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WO1996009966A1 - Procede et machines de decoration de recipients de cuisson - Google Patents

Procede et machines de decoration de recipients de cuisson Download PDF

Info

Publication number
WO1996009966A1
WO1996009966A1 PCT/EP1995/003740 EP9503740W WO9609966A1 WO 1996009966 A1 WO1996009966 A1 WO 1996009966A1 EP 9503740 W EP9503740 W EP 9503740W WO 9609966 A1 WO9609966 A1 WO 9609966A1
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
drum
decoration
ribbon
machine
Prior art date
Application number
PCT/EP1995/003740
Other languages
English (en)
Inventor
Franco Libe'
Original Assignee
Rondine Italia S.P.A.
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 Rondine Italia S.P.A. filed Critical Rondine Italia S.P.A.
Priority to DE69502961T priority Critical patent/DE69502961T2/de
Priority to AU36983/95A priority patent/AU3698395A/en
Priority to EP95934626A priority patent/EP0783438B1/fr
Publication of WO1996009966A1 publication Critical patent/WO1996009966A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/0015—Preparing the labels or articles, e.g. smoothing, removing air bubbles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/08—Label feeding
    • B65C9/18—Label feeding from strips, e.g. from rolls
    • B65C9/1865—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip
    • B65C9/1869—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip and being transferred directly from the backing strip onto the article
    • B65C9/1873—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip and being transferred directly from the backing strip onto the article the transfer involving heating means, e.g. for decals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/20—Gluing the labels or articles
    • B65C9/24—Gluing the labels or articles by heat
    • B65C9/25—Gluing the labels or articles by heat by thermo-activating the glue

Definitions

  • the subject of the present invention is a method of decorating cooking vessels such as pots, saucepans, frying pans, baking-pans, roasters, etc., and machines for implementing the method.
  • the prior art provides for the use of silk-screen- printing or flexographic printing methods for decorating cooking vessels.
  • the surface of the vessel to be decorated is inked by means of the yarn of a screen which is left permeable to the ink in the regions of images to be reproduced and impermeable in the other regions.
  • the surface to be decorated is inked by means of a roller having rais- portions which reproduce the decoration.
  • the decoration can be printed by silk-screen or flexographic techniques and, in both cases, is printed on the disc before drawing.
  • the subsequent drawing deforms the decoration and this considerably limits the selection of the type of decoration which, naturally, must not suffer aesthetically as a result of the deformation.
  • several very precise silk-screen-printing or flexographic passes are necessary and this considerably affects production times and costs .
  • the silk-screen technique is used but, unlike frying pans, these are silk-screen printed on their already-formed cylindrical lateral surfaces by the rotation of the saucepan and the translation of the screen. In this case the decoration is not deformed but, if a multi-coloured decoration is desired, several very precise silk-screen-printing passes are always necessary, with consequent long production times and high production costs.
  • the UK Patent Application GB-A-2131744 describes that it is known to apply decorative designs to hollow-ware such as cups, mugs and the like, using heat releasable transfers mounted on a carrier; the hollow- are is heated to a temperature of approximately 140°C so that it is sufficiently hot to melt the heat releasable transfer and the transfer is then applied to the surface of the hollow-ware item.
  • This method overcome the aforesaid inconveniences of the other methods .
  • the cooking vessels are subject in use to high temperatures and the decorative design applied on the surface of the cooking vessel using a heat releasable transfer would be damaged.
  • the object of the present invention is to prevent the aforementioned problems, using a heat releasable transfer without the aforesaid drawback of the same.
  • the vessel is coated with silicone resin at least on the surface to be decorated;
  • the carrier is brought into contact with the coated surface of the vessel to be decorated, heat being supplied so as to transfer the decoration to the coated surface of the vessel.
  • the vessel may be formed from a plate and the silicone resine is applied to the plate before forming the vessel. Also the decoration may be applied to the plate before forming the vessel .
  • Figure 1 is a front perspective view of a first machine for decorating cooking vessels
  • Figure 2 is a rear perspective view of a portion of said first machine
  • Figures 3 and 4 show the operation of a device for regulating said first machine.
  • Figure 5 is a front perspective view of a second machine for decorating cooking vessels
  • Figure 6 is a rear, enlarged, perspective view of said second machine
  • Figure 7 is a front perspective view of a third machine for decorating plates from which cooking vessels are formed.
  • An example c method of decorating a cooking vessel formed from a plate comprises the following steps.
  • the plate is coated with silicone resine by known technique and is heated to a temperature comprised between 130°C and 200°C, preferably 170°C.
  • the plate is allowed to cool to room temperature and is moulded by known technique to form the vessel .
  • the vessel is heated to a temperature comprised between 80°C and 100°C, preferably 90°C.
  • a carrier of polythene paper, carrying a heat releasable decoration is brought into contact with the surface of the vessel to be decorated.
  • Heat is supplied to transfer the decoration to the coated surface of the vessel : the transfer temperature is comprised between 100°C and 120°C, preferably 110°C.
  • the vessel is then heated to a temperature comprised between 180°C and 220°C, preferably 200°C, to fix the silicone resine coating and the decoration on the vessel.
  • Another example of method of decorating a cooking vessel formed from a plate comprises the following steps.
  • the plate is coated with silicone resine by known technique and is heated to a temperature comprised between 80°C and 100°C, preferably 90°C.
  • a carrier of polythene paper, carrying a heat releasable decoration is brought into contact with the surface of the plate.
  • Heat is supplied to transfer the decoration to the coated surface of the plate: the transfer temperature is comprised between 100°C and 120°C, preferably 110°C.
  • the plate is heated to a temperature comprised between 180°C and 220°C, preferably 200°C, to fix the silicone resine coating and the decoration on the plate.
  • the plate is allowed to cool to room temperature and is moulded by known technique to form the vessel .
  • the decoration is applied to the already-formed vessel and there is therefore no deformation of the decoration as a result of the forming of the vessel.
  • a heat releasable multi-coloured decoration can be applied to the carrier and then transferred to the vessel or to the plate in a single pass and not in several passes which, above all, avoids the precision working required by several passes.
  • the silicone resine coating enables the decoration to be fixed to the vessel firmly and in an aesthetically optimal manner.
  • the heat treatments at said specific temperatures enhances such features.
  • the three machines for the heat transfer of the decoration will be thereinafter described, the first and second of which refer to the first example of method described above and the third of which refers to the second example of method described above.
  • the first machine shown in the Figures 1,2,3,4 and generally indicated 10, is suitable for decorating pots and is vertically operating.
  • the machine comprises a support structure 11 for supporting the various members of the machine.
  • a circular table 12, disposed vertically, is mounted on the support structure 11 and is rotated by an electric motor 13.
  • the table 12 carries an annular set of cylindrical forms 14 which can rotate freely about their own axes and each of which can receive a respective pot 15.
  • each form 14 is screwed onto a spindle 16 which is connected to the table 12 axially but can rotate freely.
  • the interior of each form 14 has an annular cavity 17 which is open at the rear; the front portion of the form has a plurality of through-holes 18 which open into the cavity 17.
  • An electrical resistance 19 having, essentially, the configuration of a cylindrical helix, is fixed to the table 12 near each spindle 16, together with a rod-shaped temperature sensor 20.
  • the electrical resistance 19 is wound around the spindle 16 and is housed in the cavity 17 in order to heat the form 14 and the temperature sensor 20 also extends into the cavity 17 to detect the temperature of the form 14.
  • a control box 21 fixed to the central portion of the table 12 has a series of adjustment knobs 22, each of which enables the temperature of a respective form 14 to be regulated by the switching on or off of the electrical resistance 19 and on the basis of the temperature value supplied by the sensor 20.
  • the adjustment device 26 comprises a handwheel 27 which is connected by means of gears to a nut which is restrained axially and is engaged by a screw 28; the latter is connected to the arm 23 by means of a pin-and-slot connection 29; the gears and the nut are not visible in the drawings.
  • the rotation of the handwheel 27 brings about rotation of the nut and hence axial displacement of the screw 28 which in turn brings about rotary displacement of the arm 23 about the hinge point 24, as shown in Figures 3, 4.
  • This supply unit comprises a feed spindle 31 mounted for rotating on one end of the arm 23 and a take-up spindle 32 which is mounted on the other end of the arm 23 and is rotated by an electric motor 33; the rotation of the feed spindle 31 is braked by a friction device not visible in the drawings.
  • the new reel of ribbon 30 is positioned on the feed spindle 31 and the ribbon is unwound therefrom and wound onto the take-up spindle 32 by means of the electric motor 33.
  • a series of rollers 34 defines a path for the ribbon 30 between the spindles 31, 32 such as to lead a portion of the ribbon along a horizontal plane parallel to a plane tangential to the circular table 12.
  • a drum 35 also mounted on the arm 23, has a rubberized cylindrical outer covering 36 and is disposed vertically so that the horizontal plane mentioned above in relation to the ribbon 30 is tangential to the rubberized covering 36.
  • the drum 35 is rotated by an electric motor 37.
  • a substantially semi-annular case 38 is also mounted on the arm 23 above the drum 35. Fixed inside the case 38, along its half circumference and near the rubberized covering 36 is a series of infra-red lamps 39 which heat the covering.
  • a temperature sensor 40 also mounted on the case 38 near the rubberized covering 36, enables the rubberized covering to be kept at a predetermined temperature.
  • the machine is completed by a device 41 for operating and controlling the members of the machine described above, apart from the operation and control of the heating of the forms 14 which, as described above, is effected by means of the control box 21.
  • the machine 10 described and illustrated operates as follows.
  • the forms 14 and the rubberized covering 36 of the drum 35 are heated to and kept at a predetermined temperature by the means described above.
  • the pots 15 to be decorated are then fitted on the forms 14; during this operation, the holes 18 allow the air which is trapped between the pot and the form and which would otherwise hold back the operation, to escape. Once fitted, the pots 15 are heated by the heat of the forms.
  • the electric motor 13 When the electric motor 13 is operated, the table 12 is rotated until the cylindrical outer surface of the first pot to be decorated is in tangential contact with the ribbon 30. In this position, the drum 35, which is kept rotating continuously by the electric motor 37, pushes the ribbon 30 onto the cylindrical surface of the pot with its rubberized covering 36.
  • the electric motor 33 rotates the take-up spindle 32 in synchronism with the drum 35, that is, in a manner such that the ribbon 30 advances at a speed equal to the peripheral speed of the drum 35.
  • the drum 35 rotates the pot, given that the form on which the pot is fitted is free to rotate.
  • the synchronous movement of the drum 35, of the pot entrained by the drum, and of the ribbon 30 enable the decoration to be applied correctly along the entire surface of the pot.
  • the electric motor 33 stops and the electric motor 13 is simultaneously switched on and rotates the table 12 until the cylindrical outer surface of the second pot to be decorated is in tangential contact with the ribbon 30.
  • the decoration cycle is repeated exactly as described above for the first pot. This process can be carried out continuously with the removal of the decorated pots from the forms and the placing thereon of new pots to be decorated.
  • the pressure with which the drum 35 presses the ribbon 30 onto the pot can be adjusted by means of the handwheel 27 which brings about a downward or upward rotary displacement of the arm 23 about the hinge point 24 and thus brings about an equal displacement of the drum 35 mounted on the arm so as to increase or decrease the pressure.
  • Naturally other cooking vessels such as saucepans, frying pans, etc. can be decorated in the same manner by variation of the dimensions and/or the shapes of the forms and of the rubberized outer contact surface of the drum.
  • the fact that the drum 35 can be raised or lowered by means of the handwheel 27 permits this adaptation of the machine to vessels of various types since, with vessels of different diameters, the drum 35 will have to be moved correspondingly.
  • the ribbon 30 with the heat releasable decoration is easily obtainable commercially from specialist companies and the decoration may be of any type and may be produced in one or more colours .
  • the temperature of the forms and of the covering of the drum is such that the heat transfer of the decoration is made at a temperature of 110°C.
  • the second machine shown in the Figures 5,6 and generally indicated 50, is also suitable for decorating pots, like the first machine 10, but is horizontally operating.
  • this second machine 50 the elements similar or equivalent to that of the first machine 10 are indicated with the same reference number.
  • the machine 50 operates as the machine 10 with the difference that the table 12 and the drum 35 are disposed and rotate on a horizontal plane.
  • the drum 3 the case 38 and the unit for supplying and collecting the ribbon 30 are mounted on a frame 51 horizontally movable along guide rails 52 towards or away from the table 12.
  • a section 53 of the frame 51, on which the drum 35, the case 38 and said unit are fixed, is further angularly movable to incline the axis of the drum 35 together with the ribbon 30 with respect to the axes of the forms 14. Thanks to these movements of the frame 51 the machine 50 can be adapted to different kind of cooking vessels (vessels of different size, vessels having inclined side walls,etc.) .
  • a transfer apparatus 56 is also provided for transferring the pots 15 from the oven 54 to the machine 50 and from the machine 50 to the oven 55.
  • the ovens 54,55 have each a heating chamber, respectively 57,58, and actuated rollers, respectively 59,60, to move the pots 15 through the oven.
  • the transfer apparatus 56 comprises two parallel, vertically extensible arms 61 mounted on a common support unit 62 horizontally movable along a guide bar 63. Each arm 61 is provided with a suction end 64 to pick up the pots 15.
  • each pot to be decorated is heated to a temperature of 90°C.
  • one arm 61 picks up one pot 15 and transfers it onto one form 14.
  • the machine 50 provides to decorate the pot 15 as seen for the machine 10.
  • the other arm 61 picks up the decorated pot 15 and transfers it to the other oven 55.
  • the pot 15 is heated to a temperature of 200°C.
  • the two arms 61 operate simultaneuosly: when the first arm 61 transfers one pot 15 to be decorated from the oven 54 to a form 14, the other arm 61 transfers another pot 15 already decorated from the form 14 on which is fitted to the other oven 55.
  • the third machine shown in Figure 7 and indicated 70, is intended for heat transfer decoration of a plate from which the cooking vessel is formed, according to the second example of method described above.
  • the machine 70 comprises substantially a plane 71 along which a series of feeding rollers 72 move the plate, indicated 73, through a heat transfer decoration unit 74.
  • This unit 74 comprises a heated drum 75 and a cylinder 76 parallel and operatively associated to the drum.
  • the carrier of the decoration is constituted by a wide coiled ribbon 77 of polythene paper mounted on a feed spindle 78 disposed on one side with respect to the drum 75 and the cylinder 76; on the opposite side a take-up spindle 79 is provided onto which is wound the paper which is unwound from the feed spindle 78; rollers 80 are further provided which define a path between the spindles 78,79 such as to lead a portion of the paper along a horizontal plane parallel to the plane 72 between the drum 75 and the cylinder 76.
  • the machine is completed by a unit 81 for operating and controlling the components of the machine described above.
  • the plate 73 is moved by the rollers 72 through the heat transfer decoration unit 74 in the direction of the arrows and specifically passes and is pressed between the heated drum 75 and the cylinder 76 below the paper carrying the decoration. In this way a transfer occurs of the decoration from the paper to the surface of the plate 74.
  • the plate 73 is rectangular to form a baking-pan.
  • the carrier may be of any configuration and may be made of silicone paper instead of polythene paper. Both polythene paper and silicone paper guarantee a high quality, definition and permanence of the decoration on the vessel.
  • the form-holder table may have any suitable number of forms.
  • the electrical resistances and the infra-red lamps could be replaced by heating means of any type. These resistances and lamps have, however, been found simple and effective.
  • the arm which supports the ribbon-supply and collection unit and the drum, as well as the members used for adjusting the position of the arm could also be replaced by equivalent means.
  • the arm and the members have been found simple and effective in this case also. Analogous considerations can be made for the second machine.
  • drum means any rotating member which can provide the pressure necessary to apply the decoration to the pot.
  • the outer surface of the drum may be of any material suitable for the use described above.
  • the rubberized covering has, however, been found effective .
  • the decoration produced on the vessel or the plate is continuous. It is also possible to consider the application of one or more discrete decorations to the vessel or to the plate in any position, either with a continuous carrier on which the discrete decorations are reproduced and, in this case, the machines illustrated are used, or with discrete carrier which are brought to the surfaces to be decorated one by one and, in this different case, the machines will have to be different.

Landscapes

  • Decoration By Transfer Pictures (AREA)
  • Printing Methods (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

Afin de décorer des récipients de cuisson, on revêt un récipient d'une résine silicone au moins sur la surface à décorer, on fournit un support sur lequel est appliqué un motif décoratif détachable à la chaleur et on met en contact ce support avec la surface revêtue du récipient à décorer, la chaleur étant fournie de manière à transférer le motif sur ladite surface. Le support peut prendre la forme d'un ruban (30). Le récipient (15) est ajusté sur une forme (14) chauffée, un tambour (35), également chauffé, maintient le ruban (30) en contact avec le récipient (15), puis le tambour (35), le récipient (15) et le ruban (30) sont déplacés de manière à ce que s'effectue le transfert du motif décoratif sur le récipient (15). On peut ainsi décorer des récipients (15) de cuisson, de manière aisée, bon marché et permanente, avec tout type de motif.
PCT/EP1995/003740 1994-09-26 1995-09-22 Procede et machines de decoration de recipients de cuisson WO1996009966A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69502961T DE69502961T2 (de) 1994-09-26 1995-09-22 Vorrichtung und verfahren zum dekorieren von kochtöpfen
AU36983/95A AU3698395A (en) 1994-09-26 1995-09-22 A method and machines for decorating cooking vessels
EP95934626A EP0783438B1 (fr) 1994-09-26 1995-09-22 Procede et machines de decoration de recipients de cuisson

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP94830455 1994-09-26
EP94830455.5 1994-09-26

Publications (1)

Publication Number Publication Date
WO1996009966A1 true WO1996009966A1 (fr) 1996-04-04

Family

ID=8218537

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/003740 WO1996009966A1 (fr) 1994-09-26 1995-09-22 Procede et machines de decoration de recipients de cuisson

Country Status (5)

Country Link
EP (1) EP0783438B1 (fr)
AU (1) AU3698395A (fr)
DE (1) DE69502961T2 (fr)
ES (1) ES2120769T3 (fr)
WO (1) WO1996009966A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996029248A1 (fr) * 1995-03-18 1996-09-26 Wolfgang Fiwek Procede et dispositif permettant de decorer des emballages cylindriques comportant des surfaces courbes
EP2279953A1 (fr) * 2009-07-30 2011-02-02 Moss S.r.l. Appareil pour transférer des images sur des objets
JP2017501778A (ja) * 2013-12-03 2017-01-19 セブ ソシエテ アノニム 熱安定性被覆を含むフレキソ印刷による物品装飾方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937822B4 (de) * 1999-08-11 2010-08-12 Mayer, Peter Verfahren und Vorrichtung für den Thermotransferdruck

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239569A (en) * 1978-10-27 1980-12-16 Diamond International Corporation Heat transfer labeling machine
GB2131744A (en) * 1982-11-13 1984-06-27 Automated Transfers Limited Decorating holloware
EP0185895A2 (fr) * 1980-11-29 1986-07-02 Nissha Printing Co., Ltd. Appareil pour colorer un objet par impression par transfert
US4874454A (en) * 1987-04-24 1989-10-17 Roger Laudy Decal transfer device
US5147495A (en) * 1990-12-03 1992-09-15 Douglas James M Thermal transfer device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239569A (en) * 1978-10-27 1980-12-16 Diamond International Corporation Heat transfer labeling machine
EP0185895A2 (fr) * 1980-11-29 1986-07-02 Nissha Printing Co., Ltd. Appareil pour colorer un objet par impression par transfert
GB2131744A (en) * 1982-11-13 1984-06-27 Automated Transfers Limited Decorating holloware
US4874454A (en) * 1987-04-24 1989-10-17 Roger Laudy Decal transfer device
US5147495A (en) * 1990-12-03 1992-09-15 Douglas James M Thermal transfer device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6098689A (en) * 1995-03-08 2000-08-08 Fiwek; Wolfgang Process and device for decorating packages with convex surfaces
WO1996029248A1 (fr) * 1995-03-18 1996-09-26 Wolfgang Fiwek Procede et dispositif permettant de decorer des emballages cylindriques comportant des surfaces courbes
US6811644B2 (en) 1995-03-18 2004-11-02 Heineken Technical Services, B.V. Process and apparatus for decorating packages with convex surfaces
EP2279953A1 (fr) * 2009-07-30 2011-02-02 Moss S.r.l. Appareil pour transférer des images sur des objets
JP2017501778A (ja) * 2013-12-03 2017-01-19 セブ ソシエテ アノニム 熱安定性被覆を含むフレキソ印刷による物品装飾方法

Also Published As

Publication number Publication date
EP0783438A1 (fr) 1997-07-16
EP0783438B1 (fr) 1998-06-10
DE69502961T2 (de) 1999-02-11
AU3698395A (en) 1996-04-19
DE69502961D1 (de) 1998-07-16
ES2120769T3 (es) 1998-11-01

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