JPH04118644A - Package for photographic film cartridge - Google Patents

Abstract

PURPOSE:To make the package small in size and lightweight and to improve the waste disposal adequacy by combining a paper pipe after moistureproof processing and moistureproof caps. CONSTITUTION:The photographic film cartridge is stored in the paper pipe 1 after the moistureproof processing, the waterproof caps 6 are fitted to the opening parts at both ends of the paper pipe 1, and the inner peripheries at both ends of the paper pipe 1 and the inner peripheries of the cap 6 are adhered thermally to form the package body for the cartridge. Then the paper pipe 1 is made moistureproof by sticking a plastic film which has Al foil or Al vapor-deposited on the inner periphery, a plastic film which has superior barrier property, or their laminate on a paper material. A laminate material which contains Al foil is usable for the caps 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a package for a photographic film cartridge of 16 mm or 35 mm, and more particularly to a package in which a photographic film cartridge is hermetically packaged.

In particular, the 35m+w photographic film cartridge is used for 35+gm-IN reflex cameras, compact cameras, and half-size cameras, which have the highest tube ratio.

Here, a photographic film cartridge has the minimum structural requirements of a spool, a cartridge body, and a photographic film wound around the spool, and the photographic film is unexposed before use and most of it is wound around the spool. It is in the cartridge body in a state where it is held in place, is fed out of the cartridge body within the camera, is subjected to image exposure, and is rolled back into the cartridge body.

[Prior Art] Conventionally, such photographic film cartridge packaging bodies include, for example, a polypropylene resin container disclosed in JP-A-61-250639 and Utility Model Publication No. 58-464.
A thin metal foil molded container disclosed in Japanese Patent No. 13 is commonly used.

That is, a photographic film cartridge is placed in a cylindrical resin container or a 1 m cylindrical metal container, and a cap is applied to form a sealed package.

[Problems to be Solved by the Invention] The conventional photographic film cartridge package described above is a resin container that generates a high amount of heat when incinerated after use. There was a problem that it did not decompose, affecting its durability and being stable against heat, water, light, bacteria, and chemicals even if it was buried in a landfill.

In the case of metal containers, it is impossible to incinerate them, which poses even more problems in terms of industrial waste disposal. In addition, conventional containers have a low recovery rate and pose similar problems when used as general waste.

On the other hand, photographic film has the property of being sensitive to ambient environmental conditions such as humidity, and in order to maintain a constant quality during manufacturing over a long period of time, it is basically necessary to avoid the use of water vapor, sulfur dioxide gas, formalin gas, etc., which are harmful to photographic materials. Gas must be shut off.

An object of the present invention is to provide a packaging body for a photographic film cartridge that satisfies the above-mentioned basic functions and is made of materials that naturally decompose or can be easily incinerated, and is small and lightweight and suitable for waste disposal. This is what I did.

[Means for Solving the Problems] The above features of the present invention! ! The problem is that after storing a photographic film cartridge in a moisture-proof paper tube, a moisture-proof cap is fitted to the openings at both ends of the paper tube, and the inner periphery of both ends of the paper tube and the inner periphery of the moisture-proof cap are connected to one another. This problem is solved by a package for a photographic film cartridge made by thermally bonding the inner periphery of one end, the outer periphery of the other end, and the inner periphery of a moisture-proof cap. The contents of the present invention will be explained in more detail below based on the attached drawings.

In FIGS. 1 and 2, after a photographic film cartridge (not shown) is stored in a paper tube 1 which has been subjected to moisture-proof treatment, moisture-proof caps 6.6 are fitted to the openings at both ends of the paper tube 1. tube 1
The photographic film cartridge package of the present invention is constructed by thermally bonding the inner periphery of both ends of the cap 6.6 to the inner periphery of the moisture-proof cap 6.6.

The paper tube is hollow circular paper tube 1 or 4 as shown in Figure 1.
1! As shown in I, a hollow polygonal cylindrical paper tube 2 is possible. In both cases, the internal dimensions are 0.0 mm larger than the external dimensions of the photographic film cartridge. 5-3. 0- It is made as large as the intestine.

The paper tube 1 or the paper tube 2 can be manufactured by winding a paper material slit into a long thin tape in multiple layers in the shape of a black line, or by simply winding it flatly in the circumferential direction, and the material is selected based on its rigidity and formability. However, paper tube layer, paper, corrugated board liner, etc. are suitable.The number of turns is determined based on the required rigidity and the thickness of the selected material, but it is preferably 0°7 or more.

To apply moisture-proofing to the paper tube 1 or 2, apply A on the inner circumference.
It is also effective to laminate a plastic film coated with l11i or AI, a plastic film with excellent barrier properties, or a laminate thereof to a paper material, and if necessary, laminate an xm shield such as lead foil. The Al foil usually has a thickness of about 7 μm to 20 μm, and the AI vapor-deposited film is preferably a film made of nylon, PET, etc. with a thickness of 50 μm or less and Al vapor-deposited with a thickness of 200 A or more.

Plastic films with excellent barrier properties include polyethylene and polypropylene with excellent moisture resistance, olefin 41N, nylon with good gas barrier properties, ethylene vinyl alcohol copolymer, and vinyl chloride and vinylidene chloride, which have both properties. Alternatively, a coated material may be selectively used in the coextrusion or lamination area.

As the material for the moisture-proof cap 6.6, a laminated material containing Al foil is preferable because it is necessary to maintain the fitted state, and usually paper or plastic film/Alt! / Consisting of a hot melt adhesive or adhesive resin layer, or a layer thereof.

The cross section of No. 11!1(a) is shown in FIG. 1(b).
An enlarged view of the section is shown in No. 111(c).To explain this in more detail, the paper tube l has a thickness of 0. 5-1 paper receipt form 11 2
It is made of PE that is wound around the inner circumference and subjected to AI steaming @400A.
A 25μ T film was used as the barrier material 12 and was bonded to the paper material using LDPE 15μ as the adhesive layer 14. In addition, a sealing layer 13 is provided on the surface of the Al-deposited PET film.
LDPE 20μ is provided as a. Cap 6 is support 6
1 as art paper 81. 4g/& is a laminated material using LDPE 13μ as the adhesive layer 64 and LDPE 20μ as the AII2O3 seal 163 as the barrier M62. By thermally bonding 63 at the fitting portion 5, the inner wall of the package is sealed. FIG. 2 shows the end of the paper tube deformed outward, and the structure is the same as that in FIG. 1. This shape makes it possible to apply sufficient pressure to the fitting part 5 by supporting it from the outside of the paper tube 1 when heat-sealing the inner surface of the cap and the inner periphery of the paper tube with the fitting part 5 in FIG. 2C. A stable sealed state can be obtained.

Figure 3 shows the case where the bottom tube is sealed on the outside. In this case, as shown in the cross-sectional view in Figure 3 (C), by providing LDPE 30μ as a barrier layer 21 on the outer periphery of the paper tube, heat sealing is possible. The top part is 5' and the bottom part is 5' to obtain a sealed package. FIG. 5 shows an example in which a reinforcing material 7 is fitted to protect the moisture-proof cap 6, and FIG.
This is an example in which is fixed to a moisture-proof cap with adhesive 8. In this case, in order to drop the inner periphery of the moisture-proof cap onto the inner periphery of the paper tube and adhere it, it is preferable to use a thin, flexible cap material as this will ensure sealing stability.
This reinforcing material prevents the cap material from tearing or the adhesive portion from peeling off even when a large compressive force is applied to the paper tube or a large drop impact is applied while the package is in place.

To explain one specific example, a reinforcing plate of a size that can be fitted to the inner cylinder of the paper tube is inserted into the part where the cap material is fitted, and an example is shown in Fig. 5. 7 used 500 g/tn' paperboard. If necessary, the reinforcing plate 7 may be fixed with an adhesive 8 as shown in FIG. 6. A heat seal can be easily created by adjusting the shape of the seal head of a commercially available heat sealing machine to match the shape of the present invention. be done. Appropriate seal width is 1 to 3 I. In addition, it is possible to thermally seal both ends of the paper tube either simultaneously or sequentially, and in the case of sequential sealing, the photographic film cartridge can be stored in the paper tube either before or after one side is sealed. . The moisture-proof cap 3゜3 is created by punching out the moisture-proof cap material described above.
By providing this, the package of the present invention can be easily opened.

[Effects of the Invention] According to the present invention, since the packaging body is mainly composed of a paper tube that naturally decomposes or is easily incinerated, it is possible to realize a photographic film cartridge packaging body that is small, lightweight, and suitable for waste disposal. done.

In addition, by providing a barrier layer on the inner periphery of the paper tube and heat-sealing that surface, it is possible to use paper material made from recycled bulbs as base paper for the paper tube, instead of paper materials made from virgin bulbs, which have little photographic impact. It is also useful for saving resources.

The photographic film cartridge container of the present invention can store various photographic film cartridges, and examples of photographic film cartridges suitable for storage include those shown in FIGS. 3 to 10.

A photographic film cartridge 240 shown in FIG. 133 has a pair of ribs 242 and 243 integrally formed on the inner wall of a cartridge main body 241 along the circumferential direction. These ribs 242 and 243 abut against the outer peripheral surface of the film 246 to prevent it from unraveling. These ribs 242 and 243 are in contact with the leading edge of the film 246 and hold it against the film 246.
Tip separating claws 247 and 249 are formed to separate from the outer circumferential surface of 46. Further, the cartridge lid 250 is provided with a pair of terminals 251 and 252. In the photographic film cartridge 240 configured in this way, the spool 2
53 is rotated clockwise, the leading edge of the film 246 is immediately rotated clockwise. And film 2
The tip of the cartridge 46 is separated from the outer circumferential surface by the tip separating claws 247 and 249, and is removed from the cartridge main body 241 through the drawer opening 255.
be sent outside.

The photographic film cartridge 256 shown in FIG. 4 has a pair of projections 257 and 259 formed on the inner walls of the cartridge main body 241 and the cartridge lid 250 so as to face each other.

The protrusions 257, 259 abut the flanges 260, 261 of the spool 253, respectively, and press and bend them inward. This pressed bent flange 260.26
1 holds both ends of the film 2460 and holds the film 24
6 is prevented from peeling off from the outer peripheral surface of the film 246. Therefore, the film 246 is
3, the spool 253 can be rotated and the film can be initially fed.

The photographic film cartridge 262 shown in FIG. 5 has a pair of grooves 263 along the circumferential direction on the inner wall of the cartridge main body 241.
．． 265 is formed. This pair of grooves 263, 26
6 is fitted with rings 266 and 267. These rings 266 and 267 press against the outer peripheral surface of the film 246 to prevent it from unwinding. Then, when the spool 253 is rotated and the tip of the film 246 is rotated upward in the figure, the tip of the film 246 is released from the ring 266, 267, and the tip separation claw 247, 249 moves the tip of the film 246 toward the outer peripheral surface of the film 246. It is peeled off from the container and sent out toward the drawer opening.

The photographic film cartridge 269 shown in FIG.
2.273 is provided. These claws 272 and 273 come into contact with the outer peripheral surface of the film 246 to prevent the film 246 from unwinding. These claws 272
．． 273 comes into contact with the side surfaces of the tip separating claws 247 and 249 and is pushed outward as shown. Therefore, the tip of the film 246 is rotated and the tip separation claw 247.2
49, the tip is released from the restriction of the claws 272 and 273, peeled off from the outer peripheral surface of the film 246, and sent out toward the drawer opening.

71st! Photographic film cartridge 2 shown in I and FIG.
75, the spool 276 is two spool pieces 277.2
Consists of 78. This spool piece 2770 cylindrical shaft 27
9, a shaft 280 of the spool piece 27B is slidably inserted. A protrusion 279a is formed on the outer peripheral surface of the shaft 279, and this protrusion 279&
It is fitted into a groove formed in 0. Further, the tip of the shaft 280 has a slope 2 formed on the shaft 279 as shown in FIG.
It is engaged with the tip of 81, and the spool piece 277.27B
is maintained as a whole in an axially extended state. Further, the spool pieces 277 and 278 are each provided with flanges 282 and 283 whose outer peripheries are slightly recessed inward. Furthermore, ribs 284 and 285 are formed on the inner wall of the cartridge main body 241 along the circumferential direction. These ribs 284 and 285 abut against the outside of the film 246 wound on the spool piece 277 to prevent the film 246 from unwinding. For this reason, the spool piece 277
When the film 246 is rotated, the leading end of the film 246 is sent out of the cartridge main body 241 in the same manner as shown in FIG.

Then, when the spool piece 277 is rotated, the spool piece 278 slides to the left in the figure by a cam groove (not shown), so that the tip of the shaft 2'80 moves toward the shaft 278 as shown in FIG.
9 engages with the entire slope 281. After this, spool 27
6 is in a contracted state as a whole, and holds both ends of the film 246. Therefore, even if the outer peripheral surface of the film 246 does not come into contact with the ribs 284 and 285 after the film 246 is fed out of the cartridge main body 241, it will not unwind as shown in the figure.

Photographic film cartridge 29 shown in Figure 9 and Figure 1O
0 is composed of a spool 292 wound with photographic film 291 and a cartridge body 293. The cartridge body 293 has a lid portion 296 having protrusions 295 and 295.
and a body protrusion 197.197. Lid part 296
is always biased toward the battlerone body 293 due to the elasticity of the resin material itself. Lid part 29
The protrusions 295 and 295 of No. 6 are provided with through holes 295a, 295a at approximately the center thereof.
5a and 295a are fitted with body projections 297 and 297.

Normally, when outside the camera (not shown), the lid 296
is biased toward the patrone body 293 side, so that the through holes 295&, 295a of the lid portion 296 are inserted into the body protrusion 293.
97 and 297 are in a fitted state, and the photographic film 291 wound around the spool 292 is maintained in a light-tight state.

When the photographic film cartridge 290 is loaded into the camera, one or both of the protrusions 295 and 295 of the lid portion 296 are pressed by a camera member (not shown) inside the camera. As a result, the through hole 295a of the lid portion 296
, 295a and body protrusion 297, 297 are disengaged,
An exit opening 299 is formed and the light tight state of the photographic film 291 is released.

In this state, when the photographic film 291 is pulled out and subjected to image exposure and then rolled up again into the cartridge body 293, the protrusion 29δ of the lid portion 296 is moved by the camera member.
295 is pressed. As a result, the protrusions 295 and 296 of the lid portion 296 are again connected to the body protrusion 297.
．． 297 is fitted, the exit opening 299 is closed, and the photographic film 291 is placed in a light-tight state.

C Embodiment 1a] The present invention is not limited to the above-described embodiment M, and can be modified in various forms within its technical scope, including the following.

(1) The package for a photographic film cartridge according to claim (1) or (2), in which the moisture-proof cap is provided with a tab to facilitate opening. (2) The sealing layer of the cap portion can be peeled off by variously devising the composition of the sealing layer. A package for a photographic film cartridge according to claim (1) or (2) in which the strength is reduced (3) A claim in which a tab is also provided on the reinforcing plate and the tab is used to make the package easier to open. Paragraph (1) or (2)
Package for photographic film cartridge described in

[Brief explanation of drawings]

Figure 1 (a) 21st! I (a) 31st! I(a) 4th
1!1 is a perspective view showing an embodiment of the package for a photographic film cartridge according to the present invention, and FIG. 1(b), FIG. 2(b), and FIG. 3(b) are respectively (a) B! X-Y cross-sectional view of l Figure 1 (c) Figure 2 (c) Figure 3 (c) are respectively (b)
These are partially enlarged views of A, B, C, and D of the figure. FIG. 5 is a perspective view of the reinforcing material of the present invention fitted, and FIG. 6 is a sectional view showing the fitted state. FIG. 2 is a diagram showing a photographic film cartridge that can be stored in a container. 1, 2. 3. Paper tube 5.5'... Sealing part 6 between paper tube and cap material...
Moisture-proof cap 7... Reinforcement material 8... Adhesive 9, φ, opening tab 11.22... Paper material 12.23... Inner peripheral barrier layer 13.25... PE layer for sealing 14.24... Lamination adhesive layer 21... Outer barrier/adhesive layer 61... Paper material 62... AI foil 63... PE layer for sticker/Lamination adhesive layer

Claims (4)

[Claims] (1) After storing a photographic film cartridge in a moisture-proof paper tube, fit moisture-proof caps into the openings at both ends of the paper tube, and heat-bond the inner circumferences of both ends of the paper tube and the inner circumference of the moisture-proof cap. A packaging body for a photographic film patrone. (2) After storing a photographic film cartridge in a paper tube that has been subjected to moisture-proof processing, fit moisture-proof caps into the openings at both ends of the paper tube, and connect the outer periphery of one end of the paper tube and the inner periphery of the moisture-proof cap. and the inner periphery of the other end of the paper tube and the inner periphery of the moisture-proof cap are thermally bonded to each other. (3) The package for a photographic film cartridge according to claim 1 or 2, wherein at least one open end of the paper tube is deformed outward. (4) The package for a photographic film cartridge according to claim (1) or claim (2), wherein a reinforcing material is layered on the outer periphery of the moisture-proof cap and fitted to the inner periphery of the paper tube.