JP2002362583A - Packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag for packaging an insecticide, a desiccant or an aromatic, etc., from which the insecticide, etc., does not volatilize during storage and which forms a ventilation part by opening the bag in using. SOLUTION: In forming this packaging bag, two quadrilateral laminated bodies comprising a base layer and a heat adhesive resin layer are superimposed with the heat adhesive resin layer inside for heat adhering facing two sides and for forming a side end heat adhesive part. At a position a predetermined distance inside from the end edge of facing two sides, a two folded tape shape ventilation base is inserted with the folded line inside in parallel with the side end heat adhesive part for heat adhering each end edge of the ventilation base to each facing laminated body. On the base layer of the laminated body between the side end heat adhesive part and the ventilation baseheat adhesive part, a straight perforation in parallel with the side end heat adhesive part is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an insect repellent, an aroma repellent, and a fragrance, which are excellent in gas barrier properties of a packaging bag during storage until use, and are provided with breathability by tearing and opening the packaging bag during use. The present invention relates to a packaging bag that can be used for packaging agents, desiccants, and the like.

[0002]

2. Description of the Related Art Conventionally, as a container of an insect repellent or the like which can be suspended and used, a mat or the like impregnated with a drug is stored in a hanging container made of a plastic molded product having a large number of ventilation holes, and the plastic container is filled with gas. A structure sealed with a packaging bag having excellent barrier properties is known. However, a container such as an insect repellent having such a configuration has a drawback that the cost is increased since the container is a double package consisting of a packaging bag and a plastic container.

[0003] In addition, as a packaging bag which can be used by storing an insect repellent or the like which is made to have air permeability by tearing the bag at the time of use, for example, Japanese Utility Model Laid-Open No. 57-1886.
No. 66, a permeable inner bottom portion is provided over the entire width of the bag body on the inner surface of the airtightly held bag body to divide the inside of the bag body into two parts, and the inner bottom member is provided below the inner bottom member. 2. Description of the Related Art A packaging bag in which a predetermined opening portion is provided at a lower portion of a certain bag body is known. However, the insect repellent bag of this configuration has a configuration in which the insect repellent is volatilized from the bottom of the bag, and has a disadvantage that the area where the insect repellent is volatilized is small and the insect repellent is difficult to volatilize, and the volatilization amount is reduced.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a gas bag having excellent gas barrier properties during storage, and to form a ventilation portion in a packaging bag by cutting off the laminate at both ends of the bag during use. An object of the present invention is to provide a packaging bag suitable for packaging insect repellents, desiccants, fragrances and the like.

[0005]

Means for Solving the Problems Two square-shaped laminated bodies each consisting of a base material layer and a thermo-adhesive resin layer are superposed with the thermo-adhesive resin layer inside, and two opposing sides are thermally bonded. A side end thermal bonding portion, ventilation means formed parallel to the side end thermal bonding portion at a position inside a predetermined dimension from two opposing edges, and orthogonal to the side end thermal bonding portion. The upper end thermal bonding portion and the lower end thermal bonding portion formed in the direction in which the package bag is cut. And a packaging bag suitable for storing and using insect repellents, desiccants, fragrances and the like.

[0006] In the above-mentioned packaging bag, the air-permeable means is formed by inserting a foldable tape-shaped air-permeable base material with the fold inside, and bonding the laminated body with the edges of the air-permeable base material facing each other. By adopting a configuration that is thermally bonded to the surface of the conductive resin layer, a ventilation portion can be formed by cutting and opening the side edge thermal bonding portions on both side edges of the packaging bag. Further, even when the powdery content is stored, no leakage occurs.

[0007] In the above-mentioned packaging bag, the ventilation means has a non-heat-bonded portion by having an intermittent heat-bonded portion having a non-heat-bonded portion formed by heat-bonding the front and back laminates. Since the ventilation means can be formed only by forming the intermittent heat bonding portion, the manufacturing process of the packaging bag can be simplified.

In the above-mentioned packaging bag, the base material layer of the laminate has a depth in the range of the thickness of the base material layer between the side end heat bonding portion and the ventilation means in parallel with the side end heat bonding portion. Opening the packaging bag by tearing the laminate linearly along the cut line by forming a linear cut line and forming a cutout at the upper end thermal bonding portion of the edge of the cut line. Can be. Further, since the score line is formed at a depth within the range of the thickness of the base material layer of the laminate, the gas barrier property of the laminate does not decrease.

In the above packaging bag, the base material layer of the laminate is formed by laminating a uniaxially stretched plastic film so that the stretching direction of the uniaxially stretched plastic film coincides with the tearing direction. With the configuration in which the notch is formed corresponding to the position, the laminate can be torn linearly from the notch location along the inside of the side end heat bonding portion and opened.

In the above-mentioned packaging bag, a hanging hole is formed at the center of the upper end thermal bonding portion, so that the packaging bag can be opened and a hook or the like can be passed through the hanging hole and hung. Can be.

[0011] In the above-described packaging bag, the hanging bag is attached to the upper end heat bonding portion, so that the packaging bag can be opened, and the hanging bag can be hooked on a bar or the like and used.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view showing a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along a line II in FIG. 1, FIG. 3 is a perspective view showing a state where the insect repellent container of the first embodiment is opened, and FIG.
3 is a sectional view taken along the line II in FIG. 3, FIG. 5 is a plan view showing the second embodiment of the present invention, FIG. 6 is a sectional view taken along the line II in FIG.
FIG. 7 is a plan view showing a third embodiment of the present invention, wherein 1 is a side end thermal bonding portion, 2 is an upper end thermal bonding portion, 3 is a lower edge thermal bonding portion, 4 is a permeable base material, and 5 is ventilation. 6, a notch, 7 is a notch line, 8 is a hanging hole, 9 is an intermittent heat bonding portion,
9 'is a non-thermally bonded portion, 10 is a suspending tool, 11 is a laminate, 12 is a base material layer, and 13 is a thermo-adhesive resin layer.

The first embodiment of the present invention is as shown in FIGS. As shown in FIG. 1, the planar shape is such that two square-faced laminates 11 each having a base material layer and a heat-adhesive resin layer are opposed to each other with the heat-adhesive resin layer 13 being on the inside. A side end thermal bonding portion 1 is formed on the side, and a tape-shaped air-permeable base material 4 folded in two to a position inside a predetermined dimension from the edge is inserted in parallel with the side end thermal bonding portion 1 with the fold inside. Then, the edges of the air-permeable base material 4 are heat-bonded and attached to the heat-adhesive resin layers 13 of the facing laminates 11 at the air-permeable base material heat bonding portions 5, respectively. A score line 7 is formed in the base material layer 12 of the front and back laminates 11 between the air permeable base materials 4, and an upper end heat bonding portion 2 and a lower end heat bonding portion 3 orthogonal to the side end heat bonding portion 1 are formed. A notch 6 is formed at a position corresponding to the cut line 7 at the end of the upper end thermal bonding portion 2, and a hanging hole 8 is formed at the center of the upper end thermal bonding portion 2. A configuration.

As shown in FIG. 2, the cross-sectional shape of the first embodiment in a direction perpendicular to the side end thermal bonding portion 1 is a two-sided laminated body 11
Is heat-bonded at both side end heat bonding portions 1, and a tape-shaped air-permeable base material 4 which is folded in two at a predetermined size inside from both ends is inserted with the fold inside, and the air-permeable The inside of the base material 4 is heat-bonded to the surface of the heat-bondable resin layer 13 of the laminated body 11 opposite to the fold at the air-permeable base material heat bonding portion 5 so that the inside of the gas-permeable base material 4 It has a partitioned structure, and has a depth within the range of the thickness of the base material layer 12 in the base material layer 12 of the laminate 11 between the side end heat bonding portion 1 and the air permeable base material heat bonding portion 5. In this configuration, a score line 7 composed of a scar is formed.

FIGS. 3 and 4 show a state in which the laminated body 11 is cut off from the notch 6 along the cut line 7 to open the side end thermal bonding portions 1 at both ends of the packaging bag of the first embodiment. As described above, the side surface of the packaging bag is surrounded by the air-permeable base material 4 inserted on both sides with the fold inside and the two laminated bodies 11 on the front and back, and the packaging bag is passed through the air-permeable base material 4. The inside and outside are ventilated. Assuming that the package in which the insect repellent and the like are stored inside the packaging bag of the first embodiment, the package is stored inside through the air-permeable base material 4 by tearing both sides of the package along the score line 7 and opening the package. Since the insect repellent is volatilized, a hook or the like can be used by hanging it through the hanging hole 8. Further, since the packaging bag is completely sealed until opened, it can be stored for a long time in a state where the insect repellent or the like is packaged. In addition, the air-permeable base material 4
The volatilization amount of the insect repellent and the like can be controlled by changing the width of the fold.

A second embodiment of the present invention is as shown in FIGS. As shown in FIG. 5, the two-sided rectangular laminate 11 having the base material layer 12 and the heat-adhesive resin layer 13 is overlapped with the heat-adhesive resin layer 13 inside, as shown in FIG. An intermittent thermal bonding portion having a non-thermal bonding portion 9 ′ formed by thermally bonding two front and back laminates at a position inside a predetermined dimension from the edges on both sides. 9 are formed in parallel with the side end thermal bonding portions 1 respectively.
A score line 7 is formed in the base material layer 12 of the front and back laminates 11 between the intermittent thermal bonding portion 9 and the upper thermal bonding portion 2 and the lower thermal bonding portion 3 orthogonal to the side thermal bonding portion 1. The upper end thermal bonding portion 2 is provided with a notch 6 at the end of the score line 7 and the upper end thermal bonding portion 2 has a hanging hole 8 formed at the center thereof. In the second embodiment, the ventilation portion can be formed only by heat-bonding the two laminates, instead of forming the ventilation portion by interposing the breathable tape as in the first embodiment. It is simpler and costs are lower.

The cross-sectional shape of the intermittent heat bonding portion 9 in the second embodiment in the direction perpendicular to the side edge heat bonding portion 1 is as shown in FIG. Part 1
In addition, an intermittent heat bonding portion 9 is formed at a position inside a predetermined dimension from both side ends, and the base material layer 12 of the laminate 11 is provided between the side end heat bonding portion 1 and the intermittent heat bonding portion 9. In this configuration, a score line 7 composed of scars having a depth within the range of the thickness of the base material layer 12 is formed.

A third embodiment of the present invention is as shown in FIG. 7. Instead of forming the hanging hole 8 in the center of the upper end heat bonding portion 2, a plastic hanging tool 10 is heat bonded at the upper end. The configuration is basically the same as that of the first embodiment except that it is adhered to the portion 2. In the first embodiment, a hook or the like is used by hanging it through the hanging hole 8, but in the third embodiment, the hanging tool 10 can be hung on a crosspiece or the like and used by hanging. . In addition, it is also possible to adopt a configuration in which a plastic hanging tool 10 is adhered to the upper end thermal bonding portion 2 of the packaging bag of the second embodiment. In addition, a clip-shaped part may be attached instead of the hanging tool 10, or a double-sided adhesive tape may be attached.

In the first to third embodiments, the base material layer of the laminate 11 is
A cut line 7 composed of scars having a depth within the range of the thickness of the base material layer 12 is formed in a straight line parallel to the side end thermal bonding portion 1, and the laminated body 11 is formed along the cut line 7. It is configured to tear open. Apart from this configuration, a two-layer configuration in which the base material layer of the laminate is composed of a biaxially stretched plastic film and a uniaxially stretched plastic film and laminated so that the stretching direction of the uniaxially stretched plastic film matches the tearing direction. Alternatively, a notch corresponding to the tearing start position may be formed at the edge of the upper end thermal bonding portion.
Also in this configuration, since the laminated body includes the uniaxially stretched plastic film, the laminated body is torn linearly along the inside of the side end heat-bonded portion from the notch and easily opened. be able to.

As the air-permeable base material 4, a heat-adhesive nonwoven fabric, a heat-adhesive film having holes, or the like can be used.
The heat-bondable nonwoven fabric is composed of a heat-bondable composite fiber having a low-melting resin as a sheath component and a high-melting resin as a core component, for example, high-density polyethylene / polypropylene, high-density polyethylene / polyester, polypropylene copolymer / polyester. Heat-adhesive nonwoven fabric using heat-adhesive (sheath / core) conjugate fiber, heat-adhesive nonwoven fabric composed of conjugate long fiber of copolymer polyester composition and high-melting polyester, heat-adhesive to mat composed of pulp fiber Heat-bonded nonwoven fabric impregnated and fixed with a binder, heat-bondable conjugate fibers are aligned, laminated to a predetermined basis weight, entangled, heat-treated, and heat-fused to fuse the fibers together. Non-woven thermo-adhesive non-woven fabric made by laminating non-woven fabric consisting of fibers containing high melting point thermoplastic resin on non-woven fabric, non-woven polyester spunbond Thermally adhesive nonwoven fabric or the like formed by laminating a linear low density polyethylene spunbonded nonwoven fabric can be used.
The basis weight of the heat-bondable nonwoven fabric is preferably about 30 to 50 g / m ² .

As the heat-adhesive film having holes, 2
Axial stretched polyethylene terephthalate (PET), biaxially stretched nylon (ON), biaxially stretched polypropylene (OP
P) and other biaxially stretched films and polyethylene, ethylene-
A perforated film in which holes are formed in a film in which a heat-adhesive resin such as a vinyl acetate copolymer, unstretched polypropylene, or an acrylic resin is laminated can be used. As the perforated film, a film in which a large number of pores are formed by piercing using a hot needle, a film in which holes of an arbitrary size are formed by punching using a mold, and the like can be used.

As the base layer 12 of the laminate 11, biaxially stretched polyethylene terephthalate (PET), silica-deposited biaxially stretched polyethylene terephthalate (VMPET), biaxially stretched nylon (ON), silica-deposited biaxially stretched nylon (VMON) A biaxially oriented film such as biaxially oriented polypropylene (OPP) or a laminate thereof can be used.
As the heat-adhesive resin layer 13, low-density polyethylene (LD
PE), linear low density polyethylene (LLDPE), medium density polyethylene (MDPE), high density polyethylene (H
DPE), ethylene-vinyl acetate copolymer (EVA),
Ionomer (IO), ethylene-acrylic acid copolymer (EAA), ethylene-methacrylic acid copolymer (EMA
A), ethylene-ethyl acrylate polymer (EEA),
Ethylene-methyl acrylate polymer (EMA), undrawn polypropylene (CPP), amorphous polyester (AP
ET), ethylene-vinyl alcohol copolymer (EVO
H), polyacrylonitrile (PAN) and the like can be used. Examples of the uniaxially stretched film to be laminated and used as the base layer include uniaxially stretched polyethylene, and uniaxially stretched polypropylene.

As a structure of the laminate, for example, VMPE
T / LLDPE, VMPET / CPP, VMON / LL
DPE, VMON / CPP, VMPET / EAA, VM
ON / EAA, VMPET / Uniaxially stretched film / LLD
PE, VMPET / uniaxially stretched film / CPP, etc. The structure of the perforated film is LLDPE / PET
/ LLDPE, CPP / PET / CPP, LLDPE /
ON / LLDPE, CPP / ON / CPP, etc.

[0024]

The present invention is formed by laminating two square-shaped front and back laminates each composed of a base material layer and a heat-adhesive resin layer, with the heat-adhesive resin layer inside, and heat-bonding two opposing sides. A side end thermal bonding portion, ventilation means formed parallel to the side end thermal bonding portion at a position inside a predetermined dimension from two opposing edges, and formed in a direction orthogonal to the side end thermal bonding portion. Since it is a configuration having the upper end thermal bonding portion and the lower end thermal bonding portion, by cutting and opening the side end thermal bonding portions on both sides of the packaging bag, it is possible to make the packaging bag permeable by the ventilation means. Thus, a packaging bag suitable for storing and using insect repellents, desiccants, fragrances and the like can be obtained.

In the above-mentioned packaging bag, the air-permeable means is a heat-bonded laminate in which the tape-shaped air-permeable base material folded in two is inserted with the fold inside, and the edges of the air-permeable base material are opposed to each other. By adopting a configuration that is thermally bonded to the surface of the conductive resin layer, a ventilation portion can be formed by cutting and opening the side edge thermal bonding portions on both side edges of the packaging bag. Further, even when the powdery content is stored, no leakage occurs.

In the above-described packaging bag, the ventilation means has an intermittent heat bonding portion having a non-thermal bonding portion formed by thermally bonding the front and back laminates, thereby having a non-thermal bonding portion. Since the ventilation means can be formed only by forming the intermittent heat bonding portion, the manufacturing process of the packaging bag can be simplified.

In the above-mentioned packaging bag, the base material layer of the laminate has a depth in the range of the thickness of the base material layer between the side end heat bonding portion and the ventilation means in parallel with the side end heat bonding portion. Opening the packaging bag by tearing the laminate linearly along the cut line by forming a linear cut line and forming a cutout at the upper end thermal bonding portion of the edge of the cut line. Can be. Further, since the score line is formed at a depth within the range of the thickness of the base material layer of the laminate, the gas barrier property of the laminate does not decrease.

In the above-mentioned packaging bag, the base material layer of the laminate is formed by laminating the uniaxially stretched plastic film so that the stretching direction of the uniaxially stretched plastic film coincides with the tearing direction, and tears the upper end heat bonding portion. With the configuration in which the notch is formed corresponding to the position, the laminate can be torn linearly from the notch location along the inside of the side end heat bonding portion and opened.

In the above-described packaging bag, a hook or the like is hung on the packaging bag by forming a hanging hole at the center of the upper end thermal bonding portion or by attaching a hanging tool to the upper end thermal bonding portion. It can be used by passing it through a down hole or by hanging a hanging tool on a crosspiece or the like.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

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

FIG. 3 is a perspective view showing a state in which the insect repellent container of the first embodiment is opened.

FIG. 4 is a sectional view taken along a line II in FIG. 3;

FIG. 5 is a plan view showing a second embodiment of the present invention.

FIG. 6 is a sectional view taken along the line II in FIG. 5;

FIG. 7 is a plan view showing a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side end thermal bonding part 2 Top thermal bonding part 3 Lower thermal bonding part 4 Air permeable base material 5 Air permeable base material thermal bonding part 6 Notch 7 Notch line 8 Hanging hole 9 Intermittent thermal bonding part 9 'Non-thermal bonding part 10 Suspension device 11 Laminated body 12 Base layer 13 Thermal adhesive resin layer

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B65D 81/26 B65D 81/26 D 85/00 85/00 A (72) Inventor Taketaka Hamada Shinjuku, Tokyo 1-1-1, Ichigaya-Kaga-cho, Ward Dai Nippon Printing Co., Ltd. (72) Inventor Takeshi Kashiwara 10 Uzumasa Jinbeicho, Ukyo-ku, Kyoto F-term within Dai Nippon Printing Co., Ltd. 3E064 AA01 AA11 BA22 BB03 BC08 BC20 EA03 FA01 FA06 HD07 HE03 HE04 HL01 HL05 HL06 HM03 HN05 HP01 HT05 3E067 AA11 AB97 AC01 BA12A BB14A BB15A BB16A BB18A CA02 CA03 CA04 EA09 EB07 EB10 EE15 EE16 FA02 FC01 GB03 EB02 DD03 DD03 DD02 DD EE21 EE37

Claims (7)

[Claims] 1. A quadrangular front and back laminate comprising a base material layer and a heat-adhesive resin layer, which is laminated with the heat-adhesive resin layer inside and heat-bonded on two opposing sides. A side end thermal bonding portion, ventilation means formed parallel to the side end thermal bonding portion at a position inside a predetermined dimension from two opposing edges, and formed in a direction orthogonal to the side end thermal bonding portion. A packaging bag having a configuration having a heat-bonded upper end portion and a heat-bonded lower end portion. 2. The heat-adhesive resin of a laminate in which the ventilation means is inserted with a tape-shaped air-permeable base material folded in two with the fold inside, and edges of the air-permeable base material are opposed to each other. 2. The packaging bag according to claim 1, wherein the packaging bag is configured to be thermally bonded to the layer surface. 3. The packaging bag according to claim 1, wherein said ventilation means is an intermittent thermal bonding portion having a non-thermal bonding portion formed by thermally bonding the front and back laminates. . 4. A straight line having a depth within the range of the thickness of the base material layer in the base material layer of the laminated body between the side end heat bonding portion and the ventilation means and parallel to the side end heat bonding portion. The packaging bag according to any one of claims 1 to 3, wherein the packaging bag has a configuration in which a cut line is formed and a cutout is formed in an upper end thermal bonding portion of an edge of the cut line. 5. The base material layer of the laminate is formed by laminating a uniaxially stretched plastic film such that a stretching direction of the uniaxially stretched plastic film coincides with a tearing direction, and a tear position is formed at the upper end thermal bonding portion. 4. A notch is formed correspondingly to (1).
The packaging bag according to any one of the above. 6. The packaging bag according to claim 1, wherein a hanging hole is formed at a central portion of the upper end thermal bonding portion. 7. The packaging bag according to claim 1, wherein a hanging tool is attached to the upper end thermal bonding portion.