Container for powder and package

Abstract

A container 100 or 110 for a powdery or granular material includes: a container body portion 10 that contains a powdery or granular material; and a lid body 50. The container body portion 10 includes: a bottom portion 20; and a peripheral wall portion 30 rising from an outer edge of the bottom portion 20. The peripheral wall portion 30 includes: a first inner peripheral wall portion 31 rising from the bottom portion 20 on an inner peripheral side of the peripheral wall portion 30 and having a smaller diameter than that of the lid body 50; a second inner peripheral wall portion 35 having a larger diameter than that of the first inner peripheral wall portion 31 and connected to the first inner peripheral wall portion 31 with a step 33; and a crimping portion 37 that is disposed at an end portion on a side opposite to the bottom portion 20 and is bent toward an inner peripheral side of the container body portion 10. Further, the lid body 50 is disposed between the step 33 and the crimping portion 37 and includes at least a paper layer P and a resin layer R. A package including: the container 100 or 110 for a powdery or granular material; and a powdery or granular material contained therein.

Description

Technical Field

[0001] The present invention relates to a container for a powdery or granular material and a package.Background Art

[0002] Typically, a lid which is crimped to an opening of a container to prevent contents of the container from spilling is known. For example, Patent Document 1 describes an absorbent-containing container that contains an absorbent which absorbs a gas, the container including: a lid body; and a bottomed cylindrical container body having an opening in an upper surface closed by the lid body, wherein the lid body is fitted into the opening in a state where an outer peripheral portion of the lid body is bent upward and brought into contact with an inner peripheral layer of the container body, an upper end portion of the container body is bent from above the lid body toward the lid body side and grips the outer peripheral portion of the lid body, and a paper layer is used for at least one of the inner peripheral layer of the container body or an inner layer of the lid body. According to the absorbent-containing container described in Patent Document 1, it is possible to realize a low-cost absorbent-containing container that can contain an absorbent which is expanded by reacting with a gas while ensuring air permeability between the container and the outside, and that can contain an absorbent having a small diameter or an absorbent having a decreasing diameter without leakage.Citation ListPatent Document

[0003] Patent Document 1: WO 2014 / 203770Summary of InventionTechnical Problem

[0004] When the contents contained in the container contain metal, the contents may rust due to moisture or the like in the air that has entered the container. In this case, if the lid of the container includes a member having water permeability such as paper, a sintered body, or a nonwoven fabric, rust may seep out to the member portion to cause rust stain.

[0005] Further, there is a problem that a powdery or granular material may leak from the container depending on the material for the lid of the container or the type of the powdery or granular material to be contained in the container.

[0006] A problem to be solved by the present invention is to provide a container for a powdery or granular material and a package, which are capable of suppressing rust stain and leakage of a powdery or granular material.Solution to Problem

[0007] The present inventor has found that the above problem can be solved by disposing a lid body between a step and a crimping portion and providing the lid body with at least a paper layer and a resin layer, and has completed the invention.

[0008] That is, the present invention is as follows. <1> A container for a powdery or granular material, including: a container body portion that contains a powdery or granular material; and a lid body, wherein the container body portion includes: a bottom portion; and a peripheral wall portion rising from an outer edge of the bottom portion, the peripheral wall portion includes: a first inner peripheral wall portion rising from the bottom portion on an inner peripheral side of the peripheral wall portion and having a smaller diameter than that of the lid body; a second inner peripheral wall portion having a larger diameter than that of the first inner peripheral wall portion and connected to the first inner peripheral wall portion with a step; and a crimping portion that is disposed at an end portion on a side opposite to the bottom portion and is bent toward an inner peripheral side of the container body portion, and the lid is disposed between the step and the crimping portion and includes at least a paper layer and a resin layer. <2> The container for a powdery or granular material according to <1>, wherein the container body portion and / or the resin layer has no air permeability. <3> The container for a powdery or granular material according to <1> or <2>, wherein a gap is provided between at least the resin layer of the lid body and the container body portion, the gap allowing ventilation between an inside and an outside of the container for a powdery or granular material. <4> The container for a powdery or granular material according to any one of <1> to <3>, wherein the resin layer of the lid body does not have air permeability, and, in the lid body, an area of a surface of the resin layer facing the bottom portion of the container body portion is smaller than an area of a surface of the paper layer facing the bottom portion of the container body portion. <5> The container for a powdery or granular material according to any one of <1> to <4>, wherein the lid body is formed by stacking a paper layer, a resin layer, and a paper layer in this order from a bottom portion side of the container body portion. <6> The container for a powdery or granular material according to any one of <1> to <5>, wherein a thickness of the paper layer of the lid body is larger than that of the resin layer of the lid body. <7> The container for a powdery or granular material according to any one of <1> to <6>, wherein the lid body has a flat plate shape. <8> The container for a powdery or granular material according to any one of <1> to <7>, wherein the peripheral wall portion has a diameter increasing toward a side opposite to the bottom portion. <9> The container for a powdery or granular material according to any one of <1> to <8>, wherein, in a cross-sectional view, an extension line obtained by extending, in a radial direction, an intersection point at which diagonal lines connecting an inner-diameter-side end point of the step and an outermost point of an inner diameter of the bottom portion intersect is located on the bottom portion side from a center of the first inner peripheral wall portion in an axial direction. <10> The container for a powdery or granular material according to any one of <1> to <9>, wherein the powdery or granular material is a desiccant and / or an oxygen absorbent. <11> A package including: the container for a powdery or granular material according to any one of <1> to <10>; and a powdery or granular material contained therein. Advantageous Effects of Invention

[0009] According to the present invention, it is possible to provide a container for a powdery or granular material and a package, which suppress rust stain and leakage of a powdery or granular material. The container for a powdery or granular material of the present invention is also excellent in air permeability, and is particularly useful when the powdery or granular material is a desiccant or an oxygen absorbent.Brief Description of Drawings

[0010] FIG. 1 is a cross-sectional view for illustrating a configuration example of a container for a powdery or granular material according to the present embodiment. FIG. 2 is a partially enlarged view for illustrating the configuration example of the container for a powdery or granular material according to the present embodiment. FIG. 3 is a partially enlarged view for illustrating the configuration example of the container for a powdery or granular material according to the present embodiment. FIG. 4 is a partially enlarged view for illustrating the configuration example of the container for a powdery or granular material according to the present embodiment. FIG. 5 is a partially enlarged view for illustrating the configuration example of the container for a powdery or granular material according to the present embodiment. FIG. 6 is a cross-sectional view for illustrating a configuration example of a lid body applicable to the container for a powdery or granular material according to the present embodiment. FIG. 7 is a view showing a modification of the lid body applicable to the container for a powdery or granular material of the present invention. Description of Embodiments

[0011] Hereinafter, a preferred embodiment for carrying out the present invention will be described with reference to the drawings. The following embodiment is not intended to limit the invention according to each claim, and not all combinations of features described in the embodiment are necessarily essential to the solution of the invention.

[0012] First, a configuration example of a container 100 for a powdery or granular material according to the present embodiment will be described with reference to FIGS. 1 to 5. Here, FIG. 1 is a cross-sectional view for illustrating a configuration example of the container for a powdery or granular material according to the present embodiment. FIGS. 2 to 5 are partially enlarged views for illustrating the configuration example of the container for a powdery or granular material according to the present embodiment.[Container 100 for Powdery or Granular Material]

[0013] As shown in FIG. 1, a container 100 for a powdery or granular material according to the present embodiment includes: a container body portion 10 that contains a powdery or granular material; and a lid body 50. The container body portion 10 includes: a bottom portion 20; and a peripheral wall portion 30 rising from an outer edge of the bottom portion 20. The peripheral wall portion 30 includes: a first inner peripheral wall portion 31 rising from the bottom portion 20 on an inner peripheral side of the peripheral wall portion 30 and having a smaller diameter than that of the lid body 50; a second inner peripheral wall portion 35 having a larger diameter than that of the first inner peripheral wall portion 31 and connected to the first inner peripheral wall portion 31 with a step 33; and a crimping portion 37 that is disposed at an end portion on a side opposite to the bottom portion 20 and is bent toward an inner peripheral side of the container body portion 10. Further, the lid body 50 is disposed between the step 33 and the crimping portion 37, and includes at least a paper layer P and a resin layer R.

[0014] The container body portion 10 is a body portion of a container that contains a powdery or granular material. The container body portion 10 is not particularly limited as long as it can contain the powdery or granular material, but can have no air permeability. In the present specification, the term "having no air permeability" means that an amount of air passing through a test piece as measured in accordance with JIS L 1096:2010 is equal to or less than a measuring limit, or that an oxygen permeability as measured under conditions of 25°C, 90% RH for N 2 , and 60% RH for O 2 using an oxygen permeability measuring apparatus (for example, trade name "OX-TRAN2 / 22L" available from MOCON Inc.) is 200 mL / (m 2< ·day·atm) or less. Therefore, the container body portion 10 may not have a hole, a slit, or the like through which air passes.

[0015] As shown in FIG. 1, the container body portion 10 is configured to include the bottom portion 20 and the peripheral wall portion 30 rising from the outer edge of the bottom portion 20.

[0016] A shape of the bottom portion 20 is not particularly limited, but, as shown in FIG. 1, the bottom portion 20 according to the present embodiment has a circular shape in plan view and is disposed concentrically with the container 100 for a powdery or granular material. With such a configuration, the container 100 for a powdery or granular material is excellent in stability when placed with the bottom portion 20 as a base. The bottom portion 20 may have a leg portion or the like so as to have more excellent stability.

[0017] The peripheral wall portion 30 is configured to rise from the outer edge of the bottom portion 20. As shown in FIG. 1, the bottom portion 20 and the peripheral wall portion 30 may be connected to each other with a curved line. With such a configuration, the container body portion can further withstand a pressing force generated when the crimping portion 37 is crimped, as described later. In a case where the bottom portion 20 and the peripheral wall portion 30 are connected to each other with a curved line, a portion of the curved line inside the container 100 for a powdery or granular material, having a maximum angle, is defined as an outermost point 20A of an inner diameter of the bottom portion 20 described later.

[0018] As shown in FIG. 1, the peripheral wall portion 30 according to the present embodiment is configured to have a diameter increasing toward the side opposite to the bottom portion 20. With such a configuration, there is an advantage that, when the container 100 for a powdery or granular material is manufactured using a molding die, the container 100 for a powdery or granular material is easily removed from the molding die. Further, there are advantages that the powdery or granular material can be easily put into the container 100 for a powdery or granular material and that the container for a powdery or granular material is excellent in stability. Further, there are advantages that, for example, when a powdery or granular material is put into a plurality of the containers 100 for a powdery or granular material using a tray for moving the plurality of containers 100 for a powdery or granular material, the plurality of containers 100 for a powdery or granular material are easily installed on the tray and can be stably moved, and thus are excellent in productivity. In addition, there is an advantage that the container 100 for a powdery or granular material or the container 100 for a powdery or granular material filled with a powdery or granular material is also excellent in stability during transportation.

[0019] The peripheral wall portion 30 is configured to include the first inner peripheral wall portion 31 having a smaller diameter than that of the lid body 50, the second inner peripheral wall portion 35 having a larger diameter than that of the first inner peripheral wall portion 31, and the crimping portion 37 that is disposed at the end portion on the side opposite to the bottom portion 20 and is bent toward the inner peripheral side of the container body portion 10.

[0020] The first inner peripheral wall portion 31 is configured to rise from the outermost point 20A of the bottom portion 20 on the inner peripheral side of the peripheral wall portion 30, and to have a smaller diameter than the diameter of the lid body 50. With such a configuration, the lid body 50 can be prevented from falling into the container body portion 10.

[0021] The second inner peripheral wall portion 35 is configured to be connected to the first inner peripheral wall portion 31 with the step 33, and to have a larger diameter than the diameter of the first inner peripheral wall portion 31. The second inner peripheral wall portion 35 is configured to have a diameter equal to or larger than that of the lid body 50. With such a configuration, the lid body 50 can be stably held between the step 33, the second inner peripheral wall portion 35, and the crimping portion 37.

[0022] The step 33 is a shoulder-shaped portion connecting the first inner peripheral wall portion 31 and the second inner peripheral wall portion 35. The step 33 is configured to have a predetermined length so that the lid body 50 does not fall into the container body portion 10. As shown in FIG. 1, the step 33 according to the present embodiment is disposed so as to be substantially parallel to the bottom portion 20. With such a configuration, there are advantages that, when the lid body 50 has a flat plate shape, the lid body 50 is easily disposed on the step 33, and the container 100 for a powdery or granular material is easily manufactured. In addition, there are advantages that the adhesion with the lid body 50 is improved, and that the leakage of the powdery or granular material can be effectively prevented. In a case where the container body portion 10 and / or the lid body 50 has no air permeability, a gap G (see FIGS. 2 to 5) that allows smoother ventilation between an inside and an outside of the container 100 for a powdery or granular material can be provided between at least the resin layer R of the lid body 50 and the container body portion 10 within a size range where the leakage of the powdery or granular material can be suppressed, as described later.

[0023] An inner diameter of the second inner peripheral wall portion 35 can be configured to be the same as an outer diameter of the bottom portion 20. With such a configuration, a container having excellent handleability can be molded.

[0024] The crimping portion 37 is a portion that is disposed at the end portion on the side opposite to the bottom portion 20 and is bent toward the inner peripheral side of the container body portion 10. More specifically, the crimping portion 37 is a portion that is heated by a heating jig (not shown) for bending the end portion of the peripheral wall portion 30 on the side opposite to the bottom portion 20 and is bent toward the inner peripheral side of the container body portion 10. As shown in FIG. 1, in a vertical cross-sectional view in a normal use direction of the container 100 for a powdery or granular material, the crimping portion 37 according to the present embodiment is configured to have the same thickness as that of the second inner peripheral wall portion 35, but the thickness of the crimping portion 37 is not particularly limited, and may be the same as, smaller than, or larger than the thickness of the second inner peripheral wall portion 35.

[0025] As shown in FIG. 1, in the present embodiment, the crimping portion 37 is bent so that a bent end portion 37A of the crimping portion 37 is perpendicular to the lid body 50. With such a configuration, there are advantages that the lid body 50 is easily pressed by the end portion 37A of the crimping portion 37, and is not easily detached from the container 100 for a powdery or granular material. However, an angle at which the crimping portion 37 is bent is not particularly limited, and can be changed as appropriate.

[0026] As shown in FIG. 1, in a vertical cross-sectional view in the normal use direction of the container 100 for a powdery or granular material, an extension line E obtained by extending, in a radial direction, an intersection point at which diagonal lines D connecting an inner-diameter-side end point 33A of the step 33 and the outermost point 20A of the inner diameter of the bottom portion 20 intersect can be configured to be located on the bottom portion 20 side from a center of the first inner peripheral wall portion 31 in an axial (vertical) direction. With such a configuration, when the crimping portion 37 is crimped, wrinkles are less likely to be formed in the crimping portion 37, and twisting can be suppressed. Thus, the container 100 for a powdery or granular material has excellent appearance.

[0027] A total length of the second inner peripheral wall portion 35 and the crimping portion 37, which indicates a vertical direction in a direction at the time of normal manufacturing, is not particularly limited, but can be set to 1 / 7 or more of a length of the peripheral wall portion 30, and may be 29 / 200 or more, 59 / 400 or more, or 3 / 20 or more. With such a configuration, when the crimping portion 37 is crimped, wrinkles are less likely to be formed in the crimping portion 37, and twisting can be suppressed. Thus, the container 100 for a powdery or granular material has excellent appearance. The total length of the second inner peripheral wall portion 35 and the crimping portion 37 does not refer to a total of the length of the second inner peripheral wall portion 35 and the length of the crimping portion 37 when the bent crimping portion is extended, but refers to a total of lengths occupied by the second inner peripheral wall portion 35 and the crimping portion 37 in the length of the peripheral wall portion 30 in the vertical direction in the direction at the time of normal manufacturing, that is, a longitudinal direction on a paper surface of FIG. 1.

[0028] The total length of the second inner peripheral wall portion 35 and the crimping portion 37 is not particularly limited, but can be set to 1 / 8 or more of the outer diameter of the bottom portion 20, and may be 1 / 7 or more, 1 / 6 or more, or 1 / 5 or more. With such a configuration, when the crimping portion 37 is crimped, wrinkles are less likely to be formed in the crimping portion 37, and twisting can be suppressed. Thus, the container 100 for a powdery or granular material has excellent appearance.

[0029] The total length of the second inner peripheral wall portion 35 and the crimping portion 37 is not particularly limited, but can be set to 3 mm or more and 6 mm or less. The thicknesses of the second inner peripheral wall portion 35 and the crimping portion 37 are not particularly limited, but can be set to 0.1 mm or more and 0.8 mm or less.

[0030] A material for the container body portion 10 is not particularly limited as long as the container body portion can contain the powdery or granular material, but can have no air permeability. Examples of the material having no air permeability include metals, alloys, glass, polyolefin resins, polyester resins, polyamide resins, polyvinyl alcohol resins, ethylene-vinyl alcohol copolymer resins, and chlorine-based resins.

[0031] Examples of the polyolefin resin include various polyethylenes such as high-density polyethylene, medium-density polyethylene, low-density polyethylene, linear low-density polyethylene, ultralow-density polyethylene, and polyethylene produced by a metallocene catalyst, polystyrene, polymethylpentene, and polypropylenes such as propylene homopolymer, propylene-ethylene block copolymer, and propylene-ethylene random copolymer, and these can be used alone or in combination. In addition, an ethylene-vinyl acetate copolymer, an ethylene-methyl acrylate copolymer, an ethylene-ethyl acrylate copolymer, an ethylene-acrylic acid copolymer, an ethylene-methacrylic acid copolymer, an ethylene-methyl methacrylate copolymer, a thermoplastic elastomer, or the like may be added to these polyolefin resins, if necessary.

[0032] Examples of the polyester resin include aromatic polyesters and aliphatic polyesters. Examples of the polyamide resin include aromatic polyamides and aliphatic polyamides. Specific examples of these include polymetaxylylene adipamide (for example, MX nylon, available from Mitsubishi Gas Chemical Company, Inc.), nylon-6, nylon-6,6, and nylon-6,12.

[0033] Examples of the polyvinyl alcohol resin include resins obtained by saponifying a vinyl ester polymer or a copolymer of a vinyl ester and another monomer using an alkali catalyst. A degree of saponification of a vinyl ester component of the polyvinyl alcohol resin is not particularly limited, but is preferably 90% or more, more preferably 95% or more, and still more preferably 99% or more. The polyvinyl alcohol resin may be a blend (mixture) of two or more polyvinyl alcohol resins having different degrees of saponification. Examples of the ethylene-vinyl alcohol copolymer resin include resins obtained by saponifying ethylene-vinyl ester copolymers. Among these, an ethylene-vinyl alcohol copolymer having an ethylene content of from 5 to 60 mol% and a degree of saponification of 85% or more is preferred. The ethylene content of the ethylene-vinyl alcohol copolymer resin is not particularly limited, but a lower limit thereof is preferably 20 mol% or higher, and more preferably 25 mol% or higher. An upper limit of the ethylene content is preferably 55 mol% or lower, and more preferably 50 mol% or lower. Further, the degree of saponification of the vinyl ester component is also not particularly limited, but is preferably 85% or more, more preferably 90% or more, and still more preferably 99% or more.

[0034] Examples of the chlorine-based resin include polyvinylidene chloride, a block copolymer and a graft copolymer mainly made of vinyl chloride, and, further, a polymer blend mainly made of a vinyl chloride resin. Examples of a comonomer to be copolymerized with vinyl chloride include vinyl acetate, vinylidene chloride, acrylic acid, methacrylic acid and esters thereof, acrylonitriles, olefins such as ethylene and propylene, and maleic acid and anhydrides thereof.

[0035] As shown in FIG. 1, the lid body 50 is a portion serving as a lid of the container 100 for a powdery or granular material. That is, the lid body 50 closes an opening of the container 100 for a powdery or granular material (container body portion 10) so that the powdery or granular material contained in the container 100 for a powdery or granular material (container body portion 10) does not spill out, and is disposed between the step 33 and the crimping portion 37.

[0036] The lid body 50 according to the present embodiment is not particularly limited, but is configured as a flat plate-shaped circular member. With such a configuration, there are advantages that the lid body 50 can be easily disposed on the step 33 described later, and that the container 100 for a powdery or granular material is easily manufactured. Further, there are also advantages that the lid body is easily pressed by the crimping portion 37 described later and is not easily detached from the container 100 for a powdery or granular material.

[0037] The lid body 50 is configured to have at least the paper layer P and the resin layer R. Even when rust is generated on the powdery or granular material due to moisture or the like in the air that has entered the container 100 for a powdery or granular material, the lid body 50 has the resin layer R, and thus the rust can be prevented from spreading to the lid body 50, and, as a result, rust stain can be suppressed. In addition, since resin is generally superior in strength to paper, the lid body 50 having the resin layer R has an advantage that the strength of the lid body 50 is improved. In addition, since paper is generally superior in flexibility to resin, the lid body 50 having the paper layer P has advantages that the lid body 50 is more firmly crimped between the step 33 and the crimping portion 37, and thus that falling of the lid body 50 into the container body portion 10 can be more suppressed and that the powdery or granular material is less likely to leak out of the container.

[0038] Typically, paper such as cardboard having air permeability or resin having ventilation holes has been adopted as the material for the lid body of the container for a powdery or granular material. However, there is a problem that the type and particle size of the powdery or granular material to be contained in the container for a powdery or granular material and a filling rate of the powdery or granular material into the container for a powdery or granular material are limited by the material for the lid body to be adopted. The container 100 for a powdery or granular material according to the present invention includes the lid body 50 configured to include at least the paper layer P and the resin layer R, and thus has an effect of reducing the limitation on the type and particle size of the powdery or granular material to be contained in the container 100 for a powdery or granular material and the filling rate of the powdery or granular material into the container 100 for a powdery or granular material while suppressing leakage of the powdery or granular material, and further suppressing rust stain.

[0039] The paper layer P is not particularly limited as long as it is made of paper. The paper constituting the paper layer P is not particularly limited, but, for example, a paperboard can be used. A basis weight of the paper layer P is not particularly limited, but can be 100 g / m 2< or more and 600 g / m 2< or less. In a case where the lid body 50 has a plurality of paper layers P, the basis weight of each of the plurality of paper layers P can be set to the above range.

[0040] The resin layer R is not particularly limited as long as it is formed of a resin and can block water, but a resin layer having no air permeability can be used. As the resin constituting the resin layer R, for example, the resin exemplified as the material having no air permeability among the materials for the container body portion 10 can be used.

[0041] The lid body 50 according to the present embodiment has the paper layer P and the resin layer R in this order from the bottom portion 20 side of the container body portion 10, but the order and the layer configuration are not particularly limited as long as the lid body includes at least the paper layer P and the resin layer R, the container 100 for a powdery or granular material functions as a storage container for a powdery or granular material, and rust stain can be suppressed. As shown in FIGS. 4 and 5, the lid body 50 may have one resin layer R and one paper layer P in this order from the bottom portion 20 side of the container body portion 10. The paper layer P of the lid body 50 may be two or more layers, three or more layers, four or more layers, or five or more layers. Further, the resin layer R of the lid body 50 may also be two or more layers, three or more layers, four or more layers, or five or more layers. Furthermore, when the lid body 50 has a plurality of paper layers P and a plurality of resin layers R, the order from the bottom portion 20 side of the container body portion 10 is also not particularly limited as long as the container 100 for a powdery or granular material functions as a storage container for a powdery or granular material and rust stain can be suppressed. When the lid body 50 has a plurality of resin layers R, a thickness of the resin layer R means a total thickness of the plurality of resin layers R. Similarly, when the lid body 50 has a plurality of paper layers P, a thickness of the paper layer P means a total thickness of the plurality of paper layers P.

[0042] A method of stacking the paper layer P and the resin layer R in the lid body 50 is not particularly limited, and the layers may be stacked by placing another layer on the layer on the bottom portion 20 side and simply superposing the layers, or may be stacked by bonding the layers using an adhesive or the like. As the adhesive, an adhesive typically used for adhesion between paper and a resin can be used. Even if the lid body 50 is formed by simply superposing the paper layer P and the resin layer R to stack the layers, the effects of the present invention are achieved.

[0043] When the container body portion 10 and the resin layer R of the lid body 50 have no air permeability, a gap that allows smoother ventilation between the inside and the outside of the container 100 for a powdery or granular material may be provided between at least the resin layer R of the lid body 50 and the container body portion 10 (the peripheral wall portion 30) depending on the type of the powdery or granular material to be contained in the container body portion 10. With such a configuration, there are advantages that the type of the resin constituting the resin layer R is less likely to be limited and that various resins can be used. In addition, there is an advantage that the type of the powdery or granular material to be contained in the container body portion 10 is less likely to be limited.

[0044] A method of forming the gap that allows smoother ventilation between the inside and the outside of the container 100 for a powdery or granular material between at least the resin layer R of the lid body 50 and the container body portion 10 (peripheral wall portion 30) is not particularly limited. A slight gap is formed between the lid body 50 and the container body portion 10 (peripheral wall portion 30) due to a processing error or the like occurring in a manufacturing stage of the container 100 for a powdery or granular material, and the gap allows ventilation between the inside and the outside of the container 100 for a powdery or granular material. The following method is exemplified as a method of allowing smoother ventilation between the inside and the outside of the container 100 for a powdery or granular material more positively and reliably.

[0045] As described above, when the container body portion 10 and the resin layer R of the lid body 50 have no air permeability, and the lid body 50 has the paper layer P and the resin layer R in this order from the bottom portion 20 side of the container body portion 10, and the resin layer R has no air permeability, for example, as shown in FIG. 2, it is possible to utilize an inclination of the peripheral wall portion 30 (second inner peripheral wall portion 35) configured to have a diameter increasing toward the side opposite to the bottom portion 20 (in other words, to provide the peripheral wall portion 30 rising from the outer edge of the bottom portion 20 at an angle exceeding 90° with respect to the bottom portion 20), to set the bending angle of the crimping portion 37 to less than 180°, and to provide the gaps G and G between at least the resin layer R of the lid body 50 and the second inner peripheral wall portion 35 and the end portion 37A of the crimping portion 37. In this case, since the paper layer P of the lid body 50 and the step 33 are configured to be in close contact with each other, the leakage of the powdery or granular material can be suppressed, and rust stain can be suppressed by the resin layer R on the paper layer P. The gap G provided between the resin layer R and the end portion 37A of the crimping portion 37 can be formed by, for example, adjusting a degree of crimping of the crimping portion 37 to the resin layer R.

[0046] For example, as shown in FIG. 3, in the lid body 50, it is possible to make an area of a surface of the resin layer R facing the bottom portion 20 of the container body portion 10 (that is, a surface of the resin layer R on the step 33) smaller than an area of a surface of the paper layer P facing the bottom portion 20 of the container body portion 10 (that is, a surface of the paper layer P on the resin layer R), and thus to provide the gaps G and G between at least the resin layer R of the lid body 50 and the second inner peripheral wall portion 35 and the end portion 37A of the crimping portion 37. A difference in area between the resin layer R and the paper layer P is not particularly limited as long as it is in a range that allows smoother ventilation between the inside and the outside of the container 100 for a powdery or granular material. In order to make the area of the resin layer R smaller than the area of the paper layer P, a notch may be provided in a part of the resin layer R to allow smoother ventilation between the inside and the outside of the container 100 for a powdery or granular material. Note that not only the resin layer R but also the paper layer P may be configured to have a notch as long as the leakage of the powdery or granular material contained in the container body portion 10 can be suppressed. That is, the lid body 50 having the resin layer R and the paper layer P may be formed to be smaller than the inner diameter of the second inner peripheral wall portion 35. In this case, the area of the surface of the resin layer R with respect to the bottom portion 20 of the container body portion 10 and the area of the surface of the paper layer P with respect to the bottom portion 20 of the container body portion 10 may be the same or different.

[0047] As described above, in a case where the container body portion 10 and the resin layer R of the lid body 50 have no air permeability, and the lid body 50 has the resin layer R and the paper layer P in this order from the bottom portion 20 side of the container body portion 10, and the resin layer R has no air permeability, for example, as shown in FIG. 4, in a vertical cross-sectional view in the normal use direction of the container 100 for a powdery or granular material, the thickness of the second inner peripheral wall portion 35 can be increased toward the crimping portion 37 side, and the gap G can be provided between at least the resin layer R of the lid body 50 and the second inner peripheral wall portion 35. In order to achieve smoother ventilation between the inside and the outside of the container 100 for a powdery or granular material, a very small gap G can be provided between the resin layer R and the step 33. The gap G provided between the resin layer R and the step 33 can be formed by, for example, adjusting the degree of crimping of the crimping portion 37 to the paper layer P including the resin layer R on the bottom portion 20 side, or providing a groove (not shown) in the step 33. The thickness of the crimping portion 37 may be the same as a maximum thickness of the second inner peripheral wall portion 35, and is not particularly limited.

[0048] For example, as shown in FIG. 5, as in the case described above, in the lid body 50, it is possible to make an area of a surface of the resin layer R facing the bottom portion 20 of the container body portion 10 (that is, a surface of the resin layer R on the step 33) smaller than an area of a surface of the paper layer P facing the bottom portion 20 of the container body portion 10 (that is, a surface of the paper layer P on the resin layer R), and thus to provide the gap G between at least the resin layer R of the lid body 50 and the second inner peripheral wall portion 35. As in the case described above, in order to achieve smoother the ventilation between the inside and the outside of the container 100 for a powdery or granular material, a very small gap G can be provided between the resin layer R and the step 33. As in the case described above, the difference in area between the resin layer R and the paper layer P is not particularly limited as long as it is in a range that allows smoother ventilation between the inside and the outside of the container 100 for a powdery or granular material. In order to make the area of the resin layer R smaller than the area of the paper layer P, a notch may be provided in a part of the resin layer R to allow smoother ventilation between the inside and the outside of the container 100 for a powdery or granular material. Not only the resin layer R but also the paper layer P may be configured to have a notch as long as the leakage of the powdery or granular material contained in the container body portion 10 can be suppressed. That is, the lid body 50 having the resin layer R and the paper layer P may be formed to be smaller than the inner diameter of the second inner peripheral wall portion 35. In this case, the area of the surface of the resin layer R with respect to the bottom portion 20 of the container body portion 10 and the area of the surface of the paper layer P with respect to the bottom portion 20 of the container body portion 10 may be the same or different.

[0049] A size of the gap that allows smoother ventilation between the inside and the outside of the container 100 for a powdery or granular material is not particularly limited as long as the powdery or granular material does not spill out, the container 100 for a powdery or granular material functions as a storage container for a powdery or granular material, and the function of the powdery or granular material is not impaired, and is changed as appropriate according to the size, type, and the like of the powdery or granular material. The size of the gap is not particularly limited, but can be, for example, 10 µm or more or 20 µm or more, and 100 µm or less or 80 µm or less. Note that the gap provided between the resin layer R and the step 33 is preferably small from the viewpoint of rust stain suppression.

[0050] The powdery or granular material to be contained in the container body portion 10 may be a desiccant and / or an oxygen absorbent, and as the desiccant and the oxygen absorbent, typically known materials can be used, and the materials may be expanded by reacting with a gas. The desiccant is not particularly limited as long as it absorbs moisture, and examples thereof include silica gel, quicklime (calcium oxide), calcium chloride, diphosphorus pentoxide, aluminum oxide, magnesium oxide, and barium oxide. The oxygen absorbent is not particularly limited as long as it absorbs oxygen, and examples thereof include metal powders such as iron powder, reducing inorganic substances such as iron compounds, polyhydric phenols, polyhydric alcohols, unsaturated fatty acid compounds, reducing organic substances such as ascorbic acid and salts thereof, resin compositions containing a resin and / or oligomer having a carbon-carbon unsaturated bond and a transition metal catalyst, and oxygen absorbent compositions containing a metal complex or the like as a main agent of an oxygen absorption reaction, and may be an iron-based deoxidizer containing iron powder as a main agent. Only one of the desiccant and the oxygen absorbent may be used, or both the desiccant and the oxygen absorbent may be used. One type of each of the desiccant and the oxygen absorbent may be used alone, or two or more types thereof may be used in combination.

[0051] The configuration example of the container 100 for a powdery or granular material according to the present embodiment has been described above. Next, a container 110 for a powdery or granular material in which a lid body 50 is formed by stacking a paper layer P, a resin layer R, and a paper layer P in this order from a bottom portion 20 side of a container body portion 10 will be described with reference to FIG. 6. Here, FIG. 6 is a cross-sectional view for illustrating a lid body applicable to the container for a powdery or granular material according to the present embodiment. The same or similar components as / to those of the above-described embodiment are denoted by the same reference numerals, and the description thereof may be omitted.[Container 110 for Powdery or Granular Material]

[0052] As shown in FIG. 6, a container 110 for a powdery or granular material according to the present embodiment includes: a container body portion 10 that contains a powdery or granular material; and a lid body 50. The container body portion 10 includes: a bottom portion 20; and a peripheral wall portion 30 rising from an outer edge of the bottom portion 20. The peripheral wall portion 30 includes: a first inner peripheral wall portion 31 rising from the bottom portion 20 on an inner peripheral side of the peripheral wall portion 30 and having a smaller diameter than that of the lid body 50; a second inner peripheral wall portion 35 having a larger diameter than that of the first inner peripheral wall portion 31 and connected to the first inner peripheral wall portion 31 with a step 33; and a crimping portion 37 that is disposed at an end portion on a side opposite to the bottom portion 20 and is bent toward an inner peripheral side of the container body portion 10. Further, the lid body 50 is disposed between the step 33 the crimping portion 37, and the lid body 50 can be formed by stacking a paper layer P, a resin layer R, and a paper layer P in this order from the bottom portion 20 side of the container body portion 10.

[0053] When the lid body 50 is formed by stacking the paper layer P, the resin layer R, and the paper layer P in this order from the bottom portion 20 side of the container body portion 10, the layers of the lid body 50 in contact with the container body portion 10 are the paper layers P on both surfaces when the crimping portion 37 is crimped. Thus, there are advantages that the lid body 50 is more firmly crimped between the step 33 and the crimping portion 37, that falling of the lid body 50 into the container body portion 10 can be more suppressed, and that the powdery or granular material is less likely to leak out of the container. Further, as described above, even in a case where the resin layer R has no air permeability and a slight gap between the lid body 50 and the container body portion 10 (peripheral wall portion 30) formed due to a processing error or the like occurring in the manufacturing stage of the container 100 for a powdery or granular material allows ventilation between the inside and the outside of the container 100 for a powdery or granular material, the layers of the lid body 50 in contact with the container body portion 10 are the paper layers P on both surfaces, and thus there is also an advantage that ventilation between the inside and the outside of the container 100 for a powdery or granular material can be further improved.

[0054] In the case of the container 110 for a powdery or granular material having the lid body 50 formed by stacking the paper layer P, the resin layer R, and the paper layer P, the gap (not shown) can be provided by applying the method exemplified as the method of more reliably allowing smoother ventilation between the inside and the outside of the container 100 for a powdery or granular material as described above.

[0055] In the container 100 (110) for a powdery or granular material according to the present embodiment, the lid body 50 is disposed between the step 33 and the crimping portion 37 and includes at least the resin layer R and the paper layer P, and thus, even when rust is generated on the powdery or granular material due to moisture or the like in the air that has entered the container 100 for a powdery or granular material, it is possible to prevent the rust from spreading to the lid body 50, and, as a result, it is possible to exhibit an excellent effect of suppressing rust stain. Further, since the lid body 50 has the resin layer R, an excellent effect of further improving strength of the lid body 50 is exhibited. Further, in a case where the lid body 50 has the paper layer P and the paper layer P is disposed in contact with the end portion 37A of the crimping portion 37 and the step 33, the lid body 50 is more firmly crimped between the step 33 and the crimping portion 37, and thus excellent effects are exhibited in that falling of the lid body 50 into the container body portion 10 can be further suppressed and that the powdery or granular material can be further prevented from leaking out of the container.

[0056] The configuration example of the container 110 for a powdery or granular material according to the present embodiment has been described above. Next, the lid body 50 applicable to the container 100 (110) for a powdery or granular material of the present invention will be described with reference to FIG. 7. Here, FIG. 7 is a view illustrating a modification of the lid body applicable to the container for a powdery or granular material of the present invention. The same or similar components as / to those of the above-described embodiment are denoted by the same reference numerals, and the description thereof may be omitted.

[0057] As shown in FIG. 7, the thickness of the paper layer P of the lid body 50 can be made larger than the thickness of the resin layer R of the lid body 50. With such a configuration, especially, in a case where the paper layer P is disposed in contact with the end portion 37A of the crimping portion 37 and the step 33, the lid body 50 is more firmly crimped between the step 33 and the crimping portion 37, and thus there are advantages that falling of the lid body 50 into the container body portion 10 can be further suppressed and that the powdery or granular material is further prevented from leaking out of the container. In addition, there are advantages that rust is less likely to seep into the paper layer P, and, as a result, that rust stain can be further suppressed.

[0058] As shown in FIG. 7(a), the lid body 50 can be configured to have a resin layer R and a paper layer P in this order from the bottom portion 20 side of the container body portion 10, and configured such that the thickness of the paper layer P of the lid body 50 is larger than that of the resin layer R of the lid body 50. With such a configuration, the lid body 50 is more firmly crimped to the end portion 37A of the crimping portion 37, and thus there are advantages that falling of the lid body 50 into the container body portion 10 can be further suppressed and that the powdery or granular material is less likely to leak out of the container. In addition, there are advantages that rust is less likely to seep into the paper layer P, and, as a result, that rust stain can be further suppressed.

[0059] As shown in FIG. 7(b), the lid body 50 can be configured to have a paper layer P, a resin layer R, and a paper layer P in this order from the bottom portion 20 side of the container body portion 10, and configured such that the thickness of each of the paper layers P of the lid body 50 or the total thickness of the paper layers P is larger than that of the resin layer R of the lid body 50. With such a configuration, as described above, the lid body 50 is more firmly crimped between the step 33 and the crimping portion 37, and thus there are advantages that falling of the lid body 50 into the container body portion 10 can be further suppressed and that the powdery or granular material is less likely to leak out of the container. In addition, there are advantages that rust is less likely to seep into the paper layer P, and, as a result, that rust stain can be further suppressed. Note that one of the paper layers P may be configured to be thicker than the resin layer R.

[0060] As shown in FIG. 7(c), the lid body 50 can be configured to have a paper layer P and a resin layer R in this order from the bottom portion 20 side of the container body portion 10, and configured such that the thickness of the paper layer P of the lid body 50 is larger than that of the resin layer R of the lid body 50. With such a configuration, as described above, the lid body 50 is more firmly crimped between the step 33 and the crimping portion 37, and thus there are advantages that falling of the lid body 50 into the container body portion 10 can be further suppressed and that the powdery or granular material is less likely to leak out of the container. In addition, there are advantages that rust is less likely to seep into the paper layer P, and, as a result, that rust stain can be further suppressed.

[0061] Although the preferred embodiment of the present invention has been described above, the technical scope of the present invention is not limited to the scope described in the above embodiment. Various changes or improvements can be made to the above embodiment.

[0062] For example, in the above-described embodiment, the bottom portion 20 and the peripheral wall portion 30 of the container 100 or 110 for a powdery or granular material are connected to each other with a curved line, but may not be connected to each other with a curved line.

[0063] Further, for example, in the above-described embodiment, the peripheral wall portion 30 is configured to have a diameter increasing toward the side opposite to the bottom portion 20, but the diameter of the peripheral wall portion 30 may be constant.

[0064] Further, for example, in the above-described embodiment, the container 100 or 110 for a powdery or granular material is configured to have a cylindrical shape from the viewpoint of preventing the lid body 50 from falling off, but may be configured to have a hollow polygonal shape such as a hollow quadrangular shape as long as the lid body 50 does not fall off.Examples[Evaluation]

[0065] After producing containers for a powdery or granular material (packages) of Examples and Comparative Examples containing an iron-based deoxidizer, the following evaluations were performed. The results are shown in Table 1.<Leakage of Powdery or Granular Material>

[0066] It was confirmed that a powdery or granular material was not adhered to the outside of the container for a powdery or granular material, ten containers were placed in a container such as a plastic bag, shaken thoroughly from two to three times, and then taken out from the plastic bag or the like, and whether or not the powdery or granular material was adhered to the outside of the containers was visually evaluated. A: No powdery or granular material adhered to any of the containers B: Powdery or granular material adhered to one or more containers <Rust Stain>

[0067] The container for a powdery or granular material was stored at 25°C and 90% RH for 3 weeks, and whether or not the lid surface was colored was visually evaluated. A: Colored B: Not colored <Oxygen Absorption>

[0068] The container for a powdery or granular material was placed in an aluminum bag together with 1,500 mL of air, stored at 40°C for 1 week, and then an oxygen absorption amount was calculated by measuring an oxygen concentration in the aluminum bag, and evaluated as follows. A: Oxygen absorption amount of 120 mL or more B: Oxygen absorption amount of less than 120 mL Example 1

[0069] The length of the peripheral wall portion was defined as 20 mm, the thickness of the peripheral wall portion was defined as 1.0 mm, the total length of the second inner peripheral wall portion and the crimping portion was defined as 4.0 mm, the thicknesses of the second inner peripheral wall portion and the crimping portion were defined as 0.5 mm, and the outer diameter of the bottom portion was defined as 14 mm. A polypropylene container was filled with 1.72 g of an iron-based deoxidizer to achieve a filling rate of 80%. The iron-based deoxidizer was prepared by the following method. An aqueous solution prepared by dissolving 20 g of calcium chloride dihydrate in 20 g of water was added dropwise to 48 g of diatomaceous earth ("CG-1C" available from Isolite Insulating Products Co., Ltd.) while being mixed, and was uniformly impregnated into the diatomaceous earth. Next, 1.1 g of activated carbon and 1.4 g of gypsum were added to the diatomaceous earth and mixed to obtain 91 g of a moisture donor (A). An iron-based deoxidizer was obtained as a deoxidizer composition as a powder mixture by mixing 54 parts by mass of iron powder (average particle diameter: 100 µm) and 46 parts by mass of the moisture donor (A). A container for a powdery or granular material (package) was produced by: setting the filling rate of the iron-based deoxidizer to about 80%; processing a laminate paper obtained by laminating a polyethylene resin (resin layer) onto a paperboard (paper layer, basis weight: 259 g / m 2< ) so that the basis weight of the polyethylene resin was 20 g / m 2< as a lid body on the step of the container body portion so that the diameter was 14 mm φ; disposing the laminate paper so that the resin layer side was in contact with the step and that the resin layer and the paper layer were located in this order from the bottom surface side; and crimping the crimping portion using a heating jig under conditions of a heating temperature of 100°C, a crimping time of 1 second, and a crimping pressure of 9.1 × 10 5< Pa ± 0.6 × 10 5< Pa(see FIG. 1). Note that the extension line of the bent end portion of the crimping portion had a structure of intersecting the second inner peripheral wall portion (see FIG. 1).Example 2

[0070] A container for a powdery or granular material (package) was produced in the same manner as in Example 1, except that a paperboard (paper layer, basis weight: 259 g / m 2< ) was further stacked onto the paperboard (paper layer) side of the laminate paper obtained by laminating a polyethylene resin (resin layer) onto a paperboard (paper layer, basis weight: 259 g / m 2< ) so that the basis weight of the polyethylene resin was 20 g / m 2< as the lid body; and that the laminate paper was disposed so that the resin layer side of the laminate paper was in contact with the step and that the resin layer, the paper layer and the paper layer were located in this order from the bottom surface side.Example 3

[0071] A container for a powdery or granular material (package) was produced in the same manner as in Example 1, except that a paperboard (paper layer, basis weight: 259 g / m 2< ) was further stacked onto the resin layer side of the laminate paper obtained by laminating a polyethylene resin (resin layer) onto a paperboard (paper layer, basis weight: 259 g / m 2< ) so that the basis weight of the polyethylene resin was 20 g / m 2< as the lid body; and that the laminate paper was disposed so that the further stacked paperboard (paper layer) side was in contact with the step and that the paper layer, the resin layer and the paper layer were located in this order from the bottom surface side.Example 4

[0072] A container for a powdery or granular material (package) was produced in the same manner as in Example 1, except that a paperboard (paper layer, basis weight: 259 g / m 2< ) was further stacked onto the paperboard (paper layer) side of the laminate paper obtained by laminating a polyethylene resin (resin layer) onto a paperboard (paper layer, basis weight: 259 g / m 2< ) so that the basis weight of the polyethylene resin was 20 g / m 2< as the lid body; and that the laminate paper was disposed so that the further stacked paperboard (paper layer) side was in contact with the step and that the paper layer, the paper layer and the resin layer were located in this order from the bottom surface side.Comparative Example 1

[0073] A container for a powdery or granular material was produced in the same manner as in Example 1, except that a paperboard (paper layer, basis weight: 259 g / m 2< ) was used as the lid body.Comparative Example 2

[0074] A container for a powdery or granular material (package) was produced in the same manner as in Example 1, except that two paperboards (paper layers, basis weight: 259 g / m 2< ) were stacked and used as the lid body.Comparative Example 3

[0075] A container for a powdery or granular material (package) was produced in the same manner as in Example 1, except that a sintered resin was used as the lid body.Comparative Example 4

[0076] A container for a powdery or granular material (package) was produced in the same manner as in Example 1, except that a polypropylene resin was used as the lid body.

[0077] [Table 1] Table 1ExamplesComparative Examples12341234Configuration of lid from bottom portion side (resin layer: R, paper layer: P)R, PR, P, PP, R, PP, P, RPP, PR (sintered resin)R (polypropylene resin)Leakage of powdery or granular materialAAAAAAABRust stainAAAABBBAOxygen absorptionAAAAAAAB

[0078] As can be seen from Table 1, according to the present invention, even when rust is generated on the powdery or granular material due to moisture or the like in the air that has entered the container 100 or 110 for a powdery or granular material, the rust can be prevented from spreading to the lid body 50 while allowing ventilation between the inside and the outside of the container, and, as a result, rust stain can be suppressed. The container for a powdery or granular material of the present invention is also excellent in air permeability, and can be suitably used even when the powdery or granular material is a desiccant or an oxygen absorbent.Industrial Applicability

[0079] The container 100 or 110 for a powdery or granular material of the present invention can prevent rust from spreading to the lid body 50 even when rust is generated on the powdery or granular material due to moisture or the like in the air that has entered the container 100 or 110 for a powdery or granular material while allowing ventilation between the inside and the outside of the container 100 or 110 for a powdery or granular material, and, as a result, rust stain can be suppressed. Therefore, the container is suitably used in a package containing the powdery or granular material. The container for a powdery or granular material of the present invention is also excellent in air permeability, and thus is suitable when the powdery or granular material is a desiccant or an oxygen absorbent.Reference Signs List

[0080] 100, 110: container for powdery or granular material 10: container body portion, 20: bottom portion, 20A: outermost point of inner diameter of bottom portion 30: peripheral wall portion, 31: first inner peripheral wall portion, 33: step, 33A: inner-diameter-side end point of step, 35: second inner peripheral wall portion, 37: crimping portion, 37A: end portion (of crimping portion) 50: lid body, D: diagonal line, E: extension line, G: gap

Claims

1. A container for a powdery or granular material, comprising: a container body portion that contains a powdery or granular material; and a lid body, wherein the container body portion includes: a bottom portion; and a peripheral wall portion rising from an outer edge of the bottom portion, the peripheral wall portion includes: a first inner peripheral wall portion rising from the bottom portion on an inner peripheral side of the peripheral wall portion and having a smaller diameter than that of the lid body; a second inner peripheral wall portion having a larger diameter than that of the first inner peripheral wall portion and connected to the first inner peripheral wall portion with a step; and a crimping portion that is disposed at an end portion on a side opposite to the bottom portion and is bent toward an inner peripheral side of the container body portion, and the lid body is disposed between the step and the crimping portion and includes at least a paper layer and a resin layer.

2. The container for a powdery or granular material according to claim 1, wherein the container body portion and / or the resin layer has no air permeability.

3. The container for a powdery or granular material according to claim 1 or 2, wherein a gap is provided between at least the resin layer of the lid body and the container body portion, the gap allowing ventilation between an inside and an outside of the container for a powdery or granular material.

4. The container for a powdery or granular material according to claim 1 or 2, wherein, in the lid body, an area of a surface of the resin layer facing the bottom portion of the container body portion is smaller than an area of a surface of the paper layer facing the bottom portion of the container body portion.

5. The container for a powdery or granular material according to claim 1 or 2, wherein the lid body is formed by stacking a paper layer, a resin layer, and a paper layer in this order from a bottom portion side of the container body portion.

6. The container for a powdery or granular material according to claim 1 or 2, wherein a thickness of the paper layer of the lid body is larger than that of the resin layer of the lid body.

7. The container for a powdery or granular material according to claim 1 or 2, wherein the lid body has a flat plate shape.

8. The container for a powdery or granular material according to claim 1 or 2, wherein the peripheral wall portion has a diameter increasing toward a side opposite to the bottom portion.

9. The container for a powdery or granular material according to claim 1 or 2, wherein, in a cross-sectional view, an extension line obtained by extending, in a radial direction, an intersection point at which diagonal lines connecting an inner-diameter-side end point of the step and an outermost point of an inner diameter of the bottom portion intersect is located on the bottom portion side from a center of the first inner peripheral wall portion in an axial direction.

10. The container for a powdery or granular material according to claim 1 or 2, wherein the powdery or granular material is a desiccant and / or an oxygen absorbent.

11. A package comprising: the container for a powdery or granular material according to claim 1 or 2; and a powdery or granular material contained therein.

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