JP2005263234A - Paper container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper container which enhances the adhesiveness of a sealing strip of paper to the opening of a container body. <P>SOLUTION: In the paper container 10, the opening 11E of a container body 11 is sealed by a sealing strip of paper 13. The entire outer periphery on the side of the opening 11E out of the outer peripheries of the container body 11 forms an unvarnished part 22, and the peripheral edge of the sealing strip of paper 13 is adhered to the unvarnished part 22. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a paper container suitable for use in a powder detergent paper container or the like.

As a powder detergent paper container, there is a powder detergent paper container in which the opening of the container body is sealed with a sealing paper in order to seal the powder detergent in the contents at the distribution storage stage. The sealing paper is bonded to the entire circumference of the outer periphery of the container body on the opening side.
JP2001-315767

  In powder detergent paper containers, in general, printing is performed on the outer periphery of the container main body, and furthermore, design properties such as gloss and matte are given to the printing, and abrasion resistance is given to the surface of the printing. As the surface treatment, a colorless transparent or translucent varnish is applied to the printing surface.

  In the conventional powder detergent paper container, the above-mentioned printing and varnish are applied to the outer periphery of the opening side of the container body to which the sealing paper as described in Patent Document 1 is bonded. Impairs adhesive properties of sealing paper.

  The subject of this invention is improving the adhesiveness of the sealing paper to the opening part of a container main body in a paper container.

  Invention of Claim 1 is a paper container which sealed the opening part of the container main body with sealing paper, Comprising: The outer periphery of the container main body is made into the varnish non-applied part to which the outer periphery by the side of an opening part is not provided. The periphery of the sealing paper is bonded to the non-varnish portion.

  As shown in FIG. 1, the powder detergent paper container 10 includes a container main body 11, a lid 12, and a sealing paper 13.

  The container body 11 is assembled by folding only a paper or a material laminated with a plastic film using paper as a main material, and includes a front plate 11A, a back plate 11B (not shown), both side plates 11C, 11C, and a bottom plate 11D. (Not shown).

  The container body 11 surrounds and forms an opening 11E with upper ends of the front plate 11A, the back plate 11B, and the side plates 11C and 11C, and is located on the side of the opening 11E of the front plate 11A, the back plate 11B, and the side plates 11C and 11C. Folding pieces 11G are continuously connected to each opening edge portion 11F, which is an edge portion, through a half cut line provided from the outside similar to that of actual fair 2-332567, and the folded pieces 11G are arranged so as to open this half cut line. The front plate 11A, the back plate 11B, and both side plates 11C and 11C are folded back. The depth of the half-cut line corresponds to the opening edge portions 11F of the front plate 11A, the back plate 11B, the side plates 11C, 11C, which are aligned by opening the half-cut line when the folded piece 11G is folded back, and to them. It is preferable that the thickness of the container body 11 be 2/3 to 1/2 so that a flat surface that is flush with the upper end of the folded piece 11G is formed. The folded piece 11G adheres to the inner surfaces of the front plate 11A, the back plate 11B, and the side plates 11C, 11C in this embodiment, but it does not necessarily need to be bonded. As a result, the opening edge 11F of the front plate 11A, the back plate 11B, the side plates 11C, 11C of the container body 11 and the upper end of the folded piece 11G corresponding to them are flush with each other as shown in FIG. To form a flat planar edge (width w).

  The lid 12 is assembled by folding only a paper or a material laminated with a plastic film using paper as a main material, and includes a front plate 12A, a rear plate 12B (not shown), both side plates 12C and 12C, and a top plate 12D. Have The lid 12 includes a knob 12E on the front plate 12A, and a hinge coupling portion 12F (not shown) on the rear plate 12B.

  The paper container 10 is configured by hinge-joining a hinge coupling portion 12F of the lid 12 to a back plate 11B of the container body 11. At this time, the paper container 10 seals the opening 11E of the container main body 11 with the sealing paper 13 so that the powder detergent of the contents can be sealed at the distribution storage stage.

  As shown in FIG. 3, the paper container 10 has a printing unit 21 as a whole of the outer periphery formed by the front plate 11 </ b> A, the back plate 11 </ b> B, and the both side plates 11 </ b> C and 11 </ b> C of the container body 11, but the outer periphery on the opening 11 </ b> E side. The whole circumference is defined as a varnish non-applied portion 22 (width h) having a constant width. The printing unit 21 performs printing on the outer surfaces of the front plate 11A, the back plate 11B, and the both side plates 11C and 11C, and further gives design such as gloss and matte to the print, and provides resistance to the surface of the print. As a surface treatment for imparting abrasion, a varnish such as a colorless transparent or translucent op varnish is applied to the printing surface. In the varnish non-applying portion 22, printing and varnishing are not performed.

  However, in the present invention, the varnish non-applied portion 22 may be printed but not varnished.

  In the paper container 10, the rectangular frame-shaped adhesive portion 13A of the sealing paper 13 that covers the opening portion 11E of the container body 11 is connected to the opening edge portions 11F of the front plate 11A, the back plate 11B, and the side plates 11C, 11C of the container body 11. And the upper end of the folded piece 11G corresponding to them are bonded to the flat surface edge of width w, and are the peripheral edge on the outer peripheral side from the bonding portion 13A of the sealing paper 13 and each opening of the container body 11 The adhesion part 13B defined on the periphery protruding around the edge part 11F is adhered to the varnish non-applied part 22 provided on the front plate 11A, the back plate 11B, and the side plates 11C, 11C of the container body 11.

The manufacturing procedure of the paper container 10 is, for example, as follows (FIG. 4).
(1) Each opening edge portion 11F of the container body 11, the flat surface edge portion (width w) formed by the upper end portion of the folded piece 11G, and the varnish non-applied portion 22 (width h) of the container body 11 Apply adhesive. As the adhesive, for example, an aqueous emulsion adhesive can be used.

  (2) The adhesive is applied to a location (adhesive portions 13A, 13B) corresponding to the location where the adhesive is applied to the container body 11 in the sealing paper 13 with a width wider than the width of the adhesive applied to the container body 11. As the adhesive, for example, an aqueous emulsion adhesive can be used.

  (3) The adhesive portion 13A of the sealing paper 13 is placed in alignment with each opening edge portion 11F of the container body 11 and the flat surface edge portion formed by the upper end portion of the folded piece 11G.

  (4) The lid 12 is fitted on the outer periphery formed by the front plate 11A, the back plate 11B, and the side plates 11C, 11C of the container body 11 from the top of the sealing paper 13. At this time, the front plate 12A, rear plate 12B, and both side plates 12C, 12C of the lid 12 are used to connect the peripheral edge of the sealing paper 13 protruding around each opening edge 11F of the container body 11 to the front plate 11A of the container body 11. Fold toward the outer surface of the back plate 11B and the side plates 11C, 11C. Then, with the pressure applied to the top plate 12D of the lid 12, the adhesive portion 13A of the sealing paper 13 is pressure-bonded to each opening edge portion 11F of the container body 11 and the flat planar edge portion formed by the upper end portion of the folded piece 11G. The adhesive portion 13B of the sealing paper 13 is pressure-bonded to the varnish non-applied portion 22 of the container body 11 by pressure applied to the front plate 12A, the rear plate 12B, and the side plates 12C and 12C of the lid 12.

  Note that the sealing paper 13 is not limited to the one that is adhered to the container body 11 by external pressure positively applied to the lid 12, but is simultaneously adhered to the container body 11 while the lid 12 is fitted to the container body 11. It may be.

  (5) The front and rear knob portions 12E and the hinge coupling portion 12F of the lid 12 are bonded to the front plate 11A and the back plate 11B of the container body 11, respectively.

According to the present embodiment, the following operational effects can be obtained.
(Claim 1)
a The entire circumference of the outer periphery on the side of the opening 11E of the container body 11 to which the sealing paper 13 is bonded is the varnish non-applying portion 22. The varnish non-applying portion 22 extends around the entire circumference of the outer periphery of the container main body 11 with a certain wide width h (for example, 5 mm width), and provides a necessary and sufficient bonding area for securely bonding the sealing paper 13. Thereby, the opening 11E of the container main body 11 can be simply and reliably sealed by the sealing paper 13, and the moisture resistance of the contents such as the detergent is improved.

(Claim 2)
b Since the varnish non-applying portion 22 of the above-mentioned a of the container main body 11 is not provided with printing and varnish, no matter how the other parts of the container main body 11 are printed and varnished, the sealing paper 13 is It is possible to securely adhere to the varnish non-applied portion 22.

(Claim 3)
c The folded piece 11G was continuously connected to the edge portion 11F on the opening 11E side of the container body 11 via a half-cut line provided from the outside, and the folded piece 11G was folded inside the container body 11. The container body 11 and the upper end of the folded piece 11G form a flat planar edge that is flush with each other, and the edge 11F on the side of the opening 11E of the container body 11 is simply folded. The sealing paper 13 can be stably adhered to the flat surface edge as compared with the case where the edge is formed. Although this flat planar edge has a relatively narrow width w (eg, 1.4 mm) and it is difficult to increase the adhesive area of the sealing paper 13 by widening, By being accompanied by the presence, the sealing performance by the sealing paper 13 can be further improved.

FIG. 1 is a schematic perspective view showing the open state of the paper container. FIG. 2 is a schematic cross-sectional view showing the main part of the paper container. FIG. 3 is a schematic perspective view showing the container body of the paper container. FIG. 4 is a process diagram showing a procedure for manufacturing a paper container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Paper container 11 Container main body 11B Opening part 11F Opening edge part 11G Folding piece 13 Sealing paper 22 Varnish non-giving part

Claims (3)

A paper container in which the opening of the container body is sealed with a sealing paper,
The paper container which made the outer periphery of the container main body the outer periphery by the side of an opening part as the varnish non-applied part to which a varnish is not provided, and adhere | attached the periphery of the sealing paper on the said opening part and / or the said varnish non-applied part.   The paper container according to claim 1, wherein the varnish non-applied portion is not applied with printing and varnish.   Folding pieces are continuously connected to the edge of the opening side of the container body through a half-cut line provided from the outside, the folding pieces are folded back to the inside of the container body, and the sealing paper is folded to the container body. The paper container of Claim 1 or 2 formed by adhere | attaching also on the upper end part.

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