EP1184718A1 - Verfahren und Vorrichtung zum Verpacken von vorsensibilisierten Platten - Google Patents
Verfahren und Vorrichtung zum Verpacken von vorsensibilisierten Platten Download PDFInfo
- Publication number
- EP1184718A1 EP1184718A1 EP00203060A EP00203060A EP1184718A1 EP 1184718 A1 EP1184718 A1 EP 1184718A1 EP 00203060 A EP00203060 A EP 00203060A EP 00203060 A EP00203060 A EP 00203060A EP 1184718 A1 EP1184718 A1 EP 1184718A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- foil
- plates
- layers
- seal
- bundle
- 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
Links
Images
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
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/02—Wrapped articles enclosed in rigid or semi-rigid containers
-
- 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
-
- 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
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
-
- 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
- B65D2313/00—Connecting or fastening means
- B65D2313/10—Adhesive or cohesive means for holding the contents attached to the container
Definitions
- a bundle of presensitised plates is packed in laminated, light tight paper by folding and closing said paper around said bundle, such that the bundle is completely enclosed.
- the thus formed package is then enclosed within a cardboard wrapping of a standard size.
- a cardboard blank is formed having a flat back portion on which said package is placed.
- the back portion is provided with an elevated edge, against which the package is placed with a first side, a second side, perpendicular to said first side extending along a folding line through which the back portion is connected to a side panel.
- Cardboard spacers are glued to the inside of the package, on the back portion, at least against the side of the package opposite said first side and one against the side opposite said second side.
- the cardboard blank is folded around said packed bundle of plates and closed with conventional means such as tape and glue.
- the paper is used to shield the plates from light. Then the spacers and said two sides of the outer package are used to secure the packed bundle in place within said cardboard box.
- the cardboard box is used to prevent the plates from mechanical damage and to provide for a standard size package, independent of the actual size of the plates.
- This known method has the disadvantage of packaging the plates in laminated paper, which is costly and time consuming, as is said paper itself.
- the laminated paper is environmentally unfriendly and can be easily damaged.
- this method requires high precision.
- this method has the disadvantage that the spacers are necessary for securing the plates in a stacked position within said bundle. If the spacers are incorrectly placed or come loose during transport, the bundle of plates can move within the cardboard box whereas the plates can move relative to each other within said stack. Both types of movement can then easily lead to damage to the plates, especially to the presensitised properties. Also the laminated paper can become torn, resulting in loss of light resisting properties, rendering the plates worthless.
- a first object of the present invention is to provide for a method for packaging presensitised plates in which the disadvantages of the known method are prevented, maintaining the advantages thereof.
- a second object of the invention is to provide for such method in which the plates can be stacked in a bundle and enclosed, such that the plates will be secured in the bundle without the risk of damage due to movement of the plates relative to each other within said package.
- a further object of the invention is to provide for such method which is less time consuming and more economical, wherein placement of the bundle of plates requires less precision.
- presensitised plates preferably in bundles, are packed primarily in foil, between two layers.
- the foil is protective to the plates and is preferably elastically stretched in at least one direction, between seals on either side of said plates, thereby enclosing said plates and when elastically stretched forcing them together.
- the latter position results in a secure position of the plates and prevents relative movement thereof.
- Preferably light tight elastomeric foil is used, shielding the plates from light and thus maintaining the light sensitive properties.
- the layers of foil are interconnected on the other sides substantially without stretching said foil in any direction enclosing an angle with said first direction.
- said first direction between two opposite sides, the foil is stretched, whereas in a direction perpendicular to said first direction the foil is not stretched.
- stretching in only one direction has proven to be sufficient in most cases to prevent relative movement of the plates within said bundle. This results in an even easier method for stacking, since stretching has to be obtained in only one direction.
- a larger freedom of choice of foil is available since also foils can be used which can be elastically stretched in only one direction.
- a method according to the present invention is further characterised by the features of claim 4.
- the layers of foil are fed from continuous strips, the plates being placed in between. Seals are formed in front of and behind said plates while the layers are stretched elastically.
- a seal is formed between two bundles of plates and then cut, in a direction substantially perpendicular to said feeding direction, such that part of said seal forms a first seal behind the bundle in front (seen in said feeding direction), the other part of said seal forming a seal in front of the next bundle.
- the foil layers are at least partly fed by applying pressure to said front seal, such that elastically stretching of said layers is obtained. A further seal can then easily be provided behind said bundle.
- foil prepared of PE, PP or blends thereof comprising black pigments, which foil is light tight, can be elastically deformed, are relatively economical and environmentally friendly. Moreover, such foils are readily available and can be used in single layered form. It is preferred that relatively thin foil is used. Surprisingly foils having a thickness of less than 150 micrometer have proven to be sufficient. More preferably even thinner foils are used, especially foils having a thickness of less than 85 micrometers, for example 70 micrometers.
- a method according to the present invention is further characterised by the features of claim 7.
- the thus packed bundles can be easily positioned inside an outer box, such as a cardboard box, using glue.
- Said glue has to be position on only one side of the bundle to prevent movement of the bundle within said box.
- glue is applied in at least two patches, stripes or such spaced apart positions, thereby even better preventing movement of the bundle.
- Friction glue therein has the advantage that the bundle can be taken out easily, substantially without leaving a trace of the glue on the bundle, whereas it secures the position of the plates sufficiently. Glue could obviously also be applied on both sides of the bundle.
- the invention further relates to an apparatus for packaging presensitised plates, characterised by features of claim 15.
- two layers of light tight, preferably elastomeric foil, e.g. polyethylene or polypropylene foil, comprising dark pigments can be fed using supplying means, whereas presensitised plates can be fed between said two layers, in an insertion direction, between said two layers by feeding means.
- the plates are inserted between said layers of foil, between a first seal in front of said plates and a second seal which is formed trailing said plates, such that after release of said foils said two layers enclose the plates, and are if stretched forced against said plates including said seals, as a result of elastic forces within said layers.
- the layers of foil and seals are thereby brought in full contact with said plates.
- the present invention further relates to a package, comprising a bundle of presensitised plates, characterised by the features of claim 19.
- Figures 1 and 2 show an inner and outer package according to the prior art as described in the introduction to the specification.
- Figure 1 shows an inner package 1, comprising a stack or bundle of presensitised plates, fully enclosed in laminated paper 2, folded around said stack of plates and closed by a number of strips of adhesive tape 3.
- the laminated paper 2 is in contact with the plates as much as possible.
- the inner package 1 is shown, positioned on an open outer package 4, made of cardboard.
- the outer package 4 is folded from a blank and comprises a back panel 6, on two opposite sides connected to front panels 8 by two sets of parallel folding lines 10 enclosing side panels 12.
- elevated edges 14 are formed by folding inward part of the relevant panel 6, 8.
- the height H 1 of the inner side of said elevated edge 14 is preferably maximum half the height H 2 of the inner package 1.
- the front panels 8 and side panels 12 are folded over approximately 90° along the folding lines 10, relative to the back panel 6, the front panels 8 can be positioned on top of the inner package 1, the elevated edges 14 of the front panels 8 lying on the elevated edges 14 of the back panel 6, thus enclosing said inner package 1.
- the width W 1 of the front panels 8 is approximately half the width W 2 of the back panel 6.
- the inner package 1 has a length L 3 and a width W 3 smaller than the width W 2 and length L 1 between the elevated edges 14 of the back panel 6.
- the size of the inner package 1 is obviously merely defined by the size of the presensitised plates.
- the inner package 1 is positioned against one of the elevated edges 14 on the back panel 6, a side of said inner package 1 lying against a folding line 10.
- Cardboard spacers 16 are glued onto the back panel 6, one positioned against the inner package 1 to a first side, opposite the elevated edge 14 against which the inner package 1 rests, the other spacer 16 against the side of the inner package 1 opposite said folding line 10 along which the package 1 is positioned.
- the outer package 4 together with the spacers 16 therefore secure the position of the inner package 1 within said outer package 4.
- FIG 3 schematically an apparatus is shown for packaging presensitised plates, especially bundles or stacks of such plates, according to the present invention, using foil for enclosing said bundle of plates.
- An apparatus 20 comprises supply means 22 for supplying two layers of light tight foil, feeding means for feeding presensitised plates, in bundles, between said layers of foil, in a feeding direction R, sealing means 26 for sealing the layers of foil for enclosing said bundle of presensitised plates between said layers of foil and cutting means 28 for cutting an inner package 30 thus formed loose from said layers of foil.
- the supply means 22 comprise an upper roller 32 of elastomeric foil comprising black, or at least dark pigment, whereas a second, lower roller 34 is provided, also comprising a roll of such elastomeric foil.
- a first layer 36 is provided, which is guided around an upper guide means 38 to a substantially horizontal position, forming an upper layer above a bundle of presensitised plates 40.
- a second layer 42 of foil is provided from the lower roller 34, which is guided around guide means 44 to a substantially horizontal position, parallel to the first layer 36, below said bundle of presensitised plates 40.
- the first and second layer 36, 42 are both continuous.
- a first seal 46 is provided, which has been made and cut by the sealing means 26 and cutting means 28 respectively.
- the bundles of presensitised plates 40 are fed over the feeding means 24, for example a transport belt, against said first seal 46 which at that time was positioned between an upper and lower knife 28A, 28B of the cutting means.
- a second bundle of presensitised plates 40 is shown in broken lines pushed by the feeding means 24.
- the first seal 46 When feeding said bundle of presensitised plates 40 from said position in broken lines to the position as shown in full lines in figure 3, the first seal 46 is pushed forward in the feeding direction R, in figure 3 to the left, such that the trailing end 48 is pushed passed the sealing means 26 and cutting means 28.
- the first layer 36 and second layer 42 are elastically stretched in the direction of transportation R, which constitutes a first direction.
- This elastically stretching can for example be obtained by breaking means (not shown) preventing the upper and lower rollers 32, 34 from unwinding the first and second layer 36, 42 respectively with the same speed as the speed of said bundle of presensitised plates 40.
- a clamp 53 fixes the stretched part from the first seal 46 to the clamp.
- the stretch at the feeding part of the foils is relieved.
- the sealing means are closed against the first and second layer 36, 42 and are heated, such as to form two heat seals, connecting said first and second layer 36, 42.
- FIG 3A the first and second bundle of presensitised plates 40 are partly shown, at an enlarged scale, together with the second seal 50 behind the trailing end 48 of a first bundle 40 and the first seal 46 in front of a next bundle 40A, trailing said first bundle.
- the layers 36 and 42 enclosing the first bundle 40 will under the influence of the elastic tension due to said stretching, retake as far as possible their original form as soon as the clamp 53 is withdrawn. This means that the layers 36, 42 will be forced against the bundle of plates 40, at least on the upper and lower side and on both ends, seen in the first direction R, said direction of feeding.
- the trailing bundle 40A can then be forced forward in said first direction R, passing the sealing means 26.
- two further seals 52 are provided, further enclosing said bundle 40. These further seals 52 are provided at a slight distance of said bundle 40 or at least without stretching said layers 36, 42 between said further seals 52. These further seals 52 are therefore relatively loose, sloppy seals.
- Such further seals 52 can be provided easily, for example by seal means comprising heated rollers or the like.
- the inner package 30 is stuck to the back panel 6 of the outer package 4 in any desired position, for example a position as shown in figure 2, using the commonly known inner package 1.
- the bundle of plates 40 is easily held in place by the slightly elastically deformed layers 36, 42.
- the further seals 52 are folded under the second layer 42 before pressing said inner package 30 to the glue 54 on the back panel, thereby even better enclosing said plates 40.
- lanes of friction glue 54 the inner package 30 is prevented from movement within a closed outer package 4 without the necessity of said spacers, which makes it easier to fit the inner package 30. Moreover, such package needs less material and is therefore economical.
- relatively thin layers 36, 42 of foil can be used, for example polyethylene foil having a thickness of less than 150 micrometer.
- Black PE foil of both 85 micrometers and 100 micrometers thickness have been used with satisfactory light tightness and tensile strength.
- the tensile strength of the plastic foils are not only determined by its thickness but also by the polymer density of the foil.
- the density is preferably larger than 0.94 for properly stretching around the edges of the presensitised plates without ruptures of the plastic foil.
- Low foil thickness seems to reach a limit around 70 micrometer, which is feasible if the density of the foil is about 0.96 g/cc. When the density is dropped below 0.94, ruptures in the foils occur easily.
- said first layer 36 and said second layer 42 are folded from a single strip of foil by folding said strip of foil along a folding line extending parallel to the feeding direction R.
- the bundle of presensitised plates 40 is introduced and sealed between said two layers 36, 42 in a similar manner as described.
- Such method has the advantage that only one further seal 52 has to be provided.
- the present invention is not limited to the embodiments as shown and described with reference to the drawings. Many further embodiments should be considered to fall within the scope of the invention as presented in the claim.
- the layers of foil can also be stretched elastically in a direction perpendicular to the first direction, said direction of feeding, as long as the type of foil used enables such elastically stretching, whereas the layers of foil can also enclose said plates without being stretched, maintaining the advantage of easy packaging in a light tight manner.
- the further seals can be provided for before, during as well as after forming the first and second seals 46, 50.
- the seals can be provided for by other means, for example glue.
- single presensitised plates could be packaged with a method according to the present invention. In fact, any number of presensitised plates could be packaged accordingly.
- friction glue could be provided for in other patterns, such as dots, more of less lanes or the like.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Packaging Of Special Articles (AREA)
- Packages (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20000203060 EP1184718B1 (de) | 2000-09-04 | 2000-09-04 | Verfahren und Vorrichtung zum Verpacken von vorsensibilisierten Platten |
DE2000631848 DE60031848T2 (de) | 2000-09-04 | 2000-09-04 | Verfahren und Vorrichtung zum Verpacken von vorsensibilisierten Platten |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20000203060 EP1184718B1 (de) | 2000-09-04 | 2000-09-04 | Verfahren und Vorrichtung zum Verpacken von vorsensibilisierten Platten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1184718A1 true EP1184718A1 (de) | 2002-03-06 |
EP1184718B1 EP1184718B1 (de) | 2006-11-15 |
Family
ID=8171977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000203060 Expired - Lifetime EP1184718B1 (de) | 2000-09-04 | 2000-09-04 | Verfahren und Vorrichtung zum Verpacken von vorsensibilisierten Platten |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1184718B1 (de) |
DE (1) | DE60031848T2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011079895A3 (de) * | 2009-12-23 | 2011-09-29 | DüRR DENTAL AG | Vorrichtung zum einschliessen eines flachen objektes, insbesondere einer speicherfolie, in eine schutzhülle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3895997B1 (de) * | 2020-03-25 | 2023-11-15 | BVM Brunner GmbH & Co. KG | Verpackungsmaschine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3589091A (en) * | 1968-09-06 | 1971-06-29 | Cloud Machine Corp | Method and apparatus for wrapping or labeling a package |
FR2310261A1 (fr) * | 1975-05-07 | 1976-12-03 | Verwachting Bv Machinefab | Machine a emballer au moyen de feuilles |
FR2496062A1 (fr) * | 1980-12-16 | 1982-06-18 | Nicollet Hugues Sa | Procede et element pour conditionnement d'articles fragiles a separer un a un, ampoules pharmaceutiques par exemple |
EP0292007A2 (de) * | 1987-05-22 | 1988-11-23 | Fuji Photo Film Co., Ltd. | Verpackungsmaterial für photoempfindliche Materialien |
JPH05119439A (ja) * | 1991-10-29 | 1993-05-18 | Fuji Photo Film Co Ltd | 平版印刷版の包装体 |
-
2000
- 2000-09-04 DE DE2000631848 patent/DE60031848T2/de not_active Expired - Lifetime
- 2000-09-04 EP EP20000203060 patent/EP1184718B1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3589091A (en) * | 1968-09-06 | 1971-06-29 | Cloud Machine Corp | Method and apparatus for wrapping or labeling a package |
FR2310261A1 (fr) * | 1975-05-07 | 1976-12-03 | Verwachting Bv Machinefab | Machine a emballer au moyen de feuilles |
FR2496062A1 (fr) * | 1980-12-16 | 1982-06-18 | Nicollet Hugues Sa | Procede et element pour conditionnement d'articles fragiles a separer un a un, ampoules pharmaceutiques par exemple |
EP0292007A2 (de) * | 1987-05-22 | 1988-11-23 | Fuji Photo Film Co., Ltd. | Verpackungsmaterial für photoempfindliche Materialien |
JPH05119439A (ja) * | 1991-10-29 | 1993-05-18 | Fuji Photo Film Co Ltd | 平版印刷版の包装体 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 017, no. 485 (P - 1605) 2 September 1993 (1993-09-02) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011079895A3 (de) * | 2009-12-23 | 2011-09-29 | DüRR DENTAL AG | Vorrichtung zum einschliessen eines flachen objektes, insbesondere einer speicherfolie, in eine schutzhülle |
Also Published As
Publication number | Publication date |
---|---|
DE60031848T2 (de) | 2007-07-05 |
DE60031848D1 (de) | 2006-12-28 |
EP1184718B1 (de) | 2006-11-15 |
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