EP1132768B1 - Schichtträger - Google Patents
Schichtträger Download PDFInfo
- Publication number
- EP1132768B1 EP1132768B1 EP01104230A EP01104230A EP1132768B1 EP 1132768 B1 EP1132768 B1 EP 1132768B1 EP 01104230 A EP01104230 A EP 01104230A EP 01104230 A EP01104230 A EP 01104230A EP 1132768 B1 EP1132768 B1 EP 1132768B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- polyethylene
- weight
- polypropylene
- base paper
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
- G03C1/79—Macromolecular coatings or impregnations therefor, e.g. varnishes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
Definitions
- the invention relates to a substrate for photographic and non-photographic Imaging method with a base paper and at least one arranged on the front of the base paper thermoplastic layer.
- polyethylene For coating the front of papers for Begroclar is usually polyethylene with a low density (LDPE) used.
- LDPE low density
- the advantages This polymer is mainly in the price and in the largely trouble-free processing. That's how it turns out in particular, the extrusion of a film with uniform Thickness unproblematic dar.
- the with polyethylene coated photo papers can be easily further processing, i. with the photosensitive Douse emulsion layers.
- a very good adhesion between the gelatine of the photoemulsion and the Coated paper can be made by corona treatment of the PE paper be achieved.
- Polyethylene coatings show however, compared to coatings with other polymers also a number of disadvantages. At the thermal Processing, the LDPE molecules tend to Cross-linking reactions, what the melt viscosity significantly increases.
- Polypropylene shows in the thermoplastic processing not these problems. When processing is a observed drastic lowering of the melt viscosity, the by partial breakage of the polymer chains without subsequent crosslinking reactions can be explained. Polypropylene is thus much better suited than LDPE, Unevenness of the paper backing to be coated equalize and thus leads to a visually smoother Surface of the extruded paper.
- EP 0 880 065 A describes a photocarrier material which characterized by a particularly smooth surface and high Stiffness distinguishes.
- This carrier material exists from a paper backing and a multilayer film on the front side.
- the foil is made up of at least three layers together and is biaxially oriented. Polypropylene films are preferably used. through an extruded polyethylene layer Paper underlay and foil joined together.
- the disadvantage here are the high production costs and the insufficient adhesion of the photographic emulsion. To improve the adhesion must be an additional Adhesive layer are applied.
- EP 0 880 066 A also describes a photo carrier from a paper pad and a multi-layered Polypropylene film.
- This foil is made with a polyethylene extrusion coated. This will be an easily accessible Adhesion of the photographic layer, with good surface achieved, the cost compared to a standard photo carrier but again increased. Disadvantages are still the Adhesion problems between polypropylene film and extruded polyethylene layer occur.
- JP 7 092 607 A describes one with polyethylene Coated photorafic substrate with high gloss and good adhesion.
- the only polyethylene layer contains as a main component by means of metallocene catalysts produced polyethylene.
- the ratio Mw / Mn is in this polyethylene greater than 5.
- the disadvantage is at this paper the tendency to Mottle. An increase in the Stiffness can not be achieved by this substrate be achieved.
- JP 7 270 969 A describes a photocarrier material which on the front with a polyethylene and a Polypropylene layer can be coated. It will the polypropylene layer is applied as an upper layer. This gives a carrier material with a high Smoothness. However, the adhesion emulsion is at this Execution only insufficient. Also the adhesion between the polymer layers is not satisfactory.
- US 6 017 686 A describes a photographic Layer support of a raw paper and a Polyolefinaussen für consisting of several Polyethylene layers consists.
- US 5 888 714 A also describes a photographic backing of a base paper and a polyolefin outer layer with overlying Silver halide.
- the polyolefin layer is through a metallocene polyethylene layer directly on the base paper connected to the base paper
- the object of the invention is to provide a Layered support for photographic and non-photographic Bercisungsclar with a film-like, smooth Surface, on the one hand good adhesion of photographic emulsion or the receiving layer and On the other hand good adhesion between the different ones thermoplastic polymer layers with good Mottle behavior, high stiffness and Tear strength at the same time low Production costs enabled.
- thermoplastic layer at least one on the Base paper arranged polyolefin layer and at least an over the polyolefin layer arranged Polyethylene layer contains, and the polyethylene layer a by means of metallocene catalysts available Polyethylene, wherein the metallocene polyethylene a Ratio Mw / Mn of about ⁇ 3.5.
- Metallocene polyethylenes are copolymers of ethene with ⁇ -olefins such as butene-1, hexene-1 or octene-1, with the help of produced by metallocene catalysts. These Polyethylenes and their preparation is known.
- a raw paper On the surface of a raw paper is by means of (Co) extrusion at least one polyolefin layer and applied at least one polyethylene layer.
- the Polyolefin layer is on the base paper.
- the polyethylene layer is above the polyolefin layer arranged.
- the different types of polyethylene such as HDPE, MDPE, LDPE be used.
- These polyolefins can by means of Ziegler or metallocene catalysts produced be.
- polypropylene, polybutylene and other polyolefins is possible.
- the lower layer is a Polypropylene layer.
- the positive properties of the lower layer like uniform coverage of the base paper and high smoothness with the good adhesion properties of the polyethylene be combined.
- the coating weight of the polyolefin layer may be 10 and 35 g / m 2 , preferably 15 and 25 g / m 2 .
- the application weight of the polyethylene layer is 2 to 30 g / m 2 , preferably 10 and 20 g / m 2 .
- For polypropylene coating all known types of polypropylene are suitable. Propylene homopolymers and / or propylene copolymers can be used. It is also possible to use mixtures of polypropylene with other polyolefins. Particular preference is given to polypropylene types with long chain branches (HMS types).
- pigments such as titanium dioxide, clay (kaolin), calcium carbonate or zinc oxide may be added. Titanium dioxide may be present in an amount of 0 to 15 wt%, preferably 5 to 12 wt% in the layer in the layer. Titanium dioxide can be used in either the anatase or rutile form.
- a mixture of standard LDPE (density 0.9-0.936 g / cm 3 ) and an LDPE produced by means of metallocene catalysts is preferably used.
- metallocene polyethylenes with a ratio Mw / Mn of ⁇ 3.5. In particular, a ratio Mw / Mn of 1.8 to 2.8 is preferred.
- the proportion of metallocene polyethylene is 10 to 60 wt.%, Preferably 20 to 40 wt.%.
- Particularly suitable is a metallocene LDPE having a density of 0.70 to 0.90 g / cm 3 .
- the pigments used in the polypropylene layer may also be added. Titanium dioxide is also preferably used in this layer in an amount of 7 to 20%, in particular in an amount of 10 to 16% by weight, in one of the two aforementioned crystal forms.
- the back side of the base paper can be coated in the same way as the front side.
- An extrusion coating with a polyethylene homopolymer and / or copolymer is preferred.
- the application weight of the backside layer is 5 to 60 g / m 2 , in particular 10 to 40 g / m 2 .
- the base paper For the production of the base paper, all types of cellulose fibers and synthetic fibers are suitable. It can be used softwood and / or hardwood pulp, which has been digested by alkaline or acidic processes. For sizing, all sizing agents and wet strength agents known in the paper industry are suitable. Suitable pigments are inorganic compounds such as clay (kaolin), calcium carbonate and titanium dioxide.
- the base paper may contain other auxiliaries such as defoamers, optical brighteners and dyes. It can be produced on Foudrinier or cylinder paper machines.
- the basis weight of the base paper may be 40 to 300 g / m 2 . To improve the surface properties, the base paper can be treated with a calender or a calender.
- the inventive coating of the base paper with the thermoplastic polymers can be extrusion or Coextrusion done.
- the polymer layers be applied sequentially or simultaneously.
- the Extrusion speed can be between 100 and 500 m / min be.
- the base paper can be used with other functional layers such as Antistatic layer or printability layer on front and / or back side.
- the base paper a mixture of 50% by weight of hardwood sulphate pulp and 50% by weight of hardwood sulphite pulp was ground at a consistency of 4% to a freeness of 35 ° SR.
- the pulp suspension was added as sizing agents corn starch, polyamide / polyamine-epichlorohydrin resin, alkyl ketene dimer, epoxide and fatty acid amide, and from this a 190 g / m 2 heavy base paper was produced.
- the paper was surface glued and smoothed with a polyvinyl alcohol solution.
- the raw paper was on the front by means of Coextrusion with a polypropylene as the lower layer and a polyethylene provided as an upper layer.
- the Layers had the following composition:
- the raw paper was on the front by means of Coextrusion with a polypropylene as the lower layer and a polyethylene provided as an upper layer.
- the Layers had the following composition:
- the raw paper was on the front by means of Coextrusion with a polypropylene as the lower layer and a polyethylene provided as an upper layer.
- the Layers had the following composition:
- the raw paper was on the front by means of Coextrusion with a polyethylene as the lower layer and a polyethylene provided as an upper layer.
- the Layers had the following composition:
- Affinity® EG 8200 is a metallocene polyethylene with a density of 0.870 g / cm 3 and a melt index of 5.0 g / 10 min, ratio Mw / Mn 2.8.
- Stamylan® LD 2304 is an LDPE with a density of 0.923 g / cm 3 and a melt index of 4.4 dg / min.
- PF-6111® is a polypropylene homopolymer with a density of 0.90 g / cm 3 and a melt index of 30 dg / min.
- the reverse side of the papers coated according to the examples was extrusion coated with a mixture of 50% by weight of an LDPE and 50% by weight of a high density polyethylene (HDPE).
- the application weight was 25 g / m 2 .
- a layer of 80 wt.% LDPE, Stamylan® LD 2304 from DSM and 20 wt.% LDPE masterbatch with 50 wt.% Titanium dioxide in rutile form was applied to the base paper by melt extrusion.
- the application weight was 35 g / m 2 .
- the surface of the coated support was irradiated with a corona power of 30 KW.
- the polypropylene from Example 1 was applied to the base paper by coextrusion as the lower layer.
- As the upper layer a mixture of LDPE and a metallocene polyethylene having a ratio Mw / Mn of 5.7 was applied analogously to JP-7 092 607.
- the coating weight of the polypropylene layer was 20 g / m 2 , that of the polyethylene layer 15 g / m 2 .
- the polypropylene from Example 1 was applied at an application weight of 35 g / m 2 by extrusion.
- the reverse side of the paper coated according to the comparative examples was extrusion-coated with a mixture of 50% by weight of an LDPE and 50% by weight of a high-density polyethylene (HDPE).
- the application weight was 25 g / m 2 .
- Adhesion - Examples of Examples 1 to 4 and Comparative Example were coated with a silver bromide photosensitive emulsion. The patterns were exposed to medium gray tone and developed. The wet emulsion was scratched. Then it was rubbed across the damaged area 20 times with a cloth. The peeling of the emulsion was evaluated visually with grades 1 to 6 (no peeling to strong peeling).
- Comparative Example 4 could not be sufficient Adhesion between polypropylene and polyethylene layer be achieved.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Optics & Photonics (AREA)
- Laminated Bodies (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Paper (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Materials For Medical Uses (AREA)
Description
Probe | Glanz | Mottle | Haftung |
Beispiel 1 | 77,9 | 1 | 1 |
Beispiel 2 | 78,3 | 1 | 1 |
Beispiel 3 | 78,2 | 1 | 1 |
Beispiel 4 | 78,1 | 1 | 1 |
Vergleichsbeispiel 1 | 73,9 | 2-3 | 2 |
Vergleichsbeispiel 2 | 74,1 | 2-3 | 2 |
Vergleichsbeispiel 3 | 74,2 | 2-3 | 2 |
Vergleichsbeispiel 4 | 78,5 | 1-2 | 5 |
Claims (7)
- Schichtträger für fotografische und nichtfotografische Bebilderungsverfahren mit einem Rohpapier und einer auf der Vorderseite angeordneten thermoplastischen Schicht, dadurch gekennzeichnet, dass die thermoplastische Schicht mindestens eine auf dem Rohpapier angeordnete Polyolefinschicht und mindestens eine über der Polyolefinschicht angeordnete Polyethylenschicht enthält, und die Polyethylenschicht ein mittels Metallocen-Katalysatoren erhältliches Polyethylen enthält, wobei das Metallocen-Polyethylen ein Verhältnis Mw/Mn von etwa ≤ 3,5 aufweist.
- Schichtträger nach Anspruch 1, dadurch gekennzeichnet, dass das Metallocen-Polyethylen eine Dichte von 0,70 bis 0,90 g/m3 aufweist.
- Schichtträger nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Anteil des Metallocen-Polyethylens in einer Schicht 10 bis 60 Gew.%, bezogen auf das Gewicht der Schicht, beträgt.
- Schichtträger nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Polyolefinschicht ein Polypropylenhomo- und/oder Copolymer enthält.
- Verwendung eines Schichtträgers nach einem der Ansprüche 1 bis 4 als Fotobasispapier.
- Verwendung eines Schichtträgers nach einem der Ansprüche 1 bis 4 als Träger einer Aufzeichnungsschicht für die Bedruckung nach dem Ink-Jet-Verfahren.
- Verwendung eines Schichtträgers nach einem der Ansprüche 1 bis 4 als Träger einer Aufzeichnungsschicht für die Bedruckung durch thermische Farbstoffdiffusion.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10009247 | 2000-02-28 | ||
DE10009247A DE10009247C1 (de) | 2000-02-28 | 2000-02-28 | Schichtträger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1132768A1 EP1132768A1 (de) | 2001-09-12 |
EP1132768B1 true EP1132768B1 (de) | 2005-08-03 |
Family
ID=7632633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01104230A Expired - Lifetime EP1132768B1 (de) | 2000-02-28 | 2001-02-22 | Schichtträger |
Country Status (6)
Country | Link |
---|---|
US (1) | US6656572B2 (de) |
EP (1) | EP1132768B1 (de) |
JP (1) | JP2001277451A (de) |
CN (1) | CN100489660C (de) |
AT (1) | ATE301300T1 (de) |
DE (2) | DE10009247C1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4758092B2 (ja) * | 2004-10-05 | 2011-08-24 | 富士フイルム株式会社 | 画像記録材料用支持体及び画像記録材料、並びに画像記録方法 |
EP1650599A1 (de) * | 2004-10-22 | 2006-04-26 | Fuji Photo Film B.V. | Mehrschichtiger Träger |
EP1717636A1 (de) * | 2005-04-25 | 2006-11-02 | Fuji Photo Film B.V. | Mehrschichtiger Aufzeichnungsträger |
EP2013660A1 (de) * | 2006-04-20 | 2009-01-14 | FUJIFILM Manufacturing Europe B.V. | Mehrschichtiger träger |
WO2008156364A1 (en) * | 2007-06-20 | 2008-12-24 | Fujifilm Manufacturing Europe B.V. | Multi-layer support |
JP5470978B2 (ja) * | 2009-03-31 | 2014-04-16 | 大日本印刷株式会社 | 熱転写受像シート及び熱転写受像シートの製造方法 |
EP2861429B1 (de) * | 2012-06-15 | 2016-06-08 | Schoeller Technocell GmbH & Co. KG | Empfangsschicht für digitale druckverfahren mit nanofibrillierter cellulose |
EP3024664B1 (de) * | 2013-07-25 | 2018-09-05 | Hewlett-Packard Development Company, L.P. | Aufzeichnungsmedium und verfahren zur herstellung davon |
CN112203861B (zh) * | 2018-05-25 | 2022-06-24 | 赢创运营有限公司 | 用于通过染料扩散热转印进行印刷的塑料材料 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2656314B1 (fr) * | 1989-12-22 | 1992-04-17 | Bp Chemicals Snc | Catalyseur a base de zirconium supporte sur du chlorure de magnesium, procede de preparation et utilisation du catalyseur dans la polymerisation des olefines. |
JP3490118B2 (ja) | 1993-09-27 | 2004-01-26 | 三菱製紙株式会社 | 画像材料用支持体 |
JPH07270969A (ja) | 1994-03-28 | 1995-10-20 | Fuji Photo Film Co Ltd | 写真印画紙用支持体 |
WO1998034156A1 (fr) * | 1997-01-31 | 1998-08-06 | Mitsubishi Paper Mills Ltd. | Support de materiau d'image |
DE19807209A1 (de) * | 1997-02-20 | 1998-08-27 | Mitsubishi Paper Mills Ltd | Träger für Abbildungsmaterial |
US6094889A (en) * | 1997-02-25 | 2000-08-01 | Exxon Chemical Patents, Inc. | Method of form and seal packaging |
US5853965A (en) | 1997-05-23 | 1998-12-29 | Eastman Kodak Company | Photographic element with bonding layer on oriented sheet |
US5888683A (en) | 1997-05-23 | 1999-03-30 | Eastman Kodak Company | Roughness elimination by control of strength of polymer sheet in relation to base paper |
US6083611A (en) * | 1997-11-12 | 2000-07-04 | Tenneco Packaging, Inc. | Roll wrap film |
US5888714A (en) * | 1997-12-24 | 1999-03-30 | Eastman Kodak Company | Adhesives such as metallocene catalyzed ethylene plastomers for bonding biaxially oriented polyolefin sheets to paper |
US6017686A (en) * | 1998-09-17 | 2000-01-25 | Eastman Kodak Company | Translucent display paper with biaxially oriented polyolefin sheets |
US6087079A (en) * | 1998-10-26 | 2000-07-11 | Eastman Kodak Company | High speed lamination of paper and biaxially oriented sheet |
US6114102A (en) * | 1998-10-26 | 2000-09-05 | Eastman Kodak Company | Imaging substrate with oxygen barrier layer |
US6287700B1 (en) * | 1998-12-30 | 2001-09-11 | Exxon Mobil Oil Corporation | Multi-layer film with enhanced lamination bond strength |
AU4449400A (en) * | 1999-04-06 | 2000-10-23 | Applied Extrusion Technologies, Inc. | Outdoor banner stock |
US6291148B1 (en) * | 2000-01-28 | 2001-09-18 | Eastman Kodak Company | Biaxially oriented image element with sharpening agent |
-
2000
- 2000-02-28 DE DE10009247A patent/DE10009247C1/de not_active Expired - Fee Related
-
2001
- 2001-02-22 EP EP01104230A patent/EP1132768B1/de not_active Expired - Lifetime
- 2001-02-22 AT AT01104230T patent/ATE301300T1/de not_active IP Right Cessation
- 2001-02-22 DE DE50106929T patent/DE50106929D1/de not_active Expired - Lifetime
- 2001-02-27 CN CNB011042699A patent/CN100489660C/zh not_active Expired - Fee Related
- 2001-02-27 JP JP2001052366A patent/JP2001277451A/ja active Pending
- 2001-02-27 US US09/794,805 patent/US6656572B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE301300T1 (de) | 2005-08-15 |
CN100489660C (zh) | 2009-05-20 |
DE10009247C1 (de) | 2001-10-18 |
JP2001277451A (ja) | 2001-10-09 |
EP1132768A1 (de) | 2001-09-12 |
CN1320836A (zh) | 2001-11-07 |
DE50106929D1 (de) | 2005-09-08 |
US6656572B2 (en) | 2003-12-02 |
US20010021442A1 (en) | 2001-09-13 |
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