EP0741047B1 - Feuchtwalzen für Offsetdruckmaschinen und Verfahren zur Herstellung derselben - Google Patents

Feuchtwalzen für Offsetdruckmaschinen und Verfahren zur Herstellung derselben Download PDF

Info

Publication number
EP0741047B1
EP0741047B1 EP96103527A EP96103527A EP0741047B1 EP 0741047 B1 EP0741047 B1 EP 0741047B1 EP 96103527 A EP96103527 A EP 96103527A EP 96103527 A EP96103527 A EP 96103527A EP 0741047 B1 EP0741047 B1 EP 0741047B1
Authority
EP
European Patent Office
Prior art keywords
elastomeric material
rollers
offset printing
hydrophilic groups
hydrophilic
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
EP96103527A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0741047A1 (de
Inventor
Johann Dr. Weinert
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.)
Felix Bottcher & Co GmbH
Felix Boettcher GmbH and Co KG
Original Assignee
Felix Bottcher & Co GmbH
Felix Boettcher GmbH and Co KG
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 Felix Bottcher & Co GmbH, Felix Boettcher GmbH and Co KG filed Critical Felix Bottcher & Co GmbH
Publication of EP0741047A1 publication Critical patent/EP0741047A1/de
Application granted granted Critical
Publication of EP0741047B1 publication Critical patent/EP0741047B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the present invention relates to dampening rollers for Offset printing machines with a sandable surface coating Made of elastomeric material, which when printing without additive of isopropanol can be used, and processes for Making the same.
  • DE-A-24 33 748 describes roll coatings with a Flocking.
  • DE-A-43 26 856 describes the use of the usual Elastomers that are used by all roll coaters.
  • the task of reducing the amount of alcohol added to the dampening solution or to be able to do without it entirely is intended to solve this be that rollers are used that have a coating as elastomeric material with a surface roughness Rz between 6 and 20 microns, preferably 8 to 12 microns.
  • Another Attempted solution consists of the elastomeric material short cut fibers to mix.
  • Roll coatings that have a hydrophilic Contain plasticizers and / or hydrophilic fibers for example, described in US-A-3,152,387.
  • the invention has therefore set itself the task of grindable elastomer-coated dampening rollers as immersion (dosing) and Develop application rollers in combination with the usual Chrome rollers as well as ceramic rollers without the addition of isopropyl alcohol used in both sheetfed and web offset and which can be used when printing without adding Isopropanol can be used.
  • hydrophilic groups are Carboxyl, carboxylate, amido, sulfonic acid and / or sulfonate groups in question. They come as an elastomeric material usual materials in question, in particular NBR, HNBR, CR, XNBR, ECO, EPDM, CSM, NR, silicone rubber or mixtures thereof.
  • the dampening rollers are manufactured in that they are coated with an elastomeric material that polymerized Has hydrophilic groups, preferably the hydrophilic groups listed above, the elastomeric Material can also consist of the above groups.
  • elastomeric materials with hydrophilic groups be made by double the usual unsaturated monomers with unsaturated monomers with hydrophilic Groups are copolymerized.
  • One more way consists in certain amounts of di- and in polyurethane To admit polyols that have the hydrophilic groups. It is also possible to minimize the rubber recipes Mix quantities of highly hydrophilic polymers and thus them distribute homogeneously in the mass of the elastomer.
  • the sulfonic acid groups come as hydrophilic groups Sulfonate groups in question, since there are commercially available monomers, which are copolymerized accordingly or by polyaddition into the Polymers can be incorporated.
  • Dampening rollers can be further improved by the fact that ion exchange resins such as styrene-divinylbenzene resin with sulfonic acid groups to be mixed in. Further improvements can caused by the addition of polar fillers. Suitable is, for example, amorphous quartz powder.
  • the surface roughness of the rolls is usually Rz 3 to 20 microns, preferably 3 to 12 microns.
  • rollers according to the invention can be used either as metering or Dip rollers as well as application rollers for direct and indirect Plate dampening can be used. It did shown that depending on the dampening construction by graded Hydrophilize the wet ink balance between the application and immersion rollers on the plate and thus the printing result is positive can be influenced.
  • rollers according to the invention are not only characterized by their water-friendly property, but also by a certain color-repelling effect, resulting in a color splitting into Dampening water is avoided. Above all, the effect of the invention Rolls even dampening solution transport Plate. Tests have shown that with the help of the invention Rolling is possible without printing alcohol, especially if the chrome roller previously used for Application comes. A conversion of the dampening systems is therefore not necessary.
  • elastomeric material with polymerized hydrophilic Groups are, for example, the vulcanizable Polymers or copolymers of double unsaturated Monomers, these mixtures, for example, 5% acrylamidotertiarybutylsulfonic acid (ATBS) is admixed. These mixtures are then peroxidically polymerized in the usual way and usable elastomers processed.
  • ATBS acrylamidotertiarybutylsulfonic acid
  • the invention thus relates on the one hand to the dampening rollers for offset printing machines according to claims 1 to 3 as well Process for the production of rolls according to claims 4 to 6. Finally, the invention relates to the use of elastomeric material with copolymerized hydrophilic groups for coating dampening rollers for offset printing.
  • NBR acrylonitrile-butadiene copolymer

Landscapes

  • Printing Plates And Materials Therefor (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Rotary Presses (AREA)
EP96103527A 1995-05-04 1996-03-07 Feuchtwalzen für Offsetdruckmaschinen und Verfahren zur Herstellung derselben Expired - Lifetime EP0741047B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19516051 1995-05-04
DE19516051A DE19516051C2 (de) 1995-05-04 1995-05-04 Walzen, insbesondere Feuchtwalzen für Offsetdruckmaschinen und Verfahren zur Herstellung derselben

Publications (2)

Publication Number Publication Date
EP0741047A1 EP0741047A1 (de) 1996-11-06
EP0741047B1 true EP0741047B1 (de) 2000-06-07

Family

ID=7760857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103527A Expired - Lifetime EP0741047B1 (de) 1995-05-04 1996-03-07 Feuchtwalzen für Offsetdruckmaschinen und Verfahren zur Herstellung derselben

Country Status (6)

Country Link
EP (1) EP0741047B1 (da)
AT (1) ATE193683T1 (da)
DE (2) DE19516051C2 (da)
DK (1) DK0741047T3 (da)
ES (1) ES2148609T3 (da)
PT (1) PT741047E (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10002683C2 (de) * 2000-01-24 2003-11-06 Paul Sauer Gmbh & Co Walzenfab Walze mit farbabweisendem Bezug
DE10209296A1 (de) 2002-03-01 2003-09-18 Koenig & Bauer Ag Feuchtwalze für Feuchtwerke in Druckmaschinen
CN102775684B (zh) * 2012-06-12 2016-01-20 安徽华海特种电缆集团有限公司 一种环保型智能火灾报警电缆料及其制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE644341C (de) * 1933-11-08 1937-04-29 Vulcan Proofing Company Oberdecke fuer Gegendruckzylinderaufzuege
NL282033A (da) * 1961-10-16
DE2620381A1 (de) * 1976-05-08 1977-11-17 Weitmann & Konrad Walze zum uebertragen waessriger feuchtmittel
DE4007141C1 (da) * 1990-03-07 1991-04-11 Felix Boettcher Gmbh & Co, 5000 Koeln, De
DE4326856A1 (de) * 1993-08-11 1995-02-16 Westland Gummiwerke Gmbh & Co Walze zur Verwendung in Feuchtwerken von Offset-Druckmaschinen bzw. Offset-Druckverfahren

Also Published As

Publication number Publication date
DE19516051A1 (de) 1996-11-07
DE59605383D1 (de) 2000-07-13
PT741047E (pt) 2000-09-29
DK0741047T3 (da) 2000-10-23
ES2148609T3 (es) 2000-10-16
ATE193683T1 (de) 2000-06-15
DE19516051C2 (de) 1999-08-05
EP0741047A1 (de) 1996-11-06

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