991-08-08 1993-02-11 Roland Man Druckmasch DAMPING ROLLER
DE4130138C2 (en) * 1991-09-11 1996-11-21 Klaus Dipl Ing Wittel Water-bearing roller for a dampening unit of an offset printing machine
DE10121557A1 (en) * 2001-05-03 2002-11-14 Koenig & Bauer Ag Blanket rollers, for a rotary printing press, have identical dimensions to be fitted with rubber blankets of a different thickness to give the required outer diameter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599306A (en) * 1969-06-13 1971-08-17 Beloit Corp Roll composition
US3652376A (en) * 1969-07-11 1972-03-28 Grace W R & Co Multi-ply press packing for the impression member in a letter press
US3635158A (en) * 1969-10-06 1972-01-18 William D Budinger Roller for printing press
US3945723A (en) * 1973-09-07 1976-03-23 Xerox Corporation Resilient roller
DE102007021158A1 (en) * 2007-05-05 2008-11-06 Manroland Ag Printing press cylinder

Also Published As

Publication number Publication date
BE569214A (en)
NL229411A (en)
FR1207722A (en) 1960-02-18
NL106269C (en)
CH362424A (en) 1962-06-15
DE1421084A1 (en) 1968-10-03

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