WO2004035324A2 - Treatment method for maintaining flat a thin film - Google Patents

Treatment method for maintaining flat a thin film Download PDF

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Publication number
WO2004035324A2
WO2004035324A2 PCT/FR2003/002992 FR0302992W WO2004035324A2 WO 2004035324 A2 WO2004035324 A2 WO 2004035324A2 FR 0302992 W FR0302992 W FR 0302992W WO 2004035324 A2 WO2004035324 A2 WO 2004035324A2
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WO
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Prior art keywords
film
treatment method
segments
blocking
blocking segments
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PCT/FR2003/002992
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French (fr)
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WO2004035324A3 (en
Inventor
Pierre Dumoux
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High Tech Design
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Publication date
Application filed by High Tech Design filed Critical High Tech Design
Priority to EP03773821A priority Critical patent/EP1554126A2/en
Priority to AU2003282201A priority patent/AU2003282201A1/en
Publication of WO2004035324A2 publication Critical patent/WO2004035324A2/en
Publication of WO2004035324A3 publication Critical patent/WO2004035324A3/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/10Applying flat materials, e.g. leaflets, pieces of fabrics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/12Slitting marginal portions of the work, i.e. forming cuts, without removal of material, at an angle, e.g. a right angle, to the edge of the work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/025Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet

Definitions

  • the present invention relates to a treatment method for keeping a thin film flat, more particularly although not exclusively, a film of water-soluble material used for covering articles by immersion.
  • the transfer sheet When placed on the top surface of the liquid, the transfer sheet tends to change size during softening. So that the pattern to be transferred does not undergo parasitic deformation causing defects on the transferred coating, it is essential that the change in size is as regular as possible.
  • the edges of the film forming the transfer sheet tend to roll along the edges. that is to say that the film tends to wind on itself locally, which causes stresses in the film generating a parasitic deformation of the decorative pattern, that is to say a deformation not provided for in advance. Similar rolling phenomena can be observed due to the stresses appearing in a thin plastic film when the latter is subjected to tensile forces so that the handling of the film is affected.
  • An object of the invention is to provide a treatment for keeping a thin film flat.
  • a method is proposed comprising the step of delimiting on the film separate blocking segments extending along the edges of the film.
  • the blocking segments are produced by cutting the edge of the film according to a non-rectilinear contour.
  • the blocking segments are produced by cutting the film along segments spaced from one another.
  • the lips of the segments thus cut then tend to deform slightly in the manner of a buttonhole so that this slight deformation creates a component of transverse force at the edge of the film and blocks rolling of the edge of the film.
  • the blocking segments are produced by applying a deposit of material on the film.
  • the segments then cause a very slight local stiffening of the film which prevents rolling of the film along the edge.
  • the deposit of material is preferably arranged on the side of the film which is in contact with the liquid, so that the deposit of material locally delays the softening of the film, which further improves the flat holding thereof.
  • FIG. 1 is a partial top view of a film comprising two types of blocking segment
  • FIG. 2 is a partial perspective view of a device making it possible to cut a thin film
  • FIG. 3 is a partial view of a film on which blocking segments have been produced by means of a material deposition.
  • the edge of the film 1 is cut along a broken zigzag line delimiting fringes 9 in the form of triangles whose base 2 illustrated by dashes connecting two reversal points, forms blocking segments as will be explained below.
  • the fringes 9 are in the form of equilateral triangles.
  • Cutting along a broken line can be carried out using a shaped heating wire or using a cutter. Cutting can also be performed using a laser associated with an oscillating mirror and by scrolling the edge of the film in the field of laser radiation.
  • the zigzag cut can also be carried out by means of a very thin water jet projected onto the film using an oscillating nozzle.
  • the sides of the fringes 9 preferably have a length of between 5 mm and 15 mm, and preferably 10 mm.
  • the fringes 9 tend to roll but as soon as the ends of the winding reach points of inversion of the zigzag outline, the rolling is stopped so that the bases of the fringes 9 form separate blocking segments which prevent further winding of the edge.
  • FIG. 1 also illustrates a second embodiment of the method according to the invention - consisting in cutting from the film two series of blocking segments 3 offset laterally with respect to each other, the blocking segments d one series being alternated with respect to the blocking segments of the other series, and the blocking segments 3 of a series being spaced from each other by a distance close to the length of the blocking segments 3.
  • the locking segments 3 are preferably produced by means of the device illustrated in FIG. 2.
  • the device comprises a cylindrical anvil 4 on which a thumb wheel 5 is kept pressed.
  • the wheel 5 comprises two series of cutting sectors 6 projecting from the surface of the wheel 5. Teeth 7 extend between the cutting sectors 6.
  • the cutting sectors 6 extend alternately in two offset circles, c that is to say that in an axial direction of the dial, opposite a cutting sector 6 of one of the circles, the other circle has drive teeth 7.
  • the film 1 is pinched between the anvil 4 and the cutting wheel 5 so that the rotational drive of the anvil 4 causes the film 1 to be drawn on the one hand and the film 1 to be cut adjacent to its longitudinal edge along alternate slots 3 as illustrated in Figure 1.
  • the blocking segments 3 preferably have a length of between 10 mm and 30 mm, and preferably 20 mm and the two series of segments are spaced apart. one from the other by a distance between 5 mm and 20 mm, more particularly 10 mm.
  • FIG. 3 illustrates a third mode of implementation according to which blocking segments 8 have been produced by means of a stiffening material such as a varnish deposited on the film by any suitable means such as a brush, or a means of printing such as serigraphy or heliography. Satisfactory flat retention of a water-soluble film 40 ⁇ m thick was obtained by producing rectangular blocking segments arranged perpendicular to the edge of the film and having a length of between 3 mm and 10 mm, and preferably 5 mm, and a width between 2 mm and 5 mm, preferably 3 mm.
  • the locking segments are spaced in a longitudinal direction of the film by a distance of between 5 cm and 10 cm, preferably 8 cm.
  • the cutting of the edge of the film according to a line broken in a zigzag can be replaced by a cut along a scallop line or any other cut delimiting blocking segments by an inversion of direction between two points of a non-rectilinear contour, including a curvilinear contour such as a contour sinusoidal.
  • this can be carried out with an insoluble material, such as the varnish mentioned above, or with a soluble material whose consistency and / or thickness locally slows the dissolution of the film.
  • the length and arrangement of the blocking segments are adapted to the solubility of the film and to its thickness.

Abstract

The invention concerns a treatment method for maintaining flat a thin film (1) comprising delimiting on the film separate blocking segments (2, 3, 8) extending along the edges of the film.

Description

Procédé de traitement pour un maintien à plat d'un film mince. Treatment method for keeping a thin film flat.
La présente invention concerne un procédé de traitement pour un maintien à plat d'un film mince, plus particulièrement bien que non exclusivement, un film de matière hydrosoluble utilisé pour le recouvrement d'articles par immersion.The present invention relates to a treatment method for keeping a thin film flat, more particularly although not exclusively, a film of water-soluble material used for covering articles by immersion.
ARRIERE PLAN DE L'INVENTION On connaît, notamment du document FR-A-2 281 833, un procédé de revêtement d'articles consistant à déposer sur une cuve remplie d'eau une feuille de ' ransfert en matière hydrosoluble portant un revêtement à transférer sur les articles, puis à immerger les articles dans le liquide après ramollissement de la feuille de transfert.BACKGROUND OF THE INVENTION We know, in particular from document FR-A-2 281 833, a process for coating articles consisting in depositing on a tank filled with water a ransfer sheet of water-soluble material carrying a coating to be transferred on the articles, then immerse the articles in the liquid after softening the transfer sheet.
Lorsqu'elle est posée sur la surface supérieure du liquide, la feuille de transfert tend à changer de di- mension pendant son ramollissement. Pour que le motif à transférer ne subisse pas de déformation parasite engendrant des défauts sur le revêtement transféré, il est essentiel que le changement de dimension soit aussi régulier que possible. Cependant, en raison de la finesse du film formant la feuille de transfert, dont l'épaisseur peut être de l'ordre de 40 μm, les bords du film formant la feuille de transfert ont tendance à roulotter le long des bords, c'est-à-dire que le film à tendance à s'enrouler sur lui-même localement, ce qui provoque dans le film des contraintes engendrant une déformation parasite du motif décoratif, c'est à dire une déformation non prévue à l'avance. Des phénomènes analogues de roulotte- ment peuvent être observés en raison des contraintes apparaissant dans un film mince en matière plastique lors- que celui-ci est soumis à des efforts de traction de sorte .que la manipulation du film se trouve affectée.When placed on the top surface of the liquid, the transfer sheet tends to change size during softening. So that the pattern to be transferred does not undergo parasitic deformation causing defects on the transferred coating, it is essential that the change in size is as regular as possible. However, due to the thinness of the film forming the transfer sheet, the thickness of which can be of the order of 40 μm, the edges of the film forming the transfer sheet tend to roll along the edges. that is to say that the film tends to wind on itself locally, which causes stresses in the film generating a parasitic deformation of the decorative pattern, that is to say a deformation not provided for in advance. Similar rolling phenomena can be observed due to the stresses appearing in a thin plastic film when the latter is subjected to tensile forces so that the handling of the film is affected.
OBJET DE L'INVENTION Un but de l'invention est de proposer un traitement pour un maintien à plat d'un film mince. BREVE DESCRIPTION DE L'INVENTION Selon l'invention, on propose un procédé comprenant l'étape de délimiter sur le film des segments de blocage séparés s'étendant le long des bords du film. Selon un mode de réalisation préféré de l'invention, les segments de blocage sont réalisés par une découpe du bord du film selon un contour non rectili- gne.OBJECT OF THE INVENTION An object of the invention is to provide a treatment for keeping a thin film flat. BRIEF DESCRIPTION OF THE INVENTION According to the invention, a method is proposed comprising the step of delimiting on the film separate blocking segments extending along the edges of the film. According to a preferred embodiment of the invention, the blocking segments are produced by cutting the edge of the film according to a non-rectilinear contour.
On a en effet constaté que le roulottement des franges ainsi délimitées par le contour non rectiligne est stoppé lorsque les extrémités de l'enroulement atteignent des points d' inversion du contour qui délimitent des segments de blocage. Par une détermination appropriée du contour du bord il est donc possible de limiter la longueur de l'enroulement local de sorte que les contraintes exercées par l'enroulement sont alors trop faibles pour provoquer une déformation significative du film.It has in fact been found that the rolling of the fringes thus delimited by the non-rectilinear contour is stopped when the ends of the winding reach points of inversion of the contour which delimit blocking segments. By an appropriate determination of the edge contour it is therefore possible to limit the length of the local winding so that the stresses exerted by the winding are then too weak to cause significant deformation of the film.
Selon un autre mode de réalisation de l'invention, les segments de blocage sont réalisés par une découpe du film selon des segments espacés les uns des autres . Les lèvres des segments ainsi découpées ont alors tendance à se déformer légèrement à la façon d'une boutonnière de sorte que cette légère déformation crée une composante de force transversale au bord du film et bloque le roulottement du bord du film.According to another embodiment of the invention, the blocking segments are produced by cutting the film along segments spaced from one another. The lips of the segments thus cut then tend to deform slightly in the manner of a buttonhole so that this slight deformation creates a component of transverse force at the edge of the film and blocks rolling of the edge of the film.
Selon encore un autre mode de réalisation de l'invention, les segments de blocage sont réalisés par application d'un dépôt de matière sur le film. Les seg- ments provoquent alors un très léger raidissement local du film qui évite le roulottement du film le long du bord. En outre, dans le cas d'un film hydrosoluble, le dépôt de matière est de préférence disposé du côté du film qui est en contact avec le liquide, de sorte que le dépôt de matière retarde localement le ramollissement du film, ce qui améliore encore le maintien à plat de celui- ci.According to yet another embodiment of the invention, the blocking segments are produced by applying a deposit of material on the film. The segments then cause a very slight local stiffening of the film which prevents rolling of the film along the edge. In addition, in the case of a water-soluble film, the deposit of material is preferably arranged on the side of the film which is in contact with the liquid, so that the deposit of material locally delays the softening of the film, which further improves the flat holding thereof.
BREVE DESCRIPTION DES DESSINS D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture des différents modes de mise en œuvre qui seront décrits ci-après en référence aux figures ci-jointes parmi lesquelles :BRIEF DESCRIPTION OF THE DRAWINGS Other characteristics and advantages of the invention will appear on reading the different modes of implementation which will be described below with reference to the attached figures among which:
- la figure 1 est une vue de dessus partielle d'un film comportant deux types de segment de blocage, - la figure 2 est une vue en perspective partielle d'un dispositif permettant d'assurer une découpe d'un film mince,FIG. 1 is a partial top view of a film comprising two types of blocking segment, FIG. 2 is a partial perspective view of a device making it possible to cut a thin film,
- la figure 3 est une vue partielle d'un film sur lequel des segments de blocage ont été réalisés au moyen d'un dépôt de matière.- Figure 3 is a partial view of a film on which blocking segments have been produced by means of a material deposition.
DESCRIPTION DETAILLEE DE L'INVENTION En référence à la figure 1, selon un mode de mise en œuvre préféré de l'invention, le bord du film 1 est découpé selon une ligne brisée en zigzag délimitant des franges 9 en forme de triangles dont la base 2 illustrée par des tirets reliant deux points d'inversion, forme des segments de blocage ainsi qu'il sera expliqué ci-dessous. Dans le mode de réalisation illustré les franges 9 sont en forme de triangles équilatéraux. ' La découpe selon une ligne brisée peut être réalisée à l'aide d'un fil chauffant mis en forme ou à l'aide d'un massicot. La découpe peut également être réalisée en utilisant un laser associé à un miroir oscillant et en faisant défiler le bord du film dans le champ du rayonnement laser. Dans le cas d'un film hydrosoluble, la découpe en zigzag peut également être réalisée au moyen d'un jet d'eau très mince projeté sur le film à l'aide d'une buse oscillante. Dans le cas particulier d'un film hydrosoluble ayant une épaisseur de 40μm, les côtés des franges 9 ont de préférence une longueur comprise entre 5 mm et 15 mm, et de préférence 10 mm. Lors de l'hydratation du film les franges 9 ont tendance à rou- lotter mais dès que les extrémités de l'enroulement atteignent des points d'inversion du contour en zigzag, le roulottement est arrêté de sorte que les bases des franges 9 forment des segments de blocage séparés qui évitent la poursuite de l'enroulement du bord.DETAILED DESCRIPTION OF THE INVENTION With reference to FIG. 1, according to a preferred embodiment of the invention, the edge of the film 1 is cut along a broken zigzag line delimiting fringes 9 in the form of triangles whose base 2 illustrated by dashes connecting two reversal points, forms blocking segments as will be explained below. In the illustrated embodiment, the fringes 9 are in the form of equilateral triangles. '' Cutting along a broken line can be carried out using a shaped heating wire or using a cutter. Cutting can also be performed using a laser associated with an oscillating mirror and by scrolling the edge of the film in the field of laser radiation. In the case of a water-soluble film, the zigzag cut can also be carried out by means of a very thin water jet projected onto the film using an oscillating nozzle. In the particular case of a water-soluble film having a thickness of 40 μm, the sides of the fringes 9 preferably have a length of between 5 mm and 15 mm, and preferably 10 mm. During the hydration of the film the fringes 9 tend to roll but as soon as the ends of the winding reach points of inversion of the zigzag outline, the rolling is stopped so that the bases of the fringes 9 form separate blocking segments which prevent further winding of the edge.
La figure 1 illustre également un second mode de mise en œuvre du procédé selon l' invention - consistant à découper dans le film deux séries de segments de blocage 3 décalées latéralement l'une par rapport à l'autre, les- segments de blocage d'une série étant alternés par rapport aux segments de blocage de l'autre série, et les segments de blocage 3 d'une série étant espacés les uns des autres d'une distance voisine de la longueur des segments de blocage 3. Dans ce mode de mise en œuvre du procédé selon l'invention, les segments de blocage 3 sont de préférence réalisés au moyen du dispositif illustré par la figure 2. En référence à la figure 2, le dispositif comprend une enclume cylindrique 4 sur laquelle une molette 5 est maintenue en appui. La molette 5 comporte deux séries de secteurs tranchants 6 en saillie par rapport à la surface de la molette 5. Des dents 7 s'étendent entre les secteurs tranchants 6. Les secteurs tranchants 6 s'étendent de façon alternée selon deux cercles décalés, c'est-à-dire que selon une direction axiale de la molette, en regard d'un secteur tranchant 6 de l'un des cercles, l'autre cercle comporte des dents d'entraînement 7. Le film 1 est pincé entre l'enclume 4 et la molette de découpe 5 de sorte que 1 ' entraînement en rotation de l'enclume 4 provoque d'une part l'entraînement du film 1 et d'autre part la découpe du film 1 de façon adjacente à son bord longitudinal selon des fentes alternées 3 comme illustré par la figure 1. Dans le cas d'un film hydrosoluble d'une épaisseur de 40 μm, les segments de blocage 3 ont de préférence une longueur comprise entre 10mm et 30 mm, et de préférence 20 mm et les deux séries de segments sont es- pacées l'une de l'autre d'une distance comprise entre 5 mm et 20 mm, plus particulièrement 10 mm.FIG. 1 also illustrates a second embodiment of the method according to the invention - consisting in cutting from the film two series of blocking segments 3 offset laterally with respect to each other, the blocking segments d one series being alternated with respect to the blocking segments of the other series, and the blocking segments 3 of a series being spaced from each other by a distance close to the length of the blocking segments 3. In this mode for implementing the method according to the invention, the locking segments 3 are preferably produced by means of the device illustrated in FIG. 2. With reference to FIG. 2, the device comprises a cylindrical anvil 4 on which a thumb wheel 5 is kept pressed. The wheel 5 comprises two series of cutting sectors 6 projecting from the surface of the wheel 5. Teeth 7 extend between the cutting sectors 6. The cutting sectors 6 extend alternately in two offset circles, c that is to say that in an axial direction of the dial, opposite a cutting sector 6 of one of the circles, the other circle has drive teeth 7. The film 1 is pinched between the anvil 4 and the cutting wheel 5 so that the rotational drive of the anvil 4 causes the film 1 to be drawn on the one hand and the film 1 to be cut adjacent to its longitudinal edge along alternate slots 3 as illustrated in Figure 1. In the case of a water-soluble film with a thickness of 40 μm, the blocking segments 3 preferably have a length of between 10 mm and 30 mm, and preferably 20 mm and the two series of segments are spaced apart. one from the other by a distance between 5 mm and 20 mm, more particularly 10 mm.
Les segments de blocage 3 peuvent également être réalisés selon une seule série s'étendant parallèlement au bord du film. La figure 3 illustre un troisième mode de mise en œuvre selon lequel des segments de blocage 8 ont été réalisés au moyen d'une matière de raidissement telle qu'un vernis déposé sur le film par tout moyen approprié tel qu'une brosse, ou un moyen d'impression tel que la séri- graphie ou 1 ' héliographie. Un maintien à plat satisfaisant d'un film hydrosoluble de 40 μm d'épaisseur a été obtenu en réalisant des segments de blocage rectangulaires disposés perpendiculairement au bord du film et ayant une longueur comprise entre 3 mm et 10 mm, et de préfé- rence 5 mm, et une largeur comprise entre 2 mm et 5 mm, de préférence 3 mm. Les segments de blocage sont espacés selon une direction longitudinale du film d'une distance comprise entre 5 cm et 10 cm, de préférence 8 cm. On notera à. ce propos qu'un écartement trop important des seg- ments de blocage prive le procédé de son efficacité pour empêcher le roulottement du bord du film tandis qu'un écartement trop faible entre les segments de blocage risque de provoquer un blocage trop important de l'expansion du film et risque donc de provoquer des déformations pa- rasites du revêtement porté par le film.The locking segments 3 can also be produced in a single series extending parallel to the edge of the film. FIG. 3 illustrates a third mode of implementation according to which blocking segments 8 have been produced by means of a stiffening material such as a varnish deposited on the film by any suitable means such as a brush, or a means of printing such as serigraphy or heliography. Satisfactory flat retention of a water-soluble film 40 μm thick was obtained by producing rectangular blocking segments arranged perpendicular to the edge of the film and having a length of between 3 mm and 10 mm, and preferably 5 mm, and a width between 2 mm and 5 mm, preferably 3 mm. The locking segments are spaced in a longitudinal direction of the film by a distance of between 5 cm and 10 cm, preferably 8 cm. We note at. The suggestion that too great a spacing of the blocking segments deprives the process of its effectiveness in preventing rolling of the edge of the film while a too small spacing between the blocking segments risks causing too great a blocking of the film. expansion of the film and therefore risks causing unwanted deformations of the coating carried by the film.
Bien entendu, l'invention n'est pas limitée aux modes de mise en œuvre décrits et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications. En particulier, la découpe du bord du film selon une ligne brisée en zigzag peut être remplacée par une découpe selon une ligne en festons ou tout autre découpe délimitant des segments de blocage par une inversion de direction entre deux points d'un contour non rectiligne, y compris un contour curviligne tel qu'un contour sinusoïdal .Of course, the invention is not limited to the modes of implementation described and it is possible to make variant embodiments without departing from the scope of the invention as defined by the claims. In particular, the cutting of the edge of the film according to a line broken in a zigzag can be replaced by a cut along a scallop line or any other cut delimiting blocking segments by an inversion of direction between two points of a non-rectilinear contour, including a curvilinear contour such as a contour sinusoidal.
On peut également délimiter des segments de blocage par des perforations, ce mode de mise en œuvre présentant toutefois l'inconvénient de produire des déchets dont l'élimination peut être difficile à réaliser.It is also possible to delimit blocking segments by perforations, this mode of implementation, however, having the drawback of producing waste the elimination of which may be difficult to achieve.
Dans le cas d'un dépôt de matière de raidissement, celui-ci peut être réalisé avec une matière insoluble, comme le vernis mentionné ci-dessus, ou avec une matière soluble dont la consistance et/ou l'épaisseur ra- lentit localement la dissolution du film.In the case of a deposit of stiffening material, this can be carried out with an insoluble material, such as the varnish mentioned above, or with a soluble material whose consistency and / or thickness locally slows the dissolution of the film.
Dans tous les autres cas la longueur et la disposition des segments de blocage sont adaptées à la solubilité du film et à son épaisseur. In all other cases, the length and arrangement of the blocking segments are adapted to the solubility of the film and to its thickness.

Claims

REVENDICATIONS
1. Procédé de traitement pour un maintien à plat d'un film mince, caractérisé en ce qu'il comprend l'étape de délimiter sur le film des segments (2, 3, 8) de blocage séparés s 'étendant le long des bords du film.1. Treatment method for keeping a thin film flat, characterized in that it comprises the step of delimiting on the film separate blocking segments (2, 3, 8) extending along the edges of the film.
2. Procédé de traitement selon la revendication2. Treatment method according to claim
1, caractérisé en ce que les segments de blocage (2) sont délimités par une découpe du bord du film selon un con- tour non rectiligne.1, characterized in that the locking segments (2) are delimited by cutting the edge of the film along a non-rectilinear contour.
3. Procédé de traitement selon la revendication3. Treatment method according to claim
2, caractérisé en ce que les segments de blocage (2) sont délimités par un contour en zigzag.2, characterized in that the locking segments (2) are delimited by a zigzag contour.
4. Procédé de traitement selon la revendication 3, caractérisé en ce que le contour en zigzag délimite des triangles équilatéraux (9) ayant des côtés de longueur comprise entre 5 mm et 15 mm, de préférence 10 mm.4. Treatment method according to claim 3, characterized in that the zigzag contour delimits equilateral triangles (9) having sides of length between 5 mm and 15 mm, preferably 10 mm.
5. Procédé de traitement selon la revendication 1, caractérisé en ce que les segments de blocage (3) sont réalisés par une découpe du film (1) selon des fentes.5. Treatment method according to claim 1, characterized in that the locking segments (3) are produced by cutting the film (1) according to slots.
6. Procédé de traitement selon la revendication 5, caractérisé en ce que les segments de blocage (3) ont une longueur comprise entre 10 mm et 30 mm, de préférence 20 mm. 6. Treatment method according to claim 5, characterized in that the locking segments (3) have a length of between 10 mm and 30 mm, preferably 20 mm.
7. Procédé de traitement selon la revendication7. Treatment method according to claim
5, caractérisé en ce que les segments de blocage (3) sont espacés d'une distance voisine d'une longueur des segments .5, characterized in that the locking segments (3) are spaced a distance close to a length of the segments.
8. Procédé de traitement selon la revendication 7, caractérisé en ce que les segments de blocage (3) sont réalisés selon deux séries de segments de blocage alternés .8. Treatment method according to claim 7, characterized in that the blocking segments (3) are produced according to two series of alternating blocking segments.
9. Procédé de traitement selon la revendication 1, caractérisé en ce que les segments de blocage (8) sont réalisés par application d'un dépôt de matière de raidis- sèment .9. Treatment method according to claim 1, characterized in that the blocking segments (8) are produced by applying a deposit of stiffening material. sow.
10. Procédé de traitement selon la revendication 9, caractérisé en ce que les segments de blocage ont une longueur comprise entre 3 mm et 10 mm, de préférence 5 mm, une largeur comprise entre 2 mm et 5 mm, de préférence 3 mm, et sont espacés d'une distance comprise entre 5 cm et 10 cm, de préférence 8 cm. 10. Treatment method according to claim 9, characterized in that the blocking segments have a length between 3 mm and 10 mm, preferably 5 mm, a width between 2 mm and 5 mm, preferably 3 mm, and are spaced a distance of between 5 cm and 10 cm, preferably 8 cm.
PCT/FR2003/002992 2002-10-15 2003-10-10 Treatment method for maintaining flat a thin film WO2004035324A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03773821A EP1554126A2 (en) 2002-10-15 2003-10-10 Treatment method for maintaining flat a thin film
AU2003282201A AU2003282201A1 (en) 2002-10-15 2003-10-10 Treatment method for maintaining flat a thin film

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0212779A FR2845677A1 (en) 2002-10-15 2002-10-15 Handling of thin hydro-soluble film includes provision of saw-tooth edge and slots to assist in keeping film entirely flat
FR02/12779 2002-10-15

Publications (2)

Publication Number Publication Date
WO2004035324A2 true WO2004035324A2 (en) 2004-04-29
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PCT/FR2003/002992 WO2004035324A2 (en) 2002-10-15 2003-10-10 Treatment method for maintaining flat a thin film

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EP (1) EP1554126A2 (en)
AU (1) AU2003282201A1 (en)
FR (1) FR2845677A1 (en)
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2022013721A1 (en) * 2020-07-13 2022-01-20 Conveyor Limited Methods and machinery for manufacturing packaging

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FR2281833A1 (en) * 1974-08-12 1976-03-12 Kobayashi Kk APPARATUS FOR PRINTING DRAWINGS ON VARIOUS ARTICLES
US4229239A (en) * 1977-07-27 1980-10-21 Dai Nippon Insatsu Kabushiki Kaisha Transfer printing method
US5418041A (en) * 1992-05-19 1995-05-23 Armstrong World Industries, Inc. Method of applying a ceramic image to a complex ceramic article
EP0781631A1 (en) * 1995-12-27 1997-07-02 VIOLA GIORGIO S.r.l. Rotating cutter particularly suitable for cutting ribbon-like materials
EP0876911A1 (en) * 1997-05-07 1998-11-11 MZE Engineering für Verfahrenstechnik GmbH Apparatus for applying a decoration onto at least one article
EP1129830A2 (en) * 2000-03-03 2001-09-05 AZIONARIA COSTRUZIONI MACCHINE AUTOMATICHE-A.C.M.A.-S.p.A. Method and unit for fringing sheet wrapping material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2281833A1 (en) * 1974-08-12 1976-03-12 Kobayashi Kk APPARATUS FOR PRINTING DRAWINGS ON VARIOUS ARTICLES
US4229239A (en) * 1977-07-27 1980-10-21 Dai Nippon Insatsu Kabushiki Kaisha Transfer printing method
US5418041A (en) * 1992-05-19 1995-05-23 Armstrong World Industries, Inc. Method of applying a ceramic image to a complex ceramic article
EP0781631A1 (en) * 1995-12-27 1997-07-02 VIOLA GIORGIO S.r.l. Rotating cutter particularly suitable for cutting ribbon-like materials
EP0876911A1 (en) * 1997-05-07 1998-11-11 MZE Engineering für Verfahrenstechnik GmbH Apparatus for applying a decoration onto at least one article
EP1129830A2 (en) * 2000-03-03 2001-09-05 AZIONARIA COSTRUZIONI MACCHINE AUTOMATICHE-A.C.M.A.-S.p.A. Method and unit for fringing sheet wrapping material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022013721A1 (en) * 2020-07-13 2022-01-20 Conveyor Limited Methods and machinery for manufacturing packaging

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WO2004035324A3 (en) 2004-09-02
AU2003282201A1 (en) 2004-05-04
AU2003282201A8 (en) 2004-05-04
FR2845677A1 (en) 2004-04-16
EP1554126A2 (en) 2005-07-20

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