Plastic film bag

Abstract

To provide a plastic film bag that is recyclable even when a label and a tape are attached thereto.SOLUTION: A plastic film bag 1 comprises an upper portion 11 to which a tape is attached for closing a bag mouth E, and a label attachment portion 12 to which a label is attached, and both of them can be separated from a main body portion 13 by a tear line 15.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a recyclable plastic film bag. [Background technology]

[0002] In order to achieve the SDGs (Sustainable Development Goals), plastic film bags that have been used and discarded are being recycled. For example, Patent Document 1 discloses a method in which waste plastic such as waste plastic film bags is collected, crushed and washed, and turned into recycled resin pellets using an extruder, and plastic film bags are recycled from the recycled resin pellets (see Patent Document 1).

[0003] Generally speaking, plastic film bags are strong, lightweight, waterproof, and easy to use. For this reason, plastic film bags are often used rather than cardboard boxes for mailing and home delivery of items such as clothes and small items. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 7-903 Summary of the Invention [Problem to be solved by the invention]

[0005] However, labels printed with addresses, bar codes, etc. are attached to plastic film bags used for mailing and home delivery. In addition, to close the opening of the plastic film bag, tape such as packing tape is attached to the top of the plastic film bag. These labels and tapes may be made of paper, so there is an issue that plastic film bags with labels and tape attached cannot be recycled.

[0006] The present invention has been made in consideration of the above problems, and has an object to provide a plastic film bag that is recyclable even if a label and tape are attached. [Means for solving the problem]

[0007] In order to solve the above problems, one aspect of the present invention is a plastic film bag in which an upper portion to which tape for closing the bag opening is attached and a label attachment portion to which a label is attached can be separated from a main portion by a tear line. Effect of the Invention

[0008] According to the present invention, the plastic film bag can be recycled even if the label and tape are attached. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a front view of a plastic film bag according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a rear view of the plastic film bag of the present embodiment. [Diagram 3] 1 is a perspective view showing a state in which the plastic film bag of the present embodiment is used. [Figure 4] 1 is a perspective view showing the opened state of the plastic film bag of the present embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, a plastic film bag according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the plastic film bag according to the present invention can be embodied in various forms and is not limited to the embodiments described in the present specification. The present embodiment is provided with the intention of enabling a person skilled in the art to fully understand the invention by fully disclosing the specification.

[0011] Fig. 1 shows a front view of a plastic film bag 1 according to one embodiment of the present invention, and Fig. 2 shows a back view. The plastic film bag 1 of this embodiment has a front A, a back B, and gussets C provided on the left and right sides. The front A and back B are made of a substantially rectangular plastic film. The gusset C is a valley-folded plastic film that is continuous with the front A and back B. The bottom D of the plastic film bag 1 is sealed by heat sealing. The upper end of the plastic film bag 1 is not heat sealed and is used as a bag opening E.

[0012] As shown in Fig. 1, the plastic film bag 1 of this embodiment includes an upper portion 11 to which tape 18 (see Fig. 3) such as packing tape is attached for closing the bag opening E, a label attachment portion 12 to which a label is attached, and a main body portion 13. The upper portion 11 and the label attachment portion 12 can be separated from the main body portion 13 by cut lines 15, 16, and 17.

[0013] Marks 11a (letters, solid lines, arrows, broken lines, etc.) indicating the position to attach tape 18 are printed or otherwise drawn on the top 11 of the plastic film bag 1. These marks 11a are drawn on both the front A and back B of the plastic film. When closing the bag opening E, the top 11 is folded back in a mountain fold, and tape 18 is attached to the folded part (see Figure 3).

[0014] Provided below the upper portion 11 is a label attachment section 12 on which labels printed with addresses, bar codes, etc. are affixed. The label attachment section 12 is continuous with the upper portion 11, and no cut line is provided between the upper portion 11 and the label attachment section 12. Marks 12a (characters, figures, etc.) indicating the position to attach the label are drawn by printing or the like on the label attachment section 12.

[0015] The cut line 15 on the front A of the plastic film bag 1 crosses the front A and has a recess 15a. The recess 15a of the cut line 15 partially surrounds the label affixing portion 12. In this embodiment, the recess 15a surrounds three sides of the substantially rectangular label affixing portion 12. The cut line 15 defines the boundaries between the upper portion 11 and the label affixing portion 12 and the main body portion 13.

[0016] As shown in Fig. 2, the cut line 16 on the back B of the plastic film bag 1 crosses the back B and has a recess 16a. The recess 16a of the cut line 16 partially surrounds the portion 14 corresponding to the label attachment portion 12 on the front A. In this embodiment, it surrounds three sides of the approximately rectangular portion 14. The cut line 16 determines the boundary between the upper portion 11 and the corresponding portion 14 and the main body portion 13.

[0017] A straight cut line 17 continuous with the cut lines 15, 16 on the front A and back B is provided on the gusset C of the plastic film bag 1.

[0018] The tear lines 15, 16, and 17 form annular shapes around the periphery of the plastic film bag 1. The tear lines 15, 16, and 17 are formed by, for example, pressing a perforation cutter against the plastic film bag 1.

[0019] As shown in Fig. 3, when using the plastic film bag 1, clothes, small items, and other items are placed into the bag opening E, the top portion 11 is folded back, and tape 18 is attached to the top portion 11. This allows the bag opening E to be closed. Then, a label (not shown) is attached to the label attachment portion 12.

[0020] As shown in Figure 4, when opening the plastic film bag 1, the label attachment portion 12 on the front A of the plastic film bag 1 and the corresponding portion 14 on the back B are firmly grasped with the hand and pulled. Then, the upper portion 11 and the portion 14 corresponding to the label attachment portion 12 are separated from the main body portion 13 along the cut lines 15, 16, and 17. These separated portions 11, 12, and 14 have tape 18 and labels attached to them, so they cannot be recycled. However, the main body portion 13, which accounts for more than 60% of the whole, can be recycled.

[0021] As shown again in FIG. 1, a pattern 19 that prevents the barcode of an article placed in the plastic film bag 1 from being read is printed or otherwise formed on the main body 13 and upper portion 11 of the front A of the plastic film bag 1.

[0022] As described above, a barcode is affixed to the label. A barcode is also affixed to the item inside the plastic film bag 1. For this reason, even if an attempt is made to read the barcode on the label with a reading device, there is a risk that the barcode of the item inside the plastic film bag 1 will also be read. Pattern 19 is provided to prevent this. Pattern 19 reflects the red color emitted by the LED or laser diode of the reading device, preventing the barcode of the item inside the plastic film bag 1 from being read.

[0023] The color of pattern 19 is preferably white, because it highly reflects the red color emitted by the reading device, making it impossible to read the barcodes of the items inside plastic film bag 1. If pattern 19 is red, it will transmit the red color emitted by the reading device, allowing the barcodes of the items inside plastic film bag 1 to be read. If pattern 19 is black, the recycled plastic film bag 1 will appear dark, making it difficult to check the inside.

[0024] The shape of the pattern 19 is not particularly limited, and may be, for example, a shape in which small and large rectangles are alternately arranged vertically and horizontally. The shape of the pattern may be a polka dot pattern or the like.

[0025] The material of the plastic film bag 1 is not particularly limited, and may be, for example, polyethylene, polypropylene, polystyrene, recycled resin raw materials, etc. Recycled resin raw materials are made by collecting waste plastic such as waste plastic film bags, crushing and cleaning them, and turning them into recycled resin pellets using an extruder. It is desirable to use recycled resin raw materials in order to achieve the SDGs.

[0026] The color of the plastic film bag 1 is not particularly limited, but it is preferable that it is translucent or transparent so that the items inside can be confirmed.

[0027] The manufacturing method of the plastic film bag 1 is not particularly limited, and for example, the plastic film bag 1 can be manufactured by forming gussets C on the left and right sides of a cylindrical plastic film, sealing the bottom at a predetermined bag length pitch, and then cutting the bag at a predetermined bag length pitch.

[0028] The configuration of the plastic film bag 1 of this embodiment has been described above. According to the plastic film bag 1 of this embodiment, the following effects are obtained.

[0029] The upper portion 11 to which tape 18 for closing the bag mouth E is attached and the label attachment portion 12 to which a label is attached can be separated from the main body portion 13 by cut lines 15, 16, 17, so that the plastic film bag 1 can be recycled even with the label and tape 18 attached.

[0030] Since recesses 15a, 16a are provided at the attachment lines 15, 16 on the front A and back B of the plastic film bag 1, the label attachment portion 12 on the front A and the portion 14 corresponding to the label attachment portion 12 on the back B can be firmly grasped with the hand to open the plastic film bag 1. This makes the opening operation easier.

[0031] A mark 11a indicating the position where the tape 18 is to be applied is drawn on the upper portion 11 of the plastic film bag 1, so that the tape 18 can be applied without interfering with the cutoff line 15 on the front A. [Industrial Applicability]

[0032] The use of the plastic film bag 1 of this embodiment is not particularly limited, but it is suitable for mailing and home delivery of items such as clothes and small items. Since a barcode can be printed on the label, it is particularly suitable for delivery bags used by clothing manufacturers when delivering items to mass retailers. Reading the barcode makes it easy to mail or home delivery from the mass retailer's logistics center to each store.

[0033] It should be noted that the present invention is not limited to the above-described embodiment, and can be embodied in other embodiments without departing from the spirit and scope of the present invention.

[0034] In the above embodiment, the plastic film bag has gussets on the left and right sides. However, the gussets may be provided at the bottom, or the left and right gussets may be omitted. [Explanation of symbols]

[0035] 1. Plastic film bag 11…Upper 11a…Marking showing tape application position 12…Label attachment section 13...Main body 15,16…Cutting lines 18…Tape 19...Pattern A...Table B…Back E…Bag opening

Claims

1. This plastic film bag has an upper portion where tape for closing the bag mouth is attached and a label attachment portion where a label is attached, which can be separated from a main portion by a cut line.

2. A tear line on the front of the plastic film bag has a recess that crosses the front and partially surrounds the label attachment portion, 2. The plastic film bag according to claim 1, wherein the tear line on the back of the plastic film bag has a recess that crosses the back and partially surrounds the portion corresponding to the label attachment portion.

3. 3. The plastic film bag according to claim 1, wherein a mark indicating a position for attaching the tape is drawn on the upper portion.

4. 3. The plastic film bag according to claim 1, wherein the upper portion and the main body of the front of the plastic film bag are patterned to prevent the reading of a bar code of an item placed in the plastic film bag.

Images