JPS5845234Y2 - packaging bag - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a packaging bag made of a soft synthetic resin film such as polypropylene.

Recently, this type of packaging bag has been removably attached with slip paper for a computer in order to manage the inventory or sales of items using a computer.

In this case, conventionally, the computer slip was placed in the packaging bag along with the item, so in order to take the computer slip in and out, the opening/closing lid of the packaging bag had to be opened and closed one by one. Not only is it troublesome and it is not possible to take out and take out the bag quickly, but there is also a risk of damaging the items inside the bag when taking out and taking out the bag.

This invention provides a packaging bag with a pocket so that computer slips can be taken in and out easily and quickly, and this packaging bag with pockets can be continuously mass-produced using the so-called double-side sealing method. It is provided in a form that is possible.

Below, the drawings of the embodiment will be explained.
1 shows a bag made of a soft plastic film such as polypropylene, and the bag 1 can be made by folding one wide film to make two layers, or by stacking two films and folding the upper side of the film. The film 2 and the lower film 3 are connected to their left and right edges 4,
The lower film 3 is connected to the upper film 2 at the opening of the bag body 1.
The cover piece 5 is extended longer than the upper film 2 and folded back to the upper side of the upper film 2 to close the opening. On one side of the cover piece 5, a pocket tape 6 made of an appropriate soft synthetic resin film is attached. , both ends 5 a and 6 a' of the tape 6 are connected to the bag body 1
The pocket tape 6 is placed substantially parallel to the opening of the bag so as to overlap the left and right edges 4, 4, and the longitudinal edges 5a, 5a' of the pocket tape 6 are aligned with the lid piece 5. The inside of the pocket tape 6 is fixed by heat fusion or adhesive to form a pocket part 8 into which the computer slip 7 is placed, and both ends 6a and 6a' of this pocket tape 6 are attached to both left and right ends of the bag body 1. Edge 4
, 4', which overlaps with the lid piece 5, has a surface of the pocket tape 6, a surface of the lid piece 5, or both surfaces,
It is formed by applying a thermal fusion blocking means 9, such as applying printing ink or silicone coating, to completely block thermal fusion between the tape 6 and the lid piece 5, or to make it difficult to thermally bond the tape 6 and the lid piece 5. be.

In addition, the reference numeral 10 is a pressure-sensitive adhesive band that is attached to the upper film 2 so that it can be opened and closed when the lid piece 5 is folded back onto the upper film 2 to close the opening. The pressure-sensitive adhesive strip 10 may be provided on the side of the upper film 2, and 11 is a protective cover tape for the opening/closing pressure-sensitive adhesive strip 10, and the cover tape 11 is removable.

The bag body 1 constructed in this manner is continuously manufactured by the both side sealing method as described below.

That is, as shown in FIGS. 4 and 6, while a sheet of soft synthetic resin film is folded in half and transported at an appropriate speed in the direction of arrow A, the bag is first placed at the required location on the lid piece 5. body 1
The thermal sealing means 9 such as printing ink or silicone coating described above is applied by printing at intervals of the width of the bag, and two adhesive strips 5c for adhering the pocket tape 6 are applied.
, 5c' and the opening/closing pressure-sensitive adhesive band 10 are sequentially formed in parallel.

Next, as shown in FIGS. 5 and 7, the pocket tape 6 is sequentially applied and bonded to the two adhesive strips 5c and 5c' on the lid piece 5, and the pressure-sensitive adhesive for opening and closing is applied. It is manufactured by sequentially supplying a releasable cover tape 11 to the strip 10, and heat-sealing it and simultaneously heat-cutting it along the cutting line (B-B) at intervals of the width of the bag. .

In the bag 1 obtained here, the upper film 2 and the lower film 3 are firmly attached to each other at the left and right edges 4, 4' of the bag 1 during thermal cutting along the line (B-B). Although the pocket tape 6 is heat-sealed and formed into a complete bag shape, there are
Since the thermal fusion blocking means 9 is interposed to prevent the two from being thermally fused as much as possible, and the area can be opened as shown in FIG. This allows the computer slip 7 to be taken in and taken out.

In this case, if the length dimension 11 of the thermal fusion blocking means 9 is made slightly smaller than the inner dimension 12 of the pocket section 8, the opening dimension of the pocket section 8 becomes the length of the means 9, so that the pocket section It is possible to prevent the slip paper 7 placed in the slot from being easily removed and falling.

Incidentally, during the manufacturing process, the pocket tape 6 may be heat-sealed at both longitudinal edges 5a, 5a' to the lid piece 5, and the heat-sealing blocking means 9 may be heat-sealed to the pocket tape 6. Needless to say, the pocket tape 6 may be provided by printing on the side, or may be provided on both the tape 6 and the lid piece 5. Furthermore, the pocket tape 6 may be provided at the illustrated lid piece 5.
It may be provided not only on the upper surface side but also on the lower surface side thereof, or at an appropriate location on the outer surface of the upper film 2 or the lower film 3.

As described below, the present invention provides a bag in which two layers of soft synthetic resin films are heat-sealed to each other at the left and right edges, and one film is bonded to the other film at the opening of the bag. One side of the lid piece formed to be more extended,
Or, on the outer surface of one of the two films, a pocket tape made of a soft synthetic resin film is placed approximately parallel to the opening, and both ends of the tape overlap the left and right edges of the bag body. The ends of the pocket tape in the longitudinal direction are heat-sealed or adhered to the lid piece or film that the end tape comes into contact with, and both ends of the pocket tape are placed along the left and right ends of the bag. The part where the tape is polymerized is provided with a thermal sealing means for the lid piece or film that comes into contact with the tape, and when manufacturing bags using the both side sealing method, a pocket for storing computer slips, etc. is also provided at the same time. Because the packaging bag of the present invention can be easily manufactured and mass-produced at low cost, the sandpaper can be easily inserted into and removed from the pocket.
Since it is possible to do this without opening and closing the lid part of the bag, it is possible to easily and quickly take in and take out slips, etc., and there is an effect that the items in the bag will not be damaged by touching them.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view of the main parts of the bag of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG.
The figure is a perspective view of the main parts of the bag of the present invention, Figures 4 and 5 are diagrams showing the manufacturing process of the bag of the present invention, Figure 6 is a sectional view taken along VI-VI of Figure 4, and Figure 7 is a cross-sectional view of the bag of the present invention. A sectional view taken along line Vll-VII in the figure. 1...Bag body, 2...Upper film, 3
...Lower film, 4.4'...Both left and right edges, 5...Lid piece, 6...Pocket tape, 6C96C'. ...adhesive strip, 6
a, 6a'...Both ends of the tape, 6b, 6b'...
... Tape longitudinal side edges, 9 ... Heat fusion blocking means.

Claims (1)

[Scope of utility model registration request] A bag formed by heat-sealing two layers of soft synthetic resin films to each other at both left and right ends, with one film extending longer than the other at the opening of the bag. A pocket tape made of a soft synthetic resin film is placed on one side of the lid piece, or on the outer surface of either of the two films, so that the pocket tape is approximately parallel to the opening, and both ends of the tape are on the left and right sides of the bag body. The pocket tape is placed so as to overlap both side edges, and the longitudinal side edges of the pocket tape are heat-sealed or adhered to the lid piece or film that the tape contacts, and both ends of the pocket tape are attached to the bag body. A packaging bag provided with heat-sealing blocking means for the lid piece or film in contact with the tape at the overlapping portions of the left and right edges of the packaging bag.