JPH07104436A - Packing bag for film unit with lens - Google Patents

Abstract

PURPOSE:To provide a packing bag for a film unit with a lens, which can be efficiently manufactured at low cost without impairing moisture resistance. CONSTITUTION:The packing bag 13 is formed out of packing material where transparent films are laminated, a window section 13c which is transparent as a whole, is formed in a portion covering the front and bottom faces of a film unit with a lens 10, which is to be packed inward, and opaque printing is applied to a portion left behind by the window section 13c. Decorative print appearing on the front surface of an outside packing case for the film unit with a lens 10 can be observed, and the kind of the film unit with a lens 10 can thereby be easily recognized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens-equipped film unit packaging bag, and more particularly to a lens-equipped film unit packaging bag that can be manufactured efficiently and inexpensively.

[0002]

[Prior Art] Film units with lenses such as "Sharp Run High" and "Sharp Run Panoramic" (both are brand names) from the applicant have been made available so that you can easily enjoy photography at a low price. It is commercially available. These lens-fitted film units are widely used because they can be taken immediately on the spot when they are purchased, and they can be taken to a development handling store as they are after shooting.

Since the photographic film is loaded into the lens-fitted film unit during the manufacturing process, it is necessary to protect the photographic film from moisture from the time it is manufactured until it is actually used by the user. . Therefore, the lens-fitted film unit is individually packaged in a moisture-proof packaging bag and shipped from the manufacturer, and the user opens the packaging bag at the time of use.

As a material for a packaging bag having such a purpose, a laminate of an aluminum sheet and a resin sheet is used. For example, as shown in FIG. ) Layer 3, a printing ink layer 4 and a polyethylene terephthalate (PET) layer 5 on the front surface, and an ethylene vinyl acetate copolymer resin (EVA) layer 6 on the back surface are often used as packaging materials. Such a packaging material has a high moisture-proof function and is suitable as a material for a packaging bag for a lens-equipped film unit.

[0005]

However, since the conventional packaging bag uses the aluminum sheet as described above, the aluminum remains unburned even after the incineration process and creates non-combustible dust, which causes environmental problems. Causing the problem. Therefore, it has been proposed to use an aluminum vapor-deposited film instead of the aluminum sheet, but the aluminum vapor-deposited film has low moisture resistance and is insufficient to guarantee the performance of a photographic film.

Furthermore, when an aluminum sheet or an aluminum vapor-deposited film is used as a packaging material, since aluminum is a silver-white and opaque metal, cosmetic printing is applied to the entire front surface side of the packaging bag. Need to be clean. For this reason, it is necessary to change the printing design according to the type of lens-fitted film unit to be packaged inside, which is very inefficient when manufacturing specially ordered products, especially those with small quantities, leading to cost increase. It will be. In order to solve such problems, there is a transparent packaging material that uses a film made of polyvinylidene chloride-based synthetic fiber (Saran film), and this packaging material also guarantees the performance of the photographic film due to its moisture resistance. It is not at a level you can do.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a packaging bag for a lens-equipped film unit which can be manufactured efficiently and inexpensively without impairing moisture resistance. And

[0008]

In order to achieve the above object, the packaging bag for a lens-fitted film unit of the present invention comprises:
A window portion in which the portion covering the front surface of the lens-fitted film unit is made transparent, and a print display portion in which the portion covering the back surface of the lens-fitted film unit is made entirely opaque,
Through the window, the decorative basic pattern pattern appearing on the surface of the exterior body of the lens-fitted film unit and the additional pattern applied on the basic pattern pattern can be observed. Further, the exterior body of the lens-fitted film unit may be made of photographic paper so that the pattern printed on the photographic paper can be observed through the window of the packaging bag.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows an example of the lens-fitted film unit 10. The unit main body 11 is mainly made of plastic and incorporates a simple photographing mechanism.
A 135 film with a cartridge is preloaded so that it cannot be taken out by the user. The unit main body 11 is covered with an outer case 12 whose outer surface is printed to make its appearance beautiful, and a photograph is taken with the outer case 12 kept in the outer case 12. The outer case 12 is printed with a different basic pattern pattern for each type of the lens-fitted film unit 10, and for a small number of specially ordered products, an additional pattern is printed on the basic pattern pattern. Is given.

FIG. 1 shows a packaging bag in which a lens-fitted film unit is wrapped. Packaging bag 13
Encloses the lens-fitted photo film unit 10 in a so-called pillow packaging form, and one of the projecting pieces 13
A hole 14 for suspending the hanger is provided in a.
In addition, the protruding piece 13b is provided so that the packaging bag 13 can be easily opened.
The end of is cut wavy. Further packaging bag 13
Has a transparent window portion 13c formed in a portion covering the front surface and the bottom surface of the lens-fitted film unit 10, and an opaque print is applied to a portion other than the window portion 13c. Then, the lens-fitted film unit 10 is displayed in a state of being airtightly packaged in the packaging bag 13 while being hung at the store. It is not necessary to suspend specially ordered items such as gifts for display at the store,
Hole 1 for hanging the hanger with a small protruding piece 13a
4 may not be formed.

FIG. 3 shows the layer structure of the packaging bag 13, in which the upper side shows the front side in contact with the outside air and the lower side shows the back side in contact with the lens-fitted film unit 10. The packaging bag 13 is composed of a plurality of transparent plastic film layers, and is mainly composed of the ceramic vapor deposition film 15. A PE (polyethylene) film 16 is provided on each side of the ceramic vapor deposition film 15.
a and 16b are laminated. A printing ink layer 17 is formed on the surface layer of the PE film 16a on the surface side by applying opaque printing for makeup, and a transparent PET (polyethylene terephthalate) film 18 is laminated thereon as a protective layer. ing. Further, an EVA (ethylene vinyl acetate copolymer resin) film 19 is laminated under the PE film 16b provided on the back surface side.

In the ceramic vapor deposition film 15, SiOx (silicon oxide) is heated and evaporated under vacuum, and the vapor is condensed on the surface side of the PET film 20 under the same vacuum to form a thin SiOx layer 21. It is a thing. S
The iOx layer 21 has excellent moisture resistance because it has extremely low moisture permeability, and has excellent heat resistance, aging resistance, chemical resistance, etc. in addition to mechanical strength. The SiOx layer 21
The formation position is not limited to the front surface side of the PET film 20, but may be formed on the back surface side of the PET film 20. The plastic film on which silicon oxide is vapor-deposited may be one having a good adhesion to the vapor-deposited substance and transparency, and other than the PET film, for example, a PE film or an UP (unsaturated polyester) film can be used. You may use. Further, the substance deposited on the plastic film is not limited to SiOx, and other ceramics such as Al ₂ Ox may be used.

Each film 15, 16, 18, 19
1 is a uniaxially stretchable film, and the films are laminated so that the respective stretching directions are in the horizontal direction in FIG. The printing ink layer 17 is not formed on the entire surface of the packaging bag 13, but the film unit with lens 10 is provided.
Is formed so as to avoid the window portion 13c that covers the front surface and the bottom surface of the.
In the packaging bag 13, since all of the laminated ceramic vapor deposition film 15, PE films 16a and 16b, PET film 18, EVA film 19 are transparent films, the window portion 13c where the printing ink layer 17 is not formed is formed. Remains transparent.

When the assembling of the lens-fitted film unit 10 is completed, the lens-fitted film unit 10 is individually sealed and housed in the packaging bag 13 having the above-mentioned configuration. At this time, regardless of the type of the lens-fitted photo film unit 10, all of them are immediately packaged in the ready-made packaging bag 13. The lens-fitted film unit 10 hermetically stored in the packaging bag 13 is shipped to each retail store,
It is hung at each store and displayed.

The purchaser selects and purchases a variety of kinds of lens-fitted film units 10 according to the intended use. At this time, since the front surface portion of each packaging bag 13 is formed entirely transparent, the purchaser can observe the lens-fitted film unit 10 housed therein, and the lens-fitted film unit 10 can be observed. The type and application can be easily identified from the design of the outer case 12 of 10.

At the time of photographing, the photographer tears the packaging bag 13 from the corrugated portion formed at the end of the protruding piece 13b to open it, and takes out the lens-fitted film unit 10. At this time, the films 15, 16, 1 constituting the packaging bag 13
Since a uniaxially stretchable film is used for 8 and 19 and the respective stretching directions are aligned in the same direction, when the packaging bag 13 is torn from the corrugated portion, a straight tear is made in accordance with the stretching direction, and the packaging bag 13 is easily formed. Can be opened.

Further, since the ceramic vapor deposition film 15 is provided in one of the film layers constituting the packaging bag 13, the lens-fitted film unit 10 which is hermetically housed inside is protected from the humidity of the outside air. The performance of the photo film is not impaired. Furthermore, since the opaque printing ink layer 17 is formed except for the front and bottom portions of the packaging bag 13, the light shielding property of the packaging bag 13 is more reliably maintained. Therefore, the photographer can take a good picture by using the lens-fitted film unit 10.

In the above embodiment, the basic pattern pattern is printed on the outer case made of paper, and the special pattern product such as a gift is printed with the additional pattern on the basic pattern pattern. However, an additional pattern such as a company name may be stamped with a hot stamp for a particularly small number. Alternatively, the outer case may be formed of photographic paper, and a decorative pattern may be printed on the outer case. According to these embodiments, printing can be performed in a shorter time than printing is performed, and the printing plate for printing the outer case is not required, so that the manufacturing cost can be significantly reduced.

Further, in the above embodiment, the corrugations are formed at the ends of the projecting pieces in order to facilitate the opening of the packaging bag, but the notches for opening may be formed in the hanger portion or the center seal portion. Good. Further, in order to make it easier to tear the packaging bag in a certain direction, the films are laminated so that the stretching directions thereof are aligned. However, as shown in FIG. 4, a tear tape 26 is provided on the packaging bag 25 so that the packaging bag 25 can be easily opened. You may be able to do it. In addition, perforations may be formed in a part of the laminated film layers along the tearing direction.

Further, in the above-mentioned embodiment, the packaging material is constructed by stacking the plastic films centering on one ceramic vapor deposition film, but as shown in FIG. 5, the SiOx layer 31 is formed on the back side of the PET film 30. If the second ceramic vapor deposition film 32 having the above-mentioned structure is layered on the uppermost layer, it is more effective to secure moisture resistance.

Further, in the above embodiment, the ceramic vapor deposition film having a moisture-proof function and the film for forming the printing ink layer were separately provided, but as shown in FIG.
The printing ink layer 43 is formed on the front surface side of the ceramic vapor deposition film 42 in which the SiOx layer 41 is formed on the rear surface side of the T film 40.
May be formed, and the front and back of the film may be sanded with the PET film 44 and the LLDPE (linear low density polyethylene) film 45 which act as protective layers. Further, as shown in FIG. 7, the printing ink layer 43 is formed on the front surface side of the ceramic vapor deposition film 42, and the front and back of this film are formed on the back surface side of the PET film 50 by the ceramic vapor deposition film 52 on which the SiOx layer 51 is formed. And the LLDPE film 53 may be sandwiched. However, in this case, the printing ink layer 43 and SiO
Since the x layer 51 is joined, it is preferable to use dry lamination for joining the films. According to these layer configurations, the number of films to be layered can be reduced, so that the cost can be reduced and the number of steps for laminating and joining can be reduced to shorten the manufacturing time.

The following Table 1 shows a sample A of a packaging bag in which the front and back of the ceramic vapor deposition film are sandwiched between PET film and LLDPE film, and the front and back of the first ceramic vapor deposition film are the second ceramic vapor deposition film and L.
Packaging bag sample product B, sanded with LDPE film
C is prepared, and the results of measuring the respective amounts of moisture absorption by the JIS cup method are summarized. Each sample product A ~
The ceramic vapor deposition film used for C is a tech barrier (glass vapor deposition film), the first ceramic vapor deposition film position of the sample product A and the sample product B is "S type", and the first ceramic vapor deposition film of the sample product C is The position and the position of the second ceramic vapor deposition film of the sample products B and C were of "H type". Further, the films of the sample products A to C were joined by dry lamination. For comparison, Saran film is PE
Regarding sample product D sanded with T film and LLDPE film and dry laminated, and sample product E sanded with aluminum vapor deposition film with PET film and LLDPE film and dry laminated,
The measurement results are also shown.

[0023]

[Table 1]

In Table 1, the smaller the amount of moisture absorption, the better the moisture resistance. A large amount of moisture is recognized in each of the sample product D using the Saran film and the sample product E using the aluminum vapor deposition film. On the other hand, sample products A to C using a ceramic vapor deposition film
In both cases, the moisture absorption amount is about 1/10 of that of the sample products D and E. From the above results, it was confirmed that the ceramic vapor-deposited film is superior in moisture resistance to the Saran film and the aluminum vapor-deposited film, and that the use of this ceramic vapor-deposited film as the packaging material is effective for ensuring the moisture resistance. In particular, it was confirmed that the moisture-proof effect can be further enhanced by increasing the number of layers of the ceramic vapor deposition film.

[0025]

As described above, according to the present invention, a transparent film is used for all of the film layers constituting the packaging material, and a transparent window is provided on the front and bottom of the packaging bag. Since it is formed, the lens-fitted film unit packaged inside can be observed from the outside, and the type and application can be easily identified from the design of the outer case. Therefore, it is not necessary to describe the type of the lens-fitted film unit to be packaged inside the packaging bag, and the packaging bag of the same design can be shared by all types of lens-equipped film units. Further, regardless of whether it is a general-purpose product or a special order product, the lens-fitted film unit can be hermetically housed in an existing packaging bag immediately after the assembly is completed, and the manufacturing time thereof can be shortened.

The outer case of the lens-fitted film unit is uniformly printed with a basic pattern pattern, and for a small number of specially ordered products, a unique additional pattern is formed on the basic pattern pattern. Since the printing is performed in an overlapping manner, the printing plate for printing the outer case can be shared with the general item and the special order item, except for the printing of the additional pattern, and the production cost can be reduced.

Furthermore, since a ceramic vapor deposition film obtained by vapor-depositing ceramics on a plastic film is used for one of a plurality of film layers constituting the packaging material,
It is possible to maintain a level of moisture resistance that can guarantee the performance of the photographic film.

[Brief description of drawings]

FIG. 1 is a perspective view of a packaging bag accommodating a lens-fitted film unit.

FIG. 2 is a perspective view showing an example of a film unit with a lens.

FIG. 3 is a cross-sectional view showing the layer structure of the packaging bag of FIG.

FIG. 4 is a perspective view showing a second embodiment of the packaging bag.

FIG. 5 is a sectional view showing a second embodiment of the layer structure of the packaging bag.

FIG. 6 is a sectional view showing a third embodiment of the layer structure of the packaging bag.

FIG. 7 is a sectional view showing a fourth embodiment of the layer structure of the packaging bag.

FIG. 8 is a cross-sectional view showing a layer structure of a conventional packaging bag.

[Explanation of symbols]

 10 film unit with lens 12 outer case 13,25 packaging bag 13c window 15,32,42,52 ceramic vapor deposition film 17,43 printing ink layer

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B65D 85/38

Claims (3)

[Claims] 1. A laminate of a plurality of film layers,
In the packaging bag for the lens-equipped film unit, which seals and wraps the lens-equipped film unit whose surface is covered with an exterior body, the entire window covering the front surface of the lens-equipped film unit and the rear of the lens-equipped film unit are covered. A packaging bag for a lens-equipped film unit, comprising a printed display portion in which a covering portion is made opaque as a whole. 2. The decorative basic pattern pattern appearing on the surface of the exterior body and the additional pattern applied on the basic pattern pattern are observed through the window portion. The packaging bag for a film unit with a lens according to 1. 3. The packaging bag for a lens-equipped film unit according to claim 1, wherein the exterior body is made of photographic paper, and the pattern printed on the photographic paper is observed through the window.