JPH0620503Y2 - Hygiene item individual packaging - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hygiene article, preferably an individual bag for a napkin.

[0002]

2. Description of the Related Art Sanitary articles such as sanitary napkins are usually packaged individually in individual bags and sold on the market for reasons of hygiene and convenience of carrying. In a typical conventional individual packaging bag, one rectangular plastic sheet is folded so that the back surface extends in a state where the edges are misaligned, and the lid portion extending from the back surface is stacked on the surface.
Further, both side edges are sealed to each other in a portion not superposed on the surface of the lid portion, and both side edges of the lid portion are heat sealed to both side edges of the surface in a portion superposed on the surface, and Most of them had a structure in which the overlapping surface was sealed near the edge of the lid by a superposition heat-sealing portion parallel to the edge.

FIG. 6 shows the above-mentioned conventional example of a portion corresponding to the line X--X in FIG. 1 showing an individual bag structure of the present invention described later.
In opening the bag, as shown in FIG. 7, the end of the lid 1B is lifted, the heat seal part 2 is peeled off, and the bag is opened.

However, in the above-mentioned conventional example, since the heat-sealing force of the superposed heat-sealing portion 2 is too strong, it cannot be easily peeled off and opened, and the usability is poor. Further, when a plastic sheet having low strength is used, this plastic sheet is torn irregularly and cannot be used as a waste bag for used sanitary goods.

By the way, as a conventional technique for making it easier to open the individually packaged bag, there are the conventional open bags 58-77733 and 58.
8-154141, 63-163822, 63-1
89224, 63-189225, and Jikkou 62-20
20, those described in JP-A No. 62-11616 are known.

[0006]

However, what is actually put on the market is that the printed layer 3 is formed on the surface 1C of the corresponding portion of the superposed heat seal portion 2 and the superposed heat seal line 2 is formed.
The printed layer 3 is continuously formed along the
(See FIG. 9), the peelability of the print layer 3 is utilized to facilitate opening of the lid 1B (see FIG. 9).

Indeed, it is preferable in terms of usability to form the printing layer 3 to facilitate opening of the lid 1B. However, contrary to the above-mentioned conventional example, the polymerized heat seal portion 2
Since the heat-sealing force at is too weak, the polymerized heat-sealing portion 2 may be peeled off and opened during the process of transporting or carrying the whole bag or the process of carrying the individual packaging bag, and dust or the like may get inside. Invades and loses commercial value.

[0008] Therefore, an object of the present invention is to provide an individual packaging bag for hygiene articles which has good opening property, can be used as a disposal bag by maintaining the bag shape after opening, and has excellent sealing property. Especially.

[0009]

[Means for Solving the Problems] The above problem is that one rectangular plastic sheet is folded so that the back surface extends in a state where the edges are misaligned, and a lid portion extending from the back surface is stacked on the front surface. Further, both side edges are sealed to each other in a portion not overlapped with the surface of the lid portion by heat sealing, and both side edges of the lid portion are overlapped with both side edges of the surface by heat sealing in a portion overlapped with the surface, and In an individual packaging bag in which a superposed surface is sealed by an overlapping heat seal portion parallel to the edge of the lid portion in parallel with the edge, at a corresponding position of the overlapping heat seal portion, at least one of a surface and an inner surface of the lid portion. Form a printing layer that has a weaker heat sealing force than the base plastic sheet on the surface of
In addition, the problem can be solved by forming the printing layer intermittently along the polymerization heat-sealing line.

[0010]

As described above, it is preferable in terms of usability to form the printing layer to facilitate the opening of the lid. But,
As described above, in the process of transporting or carrying the whole bag, or in the process of carrying the individual packaging, the polymerized heat seal part may be peeled off and opened, which is not hygienic.

However, in the present invention, a printing layer having a heat-sealing force weaker than that of the base plastic sheet is formed on at least one of the surface and the inner surface of the lid at a considerable portion of the polymerization heat-sealing portion, and the polymerization heat-sealing is performed. Since the printing layer is formed intermittently along the seal line,
As will be described later, although the printed layer can be easily peeled off, the part where the printed layer is not formed is firmly heat-sealed, so that the lid is prevented from being opened during the transportation process. . However, overall, for example, the print layer is partially formed, so if you peel off the part where the print layer is not formed with a relatively weak force,
The printed layer portion can be peeled off very easily, and the total peeling force can be peeled off and opened much more easily than when the printed layer is not formed at all.

[0012]

EXAMPLES Next, the present invention will be described in detail with reference to Examples. FIG. 1 is a perspective view showing an individual bag structure of the present invention, and FIG. 2 is an enlarged plan view of a main part thereof.

The plastic sheet 1 constituting the individual packaging bag for packaging the napkin N is folded so that the back surface 1A extends with the edges 1a and 1b of the lids 1 and 1b offset from each other, and the lid portion extending from the back surface 1A. 1B is overlapped on the surface 1C, and further, is not overlapped on the surface of the lid 1B.
In c and 1e, both side edges are mutually and the surface 1C
In the overlapping portion 1d, the side edges of the lid portion 1B are hermetically sealed to the both side edges of the surface 1C by side edge heat sealing, and moreover, polymerization heat parallel to the edge edge 1b near the edge edge 1b of the lid portion 1B. The overlapping portion 1d is sealed by the seal portion 2.

However, in the above-mentioned individual packaging bag, as described above, the heat-sealing force in the superposition heat-sealing portion 2 is so strong that it cannot be easily peeled off and opened.

Further, as described above, the printing layer 3 is formed on the surface 1C of the corresponding portion of the superposition heat-sealing portion 2, and the printing layer 3 is continuously formed along the superposition heat-sealing line 2. On the contrary, since the heat-sealing force in the superposition heat-sealing part 2 is too weak, the superposition heat-sealing part 2 is peeled off and opened during the process of transporting or transporting the whole bag or the process of carrying individual bags. I will end up.

Therefore, in the present invention, as shown in FIGS. 1 and 2, a printing layer 3 having a heat-sealing force weaker than that of the base plastic sheet 1 is formed on the surface 1C at a considerable portion of the superposition heat-sealing portion 2. Further, the printing layer 3 was intermittently formed along the polymerization heat-sealing line 2.

Therefore, as shown in FIG. 2, the heat-sealable portion W is a weak portion W in the print layer 3 and can be easily peeled off, but the heat-sealable portion S is not formed in the print layer 3 portion. Since it is firmly heat-sealed, it is prevented that the lid portion 1B is opened during the transportation process. However, since the weak portion W having the heat sealability is partially formed as a whole, if the strong portion S having the heat sealability is peeled off with a comparatively weak force, the weak portion W having the heat sealability will be formed. It can be peeled off very easily, and the peeling force as a whole can be peeled off and opened much more easily than in the case where the printing layer 3 is not formed at all.

In the present invention, the pitch of the printed layer 3, that is, the heat-sealing weak portion W is preferably 10 to 30 mm, while the unprinted portion, that is, the heat-sealing strong portion S.
The pitch is preferably 0.1 to 3 mm. Further, the ratio of the weak heat-sealing portion W and the strong heat-sealing portion S in the polymerized heat-sealing wire 2 is 100: 1 to
100: 50 is preferable.

In this embodiment, the parallelogram-shaped printing layer 3 is formed intermittently, but the shape is not particularly limited and may be, for example, a rectangular shape shown in FIG. Further, the portion where the printed layer 3 is not formed can be formed into a ring shape (see FIG. 4) or a scattered spot shape (see FIG. 5).

[0020]

As described above, according to the present invention, the opening property is good, the bag shape can be maintained even after opening and can be used as a disposal bag, and the sealing property is excellent.

[Brief description of drawings]

FIG. 1 is a perspective view showing an individual bag structure of the present invention.

FIG. 2 is a plan view showing an enlarged view of a main part of FIG.

FIG. 3 is an enlarged view of an essential part showing another embodiment of the present invention.

FIG. 4 is an enlarged view of an essential part showing another embodiment of the present invention.

FIG. 5 is an enlarged view of an essential part showing another embodiment of the present invention.

FIG. 6 is a cross-sectional view of a main part showing a conventional example.

FIG. 7 is a cross-sectional view of an essential part showing a conventional example.

FIG. 8 is a cross-sectional view of an essential part showing a conventional example.

FIG. 9 is a cross-sectional view of a main part showing a conventional example.

[Explanation of symbols]

1 ... Plastic sheet, 1A ... Plastic sheet back surface, 1B ... Lid part, 1C ... Plastic sheet surface, 1
a, 1b ... Edge of plastic sheet, 2 ... Polymerization heat seal part, 3 ... Printing layer, S ... Strong heat sealability part, W ...
Weak heat seal, N ... Napkin.

Claims (1)

[Scope of utility model registration request] 1. A rectangular plastic sheet is folded and folded so that the back surface extends in a state where the edges are misaligned, a lid portion extending from the back surface is overlaid on the surface, and the lid portion is overlaid on the surface. Both edges are unsealed to each other, and in the overlap portion to the surface, both edges of the lid are heat-sealed to both edges of the surface and close to the edges of the lid. In the individual packaging bag in which the overlapping surface is sealed by the superposition heat-sealing portion parallel to the edge, at a corresponding position of the superposition heat-sealing portion, a base plastic sheet is formed on at least one of the surface and the inner surface of the lid portion. Form a printing layer with weak heat sealing,
An individual bag for a hygiene article, wherein the printed layer is intermittently formed along the superposition heat-sealing line.