JP2002321748A - Packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sealing performance of a packaging box and to securely protect an article housed therein. SOLUTION: This packaging bag A includes a bag body 1 in which a front side sheet 3 and a back side sheet 4 are oppositely disposed and a seal 2 is provided at the right and left sides and the lower side, and an opening portion 5 for housing the article is formed at the upper part between the sheets 3 and 4, and an adhesive tape 6 which adheres to the upper part on the back side of the back side sheet 4 and seals the opening portion 5 by adhering to the front side sheet 3. The adhesive tape 6 of the packaging bag A forms a bonding layer 8 all over one side surface of a base material 7, the bonding layer 8 is composed of a lower bonding layer 8a adhering to the upper part on the back side of the back side sheet 4 and an upper bonding layer 8b exposed to the front side protruding upward from the back side sheet 4, and the upper bonding layer 8b is covered with a removable release tape 9.

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 use in sending goods by, for example, Takkyubin (registered trademark).

[0002]

2. Description of the Related Art Generally, when goods such as clothes and printed matter are sent using a courier service, the goods are housed in a packaging bag made of a synthetic resin formed in a film shape.
FIG. 5 shows a known packaging bag that is convenient for sending articles by Takkyubin. The packaging bag of FIG. 5 will be briefly described. The packaging bag 20 is formed by projecting a lid 22 above an opening 21 formed in the upper portion for accommodating an article. The band-shaped adhesive tape 23 coated with the agent is adhered. Also,
The adhesive tape 23 is covered with a release tape 24 which is superimposed on the adhesive tape 23. The release tape 24 includes an upper covering portion 24a which covers the entire surface of an adhesive layer 23a formed on the adhesive tape 23, The lower covering portion 24 covering the non-adhesive layer 23b to which the adhesive formed on the lower portion is not applied.
b, the lower covering portion 24b is pinched with a finger and pulled lightly, the upper covering portion 24a is peeled off from the adhesive layer 23a to expose the adhesive layer 23a, and then the upper part of the packaging bag 20 is vertically moved at an arbitrary position. It is folded so as to overlap, and the adhesive layer 23a of the adhesive tape 23 is adhered to the front of the packaging bag 20.

[0003] In the above, the adhesive tape for sealing the opening of the packaging bag is adhered to substantially the center of the lid, and no adhesive is applied to the upper end of the lid. Even if the adhesive tape is adhered to the front of the packaging bag and seals the opening, it can be easily peeled off by picking it with a finger, so the lid may be accidentally peeled off during sending. However, it was not possible to reliably protect the contained articles.

[0004]

The problem to be solved by the present invention is to improve the sealing property of the packaging bag and to reliably protect the articles housed inside.

[0005]

SUMMARY OF THE INVENTION According to the present invention,
The front sheet and the back sheet face each other, the left and right side edges and the lower side are sealed, and a bag body having an opening for accommodating articles in the upper portion between the two sheets, and the upper back side of the back sheet. And an adhesive tape that seals the opening by adhering to the front sheet, the adhesive tape forming an adhesive layer on one entire surface of the base material, and the adhesive layer is provided on the upper back side of the back sheet. It comprises a lower adhesive layer to be adhered and an upper adhesive layer projecting upward from the back sheet and exposed to the front, and the upper adhesive layer is covered with a peelable peeling tape.

According to a second aspect of the present invention, a lid is formed above the back sheet so as to protrude above the front sheet, and an adhesive tape is adhered to the back side of the lid.

In the third aspect, the bag and the release tape are different colors.

According to a fourth aspect of the present invention, an advertisement, a company name, a picture, and the like are printed on the release tape.

According to a fifth aspect of the present invention, the release tape is formed to be longer than the upper adhesive layer of the pressure-sensitive adhesive tape, and has a covering portion for covering the upper end of the back sheet.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. In the present invention, as shown in FIGS. 1 and 2, a packaging bag A includes a bag 1 and an adhesive tape 6, and the bag 1 is formed in a vertically long shape by using a transparent or colored synthetic resin film or paper, and a front sheet is formed. The back sheet 3 and the back sheet 4 face each other, and seals 2 are applied to the left and right side edges and the lower side by heat welding or bonding, respectively, to form an opening 5 at an upper portion, and accommodates an article such as a catalog, printed matter or clothing inside. The back sheet 4 is longer than the front sheet 3 and has a lid 4a protruding above the opening 5.

The pressure-sensitive adhesive tape 6 has the same width as the back sheet 4 and forms an adhesive layer 8 coated with a pressure-sensitive adhesive on one entire surface of a base material 7 made of a known material such as a plastic film or paper. The lower adhesive layer 8a of the adhesive layer 8 adheres over the entire width from the right end to the left end on the back side of the lid 4a of the back sheet 4, and a release tape 9 is applied to the upper adhesive layer 8b exposed above the lid 4a. Peelable coating.

The release tape 9 is made of an extremely tough material which is colored so as to have a color different from that of the bag 1, printed with an advertisement, a company name, a picture, or the like, or made transparent.
The upper adhesive layer 8b of the adhesive tape 6 is covered so that the upper adhesive layer 8b is not exposed to the front. In addition,
The release tape 9 is provided with a band-shaped covering portion 9a at the lower end thereof, which is formed to be longer than the upper adhesive layer 8b by applying a silicon process or applying an antistatic agent in order to facilitate peeling from the adhesive tape 6; By covering the upper end of the cover 4a, on which the adhesive is not applied, formed on the upper part of the back sheet 4 with the covering part 9a so as to overlap vertically, the covering part 9a is pinched by a finger, and the peeling tape 9 is lightly pressed. To easily peel off from the upper adhesive layer 8b.

In the packaging bag A of the present invention, as shown in FIG. 2, an adhesive tape 6 is adhered to the back side of a lid 4a formed on the back sheet 4 of the bag body 1. The adhesive tape 6 is adhered to the upper back side of the lid 4a over the entire width and also functions as the lid of the packaging bag A, so that the strength of the lid is also improved. Also, the upper adhesive layer 8b of the adhesive tape 6 is covered with a release tape 9, so that the adhesive of the upper adhesive layer 8b is protected without being exposed on the surface. The article does not adhere to the upper adhesive layer 8b, and can be accommodated smoothly.

Next, from the opening 5 of the packaging bag A to the back sheet 4
After the operation of accommodating the articles is performed along the lid 4a, and the accommodating operation is completed, the release tape 9 is peeled off from the upper adhesive layer 8b of the adhesive tape 6 as shown in FIG. And the release tape 9 are colored in different colors,
If one is transparent and the other is colored, or if the peeling tape 9 is printed with an advertisement, a company name, a painting, or the like, the peeling tape 9 and the bag 1 can be easily distinguished. The position can be checked quickly, and the covering portion 9a of the release tape 9 is vertically overlapped with the lid 4a to which the adhesive is not applied, so that the covering portion 9a can be easily peeled off by grasping it with a finger and pulling lightly. Can be.

Then, as shown in FIG. 4, the upper portion of the bag 1 is folded in an arbitrary direction in a parallel direction and bent up and down. 5 is sealed. Since the upper adhesive layer 8b is coated with an adhesive over the entire surface above the lid 4a, the upper adhesive layer 8b can adhere to the front sheet 3 without any gap, and the adhesive tape 6
Cannot be easily peeled off.

[0016]

According to the first aspect of the present invention, the front sheet and the back sheet face each other, and the left and right side edges and the lower side are sealed, and an opening for accommodating articles is provided between the two sheets. The formed bag body includes an adhesive tape that adheres to the upper back side of the back sheet and seals the opening by adhering to the front sheet, and the adhesive tape forms an adhesive layer on one entire surface of the base material. The adhesive layer comprises a lower adhesive layer that adheres to the upper back side of the back sheet, and an upper adhesive layer that projects upward from the back sheet and is exposed to the front, and the upper adhesive layer is peeled off with a peeling tape that can be peeled off. Because we covered
An adhesive layer of adhesive tape is formed on the entire upper surface of the back sheet, and the adhesive tape can be closely adhered to the front sheet without any gaps. Articles housed therein can be reliably protected.

According to the second aspect of the present invention, the front sheet has a cover projecting upward from the back sheet, and an adhesive tape is adhered to the back side of the cover, so that the thickness of the cover is increased and the strength of the packaging bag is improved. Can be.

Further, if the bag and the release tape have different colors as described in claim 3, or if the release tape is printed with an advertisement, a company name, a picture, or the like, the release tape can be easily identified. The position of the release tape can be quickly checked and brought into close contact with the front sheet, so that workability is greatly improved.

According to a fifth aspect of the present invention, the release tape comprises:
Formed vertically longer than the upper adhesive layer exposed above the back sheet with the adhesive layer of the adhesive tape, and provided with a covering part that covers the upper end of the back sheet, so that the covering part vertically overlaps the lid where no adhesive is applied If the covering portion is pinched with a finger, the release tape can be easily peeled off from the adhesive tape.

[Brief description of the drawings]

FIG. 1 is a front view of a packaging bag of the present invention.

FIG. 2 is an enlarged side sectional view of a main part of the packaging bag.

FIG. 3 is an explanatory view of a state where the release tape of FIG. 2 is peeled off.

FIG. 4 is an explanatory view showing a state in which an adhesive tape of a packaging bag is in close contact with a front sheet.

FIG. 5 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag body 2 Seal 3 Front sheet 4 Back sheet 4a Lid 5 Opening 6 Adhesive tape 7 Base material 8 Adhesive layer 8a Lower adhesive layer 8b Upper adhesive layer 9 Peeling tape 9a Covering part A Packaging bag

Claims (5)

[Claims] 1. A bag body in which a front sheet and a back sheet face each other, sealing is performed on left and right side edges and a lower side, and an opening for accommodating articles is formed in an upper portion between the two sheets, and the back face. Adhering to the upper back side of the sheet, comprising an adhesive tape that seals the opening by adhering to the front sheet, the adhesive tape forms an adhesive layer on one entire surface of the substrate,
The adhesive layer was composed of a lower adhesive layer sticking to the upper back side of the back sheet and an upper adhesive layer projecting upward from the back sheet and exposed to the front, and the upper adhesive layer was covered with a peelable peeling tape. A packaging bag, characterized in that: 2. The packaging bag according to claim 1, wherein a lid projecting upward from the front sheet is formed on an upper portion of the back sheet, and an adhesive tape is adhered to a back side of the lid. 3. The packaging bag according to claim 1, wherein the bag and the release tape have different colors. 4. The packaging bag according to claim 1, wherein an advertisement, a company name, a picture, and the like are printed on the release tape. 5. The packaging bag according to claim 1, wherein the release tape is formed to be longer than the upper adhesive layer of the pressure-sensitive adhesive tape, and has a covering portion that covers an upper end of the back sheet. .