JPH06242587A - Vessel for liquid - Google Patents

Abstract

PURPOSE:To obtain a vessel for liquid capable of easily reducing the volume, that is, reducing the required space after use without injuring handleability for users. CONSTITUTION:A flexible vessel main body 12 is provided with a 1st and 2nd bellows parts, 16, 18 for expanding and contracting the vessel main body 12 along the direction almost perpendicularly intersecting to the projecting direction of the mouth part 14 of the vessel main body and the self-standing property of the vessel main body 12 is secured owing to the shape of the bellows parts 16, 18. And the vessel main body 12 expands and contracts along the bellows parts 16, 18 corresponding to external force in a state of removing a cap 30. As a result, the vessel main body is folded (squeezed) by furthermore contracting the bellows parts 16, 18 after use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid container, and more particularly to a liquid container suitable as a processing liquid container 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 to provide rigidity Liquid containers are used. This is to make it easy for the user to attach importance to the independence of the container, the liquid filling suitability in the factory, or the liquid filling suitability to the processing tank, and the export dangerous goods transportation regulation (un 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.

[0003]

However, the conventional rigid liquid container maintains the shape of the container even after the contents are discharged and emptied because of its rigidity. Therefore, 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.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a liquid container in which the volume can be easily reduced after use, that is, the required space can be easily reduced, without impairing the user's ease of use. Especially.

[0005]

A liquid container according to claim 1 is a liquid container which is opened and closed by a lid member having a hard mouth portion projecting upward from a flexible container body and engaging with the hard mouth portion. The container body and the mouth portion are integrally formed, and the container body has a bellows portion for expanding and contracting the container body along a direction substantially orthogonal to the projecting direction of the mouth portion.

[0006]

According to the liquid container of claim 1, since the container body has a bellows portion for expanding and contracting the container body along a direction substantially orthogonal to the projecting direction of the mouth portion, the shape of the bellows portion is formed. This ensures the independence of the container body. Further, when the lid member is removed, the container body expands and contracts along the bellows portion in response to an external force.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

The liquid container 10 of the embodiment shown in FIG. 1 has a flexible container body 12 and a hard mouth portion 14 projecting upward from the container body 12, and the container body 12 and the mouth portion are provided. 14 and 14 are integrally formed by blow molding.

First, the container body 12 is expanded and contracted in the protruding direction of the mouth portion 14, that is, in the direction orthogonal to the vertical axis (AA) direction (direction C and D in FIG. 1). , Second bellows portions 16 and 18 are formed.

More specifically, the container body 12 has an arcuate side wall portion 20 on the right side of the drawing in FIG. 1 and an axially orthogonal direction extending from the lower end of the arcuate side wall portion 20 to the axially orthogonal direction outer side. A step portion 24 configured by the installation surface 22 is formed, and the first bellows portion 16 is formed on a front surface in the arrow B direction below the step portion 24. The second bellows portion 18 is formed so as to face the first bellows portion 16 and extends from the bottom wall 12A to the top wall 12B on the rear surface in the arrow B direction. These first and second bellows portions 16 and 18 are formed by alternately forming the outer surface and the inner surface of the side wall of the container body 12 along the axis orthogonal direction (arrow C and D directions). Bellows 1
6 and the second bellows portion 18 are formed by using a female die having a so-called wavy tip so that the concave portions and the convex portions face each other during blow molding.

Further, a handle portion 26 is provided on the container body 12 between the upper end portion of the arcuate side wall portion 20 and the axially extending surface 22. The handle portion 26 is blow-molded. At that time, it is formed to be relatively thick using a mold.

Although not shown in FIG. 1, the bottom wall 12A is actually provided with a rib for lifting the central portion upward in a curved state, and this rib is, for example, blow-molded by a two-piece mold. It is formed by utilizing the joint portion that is generated when performing, thereby improving the stability when the liquid container 10 is stood up.

The mouth portion 14 has a substantially cylindrical shape, and a male screw 14A is formed on the outer circumference of the upper end portion thereof. Flange 2 with a shape cut to have the same chord length
8 is formed so as to project in the direction orthogonal to the axis. This mouth 1
4 is formed integrally with the container body 12 by blow molding. At this time, since the diameter of the mouth portion 14 is smaller than that of the container body 12, it is formed to be thicker than the container body 12. Therefore, the mouth portion 14 is formed to be rigid to some extent. Where mouth 1
4, the average thickness of the flange portion 22 and the vicinity thereof is preferably 1 to 4 mm, more preferably 1 to 3 mm, and particularly preferably 1.2 mm to 2.5 mm. The wall thickness is preferably 0.1 mm
~ 1.5 mm, more preferably 0.2 mm to 1.0 m
m, particularly preferably 0.3 mm to 0.7 mm, and the difference between the two is preferably 0.2 mm or more, more preferably 0.5 mm or more.

A cap 30 as a hard lid member having a female screw (not shown) which is screwed with the male screw 14A is formed on the inner wall of the mouth portion 14, and the upper opening 32 of the mouth portion 14 is opened and closed. It is supposed to be done. Cap 30
Is formed of polypropylene or high density polyethylene (HDPE), for example. 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
cc to 0.97 g / cc can be used.

When a gas barrier property is required for the liquid container 10 depending on the liquid to be filled, the required gas barrier property can be easily provided by changing the material and raw material 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 / NY) 2
It is formed by a multi-layer structure mainly composed of low density polyethylene such as a layer structure 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 ° C. 6
5%).

On the other hand, the liquid container 10 is made of low density polyethylene (LDP) when it is formed for a liquid such as a fixing liquid which does not necessarily require an O ₂ barrier property.
E) Simple substance or ethylene / vinyl acetate copolymer resin (E
VA: In this case, those having a density exceeding 0.940 g / cc can be used). Here, as the low-density polyethylene, a density of 0.940 g / cc or less,
Preferably 0.90 g / cc to 0.940 g / cc, more preferably 0.905 g / cc to 0.925 g / cc
Can be used. Liquid container 1 in this case
The gas barrier property of 0 is 50 ml / m ² · day · at
m (20 ° C. 65%), for example, 100 to 5000 ml /
It may be m ² · day · atm (20 ° C., 65%).

Since the liquid container 10 is formed mainly of low density polyethylene as described above, its weight is about half that of a conventional container formed of high density polyethylene (HDPE).

According to the liquid container 10 of the present embodiment constructed as described above, since the mouth portion 14 is relatively hard and the oval flange portion 28 is formed, both ends of the flange portion 28 are formed. Since the flat surface can be easily clamped by a machine or the like, it is possible to smoothly fill the processing liquid such as the developing liquid and the fixing liquid in the factory. Further, since the mouth portion 14 is relatively hard and the flange portion 28 is easy to hold, the container body 12 (this portion is flexible) is not twisted when the cap 30 is removed. Therefore, the liquid such as the processing liquid in the liquid container 10 is erroneously detected by the mouth portion 1.
Inconvenience such as overflowing from 4 is unlikely to occur. Since the container body 12 is characterized by having flexibility, liquid overflow easily occurs on one side during filling or during use, as compared with a conventional rigid container, and the liquid filling rate is 9% to prevent this.
It is desired to be 5% or less, preferably 90% or less.

Further, since the handle portion 26 is provided,
It is easy to hold and easy to handle when the user pours the processing liquid into the processing tank.

In the container body 12, the first and second bellows parts 16,
Since 18 is formed, the self-supporting property of the liquid container 10 is sufficiently ensured by the shape of the container body 12 itself. In the present embodiment, these bellows parts 16, 18 are
As shown in FIG. 1 and FIG. 2, the case where there are three stages of convex portions is illustrated, but the number of irregularities forming the bellows portion is preferably 2 to 10 and more preferably 4 to 6 or so. Is desirable.

By removing the cap 30 and discharging the processing liquid inside from the mouth portion 14, as shown in FIG. 2, the container main body 12 is discharged according to the amount of the discharged processing liquid.
Of the first and second bellows portions 16 and 18 in the direction orthogonal to the wall (the front wall in the arrow C direction and the front wall in the arrow D direction) are pressed against each other to the first and second walls. 2 bellows 1
By shrinking 6, 18, the head space (the space in the upper part of the container where there is no treatment liquid) can be adjusted. In this way, you can adjust the headspace,
It is also possible to prevent the oxidation by making the internal processing liquid always almost full. This is particularly effective when the processing liquid inside is a fixing liquid or the like.

Furthermore, if the internal processing liquid is discharged to a certain extent or more (substantially the entire amount), the liquid container 10 is laid down,
By further shrinking the first and second bellows portions 16 and 18, the liquid container 10 can be folded (crushed), further volume reduction is possible, and in this state the cap 3
By tightly screwing 0, the negative pressure inside the container is maintained, so that the container body 12 does not elastically return to its original shape, and this volume-reduced state can be maintained.

As described above, the liquid container 10 is made of low-density polyethylene as a main component and is flexible, so that the amount of synthetic resin used in the conventional high-density polyethylene (HDPE),
Compared to a rigid liquid container made of polyvinyl chloride resin (PVC) or the like, the amount is smaller, which reduces the amount of heat generated when incinerated after discarding, which can also contribute to environmental protection.

In this embodiment, the bottom wall 12A of the container body 12 is
Since the ribs are formed on the liquid container 10, the liquid container 10 can be easily folded by using the ribs as folds at the time of folding. Instead of this rib, a recess which becomes a fold line when folding may be formed.

In the above embodiment, the case where the oval-shaped flange portion 28 is projectingly formed at the mouth of the mouth portion has been exemplified, but the flange portion 28 is formed in another shape, for example, square, hexagonal, or octagonal. It may be formed in any shape, such as a flat surface in part. However,
When the mouth portion between the flange portion 28 and the container body 12 is lengthened, this portion can be provided, and thus the flange portion 28 may be formed in a circular shape. In addition, when the mouth portion is lengthened, the mouth portion may be formed in a shape having an axially orthogonal cross section other than a circular shape, and in this case, this portion can be easily clamped by a machine or the like.

Further, by wrapping paper or the like around the outer peripheries of the first and second bellows parts 16 to form the outer cylinder 40 as shown in phantom in FIG. 1, the self-supporting property of the container body 12 is enhanced. Alternatively, the outer cylinder 40 may be formed using a shrink film (heat-shrinkable film), and the outer cylinder 40 may be contracted by heating from the state of FIG. 1 to be brought into close contact with the outer periphery of the container body 12. By these means, if the container body 12 is sufficiently self-supporting only by the outer cylinder 40, the container body 12 itself can be made thin enough to lose the self-supporting property.

The lid member may employ an inner lid 31 as shown in FIG. 3 instead of or together with the outer lid such as the cap 30, and in this case, the inner lid 31 is used as the liquid container. Since it can be formed of the same low-density polyethylene as that of 10, it is preferable not only in terms of production efficiency but also in the case of collecting and reusing the container. Further, a cap with an inner plug may be provided which has a structure in which the inner lid 31 and the cap 30 are integrated. In this case, since the inner plug can ensure a sufficient hermeticity, the entire cap with the inner plug is a container. It can be formed from the same low-density polyethylene as No. 11, which is preferable not only in terms of production efficiency as described above, but also when collecting and reusing the container.

In the above embodiment, the case where the handle 26 is formed has been described as an example. However, instead of this handle, a mold recess may be formed in the container body so as to be gripped from both sides.

The above embodiment is an example of the present invention, and it goes without saying that the shape of the container body is not limited to the shape of the above embodiment.

In the above embodiments, the internal volume of the liquid container is not specified, but the present invention can be applied to containers having an internal volume of several hundred milliliters to several liters (specifically, 2 to 5 liters). It is a thing.

In the above embodiment, the case where the liquid container according to the present invention is used to fill the processing liquid (which will be described later) used for the development processing of the photosensitive material has been exemplified. It can also be used as a beverage container filled with other liquids such as various beverages.

As the photographic processing agent filled in the liquid container according to the present invention (hereinafter simply referred to as "the present invention is applied"), known processing agents can be used. 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 developer 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 process 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 "Photo Industry Separate Volume, Latest Photo Prescription Handbook" by Akira Sasai (Photo Industry 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 rinsing water include color developing replenishing solutions described in JP-A-1-93,739 (Examples, particularly Example 2). Color developing replenisher), JP-A-2-50,
No. 157, the color development replenisher (of the examples, especially the color development replenisher of Example 4, particularly CD-2).
0), the color developing replenisher described in JP-A-2-91,642 (of the examples, particularly the color developing replenisher of Example 1, especially No. 6), JP-A-3-13,941. The bleach-fixing solution described in the official gazette (of the example, especially the bleach-fixing solution of the example 1), the washing water described in JP-A-3-13,941 and especially the one described in the example 1 Each can be used. These treatment liquids may be stored in the container as they are, or may be concentrated and stored.

[0043]

As described above, according to the present invention,
There is an unprecedented excellent effect that the volume can be easily reduced after use without impairing the usability for the user.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a liquid container according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the liquid container of FIG. 1 is somewhat reduced in volume.

FIG. 3 is a front view of a mouth part that is partially broken to show an inner lid.

[Explanation of symbols]

 10 Liquid Container 12 Container Body 14 Mouth 16 First Bellows 18 Second Bellows

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] January 20, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0028

[Correction method] Change

[Correction content]

In the above embodiment, the case where the handle 26 is formed has been described as an example, but instead of this handle, a concave portion for gripping which can be grasped from both sides may be formed in the container body using a molding die. In addition, the first and second bellows parts 16, 18
Increase the depth of the concave part and hold it directly so that the handle,
The grip recess or the like may be omitted.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takahiko Funabashi 1-3-1, Uchisaiwai-cho, Chiyoda-ku, Tokyo Within Tokan Kogyo Co., Ltd. (72) Inahi Yasuhisa Enomoto 2829, Okinouchi, Egawa, Sashima, Ibaraki Tokan Kogyo Co., Ltd.

Claims (1)

[Claims] 1. A liquid container in which a hard mouth portion protruding upward from a flexible container body is opened and closed by a lid member engaging with the hard mouth portion, wherein the container body and the mouth portion are integrally formed. At the same time, the container for liquid has a bellows portion for expanding and contracting the container body along a direction substantially orthogonal to the projecting direction of the mouth portion.