JP2000062802A - Storing bag and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storing bag in which an operation for sticking a bag having a stored document such as a letter of guarantee stored therein to sticking member such as a cardboard box and the like may easily be carried out, the bag can be easily peeled off during its unpacking operation without damaging the surface of the bag as well as the surface of the cardboard box and then the storing bag can be used as it is to keep and store the stored document. SOLUTION: This bag is constituted such that an adhering sheet 3 having an adhesive agent layer arranged at its rear surface and a bag member 2 laminated on the surface of the adhering sheet 3 are provided with welded portions integrally welded with each other along both side edges, and a light welded layer 17a welded while its welding is slightly prohibited is arranged between a adhesive sheet 15 and the bag 2 and a peeling layer 17b welded under a state in which the welding is severely prohibited between the light welded layer 17a and the bag 2 while being positioned at least at least a portion near one location of an approaching upper end or a portion near the other location of an approaching lower end.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage bag to be attached to an adherend such as a cardboard box in the state of storing storage documents such as a guarantee certificate and a method for manufacturing the storage bag.

[0002]

2. Description of the Related Art For example, a storage body such as a warranty card or an instruction manual is packed in a package of electric products or the like stored in a cardboard box. Although the stored documents are stored in the bag, the bag can be attached to a predetermined portion of the cardboard box so as not to be lost.

[0003]

An adhesive tape such as cellophane tape has been conventionally used to attach a bag containing a storage document to a cardboard box. However, the adhesive tape is fed out from a roll by a predetermined length. Since it is necessary to attach the bag while cutting it, the work of attaching the bag is complicated and inefficient.

At this time, if the adhesive strength is weak, the bag may drop off and the stored documents may be lost. Therefore, an adhesive tape having a strong adhesive strength is generally used. When the user who purchased the product peels the bag from the cardboard box during unpacking, the thin skin of the cardboard peels off following the adhesive tape and adheres to the adhesive tape, which is unsightly. Also, as is frequently experienced, when the adhesive tape is peeled off from the bag in order to use the bag peeled from the cardboard box as it is as a storage bag for storage documents, the bag is damaged and is suitable as a storage bag. Cannot be used for.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above problems and is extremely easy in sticking a bag containing storage documents to an adherend such as a cardboard box in a package. The present invention provides a storage bag that can be easily peeled off after packaging and can be used as a storage bag for stored documents without damaging the bag body, and a manufacturing method thereof.

Therefore, the storage bag of the present invention is configured as a means in which a storage bag to be attached to an adherend such as a corrugated cardboard box in a state where storage documents such as a warranty card are stored is a laminated bag body. An adhesive sheet, the bag body is composed of synthetic resin front and back film portions having at least both side edges welded, and the adhesive sheet is a synthetic resin film sheet provided with an adhesive layer on the back surface. According to the invention, the back film portion of the bag body is polymerized, and a welding portion integrally welded to both side edges of the bag body is provided, and the film sheet of the adhesive sheet is at least along the welding portions of both side edges. Is provided with a weak welding layer that welds to the back film portion in a state in which the welding is slightly disturbed, and further, the weak welding layer is located at at least one of the upper end vicinity portion and the lower end vicinity portion of the film sheet. There further welded between each other wearing layer and the back film portion to a point comprising providing a release layer allowed to weld in a state of disturbed severely.

Further, the storage bag manufacturing method of the present invention is configured as a means, in the storage bag manufacturing method of being stuck to an adherend such as a corrugated cardboard box in a state where storage documents such as a warranty are stored, A step of transferring a continuous strip-shaped adhesive sheet material made of a synthetic resin film sheet provided with an adhesive layer covered with a release sheet on the back surface in the strip longitudinal direction,
By transferring a continuous strip-shaped bag material made of a synthetic resin film having front and back film portions that are polymerized with each other in the belt longitudinal direction, and by polymerizing the back film portion of the bag material on the surface of the adhesive sheet material. A step of forming a laminated strip, wherein a weak welding layer facing the back film portion is provided in advance on the surface of the film sheet constituting the adhesive sheet material, and a portion near the upper end of the film sheet. And a peeling layer is provided on at least one of the lower end vicinity portion and overlapped with the weakly welded layer, and by welding and cutting the laminated strip along a dividing line orthogonal to the strip longitudinal direction, A bag body having an adhesive sheet on the back side is formed, and welded portions integrally welded to both side edges of the bag body and the adhesive sheet are formed, and the adhesive sheet and the back film portion are formed along the welded portion. Weak adhesion layer Together allowed to weld through, lies in comprising brought welded through two layers of the sticking sheet and a back film portion positioned in at least one end portion of the solution attached part the weak welding layer and the peeling layer.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

[Embodiment of Storage Bag] As shown in FIG.
The storage bag 1 comprises a bag body 2 and an adhesive sheet 3, and the bag body 2 is superposed on the surface of the adhesive sheet 3 in a laminated state.

The bag body 2 is made of a synthetic resin film.
It is composed of front and back film parts 5 and 6 which are polymerized by half-folding at the bottom part 4 of the bag, and by forming bag welding parts 7 on both side edges, a storage chamber 8 is defined between the front and back film parts. It has an opening 9 of the storage chamber at one end. In addition, the bag body 2 constitutes the front and back film parts 5 and 6 by two films, and both films are welded at the bottom part 4,
You may comprise by forming the bag welding part 7 on both edges.

In the illustrated example, the back film portion 6 is extended from the opening portion 9 to integrally provide the sealing piece portion 10,
Although the pressure-sensitive adhesive tape 12 covered with the release tape 11 is provided on the sealing piece portion 10, the adhesive tape 12 provided with the release tape 11 may be provided at a corresponding position of the front film portion 5. . Furthermore, the sealing piece 10 may not be provided in the bag body 2.

The front and back film portions 5 and 6 preferably include an opaque portion 2a formed of a printing surface such as printing ink, and a transparent or semitransparent window portion 2b having no printing surface. It is preferable to make the inside of the storage chamber 8 visible. At this time, belt-like background portions 2c having no printing surface are formed on both side edges of the front and back film portions 5 and 6 which form the bag welding portion 7 of the bag body 2.

The adhesive sheet 3 comprises a film sheet 13 made of the same kind of synthetic resin that can be welded to the back film portion 6 of the bag body 2, and a pressure sensitive adhesive or a pressure sensitive adhesive is applied to the back surface of the film sheet 13. Adhesive layer 14 made of heat-sensitive adhesive
And a release sheet 15 that covers the adhesive layer 14 is provided. As the release sheet 15, a synthetic resin film subjected to a release treatment with a silicon film or the like, or a paper sheet subjected to a release treatment with a silicon film or the like can be used. In the case of the illustrated example, the adhesive layers 14 and 14 are provided at intervals in the upper area and the lower area of the back surface of the film sheet 13, but the adhesive layer is formed on the entire back surface of the film sheet 13. 14 may be provided. At that time, the adhesive layer 14 may be formed in a solid pattern, but may be formed in a striped pattern, a lattice pattern, or a dot pattern.

With the back film portion 6 of the bag body 2 superposed on the film sheet 13 of the adhesive sheet 3 and laminated, the film sheet 13 and the back film portion 6 are located at both side edges of the bag body 2.
The sheet welding portion 16 for mutually welding the sheet welding portion is formed, and the weak welding layer 17a and the peeling layer 17b are interposed between the film sheet 13 and the back film portion 6 in the sheet welding portion 16.

The weakly welded layer 17a can be formed by, for example, subjecting the surface of the film sheet 13 to corona discharge treatment or coating thin silicon.
Such a weakly welded layer 17a may be provided on the entire surface of the film sheet 13, or may be provided in a band shape along the sheet welded portion 16. When the weak welding layer 17a is not provided, the film sheet 13 and the back film portion 6 are welded to each other in the sheet welding portion 16 in a non-separable manner.
Since a is provided, the film sheet 13 and the back film portion 6 can be welded in a state in which they are "mildly" prevented from being welded to each other. The welding in a state in which the welding is "mildly" means that after welding, the back film portion 6 can be peeled off from the film sheet 13 with "strong force", without rupturing the sheet or the film. This means a state where the weakly welded layer 17a can be peeled off.

The release layer 17b can be formed by coating the surface of the film sheet 13 with, for example, a transparent varnish or urethane-based ink. It is preferable to provide it, but it may be provided only at one of the upper end vicinity portion and the lower end vicinity portion. Therefore, the release layer 17
b is provided so as to overlap the weakly welded layer 17a. As a result, the film sheet 13 and the back film portion 6 are welded to each other at both ends or one end of the welded portion 16 along both side edges of the adhesive sheet 3 in a state in which the mutual welding is "severely" hindered. The welding in the state where the welding is "severely" hindered means that after the welding, from the film sheet 13 to the back film portion 6
Means that it can be peeled off with "weak force". That is, the force F2 required to peel off the peeling layer 17b is F1> F2 in contrast to the force F1 required to peel off the weakly welded layer 17a. In the illustrated example, the peeling layer 17b is laminated on a portion of the weakly welded layer 17a formed on the film sheet 13.
May be formed on the surface of the back film portion 6, or
It may be formed on both sides of the film sheet 13 and the back film portion 6, and in short, it may be provided between the film sheet 13 and the back film portion 6.

[How to Use Storage Bag] When using the storage bag 1 according to the above-mentioned embodiment and packing storage documents such as a warranty card and an instruction manual when packing electrical products and other products, a large number of them are required in advance. The storage documents are stored in each of the storage bags 1. That is, after the storage document is loaded into the storage chamber 8 through the opening 9 of the bag body 2, the release tape 11 is peeled off, and the sealing piece 10 is bent to move the adhesive tape 11 to the front film portion 5.
The storage document is sealed in the bag body 2 by adhering it to the corresponding position.

Storage bag 1 having storage documents stored in the bag body 2
When the adhesive sheet 14 is attached to an adherend 18 such as a cardboard box, the adhesive layer 14 exposed by peeling the release sheet 15 from the attaching sheet 3 can be adhered or attached to the adherend 18. good. As a result, as shown in FIG. 2A, the storage bag 1 in which the bag body 2 and the adhesive sheet 3 are integrated is attached to the adherend 18. Therefore, the sticking work only requires the peeling work of the release sheet 15 and the bonding work by the adhesive layer 14, and can be performed extremely quickly and efficiently. Then, in this state, the bag body 2 storing the storage documents is
The adhesive sheet 3 adhered to the adherend 18 is integrated by the sheet welding portions 16 on both side edge portions and therefore does not fall off.

When the user who purchases the product picks up the stored document when unpacking it, pulling the bag body 2 causes the sheet welding portion 16 to be peeled off, and the stored document can be obtained as shown in FIG. 2 (B). The stored bag body 2 is separated from the adhesive sheet 3. The bag body 2 and the adhesive sheet 3 have sheet welding portions 16 and 1 on both side edge portions.
Since a space can be formed freely between 6 and 6, the user's fingertip can be inserted between the bag body 2 and the adhesive sheet 3, and the bag body 2 can be easily pulled.

When the user inserts his / her fingertip between the upper end portion between the bag body 2 and the adhesive sheet 3 when peeling off the bag body 2, as shown in FIG. When the sheet is welded, the sheet welded portion 16 is easily peeled off by the peeling layer 17b in the upper end region. Therefore, when the bag body 2 is peeled from the adhesive sheet 3 in the upper end region, this serves as a guide for the subsequent peeling, and when the bag body 2 is continuously pulled, the weakly welded layer 17a is relatively easily peeled. In particular, when such a peeling layer 17b is not provided and the sheet welding portion 16 is formed in the upper end region only through the weak welding layer 17a, when the upper end portion of the bag body 2 starts to be pulled, the sticking is performed. While the adhesive layer 14 tends to peel off from the adherend 18 by pulling the sheet 3 at the same time, when the peeling layer 17b is provided, there is no risk of peeling off the adhesive layer 14 and the bag body 2 Only the adhesive sheet 3 can be easily peeled off with a weak force.

On the contrary, when the user inserts the fingertip from the lower end between the bag body 2 and the adhesive sheet 3 when peeling off the bag body 2, as shown in FIG. When the lower end of the sheet welding portion 16 is pulled, the sheet welded portion 16 is easily peeled off by the peeling layer 17b in the lower end region. Therefore, when the bag body 2 is peeled off from the adhesive sheet 3 in the lower end region, this serves as a guide for the subsequent peeling, and when the bag body 2 is continuously pulled, the weakly welded layer 17a is also peeled off relatively easily. Also in this case, as in the case described above, there is no risk of peeling the adhesive layer 14 at the start of peeling, and only the bag body 2 can be easily peeled from the adhesive sheet 3 with a weak force.

In this way, by pulling the bag body 2,
When the back film portion 6 of the bag body 2 is peeled off from the film sheet 13, the sheet welding portion 16 can be peeled off with an extremely weak force through the peeling layer 17b in the initial stage. Then, when the peeling is continued by pulling the bag body 2 continuously, the peeling at the portion of the peeling layer 17b is developed as a guide thereafter, and the peeling of the weakly welded layer 7a is facilitated.
After peeling off the bag body 2, the adhesive sheet 3 attached to the adherend 18 may be discarded as it is together with the adherend 18.

The bag body 2 peeled from the adhesive sheet 3 can be used as it is for storing or storing the stored documents. In the case of the illustrated example, the bag body 2 has a sealing piece 10 which can be opened and closed via a pressure-sensitive adhesive tape 12, and after the stored document is taken out from the bag body 2, the stored document is stored in the bag body 2 again. By doing so, it can be provided as a bag for storage or preservation.

[Embodiment of Method for Manufacturing Storage Bag] The storage bag according to the above embodiment is manufactured by the steps shown in FIG.

Although not shown in the drawing, the continuous strip-shaped adhesive sheet material 3x for forming the adhesive sheet 3 described above is not shown.
It is delivered from the wound roll and transferred in the longitudinal direction of the strip. That is, as described above, the adhesive sheet material 3x has the weak welding layer 17a and the peeling layer 17 on the surface of the film sheet 13.
b has a laminated structure in which the adhesive layer 14 and the release sheet 15 are laminated on the back surface, and is formed in a continuous strip shape.

Although not shown, the continuous strip-shaped bag material 2x for forming the bag body 2 is unwound from the wound roll and transferred in the longitudinal direction of the band. That is, the bag material 2x has the front and back film parts 5 and 6 formed by half-folding the film as described above, and the back film part 6 is provided with the sealing piece part 10 and the adhesive tape 12 with the release tape 11. And is formed into a continuous strip.

Therefore, in the process of continuous transfer, the adhesive sheet material 3x and the bag material 2x are made to face each other, and the bag material 2x is polymerized and laminated on the surface of the adhesive sheet material 3x to form the laminated strip 19. After that, the laminated strip 1
9 is intermittently transferred in the longitudinal direction of the belt. In the illustrated embodiment, the bag material 2x forms the background portion 2c at equal intervals in the strip longitudinal direction, and the opaque portion 2a and the window portion 2b are provided between the pair of background portions 2c and 2c. Skin part 2c
Is intermittently transferred according to the interval pitch.

When the laminated strips 19 to be intermittently transferred are stopped, a dividing line C orthogonal to the longitudinal direction of the laminated strips 19 is formed.
A bag welding portion 7 is formed by mutually welding the front and back film portions 5 and 6 of the bag material 2x along with, and the back film portion 6 and the film sheet 13 are formed via the weak welding layer 17a and the peeling layer 17b. Melt and weld. In the case of the illustrated embodiment, the dividing line C is along the background portion 2c of the bag material 2x, and is fused and welded along the center line of the background portion 2c. As a result, the sheet welding portion 16 including the background portion 2a is formed, and the storage bag 1 having a width dimension corresponding to the intermittent transfer pitch is obtained.

As described above, the step of forming the bag welding portion 7, the step of forming the sheet welding portion 16, and the step of cutting the laminated strip 19 are performed by one fusing step along the dividing line C. That is, if the laminated strip 19 is melt-cut along the parting line C with the melt-cutting blade, the front and back film parts 5, 6 are enough.
Simultaneously with the formation of the bag welding portion 7 which is fusion-welded to each other, the sheet welding portion 16 in which the film sheet 13 and the back film portion 6 are fusion-welded through the weak welding layer 17a and the peeling layer 17b is formed, and the release Laminated strip 1 including sheet 15
9 can be fused at the same time along the dividing line C. At this time, since the release sheet 15 is provided with a release treatment film such as a silicon film, the release sheet 15 and the film sheet 13 are not welded along the fusing line,
Even if they are welded, they are in a weakly welded state, which allows the release sheet 15 to be peeled off during later use.

Alternatively, instead of one fusing step, two steps of a fusing step along the dividing line C and a fusing step may be performed. That is, first, by pressing a heating means such as a heating plate along the dividing line C, the bag welding portion 7 in which the front and back film portions 5 and 6 are welded to each other on the laminated strip 19 and the film sheet 13. The sheet welding portion 16 in which the back film portion 6 is welded via the weak welding layer 17a and the peeling layer 17b is formed at the same time. Therefore, the bag welding portion 7 and the sheet welding portion 16
A band-shaped welding line including is formed in the width direction of the laminated band-shaped body 19 along the background portion 2c. After that, the storage bag 1 is obtained by fusing the laminated band-shaped body 19 with the fusing blade along the dividing line C on the band-shaped welding line.

[0031]

EFFECT OF THE INVENTION Conventionally, when a bag containing a storage document is attached to an adherend such as a corrugated cardboard box, an adhesive tape such as cellophane tape is fed from the roll for a predetermined length and cut and attached. According to the present invention, the release sheet 15 is peeled from the adhesive sheet 3 of the storage bag 1 in which the storage documents are stored, whereas the attachment work of the bag body is complicated and inefficient. By simply adhering the exposed adhesive layer 14 to the adherend 18, the storage bag 1 in which the bag body 2 and the adhesive sheet 3 are integrated can be easily adhered to the adherend 18. Therefore,
The sticking work includes the peeling work of the release sheet 15 and the adhesive layer 1.
It is extremely quick and efficient because only the bonding work by 4 is sufficient. Moreover, the bag body 2 containing the stored documents is the adherend 1.
Since it is integrated with the adhesive sheet 3 adhered to the sheet 8 by the sheet welding portions 16 on both side edge portions, there is no risk of falling off, and there is no loss.

Even when the user who purchases the product picks up the storage document at the time of unpacking, conventionally, it is necessary to peel off the adhesive tape from the bag body, which may damage the bag body. On the other hand, according to the present invention, the bag body 2 can be easily separated from the adhesive sheet 3 simply by strongly pulling the bag body 2. That is, the sheet welded portion 16 is detachably welded via the peeling layer 17b and the weakly welding layer 17a. Therefore, when the bag body 2 is peeled off, the user inserts the fingertip from the upper end portion or the lower end portion between the bag body 2 and the adhesive sheet 3 and pulls the bag body 2 to pull out the sheet welding portion 16
Is first easily peeled off by the peeling layer 17b. Thus, when the bag body 2 is peeled from the adhesive sheet 3 at the upper end portion or the lower end portion, this serves as a guide for later peeling, and if the bag body 2 is subsequently pulled, the weakly welded layer 17a becomes relatively easy. It is peeled off. Therefore, the bag body 2 can be easily separated from the adhesive sheet 3 by peeling off the sheet welding portion 16, and at this time, the adhesive layer 14 is peeled off from the adherend 18 or the bag body 2 is damaged. There is no such thing. As a result, it is convenient that the independent bag body 2 separated from the adhesive sheet 3 can be used as it is as a packaging bag for storing or storing the storage documents.

Further, according to the manufacturing method of the present invention, there is an effect that the manufacturing of the storage bag as described above can be automated and mass production is possible with a simple process.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a storage bag according to the present invention in a partial cross section.

FIG. 2 shows a method of using the storage bag according to the present invention, where (A) is a vertical cross-sectional view showing a state in which it is attached to an adherend, (B).
[Fig. 3] is a vertical cross-sectional view showing a state in which a bag is separated from an adhesive sheet adhered to an adherend.

FIG. 3 shows an initial stage of peeling the bag body from the adhesive sheet stuck to the adherend in the storage bag of the present invention. (A) shows the case where the bag body is pulled and peeled from the upper end portion. FIG. 4B is a vertical cross-sectional view showing the action, FIG. 6B is a vertical cross-sectional view showing the action when the bag body is pulled and peeled from the lower end portion, and FIG.

FIG. 4 is a perspective view showing a method of manufacturing a storage bag according to the present invention.

[Explanation of symbols]

1 storage bag 2 bags 2x bag material 3 Adhesive sheet 3x adhesive sheet material 5 Front film section 6 Back film part 7 bag welding part 13 film sheet 14 Adhesive layer 15 Release sheet 16 Sheet welding part 17a Welding layer 17b Release layer 18 Adherend 19 Laminated strip

Claims (2)

[Claims] 1. A storage bag to be attached to an adherend such as a corrugated cardboard box in which storage documents such as a warranty are stored, the storage bag including a laminated bag body and an adhesive sheet, wherein the bag body is at least It is composed of synthetic resin front and back film parts welded on both side edges, the adhesive sheet is composed of a synthetic resin film sheet provided with an adhesive layer on the back surface, and is polymerized on the back film part of the bag body. And a welding portion integrally welded to both side edges of the bag body, wherein the film sheet of the adhesive sheet slightly interferes with the back film portion along the welding portions of both side edges. A weak welding layer is provided to allow the film sheet to be welded in a closed state.Furthermore, the weak welding layer is located at at least one of the upper end vicinity portion and the lower end vicinity portion of the film sheet to further weld the film sheet to each other. Severely disturbed A storage bag, characterized in that it is provided with a peeling layer for welding in a closed state. 2. A method of manufacturing a storage bag which is attached to an adherend such as a corrugated cardboard box in which storage documents such as a guarantee certificate are stored, and a synthetic method in which an adhesive layer coated with a release sheet is provided on the back surface. A step of transferring a continuous strip-shaped adhesive sheet material made of a resin film sheet in the longitudinal direction of the strip, and a continuous strip bag material made of a synthetic resin film having front and back film parts which are mutually polymerized in the longitudinal direction of the strip. The step of transferring and the step of forming a laminated strip by polymerizing the back film part of the bag material on the surface of the adhesive sheet material, the surface of the film sheet constituting the adhesive sheet material, A weak welding layer facing the back film portion is provided in advance, and the peeling layer is located at at least one of the upper end vicinity portion and the lower end vicinity portion of the film sheet and overlaps with the weak welding layer. It is provided, by forming a bag body provided with an adhesive sheet on the back side by welding and fusing the laminated band body along a dividing line orthogonal to the longitudinal direction of the band and both side edges of the bag body and the adhesive sheet. A welded portion integrally welded to the adhesive sheet, and the adhesive sheet and the back film portion are welded along the welded portion via a weakly welded layer, and the adhesive sheet is placed at least at one end of the welded portion. A method of manufacturing a storage bag, which comprises welding a sheet and a back film portion via two layers of a weak welding layer and a peeling layer.