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
  • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
  • B41N10/02—Blanket structure
  • B41N10/04—Blanket structure multi-layer
• • 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
  • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
  • B41N2210/04—Intermediate 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
  • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
  • B41N2210/06—Backcoats; Back layers; Bottom 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
  • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
  • B41N2210/10—Location or type of the layers in multi-layer blankets or like coverings characterised by inorganic compounds, e.g. pigments
• • 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
  • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
  • B41N2210/14—Location or type of the layers in multi-layer blankets or like coverings characterised by macromolecular organic compounds
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
  • Y10T156/10—Methods of surface bonding and/or assembly therefor

Definitions

• the invention relates to a Metall Wegendrucktuch which contains the following layers:
• a cover layer which is connected via an adhesive layer with the side facing away from the printing layer surface of the metal foil.
• the invention further relates to a method for producing such a metal backing blanket.
• a blanket of the above type is known for example from DE 21 2008 00 045 Ul.
• the cover layer consists of a plastic film with a hot melt adhesive with the
• Metal foil is glued.
• the blanket is clamped for printing on a printing cylinder by means of projections of the metal foil in a known manner.
• the print layer of the blanket is cleaned with a
• Washed off detergent In this case it can happen that detergent passes between the metal foil and the pressure roller. The detergent is then partially pressed between the metal foil and the plastic film and distributed by the rotation of the pressure roller in a later printing in the circumferential direction of the blanket. It can then happen that the hot-melt adhesive dissolves locally and the plastic film peels away from the metal foil in these areas. This leads to a swelling of the blanket and to a deterioration of the printed image in these areas.
• the invention has for its object to provide a metal back pressure, in which the risk of dissolution of the adhesive layer is low.
• the object is achieved according to the characterizing features of claim 1, characterized in that the cover layer consists of a nonwoven fabric.
• the advantage of the invention is the fact that the liquid detergent due to the formation of the
• the cover layer can distribute it evenly between the metal foil and the impression cylinder.
• the detergent is absorbed by the nonwoven fabric, since the nonwoven fabric is open-pored.
• the detergent can not dissolve the adhesive layer.
• due to the detergent local pressure increases between the metal foil and the pressure roller can not occur, which lead to detachment of the cover layer from the metal foil.
• Another advantage of the invention is the fact that a cover layer in the form of a nonwoven fabric has a low bending stiffness and thus the blanket can be easily mounted on the printing cylinder.
• Adhesive layer in some areas of the top layer which due to the formation of the
• Cover layer as a nonwoven fabric is readily possible.
• the advantage of the development is the fact that the cover layer due to the penetration through the
• Adhesive layer in addition to the adhesive connection is positively connected to the adhesive layer. As a result, a particularly durable connection of the cover layer to the metal foil of the blanket is ensured.
• Adhesive layer 50% to 90% of the thickness of the cover layer 50% to 90% of the thickness of the cover layer.
• a further development is the fact that with such a penetration a particularly secure connection of the cover layer to the metal foil is achieved.
• Another advantage of the development is the fact that the cover layer of nonwoven fabric in the region of penetration has no or only a small compressibility, which has an increased stability of the blanket in this area. Nevertheless, the Cover layer of the nonwoven continue to absorb moisture, since the nonwoven fabric is not completely penetrated by the adhesive layer.
• any nonwoven fabric e.g. Paper to be chosen.
• the cover layer is preferably a plastic nonwoven fabric.
• Thickness change of the blanket with moisture absorption comes. Another advantage of the development is the fact that a plastic nonwoven fabric has a high long-term durability.
• any adhesive can be selected according to the invention, which is suitable for bonding the cover layer to the metal foil. Both physically binding and chemically binding adhesives are suitable for this purpose. According to one embodiment of the invention according to claim 5, the Kl ebstoffschi cht, however
• the cover layer of nonwoven fabric can be particularly easily and firmly connected to the metal foil. This is particularly the case when the cover layer is formed from a plastic nonwoven fabric, since a hot melt adhesive is particularly suitable both for bonding of metal and bonding of plastic.
• a hot melt adhesive is particularly suitable both for bonding of metal and bonding of plastic.
• Adhesive layer is coated, and that
• a cover layer of a nonwoven fabric that is at least twice as thick as the adhesive layer, and that
• the adhesive layer is activated, wherein the adhesive fabric layer penetrates the cover layer in some areas and connects the cover layer with the metal foil.
• the adhesive layer penetrates the cover layer in the production of the metal backing printing blanket only in some areas. On the one hand, due to the area-wise penetration, it is ensured that the cover layer is securely connected to the metal foil. On the other hand, the fact that a portion of the cover layer is not completely penetrated by the adhesive layer, ensures that in the cover layer, a sufficiently large area for the
• a hot-melt adhesive is preferably used in the above-mentioned method. This achieves the advantages already mentioned above.
• the figure shows a metal back printed cloth 2 with a print layer 4, a fabric layer 6, a compressible layer 8, a metal foil 10, an adhesive layer 12 and a cover layer 14.
• the blanket 2 may also comprise further or alternative layers. It is also possible to dispense with the fabric layer 2. All layers of Metall Wegendrucktuches 2 are about
• the metal foil 10 protrudes at both edges of the blanket over the other layers 4, 6, 8, 12 and 14, so that free
• the cover layer 14 of the Metallnizendrucktuches consists of a nonwoven fabric, preferably from a plastic nonwoven fabric.
• the adhesive fabric layer 12 is preferably a
• Hot melt adhesive used in the form of a film The hot melt adhesive is heated during manufacture of the metal backing blanket and the adhesive fabric layer 12 is bonded to the cover layer 14 under the action of heat and pressure.
• hot melt adhesive from the adhesive layer 12 penetrates into the cover layer 14, so that in a region 14a, which adjoins the adhesive layer 12, the cover layer 14 is penetrated over the entire surface of the adhesive.
• the thickness of the penetration is at least 50% and at most 90% of the thickness of the cover layer 14, that is, the region 14a at least as thick or thick as the portion 14b of the cover layer 14, which is not penetrated by adhesive.
• the cover layer 14 is at least twice as thick as the adhesive layer 12 is formed to ensure a corresponding penetration.
• an adhesive cloth layer in the form of a film with a thickness of 0.03 mm and a cover layer with a thickness of 0.15 mm can be selected.

Landscapes

• Printing Plates And Materials Therefor (AREA)
• Laminated Bodies (AREA)
• Adhesives Or Adhesive Processes (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

Family

ID=45509509

Family Applications (1)

Country Status (6)

Families Citing this family (1)

Citations (2)

Family Cites Families (2)

• 2011
  • 2011-03-16 DE DE102011001317A patent/DE102011001317A1/de not_active Withdrawn
• 2012
  • 2012-01-19 WO PCT/EP2012/050764 patent/WO2012123146A1/de not_active Ceased
  • 2012-01-19 EP EP12700689.8A patent/EP2686170B1/de not_active Not-in-force
  • 2012-01-19 CN CN201290000353.6U patent/CN203780092U/zh not_active Expired - Lifetime
  • 2012-01-19 JP JP2013558329A patent/JP5940563B2/ja not_active Expired - Fee Related
• 2013
  • 2013-09-16 US US14/027,699 patent/US20140013975A1/en not_active Abandoned

Patent Citations (3)

Also Published As

Similar Documents

Legal Events