EP0181417A1 - Emballage de rouleaux étanche à la lumière - Google Patents

Emballage de rouleaux étanche à la lumière Download PDF

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Publication number
EP0181417A1
EP0181417A1 EP84201657A EP84201657A EP0181417A1 EP 0181417 A1 EP0181417 A1 EP 0181417A1 EP 84201657 A EP84201657 A EP 84201657A EP 84201657 A EP84201657 A EP 84201657A EP 0181417 A1 EP0181417 A1 EP 0181417A1
Authority
EP
European Patent Office
Prior art keywords
roll
light
heat
piece
leader
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.)
Withdrawn
Application number
EP84201657A
Other languages
German (de)
English (en)
Inventor
Dirk Peeters
Danny Van Geyte
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.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
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 Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to EP84201657A priority Critical patent/EP0181417A1/fr
Publication of EP0181417A1 publication Critical patent/EP0181417A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/002—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers in shrink films
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/16—Wrappers or flexible covers with provision for excluding or admitting light
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C3/00—Packages of films for inserting into cameras, e.g. roll-films, film-packs; Wrapping materials for light-sensitive plates, films or papers, e.g. materials characterised by the use of special dyes, printing inks, adhesives

Definitions

  • This invention relates to the packaging of rolls of light-sensitive material e.g. strips of photographic film or paper for roomlight loading into a camera or other apparatus in which the material is to be exposed.
  • Such rolls are often packaged in light-tight lidded containers from which the roll must be removed preparatory to loading it into the exposure apparatus and there is a risk of the material being spoiled by environmental light unless this loading is carried out under safelight conditions.
  • the known tearable packages have disadvantages from the production standpoint. It is desirable to avoid sticking the end covers to the edges of the rolled light-sensitive material and for that to be possible the end covers have to be stuck to the ends of the roll core and to have rims which are folded over and secured to the outer surface of the roll.
  • the adhesion of the covers to the roll and its core are critical for ensuring the light-tightness of the package. And there is a risk of the covers becoming adhered to the edges of at least the innermost convolution of the light-sensitive material.
  • the packaging operation is complicated by the adhesion requirements and the need to assemble different packaging components to the roll.
  • a packaged roll of light-sensitive material comprising opaque material which protects the rolled material from light while leaving a leader of the rolled material exposed and which can be torn by pulling on such leader to cause the light-sensitive material to commence unwinding from the roll, characterised in that the packaging comprises a piece of heat-shrunk sheet material which extends from between the outermost pair of convolutions in the roll and around the outer periphery of the roll and also extends over the opposed radial end faces of the roll, said piece having been heat-shrunk in situ so that it light-tightly seals the enclosed light-sensitive material.
  • Such a package can be produced easily and cheaply. All that is required for the packaging operation is a single piece of heat-shrinkable material which is opaque to actinic radiation. And no adhesive is required. It suffices to sandwich a marginal portion of the piece of packaging material between the outermost pair of convolutions in the roll, wrap the remainder of such piece around the roll without however totally enclosing the leader, and then heat shrink the resulting packaging tube.
  • the invention includes a method of light-tightly packaging a roll of light-sensitive strip material so that a leader of the rolled light-sensitive material is exposed, the packaging material being tearable by pulling on such leader to start unwinding of material from the roll, which method comprises sandwiching a medial part of one end portion of a piece of heat-shrinkable sheet material between the outermost pair of convolutions in the roll, wrapping the remainder of the length of such piece around the periphery of the roll to form an enclosing tube from which a leader of the roll projects, and heat-shrinking such tube and thereby causing its projecting end portions to collapse inwardly against the radial end faces of the roll.
  • the leader of the rolled material is preferably an integral portion of the rolled light-sensitive material, but it can be formed by a piece of some other material which has been attached to the outer end of that rolled material.
  • the roll 1 comprises light-sensitive strip material wound onto a core 2.
  • a piece 3 of non-light-sensitive material for forming a leader is attached to the outer end of the light-sensitive strip 4 by a piece of adhesive tape 5.
  • a sheet 6 of opaque heat-shrinkable material is positioned under the outer end portion of the strip 4 and an adjacent part of the leader piece 3 as shown by Fig. 1. The length of the sheet 6, i.e.
  • the packaging sheet thus forms a tube from which a part of the leader piece 3 projects.
  • the width of the packaging sheet 6 is sufficiently in excess of the width of the light-sensitive strip.4 to ensure that the end portions 7,8 of this tube which project from the ends of the roll will completely cover the ends of the roll of light-sensitive material when those end portions are caused to collapse inwardly against the roll.
  • This collapse is caused by heat-shrinking the packaging sheet.
  • the extent to which the tube ends project from the ends of the roll is such that following the heat-shrinking operation the said end portions 7,8 also extend over the ends of the core 2. If it is necessary for the core ends to be exposed, for example if they are formed to co-operate with a winder key or the like, the portions of the sheet which actually cover those core ends are then cut away, taking care not to impair the light-tight coverage of the ends of the roll itself.
  • the parameters governing the heat-shrinking operation are preferably such as to achieve a uniform shrinking of the sheet 6. It is preferred to subject the wrapping tube as a whole to a uniform heat treatment to cause its shrinkage though it is possible to achieve the light-tight enclosure of the roll by selectively heating the end regions of the tube.
  • a strip of adhesive tape 9 is secured onto the margin of the packaging sheet from which the leader piece 3 projects, and onto an adjacent portion of the leader piece itself. This strip acts as a reinforcement to prevent premature tearing of the packaging sheet at this region during handling of the roll. The strip is peeled away before inserting the packaged film into an exposure apparatus. The strip 9 can be secured in position before or after the heat-shrinking operation.
  • the packaging sheet When it is required to start withdrawing material from the roll it is merely necessary to exert on the leader, while restraining the roll against accompanying bodily movement, a pull force sufficient to cause the packaging sheet to tear. This can be done for example when the packaged roll has been installed with its leader projecting through the exit slot of a cassette. It is of course essential for the leader to be more resistant to tearing than the packaging sheet itself.
  • the packaging becomes preferentially torn along the junctions between its tubular part and its marginal portions which cover the ends of the roll. At those junctions there will generally be, in consequence of the heat-shrinking operation, a change in the thickness of the packaging material, its thickness being greater in the regions covering the ends of the roll than in the tubular part encircling the periphery of the roll.
  • the heat-shrunk packaging material can extend over the ends of the central passage defined by the wound material or by such core component or can even become deformed into the ends of such passage and thereby more effectively shield the light-sensitive material from any light which might otherwise reach it via such passage.
  • Suitable heat-shrinkable sheet materials for use in the present invention are e.g. low density polyethylene, high density polyethylene, linear low density polyethylene, polyvinylchloride, polypropylene, ethylvinylacetate and mixtures or copolymers thereof. These sheet materials can be made opaque to actinic radiation e.g. by incorporation of carbon black and can either be mono- or biaxially oriented.
  • the invention can be applied in the packaging of rolls of light-sensitive material of various kinds and for various purposes. Certain examples of uses for such rolls are referred to in the prior art references hereinbefore cited.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Packages (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
EP84201657A 1984-11-15 1984-11-15 Emballage de rouleaux étanche à la lumière Withdrawn EP0181417A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP84201657A EP0181417A1 (fr) 1984-11-15 1984-11-15 Emballage de rouleaux étanche à la lumière

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84201657A EP0181417A1 (fr) 1984-11-15 1984-11-15 Emballage de rouleaux étanche à la lumière

Publications (1)

Publication Number Publication Date
EP0181417A1 true EP0181417A1 (fr) 1986-05-21

Family

ID=8192498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201657A Withdrawn EP0181417A1 (fr) 1984-11-15 1984-11-15 Emballage de rouleaux étanche à la lumière

Country Status (1)

Country Link
EP (1) EP0181417A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350093A1 (fr) * 1988-07-08 1990-01-10 Agfa-Gevaert N.V. Bande de matériau photosensible enroulée et emballée, et méthode pour emballer cette bande
JPH0353243A (ja) * 1989-07-21 1991-03-07 Fuji Photo Film Co Ltd 感光材料包装体
EP0414265A3 (en) * 1989-08-25 1991-10-09 Fuji Photo Film Co., Ltd. Package of rolled photosensitive material
EP0537777A3 (en) * 1991-10-18 1993-06-02 Fuji Photo Film Co., Ltd. Packaging apparatus
US5222601A (en) * 1989-08-25 1993-06-29 Fuji Photo Film Co., Ltd. Package of rolled photosensitive material
EP0599001A1 (fr) * 1992-11-20 1994-06-01 Typon Aktiengesellschaft Für Photographische Industrie Bobine de matériau photosensible emballée à l'abri de la lumière et procédé de fabrication
US5452797A (en) * 1993-06-24 1995-09-26 International Paper Company Roll package
US5472089A (en) * 1994-05-03 1995-12-05 Eastman Kodak Company Light-tight and physically protected packaging for a roll of photosensitive web
EP0971263A1 (fr) * 1998-07-10 2000-01-12 Agfa-Gevaert AG Emballage étanche à la lumière pour produit photosensible en bande
EP1011021A1 (fr) * 1998-12-17 2000-06-21 Fuji Photo Film Co., Ltd. Système d'emballage étanche à la lumière pour une bobine de bande photosensible
EP1113319A1 (fr) * 1999-12-27 2001-07-04 Fuji Photo Film Co., Ltd. Système d'emballage étanche à la lumière pour une bobine de bande photosensible
US6375008B2 (en) 1998-12-17 2002-04-23 Fuji Photo Film Co., Ltd. Light shielding packaging system for photosensitive web roll
EP1186953A3 (fr) * 2000-09-01 2005-07-06 Fuji Photo Film Co., Ltd. Procédé et appareil d'emballage étanche à la lumière pour une bobine de bande photosensible et un dispositif de chauffage et fourniture d'un fluide
CN105236028A (zh) * 2015-10-22 2016-01-13 佛山达健实验设备有限公司 新型环保无胶重叠压合封卷卷筒
CN105293195A (zh) * 2015-10-22 2016-02-03 佛山达健实验设备有限公司 环保无胶封卷卷筒
CN105668045A (zh) * 2015-10-22 2016-06-15 佛山达健实验设备有限公司 外供包装段卷筒相对压合无胶封卷方法和设备及卷筒

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458033A (en) * 1967-02-23 1969-07-29 Fuji Photo Film Co Ltd Wrapper for photo-sensitive sheet films

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458033A (en) * 1967-02-23 1969-07-29 Fuji Photo Film Co Ltd Wrapper for photo-sensitive sheet films

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RESEARCH DISCLOSURE, no. 229, May 1983, page 190, disclosure no. 22932, Havant Hampshire, GB; "Roll package" *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350093A1 (fr) * 1988-07-08 1990-01-10 Agfa-Gevaert N.V. Bande de matériau photosensible enroulée et emballée, et méthode pour emballer cette bande
JPH0353243A (ja) * 1989-07-21 1991-03-07 Fuji Photo Film Co Ltd 感光材料包装体
EP0414265A3 (en) * 1989-08-25 1991-10-09 Fuji Photo Film Co., Ltd. Package of rolled photosensitive material
US5222601A (en) * 1989-08-25 1993-06-29 Fuji Photo Film Co., Ltd. Package of rolled photosensitive material
EP0537777A3 (en) * 1991-10-18 1993-06-02 Fuji Photo Film Co., Ltd. Packaging apparatus
US5337536A (en) * 1991-10-18 1994-08-16 Fuji Photo Film Co., Ltd. Packaging apparatus
EP0599001A1 (fr) * 1992-11-20 1994-06-01 Typon Aktiengesellschaft Für Photographische Industrie Bobine de matériau photosensible emballée à l'abri de la lumière et procédé de fabrication
US5452797A (en) * 1993-06-24 1995-09-26 International Paper Company Roll package
EP0681212B1 (fr) * 1994-05-03 2000-08-02 Eastman Kodak Company Emballage étanche à la lumière et physiquement protégé
US5472089A (en) * 1994-05-03 1995-12-05 Eastman Kodak Company Light-tight and physically protected packaging for a roll of photosensitive web
EP0971263A1 (fr) * 1998-07-10 2000-01-12 Agfa-Gevaert AG Emballage étanche à la lumière pour produit photosensible en bande
US6095330A (en) * 1998-07-10 2000-08-01 Agfa-Gevaert N.V. Light-tight packaging entity for strip-shaped light sensitive material
EP1011021A1 (fr) * 1998-12-17 2000-06-21 Fuji Photo Film Co., Ltd. Système d'emballage étanche à la lumière pour une bobine de bande photosensible
US6179123B1 (en) * 1998-12-17 2001-01-30 Fuji Photo Film Co., Ltd. Light-Shielding packaging system for photosensitive web roll
US6375008B2 (en) 1998-12-17 2002-04-23 Fuji Photo Film Co., Ltd. Light shielding packaging system for photosensitive web roll
EP1113319A1 (fr) * 1999-12-27 2001-07-04 Fuji Photo Film Co., Ltd. Système d'emballage étanche à la lumière pour une bobine de bande photosensible
EP1186953A3 (fr) * 2000-09-01 2005-07-06 Fuji Photo Film Co., Ltd. Procédé et appareil d'emballage étanche à la lumière pour une bobine de bande photosensible et un dispositif de chauffage et fourniture d'un fluide
CN105236028A (zh) * 2015-10-22 2016-01-13 佛山达健实验设备有限公司 新型环保无胶重叠压合封卷卷筒
CN105293195A (zh) * 2015-10-22 2016-02-03 佛山达健实验设备有限公司 环保无胶封卷卷筒
CN105668045A (zh) * 2015-10-22 2016-06-15 佛山达健实验设备有限公司 外供包装段卷筒相对压合无胶封卷方法和设备及卷筒

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Inventor name: PEETERS, DIRK