EP0432506B1 - Thermotransferfolie zur Direktbebilderung eines Druckformzylinders - Google Patents

Thermotransferfolie zur Direktbebilderung eines Druckformzylinders Download PDF

Info

Publication number
EP0432506B1
EP0432506B1 EP90121868A EP90121868A EP0432506B1 EP 0432506 B1 EP0432506 B1 EP 0432506B1 EP 90121868 A EP90121868 A EP 90121868A EP 90121868 A EP90121868 A EP 90121868A EP 0432506 B1 EP0432506 B1 EP 0432506B1
Authority
EP
European Patent Office
Prior art keywords
thermal transfer
layer
transfer foil
substance
foil according
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
EP90121868A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0432506A2 (de
EP0432506A3 (en
Inventor
Josef Dr. Schneider
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0432506A2 publication Critical patent/EP0432506A2/de
Publication of EP0432506A3 publication Critical patent/EP0432506A3/de
Application granted granted Critical
Publication of EP0432506B1 publication Critical patent/EP0432506B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1091—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by physical transfer from a donor sheet having an uniform coating of lithographic material using thermal means as provided by a thermal head or a laser; by mechanical pressure, e.g. from a typewriter by electrical recording ribbon therefor

Definitions

  • the invention relates to a thermal transfer film for the direct imaging of a printing form cylinder by means of a pixel transfer unit working with selective heat transfer according to the preamble of patent claim 1.
  • the invention has for its object to develop a generic thermal transfer film so that this distance and pressure fluctuations between thermal print head and printing form cylinder surface compensates.
  • This object is achieved in that a layer of foamable material is arranged between the film substrate and the fusible substance, the response temperature for the foaming process is greater than the melting temperature of the substance.
  • a thermal transfer film denoted overall by 4, is drawn between a printing form cylinder 1 and an image transfer unit 3 equipped with a plurality of individually activatable heating elements 2 by means of a transport device consisting of two coils 5, 6.
  • a layer 8 of material that can be foamed under the action of heat is arranged between substrate 9 and fusible substance 7, the response temperature for the foaming process being greater than the melting temperature of substance 7.
  • a separating layer 10 is additionally arranged between a layer 8 'of foamable material and a layer 7 of a fusible substance 7', which promotes the detachment of the molten substance 7 '.
  • the carrier layer 9 is made of a material which is dimensionally stable in the longitudinal and transverse directions and is only slightly compressible in thickness and has good thermal conductivity.
  • the layer 8 made of foamable material consists for example of a thermoplastic or a mixture containing a thermoplastic, and a blowing agent.
  • the blowing agent concentration is 0.3-1.5%, preferably 0.6-1%.
  • the mass is spread onto the substrate 9, e.g. Polyethylene glycol terephthalic acid ester film, applied as layer 8 of 0.002-0.01 mm, preferably 0.002-0.004 mm, in thickness.
  • a layer 8 with a defined moisture content e.g. 200 g of cellulose (molecular weight 1100) are stirred into 1 l of water with the addition of 0.01% carboxymethyl cellulose (degree of substitution 0.5).
  • the mixture is brought to pH 6 with NAOH and mixed in a ball mill for 3 hours.
  • the mixture as layer 8 is coated onto a polyester film hydrophilized by corona discharge as substrate 9 and knife-coated. After predrying with hot air to about 60% dye content, the film coated in this way is brought to 3-4% residual moisture via press and drying rollers and subsequent hot air treatment. The residual moisture is then set to 8% in a spray system.
  • the finished layer 8 has a thickness of 6 microns.
  • An oleophilic layer 8 of dispersion as described above can then be applied in a prescribed manner.
  • the separating layer 10 has good non-stick properties on the side facing the coating 7 in order to facilitate the detachment of molten substance parts.
  • the meltable substance has oleophilic properties.
  • the printing form cylinder 1 in the unimaged state, has a surface with a continuously hydrophilic property.
  • Plasma or flame sprayed ceramic or metallic surfaces such as chrome, copper, etc., which, owing to its surface roughness, exert a greater adhesive force on the molten substance 7, 7 'than the layers 8 or 10.
  • the pixel transmission unit 3 receives data for an illustration of the printing form cylinder 1 from a memory (not shown). According to this data, the heating elements 2 opposite each other on the back of the thermal transfer film 4 are heated by supplying energy at the level of the image-guiding parts of the printing form cylinder 1. The heat given off by the head of the heating elements 2 successively penetrates the substrate 9 or 9 ', the layer 8 or 8', the separating layer 10 which may be present and melts a narrowly defined area out of the substance 7, 7 '.
  • part 7 a of the substance 7 is accepted by the cold surface of the printing form cylinder 1 and solidifies there.
  • the substance parts 7 a mark the color-guiding image areas on the surface of the printing form cylinder 1 due to their oleophilic property during later printing.
  • the temperature continues to rise until the response temperature of the layer 8, 8' is reached.
  • the layer 8, 8 'foams interrupts the further supply of heat due to its increased strength, which is essentially due to air bubbles formed during foaming with poor thermal conductivity, and at the same time presses the molten substance 7, 7' against the surface of the printing form cylinder 1 where it sticks and freezes.
  • gas or water vapor bubbles form, the effect of which is analogous to that of the foamed layer 7.
  • the water vapor bubble is re-formed each time it cools down, the water condenses out, so that there is the additional advantage here shows that the rewound film has no bumps and is easier to handle.
  • the sharpness of the contour of the image areas marked on the surface of the printing form cylinder 1 is not the edge sharpness of the foaming area, but the edge sharpness of the melted area in the substance 7, 7 'is decisive.
  • the foamable intermediate layer 8 can also be used to advantageously compensate for larger dimensional deviations of all components involved in the range up to about one millimeter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
EP90121868A 1989-12-14 1990-11-15 Thermotransferfolie zur Direktbebilderung eines Druckformzylinders Expired - Lifetime EP0432506B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3941303 1989-12-14
DE3941303A DE3941303C1 (enrdf_load_stackoverflow) 1989-12-14 1989-12-14

Publications (3)

Publication Number Publication Date
EP0432506A2 EP0432506A2 (de) 1991-06-19
EP0432506A3 EP0432506A3 (en) 1991-10-16
EP0432506B1 true EP0432506B1 (de) 1994-09-21

Family

ID=6395458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90121868A Expired - Lifetime EP0432506B1 (de) 1989-12-14 1990-11-15 Thermotransferfolie zur Direktbebilderung eines Druckformzylinders

Country Status (5)

Country Link
US (1) US5382964A (enrdf_load_stackoverflow)
EP (1) EP0432506B1 (enrdf_load_stackoverflow)
JP (1) JP2999243B2 (enrdf_load_stackoverflow)
CA (1) CA2027332C (enrdf_load_stackoverflow)
DE (2) DE3941303C1 (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881645A (en) * 1992-09-10 1999-03-16 Lenney; John Richard Method of thermally spraying a lithographic substrate with a particulate material
DE4342954C2 (de) * 1993-12-16 1998-01-22 Roland Man Druckmasch Verfahren zum Herstellen und Löschen einer löschbaren Hochdruckform, Vorrichtung zur Durchführung des Verfahrens und deren Verwendung
EP0737133B1 (de) * 1993-12-27 1998-07-29 Hoechst Aktiengesellschaft Thermisches auftragsverfahren für hydrophile schichten auf hydrophoben substraten und verwendung so beschichteter substrate als trägerkörper für offsetdruckplatten
US5816161A (en) * 1994-07-22 1998-10-06 Man Roland Druckmaschinen Ag Erasable printing plate having a smooth pore free metallic surface
US5819661A (en) * 1995-01-23 1998-10-13 Presstek, Inc. Method and apparatus for laser imaging of lithographic printing members by thermal non-ablative transfer
GB2334727A (en) 1998-02-28 1999-09-01 Horsell Graphic Ind Ltd Planographic printing member
DE19937478B4 (de) * 1999-08-07 2004-08-19 Man Roland Druckmaschinen Ag Thermotransferfolie zur laserinduzierten Beschichtung einer Metalloberfläche
JP3422754B2 (ja) * 2000-05-31 2003-06-30 三菱重工業株式会社 印刷用版材の作製方法、再生方法及び印刷機
DE10054284B4 (de) * 2000-11-02 2010-04-08 Manroland Ag Verfahren zur Behandlung einer löschbaren lithographischen Druckform
DE10063819B4 (de) * 2000-12-21 2006-02-02 Man Roland Druckmaschinen Ag Maskenerstellung zur Herstellung einer Druckform
DE102008043582A1 (de) * 2008-11-07 2010-05-12 Evonik Oxeno Gmbh Verfahren zur Herstellung von 6-Chlorodibenzo(d,f) (1,3,2)-dioxaphosphepin

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248178C2 (de) * 1982-12-27 1987-02-19 Forschungsgesellschaft Druckmaschinen E.V., 6000 Frankfurt Bildmäßige Beschichtung von Druckformen für den Flachdruck
US4565737A (en) * 1983-05-02 1986-01-21 Canon Kabushiki Kaisha Heat-sensitive transfer material
JPS6141547A (ja) * 1984-08-02 1986-02-27 Toppan Printing Co Ltd 印刷版の製造方法
JPS61110593A (ja) * 1984-11-02 1986-05-28 Canon Inc 感熱転写材
JPS61162392A (ja) * 1985-01-11 1986-07-23 Alps Electric Co Ltd 感熱転写媒体
JPS63751A (ja) * 1986-06-20 1988-01-05 Fujitsu Ltd プリフエツチ制御方式
JPS6360751A (ja) * 1986-09-01 1988-03-16 Matsushita Electric Ind Co Ltd 印刷用マスタ−及びその製造方法
JPS63214481A (ja) * 1987-03-02 1988-09-07 Canon Inc 感熱転写材
US4897310A (en) * 1987-12-15 1990-01-30 Siemens Aktiengesellschaft Inking ribbon for transferring color under the influence of heat
DE3834270A1 (de) * 1988-10-08 1990-04-12 Roland Man Druckmasch Verfahren zur herstellung von druckformen
US5191834A (en) * 1988-10-14 1993-03-09 Man Roland Druckmaschinen Ag Printing system with printing form having a ferro-electric layer
US5072671A (en) * 1988-11-09 1991-12-17 Man Roland Druckmaschinen Ag System and method to apply a printing image on a printing machine cylinder in accordance with electronically furnished image information

Also Published As

Publication number Publication date
EP0432506A2 (de) 1991-06-19
CA2027332C (en) 1996-10-15
US5382964A (en) 1995-01-17
EP0432506A3 (en) 1991-10-16
JPH03189151A (ja) 1991-08-19
JP2999243B2 (ja) 2000-01-17
DE3941303C1 (enrdf_load_stackoverflow) 1990-12-13
CA2027332A1 (en) 1991-06-15
DE59007252D1 (de) 1994-10-27

Similar Documents

Publication Publication Date Title
EP0432506B1 (de) Thermotransferfolie zur Direktbebilderung eines Druckformzylinders
DE19530284C2 (de) Verfahren und Vorrichtungen zur Übertragung von Druckfarbe
DE69307593T2 (de) Etikette zur Befestigung an einem Reifen und Material dieser Etikette
EP0033776A2 (de) Verfahren und Vorrichtung zum Färben oder Bedrucken von bahnförmigen Gegenständen, insbesondere Skibelägen, sowie derartige Gegenstände
DE2852615A1 (de) Verfahren zur herstellung eines abmessungsstabilen dekorativen fussbodenbelags
DE1471678B2 (de) Verfahren und Vorrichtung zum Bedrucken oder Verzieren von Oberflächen harter Gegenstände mit einem dicken Farbauftrag
DE2750630C2 (de) Verfahren zur Herstellung eines druckenden Materials aus Schaumgummi mit zahlreichen offenen Poren
EP0963287B1 (de) Form für das rotative bedrucken, beschichten oder prägen von bahnförmigen materialien und verfahren zur herstellung der form
DE1671501B2 (de) Einheit und verfahren zur gleichzeitigen herstellung von hoch- und tiefdruckformen auf thermographischem wege
DE3830341A1 (de) System fuer den permeationsdruck auf kunststoff-formkoerpern
DE3886206T2 (de) Tintenzylinder für eine druckpresse und verfahren zur herstellung.
EP3571052B1 (de) Verfahren zum bedrucken von unter thermischer belastung sich verformenden folien
DE69027149T2 (de) Walzen zur thermischen Markierung von Mineralfaserbahnen und Verfahren
EP0368177B1 (de) Verfahren und Vorrichtung zur Herstellung einer Tiefdruckform
DE69225178T2 (de) Verfahren zur herstellung eines elektronischen elements
DE2607695B2 (de) Verfahren zum praegen einer dekorativen materialbahn und dekoratives bahnmaterial
DE3100361A1 (de) Farbwalze und verfahren zu deren herstellung
EP0368180B1 (de) Verfahren zur Bebilderung eines Druckformzylinders
DE29706932U1 (de) Feuchtwerk für eine Offsetdruckmaschine
DE3833711C2 (enrdf_load_stackoverflow)
DE69204596T2 (de) Verfahren und Vorrichtung zur Herstellung eines Heissschmelzproduktes.
EP0368178B1 (de) Verfahren zur direkten Bebilderung eines Druckformzylinders
DE4119111A1 (de) Verfahren zur herstellung von druckformen
DE10051230B4 (de) Verfahren zur Bearbeitung einer bahnförmigen oder bogenförmigen Ware
EP0678379B1 (de) Schichtförmiger Druckzylinder

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19911004

17Q First examination report despatched

Effective date: 19930615

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 59007252

Country of ref document: DE

Date of ref document: 19941027

EAL Se: european patent in force in sweden

Ref document number: 90121868.5

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950106

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

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20031030

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20031103

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041116

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 NON-PAYMENT OF DUE FEES

Effective date: 20050601

EUG Se: european patent has lapsed
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20050601

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: M.A.N.-ROLAND DRUCKMASCHINEN AKTIENGESELLSCHAFT

Free format text: M.A.N.-ROLAND DRUCKMASCHINEN AKTIENGESELLSCHAFT#MUEHLHEIMERSTRASSE 341#D-63075 OFFENBACH A.M. (DE) -TRANSFER TO- M.A.N.-ROLAND DRUCKMASCHINEN AKTIENGESELLSCHAFT#MUEHLHEIMERSTRASSE 341#D-63075 OFFENBACH A.M. (DE)

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: MANROLAND AG

Free format text: M.A.N.-ROLAND DRUCKMASCHINEN AKTIENGESELLSCHAFT#MUEHLHEIMERSTRASSE 341#D-63075 OFFENBACH A.M. (DE) -TRANSFER TO- MANROLAND AG#MUEHLHEIMER STRA?E 341#63075 OFFENBACH (DE)

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20091124

Year of fee payment: 20

Ref country code: DE

Payment date: 20091120

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20091119

Year of fee payment: 20

Ref country code: FR

Payment date: 20091201

Year of fee payment: 20

Ref country code: IT

Payment date: 20091126

Year of fee payment: 20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20101114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20101114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20101115