EP0562968A1 - Verfahren zum Beschichten eines flachen metallischen Substrates mit Fluorkohlenstoffharz - Google Patents

Verfahren zum Beschichten eines flachen metallischen Substrates mit Fluorkohlenstoffharz Download PDF

Info

Publication number
EP0562968A1
EP0562968A1 EP93400779A EP93400779A EP0562968A1 EP 0562968 A1 EP0562968 A1 EP 0562968A1 EP 93400779 A EP93400779 A EP 93400779A EP 93400779 A EP93400779 A EP 93400779A EP 0562968 A1 EP0562968 A1 EP 0562968A1
Authority
EP
European Patent Office
Prior art keywords
coating
screen
support
screen printing
fluorocarbon resin
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
Application number
EP93400779A
Other languages
English (en)
French (fr)
Other versions
EP0562968B1 (de
Inventor
Claudine Gardaz
Jean-Pierre Buffard
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.)
SEB SA
Original Assignee
SEB SA
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 SEB SA filed Critical SEB SA
Publication of EP0562968A1 publication Critical patent/EP0562968A1/de
Application granted granted Critical
Publication of EP0562968B1 publication Critical patent/EP0562968B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
    • B05D1/42—Distributing applied liquids or other fluent materials by members moving relatively to surface by non-rotary members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2506/00—Halogenated polymers
    • B05D2506/10—Fluorinated 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49995—Shaping one-piece blank by removing material

Definitions

  • the present invention relates to a method of applying a coating based on fluorocarbon resin on a flat metal support, intended in particular after curing the coating to be stamped in the form of a culinary container.
  • the most commonly used method for applying a coating of fluorocarbon resin such as polytetrafluoroethylene consists in spraying onto the flat support having undergone prior chemical attack, an aqueous dispersion of particles of fluorocarbon resin.
  • the coating thus obtained adheres perfectly to the metal support thanks in particular to the microcavities formed thereon by chemical attack.
  • the spraying method has the disadvantage of causing a loss of fluorocarbon resin at least equal to 50% and pollution of the environment.
  • Another method consists in applying the coating to the flat support by means of a roller coated with a paste based on fluorocarbon resin.
  • This technique makes it possible to reduce the waste of fluorocarbon resin, but does not make it possible to obtain a quality coating. Indeed, the coating obtained is not perfectly smooth, but has undulations due to the passage of the roller. Therefore, this coating is sensitive to cracks.
  • the object of the present invention is to remedy the drawbacks of the processes known above, by creating a process which makes it possible both to obtain a smooth coating, adhering perfectly to the metal support and generating neither waste nor pollution of the 'environment.
  • the method of applying a coating based on fluorocarbon resin on a flat metal support is characterized in that this coating is applied continuously on the support by screen printing.
  • a screen printing screen is used to apply the coating, the part of which comprising meshes has a contour which is superimposed on the external contour of the planar metallic support.
  • the process covered by the present invention does not decorate a coating of already baked fluorocarbon resin, but produces a continuous coating directly on the metal support.
  • the effect of the doctor blade provides a perfectly smooth coating and a uniform and controllable thickness.
  • the method according to the invention makes it possible to avoid any wastage of fluorocarbon resin, since the latter is applied only to the surface of the support and not outside of it.
  • the screen printing screen shown in FIG. 1 comprises a plate 1 having in its central part a circular zone 2 comprising meshes, constituted by a mesh of stainless steel or polyester with very fine meshes, the openings of which are for example between 50 and 200 ⁇ m.
  • a doctor blade 3 for example made of polyurethane elastomer.
  • the screen printing screen 1 is placed as indicated in FIG. 2, above a metal support 4, consisting for example of an aluminum disc, having previously undergone a chemical attack.
  • the circular edge 2a of the zone 2 comprising meshes of the screen corresponds exactly to the circular edge 4a of the support 4 in the form of a disc.
  • Zone 2 comprising meshes is devoid of any mask and extends a few tens of microns above the surface of the metal support 4.
  • a composition based on fluorocarbon resin for example formed from an aqueous dispersion of polytetrafluoroethylene mixed with a thickener to obtain a paste having a certain viscosity, and containing fillers (for example flakes of mica) and pigments.
  • the doctor blade 3 is moved over the area 2 comprising meshes, in order to spread the pasty composition 5 and force it through the meshes of the screen.
  • the pasty composition 5 is thus deposited on the surface of the support, forming on the latter a continuous coating of uniform thickness in the wet state of between 5 and 30 ⁇ m per layer.
  • the coating obtained is perfectly smooth, uniform, of constant thickness and has excellent adhesion to the support.
  • the thickener used during the implementation of the screen printing application process can be chosen, for example, from acrylic or methacrylic copolymers, bentones, polysaccharides, alginates, carboxymethylcelluloses and guaranates.
  • the screen-coated disc obtained according to the process according to the invention can be stamped in the form of a culinary container.
  • the coating of fluorocarbon resin is removed in the area of the outer surface of the bottom of the container, that is to say the area intended to be exposed to heat.
  • This elimination also represents a waste of raw material and energy and generates additional pollution.
  • the method can also be applied to the coating by screen printing of a previously sandblasted aluminum support on which one or two layers of bonding primer are applied, then one or more finishing layers.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
EP93400779A 1992-03-27 1993-03-25 Verfahren zum Beschichten eines flachen metallischen Substrates mit Fluorkohlenstoffharz Expired - Lifetime EP0562968B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9203730 1992-03-27
FR9203730A FR2689037B1 (fr) 1992-03-27 1992-03-27 Procede d'application d'un revetement a base de resine fluorocarbonee sur un support metallique plan.

Publications (2)

Publication Number Publication Date
EP0562968A1 true EP0562968A1 (de) 1993-09-29
EP0562968B1 EP0562968B1 (de) 1996-08-14

Family

ID=9428167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93400779A Expired - Lifetime EP0562968B1 (de) 1992-03-27 1993-03-25 Verfahren zum Beschichten eines flachen metallischen Substrates mit Fluorkohlenstoffharz

Country Status (4)

Country Link
US (1) US5383264A (de)
EP (1) EP0562968B1 (de)
DE (1) DE69303955T2 (de)
FR (1) FR2689037B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2982508A1 (fr) * 2011-11-14 2013-05-17 Peugeot Citroen Automobiles Sa Procede de revetement par serigraphie d'une piece de revolution

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2744129B1 (fr) 1996-01-29 1998-04-10 Seb Sa Revetement anti-adhesif pour ustensile culinaire en aluminium
AUPR033400A0 (en) * 2000-09-25 2000-10-19 Kahn, Stephen R Applied friction surface (afs)
FR2869817B1 (fr) * 2004-05-04 2008-05-30 Seb Sa Procede de fabrication d'un revetement anti-adhesif et d'un article culinaire ainsi revetu
EP2169011A1 (de) * 2008-09-24 2010-03-31 Looser Holding AG Verdicker für sinter- oder aufschmelzfähige Polymerdispersionen
US10542951B2 (en) 2015-07-23 2020-01-28 General Electric Company Systems, methods, and devices for simplified high quality imaging of biopsy samples on a mammography machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB788791A (en) * 1954-11-05 1958-01-08 Glacier Co Ltd Plain bearings and composite bearing materials
EP0188958A2 (de) * 1985-01-23 1986-07-30 Seb S.A. Verfahren zum Herstellen einer Dekoration auf einem Polytetrafluoräthylenüberzug und hiervon betroffene Küchengeräte
WO1991005022A2 (en) * 1989-10-06 1991-04-18 Ferro Corporation Thermoplastic coating compositions and process using same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6389185A (ja) * 1986-09-30 1988-04-20 長谷川刃物株式会社 鋏に非粘着性被膜を形成する方法
JPH0717869B2 (ja) * 1990-01-22 1995-03-01 連田 田代 スクリーンプリント用インキ及びこれによりプリントされた製品

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB788791A (en) * 1954-11-05 1958-01-08 Glacier Co Ltd Plain bearings and composite bearing materials
EP0188958A2 (de) * 1985-01-23 1986-07-30 Seb S.A. Verfahren zum Herstellen einer Dekoration auf einem Polytetrafluoräthylenüberzug und hiervon betroffene Küchengeräte
WO1991005022A2 (en) * 1989-10-06 1991-04-18 Ferro Corporation Thermoplastic coating compositions and process using same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPIL Section Ch, Week 07, 1991 Derwent Publications Ltd., London, GB; Class A04, AN 91-049060 & JP-A-63 089 185 (HASEGAWA HAMOKO) 20 Avril 1988 *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 496 (C-894)16 Décembre 1991 & JP-A-32 17 470 ( RENTA TASHIRO ) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2982508A1 (fr) * 2011-11-14 2013-05-17 Peugeot Citroen Automobiles Sa Procede de revetement par serigraphie d'une piece de revolution

Also Published As

Publication number Publication date
FR2689037B1 (fr) 1995-06-30
FR2689037A1 (fr) 1993-10-01
DE69303955T2 (de) 1996-12-19
EP0562968B1 (de) 1996-08-14
US5383264A (en) 1995-01-24
DE69303955D1 (de) 1996-09-19

Similar Documents

Publication Publication Date Title
EP2736659B1 (de) Kochutensil mit einer mikrostrukturierten hitzestabilen beschichtung und verfahren zur herstellung eines solchen
EP0188958B1 (de) Verfahren zum Herstellen einer Dekoration auf einem Polytetrafluoräthylenüberzug und hiervon betroffene Küchengeräte
EP0786312B1 (de) Verfahren zur Behandlung einer metallischen Oberfläche und Herstellung eines Kochgeschirrs
KR20170122828A (ko) 세라믹 및/또는 금속 및/또는 폴리머 재료로 제조된 경질 기재 및 플루오로카본 수지를 함유한 비점착성 코팅을 포함하는 조리 기구
EP0562968B1 (de) Verfahren zum Beschichten eines flachen metallischen Substrates mit Fluorkohlenstoffharz
EP3077210A1 (de) Verfahren zum dekorieren eines gegenstandes mit hitzestabiler beschichtung mittels flexodruck
EP0127489A1 (de) Verfahren zum Emaillieren des Bodens eines Kochbehälters und dementsprechender Kochbehälter
FR3039091A1 (fr) Inclusion d'oxydes de terres rares dans un revetement a base de resine fluorocarbonee
FR2954074A1 (fr) Article culinaire comprenant un revetement externe antiadhesif, comportant un decor au niveau du fond externe
EP0914972B1 (de) Verfahren zur Herstellung einer dekorativen Fliese imitierende Platte und durch das Verfahren hergestellte Platte
EP1742748A1 (de) Verfahren zur herstellung einer antihaftbeschichtung und zusammensetzung einer ersten schicht
FR2705924A1 (fr) Procédé de réalisation de motifs sur des objets, notamment en céramique.
KR100296070B1 (ko) 다색 문양이 있는 조리기구
JPH0767784A (ja) 調理器の調理プレート
EP0457678A1 (de) Bügeleisensohle mit einer Antihaftschicht
FR2716143A1 (fr) Procédé pour former un décor sur un ustensile culinaire.
US5707688A (en) Multi-color patterned cookware
JPS602194B2 (ja) 化粧板
GB2118458A (en) Coating a metal surface so as to render it non-stick and abrasion-resistant
FR2716100A1 (fr) Ustensile culinaire et procédé de réalisation de cet ustensile.
FR2496518A1 (fr) Procede d'assemblage d'un fond composite d'ustensile culinaire en acier inoxydable
EP0987071B1 (de) Verfahren zur Erhöhung der Radiations- und der Verschleissbeständigkeit einer adhäsiven Beschichtigungszusammensetzung auf einer Aluminiumplatte
FR2696649A3 (fr) Procédé pour décorer un ski.
FR2606793A1 (fr) Procede pour emailler le fond d'un recipient culinaire en aluminium ou alliage d'aluminium et recipient culinaire s'y rapportant
FR2708265A1 (fr) Procédé pour la réalisation d'un revêtement sur des objets en terre cuite, en plâtre ou en faïence.

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: 19930331

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE IT

17Q First examination report despatched

Effective date: 19941227

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SEB S.A.

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE IT

REF Corresponds to:

Ref document number: 69303955

Country of ref document: DE

Date of ref document: 19960919

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

Ref country code: IT

Payment date: 20080327

Year of fee payment: 16

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

Ref country code: DE

Payment date: 20080407

Year of fee payment: 16

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 NON-PAYMENT OF DUE FEES

Effective date: 20091001

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

Ref country code: IT

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

Effective date: 20090325