JPH075667A - Container for photographic processing composition - Google Patents

Abstract

PURPOSE:To provide a container for a photographic processing compsn. which maintains a folded state in the state of opening a mouth part from which a cap, etc., are removed. CONSTITUTION:The ratio of the thickness in the part of the angle furthest from a central axis A-A at the axiorthogonal section of bellows parts 16 and the thickness in the parts on both sides thereof is set larger than 1/3 and smaller than 1 and, therefore, even if a container body 12 is formed at the overall average thickness to the extent that the container body itself is capable of ensuring the self-supportability, the container body expands and contracts according to the action of compressive force in the state of removing the cap 38. The extracted state is maintained if the external force is removed in this state. The container is, therefore, easily reduced in volume by removing the cap 38 and contracting the bellows parts 16 after the use. The container is recoverable in this reduced volume state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for a photographic processing composition, and more particularly to a container for a photographic processing composition suitable as a container for a processing solution used for developing a photosensitive material.

[0002]

2. Description of the Related Art Conventionally, high-density polyethylene (HD) has been used as a processing liquid container for a photosensitive material processing device such as an automatic developing device.
PE, polyvinyl chloride resin (PVC), polyethylene terephthalate (PET) and other single layer materials, or nylon / polyethylene (NY / PE) multilayer materials such as blow molding or injection blow molding, which have rigidity Containers for photographic processing compositions have been used. This emphasizes the independence of the container, the suitability for filling the liquid in the factory or the suitability for injecting the liquid into the processing tank to make it easy for the user to use, and also the un regulation (export dangerous goods transportation regulation, that is, falling at -18 ° C). This is to ensure the strength that can deal with the legal regulations that take strength into account) and regulations on the transportation of poisonous substances.

On the other hand, recently, a blow-molded container has been developed which is provided with a bellows portion on the body and can be folded by compression.

[0004]

However, in the conventional rigid container for photographic processing composition, the container shape is maintained even after the contents have been discharged and emptied due to its rigidity. However, because of this, when the user disposes of the product after using it, it is difficult to crush it, and there is a problem that it is relatively bulky.

On the other hand, in the conventional foldable blow-molded container, the folded state is surely maintained while the external force in the compression direction is applied or while the cap is firmly occupied in the compressed state. It can be maintained, but it will return to its original shape when the cap is removed. In this type of container, since the cap and the container are generally made of resins of different materials, when the blow molded container is reused as the material of the resin molded product, the cap and the container are not used. It is necessary to collect the container separately, and when the used container is collected for the purpose of reuse, it is bulky and the collection efficiency is lowered.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a container for a photographic processing composition which maintains a folded state in a mouth open state with a cap or the like removed.

[0007]

The invention according to claim 1 is
A container for a photographic processing composition, in which a hard mouth protruding in the axial direction from a container body having flexibility is opened and closed by a lid member that engages with the container, and has a bellows part in at least a part of the container body in the axial direction. The container body is formed into a polygonal cross-section by blow molding, and the ratio of the wall thickness of the corner farthest from the central axis in the cross section orthogonal to the axis of the bellows to the wall thickness of both sides thereof is 3 minutes. It is characterized in that it is greater than 1 and less than or equal to 1.

According to the second aspect of the present invention, a hard mouth portion projecting from the flexible container body in the axial direction is opened and closed by a lid member engaging with the rigid mouth portion, and at least a part of the container body in the axial direction is opened. A container for a photographic processing composition having a bellows part, wherein the container body is formed by blow molding, and the bellows parts are alternately arranged along the axial direction from the mouth side toward the bottom side and on the bottom side. It is formed from a plurality of steps of annular convex portions and annular concave portions whose diameter gradually increases as it goes, and the axial dimension of the one annular convex portion closer to the mouth than the annular maximum protruding portion and the one annular convex portion. The ratio of the annular maximum protruding portion of the other annular convex portion adjacent to the mouth portion side through the annular concave portion to the axial orthogonal projection length from the annular concave portion is 0.7 or more and 1.3 or less. It is characterized by

According to a third aspect of the present invention, a hard mouth portion projecting from the flexible container body in the axial direction is opened and closed by a lid member engaging with the rigid mouth portion, and at least a part of the container body in the axial direction is opened and closed. A container for a photographic processing composition having a bellows part, wherein the container body is formed by blow molding, and the bellows part has a plurality of stages arranged alternately along the axial direction from the mouth side to the bottom side. It is formed of an annular convex portion and an annular concave portion, and R is provided in the vicinity of the annular maximum protruding portion of each annular convex portion, and at least one of the mouth side and the bottom side of the annular maximum protruding portion
Is formed, and the ratio of the radius of curvature of the R portion to the axial dimension of the annular convex portion on the mouth side of the annular maximum protruding portion is 1.
It is characterized by being set to 1 or more and 3.0 or less.

[0010]

According to the container for photographic processing composition of claim 1, the ratio of the wall thickness at the corner farthest from the central axis in the cross section orthogonal to the axis of the bellows to the wall thickness at both sides thereof is 3 minutes. Of 1
Since it is set to 1 or less, even if the container body is formed to have an average thickness as a whole so that the container body itself can maintain its self-supporting property, with the lid member removed, the container body may be affected by the action of compressive force. When the container body expands and contracts and the external force is removed while it is compressed, the state is maintained. Therefore, after use, it is possible to easily reduce the volume (reduce the required space) by removing the lid member and shrinking the bellows portion, and it is possible to collect the volume reduction state.

According to the second aspect of the present invention, the bellows portions are alternately arranged from the mouth side toward the bottom side, and a plurality of stages of annular convex portions whose diameter gradually increases toward the bottom side are provided. Since it is formed from an annular recess, even when the container body is formed to have an overall average wall thickness that can ensure self-supporting by itself, when the lid member is removed, the container body is affected by the action of compressive force. The container body expands and contracts. Further, the axial dimension of the one annular convex portion closer to the mouth side than the annular maximum protruding portion and the annular maximum protruding portion of the other annular convex portion adjacent to the one annular convex portion on the mouth side via the annular concave portion. Since the ratio of the protrusion length from the annular concave portion to the axial orthogonal direction is 0.7 or more and 1.3 or less, if the external force is removed in the compressed state, the return to the original shape is prevented. The state is maintained.

According to the third aspect of the invention, since the bellows portion is formed of a plurality of stages of annular convex portions and annular concave portions which are alternately arranged from the mouth side toward the bottom side, the container main body is formed. Even when it is formed to have an average thickness so that it can maintain its independence by itself, with the lid member removed,
The container body expands and contracts according to the action of the compressive force. Further, an R portion is formed on at least one of the mouth side and the bottom side of the annular maximum protruding portion of each annular convex portion, and the radius of curvature of this R portion and the annular side of the annular maximum protruding portion of each annular convex portion to the mouth portion side. Since the ratio to the axial dimension of is 1.1 or more and 3.0 or less, when the external force is removed in the compressed state, the original shape is prevented from returning and the state is maintained.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A first embodiment of the present invention will be described below with reference to FIGS.
It will be described based on.

A container 10 for a photographic processing composition of the embodiment shown in FIG. 1 has a flexible container body 12 and a hard mouth portion 14 projecting from the container body 12 in the axial direction (upward in FIG. 1). The container body 12 and the mouth 14 are integrally formed by blow molding. In addition, the photographic processing composition container 10 has a substantially regular hexagonal cross-section (see the plan view of FIG. 2).

The container body 12 is formed with a bellows portion 16 continuously from the boundary with the mouth 14 to the bottom. The bellows portion 16 has first, second, third, fourth portions arranged at predetermined intervals in the axial direction (vertical direction in FIG. 1).
5th annular convex part 18,20,22,24,26, and 1st
Which connects the annular protrusion 18 and the second annular protrusion 20 of the first
The annular recess 28, the second annular recess 30 that connects the second annular projection 20 and the third annular projection 22, and the third annular projection 22 and the fourth annular projection 24. The third annular concave portion 32, the fourth annular convex portion 24, and the fifth annular convex portion 26 which are connected to each other.
And a fourth annular recess 34 that connects the

The first to fifth annular convex portions 18 to 26
Each of the first to fourth annular recesses 28 to 34 has a substantially regular hexagonal cross section orthogonal to the axis. The axial dimension of the first, second, third, and fourth annular convex portions 18, 20, 22, 24 is a diagram of the respective annular maximum protruding portions that protrude the maximum amount in the direction orthogonal to the central axis AA. The upper side and the lower side in 1 have substantially the same size. In addition, the fifth annular convex portion 26,
The lower side of the maximum annular protrusion is slightly larger than the upper side.

The amount of protrusion of the maximum annular protrusions of the first, second, third, fourth and fifth annular protrusions 18, 20, 22, 24, 26 in the direction orthogonal to the axis is as shown in FIGS. As shown in FIG. 2, the first annular convex portion 18 located closest to the mouth portion 14 side is the smallest, and is gradually increased toward the bottom portion side, and the fifth annular convex portion 26 located closest to the bottom portion side is the largest. Has been made larger.

Further, as shown in FIG. 1, the axial dimension a ₁ on the mouth side (the upper side in FIG. 1) of the maximum annular protrusion of the second annular protrusion 20 and the first annular protrusion 18 are set. The ratio of the maximum annular protrusion to the protrusion length b ₁ from the surface of the first annular recess 28, a ₁ / b ₁ is 0.7 to 1.3, preferably 0.9.
~ 1.1. The relationship is that the second annular convex portion 20 and the third annular convex portion 22, the third annular convex portion 22 and the fourth annular convex portion 24, the fourth annular convex portion 24 and the fifth annular convex portion 26. Is satisfied with That is, a ₂ / b ₂ , a ₃ / b ₃ , a
₄ / b ₄ is 0.7 to 1.3, preferably 0.9 to 1.1
It is said that

Further, in the first, second, third, fourth and fifth annular convex portions 18, 20, 22, 24 and 26, R is provided on the upper and lower portions of the respective annular maximum protruding portions. Part 18A, 1
8B, 20A, 20B, 22A, 22B, 24A, 24
B, 26A, and 26B are formed, respectively. The radius of curvature r of these R portions is 5 mm or more, preferably 15 m
m to 60 mm, more preferably 15 mm to 40 mm. Further, the radius of curvature r of the R portion in each of the annular convex portions is
And the axial dimension of the annular maximum protrusion on the mouth side, r / a
Is 1.1 to 3.0, preferably 1.3 to 1.8.

Further, the maximum diameter of the first annular concave portion 28 is 85% or less, preferably 40 to 75%, and more preferably 50 to 75% of the maximum diameter of the first annular convex portion 18, The second annular recessed portion 30 is set to have the same relationship as the second annular recessed portion 20, and the third annular recessed portion 3 is formed.
2 has the same relationship with the third annular projection 22 and the fourth annular recess 34 has the same relationship with the fourth annular projection 24. It is preferable for improving the folding efficiency.

The mouth portion 14 is formed in a substantially cylindrical shape, and at the middle portion in the axial direction (vertical direction), both ends of a circle are cut in parallel to have the same chord length (see FIG. 2). Is provided with a flange portion 36. The mouth portion 14 is integrally formed with the container body 12 by blow molding using a parison having a circular cross section. At that time, since the diameter of the mouth portion 14 is smaller than that of the container body 12, the container body 12 has a smaller diameter. 12
The mouth portion 14 can be formed so as to be thicker, and thus the mouth portion 14 is formed to be hard to some extent. Here, the average thickness of the mouth portion including the mouth portion 14, the flange portion 36, and their vicinity is preferably 0.5 to 4 m.
m, more preferably 0.5 to 3 mm, particularly preferably 1.2 mm to 2.5 mm, and the average thickness of the container body 12 is preferably 0.1 mm to 1.5 m.
m, more preferably 0.2 mm to 0.7 mm, particularly preferably 0.3 mm to 0.5 mm,
The difference between the two is preferably 0.2 mm, more preferably 0.
It is set to about 5 mm. Further, it is desirable that the ratio of the average thickness of the mouth portion and the average thickness of the main body is about 2.0 to 10.0. By doing so, the total weight can be reduced without impairing usability.

The hexagonal corners of the container body 12 that are the farthest away from the axis AA (indicated by arrows B in FIG. 2) are the thinnest, but the meat of this portion is the thinnest. It is desirable that the ratio of the thickness and the thickness of the portions on both sides thereof (indicated by the arrow C in FIG. 2) be 1/3 to 1, preferably 1/2 to 1.

On the outer periphery of the upper end of the mouth portion 14, the male screw portion 1
4A is formed, and a female screw portion that is screwed to the male screw portion 14A is screwed into a cap 38 as a lid member formed on the inner wall of the male screw portion 14A so that the upper opening of the mouth portion 14 is opened and closed. . The cap 38 is formed of, for example, polypropylene or high density polyethylene (HDPE). Here, as the high-density polyethylene, for example, one having a density larger than 0.940 g / cc, preferably larger than 0.940 g / cc and 0.98 g / cc or less,
More preferably 0.945 g / cc to 0.97 g / cc
Can be used.

When the liquid for filling the photographic processing composition container 10 requires a gas barrier property, the required gas barrier property can be easily provided by changing the materials and raw materials used. For example, among photographic processing liquids, when it is formed for a liquid requiring a high O ₂ barrier property such as a developing liquid, low density polyethylene / polyvinyl alcohol / ethylene copolymer / low density polyethylene (LDPE / EVOH). / LDPE) 3 layer structure, low density polyethylene / nylon (LDPE / N
It is formed by a multi-layer structure mainly composed of low-density polyethylene such as the two-layer structure of Y) and has a gas barrier property of 25 ml.
/ M ² · day · atm (20 ° C 65%) or less, preferably 0.5 to 10 ml / m ² · day · atm (20
℃ 65%).

On the other hand, when the photographic processing composition container 10 is formed for a liquid which does not necessarily require an O ₂ barrier property such as a bleaching solution or many fixing solutions, it is a low density polyethylene (LDPE). Simple substance or ethylene / vinyl acetate copolymer resin (EVA: density 0.9 in this case)
(Above 40 g / cc can also be used). Here, the low-density polyethylene has a density of 0.940 g / cc or less, preferably 0.90 g / cc.
~ 0.940 g / cc, more preferably 0.905 g / cc
cc to 0.925 g / cc can be used. In this case, the gas barrier property of the container 10 for the photographic processing composition is 50 ml / m ² · day · atm (20 ° C. 6
5%), for example 100 to 5000 ml / m ² · day ·
It may be atm (20 ° C. 65%).

Since the container 10 for the photographic processing composition is formed mainly of low density polyethylene as described above,
It is lighter in weight than a conventional container made of high density polyethylene (HDPE).

According to the photographic processing composition container 10 of the present embodiment constructed as described above, the mouth portion 14 is relatively hard, and the flat surfaces 36A, 36 parallel to the flange portion 36 are mutually parallel.
Since B (see FIG. 2) is formed, it is possible to smoothly fill the processing liquid such as the developing liquid and the fixing liquid in the factory. Further, the mouth portion 14 is relatively hard, and the flange portion 36
Since it is easy to hold, the container body 12 (this part is flexible) is not twisted when the cap 38 is removed. Therefore, inconveniences such as the liquid such as the processing liquid in the photographic processing composition container 10 accidentally overflowing from the mouth portion 14 are unlikely to occur. Since the container 10 for the photographic processing composition is characterized by having flexibility, liquid overflow during filling or use tends to occur on one side as compared with a conventional rigid container, and the liquid should be prevented to prevent this. The filling rate is 95 when the liquid container 10 is pulled in the axial direction and the bellows portion 16 is maximally extended.
% Or less, preferably about 95 to 85%.

When the bellows portion 16 is extended,
Since the bellows portion 16 has irregularities, it is easy to hold in the hand, and when the user pours the treatment liquid into the treatment tank, the bellows portion 16 automatically expands and contracts so that the liquid comes out quickly and air entrapment is reduced. This liquid injection is easy to handle and the liquid injection work can be performed smoothly.

In this embodiment, the self-supporting property of the container 10 for the photographic processing composition is sufficiently ensured by the shape of the container body 12 itself. Further, since the bellows portion 16 is formed in the container body 12, by removing the cap 38 and discharging the processing liquid inside from the mouth portion 14, the mouth portion 14 is discharged according to the amount of the discharged processing liquid. Can be pressed downward to shrink the bellows portion 16 and adjust the head space (the space in the upper part of the container where there is no processing liquid). Since the head space can be adjusted in this way, it is possible to prevent the oxidation by keeping the inside of the processing liquid almost always full.

Further, when the processing liquid in the interior is discharged to a certain amount or more (substantially the entire amount), the mouth portion 14 is further pressed downward so that the container 10 for the photographic processing composition has a shape as shown in FIG. It is possible to further reduce the volume.

The volume reduction of the container in this embodiment means that the pressure required for volume reduction varies depending on the size of the container.
Preferably 1 to 20 kg / cm ² , more preferably 5 to
Was 10 kg / cm ^2, the container volume more than 1 liter, preferably 3~20kg / cm ^2, more preferably refers to what can be reduced in volume at a pressure of about 5 to 10 kg / cm ^2. (The same applies to the following examples.) In addition, in this container 10 for a photographic processing composition, the bellows portion 1 is characterized by the dimensions and dimensional ratios of various portions as described above.
Since each part of 6 is configured, it is possible to improve the folding efficiency by deeply folding the bellows part 16 when the bellows part 16 is contracted to reduce the volume after discharging the processing liquid inside. In addition to the dimensions and ratios of these parts, the container body 1
Since the wall thickness of No. 2 is configured to have the above-described characteristics, in the folded state shown in FIG.
Even if 8 is removed, it will not return to its original shape,
The recovery efficiency can be improved even when the resin molded product is recovered separately from the cap 38 for the purpose of reuse as a material.

The dimensions and dimensional ratios of the respective parts in the first embodiment are not limited to those of the polygonal container such as the hexagonal container described above, but may be reduced to those of a circular or elliptical container. This is preferable from the viewpoint of preventing restoration to the original shape after conversion.

The volume reduction rate, which is the ratio of the state before the bellows portion 16 shown in FIG. 1 is compressed and the state shown in FIG. 4 where the bellows portion 16 is completely compressed, is 50% or less, preferably 40%.
% Or less, more preferably 30% or less. However, this ratio is 10% or more,
It is preferable in terms of design. Here, the volume reduction rate means the liquid container 1
It is the volume ratio calculated by utilizing the height change of the water surface when the cap 30 is put on 0 and the water is submerged.

Further, since the container 10 for the photographic processing composition is made of low density polyethylene as a main component as described above, the amount of the synthetic resin used is the conventional high density polyethylene (HDPE) or polyvinyl chloride resin. The amount is smaller than that of a rigid container for photographic processing composition made of (PVC) or the like, which reduces the amount of heat generated when incinerated after discarding, which can also contribute to environmental protection.

Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 4 shows a container 40 for a photographic processing composition according to the second embodiment together with a cap 38 and an inner stopper 39.

The container 40 for the photographic processing composition has a flexible container body 42 and a hard mouth portion 44 projecting from the container body portion 42 in the axial direction (upward in FIG. 4). The portion 42 and the mouth portion 44 are integrally formed by blow molding.

The container body 42 has a substantially rectangular cross-section in the direction orthogonal to the axis, and the lower portion of the connecting portion 42A (which has a substantially quadrangular pyramid shape) with the mouth portion 44 is continuous to the bottom. A bellows portion 46 is formed.

The bellows portion 46 is a first, second, third, fourth, and fifth abacus ball-shaped portion 48 as an annular projecting portion arranged at a predetermined interval in the axial direction (vertical direction). , 5
It is configured to include 0, 52, 54 and 56. Here, the abacus ball-shaped portion is an outer shape composed of a pyramid or a cone-shaped portion in which upper and lower two heads having a common central axis ZZ (see FIG. 5) and a bottom face and having mutually opposite directions are cut off. Means a shape part having. This word will be used in the same meaning below.

The first, second, third, fourth, and fifth abacus ball-shaped portions 48, 50, 52, 54, 56 have the central axis of the photographic processing composition container 40 as their central axis. It has an annular maximum protruding portion (maximum circumferential length portion) of a substantially rectangular shape in plan view (see FIG. 6) protruding by the same dimension in the direction orthogonal to the axis.

The abacus ball-shaped portions adjacent to each other, that is, the first abacus ball-shaped portion 48, the second abacus ball-shaped portion 50, and the second abacus ball-shaped portion 50.
Abacus ball shape part 50 and a third abacus ball shape part 52, a third abacus ball shape part 52 and a fourth abacus ball shape part 54, a fourth abacus ball shape part 54 and a fifth abacus ball shape part 56 are sequentially connected via first, second, third, and fourth annular connecting portions 58, 60, 62, 64 as annular concave portions each having a rectangular shape in plan view.

The second, third, and fourth abacus ball-shaped portions 50, 52, and 54 located in the middle in the axial direction have the same axial dimension at the upper and lower sides of the annular maximum protrusion in FIG. They are formed in the same shape.

The axial dimension of the first abacus ball-shaped portion 48 located closest to the mouth portion 44 side in the axial direction is such that the mouth portion 44 side of the annular maximum protruding portion is larger than the bottom portion side. On the contrary, the axial dimension of the fifth abacus ball-shaped portion 56 located closest to the bottom in the axial direction is smaller on the mouth 44 side of the annular maximum protrusion than on the bottom side. Axial dimension on the bottom side of the annular maximum protrusion of the first abacus ball-shaped portion 48 and the fifth abacus ball-shaped portion 5
The axial dimension of the annular maximum protruding portion 6 on the side of the mouth portion 44 is approximately 1/2 of the axial dimension of the second, third, and fourth abacus ball-shaped portions 50, 52, and 54.

Further, the first, second, third, fourth and fifth abacus ball-shaped portions 48, 50, 52, 54 and 56 are provided with respective annular maximum protrusions on the mouth portion 44 side and the bottom portion side. R in the part
Parts 48A, 48B, 50A, 50B, 52A, 52B,
54A, 54B, 56A, 56B are formed, respectively. The radius of curvature r of these R portions is 5 mm or more, preferably 15 mm to 60 mm, more preferably 15 mm to
It is set to 40 mm. The ratio r / a of the radius of curvature r of the R portion of each abacus ball-shaped portion to the axial dimension a of the annular maximum protruding portion on the side of the mouth portion 44, r / a is 1.1 to 3.0, preferably 1. .3 to 1.8.

Further, the maximum diameters of the first, second, third and fourth annular connecting portions 58, 60, 62 and 64 are the first, second, third, fourth and fifth abacus ball shaped portions. 48, 50, 52, 5
85% or less with respect to the maximum diameter of 4,56, preferably 40 to
It is preferably 75%, more preferably 50 to 75% in order to improve the folding efficiency.

A concave portion 56C is formed on the bottom surface of the fifth abacus bead-shaped portion 56, whereby the container 4 for the photographic processing composition is formed.
The stability is improved when 0 is set.

The mouth portion 44 is the mouth portion 14 in the first embodiment.
It is integrally formed with the container body 42 by blow molding in the same manner as in. At this time, the mouth portion 44 is formed to be hard to some extent. Also, this mouth 44
Is formed into a substantially cylindrical shape, and a flange portion having a cross-sectional shape (see FIG. 6) obtained by cutting both ends of a circle in parallel at an intermediate portion in the axial direction (vertical direction in FIG. 4) so as to have the same chord length. Four
5 are provided. Here, the mouth portion 44 and the flange portion 4
5 and the average wall thickness of the mouth part including these vicinity are preferably 0.5 to 4 mm, more preferably 0.5 to 3 mm,
Particularly preferably, it is formed to have a thickness of 1.2 mm to 2.5 mm, and the average thickness of the container body 42 is preferably 0.1 mm.
mm-1.5 mm, more preferably 0.2 mm-0.7
mm, particularly preferably 0.3 mm to 0.5 mm, and the difference between them is preferably 0.2 mm, more preferably 0.5 mm. Furthermore,
The ratio of the average thickness of the mouth and the average thickness of the main body is 2.0 to 1
It is desirable to set it to about 0.0. By doing so, the total weight can be reduced without impairing usability.

The corners (indicated by arrows D in FIG. 6) of the rectangle whose distance from the central axis of the container body 42 is the longest are formed thinnest. It is desirable that the ratio to the wall thickness of the portions on both sides (indicated by arrows E and F in FIG. 6) is 1/3 to 1, preferably 1/2 to 1. Note that the thicknesses of the portions corresponding to the long sides and the short sides of the rectangles indicated by the arrows E and F are made substantially uniform. Therefore, in this embodiment, so-called parison controller and profile die are used for parison control during blow molding.

A male screw portion 44A is formed on the outer periphery of the upper end portion of the mouth portion 44, similarly to the mouth portion 14 in the first embodiment, and a female screw portion which is screwed into the male screw portion 44A is formed on the inner wall thereof. The cap 38 is screwed.

An inner plug 39 as a lid member is detachably attached to the mouth portion 44, and the upper opening 66 of the mouth portion 44 is opened and closed by the inner plug 39. The inner plug 39 is in close contact with the inner peripheral surface of the upper opening 66 of the mouth portion 44 in the vicinity of the open end thereof, and has a function of preventing the processing liquid therein from leaking to the outside.

The inner plug 39 is made of the same material as the photographic processing composition container 40. Container 4 for photographic processing composition
No. 0 is made of the same material as the container 10 for the photographic processing composition in the first embodiment. Therefore, the inner plug 39 and the container 40 for the photographic processing composition are formed flexibly mainly with low-density polyethylene, so that the container should be more securely sealed than the conventional container molded with high-density polyethylene or the like. It is possible to prevent leakage of internal processing liquid even if the product is apologized during use.

According to the second embodiment constructed as described above, the same or equivalent action and effect as the first embodiment can be obtained, and the first, second, third, fourth and fourth embodiments are also provided. Since the amount of protrusion of the annular maximum protrusions of the fifth abacus ball-shaped portions 48, 50, 52, 54, 56 in the direction orthogonal to the axis is the same, the outer cylinder can be wound around the bellows portion 46. When the outer cylinder is wound, since the strength of the outer cylinder can be secured to some extent, the wall thickness of the container 40 for the photographic processing composition can be further reduced. As shown in FIG. The space required when the composition container 40 is compressed can be further reduced, and the return to the original shape can be reliably prevented.

Therefore, it is possible to improve the recovery efficiency of the photographic processing composition container 40 that is discarded after use.

Next, a third embodiment of the present invention will be described with reference to FIG. Container 70 for photographic processing composition of this example
Is a flexible container main body 72 and a hard mouth portion 74 protruding axially (upward in FIG. 8) from the container main body 72.
The container main body 72 and the mouth portion 74 are integrally formed by blow molding as in the first and second embodiments.

The container body 72 of the photographic processing composition container 70 has a circular cross section orthogonal to the axis. The container main body 72 is formed with a bellows portion 76 that continues to the boundary with the mouth portion 74 over the entire axial direction (vertical axis direction). The bellows portion 76 is the sixth to tenth abacus ball-shaped portions 78, 80, 8 having the same diameter in the upper and lower five steps in FIG.
2, 84, 86, a fifth annular connecting portion 88 that connects the sixth abacus ball-shaped portion 78 and the seventh abacus ball-shaped portion 80,
A sixth annular connecting portion 90 that connects the seventh abacus ball shape portion 80 and the eighth abacus ball shape portion 82, and the eighth abacus ball shape portion 82 and the ninth abacus ball shape portion 84 are connected. The seventh annular connecting portion 92 and the eighth annular connecting portion 94 connecting the ninth abacus ball-shaped portion 84 and the tenth abacus ball-shaped portion 86 are formed.

Sixth to tenth abacus ball-shaped portions 78, 8
0, 82, 84 and 86 are formed in a vertically symmetrical shape.

Further, the sixth to tenth abacus ball-shaped portions 7
8, 80, 82, 84, 86 maximum axial dimension a of the maximum diameter portion, and the sixth to tenth abacus ball-shaped portions 78, 8
The ratio of the maximum diameter portion of 0, 82, 84, 86 to the protruding length b from the surface of the fifth to eighth annular connecting portions 88, 90, 92, 94, a / b is 0.7 to 1.3, Preferably 0.9-
It is set to 1.1.

Further, the sixth to tenth abacus ball-shaped portions 7
8, 80, 82, 84, 86 have R portions 78A, 78B, 80 at the upper and lower portions of their maximum diameter portions.
A, 80B, 82A, 82B, 84A, 84B, 86
A and 86B are formed respectively. The radius of curvature r of these R portions is 5 mm or more, preferably 15 mm to 60
mm, more preferably 15 mm to 40 mm. Further, the ratio of the radius of curvature r of the R portion and the axis on the upper side of the maximum diameter portion in each abacus ball-shaped portion, r / a, is 1.1 to 3.0,
It is desirable to set it to 1.3 to 1.8.

Further, the fifth to eighth annular connecting portions 8
The diameter dimension of 8, 90, 92, 94 is 85% or less, preferably 40 to 75, with respect to the diameter dimension of the maximum diameter portion of the sixth to tenth abacus ball-shaped portions 78, 80, 82, 84, 86.
%, More preferably 50 to 75%.

The size or dimensional ratio of each part of the bellows part 76 is configured with the above-mentioned characteristics so that the bellows part 41 is formed.
This is because when the container main body 72 is reduced in volume by pressing, the folding efficiency is improved and it is difficult to restore the original shape by being firmly pressed.

A concave portion 86C is formed at the bottom of the tenth abacus bead-shaped portion 86 to improve the stability when the container 70 for the photographic processing composition is stood up.

The container main body 72 and the mouth portion 74 are integrally formed by blow molding by using the same material as in the first and second embodiments described above and by the same manufacturing method. Also, the mouth 7
4 is configured similarly to the mouth portion 14 in the first embodiment and the mouth portion 44 in the second embodiment.

According to the third embodiment, the same action and effect as those of the second embodiment can be obtained.

In the third embodiment, the container body 72
The case where the cross section orthogonal to the axis is circular is shown as an example.
The cross-sectional shape orthogonal to the axis may be formed in an elliptical shape, for example.
When the cross-sectional shape of the container body is elliptical in this way, it is possible to fill a larger volume of liquid etc. than a circular container having the same height dimension and the short radius of the ellipse being the same as its diameter. Even a container having a considerably large capacity (for example, 2 liter to 5 liter) can be grasped by hand. In the case of a photographic processing agent, it is often the case that several types of containers are combined and stored in one box at the same time. It is possible to pack efficiently with less dead space.

The shape of the flange portion formed at the mouth is not limited to the shape illustrated in the first to third embodiments, and other shapes such as a quadrangle, a hexagon, and an octagon are formed. You may. However, when the mouth portion between the flange portion and the container body portion is lengthened, this portion can be provided, and thus the flange portion may be formed in a circular shape or the flange portion may be omitted.

In addition, in the first to third embodiments, the case where the bellows portion is provided in the entire axial direction from the boundary with the mouth of the container body to the bottom has been described, but from the boundary with the mouth to the bottom. You may provide a bellows part in a part of the axial direction of.

In the above-mentioned first to third embodiments, the case where the bellows portion of the container body has five steps of protrusions has been exemplified, but the number of irregularities forming the bellows portion is preferably 2 to 10
More preferably, the number is about 4 to 6.

In the above examples, the case where the container for photographic processing composition according to the present invention is used to fill a processing solution (which will be described later) used for the development processing of a light-sensitive material is exemplified. However, the container for photographic processing composition according to the present invention contains a granular liquid composition, fluid composition, powder composition, etc. other than the processing composition used for the development processing of the silver halide photographic light-sensitive material. It can also be used as a beverage container, and can also be used as a beverage container filled with other liquids such as various beverages.

In the above examples, the internal volume of the container for photographic processing composition is not specified, but in the present invention, an internal volume of 50 ml or more, preferably several 100 ml to several liters (specifically, several liters). , For example 2 to 5 liters).

As the photographic processing agent filled in the container for photographic processing composition according to the present invention (hereinafter, simply referred to as "the present invention is applied"), known processing agents may be used. it can. For example, a color developing solution, a black and white developing solution, a bleaching solution, a fixing solution, a bleach-fixing solution, an adjusting solution, a stabilizing solution and the like can be mentioned.

The color developing solution to which the present invention is applied is preferably an alkaline aqueous solution containing an aromatic primary amine type color developing agent as a main component. As this color developing agent,
Although aminophenol compounds are also useful, p-phenylenediamine compounds are preferably used, and typical examples thereof include 3-methyl-4-amino-N, N-diethylaniline and 3-methyl-4-amino-N. -Ethyl-N-β
-Hydroxyethylaniline, 3-methyl-4-amino-N-ethyl-N-β-methanesulfonamidoethylaniline, 3-methyl-4-amino-N-ethyl-N-β
-Methoxyethylaniline and their sulphates, hydrochlorides or p-toluenesulphonates. Two or more of these compounds can be used in combination depending on the purpose.

The color developing solution contains a pH buffering agent such as an alkali metal carbonate, borate or phosphate, a bromide salt, an iodide salt, a benzimidazole, a benzothiazole or a mercapto compound. It is common to include agents or antifoggants. In addition, if necessary, hydroxylamine, diethylhydroxylamine, sulfite hydrazines, phenylsemicarbazides, triethanolamine, catecholsulfonic acids, triethylenediamine (1,4-diazabicyclo [2,2,2] octane) Various preservatives such as, organic solvents such as ethylene glycol and diethylene glycol, quaternary ammonium salts, development accelerators such as amines, dye-forming couplers, competitive couplers, fogging agents such as sodium boron hydride, 1-phenyl- Three
-Auxiliary developing agents such as pyrazolidone, viscosity imparting agents, various chelating agents represented by aminopolycarboxylic acids, aminopolyphosphonic acids, alkylphosphonic acids, phosphonocarboxylic acids, for example, ethylenediaminetetraacetic acid, nitrilotriacetic acid. , Diethylenetriaminepentaacetic acid, cyclohexanediaminetetraacetic acid, hydroxyethyliminodiacetic acid,
1-hydroxyethylidene-1,1-diphosphonic acid, nitrilo-N, N, N-trimethylenephosphonic acid, ethylenediamine-N, N, N ', N'-tetramethylenephosphonic acid, ethylenediamine-di (o-hydroxyphenyl) Acetic acid) and salts thereof can be used.

The black-and-white developing solution used in the reversal processing includes dihydroxybenzenes such as hydroquinone, 1
Known black-and-white developing agents such as 3-pyrazolidones such as -phenyl-3-pyrazolidone or aminophenols such as N-methyl-p-aminophenol can be used alone or in combination.

As the bleaching agent, compounds of polyvalent metals such as iron (III), peracids, etc. are used. Typical bleaching agents are organic complex salts of iron (III), such as amino acids such as ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, cyclohexanediaminetetraacetic acid, methyliminodiacetic acid, 1,3-diaminopropanetetraacetic acid and glycol etherdiaminetetraacetic acid. Complex salts of polycarboxylic acids, persulfates and the like can be used. Further, the aminopolycarboxylic acid iron (III) complex salt is particularly useful in both the bleaching solution and the bleach-fixing solution.

Examples of the fixing agent include thiosulfates, thiocyanates, thioether compounds, thioureas and a large amount of iodide salts, and the use of thiosulfates is common, especially thiosulfates. Ammonium sulfate can be used most widely. As the preservative for the bleach-fixing solution, sulfite, bisulfite, sulfinic acid or carbonyl bisulfite adduct is preferable.

A typical example of a processing solution such as a color developing solution and a bleach-fixing solution to which the present invention is applied is "Seikagaku Kogaku Separate Volume, Latest Photographic Prescriptive Handbook" by Akira Sasai (Photo Kogaku Publishing Co., Showa 58).
Issued on July 20, 2012).

Typical representative treating agents to which the present invention is applied include the following.

As a color developing solution for a color negative film, a bleaching solution, a fixing solution and a stabilizing solution, JP-A-4-359,24 is known.
No. 9, in particular, the color developing replenisher, bleach replenisher, fixing replenisher, stabilizer N described in Example 1.
o. 18 can each be used. These may be stored in the container as they are, or may be stored after being concentrated.
For example, the stabilizing solution No. 18 may be concentrated 100 times.

The color developing solution and bleach-fixing solution for color paper are those described in JP-A-4-195037, especially the color developing replenisher and bleach-fixing described in Examples, especially Example 2. Each replenisher can be used. Direct color developing solutions for positive color light-sensitive materials, bleach-fixing solutions, and washing water include the color developing replenishing solution described in JP-A-1-93,739 (of the examples, especially the color developing described in Example 2). Replenisher), JP-A-2-50,157
JP-A No. 2-91,642, the color development replenisher (of the examples, particularly the color development replenisher of Example 4, especially CD-20), and the color development replenisher described in JP-A-2-91,642 ( Examples, especially the color developing replenisher of Example 1, No. 6), and the bleach-fixing solution described in JP-A-3-13,941 (of Example, especially bleach-fixing of Example 1). Liquid), and the washing water described in JP-A-3-13,941 can be used, especially that described in Example 1. These treatment liquids may be stored in the container as they are, or may be concentrated and stored.

[0079]

As described above, according to the container for photographic processing composition of the present invention, since the folded state is maintained with the mouth open without the cap and the like, the collection efficiency can be improved. There is an excellent effect that has never been seen.

[Brief description of drawings]

FIG. 1 is a front view showing a container for a photographic processing composition according to a first embodiment of the present invention together with a cap.

2 is a plan view of the container of FIG. 1. FIG.

FIG. 3 is a perspective view showing the container for the photographic processing composition of FIG. 1 in a reduced volume state.

FIG. 4 is a perspective view showing a container for a photographic processing composition according to a second embodiment of the present invention together with a cap and an inner stopper.

5 is a front view of the container for photographic processing composition of FIG. 4. FIG.

FIG. 6 is a plan view of FIG.

FIG. 7 is a perspective view showing the container for the photographic processing composition of FIG. 4 in a reduced volume state together with a cap.

FIG. 8 is a front view showing a container for a photographic processing composition according to a third embodiment of the present invention.

[Explanation of symbols]

 10 Container for Photographic Processing Composition 12 Container Main Body 14 Mouth 16 Bellows 18 First Annular Convex 20 Second Annular Convex 22 Third Annular Convex 24 Fourth Annular Convex 26 Fifth Annular Convex Part 28 First annular recess 30 Second annular recess 32 Third annular recess 34 Fourth annular recess 38 Cap (lid member) 39 Inner plug (lid member) 40 Photoprocessing composition container 42 Container body 44 mouth Part 46 Bellows part 48 1st abacus ball shape part (annular convex part) 50 2nd abacus ball shape part (annular convex part) 52 3rd abacus ball shape part (annular convex part) 54 4th abacus ball shape Part (annular convex part) 56 Fifth abacus ball-shaped part (annular convex part) 58 First annular connecting part (annular concave part) 60 Second annular connecting part (annular concave part) 62 Third annular connecting part (annular part) Recess) 64 Fourth annular connecting portion (annular recess) 70 For photographic processing composition Container 72 Container body 74 Mouth portion 76 Bellows portion 78 Sixth abacus ball shape part (annular convex part) 80 Seventh abacus ball shape part (annular convex part) 82 Eighth abacus ball shape part (annular convex part) 84 Ninth abacus ball-shaped portion (annular convex portion) 86 Tenth abacus ball-shaped portion (annular convex portion) 88 Fifth annular connecting portion (annular concave portion) 90 Sixth annular connecting portion (annular concave portion) 92 Seventh Annular connecting part (annular recess) 94 8th annular connecting part (annular recess)

Claims (3)

[Claims] 1. A photographic process in which a hard mouth portion projecting from a flexible container body in an axial direction is opened and closed by a lid member engaging with the hard mouth portion, and a bellows portion is provided at least in a part of the container body in the axial direction. A container for a composition, wherein the container body is formed into a polygonal cross-section by blow molding, and the wall thickness of the part farthest from the central axis in the cross section orthogonal to the axis of the bellows part and the wall thickness of both sides thereof. A container for a photographic processing composition, characterized in that the ratio is greater than one third and less than or equal to one. 2. A photographic process in which a hard mouth portion projecting from a flexible container body in an axial direction is opened and closed by a lid member engaging with the hard mouth portion, and a bellows portion is provided in at least a part of the container body in the axial direction. A container for a composition, wherein the container body is formed by blow molding, the bellows parts are alternately arranged along the axial direction from the mouth part side toward the bottom part side, and the diameter thereof gradually increases toward the bottom part side. Is formed from a plurality of annular projections and annular recesses that are enlarged in the axial direction, and the axial dimension of the one annular projection on the mouth side of the annular maximum projection and the annular recess in the one annular projection. A photograph characterized in that the ratio of the annular maximum protruding portion of the other annular convex portion adjacent to the mouth portion side to the axial orthogonal projecting length from the annular concave portion is 0.7 or more and 1.3 or less. A container for a treatment composition. 3. A photographic process in which a hard mouth portion projecting from a flexible container body in an axial direction is opened and closed by a lid member engaging with the rigid mouth portion, and a bellows portion is provided at least in a part in the axial direction of the container body. A container for a composition, wherein the container body is formed by blow molding, and the bellows part is arranged alternately along the axial direction from the mouth part side to the bottom part side. Formed from and
An R portion is formed near at least one of the mouth side and the bottom side of the annular maximum protruding portion in the vicinity of the annular maximum protruding portion of each annular protruding portion, and the radius of curvature of this R portion and the annular maximum of each annular protruding portion. A container for a photographic processing composition, characterized in that the ratio with the axial dimension on the mouth side from the protruding portion is 1.1 or more and 3.0 or less.