EP0921436A1 - Lichtdichte Verpackung für ein lichtempfindliches Material in Rollenform - Google Patents

Lichtdichte Verpackung für ein lichtempfindliches Material in Rollenform Download PDF

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Publication number
EP0921436A1
EP0921436A1 EP97203813A EP97203813A EP0921436A1 EP 0921436 A1 EP0921436 A1 EP 0921436A1 EP 97203813 A EP97203813 A EP 97203813A EP 97203813 A EP97203813 A EP 97203813A EP 0921436 A1 EP0921436 A1 EP 0921436A1
Authority
EP
European Patent Office
Prior art keywords
light
disc
roll
discs
tight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97203813A
Other languages
English (en)
French (fr)
Other versions
EP0921436B1 (de
Inventor
Antoine De Leener
Wim Hauchecorne
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 EP97203813A priority Critical patent/EP0921436B1/de
Priority to DE1997611195 priority patent/DE69711195T2/de
Priority to US09/201,979 priority patent/US6048676A/en
Priority to JP34302498A priority patent/JPH11231471A/ja
Publication of EP0921436A1 publication Critical patent/EP0921436A1/de
Application granted granted Critical
Publication of EP0921436B1 publication Critical patent/EP0921436B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/67—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material
    • B65D85/671—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form
    • B65D85/672—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form on cores
    • 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
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/30—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants by excluding light or other outside radiation

Definitions

  • the present invention relates to a light-tightly packaged roll of light-sensitive strip material wound on a supporting core.
  • the invention is related to a roll which is intended for daylight loading of a dispenser cassette which, after its loading, can be placed in a suitable cooperating apparatus, generally an exposure apparatus, such as an imagesetter or a COM (computer output on microfilm) system.
  • a suitable cooperating apparatus generally an exposure apparatus, such as an imagesetter or a COM (computer output on microfilm) system.
  • Light-tightly packaged rolls are known, wherein a roll of light-sensitive strip material, e.g. photographic film or paper, a polyester printing plate, or another light-sensitive strip material, is wound on a hollow supporting core.
  • Such packaged rolls comprise a light-tight flexible end cover for each end surface of the roll, each end cover having a central opening and being light-tightly attached to a corresponding end of the core, and a light-tight flexible circumferential cover secured to the coiled strip material and covering the outermost convolution of the roll.
  • the peripheral areas of the end covers and the side ends of the circumferential cover are light-tightly fitted to each other so as to obtain a light-tight and/or moisture-tight wrapping.
  • the flexibility of the end covers causes several problems.
  • the covers may press against the unwinding light-sensitive material, which results in varying friction forces between the end covers and the light-sensitive material. Because of varying friction, the light-sensitive material is not transported smoothly, but with shocks, through the exposure apparatus. When an image is exposed on the light-sensitive material during transport, image quality suffers from the unsmoothness of transport. This problem will hereinafter be referred to as the "unsmooth transport" problem.
  • the flexible end covers may bend inwards to the core.
  • the flexible end covers may be caught between the windings of the roll, which may result in damage to the light-sensitive material. Rewinding the light-sensitive material will hereinafter be called "reverse winding".
  • Patent application EP-A-0 786 695 discloses a light-tight package for a roll, wherein each end cover consists of an opaque flexible disc, on the outside of which a thin polymer layer of e.g. 30 to 50 ⁇ m is extruded. After the extrusion, the polymer layer cools down and shrinks, inducing stresses into the flexible disc, as a result of which the flexible disc is bent to the outside, i.e. towards the extruded polymer layer and away from the roll. The flexible discs are welded to the circumferential cover and to the core.
  • Patent application EP-A-0 779 541 solves present these drawbacks to a certain extent. It discloses a light-tight package for a roll, wherein each end cover consists of an opaque tearable flexible disc and a rigid disc, the rigid disc being positioned between the flexible disc and the end surface of the roll.
  • the rigid discs have an outer diameter less than or equal to the outer diameter of the roll, while the flexible discs have a larger outer diameter.
  • the outer portions of the flexible discs are folded over the rigid discs and are secured to the circumferential cover of the roll by means of adhesive tape.
  • the adhesive tape and the flexible covers are tearable, and the circumferential cover includes a portion adapted to initiate a tear in the tape and the flexible discs.
  • a first drawback is the presence of tearable adhesive tape, and thus, the risk of contamination with adhesives of the light-sensitive strip material or of the dispensing apparatus.
  • Another drawback is the fact that the flexible discs must be folded over the circumferential cover, which retires an extra step in the packaging process. Further, to initiate a tear in the tape and the flexible discs, the circumferential cover must have a complicated shape; several shapes are illustrated in the patent application.
  • a “substantially straight" end cover stands for an end cover having side surfaces that lie substantially in a flat plane, i.e. the maximum distance between a side surface and the corresponding flat plane is smaller than 2 mm, preferably smaller than 1 mm, still more preferably smaller than 0.5 mm. More accurately defined: a disc-like end cover is delimited by four - usually circular - curves. The first and the second curve are inner curves, delimiting the central opening of the end cover, where the end cover is attached to the core. The third and the fourth curve are outer curves, forming the peripheral contour of the end cover.
  • the first and the third curve delimit the interior side surface of the end cover, while the second and the fourth curve delimit the exterior side surface; the end cover itself lies between the interior and the exterior side surfaces.
  • the interior side surface is the surface nearest to the roll.
  • the interior flat plane is defined as the flat plane through the - inner - first curve; the exterior flat plane is the flat plane through the - inner - second curve.
  • the maximum perpendicular distance of any point of the interior side surface to the interior flat plane should be smaller than 2 mm, preferably smaller than 1 mm, still more preferably smaller than 0.5 mm.
  • An end cover may have folded margins, either inner margins that can e.g. be tucked within the ends of the core, or outer margins that can e.g. be sealed to the circumferential cover; such an end cover is substantially straight if the end cover, excluding the margins, is substantially straight.
  • the "buckling value" of an end cover stands for a value that is representative for the resistance to buckling of the end cover, a larger buckling value corresponding to a higher resistance to buckling.
  • the buckling value depends on the geometry of the end cover and on the material(s) the end cover is made of. A more extensive definition of the "buckling value" is given hereinafter.
  • Fig. 1 shows an exploded view of an embodiment of a light-tight package wherein a roll 11 of light-sensitive strip material 15 is wound on a, preferably hollow, supporting core 10.
  • a light-tight flexible circumferential cover 12 is secured to the coiled strip material 15, e.g. by means of a strip of non-tearable adhesive tape 13.
  • Two light-tight end covers 35 and 45 are light-tightly attached to the corresponding ends of the core.
  • Each end cover 35 resp. 45 comprises a flexible disc 31 resp. 41 and a rigid disc 32 resp. 42.
  • the flexible disc 31 is positioned between the end surface 30 of the roll and the rigid disc 32; the flexible disc 41 is positioned between the end surface 40 of the roll and the rigid disc 42.
  • the flexible discs 31, 41 have margins 33, 43 at their inner diameter, that are tucked within the ends of the core and sealed thereto.
  • the flexible discs 31, 41 and the rigid discs 32, 42 all have margins at their inner diameter, the margins 33 coinciding with margins 34, and margins 43 coinciding with 44; the coinciding margins are tucked within the ends of the core and sealed thereto.
  • the circumferential cover 12 has a width in excess of the wound strip material.
  • the circumferential cover is wound around the coiled strip material, so that it covers the outermost convolution thereof, and is light-tightly attached to the end covers.
  • the package may have a leader, not shown in Fig. 1, that may be attached to the circumferential cover or that may be part of the circumferential cover, and by means of which the strip material can be threaded in the slot of a dispenser cassette.
  • the leader is an extension of slightly reduced width of the circumferential cover, an extension that is not secured to the end covers.
  • the leader has a tapered shape.
  • FIG. 2 shows a roll package as described.
  • Two rigid flanges 51, 52 having a hub engaging the corresponding core opening, support the roll when it is packed into a rectangular cardboard box 60 for storage and shipping.
  • flanges other supporting means known in the art may be used, such as shells having an inner hemicylindrical surface that supports the outer roll surface, without supporting the end covers.
  • the roll package can be wrapped into a dustproof foil before packing it into the box.
  • each end cover comprises a flexible disc 31, 41 and a rigid disc 32, 42.
  • the flexible discs 31, 41 are light-tightly sealed to the circumferential cover 12.
  • the rigid discs 32, 42 are added to increase the buckling value of the end discs.
  • the end covers are slender, i.e. their thickness is small with respect to their diameter. Moreover, they are made of materials having a small modulus of elasticity. Therefore, if a too large compressive force is exerted upon an end cover, it will riot fail because its yield strength is exceeded, but it will buckle, i.e. deflect to the side, and hence it may be caught between the windings of the rewound light-sensitive strip material.
  • the compressive force mentioned above can be caused by the strip material touching an end cover.
  • the strip material is rewound centred with respect to the end covers of the roll, so that there is a small spacing at the left hand side, between the left side of the strip and the left end cover, and analogously a small spacing at the right hand side.
  • the strip material may however deviate to the left or to the right from this central position during reverse winding, e.g. due to changes in the torque of the motor driving the roll, due to small alignment errors of the rollers leading the strip through the cooperating apparatus, etc. Due to such a deviation, the strip material may touch an end cover and exert a compressive force on it, in the direction of the core of the roll.
  • the magnitude of the compressive force depends on the characteristics of the cooperating apparatus.
  • the effect of the force depends on the geometry and the material properties of the end covers, and also on the geometry and the material properties of the strip material.
  • I b * h 3 / 12 , wherein b is the width (in m) and h the height (in m) of the cross section (the width b is the dimension parallel to the neutral line of the cross section).
  • the disc also has an inner diameter, its influence on the buckling value B is negligible if the inner diameter is 70 % or less of the outer diameter.
  • the diameter ⁇ in the formula for B is then taken equal to the outer diameter of the disc.
  • the buckling value is determined by experiments, as described in the examples hereinafter.
  • the end covers are substantially straight.
  • the end covers should be rigid enough to resist without buckling to compressive forces that can be caused as mentioned hereinbefore by the strip material touching an end cover, the magnitude of these compressive forces depending upon the characteristics of the cooperating apparatus.
  • the buckling value of an end cover B > 0.05 N, preferably B > 0.1 N, still more preferably B > 0.25 N.
  • transport may be unsmooth and reverse winding may be unreliable in currently available cooperating apparatuses, for currently available strip materials.
  • the rigidity of the discs 31, 41 resp. 32, 42 can be defined by means of their buckling value: according to the current invention, the buckling value B 2 of the rigid discs 32, 42 is larger than the buckling value B 1 of the flexible discs 31, 41.
  • the end covers 35, 45 shown in Fig. 1 comprise flexible discs 31, 41 comprising a moisture-tight and light-tight heat-sealable foil, that may comprise layers of paper (e.g. 70 g/m 2 ), aluminium (thickness e.g. 9 ⁇ m), black pigmented heat-sealable polyethylene (thickness e.g. 38 ⁇ m).
  • the core 10 preferably comprises cardboard, but it may also be made e.g. of plastic.
  • the flexible discs 31, 41 have inner margins 33, 43 that are tucked within the ends of the core 10 and heat-sealed thereto, as disclosed in patent application EP-A-0 350 093.
  • the circumferential cover 12 which may be of the same basic material as the flexible discs, is fed towards the roll, and while the roll is slowly rotated, the rims of the circumferential cover are progressively brought into contact with the peripheral areas of the flexible discs, whilst applying heat and pressure.
  • the polyethylene innerside of the rims of the circumferential cover is sealed to the corresponding polyethylene innerside of the flexible discs.
  • the polyethylene innerside of the rims of the circumferential cover becomes sealed to the outerside of the already sealed rims of this cover.
  • the sealed part of the circumferential cover preferably extends 360 to 720 angular degrees about the roll.
  • the leader not shown in Fig. 1, extends freely from the finished package.
  • the leader may be secured to the underlying circumferential cover, e.g. by a strip of adhesive tape 14 (Fig. 2).
  • the overlapping of the circumferential cover over an angle between preferably 90 and 180 angular degrees ensures a reliable light-tight seal of the packaged roll.
  • end covers can also be secured to the circumferential cover and to the core in other ways, such as by glueing, by interposition of a two-sided adhesive ribbon or the like, etc.
  • the circumferential cover and the end covers each comprise a thermoplastic layer, e.g. a polyethylene layer, so that by heat-sealing these layers, the circumferential cover and the end covers can be secured to each other.
  • the flexible discs most preferably comprise the materials mentioned above, but they may also comprise other materials, such as a laminate of polyethylene terephtalate with vacuum deposited aluminium and black polyethylene, polypropylene, and the like.
  • the flexible discs 31, 41 have no margins 33, 43.
  • the core 10 is provided at both its extremities with plastic rings (not shown), that are heat-sealed to the area of the inner diameter of the flexible discs.
  • the rigid discs 32, 42 comprise a laminate of polyethylene terephtalate (thickness e.g. 100 ⁇ m) and polyethylene (thickness e.g. 75 ⁇ m).
  • the rigid discs may comprise other materials, such as polycarbonate, polypropylene, polystyrene, acetate and the like.
  • each rigid disc 32 resp. 42 is laminated to the corresponding flexible disc 31 resp. 41.
  • the corresponding rigid and flexible discs are co-extruded.
  • the corresponding rigid and flexible discs may also be secured to each other in another way, such as by adhesives.
  • the rigid discs are present in the package as it is shipped to the customer, but the rigid discs can also be added later on, e.g. by the customer, to a package comprising only flexible discs and no rigid discs. In case the rigid discs are added later, self-adhesive rigid discs are preferred.
  • the outer diameter of the flexible discs is larger than the diameter of the roll; the difference between both diameters may e.g. be 5 to 15 mm, but it may also be larger, e.g. approximately 30 mm.
  • An advantage is that deviations of the roll diameter can be coped with; in practice, the diameter of the roll of wound strip material may undergo deviations as high as 2 mm for a roll with a nominal diameter of 113 mm. These deviations are caused by small deviations in the thickness of the strip material, which are multiplied by the large number of convolutions of the roll.
  • the outer diameter of the end covers is equal to or is smaller than the diameter of the roll.
  • the flexible discs and the rigid discs have substantially equal outer diameters, i.e. the difference between their diameters is smaller than 2 mm, preferably smaller than 0.5 mm, more preferably smaller than 0.2 mm.
  • the outer diameter of the rigid discs may also be larger or may be smaller than the outer diameter of the flexible discs.
  • the inner diameter of the flexible discs is smaller than the inner diameter of the rigid discs, so that the flexible disc may comprise margins, that can easily, by means of automated equipment, be tucked into the ends of the core and sealed thereto.
  • the inner diameter of the flexible discs may be equal to or larger than the inner diameter of the rigid discs.
  • the end covers may be sealed to the core in some other way than heat-sealing, as disclosed hereinbefore.
  • the flexible discs and the rigid discs have substantially equal inner diameters, and have coinciding margins at their inner diameter. These margins can be tucked into the ends of the core and sealed thereto, preferably by means of automated equipment.
  • each end cover comprises two discs; an end cover may also comprise three or more discs.
  • the core 10 is hollow, but it may e.g. also be solid having hollow ends, or completely solid.
  • the circumferential cover is secured to the flexible discs, but the circumferential cover may also be secured to other discs that are part of the end covers.
  • the circumferential cover may also comprise end flange portions, as disclosed in patent application EP-A-0 350 093, that are folded and tucked within the ends of the core and sealed thereto.
  • the leader is an extension of slightly reduced width of the circumferential cover, an extension that is not secured to the end covers.
  • the leader may also be a separate strip, secured to the circumferential cover.
  • the leader is secured directly to the strip material, just as the circumferential cover is secured to the strip material. In this way, the leader and the circumferential cover overlap each other.
  • the leader is covered by the circumferential cover, is longer than the circumferential cover and protrudes from the package.
  • the circumferential cover is secured to the strip material along a line L1 and the leader is secured to the circumferential cover along a line L2 that lies e.g. only a few mm away from line L1.
  • the circumferential cover and the leader also overlap each other.
  • the circumferential cover covers the leader.
  • the leader is longer than the circumferential cover and protrudes form the package.
  • the circumferential cover comprises end flange portions, as disclosed in patent application EP-A-0 350 093, the packaged roll leaves the leader exposed, and the packaging is tearable by pulling on the leader, as disclosed in the mentioned patent application.
  • a roll package may be loaded into a dispenser cassette that can be placed in a suitable cooperating apparatus, but the roll package may also be loaded directly into a cooperating apparatus.
  • the package according to the present invention provides important advantages.
  • each end cover comprises a flexible disc and a rigid disc, wherein the flexible disc guarantees light-tightness of the package, and the rigid disc provides substantial straightness and a high buckling value, so that reliable reverse winding and smooth transport are ensured.
  • the flexible discs need not be made of a tearable material.
  • the material of the rigid discs may be transparent, such as polyethylene terephtalate or a laminate thereof; this material is readily available in film imaging business.
  • the thickness of the end covers may be quite limited, e.g. 0.3 to 0.4 mm, while at the same time ensuring the advantages of adequate light-tightness and reliable reverse winding and smooth transport, advantages that can more easily be obtained by using thick, rigid end covers.
  • it is important that the thickness of the end covers is limited because of dimensional considerations.
  • the packaged roll In a dispenser cassette or cooperating apparatus, the packaged roll is placed on an unwinding spool. In current cassettes and cooperating apparatuses, there is virtually no space available in the axial direction between the roll package and the spool.
  • no adhesives, no adhesive tape, and most preferably no tearable adhesive tape are required to secure the end covers to the circumferential cover and to the core, and to secure the discs constituting the end covers to each other.
  • the circumferential cover may have a quite simple shape; no complicated shape is required to initiate tearing.
  • the leader is an extension of slightly reduced width of the circumferential cover, and has a tapered shape.
  • a packaged roll according to the present invention is easy to produce, and the manufacturing process can easily be automated.
  • the packaging process requires relatively few steps.
  • the buckling value is determined by an experiment, in which the resistance to buckling of the disc is compared with the buckling resistance of discs consisting of a single material. Also, a lower limit resp. an upper limit of the buckling value can be calculated by assuming that the disc would completely consist of the weakest material (i.e. the material with the lowest C) resp. the strongest material. For example, a disc having a diameter of 100 mm and consisting of 0.1 mm paper and 0.1 mm PET has a buckling value between 0.02 and 0.32 N (these are the values for 0.2 mm paper resp. 0.2 mm PET, as shown in the table).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
EP97203813A 1997-12-04 1997-12-04 Lichtdichte Verpackung für ein lichtempfindliches Material in Rollenform Expired - Lifetime EP0921436B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP97203813A EP0921436B1 (de) 1997-12-04 1997-12-04 Lichtdichte Verpackung für ein lichtempfindliches Material in Rollenform
DE1997611195 DE69711195T2 (de) 1997-12-04 1997-12-04 Lichtdichte Verpackung für ein lichtempfindliches Material in Rollenform
US09/201,979 US6048676A (en) 1997-12-04 1998-12-01 Light-tight package for a roll of light-sensitive material
JP34302498A JPH11231471A (ja) 1997-12-04 1998-12-02 感光性材料のロールのための遮光性パツケージ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97203813A EP0921436B1 (de) 1997-12-04 1997-12-04 Lichtdichte Verpackung für ein lichtempfindliches Material in Rollenform

Publications (2)

Publication Number Publication Date
EP0921436A1 true EP0921436A1 (de) 1999-06-09
EP0921436B1 EP0921436B1 (de) 2002-03-20

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Application Number Title Priority Date Filing Date
EP97203813A Expired - Lifetime EP0921436B1 (de) 1997-12-04 1997-12-04 Lichtdichte Verpackung für ein lichtempfindliches Material in Rollenform

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EP (1) EP0921436B1 (de)
JP (1) JPH11231471A (de)
DE (1) DE69711195T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017165435A (ja) * 2016-03-15 2017-09-21 三井化学東セロ株式会社 光架橋性シートの梱包体および光架橋性シートの保管方法
WO2018140307A2 (en) 2017-01-27 2018-08-02 Henkel IP & Holding GmbH Disposable insole pads and use thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148395A (en) * 1977-12-05 1979-04-10 Eastman Kodak Company Roll package
US4505387A (en) * 1983-07-08 1985-03-19 Fuji Photo Film Co., Ltd. Roll package
EP0350093A1 (de) * 1988-07-08 1990-01-10 Agfa-Gevaert N.V. Verpackte aufgewickelte Bahn lichtempfindlichen Materials und Verfahren zum Verpacken
EP0632322A1 (de) * 1993-06-05 1995-01-04 Du Pont De Nemours (Deutschland) Gmbh Lichtdichte Verpackung von bahnförmigem lichtempfindlichem Material
EP0743556A2 (de) * 1995-05-15 1996-11-20 Eastman Kodak Company Lichtdichte Verpackung
WO1997004358A1 (en) * 1995-07-21 1997-02-06 Jan Cornelis Boele Composite disc for the lightproff sealing of a roll of light-sensitive material
EP0779541A1 (de) * 1995-12-14 1997-06-18 Eastman Kodak Company Lichtdichte Verpackung
EP0786695A1 (de) * 1996-01-25 1997-07-30 Agfa-Gevaert AG Verpackung für fotografisches Papier
EP0828185A1 (de) * 1996-09-04 1998-03-11 Eastman Kodak Company Lichtdichte Verpackung mit perforierten Endscheiben

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10307369A (ja) * 1997-05-07 1998-11-17 Konica Corp ロール状感光材料包装体とその製造方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148395A (en) * 1977-12-05 1979-04-10 Eastman Kodak Company Roll package
US4505387A (en) * 1983-07-08 1985-03-19 Fuji Photo Film Co., Ltd. Roll package
EP0350093A1 (de) * 1988-07-08 1990-01-10 Agfa-Gevaert N.V. Verpackte aufgewickelte Bahn lichtempfindlichen Materials und Verfahren zum Verpacken
EP0632322A1 (de) * 1993-06-05 1995-01-04 Du Pont De Nemours (Deutschland) Gmbh Lichtdichte Verpackung von bahnförmigem lichtempfindlichem Material
EP0743556A2 (de) * 1995-05-15 1996-11-20 Eastman Kodak Company Lichtdichte Verpackung
WO1997004358A1 (en) * 1995-07-21 1997-02-06 Jan Cornelis Boele Composite disc for the lightproff sealing of a roll of light-sensitive material
EP0779541A1 (de) * 1995-12-14 1997-06-18 Eastman Kodak Company Lichtdichte Verpackung
EP0786695A1 (de) * 1996-01-25 1997-07-30 Agfa-Gevaert AG Verpackung für fotografisches Papier
EP0828185A1 (de) * 1996-09-04 1998-03-11 Eastman Kodak Company Lichtdichte Verpackung mit perforierten Endscheiben

Also Published As

Publication number Publication date
EP0921436B1 (de) 2002-03-20
DE69711195D1 (de) 2002-04-25
JPH11231471A (ja) 1999-08-27
DE69711195T2 (de) 2002-11-28

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