JPH09290866A - Packaging bag and method for packaging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent humidity and dust from entering a bag in hot and humid condition by providing one end of the bag opening with a cover closing part and the other end with a folding part formed longer than a storage sheet, and by closing the opening part at the cover closing part with the folding part inside. SOLUTION: A little firm holding material PA is inserted in the inside 14 of a packaging bag 10, and a plurality of sheets P, L2 in length and L1 in thickness, are inserted to be stored in the inside of the bag 14 from an opening part 13. Next, a stick shaped pressing member 16 is applied on the outer surface of the packaging bag 10 at the tip end P1 position of the sheet P, and then a cover closing part 11 is moved in the direction of an arrow to close the opening part 13. Furthermore, a folding part 12 extending from the opening part 13 is folded along the pressing member 16 to the outer face of the packaging bag 10 from the opening part 13. In this condition, the pressing member 16 is pulled out. Then the opening part 13 is completely two folded by the closing operation of the cover closing part 11. In this condition, the closing cover part 11 is adhered and fixed to an adhering part 15. By this, the gap created between the inner face of the cover closing part 11 and the opening part 13 is completely sealed preventing humidity and dust from entering.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag for accommodating a sheet member for a printer having a hygroscopic property, and more particularly to a packaging bag for preventing dust and moisture from entering.

[0002]

2. Description of the Related Art As a sheet having a hygroscopic property, there is, for example, a sheet or a film dedicated to an ink jet printer whose surface is coated on a paper or film with a gelatin binder.

FIG. 6 shows a plurality of sheets P (hereinafter referred to as sheets P) and a resin-made packaging bag 1. The packaging bag 1 has an opening 3 for accommodating the sheet P. Further extending from the opening 3 and bending the opening 3
A lid part 2 is formed so as to close the. When storing a plurality of sheets P, the plurality of sheets P are stored in the packaging bag 1 through the opening 3 of the packaging bag 1, and the opening 3 of the packaging bag 1 is closed by folding the lid 2 as shown in FIG. The sheet P is stored in the packaging bag 1 by adhering one end of the lid portion 2 to the adhesive portion 4 having adhesiveness.

[0004]

As described above, the packaging bag 1
Although a large number of sheets P are stored and stored in it. In order to improve the storability of the sheet P, the packaging bag 1 is formed of a thin resin material having a moisture-proof property to prevent moisture. However, the opening 3 formed for accommodating the sheet P merely closes the lid portion 2 by bending, and one end of the lid portion 2 is adhesively fixed by the adhesive portion 4 provided in the packaging bag 1. If only this is done, the closing action of the lid part 2 on the opening part 3 may not be fully achieved. Particularly, when the sheet P is taken out from the packaging bag 1 and used, and the operation of bending and closing the lid portion 2 at the lid portion 2 is repeated, the adhesive fixing positions of the lid portion 2 and the adhesive portion 4 may be slightly displaced. The closing action of the lid 2 is weakened due to the action of the lid 2 itself extending, and moisture enters through the opening 3 especially in a high humidity season. At the same time, dust also enters. The sheet P in which the gelatin binder is applied to the support as described above is extremely weak against humidity, and the sheets P adhere to each other under the influence of moisture in the packaging bag 1 and cannot be taken out. is there.

The present invention relates to a packaging bag for accommodating a sheet for an ink jet printer, which is generally used, and is used under conditions such that temperature and humidity are not particularly limited, and even under severe conditions of high temperature and high humidity. The purpose of the present invention is to prevent moisture and dust from entering through the opening of the packaging bag.

[0006]

For the above-mentioned object, the present invention provides the packaging bag according to claim 1 in which a plurality of sheets are accommodated to form an opening, and an opening of the packaging bag. At one end, a closing lid portion that is bent from the outside of the opening portion to close the opening portion, and at the other end portion of the opening portion of the packaging bag, which is formed longer than the sheets stored in the packaging bag, The folding part according to claim 2, wherein the folding part is bent outward from the opening position, and the opening part of the packaging bag is closed by the closing part with the folding part inside. The length up to the tip of the curved portion is 5 based on the length in the storage direction of the plurality of sheets stored in the packaging bag and the length obtained by adding the stacked thickness.
mm to 10 mm longer, according to claim 3,
The packaging bag is made of a resin material sheet, and the lid part at one end of the opening of the packaging bag is adhesively fixed on the outside of the packaging bag. In one end of the opening of the packaging bag formed to accommodate a plurality of sheets, a lid closed from the outside, and at the other end of the opening of the packaging bag, the sheets stored in the packaging bag. And a plurality of sheet members that are housed in the packaging bag from the opening of the packaging bag, and press the bending portion with a pressing member at the opening position to close the lid. 7. The closure lid is adhesively fixed to the outer surface of the packaging bag while the folding portion pressed by the pressing member is bent outward by moving the portion in the closing direction with respect to the opening portion. The length up to the tip of the bent portion is the size of the multiple sheets stored in the packaging bag. Direction and length is achieved by the thickness of 5mm~10mm elongated to the method than the length obtained by adding overlaid.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In FIG. 1, reference numeral 10 denotes a packaging bag of the present invention. As a material of the packaging bag 10, for example, OPP
(Biaxially oriented polypropylene), PE (polyethylene), cellophane, or NY (nylon) alone, or a laminate of the OPP and CPP (unstretched polypropylene) is used. Or a laminate of the OPP and PE, or NY
And PE laminated, or cellophane and PE
Laminated products are used. Packaging bag 10
Is formed into a bag shape by a process such as adhesion using the above material and has an opening 13 at one end.

A folding lid formed by extending one end of the opening 13 to form a closing lid 11 for closing the opening 13 and extending the other end of the opening 13 in parallel with the closing lid 11. A curved portion 12 is formed. Further, when the opening 13 is closed by the lid 11, the lid 11 is adhesively fixed, so that the adhesive portion 15 having adhesiveness is provided on the surface of the packaging bag 10.

A plurality of printing sheets P for printing are placed in the packaging bag 10 having the above-mentioned structure.
4 through the opening 13. The length of the sheet P in the storage direction is L, and the thickness of the stacked sheets P is L1.

On the other hand, the length of the packaging bag 10 is L2 from the other end 10A of the packaging bag 10 to the leading end P1 when the sheet P is stored in the packaging bag 10, and the length of the bent portion 12 is The length up to the tip 12A is L3, and the length up to the tip 11A of the lid 11 is L4. In this case, the length from the starting point 10A to the tip of the bent portion is 5 mm to 10 mm longer than the sum of the length L of the plurality of sheets stored in the packaging bag in the storage direction and the overlapping thickness L1. To do.

2 (a), (b), (c) and (d),
A method of storing the stacked sheets P in the packaging bag 10 and closing the lid 11 in the opening 13 will be described.

FIG. 2A is a side view in which a part of the packaging bag 10 is cut away, and in a state before the sheets P stacked in the packaging bag 10 are stored, the closing lid portion 11 and the folding portion 12 are shown. Configures the packaging bag 10 in a state of extending along the opening 13 of the packaging bag 10.

FIG. 2B shows a length in a direction in which a hard holding material PA is inserted into the bag 14 of the packaging bag 10 and a plurality of sheets P are accommodated in the packaging bag 10 along the holding material 14. L2,
A plurality of sheets P having a stacked thickness L1 are stored in the bag 14 through the opening 13 of the packaging bag 10. Sheet P
Is completed, and a rod-shaped pressing member 16 is brought into contact with the outer surface of the packaging bag 10 along the tip P1 at the position of the tip P1 of the sheet P as shown in the figure. After the contact of the pressing member 16, the lid part 11 is moved in the direction of the arrow, and the lid part 11 causes the packaging bag 10 to move.
The opening 13 is closed.

In FIG. 2C, the front end 11A of the lid 11 is further moved in the closing direction so that the packaging bag 10 is partially covered by the lid 11.
The opening 13 is closed, and the bent portion 12 extending from the opening 13 is further extended along the pressing member 16 from the opening 13 to the packaging bag 10.
Fold along the outer surface of. In this state, the pressing member 16 is pulled out from the bent portion 12.

FIG. 2D shows the pressing member 1 from the bent portion 12
6 is pulled out, and due to the closing action of the lid 11, the double folding is performed completely from the position of the opening 13 along the outer surface of the packaging bag 10. While maintaining this state, the lid 11 is adhered and fixed to the adhesive 15 provided on the outer surface of the packaging bag 10.

As described above, the opening 13 of the packaging bag 10 has a double-folded structure of the bent portion 12, and the gap formed between the inner surface of the closing lid 11 and the opening 13 is completely sealed to prevent moisture. Prevent the entry of dust.

FIG. 3 is a perspective view of FIG. 2 (b).
At a position of a length L2 in the direction in which a plurality of sheets P are stored,
The pressing member 16 is pressed against the outer surface of the packaging bag 10. The pressing member 16 is located at the leading end P1 of the plurality of sheets P, and the bending portion 12 can be bent accurately in the arrow direction by the closing action of the closing lid portion 11 from the position of the leading end P1.

A pressing member 161 is provided along the length L2 in the direction in which the plurality of sheets P are stored, and the pressing member 1 is provided.
The leading end 162 of 61 is the leading end P of the plurality of sheets P.
The bent portion 12 can be accurately bent in the arrow direction by the closing action of the lid portion 11 from the position of the tip P1.

Further, the pressing member 16 is divided and the tip P1 is
The outer surface of the packaging bag 10 is pressed from both sides of the position
The bending portion 12 may be bent in the arrow direction by the closing action of 1.

Further, the packaging bag 10 is perforated at the position of the tip P1 to make it easy to fold and the tip P
You can also fold it accurately in one position.

FIG. 4 is a perspective view of FIG. 2 (d), in which the pressing member 16 is pulled out from the bent portion 12, and the closing action of the closing lid portion 11 causes the outer surface of the packaging bag 10 to be completely removed from the position of the opening portion 13. Double-folding is performed along with, and the lid portion 11 is fixed to the adhesive portion 15 provided on the outer surface of the packaging bag 10 by adhesion.

Further, the pressing member 16 is moved from the position of the tip P1 toward the opening 13 as needed, the opening 13 is closed by the pressing member 16 using the bent portion 12, and then the lid is closed. The folded portion 12 may be further closed in the closing direction by the closing action of the portion 11.

5 (a), (b), (c), (d),
(E) and (f) show the layer structure of the sheet P.

FIG. 5A shows a three-layer structure in which a matting agent or a color is added to a gelatin layer on the surface layer PB of a support PA such as RC paper or PET film, and the back surface layer PC is a gelatin layer. The sheet P is used.

FIG. 5B shows a PVP layer on the surface layer PB of the support PA such as RC paper or PET film, or P on the PVA.
The back surface layer PC is formed of a three-layer sheet P which is a gelatin layer and does not serve as a layer to which MMA is added.

FIG. 5C shows a gelatin layer or PVA on the surface layer PB of the support PA such as RC paper or PET film.
It is composed of a two-layer sheet P which is a layer or a layer in which glass is added to PVP.

FIG. 5 (d) shows that the support layer PA such as RC paper or PET film has a gelatin layer on the surface layer PB, or a layer in which glass is added to the PVA layer, or a BaSO ₄ layer, and the back surface layer PC is gelatin. Layer with glass added, or BaS
It is composed of a three-layer sheet P which is an O ₄ layer.

FIG. 5 (e) is a layer in which glass is added to the PVA layer on the surface layer PB of the support PA such as RC paper or PET film, and the back surface layer PC is a layer in which Si is added to the PE layer. It is composed of the three-layer sheet P.

FIG. 5 (f) shows a two-layer sheet P having a PVA layer on the surface layer PB of a support PA such as RC paper or PET film.
It consists of. Glass may be added to the PVA layer.

As described above, the front surface layer PB or the rear surface layer PC of the sheet P often uses a gelatin layer, which may adhere to each other due to moisture due to humidity.
The opening 13 prevents moisture and dust from entering.

[0031]

According to the first aspect of the present invention, a packaging bag having an opening formed in a part thereof for accommodating a plurality of sheets, and one end of the opening of the packaging bag is bent from the outside of the opening. A lid that closes the opening, and the other end of the opening of the packaging bag is formed longer than the sheets stored in the packaging bag,
Since the folding part is bent outward from the opening position of the packaging bag and the opening part of the packaging bag is closed with the closing lid part with the folding part inside, the folding part becomes a double fold. Since the parts are sealed, it is possible to prevent the ingress of moisture and dust. In particular, when a sheet for an inkjet printer using a gelatin layer is stored, even if the packaging bag is opened and closed many times, the ingress of moisture and dust can be prevented to the maximum extent.

According to a second aspect of the present invention, the length to the tip of the bent portion is 5 mm to 10 mm longer than the sum of the length of the plurality of sheets stored in the packaging bag in the storage direction and the overlapping thickness. As a result, the opening of the packaging bag has a good closing effect by the lid, and the ingress of moisture and dust can be prevented as much as possible.

In the third aspect of the present invention, since the packaging bag is formed of the resin material sheet, the packaging bag has a moisture-proof property, and moisture ingress can be prevented maximally.

In the present invention, since the closing lid portion provided at one end of the opening of the packaging bag is adhesively fixed on the outside of the packaging bag, the opening and closing work is easy, and the folding portion is folded. Since the bending operation is easy, accurate bending is possible, and it is possible to prevent moisture and dust from entering for a long period of time.

According to a fifth aspect of the present invention, at one end of an opening of a packaging bag formed for accommodating a plurality of sheets, a lid is closed from the outside, and at the other end of the opening of the packaging bag, the packaging is provided. A folded portion formed longer than the sheet stored in the bag, and a plurality of sheet members are stored in the packaging bag from the opening of the packaging bag, and the folded portion is pressed by the pressing member at the opening position. By pressing and moving the lid part in the closing direction with respect to the opening part, the lid part is adhesively fixed to the outer surface of the packaging bag while bending the bent part pressed by the pressing member to the outside. , In particular, since the bending part uses the pressing member to bend, the bending operation by the lid does not cause a part of the bending part to shift from the opening position and can be bent accurately, preventing moisture and dust from entering The blocking efficiency for doing so is extremely good.

According to a sixth aspect of the present invention, the length to the tip of the bent portion is 5 mm to 10 mm longer than the sum of the length in the storage direction of the plurality of sheets stored in the packaging bag and the overlapping thickness. As a result, moisture and dust can be prevented from entering to the maximum.

[Brief description of drawings]

FIG. 1 is a perspective view showing a packaging bag and a plurality of sheets of the present invention.

FIG. 2 is an explanatory view showing the order in which a plurality of sheets are stored in the packaging bag of the present invention and the opening is closed by the lid.

FIG. 3 is a perspective view showing a state in which a pressing member is pressed against the packaging bag of the present invention.

FIG. 4 is a perspective view showing a state in which a plurality of sheets are stored in the packaging bag of the present invention and the opening is closed by the lid.

FIG. 5 is an enlarged cross-sectional view showing the layer structure of a sheet to be stored in the packaging bag of the present invention.

FIG. 6 is a perspective view showing a conventional packaging bag and a plurality of sheets.

FIG. 7 is a perspective view in which a plurality of sheets are stored in a conventional packaging bag and an opening is closed by a lid.

[Explanation of symbols]

 1, 10 Packaging bag 2, 11 Closing part 12 Bending part 13 Opening part 14 Inside bag 15 Adhesive part P sheet

Claims (6)

[Claims] 1. A packaging bag partially formed with an opening for accommodating a plurality of sheets, and one end of the opening of the packaging bag,
A lid portion that is bent from the outside of the opening portion to close the opening portion, and the other end of the opening portion of the packaging bag is formed to be longer than the sheet stored in the packaging bag, and is closer to the opening position of the packaging bag. A packaging bag, comprising: a bent portion that is bent outward, and a configuration in which the opening portion of the packaging bag is closed by the lid portion with the bent portion inside. 2. The length to the tip of the bent portion is 5 mm to 10 mm longer than the sum of the length of the plurality of sheets stored in the packaging bag in the storage direction and the overlapped thickness. The packaging bag according to claim 1. 3. The packaging bag according to claim 1, wherein the packaging bag is formed of a resin material sheet. 4. The packaging bag according to claim 1, 2 or 3, wherein a lid portion provided at one end of the opening of the packaging bag is adhesively fixed on the outside of the packaging bag. 5. A packaging bag formed to accommodate a plurality of sheets has an opening at one end that is closed from the outside, and an opening at the other end of the packaging bag that is accommodated in the packaging bag. A folded portion formed longer than the sheet, and a plurality of sheet members are accommodated in the packaging bag from the opening of the packaging bag, and the folded portion is pressed by a pressing member at the opening position, and the closed A package characterized in that the lid part is bonded and fixed to the outer side surface of the packaging bag while the folding part pressed by the pressing member is bent outward by moving the lid part in the closing direction with respect to the opening part. Method. 6. The length to the tip of the bent portion is 5 mm to 10 mm longer than the sum of the length in the storage direction of a plurality of sheets stored in the packaging bag and the overlapped thickness. The packaging method according to claim 5.