JPS5845235Y2 - 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.
indicates a bag body made of a soft synthetic resin film such as polypropylene, and the bag body 1 is made by folding one wide film into two layers, or by overlapping two films and forming the upper film 2. and the lower film 3 at its left and right side edges 4,
The lower film 2 is connected to the upper film 3 at the opening of the bag 1.
The cover piece 5 is extended longer than the above to form a cover piece 5 that closes the opening even when folded back to the upper surface side of the upper film 2, and this cover piece 5 is further extended to form a cover piece 5 that covers the front or back side of the cover piece 5. A pocket piece 6 is formed by folding it back, and the front end edge 6a of this pocket piece 6 is fixed to the lid piece 5 by heat fusion or adhesive, and the inside thereof is shaped into a pocket part 8 into which a slip 7 for a computer is inserted. However, the surfaces of the pocket piece 6 or the lid piece portion are located at the portions where the side edges 6b, 6b' of the pocket piece 6 overlap the lid piece part 5 at the left and right side edges 4, 4' of the bag body 1. Heat fusion blocking means for completely blocking or making heat fusion between the pocket piece 6 and the lid piece 5 difficult, such as applying printing ink or silicone coating on the 5 or both surfaces. This is done by applying 9.

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 band 10 may be provided on the side of the upper film 2, and instead of this opening/closing pressure-sensitive adhesive band, a third pressure-sensitive adhesive band may be provided.
As shown in the figure, a so-called double-sided adhesive tape 10' coated with pressure-sensitive adhesive on both sides is used.
The pocket piece 6 may be adhered to the lid piece 5 using one side of the double-sided adhesive tape 10', and the lid piece 5 may be attached to the upper film 2 in an openable and closable manner using the other side of the double-sided adhesive tape 10'. good.

Further, reference numeral 1 denotes a protective cover tape for the opening/closing pressure-sensitive adhesive band 10 or the double-sided adhesive tape 10',
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. 5 and 7, 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 heat sealing blocking means 9 such as the printing ink or silicone coating described above is applied by printing or the like at intervals of the width of the bag, and adhesive bands 6C for adhering the pocket pieces 6 are sequentially formed.

Next, as shown in FIGS. 6 and 8, the pocket piece 6 is folded back onto the lid piece 5 and fixed with adhesive, and pressure-sensitive adhesive bands 10 for opening and closing are sequentially formed on the six pocket pieces.
A removable cover tape 11 is sequentially stacked and supplied on this,
Then, it is manufactured by thermally fusing and simultaneously thermally cutting along the cutting line (B-B) at intervals equal to the width of the bag.

The bag 1 obtained here has its upper film 2 and lower film 3, and the right and left edges 4, 4' of the bag 1 are strongly heated to each other during thermal cutting along the line (B-B). Both ends 6 of the pocket piece 6 are fused and formed into a complete bag shape.
A thermal fusion blocking means 9 is interposed between the overlapping portions of b, 6 b' and the lid piece 5 to prevent the two from being thermally fused as much as possible. Although it can be opened as shown in FIG. 4, the computer slip 7 can be taken in and out of the pocket section 8 from here.

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 front edge 6a of the pocket piece 6 may be heat-sealed to the lid piece 5 or may be bonded with double-sided adhesive tape 10', and the heat-sealing may be interrupted. The means 9 is provided by printing etc. on the side of the pocket piece 6, or
Alternatively, it goes without saying that it may be provided on both the pocket piece 6 and the lid piece part 5, and the pocket piece 6 may be provided on both the lid piece part 5.
Alternatively, the cover may be folded back to the lower surface side and bonded or heat-sealed (in this case, the opening/closing pressure-sensitive adhesive band is provided on the upper surface side of the lid piece).

As described above, the present invention provides a bag body made by heat-sealing two layers of soft synthetic resin films to each other at the left and right edges, in which one film is bonded to the other film at the opening of the bag body. The extended lid piece is further extended to form a pocket piece, and the pocket piece is folded back to the lid piece side and its tip side edge is heat-sealed or glued to the lid piece. At the part where both sides of the pocket overlap at the left and right edges of the bag body, the heat-sealing blocking means for the lid piece where the pocket piece comes into contact is touched. Since a pocket for storing computer slips, etc. can be formed at the same time, the packaging bag of the present invention can be mass-produced easily and at low cost.Moreover, it is easy to insert and take slips into and out of 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 the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view of the essential parts of the bag of the present invention, FIG. 2 is a sectional view taken along the line II-■■ of FIG. 1, and FIG. 3 is a second view of a different bag. 4 is a perspective view of the main parts of the bag of the present invention, Figures 5 and 6 are views showing the manufacturing process of the bag of the present invention, and Figure 7 is a view taken from Vll-VII in Figure 5. 8 is a cross-sectional view of FIG. 1...Bag body, 2...Upper film, 3
...Lower film, 4.4'...Both left and right edges, 5...Lid piece, 6...Pocket piece, 6a...・・・Pocket end side edge, 6C・
... Adhesive band, 6b, 6b' ... Both ends of pocket piece, 9 ... Heat fusion blocking means.

Claims (1)

[Scope of utility model registration request] A bag body made by heat-sealing two layers of soft synthetic resin films to each other at the left and right edges thereof, and a lid formed by extending one film from the other film at the opening of the bag body. One piece is further extended to form a pocket piece, and the pocket piece is folded back to the lid piece, and its tip side edge is heat-sealed or glued to the lid piece, while both ends of the pocket piece are attached to the left and right sides of the bag body. A packaging bag, in which the overlapping portions of both side edges are provided with heat-sealing blocking means for the lid piece portion in contact with the pocket piece.