JPH0939951A - Container for moisture-proof detergent - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To sufficiently manufacture moisture-proof properties, to prevent powdery detergent, which is the content, from forming lumps and the like, have strength as a container, and to manufacture at low cost. It is an object of the present invention to provide a container for a moisture-proof detergent that can do the above. SOLUTION: A container for moisture-proof detergent, characterized in that the container is made from a laminate in which a resin film having a high moisture-proof property, an adhesive layer, and a paperboard having a basis weight of 200 to 70 / m ² are laminated in this order. It is.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moisture-proof detergent container, and more particularly to a moisture-proof detergent container suitable for filling and packaging powdery detergent.

[0002]

Conventionally, as a container for filling and packaging a powdered detergent, although various types have been proposed, usually, the basis weight 300 to 600 g / m ² of the co - oxalatoborate - polyethylene extruded roll paper 60 to 300 basis weight through the resin layer
A backing liner of g / m ² position-a laminated body laminated on paper is used as a material for box making, and a paper container assembled from this is generally known. A powdery detergent, which is the content, is filled and packaged in this product, which is sold at retail stores and the like through processes such as storage and distribution, and is used for washing clothes and the like in ordinary households.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above-mentioned detergent container, since the content is a powdery detergent, the moisture-proof property is particularly required.
Approximately 20 g / m ² · 24 under conditions of ℃ and 90% relative humidity
Although it has moisture resistance at the hr position, it cannot be said that it has sufficiently satisfactory moisture resistance.
In the above-mentioned paper container, the container is filled and packed with powdered detergent, and when placed in the storage / distribution process, the powdered detergent which is the content forms a lump due to moisture with the passage of time, and sometimes, There is a problem that molds and the like are generated and inconvenience is caused when the mold is used, and it cannot be said that the moisture resistance is sufficiently satisfied. Therefore, the present invention is for a moisture-proof detergent that sufficiently satisfies the moisture-proof property, that the powdery detergent does not form lumps, has strength as a container, and can be manufactured at low cost. The purpose is to provide a container.

[0004]

As a result of various studies to solve the above problems, the present inventor has found that a film of a resin having high moisture resistance such as a biaxially stretched polypropylene film is used as a low density polyethylene. A paperboard having a basis weight of 200 to 700 g / m ² is laminated through an extruded resin layer such as to produce a laminate, and the laminate is used as a material for forming a container. Then, when the powdery detergent was filled and packaged in the detergent container, it was excellent in moisture proofing, did not cause lumps of detergent in the storage and distribution process, etc., and had strength as a container. The present invention has been completed with the finding that the container can be manufactured at low cost.

That is, according to the present invention, a resin film having a high moisture resistance, an adhesive layer, and a basis weight of 200 to 700 g / m ^{2 are used.}
The present invention relates to a moisture-proof detergent container, characterized in that the detergent container is made from a laminate in which the paperboard is laminated in this order.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail below. INDUSTRIAL APPLICABILITY The present invention uses a film having a high moisture resistance as a resin film, which has a basis weight of 200 to 700 g / m ² by utilizing a lamination method which is commonly used in the field of packaging. By stacking it on paperboard to manufacture a laminate and using it as a raw material for container production, it has excellent moisture resistance and strength as a container, and at a low cost, it is filled and packed with powdery detergent. That is, it is possible to produce a detergent container suitable for use in such a case.

First, in the present invention, a film of a resin having a high moisture-proof property will be described. Examples of such a film include 40 ° C. and 90% relative humidity conditions (40 ° C.,
It is possible to use a film of a resin having a moisture resistance of about 30 g / m ² · 24 hr or less at 90% RH). Specifically, for example, at a temperature of 40 ° C. and a relative humidity of 90%, a high-density polyethylene film having a moisture-proof property of about 10 g / m ² · 24 hr, similarly, about 15 g / m 2.
Unstretched polypropylene film having a moisture resistance of ² · 24 hr or position, likewise, oriented polypropylene film having a moisture-proof 6g / m ² · 24hr position, likewise 27 g / m
Oriented polyethylene terephthalate having a moisture resistance of ² · 24 hr or position - Tofirumu, likewise, 1.5 to 5 g / m ²
・ Polyvinylidene chloride film having a moisture-proof property of about 24 hr, similarly polyvinyl alcohol which is extremely rich in moisture-proof property
Lufilm (vinylon), also 4 to 5 g / m ²
・ Polyvinylidene chloride with moisture resistance of about 24 hr
A stretched polypropylene film or the like can be used. In the present invention, as the film of the resin having a high moisture resistance, either a non-stretched film or a uniaxially or biaxially stretched film can be used. In addition, as a film of resin rich in moisture resistance,
A thickness of about several μm to 200 μm can be used, but considering the effect of moisture resistance, handling in the manufacturing process, maintaining the strength of the container, manufacturing cost, etc., the thickness of about 5 μm to 30 μm is preferable. It is desirable to use a sano film. Thus, in the present invention, as a film of a resin having a high moisture-proof property, considering the effect of the moisture-proof property, the handling in the manufacturing process, the retention of the strength of the container, the manufacturing cost, etc., the thickness stretched in the biaxial direction 10 μm to 30
It is most preferred to use a μm polypropylene film.

In the present invention, a paperboard having a basis weight of 200 to 700 g / m ² will be described below. Examples of such paper include white pigments such as clay (white clay) and kaolin, and casein, starch and polyvinyl alcohol. Paper coated with an adhesive such as, for example, white ball paper, manifold paper, craft ball paper, yellow ball
Various paperboards such as roll paper, chip ball paper, and the like can be used. Thus, in the present invention, the above paperboard has a basis weight of about 200 to 700 g / m ² , preferably 500 to 650 g / m, in order to maintain the strength, stiffness, feel, etc. of the container. It is preferable to use the ^second one.

Next, in the present invention, a method for laminating the above-mentioned resin film having a high moisture-proof property and a paperboard will be described. There are various methods as such a method.
Extrusion lamination method, specifically, between a film of moisture-proof resin and paperboard, a resin that can be melted and mutually fused is extruded to form a resin layer and the two are stuck together. It can be laminated by a lamination method. In the above, as the resin that can be melted and fused to each other, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, ionomer-resin, ethylene-vinyl acetate copolymer, A heat-meltable resin such as a polyester resin, an ethylene-ethyl acrylate copolymer, an ethylene-acrylic acid copolymer, a methylpentene polymer, or the like can be used. Further, in the present invention, as a method of laminating the film of moisture-proof resin and the paperboard, a dry lamination method, specifically, a film of moisture-proof resin and paperboard, an adhesive or the like. Can be laminated by a usual laminating method. In the above, as the adhesive, known adhesives, for example, polyurethane-based adhesives, polyester-based adhesives, epoxy-based adhesives, ultraviolet or electron beam curable adhesives, polyvinyl acetate-based adhesives,
Acrylic adhesives, etc. can be used.
In the above, if necessary, a film or paperboard made of a resin having a high moisture-proof property can be optionally subjected to a known pretreatment in advance.

Next, in the present invention, the structure of a laminated body laminated by the above-mentioned laminating method will be described with reference to the drawings.
FIG. 1 is a cross-sectional view showing an outline of a layer structure of a laminated body according to the present invention. As shown in FIG. 1, the laminated body according to the present invention is
It has a layer structure in which a resin film 1 having a high moisture resistance, an adhesive layer 2, and a paperboard 3 having a basis weight of 200 to 700 g / m ² are laminated in this order. Thus, in the present invention,
Using the laminate obtained above, by a known method from this, to produce a blank plate that constitutes the container, box-making the blank plate as its inner surface, rich in moisture resistance according to the present invention, It is intended to produce a detergent container suitable for filling and packaging a powdery detergent. In the above, in the case of assembling and box-making the blank plate, the bottom portion, the side end portion, the upper portion, and the like form a container by laminating the portions where each side is polymerized. Generally, it is possible to use a known hot-melt type adhesive, emulsion type adhesive or the like which is used in the box-making process.

[0011]

EXAMPLES Next, the present invention will be described more specifically with reference to examples. Example 1 A stretched polypropylene film having a moisture resistance of about 10 g / m ² · 24 hr was prepared, which was biaxially stretched and had a thickness of 20 μm and a relative humidity of 40 ° C. and a relative humidity of 90%. A desired printed pattern was formed on the back surface of the gravure printing method. Next, while low-density polyethylene was melt extruded to a thickness of 15 μm on the printed pattern surface of the polypropylene film on which the printed pattern was formed as described above, a board having a basis weight of 600 g / m ² was further laminated on the extruded surface. Thus, a laminated body having the following constitution was manufactured. 20 μm thick stretched polypropylene film / thickness 15
μm low-density polyethylene layer / basis weight 600 g / m ² paperboard Next, using the laminate produced above, a blank plate constituting a detergent container is produced according to a conventional method, and then each side is joined. Then, a hot-melt type adhesive was applied to the portion to be bonded, and then box-making was carried out to manufacture the detergent container according to the present invention. In the detergent container obtained above, powdered detergent was filled and packaged by a conventional method, and then placed in a normal storage and distribution process, and no lumps or the like were found in the detergent as the content. .

[0012]

As is apparent from the above description, according to the present invention, a resin film having a high moisture resistance such as a biaxially stretched polypropylene film is provided with a basis weight of 200 through an extruded resin layer such as low density polyethylene. To 700 g / m ²
The above paperboard is laminated to produce a laminate, which is used as a material for forming a container, which is then box-formed to produce a detergent container, and then the detergent container is filled with powdered detergent and packaged. As a result, it is possible to manufacture a container that has extremely excellent moisture resistance, does not cause lumps of detergent and the like during storage and distribution processes, has strength as a container, and is low in cost.

[Brief description of drawings]

FIG. 1 is a cross-sectional view schematically showing the layer structure of a laminate according to the present invention.

[Explanation of symbols]

1 Moisture-proof resin film 2 Adhesive layer 3 Paperboard having a basis weight of 200 to 700 g / m ²

Claims (4)

[Claims] 1. A moisture-proof container comprising a laminate of a moisture-proof resin film, an adhesive layer, and a paperboard having a basis weight of 200 to 700 g / m ² laminated in this order to form a detergent container. Detergent container. 2. The film of a moisture-proof resin is a biaxially stretched polypropylene film having a thickness of 10 μm to 30 μm.
A container for a moisture-proof detergent described in. 3. The moisture-proof detergent container according to claim 1 or 2, wherein the moisture-proof resin film has a printed pattern layer on its back surface. 4. The container for a moisture-proof detergent according to claim 1, 2 or 3, wherein the adhesive layer comprises an extruded polyethylene resin layer.