JP3105735U - Plastic Delivery Bag with Hetter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a home delivery bag which has robustness so that it does not fall out even when a heavy object is put in, and which is resistant to getting wet with water.
SOLUTION: The plastic home delivery bag with a head according to the present invention is formed of a bag body formed by folding a plastic laminated film and providing a back sticker and a bottom seal by heat welding, and a plastic laminated paper. Is provided with a super-strong adhesive layer on one side of an upper part protruding from the bag body, and a head seal having a release paper adhered on the super-strong adhesive material. It is characterized by the following.
[Selection diagram] Fig. 1

Description

  The present invention relates to a parcel delivery bag, and more particularly, to a parcel delivery bag used in postal and courier services.

  Conventionally, most of the above-mentioned parcel delivery bags are made of paper, and have a problem that a heavy load puts them on the bottom and breaks easily when wet with water.

  Therefore, an object of the present invention is to provide a home delivery bag which has robustness so that it does not run out even when a heavy object is put in, and which is resistant to wetness.

The above problem is solved by a plastic home delivery bag with a head according to the present invention having the following configurations (1) to (6).
(1) A bag body formed by folding a plastic laminated film and providing a back sticker and a bottom seal by heat welding, and a plastic laminated paper, and affixed to the top of the bag body at a lower portion, A plastic delivery bag with a head, characterized in that a super-strong adhesive layer is provided on one surface of an upper part protruding from the main body, and a head seal is provided on which a release paper is adhered.
(2) The plastic home delivery bag with a head according to the above (1), which is of a quadrangular prism seal type.
(3) The home delivery plastic bag with a head according to the above (1), which is of a center seal type.
(4) The plastic home delivery bag with a head according to any one of the above (1) to (3), which has a gusset on both sides.
(5) The plastic home delivery bag according to any one of (1) to (4), further comprising a zipper extending laterally above the bag body and sealing the bag body.
(6) The plastic delivery bag with a head as described in (1) to (5), wherein a boat bottom seal is provided at a lower portion of the bag body.
In this specification, the delivery bag includes an envelope used for mail or the like.

In the plastic home delivery bag with a head according to the present invention, the bag body is formed by heat welding a predetermined portion of the plastic laminating film. Extremely hard against water wetness.
In addition, since the head seal is configured as described above, when the upper part of the bag body is closed by using the head seal, rainwater or the like hardly penetrates into the inside, so that the contents can be protected from moisture.

Hereinafter, an example of a plastic delivery bag with a head according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.
The plastic home delivery bag 10 with a head according to the embodiment of the present invention shown in FIG. 1 is formed by folding a single rectangular plastic laminated film F and sealing it at a predetermined location by heat welding, and a bag body 12. It is made of plastic laminated paper, one side is coated with a super-strong adhesive, and the lower part of this super-strong adhesive is attached to the top of the bag body, and the upper part is a Hetter seal attached with release paper. 30.

  The plastic laminated film forming the bag body preferably has a structure of, for example, a biaxially stretched polypropylene film / aluminized polyester film / linear low density polyethylene film.

The plastic laminated paper forming the above-mentioned Hetter seal is preferably made of YUPO coated with polypropylene.
These materials can be selected from a variety of materials depending on the application, design, specifications, and the like.

  As the super-strong adhesive, for example, it is preferable to use an adhesive using an acrylic solvent. The general adhesive is of a type using an aqueous solvent.

  In this home delivery bag 10, the bag body 12 has at least a back sticker 14 and a bottom seal 16 shown in detail in FIG. These seals are performed by heat welding plastics together.

The home delivery bag 10 is preferably a quadrangular prism seal type as shown, but may be a center seal type such as a normal envelope.
In addition, in order to easily insert bulky contents, it is preferable to provide a gusset 18 on both sides of the bag body or to provide a boat bottom seal 20 at the bottom.
Further, a zipper (not shown) extending in a lateral direction may be provided at an upper portion of the bag body to seal the inside of the bag body 12. Since this zipper may be a normal zipper attached to a plastic bag or the like, further description is omitted.
As shown in FIG. 3, the head seal 30 includes a head seal main body 32, and a super-strong adhesive layer 34 is provided on an upper portion of the head seal main body. A release paper 36 is affixed thereto.

Next, a method of manufacturing the home delivery bag 10 having the structure shown in FIG. 1 will be described with reference to FIGS. In a normal production, a process is performed from a roll sheet to completion on one line by a center sealing machine, a center sealing machine with a gusset zipper, and a three-side sealing machine, but in the following description, for simplicity of explanation. Description will be made assuming that one rectangular plastic laminated film is manufactured by folding.
(1) As shown in FIG. 4, one rectangular (for example, 37 cm long and 72 cm wide) plastic laminated film is prepared.
(2) Next, as shown in FIG. 5, the plastic laminated film is folded at the center in the length direction.
(3) Thereafter, as shown in FIG. 6, the two pieces formed by folding are pushed into both sides with a plate to be folded to form both gussets. Here, the two side edge portions that have come into contact with each other are thermally welded to form the back sticker 14 shown in FIG.
(4) Next, as shown in FIG. 7, the four corners are sealed by heat welding with a width of about 5 mm.
(5) Next, as shown in FIG. 8, the bottom portion is heat-welded at a point 40 to stop the inside of the gusset.
(6) Thereafter, as shown in FIG. 9, the bottom is heat-welded to form the bottom seal 16 and both sides are inverted so that the shape when the contents are put in the bag is maintained. The boat bottom seal 20 is formed by heat welding in a letter shape.
Next, the excess back paste is cut off.
(7) Next, an ultra-strong adhesive material for applying a head seal to the top of the bag body is applied.
(8) Finally, a head seal is adhered to the bag body using the above-mentioned super-adhesive material to obtain a finished product having the form shown in FIG.

It is a perspective view showing an example of a plastic delivery bag with a head according to an embodiment of the present invention. It is sectional drawing in alignment with line AA of FIG. FIG. 2 is a sectional view taken along line BB in FIG. 1. It is a figure which shows the 1st stage (preparation of a plastic laminated film) of the manufacturing method of the plastic home delivery bag with a head shown in FIGS. 1-3. It is a figure which shows the 2nd stage (folding process) of the manufacturing method of the plastic home delivery bag with a head shown in FIGS. 1-3. It is a figure which shows the 3rd step (gusset formation process) of the manufacturing method of the plastic home delivery bag with a head shown in FIGS. 1-3. It is a figure which shows the 4th step (four corner heat welding process) of the manufacturing method of the plastic home delivery bag with a head shown in FIGS. 1-3. It is a figure which shows the 5th step (gusset process) of the manufacturing method of the plastic home delivery bag with a head shown in FIGS. 1-3. FIG. 6 is a view showing a sixth step (bottom heat welding step) of the method for manufacturing the self-standing container shown in FIGS. 1 to 3.

Explanation of reference numerals

10 Plastic Delivery Bag with Hetter 12 Plastic Laminated Film 14 Back Seal 16 Bottom Seal 18 Depth 20 Boat Bottom Seal 30 Hetter Seal 32 Hetter Seal Body 34 Super Strong Adhesive 34 Release Paper

Claims (6)

  A plastic laminated film is folded, formed by a bag body formed by providing a back seal and a bottom seal by heat welding, and formed of plastic laminated paper, adhered to a top portion of the bag body at a lower portion, and protruded from the bag body. A plastic delivery bag with a head, characterized in that a super-strong adhesive layer is provided on one side of the upper part, and a head seal is provided on which the release paper is adhered.   The plastic delivery bag with a head according to claim 1, which is of a quadrangular prism seal type.   The plastic delivery bag with a head according to claim 1, which is of a center seal type.   The plastic home delivery bag according to any one of claims 1 to 3, which has a gusset on both sides.   The plastic home delivery bag with a head according to any one of claims 1 to 4, further comprising a zipper extending laterally above the bag body and sealing the bag body. The plastic home delivery bag with a head according to any one of claims 1 to 5, wherein a boat bottom seal is provided at a lower portion of the bag body.

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