JPH11105815A - Packaging member, packaging method for goods or the like, and method for adhering plastic sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce warp and twisting or the like and facilitate an opening of a sealed part when the goods are to be taken out. SOLUTION: This packaging member is constructed such that the two plastic sheets 1 and 2 are overlapped from each other to store the goods A or the like in the packaging member and at least one of the sheets is formed with a storing section 5 where the goods A or the like can be stored. The overlapped sheets 1 and 2 are adhered with the end edge 1a of one sheet 1 being melted and adhered to the other sheet 2 by a laser beam.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for wrapping a package, a product, and the like, and a method for bonding a plastic sheet. More specifically, the present invention relates to a package for wrapping a product, such as daily necessities, batteries, stationery, and the like. And a method for packaging the same, and a method for bonding a plastic sheet that can be used at that time.

[0002]

2. Description of the Related Art Conventionally, various packages of this type have been proposed. For example, as shown in FIG. 14, a storage portion 5 'for storing goods is formed and both sides are formed on the back surface. A plastic sheet 1 'having a sliding portion 1a' curved to the side, and a paper mount 2 'having both sides printed and printed on the front and back sides with advertisements, explanatory notes, etc. Are known. The wrapping body is for packaging a product by storing the product in the storage portion 5 'of the sheet 1', and then inserting the mount 2 'through the slide portion 1a', and generally wrapping the product. Sheet 1 'and backing sheet
2 'is fixed by a stapler or the like. (Conventional example 1)

[0005] As shown in FIG. 15, a mounting sheet 2 ′ having a heat-fusible resin applied to the surface thereof is placed on a plastic sheet 1 ′ in which a storage section 5 ′ is molded, A package in which the sheet 1 'and the backing sheet 2' are adhered by heat sealing the peripheral portion 1a '' of 1 '(the outer peripheral portion of the storage portion 5') is also known. (Conventional example 2)

Further, as shown in FIG. 16, a plastic top sheet 1 'in which a storage portion 5' is molded, and the sheet
There is also known a package comprising a peripheral portion 1a '' of 1 ′ and a plastic back sheet 2 ′ adhered on the inner surface, and a paper 3 ′ made of paper interposed between both sheets 1 ′, 2 ′. is there. In the package, the product is stored in the storage section 5 ', the printing paper 3' and the back sheet 2 'are placed thereon, and the inner surfaces of the peripheral portions 1a''of the sheets 1', 2 ' It is welded by ultrasonic wave, heater heating or the like. (Conventional example 3) Also, a package body having no printing paper 3 'and printed on the back sheet 2' is known. In this package, both sheets 1 'and 2' are overlapped in the same manner as in Conventional Example 3, and the inner surfaces of the peripheral portion 1a '' are welded together by high frequency or the like. (Conventional example 4)

[0005]

However, in the package of the prior art 1 described above, the sheet 1 'and the backing sheet 2' are fixed by a stapler or the like so that the sliding of both is prevented. Has a problem that the stapler or the like is exposed on the surface side of the sheet 1 'and reduces the commercial value. In addition, it is necessary for the purchaser to remove the stapler when taking out the product, and the removal operation is complicated.

Further, in the package of the conventional example 2, since the entire periphery 1a '' of the storage portion 5 'of the sheet 1' is bonded by heat sealing, the sheet 1 'is bonded by this heat sealing.
In addition, there has been a problem that warpage, dents, waving, and the like are easily generated. In addition, since the sheet 1 'and the backing sheet 2' are adhered to the entire periphery 1a '' of the storage portion 5 ', it is necessary to remove the entire adhesive surface when opening, and the opening operation is complicated.

Further, the packages of Conventional Examples 1, 2 and 3 are:
In both cases, plastic and paper products are used, so that when they are disposed, they need to be collected separately for recycling of plastics.

[0008] The packages of Conventional Examples 3 and 4 are made of a sheet.
Since the entire periphery 1a ″ (about 3 to 10 mm in width) of the 1 ′ housing portion 5 ′ is welded by high frequency, ultrasonic waves, heater heating, or the like, there is a disadvantage that warpage or the like is generated at this time, and particularly relatively This was remarkable when a thin sheet was used. Furthermore, in order to completely weld the inner surfaces of the peripheral edges 1a '' of the sheets 1 ', 2' by high frequency or the like, the entire adhesive surface of the sheets 1 ', 2' must be separated (peeled) when opening. And the opening operation was complicated. In addition, there is a problem that the welded portion is seen from the surface side of the sheet 1 ', which impairs the appearance of the package.

In particular, in the case of the package of the conventional example 3, if the printing paper 3 'is placed on the sheet 1' in a shifted state at the time of packaging, then the peripheral portion of the printing paper 3 'is welded to the back sheet 2'. However, there was also a problem that it was not performed properly.

Further, in the package of the conventional example 4, since the inner surfaces of the sheets 1 'and 2' are welded to each other by high frequency or the like, it is not possible to perform printing on the bonded portion of the back sheet 2. Further, there is also a problem that a displacement occurs when the sheets 1 and 2 are overlapped with each other, and when the printing surface is located at the bonding portion, welding is not performed accurately.

Accordingly, the present invention has been made to solve such a problem, and there is little warping, twisting, etc., and it is easy to open when taking out a product or the like, a packaging method therefor, and a plastic sheet. It is an object to provide a bonding method.

[0012]

Means for Solving the Problems The present invention has been made to solve the above problems, and a package according to the present invention comprises:
A packaging body in which at least one of the sheets 1 is formed with a storage part 5 capable of storing the product A or the like so that the plastic sheets 1 and 2 are overlapped with each other and the product A or the like is stored therein. The sheets 1 and 2 are characterized in that the edge 1a of one sheet 1 is welded and adhered to the other sheet 2 by a laser beam.

[0013] The package having the above structure is provided with one sheet.
Only the narrow part of the edge 1a of the sheet 1 is welded to the other sheet 2 and the sheets 1 and 2 are adhered to each other.
2 can be separated with a small force, and the stored product A or the like can be easily taken out.

Further, the packaging method according to the present invention is a packaging method for obtaining a package having the above-mentioned structure. Specifically, at least one of the packaging sheets is made by laminating and adhering plastic sheets 1 and 2 to each other. Storage section molded into sheet 1
5 is a method of packaging goods and the like in which goods A and the like are stored and packaged. After the goods A and the like are stored in the storage part 5, the edge 1a of one packaging sheet 1 is brought into contact with the other sheet 2. Then, the edge 1a is welded by a laser beam to form a sheet.
It has a configuration in which 1, 2 are bonded together.

In the package obtained by such a packaging method, since the sheets 1 and 2 are adhered to each other at the edge 1a of the sheet 1, the entire peripheral surface as in the conventional examples 2 to 4 is not used. Adhesion is not required, and warpage, twisting, etc. are unlikely to occur during adhesion.

The method for bonding plastic sheets according to the present invention is a method for bonding plastic sheets (1, 2), wherein the edge (1a) of one sheet (1) is attached to the other sheet (2). ), The edges (1a) are welded by a laser beam, and the sheets (1, 2) are adhered to each other.

Another object of the present invention is to bond the sheets 1 and 2 by laminating the plastic sheets 1 and 2 and fusing and welding the superposed sheets 1 and 2 by a laser beam. According to such a packaging method, the sheets 1 and 2 can be fused and welded at the same time, and it is not necessary to cut the sheets 1 and 2 in advance as a step before welding.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment> Hereinafter, a first embodiment of the present invention will be described. First, a pair of sheets constituting a package will be described.

In this embodiment, as shown in FIG. 1, the pair of sheets 1 and 2 are composed of a front sheet 1 and a rear sheet 2 which are front when a product is displayed and sold. The shape is provided. Where each sheet 1,2
Is formed in a single layer or multiple layers from a heat-moldable material made of a synthetic resin such as vinyl chloride, polystyrene, polyethylene terephthalate, and polycarbonate. The thickness of the sheet is determined depending on the size of the product to be packaged and the like, but is usually about 0.1 to 1.0 mm.

A printed surface 2b on which printing and printing are performed is provided on the front and back surfaces of the sheet 2 on the back surface side, and a step portion 4 having a rectangular shape in a plan view is formed at the center thereof. The step 4
Is formed by heat molding after the formation of the printing surface 2b, and the inside of the step portion 4 is configured as a storage portion 5 capable of storing products.

The sheet 1 on the front side has a concave portion 6 and a dome portion 7 formed by heating and molding a transparent sheet. The concave portion 6 is formed so as to protrude toward the front surface so as to be fittable with the step portion 4, and the dome portion 7 is formed so as to protrude further from the concave portion 6 toward the front surface. Thus, the dome portion 7 is also configured as the storage portion 5. In addition, the distance between the recess 6 and the side edge 1a of the sheet 1 on the front side is
Is provided at the same distance between the side edge 2a and the step portion 4 so that when the concave portion 6 and the step portion 4 are fitted together and the two sheets 1 and 2 are overlapped, the side edges 1a and 2a of the two It is provided to be.

In the vicinity of the upper edges of the sheets 1 and 2 on the front and back sides, holes 8 for hanging are formed at positions corresponding to the sheets 1 and 2.

Next, a method of wrapping the product A with the sheets 1 and 2 will be described.

First, as shown in FIG. 2A, the product A is placed in the storage portion 5 of the sheet 1 on the front side, and the step portion 4 and the concave portion 6 are fitted to each other. Fig. 3
As shown in (a), the side edges 1a, 2a of both sheets 1, 2 are brought into contact with each other.

Then, as shown in FIG. 3B, the vicinity of the side edges 1a and 2a of the sheets 1 and 2 which are overlapped is held from the front and back by a holding device 21.
Side edges 1a and 2 of the sheets 1 and 2
Laser light is irradiated to a by a laser light irradiation device 20, and the contacted side edges 1a, 2a are heated and welded in a very short time to bond the two sheets 1, 2. The side edges 1a, 2
The welding of a can be performed continuously from the upper end side to the lower end side of the sheets 1 and 2, but a plurality of times at predetermined intervals so that the welded portions 12 are formed intermittently as shown in FIG. It is preferable to perform welding. Further, as the laser light, an appropriate one such as a carbon dioxide laser, a YAG laser, and a glass laser can be used, but a carbon dioxide laser having an output of 40 W or less is preferable.

The package in which the product is packaged by the above method is hung at the store or the like using the hole 8 at the upper end, and is displayed and sold. The product A can be recognized from the surface side and the conventional example is used. As shown in Nos. 3 and 4, the welded portion does not appear on the entire peripheral portion, and is excellent in aesthetic appearance.

Further, since the sheets 1 and 2 are welded at the narrow portions of the side edges 1a and 2a and the sheets 1 and 2 are bonded to each other, for example, the space between the sheets 1 and 2 is opened from the upper and lower edges that are not bonded and The two sheets 1 and 2 can be separated and opened, and the product A can be easily taken out. Particularly, when the welded portion 12 is formed intermittently, the opening operation is extremely easy. sell. As described above, since the welding of the side edges 1a and 2a is performed by irradiating a laser beam, unlike a conventional high frequency or the like, partial welding can be easily and reliably performed with a narrow width, and the appearance is beautiful. It is easy to form the part 12 intermittently.

Further, since the sheets 1 and 2 are bonded at the edges 1a and 2a, and the entire peripheral surface is not required to be bonded, warping, twisting, and the like hardly occur at the time of bonding.

Further, since the sheet 2 to be printed and printed is separate from the other sheet 1, by using an opaque sheet such as white, there is an advantage that it is not necessary to perform white printing or the like before printing. Have. Further, since the laser beam is applied and welded, even if the printing surface 2b is formed near the edge 2a of the sheet 2, the printing surface 2b is also melted and can be welded to the other sheet 1.

Further, since the step portion 4 and the concave portion 6 are fitted to each other, no dust or the like enters the accommodation portion 5 for accommodating the product A, and the sheet can be prevented from warping and waving.

<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and 6. First, a pair of sheets constituting a package will be described.
In addition, about the step part 4, the concave part 6, the dome part 7, and the hole 8,
Since the configuration is the same as that of the first embodiment, the description is omitted.

In the second embodiment, the front side sheet 1
Is wider than the sheet 2 on the back side as shown in FIG. Specifically, sheet 1 on the front side has
Folding pieces 9 are provided extending to both ends via the folding curve 10, and are provided so that the folding curve 10 is located outside the sheet 2 on the back side. In addition, the corners of the folded pieces 9 are cut off and cut off at the upper and lower ends.

The folding curve 10 is formed by engraving a perforation. In addition, the folding curve 10 can also be configured by making the wall thickness thinner than other parts in a groove shape or the like. In addition, the folding curve 10 is provided so as to be located outside the sheet 2 on the back side by 2 to 4 times the thickness of the sheet,
Even if the step portion 4 and the concave portion 6 are slightly misaligned at the time of heat molding or at the time of punching, it is configured so that it can be properly folded.

In the method of wrapping the product A with the sheets 1 and 2, first, the product A is placed in the storage portion 5 of the sheet 1 on the front side, and the step portion 4 and the concave portion 6 are fitted. Then, both sheets 1 and 2 are overlapped.

The sheet on the front side thus overlapped
Turn back the folded piece 9 of 1 to the back side, and
(The edge of the folded piece 9) is brought into contact with the back side of the sheet 2 on the back side. Then, the contact portion (the edge 1a of the sheet 1) is irradiated with a laser beam, and the side edge 1a is welded to the sheet 2 on the back side, so that the sheets 1 and 2 are adhered.

It is said that the package body in which the product is packaged by the above method can be recognized from the front side at the time of display and sale, and the welded portion as in the conventional examples 3 and 4 is not seen, so that the product is excellent in appearance. In addition to the advantages, since the folded portions 9 are folded back and the sheets 1 and 2 are laminated in three layers on both sides of the package, the edges are hardly damaged during transportation and sale. Having.

Further, even if a deviation or the like occurs when the storage portion 5 is formed by heating, the folding curve 10 is provided so as to be located outside the other sheet 2 so that the deviation can be absorbed and reliably. The two sheets 1 and 2 can be bonded to each other.

Further, since the folded piece 9 is notched at the upper end and the lower end, even if the folded curve 8 is formed to be inclined (displaced), the folded piece 9 is positioned on the front side. There is no expression.

<Other Embodiments> The first and second embodiments have the above-described configuration and have the above-mentioned advantages, but the present invention is not limited to these, and the design can be changed as appropriate. It is.

That is, in the above-described embodiment, the case where the sheets constituting the package body which are superimposed on each other are separately described has been described. For example, the sheet on the front side and the sheet on the back side are arranged via a folding line. The present invention is also applicable to a structure in which they are integrally connected, folded along a folding line, and overlapped with each other. However, by providing both sheets 1 and 2 separately, for example, a thick sheet is used as the sheet 1 in which the concave portion 6 and the dome portion 7 are formed, and a thin sheet is used as the sheet 2 in which only the step portion 4 is formed. The thickness of each of the sheets 1 and 2 can be changed, which is economical. In particular, since the printability is improved by making the sheet 2 to be printed thin, there is an advantage that the processing cost and the like can be reduced.

Even a package having no fitting portion such as the step portion 4 is within the intended range of the present invention. Further, even when a fitting portion that can be fitted to the other sheet 2 is formed on the sheet 1, the fitting portion is not limited to that provided adjacent to the storage portion 5, A step portion may be provided in the vicinity, and the inner peripheral wall surface of the housing portion 5 may be used as it is as a fitting portion.

In the above embodiment, one sheet 1 is transparent, and the other sheet 2 is opaque and has a printing surface 2b on which printing is performed.
Both sheets 1, 2 are transparent and both sheets 1, 2
It is within the intended scope of the present invention even if any of these is printed. Note that if both sheets 1 and 2 are transparent in the housing section 5, it is suitable when goods and the like can be recognized from the front and back surfaces, and are displayed and sold at stores.

In the above-mentioned embodiment, since it is composed only of the plastic sheets 1 and 2, when it becomes unnecessary,
It has the advantage that it is not necessary to separate and discard or collect the packaging material for recycling, but the invention is not limited to this. In addition, not only the product A but also printing paper such as a manual can be interposed in the storage section 5.

Further, in the above embodiment, the storage portion 5
Although a package comprising a pair of sheets 1 and 2 having the following and a method for packaging the same have been described, the method for bonding a plastic sheet according to the present invention is not used only when the product is packaged by the package, It can be used for bonding plastic sheets in various cases.

That is, in the method of bonding plastic sheets according to the present invention, for example, as shown in FIG. 7, one sheet body is bent into a square shape, edges are overlapped, and one edge ( The present invention can also be applied to a case where a box-shaped package is manufactured by welding the edge 1a of the sheet 1) to the other edge (sheet 2) by laser light.

As shown in FIG. 8, a plastic sheet 2 having a circular shape in a plan view and a peripheral portion curved downward is provided on a cylindrical body formed by winding a plastic sheet 2 in a cylindrical shape.
It can be used even when the bottom member made of is fixed. In this case, by welding the edge 1a of the sheet 1 forming the bottom member and the edge 2a of the sheet 2 forming the cylindrical body by laser light, the two sheets 1 and 2 are bonded to each other. It will be. In FIG. 8, in addition to welding the edges 1a and 2a of the sheets 1 and 2 from the outside of the cylinder, a contact portion of the sheets 1 and 2 from the inside of the cylinder (a curved portion of the sheet 1)
Are also welded by a laser beam.

Further, the method of bonding plastic sheets according to the present invention is not limited to the method of bonding the superposed sheets 1 and 2 to each other, and as shown in FIG. 9, the end surfaces of the edges 1a and 2a are applied to each other. The method of bonding the sheets 1 and 2 in contact with each other is also within the scope of the present invention. In FIG. 9, the end face of the edge 1a of one sheet 1 is abutted (contacted) with the end face of the edge 2a of the other sheet 2, and the edges 1a, 2a are welded.

Further, when the superposed sheets 1 and 2 are adhered to each other in the present invention, the present invention is not limited to welding the edges 1a and 2a to each other, as shown in FIG. 6 (b) or FIG. The present invention also encompasses a method in which the edge 1a of the sheet 1 is brought into contact with the surface of the other sheet 2 and the contact portion is welded.

Further, when the edges 1a, 2a are welded to each other, the vicinity of the edges of the superposed sheets 1, 2 is cut first, and the cut edges 1a, 2a are cut by a laser beam. It is also possible to make it weld. In particular,
First, the sheets 1 and 2 are superimposed on each other as shown in FIG. 10A, and the vicinity of the edge of the superimposed sheets 1 and 2 is cut off by the cutting means 22 as shown in FIG.
As shown in the figure, the cut ends 1a and 2a (edges) can be welded by laser light. Thereby, even when the edges do not match when the sheets 1 and 2 are overlapped, there is an advantage that the cut and formed edges 1a and 2a can be accurately welded to each other. . Therefore, when packaging a product or the like by superposing the pair of sheets 1 and 2 as in the above-described embodiment, when the sheets 1 and 2 are overlapped with each other due to a shift in the molding stage of the step portion 4 or the like, the edges are accurately aligned. Even if they do not match, each sheet 1, 2 of the final package
Edge 1a, 2a can be matched.

FIGS. 11 and 12 show a configuration in which the superposed sheets 1 and 2 are simultaneously melted and welded by the laser beam 20a. Specifically, the two sheets 1 and 2 superimposed on each other are transported in the direction of the arrow. Then, the holders 25 for the both ends of the sheets 1 and 2
(For example, a pressing roller), and irradiate the laser beam 20a to both sides of the sheet 1 or 2 in the transport direction. By this laser beam, both sides of the transferred sheets 1 and 2 are sequentially cut to a predetermined width, and both cut ends 1a and 2 of the cut sheets 1 and 2 are cut.
a is continuously welded in the longitudinal direction of the sheets 1 and 2 (along the line L shown in FIG. 11).

Thus, even if the edges do not match when the sheets 1 and 2 are overlapped, the sheets 1 and 2
The long edges 1a and 2a can be accurately welded to each other to form a long and tubular strip 26. Further, in the case of packaging a product or the like by superposing a pair of sheets 1 and 2 as in the above-described embodiment, when the sheets 1 and 2 are overlapped with each other due to a deviation in a molding stage of the step portion 4 or the like, the edge is accurately determined. Even if they do not match each other, each sheet 1,
The two edges 1a, 2a can be welded and matched at the same time.

In addition to irradiating the laser beam 20a from one direction of the sheets 1 and 2, it is also possible to irradiate the laser beam 20a from both the sheets 1 and 2 as shown in FIG. In such a case, for example, the laser beams 20a are respectively radiated obliquely from both sides of the sheets 1 and 2 toward the traveling direction of the sheets 1 and 2 while focusing on the overlapping surfaces of the sheets 1 and 2. Is preferred. The fusing and welding by the laser beam 20a may be single or three or more. It is also possible to control the laser beam intermittently.

In the present invention, as shown in FIG. 13, the entire edges 1a and 2a of the sheets 1 and 2 can be melted by a laser beam so that the edges 1a and 2a are rounded.

[0054]

As described above, the package according to the present invention has a beautiful appearance because the edges of one sheet are welded to the other sheet by laser light and the sheets are adhered to each other. When the narrow portion of the edge of the sheet is bonded, the bonded portion can be easily separated and opened, so that there is an effect that it is easy to open when taking out a product or the like inside.

Further, according to the packaging method of the present invention, since the sheet can be bonded only at the narrow portion of the edge, the conventional example 2
No bonding is required on the entire surface of the peripheral portion as described in Nos. 4 to 4, so that there is an effect that warping, twisting, and the like hardly occur during bonding.

The plastic sheet bonding method for bonding the plastic sheets by laminating the plastic sheets together and fusing and welding the superposed sheets by laser light can perform the fusing and welding of the sheets in the same step. As a result, the work of cutting and welding the sheet at a predetermined position can be speeded up.

[Brief description of the drawings]

FIG. 1 is a front view of each sheet according to a first embodiment of the present invention, (a) is a front view of a front side sheet, and (b) is a front view of a back side sheet.

FIG. 2 is a cross-sectional plan view of the package according to the embodiment, in which (a) is a cross-sectional plan view before sheet polymerization and (b) is a cross-sectional plan view after bonding.

FIG. 3 (a) is an enlarged sectional view of a main part before sheet polymerization,
(B) is a cross-sectional view of a main part in a bonded state, and (C) is a cross-sectional view of a main part showing a bonded state.

FIG. 4 is a side view of the package of the embodiment.

FIG. 5 is a front view of each sheet according to the second embodiment of the present invention, (a) is a front view of a front sheet, and (b) is a front view of a back sheet.

FIG. 6 is an explanatory view of the package of the embodiment, wherein (a) is a cross-sectional view, and (b) is an enlarged end view of a main part.

FIG. 7 is an end view of a package according to another embodiment.

FIG. 8 is an enlarged end view of a main part of a package according to another embodiment.

FIG. 9 shows a sheet bonding method according to another embodiment,
Is a plan view of the bonded sheet, and (b) is II of (a).
Line sectional view.

FIG. 10 shows a method of bonding sheets according to another embodiment,
(A) is an explanatory view of a state where sheets are superimposed, (B)
FIG. 3 is an explanatory view of a state where the vicinity of an edge is cut, and FIG. 3C is an explanatory view of a state where a sheet is bonded.

FIG. 11 shows a sheet bonding method according to another embodiment,
(A) is a plan view of the state where the sheets are superimposed, (b)
Is a sectional view immediately before the edge is melted and welded, (c)
FIG. 4 is a cross-sectional view after the vicinity of the edge of the sheet is blown and welded.

12A and 12B show a bonding method of the sheet, wherein FIG. 12A is a schematic view and FIG. 12B is a cross-sectional view.

FIG. 13 is an enlarged view of a main part of a sheet bonded by a bonding method according to another embodiment.

14A and 14B are explanatory views showing a package of Conventional Example 1, wherein FIG. 14A is a schematic perspective view and FIG. 14B is a cross-sectional plan view.

FIG. 15 is an explanatory view showing a package according to Conventional Example 2, wherein (a) is a schematic perspective view and (b) is a front view.

FIG. 16 is an explanatory view showing a package of Conventional Example 3, in which (a) is a front view and (b) is a cross-sectional plan view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Front side sheet, 2 ... Back side sheet, 1a, 2a ... Side edge (edge), 2b ... Printing surface, 4 ... Step part, 5 ... Storage part, 6 ...
Recess, 7 ... Dome, 8 ... Hole, 12 ... Welded part, A: Product

Claims (5)

[Claims] 1. A storage section in which at least one of the sheets (1) can store a product (A) or the like so as to store a product (A) or the like inside by stacking plastic sheets (1, 2). (Five)
Are formed into a package, and the overlapped sheets (1, 2) are formed such that the edge (1a) of one sheet (1) is the other sheet.
(2) A package characterized in that the package is welded and adhered by a laser beam. 2. A product (A) or the like is stored in a storage portion (5) formed on at least one of the packaging sheets (1) by laminating and bonding plastic sheets (1, 2) to each other. This is a method of packing products and the like to be wrapped, and after storing the product (A) etc. in the storage section (5), one of the wrapping sheets (1)
The edge (1a) of the sheet (1, 2) is brought into contact with the other sheet (2), the edge (1a) is welded by a laser beam, and the sheets (1, 2) are bonded to each other. Packaging method. 3. A method of bonding plastic sheets (1, 2), wherein an edge (1a) of one sheet (1) is brought into contact with the other sheet (2), A method for bonding plastic sheets, characterized in that (1a) is welded by a laser beam and the sheets (1, 2) are bonded to each other. 4. The plastic sheets (1, 2) are overlapped with each other, the vicinity of the edge of the overlapped sheets (1, 2) is cut, and the end of the cut sheet (1, 2) is formed. edge
4. The method according to claim 3, wherein (1a, 2a) is welded by a laser beam. 5. Bonding the sheets (1, 2) by laminating the plastic sheets (1, 2) and fusing and welding the superposed sheets (1, 2) by a laser beam. A method for bonding a plastic sheet.