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WO1999022991A1 - Procede d'application d'un film thermoretractable sur des contenants et contenants ainsi formes - Google Patents

Procede d'application d'un film thermoretractable sur des contenants et contenants ainsi formes Download PDF

Info

Publication number
WO1999022991A1
WO1999022991A1 PCT/US1998/023064 US9823064W WO9922991A1 WO 1999022991 A1 WO1999022991 A1 WO 1999022991A1 US 9823064 W US9823064 W US 9823064W WO 9922991 A1 WO9922991 A1 WO 9922991A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
film
curved
foot
extension tool
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.)
Ceased
Application number
PCT/US1998/023064
Other languages
English (en)
Inventor
George B. Diamond
Ralph Helmrich
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.)
Dispensing Containers Corp
Original Assignee
Dispensing Containers Corp
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 Dispensing Containers Corp filed Critical Dispensing Containers Corp
Priority to AU12907/99A priority Critical patent/AU1290799A/en
Publication of WO1999022991A1 publication Critical patent/WO1999022991A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/18—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using tubular layers or sheathings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/08—Coverings or external coatings
    • B65D23/0842—Sheets or tubes applied around the bottle with or without subsequent folding operations
    • B65D23/0878—Shrunk on the bottle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/02—Thermal shrinking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0049—Heat shrinkable

Definitions

  • the present invention relates to a method for applying heat shrink film to containers and to containers formed by such methods.
  • Heated shrink film is used to replace decorative printing paper labels, foil labels or other decorative methods for various containers.
  • Heated shrink film is a material that shrinks when heated. It can be made form polyvinyl chloride, polypropylene, polystyrene, and similar plastics. Unprinted or printed film can also be used as a protective surface.
  • Fig. 1 is a schematic view showing a can, in accordance with the present invention, having a mandrel or extension tool in engagement or close proximity with the bottom of a can with a shrink film wrapped around both the can and the extension tool.
  • Fig. 2a is a schematic sectional view showing a can having a heat shrinkable film covering the can and extending from the bottom thereof with an overhang less than the curved length of a foot of the bottom of the can.
  • Fig. 2b is a schematic sectional view showing the can of Fig. 2a after heat has been applied to the heat shrinkable film.
  • Fig. 2c is an enlarged view of a portion of Fig. 2b showing the heat shrinkable film conforming to the foot of the can.
  • Figs. 3a, 3b and 3c are views corresponding to Figs. 2a, 2b and 2c, respectively, showing the heat shrinkable film extending from the bottom of a can with an overhang greater than the curved length of the foot of the can.
  • Figs. 4a-4f show views of the use of a forming plug, in accordance with the present invention, to make the heat shrinkable film turn one or two or more times after it has made its first turning after heating, with Fig. 4a showing the can and film prior to heat being applied; Fig. 4b showing the film after heat has been applied with the forming plug being moved into forming position; Fig. 4c showing the forming plug in engagement with the film and the bottom of the can; and Figs. 4d and 4e showing the film after removal of the forming plug, Fig. 4e being an enlargement of the foot portion of the can.
  • Each shrink film is applied to a container as a preformed sleeve or is applied by wrapping around the container using adhesive which is inside the underlap and overlap so that a sleeve is formed during the process. If the film is a premade sleeve then it can be made to extend beyond the wall of the container without any problem being accounted. If, however, the film is wrapped around the container, either as part of a continuous roll or in precut segments, the container serves as a mandrel and, as long as the film does not extend beyond the wall of the containers, there is no problem and the film may be wrapped and glued. However, if the film extends beyond the walls of the container, then there is no mandrel against which the film can be pressed for adhesion to take place.
  • an extension tool 10 is placed in engagement or close proximity with the bottom 11 of a can 12.
  • This extension tool 10 then serves along with the can 12 as a mandrel.
  • a film 13 may then be applied onto the can 12 with the trailing edge overlapping the leading edge and with an adhesive previously applied to at least one of the edges forming a firm bond between the overlapped edges.
  • the extension tool 10 is then withdrawn leaving a film extension 14 extending from the bottom 11 of the can 12.
  • the extension tool 10 may be made from a non-stick material so that the adhesive used will not stick to it.
  • FIGs. 2a-2c and 3a-3c there are shown schematic illustrations of two cases of heat shrinking a film 13 which extends from the bottom 11 of the can 12.
  • the film 13 extends from the bottom 11 of the can 12 with an overhang 14 which is less than the external curvature 15 of a foot 16 of the can bottom 11. Accordingly, when heat is applied to the film
  • shrink film 13 In order to provide enhanced protection to the internal, as well as external foot curvatures 15 and 17, respectively, and for aesthetic purposes and to prevent an unattached horizontal projection if the bottom 11 is to be fully protected, it is desirable to again turn the shrink film 13 through one or more turns so as to conform to the shape of various can bottoms 11. The same can be done for the top configuration. However, shrink film 13 by itself when heated will not do this by its very nature.
  • the overhang 14 we conform the overhang 14 to the bottom of the can 12 by using a forming plug 18 made to conform exactly to the bottom contour or part of the bottom contour of the container, and we use this plug 18 to press the warm extending overhang 14 (reheated if necessary and a heated forming plug if necessary) and actually mechanically force the overhang 14 into place.
  • the overhang 14 has a length sufficient to cover the outer foot curvature 15 and at least part of the inner foot curvature 17.
  • the overhang 14 may have a greater length 14a, as shown by dashed lines, so that it covers part of the dome 19 of the can bottom.
  • the length of the overhang 14 and the shape of the forming plug 18 control the location and the placement of the film so as to conform the film 13 to the container configuration.
  • Both the extension tool 10 (Fig. 1) and the forming plug 18 (Figs. 4b and 4c) can be of solid nonstick material or just have a non-stick skin and a metal core which, in the case of the forming plug 18, can be heated if necessary for a particular film or special contour.
  • the forming plug 18 can have a resilient surface so that the film 13 is forced snugly into perfect conformance with the container shape.
  • the use of a resilient forming plug can force the film into these various configurations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

On utilise un tube rallonge (10) comme mandrin de rallonge pour envelopper un contenant (12) avec un film rétractable (13) alimenté par rouleau ou avec des feuilles distinctes d'un film rétractable (13), de sorte qu'une partie (14) du film (13) est étirée à partir d'une extrémité (11) du contenant (12), des extrémités du film (13) prévues pour le recouvrement adhérant l'une à l'autre. On utilise un obturateur (18) de mise en forme pour former une partie du film (13), qui soit est alimentée par rouleau soit se présente sous la forme d'un manchon, et qui est disposée à partir d'une extrémité (11) du contenant (12) de sorte que la partie étirée adopte la configuration de l'extrémité à partir de laquelle elle est étirée.
PCT/US1998/023064 1997-10-30 1998-10-30 Procede d'application d'un film thermoretractable sur des contenants et contenants ainsi formes Ceased WO1999022991A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12907/99A AU1290799A (en) 1997-10-30 1998-10-30 A method of applying heat shrink film to containers and containers formed thereby

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US6443497P 1997-10-30 1997-10-30
US60/064,434 1997-10-30
US18254698A 1998-10-29 1998-10-29
US09/182,546 1998-10-29

Publications (1)

Publication Number Publication Date
WO1999022991A1 true WO1999022991A1 (fr) 1999-05-14

Family

ID=26744515

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/023064 Ceased WO1999022991A1 (fr) 1997-10-30 1998-10-30 Procede d'application d'un film thermoretractable sur des contenants et contenants ainsi formes

Country Status (2)

Country Link
AU (1) AU1290799A (fr)
WO (1) WO1999022991A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008026917A1 (fr) * 2006-09-01 2008-03-06 Connexion Baexem B.V. Récipient à enveloppe protectrice, procédé et dispositif permettant de produire ce récipient
EP2532593A1 (fr) * 2011-06-10 2012-12-12 Decomatic S.A. Procédé de protection d'un bord d'un récipient et récipient ainsi équipé
JP2017171354A (ja) * 2016-03-24 2017-09-28 株式会社フジシール 包装体の製造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460951A (en) * 1967-08-04 1969-08-12 Grace W R & Co Method for forming a closure for bottles and other containers
US3494098A (en) * 1967-08-01 1970-02-10 Grace W R & Co Apparatus for simultaneously making closures and sealing containers
US4416714A (en) * 1982-05-27 1983-11-22 B & H Manufacturing Company, Inc. Labeling machine for heat shrink labels
US4742666A (en) * 1987-08-12 1988-05-10 Osgood Industries, Inc. Method and apparatus for forming tamper-evident containers
US4911772A (en) * 1989-06-06 1990-03-27 Shibuya America Corporation Method of applying a thermoplastic strip to a container
US4976798A (en) * 1990-01-12 1990-12-11 Shibuya America Corporation Method of applying a plastic wrap to a contoured container

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3494098A (en) * 1967-08-01 1970-02-10 Grace W R & Co Apparatus for simultaneously making closures and sealing containers
US3460951A (en) * 1967-08-04 1969-08-12 Grace W R & Co Method for forming a closure for bottles and other containers
US4416714A (en) * 1982-05-27 1983-11-22 B & H Manufacturing Company, Inc. Labeling machine for heat shrink labels
US4742666A (en) * 1987-08-12 1988-05-10 Osgood Industries, Inc. Method and apparatus for forming tamper-evident containers
US4911772A (en) * 1989-06-06 1990-03-27 Shibuya America Corporation Method of applying a thermoplastic strip to a container
US4976798A (en) * 1990-01-12 1990-12-11 Shibuya America Corporation Method of applying a plastic wrap to a contoured container

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008026917A1 (fr) * 2006-09-01 2008-03-06 Connexion Baexem B.V. Récipient à enveloppe protectrice, procédé et dispositif permettant de produire ce récipient
EP2532593A1 (fr) * 2011-06-10 2012-12-12 Decomatic S.A. Procédé de protection d'un bord d'un récipient et récipient ainsi équipé
FR2976257A1 (fr) * 2011-06-10 2012-12-14 Decomatic Sa Procede de protection d'un bord d'un recipient et recipient ainsi equipe
JP2017171354A (ja) * 2016-03-24 2017-09-28 株式会社フジシール 包装体の製造方法

Also Published As

Publication number Publication date
AU1290799A (en) 1999-05-24

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