JPH05127319A - Photographic film package - Google Patents

Abstract

PURPOSE:To surely draw out a photographic film package from a film holder and to easily fold a light shielding envelope after photographing. CONSTITUTION:An aperture 15 and a slot 16 are formed at the leading edge of a 2nd carrier sheet 14. When the light shielding envelope 3 is picked up, both inside surfaces of the envelope 3 directly touch with each other through the aperture 15. By drawing out the envelope 3 from the film holder in such a state, a film unit 4 does not move relatively to the envelope 3 and drawn out therewith. Since the 2nd carrier sheet 14 is easily folded at the time of folding the envelope 3 along the trailing edge of a carton 5, the envelope 3 is easily folded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic film package in which a sheet-shaped photographic film is stored in a light-shielding envelope so that it can be freely taken in and out.

[0002]

2. Description of the Related Art A photographic film unit in which a carrier sheet is attached to a sheet-shaped photographic film and a photographic film package in which the photographic film unit is housed in a light-shielding envelope are known. When this photographic film package is loaded into the film holder, the tip of the light-shielding envelope is picked, and only the light-shielding envelope is pulled out, the photographic film is exposed from the insertion opening formed at the rear end of the light-shielding envelope. After the photographing, the light-shielding envelope is pushed into the film holder, and the photographed photo film is stored in the light-shielding envelope. After that, when the rear end of the light-shielding envelope is sandwiched by the light-shielding clips, the insertion port is closed and the inside is kept light-tight. In this state, the photographic film unit is gripped via the light-shielding envelope, and when these are pulled out, the photographic film package is taken out from the film holder.

[0003]

By the way, since the light-shielding envelope allows the photographic film unit to be taken in and out, the inner surface of the photographic film unit is made slippery. There is a problem that the unit cannot be reliably grasped. Further, when the used photographic film package is stored, if the photographic film unit moves in the light-shielding envelope, the light-shielding clip may come off from the light-shielding envelope to expose the photographic film. In order to solve such a problem, an opening 41 as shown in FIG. 12 is formed at the tip of the carrier sheet 40, and the opening 4 is opened when the light shielding envelope 43 is picked up.
A photographic film package 42 in which both the inner surfaces are directly in contact with each other and the carrier sheet 40 can be easily folded is disclosed in Japanese Patent Application No. 2-4111.
No. 54 proposed. In this photographic film package 42, when the photographic film package is picked up from the film holder by picking up the light-shielding envelope, both inner surfaces directly contact with each other through the opening 41, so that the photographic film unit can be reliably gripped. In addition, in the photo film package 42, the tip of the light-shielding envelope 43 is bent after photographing to prevent the photo-film unit from moving in the light-shielding envelope during storage, but this can be easily performed.

A first object of the present invention is to ensure that the photographic film unit can be grasped when the photographic film package is pulled out from the film holder by picking up the opaque envelope, and the light-shielding envelope can be easily bent after photographing. It provides a photo film package that can be performed. A second object of the present invention is to provide a photographic film package in which at least one of the first carrier sheet and the second carrier sheet is provided with a detection opening or a detection notch for detecting the emulsion coating surface of the photographic film. is there. A third object of the present invention is to provide a photographic film package that does not require bending of the second carrier sheet after taking a picture.

[0005]

In order to achieve the above object, in the invention of claim 1, an easy folding portion for facilitating bending of the second carrier sheet and a light-shielding envelope are pinched at the tip portion of the second carrier sheet. At this time, the inner both surfaces thereof are brought into contact with each other, and an opening for preventing the second carrier sheet from moving with respect to the light-shielding envelope is provided. According to the second aspect of the invention, a double-sided tape is attached to the tip of the light-shielding envelope so that the light-shielding envelope can be fixed in a bent state after photographing. Furthermore, in the invention of claim 3, when the photographic film is stored in the light-shielding envelope in a light-tight manner, the reinforcing sheet is provided with a notch that overlaps the opening.

According to a fourth aspect of the present invention, a detection opening or a detection notch for detecting the emulsion coated surface of the photographic film is provided on at least one of the first carrier sheet and the second carrier sheet. Further, in the invention of claim 5, the light-shielding envelope and the light-shielding clip can be fixed with a tape in order to prevent the second carrier sheet from moving in the light-shielding envelope without bending after the photographing. Furthermore,
In the invention of claim 6, the first carrier sheet and / or the second carrier sheet
The carrier sheet and the photographic film are detachably attached by using a weak EVA resin adhesive.

[0007]

1 and 2 showing a photographic film package in which a photographic film is stored in a light-tight envelope in a light-tight manner, the photographic film package 2 includes a light-tight envelope 3 and a photographic film unit 4 which is stored in the light-tight envelope. It consists of The light-shielding envelope 3 is made of carbon-mixed black paper in order to obtain a light-shielding property. The outer surface is moisture-proofed and the inner surface is finished smoothly. A tip portion 3a of the light-shielding envelope 3 is cut into a trapezoidal shape, and this portion protrudes to the outside when the photographic film package 2 is loaded in a film holder of a camera (see, for example, USP4821054).

A reinforcing sheet, for example, a thick paper 5 having a substantially trapezoidal shape having a thickness of 0.3 mm is joined to the tip portion 3a so that the light shielding envelope 3 exposing the photographic film unit 4 can be grasped by a finger when it is pulled out. A notch 6 is formed in the center of the cardboard 5 so that both sides of the light-shielding envelope 3 can be directly pinched when the photographic film package 2 is pulled out. As shown in FIG. 2, a double-sided tape 7 having a release paper 7a on its surface is attached to the front surface of the tip portion 3a. A notch 8 is formed at the tip of the light-shielding envelope 3 so that the release paper 7a can be easily peeled off. When the light-shielding envelope 3 is bent as shown by the chain double-dashed line in the figure so that the photographic film unit 4 does not move inside, the double-sided tape 7 fixes the tip 3a to the center of the light-shielding envelope 3. To do.

In FIG. 4 showing the cardboard, the length of the bottom side, the length of the upper side, the height, and the depth length and width of the notch 6 are D ₁ , D ₂ , H ₁ , H ₂ , D _{3 respectively.} (Unit: mm), the preferable outer dimensions are 100 ≦ D ₁ ≦ 111, 55 ≦ D ₂ ≦ 61, 11 ≦ D, respectively.
₃ ≦ 19, 40 ≦ H ₁ ≦ 45, 34 ≦ H ₂ ≦ 39. Note that D ₁ and D ₂ have the same dimensions as the light-shielding envelope 3, and particularly preferably D ₁ = 110, D ₃ = 16, and H ₁ = 4.
3, H ₂ = 37. Further, although the reinforcing sheet is made of paper in this embodiment, it may be synthetic paper.
Furthermore, the thickness of the reinforcing sheet was set to 0.3 mm, but this value is particularly preferable, so the thickness is 0.1 mm.
It may be 0.5 mm or less.

An insertion opening 10 is formed at the rear end of the light-shielding envelope 3 as shown in FIG. 3, and a sheet-shaped photographic film 11 is taken in and out from the insertion opening 10. The first carrier sheet 12 is joined to the rear end of the photographic film 11 via a hot melt adhesive.
At the rear end of the first carrier sheet 12, a light blocking clip 1
3 is fixed. A second carrier sheet 14 made of polyethylene is bonded to the tip of the photographic film 11 via a hot melt adhesive. The leading end portion 14a of the second carrier sheet 14 is cut into a trapezoidal shape so that the photographic film unit 4 can be easily inserted into the light-shielding envelope 3. In this embodiment, the polyethylene sheet is used as the second carrier sheet 14, but other synthetic resin sheet may be used as long as it is not cut when folded. The preferred thickness of this sheet is 100 μm to 250 μm. This sheet does not need to be colored to ensure the light-shielding property because the light-shielding envelope 3 always secures the light-shielding property, and it is preferable to use a transparent sheet rather than a colored sheet from the economical point of view.

An opening 15 and an easily bendable portion such as a slot 16 are formed in the tip portion 14a from the tip side. The opening 15 makes contact between both inner surfaces of the light-shielding envelope 3 when the light-shielding envelope 3 is picked up, prevents the photographic film unit 4 from moving in the light-shielding envelope 3, and the slot 16 makes the second carrier sheet 14 easy to fold. Shading clip 1
When the opening 3 closes the insertion slot 10, the opening 15 crosses and overlaps the notch 6 and the slot 16 overlaps the rear end of the cardboard 5, as shown in FIG. Are located in each. In this embodiment, one opening 15 is provided in order to make it easier to grip the photographic film unit 4, but instead of this, a plurality of small openings 1 are provided as shown in FIG.
5a and the second carrier sheet 1 as shown in FIG.
The same effect can be obtained by providing a parallel notch 15b at the tip of No. 4. Also, instead of the slot 16, FIG.
Even if the notch 16a is provided as shown in FIG. 5B, the perforation 16b is provided as shown in FIG. 5C, and the pair of slots 16c and 16d is provided as shown in FIG.
An effect similar to that of 6 can be obtained. Also, cut 1
In the case of 6a and perforations 16b, these may be plural.

On the upper surface of the second carrier sheet 14, a rectangular step correction sheet 17 is joined as shown in FIG. The step correction sheet 17 has a front end cut obliquely so that the photographic film unit 4 can be easily inserted into the light-shielding envelope 3. For the same reason, the front end side of the first carrier sheet 12 is also cut obliquely.

The operation of the photographic film package thus constructed will be described. The above-mentioned film holder is set in the unlocked state, and the photographic film package 2 shown in FIG. 1 is inserted in the arrow direction. After this insertion, when the film holder is set in the locked state, the light-shielding clip 13 is locked to the film holder.

In this state, when the front end portion 3a of the light-shielding envelope 3 is lightly pinched from above the thick paper 5 with a finger and pulled to the right side in the drawing,
Since the photo film unit 4 is fixed to the light blocking clip 13, only the light blocking envelope 3 moves to the position shown in FIG. By this movement, the photographic film 11 is exposed from the light-shielding envelope 3 and can be photographed.

When the light-shielding envelope 3 is pushed in after the photographing is completed,
The photographic film unit 4 is a light-shielding envelope 3 as shown in FIG.
It is stored inside. Then, the rear end of the light-shielding envelope 3 is fitted into the light-shielding clip 13, and the insertion port 10 is closed. After that, since the inside of the light-shielding envelope 3 is shielded from light, the photographed film 11 is not exposed to outside light.

Next, when the film holder is set to the unlocked state, the lock between the light-shielding clip 13 and the film holder is released. When the light-shielding envelope 3 is directly picked in the notch 6, both inner surfaces of the light-shielding envelope 3 come into direct contact with each other through the opening 15, so that the photographic film unit 4 cannot move in the light-shielding envelope 3. In this state, since the light-shielding envelope 3 is pulled out, the photographic film unit 4 can be taken out together with the light-shielding envelope 3 from the film holder.

When the release paper 7a is peeled off from the double-sided tape 7 and the light-shielding envelope 3 is bent along the end of the thick paper 5, the front end 3a is fixed to the center of the light-shielding envelope 3 via the double-sided tape 7. After that, the photographic film unit 4 becomes immovable in the light-shielding envelope 3, so that the light-shielding clip 13 is kept in the light-shielding envelope 3 during storage of the photographed photo-film package 2.
It will never fall off. The light-shielding envelope 3 can be easily folded because the second carrier sheet 14 can be easily folded.

Next, the photographic film package which has achieved the second object of the present invention will be explained more specifically with reference to the following examples, but of course the invention is not limited thereto. As shown in FIG. 6, the photographic film package 2 is composed of a light-shielding envelope 3 and a photographic film unit 4 which is housed in the light-shielding envelope 3 in a light-tight manner. The light-shielding envelope 3 is made of carbon-mixed black paper in order to obtain a light-shielding property. The outer surface is moisture-proofed and the inner surface is finished smoothly. Photo film 11 on the inner surface on the back side
It is preferable to adhere a dust removing sheet that removes dust and dirt adhering to the back surface of the. The front end portion 3a of the light-shielding envelope 3 is cut into a trapezoidal shape, and this portion allows the photographic film package 2 to be attached to a camera film holder (for example, USP48
No. 21054), it projects to the outside.

A reinforcing sheet, for example, a cardboard 5 having a substantially trapezoidal shape with a thickness of 0.3 mm is joined to the tip portion 3a so that the light-shielding envelope 3 exposing the photographic film unit 4 can be grasped by a finger when it is pulled out. A notch 6 is formed in the center of the cardboard 5 so that both sides of the light-shielding envelope 3 can be directly pinched when the photographic film package 2 is pulled out. Corresponding to the notch 6, a double seal 20 of, for example, a rectangle of 15 mm × 40 mm shown by a broken line in the drawing is provided on the back surface side of the light-shielding envelope 3.
Is attached. Since the thick paper 5 has the same configuration as that of the above embodiment, the description thereof will be omitted.

An insertion port 10 is formed at the rear end of the light-shielding envelope 3 as shown in FIG. 6, and a sheet-shaped photographic film 11 is taken in and out from the insertion port 10. The first carrier sheet 12 is joined to the rear end of the photographic film 11 via a hot melt adhesive.
At the rear end of the first carrier sheet 12, a light blocking clip 1
3 is fixed. A second carrier sheet 14 made of polyethylene is bonded to the tip of the photographic film 11 via a hot melt adhesive. The leading end portion 14a of the second carrier sheet 14 is cut into a trapezoidal shape so that the photographic film unit 4 can be easily inserted into the light-shielding envelope 3. In this embodiment, a polyethylene sheet is used as the second carrier sheet 14, but other synthetic resin sheets such as polyester sheet, polypropylene sheet, polystyrene sheet, polyamide sheet, etc. may be used as long as they are not cut when folded. ..

The second carrier sheet 14 preferably has a thickness of 100 μm to 250 μm, and since the light-shielding envelope 3 always secures the light-shielding property, it is not necessary to color the second carrier sheet 14 to secure the light-shielding property, and it is economical. A transparent one is preferable to a colored one. At the tip portion 14a of the second carrier sheet 14, openings 15 and 18 having different shapes from the tip side are formed.
b, two 19b are formed. The opening 15 prevents the photographic film unit 4 from moving inside the light-shielding envelope 3 when the light-shielding envelope 3 is picked up, and the opening 18b creates the photographic film unit 4 under a safelight. Sometimes it is a detection opening for detecting the emulsion coating surface of the photographic film 11, and the two openings 19b are positioning openings for the second carrier sheet 14 when the photographic film unit 4 is made. A plurality of the openings 19b may be provided on one side of the center line 4a of the photographic film unit 4, but it is preferable to provide one or more openings 19b so as to straddle the center line 4a.

The detection opening for detecting the emulsion coated surface is the second
The first carrier sheet 1 as well as the carrier sheet 14
It is also formed in 2. The opening 18a of the first carrier sheet 12 is a detection opening. In this embodiment, the detection opening is formed on the first and second carrier sheets, but the effect is not impaired even if it is formed on either one of the carrier sheets. The shapes of the openings 18a and 18b may be elliptical, square, rectangular, triangular, etc. in addition to the true circle, and the number of the openings 18a and 18b may be plural. Furthermore, although the openings 18a and 18b are used for detecting the emulsion coated surface in this embodiment, the notches as shown by reference numeral 18c may be used.

Openings 18a, 18b and two openings 19b
By using, even under safelight, the first and second
The carrier sheet can surely be bonded to the anti-emulsion coated surface (hereinafter referred to as the back surface) of the photographic film 11 via a hot melt adhesive. In this embodiment, one opening 15 is provided in order to make it easier to grip the photographic film unit 4, but instead of this, a plurality of small openings 15a as shown in FIG. Notch 15b parallel to the tip of the second carrier sheet as shown in (B)
The same effect can be obtained by providing.

A rectangular step correction sheet 17 is joined to the upper surface of the second carrier sheet 14 as shown in FIG. The step correction sheet 17 has a front end cut obliquely so that the photographic film unit 4 can be easily inserted into the light-shielding envelope 3. For the same reason, the front end side of the first carrier sheet 12 is also cut obliquely.

The operation of the photographic film package thus constructed will be described. The above-mentioned film holder is set in the unlocked state, and the photographic film package 2 shown in FIG. 1 is inserted in the arrow direction. After this insertion, when the film holder is set in the locked state, the light-shielding clip 13 is locked to the film holder.

In this state, when the tip portion 3a of the light-shielding envelope 3 is lightly pinched from above the thick paper 5 with a finger and pulled rightward in the drawing,
Since the photo film unit 4 is fixed to the light blocking clip 13, only the light blocking envelope 3 moves to the position shown in FIG. By this movement, the photographic film 11 is exposed from the light-shielding envelope 3 and can be photographed.

When the light-shielding envelope 3 is pushed in after the photographing is finished,
The photographic film unit 4 is a light-shielding envelope 3 as shown in FIG.
It is stored inside. Then, the rear end of the light-shielding envelope 3 is fitted into the light-shielding clip 13, and the insertion port 10 is closed. After that, since the inside of the light-shielding envelope 3 is shielded from light, the photographed film 11 is not exposed to outside light.

Next, when the film holder is set to the unlocked state, the lock between the light-shielding clip 13 and the film holder is released. When the light-shielding envelope 3 is directly picked in the notch 6, both inner surfaces of the light-shielding envelope 3 come into direct contact with each other through the opening 15, so that the photographic film unit 4 cannot move in the light-shielding envelope 3. In this state, since the light-shielding envelope 3 is pulled out, the photographic film unit 4 can be taken out together with the light-shielding envelope 3 from the film holder.

By the way, in the above invention, the light-shielding envelope 3 is bent at the end of the thick paper 5 so that the photo-film unit 4 does not move in the light-shielding envelope 3 after the photographing is finished. The light-shielding envelope 3 may relatively move, and as a result, a slight gap may be formed between the light-shielding envelope 3 and the light-shielding clip 13. For this reason, another invention will be described below in which the photographic film unit 4 is not moved in the light-shielding envelope 3 without bending the light-shielding envelope 3 after the photographing is finished so that the light-shielding envelope 3 does not come off from the light-shielding clip 13. ..

In FIG. 7 showing the back side of the photographic film package of another invention, a cutout 8 is formed at the tip of the light-shielding envelope 3, and a rectangular shape, for example, 15 mm × is formed so as to cover a part of the cutout 8. A 40 mm double seal 20 is attached. The description of the same configuration as that of the above embodiment will be omitted. In the description, the same symbols are used for the same parts as those in the above embodiment.

FIG. 8 is an enlarged view of the double seal attached to the light-shielding envelope. The double seal 20 is composed of an upper seal 32 and a lower seal 33. The upper seal 32 is a high-quality paper 32a having a basis weight of 73 g / m ² and an acrylic adhesive 32b for re-seal applied to the lower surface thereof, and the lower seal 33 is a high-quality paper 33b having a transparent polyester film 33a adhered on the upper surface thereof. The upper seal 32 is bonded to the lower seal 33 via the acrylic adhesive 32c, and the lower seal 33 is bonded via the acrylic adhesive 33c. And is adhered to the light-shielding envelope 3. In addition, the characters "photographed" are printed on the upper surface of the high quality paper 33a.

The upper seal 32 is the light-shielding envelope 3 after the photographing is completed.
And the light-shielding clip 13 to secure the lower seal 3
It is peeled from 3 and attached as shown in FIG. 9 (A) or FIG. 9 (B). For this reason, in order to make the upper seal 32 easy to peel off from the lower seal 33, the polyester film 33a is treated with silicon, and the double seal 20 has a cut line 34 formed by cutting the upper seal 32 from one end side. It is provided at a position of 35 mm. This cut line 34 is for bending only the lower seal 33 when the double seal 20 is bent so that the polyester film 33a and the acrylic adhesive 32b are easily separated. Although the cut line 34 is provided in parallel with the short side direction of the double seal 20 in this embodiment, the cut line 34 may be provided so that a triangle is formed at the corner portion of the upper seal 32.

The operation of the photographic film package thus constructed will be described. When the double seal 20 is bent at the notch 8 after the photographing, a part of the polyester film 33a and the acrylic adhesive 32b are separated at the cut line 34. Therefore, the user can easily grasp the upper seal 32 without raising the nail and peeling it off. When the upper seal 32 is peeled off, the characters "taken" are printed on the lower seal 33, so that the photographic film package 2 can be prevented from being reused. After that, as shown in FIG. 9A or FIG. 9B, the upper seal 32 is attached to the light-shielding envelope 3 and the light-shielding clip 13, and these are fixed. After that, the light-shielding envelope 3 will not come off from the light-shielding clip 13. Although the double seal 20 is attached to the light-shielding envelope 3 in this embodiment, one seal is provided so that it can be peeled off, and when the seal is peeled off, the “photographed” image is printed on the light-shielding envelope 3 in advance. Even if is displayed, the same effect can be obtained.

10A, 10B and 11, instead of forming the notch 8, the thick paper 5 cut as shown by the broken line in the figure is attached to the light-shielding envelope 3 and doubled. Fig. 8 shows an embodiment in which the seals 20 are attached to the corresponding positions to obtain the same effect as that of the embodiment of Fig. 7. In these embodiments, the double seal 20 and the light-shielding envelope 3 are bent at the folding line 36 so that part of the upper seal 32 is cut at the cut line 34.
3 can be peeled off.

The composition of the hot melt adhesive for joining the photographic film 11 and the first carrier sheet 12 and / or the second carrier sheet 14 in the examples is as follows. EAV resin 48% by weight SBR 10% by weight Rosin-based tackifier 14% by weight Chlorinated polyethylene resin 14% by weight, amide modified resin 8% by weight Wax 4% by weight Antioxidant 0.5% by weight, silica 1.5% by weight

The above hot-melt adhesive is an excellent hot-melt adhesive having weak adhesive strength and low-temperature sealability, does not adversely affect the photographic film 11, has sufficient adhesive strength at the time of adhesion, and can be peeled at the time of peeling. And satisfy the conflicting characteristics. In this embodiment, the thickness of the hot melt adhesive applied is 5 for the first carrier sheet 12.
μm, and the second carrier sheet 14 has a thickness of 10 μm. The coating thickness of this hot melt adhesive is 3 μm to 3 μm.
The thickness may be in the range of 0 μm, but the preferable thickness range is 5 μm to
It is 15 μm.

Each component of this hot melt adhesive is known, but by specifying the blending ratio, an excellent adhesive suitable for the present invention can be obtained. The preferable compounding ratio (A) and the particularly preferable compounding ratio (B) are shown below, but the present invention is not limited thereto.

[0038]

[Table 1] The unit of the compounding ratio is% by weight.

The photographic film package of the present invention has been described above in detail, but the preferred embodiments will be described below. A photographic fulm package that has a double sticker attached to the outside of the light-shielding envelope. The double seal consists of an upper seal and a lower seal,
A photographic film package characterized in that the upper seal is provided on the lower seal so as to be easily peeled off. Photographs characterized in that the lower sticker, which has characters and marks indicating that it has been photographed on the upper surface, is completely fixed to the light-shielding envelope, and the characters and marks are displayed when the upper sticker is peeled off. Film package. The double seal is a photographic film package that has a cut line that cuts only the upper seal. By folding the double seal at the cut line, a double seal is attached to the light-shielding envelope so that a part of the upper seal is separated from the lower seal and a part of the cut line protrudes outside the outline of the light-shielding envelope. Photo film package characterized by being attached. A photographic film package, characterized in that a dust removing sheet is adhered to the inner surface of the light-shielding envelope, and when the photographic film is taken in and out, the dust removing sheet removes at least dust attached to the back surface of the photographic film. .. After the shooting, the tapes attached to the light-shielding envelopes are detachably provided on the surface of the light-shielding envelopes so that the light-shielding envelopes do not come off from the light-shielding clips. Photo film package characterized by displaying symbols.

[0040]

As described above in detail, in the photographic film package of the present invention, the easy-to-fold portion for facilitating bending of the second carrier sheet and the light-shielding envelope are pinched and pulled at the tip of the second carrier sheet. At this time, both inner surfaces are brought into contact with each other and an opening for preventing the movement of the second carrier sheet is provided, so that the photographic film unit can be surely gripped when the light-shielding envelope is picked up, and the light-shielding envelope after taking a picture Bending can be done easily. Further, since the double-sided tape is attached to the tip of the light-shielding envelope, the light-shielding envelope bent after photographing can be fixed without using an adhesive or the like. Furthermore, since the notch that overlaps the opening is provided in the reinforcing sheet, the light-shielding envelope can be directly pinched, and the photographic film unit can be gripped more reliably.

In another invention, since the detection opening or the detection notch for detecting the emulsion coating surface of the photographic film is provided on at least one side of the first carrier sheet or the second carrier sheet, the anti-emulsion coating surface of the photographic film is formed. Even under a safelight, the first carrier sheet and the second carrier sheet can be joined to each other at the correct positions with a hot melt adhesive without fail. Since a hot melt adhesive having a weak adhesive force and a low temperature sealing property is used for this joining, a sufficient adhesive force can be obtained at the time of adhering, and the photographic film can be cleaned cleanly from the first carrier sheet and the second carrier sheet at the time of peeling. Can be peeled off.

In another invention, a tape attached to the light-shielding envelope is provided on the surface of the light-shielding envelope so that the light-shielding envelope does not come off from the light-shielding clip. By sticking the tape to the above, it is possible to prevent them from coming off, so that the photographed photo film is not exposed to outside light.
Further, when the tape is peeled off, a display indicating that the image has been taken is displayed, so double exposure can be prevented.

[Brief description of drawings]

FIG. 1 is a plan view showing a stored state of a photographic film package according to the present invention.

FIG. 2 is a plan view of the photographic film package showing a state in which the light-shielding envelope is folded.

FIG. 3 is a perspective view of the photographic film package showing a state in which the photographic film is exposed.

FIG. 4 is a plan view of cardboard.

FIG. 5 is an explanatory diagram showing a modified example of the second carrier sheet.

FIG. 6 is a perspective view of the photographic film package showing a state where the photographic film unit is pulled out from the light-shielding envelope.

FIG. 7 is a view of a photographic film package of another invention viewed from the back side.

FIG. 8 is an enlarged sectional view of a main part of a double seal.

FIG. 9 is a diagram in which an upper seal is attached to a light-shielding envelope and a light-shielding clip.

FIG. 10 is a view showing a photographic film package in which a double seal is attached to a light-shielding envelope in parallel with a light-shielding clip.

FIG. 11 is a view showing a photographic film package in which a double seal is attached to a light-shielding envelope vertically to a light-shielding clip.

FIG. 12 is a plan view showing a main part of a conventional photographic film package.

[Explanation of symbols]

 2 Photo film package 3 Light-shielding envelope 4 Photo film unit 4a Center line 5 Cardboard 6 Notch 10 Insertion slot 11 Photo film 12 First carrier sheet 13 Light-shielding clip 14 Second carrier sheet 14a Tip 15, 15a Opening 15b Notch 16 Slot 16a Cut 16b Perforation 16c, 16d Slot 18a, 18b Open 19b Open 20 Double seal 32 Upper seal 33 Lower seal 34 Cut line

Claims (6)

[Claims] 1. A sheet-shaped photographic film, one end of which is detachably attached to the rear end of the photographic film, and the other end of which is detachably attached to the first carrier sheet and a clip fixed to the other end of the photographic film. A photo film unit consisting of a second carrier sheet and an insertion opening closed at the rear end by the clip, and a reinforcing sheet is joined to the tip end cut into a trapezoidal shape so as to store the photo film in a light-tight manner. In a photographic film package including an envelope, the second carrier sheet can be easily folded when a light-shielding envelope in which the photographic film is housed in a light-tight manner is folded along the rear end of the reinforcing sheet at the tip of the second carrier sheet. The easy-to-fold portion and the inner side surfaces of the light-shielding envelope are brought into contact with each other when the light-shielding envelope is picked, and the second carrier sheet moves in the light-shielding envelope. Photographic film package, characterized in that the opening to prevent the, respectively. 2. The light-shielding envelope is provided at its tip with a double-sided tape having release paper adhered to the surface thereof. When the light-shielding envelope is bent, the double-sided tape is attached to the tip of the light-shielding envelope. The device is fixed to the central part, wherein
The described photo film package. 3. The photograph according to claim 1, wherein the reinforcing sheet is provided with a notch that overlaps the opening when the photographic film is stored in a light-tight envelope in a light-tight manner. Film package. 4. A sheet-shaped photographic film, one end of which is releasably attached to the rear end of the photographic film, and the other end of which is detachably attached to the first carrier sheet and a clip fixed to the other end of the photographic film. A photo film unit consisting of a second carrier sheet and an insertion opening closed at the rear end by the clip, and a reinforcing sheet is joined to the tip end cut into a trapezoidal shape so as to store the photo film in a light-tight manner. In a photographic film package including an envelope, at least one of the first carrier sheet and the second carrier sheet is provided with at least one of a detection opening or a detection notch for detecting the emulsion coating surface of the photographic film. Featured photo film package. 5. A sheet-shaped photographic film, one end of which is releasably attached to the rear end of the photographic film, and the other end of which is detachably attached to the first carrier sheet having a clip fixed thereto and the leading end of the photographic film. A photo film unit consisting of a second carrier sheet and an insertion opening closed at the rear end by the clip, and a reinforcing sheet is joined to the tip end cut into a trapezoidal shape so as to store the photo film in a light-tight manner. In a photographic film package including an envelope, a tape is attached to the second carrier sheet so as to prevent the second carrier sheet from moving in the light-shielding envelope without being bent after the photographing is finished so that the light-shielding envelope does not come off from the light-shielding clip. A photo film package characterized by being made to wear. 6. A sheet-shaped photographic film, one end of which is releasably attached to the rear end of the photographic film, and the other end of which is detachably attached to the first carrier sheet and a clip fixed to the other end of the photographic film. A photo film unit consisting of a second carrier sheet and an insertion opening closed at the rear end by the clip, and a reinforcing sheet is joined to the tip end cut into a trapezoidal shape so as to store the photo film in a light-tight manner. A photographic film package including an envelope, wherein the first carrier sheet and / or the second carrier sheet is a photographic film, EAV resin 30 to 70% by weight, SB
R 4-20% by weight, rosin tackifier 4-25% by weight, chlorinated polyethylene resin 6-20% by weight, amide modified resin 4-15% by weight, wax 1-10% by weight, antioxidant 0.01- A photographic film package, which is removably attached with an adhesive composed of a resin composition of 2.0% by weight and 0.1 to 8% by weight of silica.