JP2002328449A - Photographic sensitive material wrapping body, manufacturing method of photographic sensitive material wrapping body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide photographic sensitive material wrapping bodies in which a photographic sensitive material cartridge is housed in a container which is easily opened in the winter and has excellent moisture-proofing in the summer of high temperature and high humidity, and to provide the manufacturing method of these photographic sensitive material wrapping bodies. SOLUTION: The container consists of a cylindrical main body case made of thermoplastic resin having an aperture to one end of which a cap can be attached and which has a bottom at the other end, and a cap to seal the aperture. In the photographic sensitive material wrapping body, a photographic sensitive material cartridge in which unexposed photographic sensitive materials wound up by a shaft are incorporated in a state of light tightness is housed in the container, and the aperture is sealed by the cap by inserting an unsealing assisting member between the aperture of the container and the fitting part of the cap.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic photosensitive material package in which a photographic photosensitive material cartridge in which an unexposed photographic photosensitive material wound around a shaft is housed in a light-tight state is stored in a storage container, and a photograph thereof. The present invention relates to a method for manufacturing a photosensitive material package.

[0002]

2. Description of the Related Art Currently, 135-size films sold on the market are made of light-shielding materials such as resin cartridges (patrone) and metal cartridges (patrone) standardized (ISO standard) in a state wound around a shaft. After being stored in the container, it is placed in a moisture-proof storage container made of a thermoplastic resin, and further, these are put in a paper box printed with an identification design or a bag made of a thermoplastic film to form a package.

In the case of an advanced photo system compatible film (hereinafter referred to as an APS film), the film is wound around a shaft and stored in a light-shielding resin cartridge in the same manner as in the case of a 135-size film, and then made of a thermoplastic resin. After being placed in a moisture-proof storage container, the package is put in an outer box on which an identification design is printed.

The functions required of the storage container include airtightness (moisture proof), cap removal, impact resistance, easy removal of the photosensitive material cartridge, and production efficiency, and the design is designed to meet these requirements. Is being done.
Of course, it is needless to say that the photographic light-sensitive material contained does not contain a substance harmful to the performance, or even if it does contain such a harmful amount, it does not affect the performance.

The environment in which photographic light-sensitive materials are used is widened from a low-temperature region to a high-temperature and high-humidity region, and a storage container capable of maintaining high-quality film performance is required for an environment from a low-temperature region to a high-temperature and high-humidity region. I have.

[0006] In the low temperature to room temperature range (-15 to + 25 ° C), it is desired that the cap of the storage container is more easily opened and the photosensitive material cartridge is easily taken out. Humidity 80-90
% RH), it is necessary to have airtightness to sufficiently maintain the performance of the film.

[0007] Under these contradictory environmental conditions, various studies have been made so far to maintain the quality of the photographic light-sensitive material and to facilitate the removal of the cap. For example, JP-A-6-66521 and JP-A-6-19054 disclose a technique in which the structure of a cap and a storage container main body and the materials used are specified. Although these studies have improved the cap removability, at present the cap removability in the low-temperature region is still not sufficient.

Needless to say, storage containers for the low-temperature region and for the high-temperature and high-humidity region can be made separately. However, at present, the management of materials and the management of products are complicated and cannot be actually performed. In the high-temperature and high-humidity area, the cap can be removed just by dropping the storage container, or the sealing performance is poor, because the cap is designed mainly to remove the cap in the low-temperature area.
Because the performance of the stored photographic light-sensitive material deteriorates,
At present, the design of storage containers is tailored to warm regions.

Therefore, in the winter season, when photographic photosensitive material is purchased at a store and loaded into a camera, the cap of the storage container is difficult to remove. Carefully remove the cap so as not to damage the nail, and take out the photographic photosensitive material cartridge. There is a demand in the market for the development of a photographic photosensitive material package in which a photographic photosensitive material cartridge is housed in a container that is easily opened even in winter and has excellent moisture proofness even in summer when temperature and humidity are high.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a photographic photosensitive material cartridge in a storage container which is easy to open even in winter and has excellent moisture proofness even in hot and humid summer. An object of the present invention is to provide a package of stored photosensitive material and a method of manufacturing the package.

[0011]

An arrangement for achieving the above object of the present invention will be described below.

1) A storage container comprising a tubular main body case made of a thermoplastic resin having an opening at one end to which a cap can be attached and a bottom at another end, and a cap for sealing the opening. In a photographic photosensitive material package containing a photographic photosensitive material cartridge in which an unexposed photographic photosensitive material wound around a shaft is housed in a light-tight state, the photographic photosensitive material package is opened at the fitting portion between the opening of the storage container and the cap. A photographic light-sensitive material package, wherein an auxiliary member is interposed therebetween, and the opening is sealed by the cap.

2) The opening assisting member has a thickness of 10 to 50 μm.
m, tensile strength 700 × 10 ^{6 to} 17600 × 10 ⁶ Pa
The photographic light-sensitive material package according to 1), wherein the film is a film.

3) The identification information of the photographic material is displayed on the film of the opening assisting member. 1) or 2).
3. The package of the photosensitive material according to item 1.

(4) The package of the photographic photosensitive material as described in any one of (1) to (3) above, wherein an opening knob is provided on the film of the opening assisting member.

5) The method of manufacturing a photographic photosensitive material package according to any one of 1) to 4), wherein the photographic photosensitive material cartridge is supplied to a main body case of a storage container, and then the film is used as an opening assisting member. A photographic light-sensitive material package, wherein the liquid is supplied to the opening and the opening is fitted and sealed by a cap.

6) The method of manufacturing a photographic photosensitive material package according to any one of 1) to 4), wherein the photographic photosensitive material cartridge is supplied to a main case of the storage container, and then the main case of the storage container is supplied. A method of manufacturing a package of a photographic photosensitive material, characterized in that a film of an opening assisting member is tightly coated on the outer peripheral portion and the inner side of the peripheral portion of the opening, and then the opening is fitted and sealed with a cap.

The inventor of the present invention has conducted intensive studies on the above-mentioned problems. As a result, when the cap of the storage container is removed from the main body case, the cap is fitted to the portion fitted to the peripheral edge of the opening of the main body case. It was found that it was necessary to apply a certain level of stress, and to apply a certain level of stress, it was found that applying a stress in a wide range rather than a narrow range required less force.

When removing the cap of the storage container, the fingertip is often hung on the outer periphery of the cap, but in this case, the stress is applied only in a narrow range, and it is difficult to obtain a certain level of stress.

In particular, when the temperature is lowered, since the storage container is made of a thermoplastic resin material, the flexural modulus of the thermoplastic resin material is increased, and it becomes more difficult to apply a certain level of stress, and it is difficult to remove the resin. I found out.

In order to apply a certain level of stress with a weak force,
It was found that it was important to apply force in width, and it was found that widening the width of application of stress significantly improved the disengagement of the cap, and this has led to the present invention.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 to 6, but the present invention is not limited to this embodiment.

The film as an opening assisting member of the present invention includes a film produced without stretching and a film produced after stretching, and a film produced without stretching is hereinafter referred to as a sheet film. The film stretched and manufactured later is called a shrink film.

FIG. 1 is a schematic perspective view of a photographic photosensitive material package in which an opening assisting member is sandwiched between an opening of a storage container and a fitting portion of a cap. FIG. 1A is a schematic perspective view of a package when a sheet film is used as an opening assisting member. FIG. 1B is an exploded schematic perspective view of FIG. 1A.

In the drawing, reference numeral 1 denotes a photographic light-sensitive material package, 2 denotes an opening 201 to which a lid can be attached at one end, and a bottom 202.
, 3 denotes a cap for closing the opening 201, and 4 denotes a sheet film of an opening assisting member. Reference numeral 5 denotes a photographic material cartridge in which an unexposed photographic material wound around a shaft is built in a light-tight state.

Reference numeral 301 denotes a pressing portion of the photographic photosensitive material cartridge 5 stored in the main body case 2, and 302 has an outer wall 303 and an inner wall 304, and is engaged with the peripheral edge of the opening of the main body case 2. 4 shows an outer cylindrical portion having a joining portion.

Reference numeral 203 denotes a peripheral portion of an opening of the main body case 2 having a surface which is tightly fitted with the cap 3. The sheet film 4 covers the entire surface of the opening 201 and is held by an outer cylindrical portion 302 having a fitting portion that fits and locks with the peripheral edge of the opening. Reference numeral 401 denotes an opening knob provided on the sheet film 4. At the time of opening, the cap 3 can be easily opened by pulling the knob piece 401 for opening upward (in the direction of the arrow in the figure).

FIG. 2 is a schematic sectional view of the package shown in FIG. FIG. 2A is a schematic sectional view taken along the line AA ′ of FIG. FIG. 2B is a partially enlarged schematic cross-sectional view of a portion indicated by X in FIG.

In the drawing, reference numeral 305 denotes a projection provided on the inside of the outer wall 303 for retaining the main body case. A fitting portion is formed by an inner gap between the outer wall 303 and the inner wall 304 and the protrusion 305 for retaining.

Thick portion 20 having conical surface 206 at the base
The opening 201 of the main body case 2 is fitted and sealed by the cap 3 by fitting the peripheral portion 203 of the opening of the main body case 2 composed of the thin portion 4 and the thin portion 205 into the fitting portion of the cap.

As shown in FIG. 2B, the sheet film 4 is fitted to the fitting portion of the cap 3 and the peripheral portion 20 of the main body case.
3 is sandwiched. In this state, it is possible to apply a wide range of stress to the fitting portion of the cap by pulling the knob piece 401 provided on the sheet film 4 upward, and the cap 3 can be easily removed.

Reference numeral 501 denotes a shaft, 502 denotes an outer wall of the photographic material cartridge, 503 denotes photographic material wound around the shaft, and 504 denotes a lid of the photographic material cartridge.

FIG. 3 is a schematic perspective view of a photographic photosensitive material package in which another example of the opening assisting member is sandwiched between the opening of the storage container and the fitting portion of the cap. FIG. 3A is a schematic perspective view of a package when a shrink film is used as an opening assisting member. FIG. 3B is an exploded schematic perspective view of FIG.

In the drawing, reference numeral 6 denotes a photographic photosensitive material package. Reference numeral 7 denotes a shrink film as an opening assisting member. As shown in FIG. 3B, the shrink film 7 closely covers the outer peripheral portion, the peripheral portion 203, and the inside of the peripheral portion 203 of the main body case 2. .

In this state, the opening 20 of the main body case 2 is
1 is fitted into the fitting portion of the cap, so that the opening 201 of the main body case 2 is fitted and sealed by the cap 3, and the shrink film 7 is provided between the cap 3 and the peripheral portion 203 of the main body case 2. Can be sandwiched.

The shrink film 7 has a knob 701 at the lower edge, and a perforation 702 is formed at a portion covering the outer periphery of the main body case, and the knob 701 faces upward in the figure. By pulling in the direction of the arrow (in the direction of the arrow), the shrink film 7 is torn along the perforations 702, and temporarily stops at the protrusion 305 (see FIG. 4) inside the outer wall 303 of the cap 3 for retaining, but further upward. , The stress can be widely applied to the fitting portion of the cap, and the cap 3 can be easily removed. Other symbols are the same as those in FIG.

FIG. 4 is a schematic sectional view of the package shown in FIG. FIG. 4A is a schematic cross-sectional view along the line BB ′ of FIG. FIG. 4B is a partially enlarged schematic cross-sectional view of a portion indicated by Y in FIG.

Reference numerals have the same meanings as in FIGS. 1, 2 and 3. As shown in FIG. 4B, the shrink film 7 is sandwiched between the cap 3 and the peripheral portion 203 of the main body case. In this state, by pulling the knob piece 401 provided on the shrink film 7 upward, stress can be widely applied to the fitting portion of the cap, and the cap 3 can be easily removed.

Since the outer peripheral portion of the storage container is covered with the shrink film 7, it is also possible to display a design such as a product name, a product type, an expiration date, a production date and the like for identifying the product on the outer peripheral portion. For other uses, for example, print popular talents and popular animations, etc., and display them at stores as so-called character products, or print photos of tourist attractions at sightseeing spots and sell them as local souvenirs Can also.

The shapes of the main body case opening and the cap are not limited to the shapes shown in FIG. 2, but are effective for all shapes. For example, JP-A-6-665
No. 21, No. 6-19054, No. 4-340956,
The shape described in JP-A-8-324652 may, of course, be used.

The film as the opening assisting member of the present invention has a thickness of 10 to 50 μm and a tensile strength of 700 × 10 ⁶ to
It is desirable that the film be 17600 × 10 ⁶ Pa. If the thickness is less than 10 μm, the film may be cut at the time of opening depending on the structure of the main body case opening and the cap, and if the thickness exceeds 50 μm, the sealing degree may decrease depending on the structure of the main body case opening and the cap. is there.

When the tensile strength is less than 700 × 10 ⁶ Pa, the film may be cut depending on the structure of the opening of the main body case and the cap, and may be 17600 × 10 ⁶ Pa.
When it exceeds, the cap may not be able to be sealed depending on the structure of the main body case opening and the cap. The tensile strength is a value measured according to JIS K-6782.

The film as the opening assisting member of the present invention can be used without particular limitation as long as it has the required thickness and tensile strength.

When a sheet film is used as the opening assisting member, there is no particular limitation. For example, preferable films include polystyrene (PS), styrene acrylonitrile copolymer (SAN), acrylonitrile butadiene styrene copolymer (ABS), Polypropylene (P
P), a thermoplastic resin film such as polyethylene terephthalate (PET), polyamide (PA), and vinylon.

When a shrink film is used as an opening assisting member, there is no particular limitation as long as it satisfies the same characteristic values as the sheet film. For example, a preferable shrink film is a new packaging technology handbook (edited by Japan Packaging Technology Association). ) P1139 5-Materials described in Shrink Wrapping Technique, and thermoplastic resin films described in New Development of Toray Research Center Co., Ltd. Functional Packaging Materials.

The film used in the present invention can be prepared by the method described in the Plastic Processing Technology Handbook, edited by The Society of Polymer Science, pages 664 to 716.

Particularly, considering the recyclability after use, it is most preferable to use the same material as the storage container. For example, if the storage container is polyethylene, it is preferable to use polyethylene for the shrink film as the opening assisting member.

The thermoplastic resin-made cylindrical main body case and cap of the storage container can be manufactured by the injection molding method described in the Plastic Processing Technology Handbook, edited by The Society of Polymer Science, pp. 427-647, and used for these. The following describes the thermoplastic resin to be used.

The thermoplastic resin to be used is not particularly limited as long as it can be injection-molded as described in JP-A-3-129341, Handbook of Molding and Processing, 1993 edited by the Industrial Research Council. For example, high density polyethylene (HD
PE), polyamide (PA), polycarbonate (P
C), polyethylene terephthalate (PET), methacrylic resin (PMMA), polymethylpentene, polypropylene (PP), polystyrene (PS), styrene acrylonitrile copolymer resin (SAN), butadiene styrene copolymer resin, and the like. When HDPE is used, it is preferable to use HDPE produced using a metallocene catalyst.

The thermoplastic resin tubular body case and cap of the storage container may be made of biodegradable plastic in consideration of the case of landfill treatment as waste. For example, Cell Green (PCA, PH, PHB) manufactured by Daicel Chemical Industries, Ltd., Bionore (PBS, PBSA) manufactured by Showa Kogyo Co., Ltd., Lacti manufactured by Shimadzu Corporation, "Matterby" manufactured by Novamont, ICI "BI"
OPOL ", UCC" polycaprolactone "and the like, and can be selected as necessary. JP-A-3-12
It is also possible to use the photodegradable polymer described in No. 9341.

When sold at a store, the stored photographic material is protected from the heat rays of the sun by using a spectral wavelength of 70%.
It is preferable to include an infrared absorber that cuts out heat rays of 0 nm or more, preferably 1000 to 2500 nm, by 90% or more.

Examples of the infrared absorbing agent to be used include, for example, carbon black, triiron tetroxide (iron black), and a substance having absorption in the non-visible region (infrared region) and having absorption in the visible region. α-Ferric oxide (Bengara), titanium oxide, aluminum powder, iron powder, calcium carbonate, barium sulfate, clay and the like are used.

The addition amount of the infrared absorber is preferably in the range of 0.5 to 5% by mass. If the amount is less than 0.5% by mass, the effect as an infrared absorbing agent cannot be obtained. If the amount exceeds 5% by mass, the strength of the material becomes weak, which is not preferable.

The main body case and the cap of the storage container may be colored for improving the commercial value and the identities of the varieties, and it is also preferable that the so-called skeleton type is transparent or translucent. The inside may be seen from 1% to 60%. It may have metallic luster or pearl luster, or may have a printed pattern.

The colorant used is not particularly limited as long as it is a colorant generally used for plastic materials. Examples of the coloring agent used include coloring agents described in Plastics Encyclopedia, pages 736 to 744, published by Asakura Shoten Co., Ltd. When representative pigments are represented by color index numbers (CI numbers), for example, Pigment Red 48 (15865) and P
pigment Red4 (12085), Pigmen
t Red208 (12514), Pigment Y
yellow83 (21108), as a polycyclic pigment,
PigmentBlue15 (74160), Pigm
ent Violet19 (73900), Pigme
nt Yellow110 (56280), Pigme
ntRed149 (71137), Pigment R
ed177 (65300), Pigme as an inorganic pigment
nt Yellow53 (77788), Pigmen
t Yellow42 (77492), Pigment
Brown 6 (77491), Pigment Bl
ue29 (77007), Pigment Blue 2
8 (77346), Pigment Green 50
(77377), Pigment Green 17 (7
7288), Pigment White 4 (7794)
7), Pigment White 7 (77975),
Pigment White 6 (77891), Pig
Ment White18 (77220), Pigme
nt White 19 (77004), Pigment
White26 (77718), Pigment W
hit27 (77811), Pigment Bla
ck7 (77266), Pigment Black 1
1 (77499), Pigment Metal 1 (7
7000), Pigment Metal 2 (7740)
0). Daylight fluorescent pigments, titanium-coated mica, and the like are also known. Other inorganic pigments include carbon black, ferric oxide (iron black), α-ferric oxide (bengala), aluminum powder, iron powder, clay calcium carbonate, calcined clay, titanium oxide, zinc oxide, barium sulfate, and talc. , Aluminum sulfate, aluminum powder, aluminum paste, silica and the like. In particular, surface-treated titanium oxide, calcium carbonate, barium nitrate, aluminum powder, aluminum paste, and synthetic silica are preferable. In particular, since barium sulfate also has an X-ray blocking effect, it is most suitable as a container for photographic photosensitive materials for overseas travel.

It is possible to determine the amount to be used by appropriately adjusting it to obtain the required haze degree, and it is also possible to mix the pigments with each other to achieve a desired color.

Usually, the above pigments and infrared absorbers are added to the thermoplastic resin used in the present invention by a color compound method or a direct coloring method described in pages 324 to 351 of the Society of Polymer Processing Handbook, edited by The Society of Polymer Science, Japan. It is possible to add. For example, a so-called masterbatch containing calcium carbonate in a thermoplastic resin such as a polyethylene resin using a normal melt kneader such as a Banbury mixer kneader is prepared, and it is adjusted by diluting and mixing it to a required ratio with a diluting resin. It is generally known to adjust the so-called compound in which the required amount of calcium carbonate is contained in the resin from the beginning, or to adjust the dispersion of calcium carbonate in a latex liquid in which the resin is dispersed. Have been. At this time, in addition to calcium carbonate, fatty acid metal salts such as zinc stearate, calcium stearate, aluminum stearate, magnesium stearate, zirconium octylate, sodium barmitate, calcium palmitate, sodium laurate and an antioxidant are also used. can do. The colored resin is produced by the above method, and is used for manufacturing the photographic material cartridge of the present invention.

Next, a method of manufacturing the package shown in FIGS. 1 and 3 using the above-described sheet film, shrink film, thermoplastic resin cylindrical main body case and cap of the storage container will be described. I do.

FIG. 5 is a schematic view showing a method for manufacturing the photographic light-sensitive material package shown in FIG. One example of the manufacturing method will be described with reference to the schematic diagram, but is not limited to this. The arrow in the figure indicates the direction in which the object flows. P indicates a first step, and is a step of aligning and supplying the main body case, which is aligned and supplied from the main body case supply device (not shown), to the transport belt 8.

Q represents a second step, in which the photographic photosensitive material cartridges 5 arranged and supplied from a photographic photosensitive material cartridge supply device (not shown) are taken up one by one by a storage device 9 having a suction function and conveyed. This is a process of storing the case 2. Reference numeral 901 denotes a suction tube. C indicates a state where the photographic photosensitive material cartridge 5 is stored in the main body case 2.

R indicates a third step, in which the sheet film 4 serving as an opening assisting member is sucked into the opening 201 of the main body case 2 containing the photographic photosensitive material cartridge 5 conveyed from the second step. This is a step of picking up and supplying one by one. Reference numeral 101 denotes a suction tube. The supplied sheet film 4 has a shape shown in FIG. 1, and the sheet film 4 is unwound in a rolled state and can be obtained by punching with a punching machine (not shown). . However, the shape is not limited.
Any shape can be used as long as it can cover 01. Of course, the shape may be as it is, without being punched out. D is the film 4 on the opening 201.
Indicates a state in which is supplied.

S indicates a fourth step, and a supply device (not shown) for supplying the cap 3 to the opening 201 of the main body case in a state where the film 4 is supplied on the opening 201 conveyed from the third step R. This is a step of picking up and supplying the caps 3 supplied in a more aligned manner by the supply device 11 having a suction function. Reference numeral 111 denotes a suction tube. Opening 201
When the cap 3 supplied above is fitted with the pushing device 12, the film 4 is held by the outer cylindrical portion 302 of the cap having a fitting portion that fits and locks on the peripheral portion of the opening, and is shown in FIG. The photographic photosensitive material package 1 to be manufactured is manufactured.

FIG. 6 is a schematic view showing a method for manufacturing the photographic material package shown in FIG. One example of the manufacturing method will be described with reference to the schematic diagram, but is not limited to this. The arrow in the figure indicates the direction in which the object flows. In this figure, the first
Step P and the second step Q are the same as those in FIG.

T indicates a third step, in which a cylindrical shrink film 7 is mounted on the outer peripheral portion of the main body case 2 containing the photographic material cartridge 5 conveyed from the second step. The shrink film 7 is a cylindrical shape having a diameter of 10 to 20 mm larger and a height of 5 to 10 mm larger than the main body case 2, and is supplied from a shrink film supply device (not shown) via a guide 13. Attached to cover.

E shows a state of the main body case 2 in which the shrink film 7 is mounted on the outer peripheral portion. Shrink film 7
May be punched out of a tube-shaped object into a shape with a knob, or a sheet-like material may be welded into a tube and punched into a knob-shaped shape. The perforations 702 may be provided in any of the steps of supplying a shrink film, or may be provided in a step of forming a cylindrical shape.

Reference numeral U denotes a fourth step, which is a heating step of bringing the shrink film 7 attached to the outer peripheral portion of the main body case 2 into close contact with the outer peripheral portion, the peripheral portion 203 and the inside of the peripheral portion 203 of the main case 2. Numeral 14 denotes a heating tunnel, and the shrink film is heated so that the outer periphery of the main body case 2 is heated.
The peripheral portion 203 and the inside of the peripheral portion 203 can be tightly covered. Since the heating temperature and time vary depending on the type of the shrink film, it cannot be specified, but are set in accordance with the shrink film used. For example, in the case of PE, the standard is 150 ° C. for 10 seconds. F indicates a state in which the outer peripheral portion, the peripheral edge portion 203, and the inner side of the peripheral edge portion 203 of the main body case 2 are closely covered with the shrink film 7.

V indicates a fifth step. The outer peripheral portion, the peripheral edge portion 203 of the main body case 2 conveyed from the fourth step U and the main body case 2 in a state where the shrink film 7 is adhered to the inside of the peripheral edge portion 203 are shown. Supply device for cap 3 (not shown)
The fourth cap shown in FIG.
This is the same step as step S. When the cap 3 is fitted, the shrink film 7 is held by the outer peripheral portion 302 of the cap having the fitting portion for fitting and locking the shrink film 7 with the peripheral portion of the opening. Manufactured.

In this drawing, the photographic photosensitive material cartridge is stored in the main body case 2 and then the shrink film is mounted. However, the shrink film may be mounted before storing the photographic photosensitive material cartridge.

There is no particular limitation on the packaging method of the storage container of the present invention for sale, and it may be stored and packaged in an outer box on which design printing has been performed, or Japanese Utility Model Application Laid-Open No. 2-56165, 9-586.
No. 28, No. 5-249609, No. 6-80157,
An environment-friendly packaging method described in JP-A-11-25838, JP-A-11-258737, JP-A-2000-10245, or the like may be used.

[0070]

Hereinafter, the present invention will be described with reference to examples.
Embodiments of the present invention are not limited to these.

Example 1 A container for storing a photographic photosensitive material cartridge shown in FIG. 1 was prepared.

<Production of Lid> The lid shown in FIG. 1 was produced by injection molding using low-density polyethylene manufactured by Asahi Kasei Corporation. The thickness was 1.1 mm.

<Preparation of Main Case> The main case shown in FIG. 1 was prepared by injection molding using high-density polyethylene manufactured by Asahi Kasei Corporation. The thickness was 1.5 mm.

<Preparation of Film for Opening Aid Member> Films 11 to 15 having different thicknesses and tensile strengths were prepared by a T-die method and shown in Table 1. The film was made by punching out a film provided with a knob piece, which was 10 mm larger than the diameter of the opening of the main body case.

[0075]

[Table 1]

<Preparation of Photosensitive Material Cartridge Storage Container with Opening Aid> A photographic photosensitive material cartridge containing Centuria 100 manufactured by Konica Corporation is housed in the prepared main body case, and each film 11 prepared in the opening is provided.
To 15 and the prepared lid was fitted.
05 and shown in Table 2. In addition, each sample produced 10 pieces.

Evaluation The obtained sample was left for 12 hours at −20 ° C. in a severe winter environment, and a cap removal test was performed manually at −20 ° C. The results are shown in Table 2. The case where removal was possible without any problem was marked as “○”.

[0078]

[Table 2]

The effectiveness of the present invention has been confirmed. Example 2 Using two samples 101 to 105 each prepared in Example 1,
One of them was subjected to a preservation treatment for 2 weeks in an atmosphere of 30 ° C. and 90% RH, and the other was stored frozen and used as a comparative sample. Each sample was subjected to the specified development processing of Konica Corporation, and the processed sample was subjected to density measurement using a type 408 densitometer manufactured by X-Rite Co., Ltd., and the obtained results are shown in Table 3.
In the evaluation, when the concentration was within a range of ± 0.02 with respect to the concentration of the comparative sample, the occurrence of fog was determined to be “absent”.

[0080]

[Table 3]

The effectiveness of the present invention has been confirmed. Example 3 Using the lid and the body case prepared in Example 1, a container for storing a photographic photosensitive material cartridge having the form shown in FIG. 3 was produced. <Preparation of Shrink Film> Various shrink films 21 to 25 having different thicknesses and tensile strengths were prepared.
Shown in Each of the prepared shrink films was formed by a T-die method and then by a biaxial stretching method in the vertical and horizontal directions.

[0082]

[Table 4]

<Preparation of Main Case Covered with Shrink Film> Using the main case prepared in Example 1, using the above various shrink films, main body cases 201 to 205 covered with the shrink film were prepared.
The coating was performed at a heating temperature of 130 ° C. for a time of 5 seconds. The shrink film was set to enter the inside of the main body case by about 5 mm.

<Photosensitive Material Cartridge Storage Container> Body Cases 201 to 205 Covered with Shrink Film
Table 5 shows samples 201 to 205 in which the lid prepared in Example 1 was fitted.
In addition, each sample produced 10 pieces.

Evaluation Assuming a severe environment in winter, the obtained sample was left at −20 ° C. for 12 hours, then a cap removal test was performed at −20 ° C., and the case where the cap was successfully removed was evaluated as ○.
Table 5 shows the obtained results.

[0086]

[Table 5]

The effectiveness of the present invention has been confirmed.

[0088]

According to the present invention, there is provided a photographic light-sensitive material package in which a photographic light-sensitive material cartridge is housed in a container in which a cap can be easily removed even in a cold region without deteriorating the performance of the photographic light-sensitive material even under conditions of high temperature and high humidity. did it. Further, a method for producing the above-mentioned photographic material package can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a package of a photosensitive material in which an opening assisting member is sandwiched between an opening of a storage container and a fitting portion of a cap.

FIG. 2 is a schematic sectional view of the package shown in FIG.

FIG. 3 is a schematic perspective view of a photographic photosensitive material package in which another example of an opening assisting member is sandwiched between an opening of a storage container and a fitting portion of a cap.

FIG. 4 is a schematic sectional view of the package shown in FIG. 3;

FIG. 5 is a schematic view illustrating a method for manufacturing the photographic photosensitive material package shown in FIG.

FIG. 6 is a schematic view showing a method for manufacturing the photographic photosensitive material package shown in FIG.

[Explanation of symbols]

 1, 6 Photosensitive material package 2 Body case 201 Opening 203 Peripheral edge 3 Cap 4 Sheet film 401, 701 Knob piece 5 Photosensitive material cartridge 7 Shrink film 702 Perforation 14 Heating tunnel

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G03C 3/00 G03C 3/00 570E 570L 571 571C 572 572A 572Z 585 585B 590 590F B65D 81/30 B65D 81/30 C 85/672 85/672

Claims (6)

[Claims] 1. A storage container comprising: a tubular main body case made of a thermoplastic resin having an opening to which a cap can be attached at one end and a bottom at another end; and a cap for sealing the opening. In a photographic photosensitive material package containing a photographic photosensitive material cartridge in which an unexposed photographic photosensitive material wound around a shaft is housed in a light-tight state, the photographic photosensitive material package is opened at the fitting portion between the opening of the storage container and the cap. A photographic light-sensitive material package, wherein an auxiliary member is interposed therebetween, and the opening is sealed by the cap. 2. The opening assisting member has a thickness of 10 to 50 μm,
The photographic photosensitive material package according to claim 1, wherein the film is a film having a tensile strength of 700 × 10 ^{6 to} 17600 × 10 ⁶ Pa. 3. The identification information of a photographic material is displayed on a film of the opening assisting member.
3. A package of the photosensitive material according to item 1. 4. The photographic photosensitive material package according to claim 1, wherein an opening knob piece is provided on the film of the opening assisting member. 5. The method of manufacturing a photographic photosensitive material package according to claim 1, wherein the photographic photosensitive material cartridge is supplied to a main body case of a storage container, and then the film is used as an opening assisting member. A photographic light-sensitive material package, and the opening is fitted and sealed by a cap. 6. The method of manufacturing a photographic photosensitive material package according to claim 1, wherein the photographic photosensitive material cartridge is supplied to a main case of the storage container, and then the main case of the storage container is supplied. A method of manufacturing a photographic photosensitive material package, comprising: tightly covering the outer peripheral portion and the inside of the peripheral portion of the opening with a film of an opening assisting member, and fitting and sealing the opening with a cap.