EP1313621A1 - Procede de fabrication d'un blanchet d'impression et blanchet ainsi obtenu - Google Patents
Procede de fabrication d'un blanchet d'impression et blanchet ainsi obtenuInfo
- Publication number
- EP1313621A1 EP1313621A1 EP01940640A EP01940640A EP1313621A1 EP 1313621 A1 EP1313621 A1 EP 1313621A1 EP 01940640 A EP01940640 A EP 01940640A EP 01940640 A EP01940640 A EP 01940640A EP 1313621 A1 EP1313621 A1 EP 1313621A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- blanket
- layers
- blanket according
- elastomers
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007639 printing Methods 0.000 title claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims abstract description 20
- 239000000806 elastomer Substances 0.000 claims abstract description 20
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 6
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- 229920000103 Expandable microsphere Polymers 0.000 claims description 4
- 239000002861 polymer material Substances 0.000 claims description 4
- 239000012815 thermoplastic material Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims 3
- 230000008018 melting Effects 0.000 claims 3
- 238000004132 cross linking Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 81
- 229920000642 polymer Polymers 0.000 description 20
- 239000000835 fiber Substances 0.000 description 8
- 230000002787 reinforcement Effects 0.000 description 7
- 230000009467 reduction Effects 0.000 description 6
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000010408 film Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- -1 modified or not Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 230000000711 cancerogenic effect Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 231100000315 carcinogenic Toxicity 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011325 microbead Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000013557 residual solvent Substances 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002009 allergenic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007849 functional defect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000219 mutagenic Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
-
- 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
- B41N2210/02—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
- 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
- B41N2210/14—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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/909—Resilient layer, e.g. printer's blanket
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2984—Microcapsule with fluid core [includes liposome]
-
- 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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
-
- 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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
Definitions
- the invention relates to a method for manufacturing a printing blanket obtained by assembling a plurality of layers and a blanket thus obtained.
- Blankets of this type are produced by coating successive layers of elastomers on fabric reinforcements. These layers are dried, assembled and vulcanized.
- the materials used and the methods of manufacturing these blankets involve the use of chemicals dangerous to man and the environment such as solvents, vulcanizing agents, plasticizers and decomposition products during vulcanization as well than carbon black. Indeed, these products contain in particular carcinogenic substances or supposed to be carcinogenic, such as plasticizers, carbon black and decomposition products, substances dangerous for reproduction and mutagenic substances such as in particular vulcanizing agents, allergenic substances , harmful and flammable like solvents and toxic and corrosive substances.
- the known blankets manufactured according to known methods keep a residual solvent level whatever the drying precautions taken by the manufacturers. These residual solvents can cause porosity and untimely sagging during storage and operation. It should be noted that sagging is one of the serious functional defects of blankets.
- the known blankets still have the disadvantage of developing vapors and odors which can inconvenience users. in case of confined storage.
- these blankets according to the state of the art can hardly be eliminated at the end of life, in particular because of their chlorine and sulfur content.
- the object of the invention is to provide a process and blankets obtained according to this process, which make it possible to eliminate the danger to the environment and to humans from the abovementioned manufacturing processes and blankets produced according to these processes.
- the method according to the invention is characterized in that the different layers are fixed to each other by means not involving the use of solvents, in particular by a treatment of the Corona type, of ionization or flaming.
- elastomers which do not contain thermal crosslinking agents and are of thermoplastic nature are used for the production of the layers.
- the production of the elastomer layers is carried out dry without the use of solvents, advantageously by extrusion.
- a layer of thermoplastic material of a predetermined length, is wound around a sleeve forming a support, after having bevelled the ends of this layer , by superimposing the beveled ends and creating a tubular structure by assembling the ends by appropriate heating, the tubular structure thus obtained being able to serve as a support for the production of another tubular layer.
- the lithographic layer of a sleeve-shaped blanket is crosslinked by radiation, then, if necessary rectified and sanded.
- a compressible tubular layer is produced by giving it the possibility of expansion during hot assembly of the ends, thanks to expandable microspheres, previously incorporated into the layer.
- FIGS. 1 to 6 are sectional views of six embodiments of a blanket according to the invention.
- FIG. 7 is a schematic view illustrating a method of producing a blanket according to the invention.
- a multilayer blanket according to the invention which does not constitute a danger to man and to the environment is advantageously produced by extrusion of successive layers of elastomers assembled with reinforcements and other layers of elastomers or polymers assembled in a shell downstream of one extruder.
- the fabrics used to assemble the layers are caused to adhere to the elastomer layers by treatment of the Corona type or by ionization or flame treatment to avoid the use of solvents.
- Adhesives without solvents of the pressure-sensitive type may also be used.
- the elastomers used in the context of the invention are mixed in the sheath of a extruder fed with the various ingredients of the formulation, or premixed by means known per se and fed into this sheath in the form of granules or the like.
- the elastomers used in the context of the invention have the particularities that they do not contain thermal crosslinking agents. They are of a thermoplastic nature with a suitable rheology and the different layers can be crosslinked by radiation after assembly of all or part of the blanket.
- the elastomer layers are produced by dry methods without the use of solvents and in particular by extrusion.
- the materials used have the ability to become fluid at high temperature and therefore allow the creation of good quality thin films, in particular by extrusion.
- formulations of elastomers or polymers of the TPU type could be named in combination with other polymers, dynamic vulcanization elastomers of the type based on PP, PAN and PVC, elastomers of the styrenic family, formulations of elastomers of the olefin family, copolymers of olefins and functionalized olefins, elastomers of the acrylonitrile family, EPDM or CSM or also ACM or AEM and combinations of elastomers, modified or not, fiber reinforcements or yarns of aramid type, fiber reinforcements or yarns of polyethylene or polypropylene type, fiber reinforcements or yarns of polyester type or mixtures of.
- tubular blankets comprising one or more compressible layers, one or more reinforcing layers, a lithographic layer, associated, where appropriate, with a support layer, with other functional layers or with layers of filling.
- a tubular lithographic layer can be produced from a lithographic layer obtained by extrusion and cut to the appropriate length and after having bevelled the ends, by winding this layer on a support sleeve, by superimposing the bevelled ends. and heating them.
- This layer could be cross-linked by radiation, if necessary, then rectified and sanded.
- the support sleeve in this case could be the layer of the blanket on which the lithographic layer rests.
- a compressible layer could be produced in a similar manner with the additional possibility of ensuring the expansion of this layer during assembly. ends by means of expandable microspheres previously incorporated into the materials forming the layer.
- extruded film intended to become a compressible layer could advantageously include fibers which will be oriented in the plane during extrusion to give the layer anisotropic properties.
- extruded film comprising oriented fibers may also act as a layer of reinforcement or stabilization or control of paper flow.
- the tubular structure can also be obtained by direct extrusion of one or more successive concentric layers on the sleeve having an internal support and in progress.
- the direct extrusion can be of the ribbon type or of the annular type. As a variant, co-extrusion is also possible.
- the thickness of the blanket can be uniformed by rectification of this layer on the back, while preserving or even improving the printing qualities of the blanket.
- the rectification of the polymer layer on the back makes it possible to regularize the thickness, in particular of the blankets with rectified and sanded lithographic layer and of blankets with a smoother surface obtained by molding and thus exhibiting excellent print quality.
- the invention is applicable to all blankets, the thickness of which must be uniform, regardless of the means used to produce a lithographic surface ensuring good print quality.
- the invention thus makes it possible to obtain, compared to the blanket without rectification, a gain in precision by a factor of 2, namely an overall thickness tolerance of +/- 0.01 mm against +/- 0.02 mm approximately from the state of the art.
- the invention also makes it possible to obtain a reduction in the total thickness of the blanket. Indeed, in separating the different functions to be performed by the blanket, and by conferring these functions on specific layers, an optimal blanket structure can be established by assembling layers of fabric, compressible layers and the lithographic layer. It has been found that the use of a beam or a woven wire or grid makes it possible to replace several fabrics and thus provides a reduction in thickness.
- the use of an aramid-type wire beam for example saves the relative thickness of at least one ply of fabric.
- the gain is at least 0.5 mm.
- the beam used in the context of the invention is itself thinner than the fabrics it replaces.
- the beam replaces reinforcing fabrics which contribute to the compressibility of the blanket, this compressibility is maintained despite the removal of the fabrics by rendering the polymer layer on the back, compressible accordingly.
- the invention makes it possible to produce a blanket of a practically uniform thickness of 1.00 to 1.30 mm while retaining the breaking strength of known blankets which, for the most part, have a thickness of 1.7 to 2 m.
- the invention allows the production of a blanket comprising, from inside to outside the following layers: a layer of slightly compressible polymer, an aramid beam or the equivalent in warp direction, a main compressible layer, a stabilization fabric with , for example, monofilaments in the weft and flexible warp direction and a lithographic layer.
- the stabilization fabric can be replaced by a layer of hard polymer possibly reinforced with fibers and, in a second variant, the compressible layer or layers can be made anisotropic by incorporating fibers oriented in the plane of the blanket.
- Figures 1 to 6 show the structure of six advantageous embodiments of a blanket according to the invention, having a reduced thickness.
- the blanket shown in FIG. 1 comprises, from the interior to the exterior, a layer of slightly compressible polymer 1, a compressible layer 3 in which the beam 2 is integrated, a stabilization fabric or reinforced hard layer 4, and a lithographic layer 5.
- the blanket has a thickness of approximately 1.2 mm.
- the compact polymer layer 6 is removed with respect to the blanket of FIG. 1, which makes it possible to reduce the thickness of the blanket to approximately 1.1 mm.
- FIG. 3 shows a blanket in which the beam 2 is integrated into the polymer layer 1 on the back of the blanket, the compact polymer layer 6 also being removed.
- the thickness of the blanket is approximately 1.2 mm.
- the blanket of Figure 4 corresponds to that of Figure 3, with the difference however that the beam 2 is integrated in the compressible layer in the upper part thereof.
- the thickness of the blanket is 1.1 mm.
- the blanket shown in Figure 5 has an even smaller thickness of about 1 mm thanks to the fact that the layers 1 of compressible polymer and layer 6 of compact polymer have been omitted, the assembly 2 being integrated into the compressible layer 3 at the top thereof.
- FIG. 8 shows a blanket comprising on the back a compressible layer 3 with the beam integrated in the upper part thereof, an anisotropic compressible layer 7 and a lithographic layer 5. The thickness of this blanket is also about 1 mm.
- fine particles for example glass microbeads or polymer or ceramic powders.
- glass microbeads good surface water spreading properties are obtained.
- the inlay of the particles can also be made on the surface of the back layer if it is made of a polymer material. This inlay makes it possible to advantageously reduce and the coefficient of friction of this surface. A low coefficient of friction is very useful to facilitate fixing to the cylinder of the printing machine.
- the encrusted particles are preferably spherical in nature and have diameters preferably between 1 and 100 microns.
- FIG. 7 illustrates a method and an advantageous installation for implementing this inlay.
- the polymer layer 8 is passed through the surface of which the particles are to be embedded, downstream of the extruder die 9, with the blanket carcass shown at 10 between two calender cylinders 11 and 12.
- the calender cylinder which comes into contact with the surface to be treated 13, namely the lower cylinder 12, plunges at its lower part into a tank 15 containing fine particles for example in the form of a powder .
- the passage of the plunger cylinder through this tank causes the formation of a film of particles indicated at 17 on the surface of the cylinder, which, by turning, transports them and embeds them in the surface 13 of the polymer layer 8.
- the roughness of the surface of the plunger cylinder is one of the parameters of the quantity of particles transported.
- the tank can be animated with a vibrating movement to guarantee a regular deposit on the surface of the plunger grille cylinder.
- a scraper device for the plunger cylinder can also be provided to measure the quantity of particles deposited and encrusted on the surface of the blanket.
- the inlay described here can be done on the surface of a polymer film previously extruded and, if necessary, rectified by simple reheating of the surface thereof by means known per se, such as ramps infrared, and passage of the blanket with its layer of polymer heated on the surface between the cylinders of the calender of FIG. 7.
- the invention provides many advantages. Thanks to the rectification of the polymer layer on the back of the blanket, its thickness is more precise and uniform. This has a direct impact on the performance of the blankets. Indeed, a controlled thickness improves the printing quality and the longevity of the blankets. A more regular blanket thickness also lengthens the life of the latter by allowing a reduced covering height limiting the mechanical forces on the blanket and thus delaying the possible appearance of weak printing.
- the excellent print quality provided by a smooth and even very smooth printing surface can be maintained. Such a smooth surface makes it possible to print the details precisely and generate a so-called “sharp" impression or even a "high fidelity” impression. It allows the use of a stochastic frame.
- the smooth surface can be characterized by a very low roughness (Ra: average roughness measured with a profilometer) of less than 0.4 ⁇ against values of 0.8 to 1.5 ⁇ for blankets of the state of the art.
- Ra average roughness measured with a profilometer
- the deterioration of the thickness when it is desired to obtain a very smooth " printing surface, for example by sanding this surface and the compromise made for known blankets which are content with a less efficient sanding and therefore with a surface less smooth can be eliminated thanks to the rectification of the layer on the back, as proposed by the invention.
- the reduction in the thickness of the blankets provides a reduction in vibrations by making it possible to design cylinders with a narrow groove for fixing the blanket and therefore minimizing bounces during high-speed driving.
- the invention also ensures a reduction in cost insofar as a thin blanket requires for its production a lesser quantity of material which is the most important item in the cost price.
- the invention allows a further reduction in the quantities of waste. In fact, thinner blankets mean less waste to be eliminated.
- by encrusting particles on the surface of the lithographic layer, or the layer on the back one can obtain a desired microheterogeneity of surface and / or reduce the friction of the blanket on the support.
- the invention makes it possible to produce "ecological" blankets, that is to say constituting no risk for man and for the environment.
Landscapes
- Printing Plates And Materials Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0007066A FR2809667B1 (fr) | 2000-05-31 | 2000-05-31 | Procede de fabrication d'un blanchet d'impression et blanchet ainsi obtenu |
| FR0007066 | 2000-05-31 | ||
| PCT/FR2001/001678 WO2001092026A1 (fr) | 2000-05-31 | 2001-05-30 | Procede de fabrication d'un blanchet d'impression et blanchet ainsi obtenu |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1313621A1 true EP1313621A1 (fr) | 2003-05-28 |
| EP1313621B1 EP1313621B1 (fr) | 2014-09-10 |
Family
ID=8850893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01940640.4A Expired - Lifetime EP1313621B1 (fr) | 2000-05-31 | 2001-05-30 | Procede de fabrication d'un blanchet d'impression et blanchet ainsi obtenu |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7238257B2 (fr) |
| EP (1) | EP1313621B1 (fr) |
| JP (1) | JP2003534949A (fr) |
| CN (1) | CN1274517C (fr) |
| AU (1) | AU2001274157A1 (fr) |
| BR (1) | BR0111326B1 (fr) |
| CA (1) | CA2408629A1 (fr) |
| FR (1) | FR2809667B1 (fr) |
| WO (1) | WO2001092026A1 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6912955B2 (en) * | 2003-08-21 | 2005-07-05 | Reeves Brothers, Inc. | Metal-backed printing blanket |
| ITMI20040041A1 (it) | 2004-01-15 | 2004-04-15 | Printgraph Waterless S P A | Sottorivestimento autolivellante per macchine da stampa |
| FR2884753B1 (fr) | 2005-04-22 | 2008-08-08 | Macdermid Graphic Arts Sas Soc | Blanchet d'impression destine a etre monte sur un cylindre de support rotatif d'une machine d'impression. |
| FR2887490B1 (fr) | 2005-06-23 | 2008-12-19 | Macdermid Graphic Arts Sas Soc | Blanchet d'impression offset et procede de realisation d'un tel blanchet |
| US8783178B2 (en) * | 2005-11-09 | 2014-07-22 | Day International, Inc. | Printing blanket including a non-extensible backing layer and a relief area which may be mounted in a variety of lockup mechanisms |
| WO2011115452A2 (fr) * | 2010-03-19 | 2011-09-22 | 주식회사 엘지화학 | Blanchet pour impression offset et son procédé de fabrication |
| US9950549B2 (en) * | 2016-05-27 | 2018-04-24 | Xerox Corporation | Imaging plate multi-layer blanket |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814319B2 (ja) * | 1976-04-26 | 1983-03-18 | 京セラミタ株式会社 | 平版又はオフセツト印刷用版及びその製法 |
| US4224370A (en) * | 1978-01-23 | 1980-09-23 | W. R. Grace & Co. | Transverse stiffened screen printing blanket |
| GB2089288B (en) * | 1980-11-28 | 1985-04-17 | Porvair Ltd | Printing blankets |
| CA1154691A (fr) | 1980-12-12 | 1983-10-04 | David E. Morris | Dispositif de lechage de fluides repandus a la surface d'un plan d'eau |
| US4771078A (en) * | 1985-11-12 | 1988-09-13 | The Goodyear Tire & Rubber Company | Method of producing a foam from a radiation-curable composition |
| JPH01141035A (ja) * | 1987-11-28 | 1989-06-02 | Kinyosha Kk | ゴムブランケットの製造方法 |
| JPH01225594A (ja) * | 1988-03-03 | 1989-09-08 | Sumitomo Rubber Ind Ltd | オフセットブランケット |
| JPH0248997A (ja) * | 1988-08-11 | 1990-02-19 | Fujikura Rubber Ltd | 印刷用ブランケット及びその製造方法 |
| US5006400A (en) * | 1988-12-09 | 1991-04-09 | Day International | Printing blanket construction having nontextured surface |
| US5252157A (en) * | 1989-05-01 | 1993-10-12 | Central Plastics Company | Electrothermal fusion of large diameter pipes by electric heating wire wrapping and sleeve connector |
| US5352507A (en) * | 1991-04-08 | 1994-10-04 | W. R. Grace & Co.-Conn. | Seamless multilayer printing blanket |
| JPH0592678A (ja) * | 1991-10-02 | 1993-04-16 | Sumitomo Rubber Ind Ltd | 印刷用オフセツトブランケツト |
| US5364683A (en) * | 1992-02-14 | 1994-11-15 | Reeves Brothers, Inc. | Compressible printing blanket and method of making same |
| US5357863A (en) * | 1991-11-15 | 1994-10-25 | Day International, Inc. | Printing blanket for use with a printing cylinder to achieve a narrow gap lock-up |
| DE69230944T2 (de) * | 1991-11-15 | 2001-01-04 | Reeves Brothers, Inc. | Komprimierbares drucktuch und verfahren zur herstellung |
| DE4217793C1 (de) * | 1992-05-29 | 1993-12-09 | Roland Man Druckmasch | Offset-Gummituch und Verfahren zu dessen Herstellung |
| DE4219509C1 (de) * | 1992-06-13 | 1993-12-02 | Continental Ag | Mehrschichtiges Drucktuch und Verfahren zu seiner Herstellung |
| FR2718079B1 (fr) * | 1994-03-31 | 1996-05-15 | Rollin Sa | Blanchet d'impression perfectionné et cylindre d'impression équipé de ce blanchet. |
| AU682884B2 (en) * | 1994-07-29 | 1997-10-23 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Skin material having plurality of minute recesses and projections in and on its surface, method of manufacturing the same, and method of manufacturing molded products using the same skin material |
| DE4447179A1 (de) * | 1994-12-30 | 1996-07-04 | Koenig & Bauer Albert Ag | Gummituchzylinder für Offsetdruck |
| WO1997000169A1 (fr) * | 1995-06-16 | 1997-01-03 | Reeves Brothers, Inc. | Structure de blanchet pour impression numerique |
| JPH1010675A (ja) * | 1996-04-22 | 1998-01-16 | Fuji Photo Film Co Ltd | 記録材料 |
| US5795647A (en) * | 1996-09-11 | 1998-08-18 | Aluminum Company Of America | Printing plate having improved wear resistance |
| FR2770451B1 (fr) * | 1997-11-06 | 1999-12-31 | Rollin Sa | Couche lithographique perfectionnee pour blanchet d'impression et blanchet equipe de cette couche |
| JP3731991B2 (ja) * | 1997-11-07 | 2006-01-05 | 住友ゴム工業株式会社 | 印刷用ブランケットの製造方法 |
| JPH11314343A (ja) * | 1998-05-07 | 1999-11-16 | Fuji Photo Film Co Ltd | 印刷方法及び装置並びに印刷版材用版下材料 |
| DE19820357C1 (de) * | 1998-05-07 | 1999-10-07 | Roland Man Druckmasch | Verfahren und Vorrichtung zum Bearbeiten einer Schweißnaht an eine Trägerhülse |
-
2000
- 2000-05-31 FR FR0007066A patent/FR2809667B1/fr not_active Expired - Fee Related
-
2001
- 2001-05-30 WO PCT/FR2001/001678 patent/WO2001092026A1/fr not_active Ceased
- 2001-05-30 BR BRPI0111326-7A patent/BR0111326B1/pt not_active IP Right Cessation
- 2001-05-30 CA CA002408629A patent/CA2408629A1/fr not_active Abandoned
- 2001-05-30 EP EP01940640.4A patent/EP1313621B1/fr not_active Expired - Lifetime
- 2001-05-30 AU AU2001274157A patent/AU2001274157A1/en not_active Abandoned
- 2001-05-30 CN CNB018104959A patent/CN1274517C/zh not_active Expired - Fee Related
- 2001-05-30 JP JP2001588017A patent/JP2003534949A/ja active Pending
-
2002
- 2002-11-27 US US10/304,750 patent/US7238257B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0192026A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003534949A (ja) | 2003-11-25 |
| WO2001092026A1 (fr) | 2001-12-06 |
| EP1313621B1 (fr) | 2014-09-10 |
| CN1431959A (zh) | 2003-07-23 |
| FR2809667A1 (fr) | 2001-12-07 |
| BR0111326A (pt) | 2003-06-10 |
| US20030129896A1 (en) | 2003-07-10 |
| CN1274517C (zh) | 2006-09-13 |
| AU2001274157A1 (en) | 2001-12-11 |
| BR0111326B1 (pt) | 2010-06-29 |
| FR2809667B1 (fr) | 2003-03-14 |
| US7238257B2 (en) | 2007-07-03 |
| CA2408629A1 (fr) | 2001-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0459916B1 (fr) | Eléments de friction en matériau composite carbone-carbone à texture différentielle, procédés et dispositifs pour les fabriquer | |
| US5798181A (en) | Fluoropolymer coated elastomeric rollers and structures | |
| FR2462997A1 (fr) | Rouleau revetu d'un materiau elastomere et son procede de preparation | |
| FR2577165A1 (fr) | Procede de preparation et de renovation d'un rouleau de fusion pour machine xerographique, rouleau de fusion et composition vulcanisable | |
| CA2347147A1 (fr) | Corps de revolution creux et son procede de fabrication | |
| EP1313621B1 (fr) | Procede de fabrication d'un blanchet d'impression et blanchet ainsi obtenu | |
| EP1309457B1 (fr) | Procede de fabrication d'un blanchet d'impression comportant une couche au dos en un materiau polymere et blanchet ainsi obtenu | |
| FR3052386A1 (fr) | Filament pour impression 3d, procede de fabrication d'un tel filament, et procede de fabrication d'un objet par impression 3d | |
| FR2476543A1 (fr) | Procede de fabrication d'une feuille stratifiee | |
| EP1313622B1 (fr) | Procede de fabrication d'un blanchet d'impression multicouches et blanchet ainsi obtenu | |
| FR2571299A1 (fr) | Procede de fabrication d'une matiere a mouler a base de resine thermodurcissable, renforcee par des fibres | |
| FR2788720A1 (fr) | Blanchet pour un cylindre a gorge etroite d'une machine a imprimer | |
| EP3600863B1 (fr) | Membrane de cuisson pour pneumatique | |
| WO2021094672A1 (fr) | Piece a resistance a l'usure par frottement amelioree | |
| EP1000774B1 (fr) | Appui de sécurité en matériau élastomérique injectable pour pneumatique | |
| BE1008708A3 (fr) | Procede et dispositif de fabrication d'un tuyau composite renforce. | |
| JPH05134574A (ja) | 定着ローラ及びその製造方法 | |
| FR2878608A1 (fr) | Revetement de protection thermique a pieces elementaires gauches et leur procede de fabrication | |
| FR3035873A1 (fr) | Courroie transporteuse en textile avec couches de pvc et revetement de polyester et procede de formation de celle-ci | |
| BE716638A (fr) | ||
| FR2811256A1 (fr) | Procede de fabrication d'un manchon a ponts de compensation, notamment pour la flexographie et manchon obtenu | |
| EP0697553A1 (fr) | Tuyau composite et procédé pour sa fabrication | |
| FR2938170A1 (fr) | Plateau de restauration recyclable et son procede de fabrication | |
| FR3046953A1 (fr) | Procede pour realiser un composant notamment une piece de forme et un composant | |
| WO1996005043A1 (fr) | Moyens et procede d'application d'une couche de finition de matiere plastique a la surface d'un tuyau; tuyau revetu |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20021120 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MACDERMID GRAPHIC ARTS S.A.S. |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MACDERMID PRINTING SOLUTIONS EUROPE SAS |
|
| 17Q | First examination report despatched |
Effective date: 20060714 |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20070125 |
|
| 18RA | Request filed for re-establishment of rights before grant |
Effective date: 20080122 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TRELLEBORG COATED SYSTEMS FRANCE SAS |
|
| D18D | Application deemed to be withdrawn (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20140523 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 686460 Country of ref document: AT Kind code of ref document: T Effective date: 20141015 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 60149001 Country of ref document: DE Effective date: 20141023 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140910 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141211 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140910 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140910 |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20140910 |
|
| REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140910 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 686460 Country of ref document: AT Kind code of ref document: T Effective date: 20140910 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140910 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150112 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140910 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 60149001 Country of ref document: DE |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140910 |
|
| 26N | No opposition filed |
Effective date: 20150611 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 60149001 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150530 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150531 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140910 Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150530 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150531 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150530 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20160129 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150530 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150530 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151201 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150601 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140910 |