JP2750503B2 - Header label for sealing packaging bag and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a header label mainly used for sealing an opening of a net packaging bag, and a method for producing the same.

[0002]

2. Description of the Related Art A net packaging bag cannot print and display characters and the like on the bag body, and it is troublesome to seal the opening. As a stop, header labels are used. This header label is generally formed by folding a strip of paper or synthetic paper into two, sandwiching the opening of the net-made packaging bag with the folded header label, and fastening it with a stapler from above. Articles to be packaged in the net packaging bag include, for example, agricultural products such as shiitake mushrooms, okra, and shishito, which are mostly packaged by farmers.
Folding is also performed at each farm.

[0003]

As described above, for example, in the case of packaging agricultural products in net packaging bags, each farmer performs a folding operation of a header label. The number of header labels is enormous, and the operation of folding the header labels in two is very troublesome for each farmer. Therefore, although it is desired to deliver a header label that has been folded in advance, if the header label is folded in two by a machine, the folding cost is increased, and the folded header label is then repelled by the material. Due to the fact that the folds open more naturally and the workability is poor, it is hardly performed to fold the header label in advance and deliver it to the farmer.

Further, when water resistance is required for the header label, synthetic paper is used for the material of the header label. However, the synthetic paper cannot be folded in two and opens immediately. Therefore, sealing the opening of the net-made packaging bag by such a header Laval is a very troublesome operation. In addition, since the header label is usually stapled to the opening of the net-made packaging bag, there is a problem that the stapler needle has a high risk of entering the bag.

SUMMARY OF THE INVENTION In view of the above, the present invention provides a header label which has a form as if folded completely in half, and which is capable of sealing an opening of a net-made packaging bag by heat sealing. Is to be obtained in large quantities at low cost by simple means.

[0006]

According to the present invention, in order to achieve the above object, according to the first aspect of the present invention, a paper base is used as a header label for encapsulating a packaging bag, and a heat-sealable synthetic resin is formed on one surface thereof. Two strip-shaped materials having a resin coating layer are stacked so that the surfaces having a heat-fusible synthetic resin coating layer face each other, and one end thereof is heat-sealed. I decided that.

According to a second aspect of the present invention, as a method for manufacturing a header label for encapsulating a packaging bag, a long material based on paper and having a heat-fusible synthetic resin coating layer on one surface is formed by heat-sealing. The two sheets having the fusible synthetic resin coating layer are drawn face-to-face in a state of facing each other,
A plurality of heat-sealed fusion parts are formed in the pull-out direction at predetermined intervals in the width direction, and then the material on which the fusion parts are formed is cut to a predetermined length in the pull-out direction. The strip was cut in a strip shape so that the fused portion became one end and the other end was in a non-fused state.

[0008]

According to the first aspect of the present invention, as a header for sealing a packaging bag, two strip-shaped materials based on paper and having a heat-fusible synthetic resin coating layer on one surface. However, since the surfaces having the heat-fusible synthetic resin coating layer were placed face-to-face and one end was heat-sealed, one end was heat-sealed. Since the two materials have the same form as the one obtained by folding one material into two, and since the two materials act in the direction of closing each other, they can be held while sandwiching the opening of the packaging bag, and the header label can be held. The work of fastening the opening and the opening of the packaging bag is facilitated.

When the header label is heated during the fixing, the heat-sealable synthetic resin coating layers on the opposing surfaces of the two materials are welded to each other. The adhesive synthetic resin coating layer is fused, and the opening of the packaging bag is sealed. According to the second aspect of the present invention, as a method of manufacturing a header label for packaging bag sealing, a long material having a heat-fusible synthetic resin coating layer on one surface based on paper is used. A plurality of fused portions formed by heat fusion are formed in the pull-out direction at predetermined intervals in the width direction on the two-layered material at a predetermined interval in the width direction. , Next, cut the material having the fused portion to a predetermined length in the drawing direction, and then cut the cut material,
Since the fusing part was cut into strips so that the one end was on one side and the other end was in a non-fused state, one piece of material was cut into two pieces.
It is possible to mass-produce a header label having the same form as the folded form, and it is possible to reduce the production cost of the header label.

[0010]

Embodiments of the present invention will be described below. FIG. 1 shows an embodiment of a header label according to the present invention. In FIG. 1, reference numeral 1 denotes a strip based on a paper 2 having a heat-fusible synthetic resin coating layer 3 on one surface. Material. The two materials 1 and 1 configured as described above are
The surfaces having the heat-fusible synthetic resin coating layer 3 are superposed so that they face each other, and one end thereof is heat-sealed.
Reference numeral 4 denotes a fusion bonding portion. The heat-fused synthetic resin coating layer 3 is made of polyethylene which is fused at a relatively low temperature.

FIG. 2 shows another embodiment of the header label according to the present invention. In particular, FIG. 2 shows an embodiment of the header label in the case where water resistance is required. The heat-fusing property is applied to the back surface of the surface of the paper 2 of the header label of the embodiment shown in FIG. 1 having the heat-fusible synthetic resin coating layer 3, that is, the outer surface when two materials 1 and 1 are stacked. A synthetic resin coating layer 5 having a higher melting point than the synthetic resin coating layer 3 is provided. In this embodiment, polypropylene is used for the synthetic resin coating layer 5.

FIGS. 3 to 6 are explanatory views showing one embodiment of a method for manufacturing a header label according to the present invention. First, a paper 2 is used as a base, and a heat-fusible synthetic resin coating layer 3 is formed on one surface thereof.
Is drawn out in the longitudinal direction in a state where two sheets of the long material 1 having the heat-fusible synthetic resin coating layer 3 face each other and facing each other (FIG. 3). Then, the heater 6 is applied at a predetermined interval in the width direction, and a plurality of fused portions 4 of the thermally fusible synthetic resin coating layer 3 are formed in the drawing direction by thermal fusion (FIG. 4). Next, the raw material 1a on which the fused portion 4 is formed is cut by the cutter 7 to a predetermined length in the drawing direction. This length is set to a length corresponding to the length of the opening of the packaging bag (FIG. 5). Next, the cut material 1b
Is cut into strips so that the fusion-bonded portion 4 is on one end and the other end is in a non-fused state (FIG. 6).

As a result, the two strips 1 and 1 formed of the paper 2 and having the heat-fusible synthetic resin coating layer 3 on one side are formed into the heat-fusible synthetic resin coating layer 3. Are completed so as to face each other, and a header label whose one end is heat-sealed is completed.

In the manufacturing process of the header label,
As a means for stacking two sheets of material 1, two pieces of material 1, 1
In addition to the overlapping (FIG. 7), one material 1 may be folded and two sheets may be overlapped (FIG. 8). In the case of a header label requiring water resistance, the material 1 having a synthetic resin coating layer 5 having a higher melting point than the heat-fusible synthetic resin coating layer 3 on the other surface of the paper 2 is used. 1 are superimposed such that the surfaces having the heat-fusible constituent resin coating layer 3 face each other (FIGS. 9 and 10).

FIG. 11 shows an example of sealing the net-made packaging bag 8 with the header label according to the present invention. The unfused end is heated and sealed. 9 is a seal part.

[0016]

As described above, according to the header label according to the first aspect of the present invention, two materials are replaced by one material.
It takes the same form as the folded form, and since the two materials act in the direction of closing each other, they can be held with the opening of the packaging bag sandwiched therebetween, and the work of fixing the header label and the opening of the packaging bag together Can be easily performed.

When the header label is heated during the fixing, the heat-fusible synthetic resin coating layers on the opposing surfaces of the two materials are melted, and heat is applied between the nets of the net-made packaging bag. Since the fusible synthetic resin coating layer is fused and the opening of the packaging bag can be sealed, the sealing can be performed more safely and more securely than the stapling.

Further, according to the method for manufacturing a header label according to the second aspect of the present invention, it is possible to reduce the cost by mass production, and to provide a header label having a folded form at a low cost. Therefore, it is possible to eliminate the manual folding operation of the header label from the packaging operation, and it is possible to perform the packaging operation more easily and efficiently.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a header label according to the present invention.

FIG. 2 is a perspective view showing another example of a header label according to the present invention.

FIG. 3 is an explanatory view showing a manufacturing process of the header label according to the present invention.

FIG. 4 is an explanatory view showing a manufacturing process of the header label according to the present invention.

FIG. 5 is an explanatory view showing a manufacturing process of the header label according to the present invention.

FIG. 6 is an explanatory view showing a manufacturing process of the header label according to the present invention.

FIG. 7 is an explanatory view showing two stacked materials.

FIG. 8 is an explanatory view showing two stacked materials.

FIG. 9 is an explanatory diagram showing an example in which two water-resistant materials are stacked.

FIG. 10 is an explanatory view showing an example in which two water-resistant materials are stacked.

FIG. 11 is an explanatory diagram showing an example of use of a header label according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 material 1a material having fused portion formed 1b cut material 2 paper 3 heat-fusible synthetic resin film layer 4 fused portion 5 synthetic resin film layer 6 heater 7 cutter 8 packaging bag

Claims (2)

(57) [Claims] 1. A strip-shaped material based on paper and having a heat-fusible synthetic resin film layer on one surface thereof is face-to-face with the heat-fusible synthetic resin film layer facing each other. A header label for sealing a packaging bag, wherein the header label is heat-sealed at one end. 2. A long base material having a heat-fusible synthetic resin coating layer on one surface thereof, which is made of paper, and two sheets of which are laminated with the surface having the heat-fusible synthetic resin coating layer facing each other. A plurality of fusion parts formed by heat fusion are formed in the drawing direction at predetermined intervals in the width direction, and then the material on which the fusion parts are formed is separated by a predetermined length in the drawing direction. Header label for packaging bag sealing, characterized in that the cut material is cut into strips so that the fused portion becomes one end and the other end becomes a non-fused state. Manufacturing method.