JP2002362585A - Product packaging bag with header and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a product packaging bag 10 whose rigid header part 20 is not harmful and the top edge of the inside space of whose bag part 30 is partitioned sturdily enough. SOLUTION: A header part 20 is formed by integrally welding the top extending part of a front film 31 and the top extending part of a back film 32 wholly on the front face and the back face of a rigid padding material 40. The front film 31 and the back film 32 are mutually welded below the bottom edge 40a of the material 40 for forming a welded fixing line 50 regulating the top edge of the inner space of a bag part 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product packaging bag with a header and a method for manufacturing the same.

[0002]

2. Description of the Related Art As a packaging bag capable of storing and effectively displaying small products, there is a product packaging bag with a header. The product packaging bag with a header has a header portion and a bag portion connected below the header portion, and a hook is formed in the header portion. As the display device, a display device in which a plurality of display bars protrude from a vertical display wall is used,
With the hook hooked on the display bar, the above-mentioned packaging bag in which goods are stored is displayed.

[0003] In the state where the entire packaging bag is hung on a display bar via a hook formed on the header portion,
The rigidity is increased by using a relatively hard core material so as not to be deformed by the weight of the product. Therefore, if no consideration is given, there is a concern that an injury may occur when a fingertip touches a corner of the header portion.

[0004] In some cases, the core material for providing rigidity of the header portion is extended to the bag body as described above to provide rigidity to the entire bag. In this case, the formation of the welding fixing line defining the upper edge of the internal space of the bag needs to be performed by mutually welding the film forming the bag and the core material. However, as described above, since the core material is thicker than the film forming the bag because it provides rigidity, it gives sufficient heat welding strength to the welded portion forming the welding fixed line. It is difficult.

The present invention has been conceived in view of the above circumstances, and there is no fear of injuries due to the rigid header portion, and the upper edge of the inner space of the bag can be sufficiently provided. It is an object of the present invention to provide a product packaging bag with a header that can be partitioned with a high strength and a method for manufacturing the same.

[0006]

DISCLOSURE OF THE INVENTION In order to solve the above problems, the present invention employs the following technical means.

That is, a commodity packaging bag provided with a header according to the first aspect of the present invention has a rigid header portion, and a front film and a back film which are connected below the header portion and are provided. A bag with a header formed by welding at least both side edges of the front film and the back film, wherein the header portion includes an upper extending portion of the front film and the The upper extension of the back film is formed by integrally welding the entire surface and the back surface of the rigid core material, and the front film and the back film,
It is characterized in that a weld fixing line defining the upper edge of the internal space of the bag is formed by mutually heat-welding below the lower edge of the core material.

A front film and a back film are entirely and integrally welded to the front and back surfaces of the core material. Therefore,
In the header portion, a through hole through which a display bar is inserted as described later, or a cut groove for forming a hook is punched and formed, and a convex arc portion is punched and formed at both ends of the upper edge. At the punched edge, it is possible to avoid that the core material and the front and back films are separated and the appearance is deteriorated. Further, in the header portion, the front film or the back film that is entirely welded to the core material is integrated with the front film or the back film that forms the bag portion, so that the front film or the back film that constitutes the bag portion is formed. From the back film to the front film or the back film welded to the header portion, it is possible to express a pattern printed integrally.

Further, the welding fixing line for defining the upper edge of the inner space of the bag portion is formed by thermally welding the front film and the back film below the lower edge of the core material. Therefore, the front and back films can be firmly fixed to each other with a small amount of heat, and the upper edge of the internal space of the bag can be clearly defined.

[0010] Further, since there is a small portion between the core material of the header portion and the welding fixing portion, the front and back films are not fixed to each other, this portion is easily bent. And the state where the header portion is folded with respect to the bag portion can be easily obtained. This makes it easy to fold the header part on the back side of the bag and display it, for example, when displaying on an exhibition stand instead of hanging display using hooks, which saves display space Is done. Further, the package can be compactly packed with the header section folded in the bag section.

In a preferred embodiment, the header portion is formed with a hole through which the display bar is inserted or a cut groove for forming a hook to be hooked on the display bar.

In a preferred embodiment, a punched-out convex arc portion is formed at both ends of the upper edge of the header portion. According to such a configuration, sufficient rigidity can be given to the header portion, and an appropriate hanging display can be performed. On the other hand, since the corner portion of the header portion is rounded, a finger or the like touches and is injured. Don't worry.

[0013] In a preferred embodiment, the header portion has a narrow portion on the upper side thereof, the width being smaller than the width of the bag portion. According to such a configuration, the side edge of the header portion can be formed by punching at the same time as the convex arc portion, and the degree of freedom in the shape of the header portion is increased. As described above, since the front and back films of the header portion are integrally welded to the core material, the front and back films are not peeled off from the core material at the edge of the header portion, and the appearance does not deteriorate.

A method of manufacturing a product packaging bag with a header provided by the second aspect of the present invention is a step of transporting a front film material and a back film material in a state where upper edges are connected to each other by a connecting portion. And, between the front film material and the back film material, sandwich the strip-shaped core material so that the upper edge is along the connection portion, the surface film material on the surface of the plate-shaped core material,
A step of forming a header component by integrally fusing the back film material to the back surface of the plate-shaped core material, respectively; And a step of punching and forming a through-hole or a kerf for forming a hook in the header component, and the header component for each predetermined width region to be a header. And forming punched arc portions at both upper ends of each separation region.
A step of thermally fusing the front film material and the back film material at predetermined intervals to separate them into unit packaging bags.

According to such a method, the above-described merchandise packaging bag with a header according to the first aspect of the present invention can be efficiently manufactured. The product packaging bag with the header manufactured in this way has various advantages as described above.

[0016] Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the drawings.

[0017]

Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

As shown in FIGS. 1 to 4, the product packaging bag 10 with a header has a header portion 20 having a relatively rigid upper portion, and is connected to the header portion 20 downward. , A bag part 30.

The bag 30 has a front film 31 and a back film 32 made of, for example, a transparent relatively soft synthetic resin film. The front film 31 and the back film 32 have the same width, and are formed into a bag shape whose lower side is opened by welding the both side edges 31a. This welding can be achieved by simultaneously cutting and welding the film material by applying a predetermined hot plate in a state where the front film material and the back film material are stacked as described later.

In this embodiment, the front film 31
As a result, an extended portion 31A that extends further below the lower end of the back film 32 is formed.
Sealing means 33 is provided by attaching a double-sided tape or applying an adhesive material to the inner surface side. When the extension 31A is folded and pressed onto the back film 32, the sealing means 33 causes the extension 31A to
The lower part of the bag part 30 can be sealed by adhesively fixing the upper part.

The header section 20 includes front and back films 31 and 3
The upper extension portions 31B and 32B of the front film 31 and the back film 32 are entirely and integrally welded to the front and back surfaces of a synthetic resin plate core material 40 formed to be thicker than 2 and given rigidity. It is formed by this. This can be achieved by applying heat in a state where the core material 40 is sandwiched between the front film material and the back film material.

In this embodiment, as shown in FIG. 2, the front film 31 and the back film 32 are integrally connected at the upper edge of the header section 20. That is, a series of the front film 31 and the back film 32 in this embodiment is used by folding at a portion corresponding to the upper edge of the header section 20.

In this embodiment, the width of the header portion 20 is smaller than the width of the bag portion 30, and both ends of the upper edge of the header portion 20 have convex arc portions 20.
a is formed. The convex arc portion 20a or both edges 20b continuous with the convex arc portion 20a can be easily formed by punching.

The header 20 further includes a hook 21a.
Are formed. The cut groove 21 has, for example, a shape extending in a J-shape from the upper edge of the header portion 20, whereby the tip portion of the J-shape functions as a hook portion 21 a for hooking the display bar. This cut groove 21 can also be easily formed by punching.

In the present invention, a welding fixing line 50 for welding the front film 31 and the back film 32 to each other to define the upper edge of the inner space of the bag portion 30 is formed by the lower edge 40 a of the core member 40. It is formed at a position below.
The welding fixing wire 50 is made up of the front film 31 and the back film 3.
2 can be formed by a known method of pressing each other while applying heat at a predetermined linear portion.

In the merchandise packaging bag 10 having the above configuration, the header portion 20 is formed by integrally welding the front film 31 and the back film 32 to the front and back surfaces of the core material 40. Even if the convex arc portion 20a or the side edge portions 20b are formed by punching, the appearance of the core member 40 and the front and back films 31, 32 does not deteriorate due to separation. Further, since the convex arc portions 20a are formed at both ends of the upper edge of the header portion 20, it is less likely that a finger touches a corner portion of the relatively rigid header portion to cause an injury.

The front and back films 3 forming the bag portion 30
Since the upper extension portions 31B and 32B of the first and second 32 are welded to the front and back surfaces of the core member 40 to form the header portion 20, a pattern printed integrally with the bag portion 30 can be represented.

The welding fixing wire 50 is made of the front and back films 31 and 3.
Since the two are directly welded to each other, the front and back films 31, 32 can be firmly fixed to each other with little heat, and the upper edge of the internal space of the bag portion 30 can be clearly defined. .

Further, since the welding fixing line 50 is formed below the lower edge 40a of the core member 40, the front and back sides of the core member 40 and the welding fixing line 50 are slightly formed. A portion where the films 31 and 32 are separated from each other is formed. Therefore, this portion functions as an easily bendable portion, and it is possible to easily obtain a state in which the header portion 20 is folded on the back side of the bag portion 30 as shown in FIG. Thereby, when this product packaging bag 10 is displayed on a horizontal display stand, the display space can be saved. Also, it can be packed compactly.

Next, an example of a method of manufacturing a product packaging bag with a header having the above configuration will be described.

As shown in FIG. 6, a thin film material having a predetermined width is transported in a folded state. As a result, the front film material 31 'and the back film material 32' are supplied in a state where their upper edges are integrally connected by the connecting portion. At this time, the width of the film material 31 'on the front side is set to be larger than the width of the film material 32' on the back side. This is for forming the sealing means 33 described above.

Next, as shown in FIGS. 6 and 7, the strip-shaped core material 40 'and the surface film material 31' are inserted while the strip-shaped core material 40 'is inserted inside the connecting portion. ,
The back film material 32 'is integrally welded (in FIG. 7,
Cross-hatched area). This is because the core material 4 is located between upper and lower rollers (not shown) having a predetermined width and heated.
0 'and the front and back film members 31' and 32 'can be easily achieved by continuously pressing them in a laminated state.

Next, as shown in FIG. 8, the welding fixing line 50 is formed. This can be easily formed by continuously pressing the front and back film members 31 'and 32' between the upper and lower narrow rollers (not shown) which are heated.

Next, as shown in FIG.
Is formed to form a groove 21. Further, the width of the header portion 20 is reduced and the convex arc portions 20a at both ends of the upper edge of the header portion 20 are formed. This can be easily done by punching.

If necessary, the surface film material 31 '
The sealing portion 33 is continuously formed by attaching a double-sided tape to the back surface side of the lower extension portion.

Finally, the front and back film materials 31 'and 32' are blown at predetermined intervals using a predetermined hot plate, that is, along the cutting line L in FIG. Cut out the bag 10. Due to this fusing action,
Both side edges 31a, 32a of the front and back films 31, 32 in each single packaging bag 10 are welded.

The order of the above steps is not limited to the above, and the order of the steps may be changed if necessary.

Of course, the scope of the present invention is not limited to the above-described embodiments, and various modifications within the scope of the claims are all included in the scope of the present invention.

In the header portion, in addition to a cut groove 21 for a hook, as shown in FIG. 10, a through hole 22 for passing a display bar is provided.
May be provided. This through hole can also be formed by punching.

The width of the header may be the same as the width of the bag. Further, the front and back films may be formed by folding the same film as described above or by using separate films with their upper edges welded together.

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment of a product packaging bag with a header according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1;

FIG. 5 is an explanatory diagram of the operation of the present invention.

6 is an explanatory diagram of a method of manufacturing the product packaging bag with a header shown in FIG. 1;

FIG. 7 is an explanatory diagram of a method for manufacturing the product packaging bag with a header shown in FIG. 1;

8 is an explanatory diagram of a method of manufacturing the product packaging bag with a header shown in FIG.

9 is an explanatory diagram of a method of manufacturing the product packaging bag with the header shown in FIG.

FIG. 10 is a partial front view of another embodiment of a product packaging bag with a header according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Packaging bag with header 20 Header part 20a Convex arc part 20b Edge part (of header part) 21 Cut groove 21a Hook 22 Through hole 30 Bag part 31 Front film 31a Edge (of front film) 31A Lower extension part (front film) 31B Upper extension (of front film) 32 Back film 32a Edge (of back film) 32B Upper extension (of back film) 33 Sealing means 40 Core material 40a Lower edge (of core material) 50 Welding fixing line

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B65D 75/20 B65D 75/20 F-term (Reference) 3E064 AA05 BC18 HL02 HL03 HL10 HT07 3E067 AA11 AC01 BA15A BB14A BC04A EA05 EB17 EE15 FA01 FC01 3E075 AA12 BA42 CA02 DB12 DB16 DB27 DD12 DD43 DD47 DE07 GA05

Claims (5)

[Claims] 1. A header section having rigidity and a front film and a back film which are connected to a lower portion of the header section and are formed by welding at least both side edges of the front film and the back film. A product packaging bag with a header, the header portion having an upper extending portion of the front film and an upper extending portion of the back film on the front and back surfaces of a rigid core material. The front film and the back film are heat-welded to each other below the lower edge of the core material, thereby forming the upper edge of the inner space of the bag portion. A product packaging bag with a header, wherein a prescribed welding fixing line is formed. 2. The product packaging with a header according to claim 1, wherein the header portion is formed with a hole through which a display bar is inserted or a cut groove for forming a hook hooked on the display bar. bag. 3. The product packaging bag with a header according to claim 2, wherein a convex arc portion formed by punching is formed at both ends of an upper edge of the header portion. 4. The bag for packaging a product with a header according to claim 3, wherein the header portion has a narrow portion on an upper side thereof, the width being smaller than the width of the bag portion. 5. A step of transporting the front film material and the back film material in a state where the upper edges are connected to each other by a connecting portion, and the upper edge is connected between the front film material and the back film material. The strip-shaped core material is sandwiched along the part, the front film material is fused to the surface of the plate-shaped core material, and the back film material is fused to the back surface of the plate-shaped core material. A step of forming a portion, a step of linearly welding and fixing the front film material and the back film material below the lower edge of the strip-shaped core material, and a through hole, or A step of punching and forming a kerf to form a hook, and a step of punching and forming convex arc portions at both upper ends of each separation area while separating the header constituent portion into predetermined width areas to be headers. The front film material and the back film material are Characterized in that it comprises a step of separating the unit packing bag is thermally fused to each width, a method of manufacturing a header with goods packaging bag.