JP2005153975A - Gas-filling type packing material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gas-filling type packing material capable of lightening the working load on the receiver side of a commodity which is the cause for obstructing promotion of reuse of the gas-filled packing material, and promoting the reuse. <P>SOLUTION: The gas-filling type packing material consists of a sealed bag 1 having an internal gas chamber formed in a bag shape and a gas non-return valve member 4 mounted on the bag 1 to introduce gas into the internal gas chamber. A cutting line 5 for cut-off is drawn on a corner part of the bag. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Detailed Description of the Invention

  The present invention relates to a packaging material used for protecting a commodity inside the box by filling it together with a commodity packed in a packaging box such as a cardboard box. In more detail, the present invention fills a space (head space) in a packing box by filling a bag-like bag with gas and inflates the bag, so that the product stored in the box is filled with gas. The present invention relates to a gas-filled packaging material that is protected and fixed by a cushion action.

  A gas-filled packaging material of the type used by filling a gas in a sealed bag-like bag formed of polyethylene or the like and inflating it is known in the art (Patent Document 1). An example of such a gas-filled packaging material is shown in FIG. The gas filling type packing material shown in FIG. 1 is configured by attaching a gas check valve member 4 for introducing gas into an internal gas chamber in a sealed bag-like bag 1 having an internal gas chamber. . Such a bag 1 is formed in a sealed bag shape by making a long sheet of low-density polyethylene or the like into a cylindrical shape and heat-sealing the joint 3 and also heat-sealing both end portions 2 in the same manner. . At this time, the check valve member 4 is attached by inserting the check valve member 4 into the joint 3 and then heat-sealing the joint 3 before heat-sealing the joint 3. Check valve members are also known in the art, and are disclosed in, for example, the above-mentioned Patent Document 1 or Patent Document 2. The check valve member 4 having the simplest structure is formed of a cylindrical member formed of a sheet material such as low density polyethylene and having a gas passage defined therein.

  Such a gas-filled packaging material can be used as a buffer / fixing material by inserting a nozzle such as an air blower into the check valve member 4 and blowing the gas into the gas chamber inside the bag to inflate the bag. When the bag is sufficiently inflated, if the nozzle is pulled out from the check valve member 4, the cylindrical check valve member 4 is closed by the air pressure inside the bag, and the bag is held in an inflated state. . For example, as shown in FIG. 2, packaging may be performed by placing a gas-filled packaging material 10 inflated on a product accommodated in a cardboard box 11 and closing a flap. Alternatively, in a preferred embodiment, the gas-filled packaging material 1 before being inflated is placed on the product, the three directions of the flap of the cardboard box 11 are closed, and the tip of the check valve member 4 is exposed. After inserting the air blower nozzle into the check valve member and blowing gas into the gas chamber, inflating the bag until the box space is full, pull out the air blower nozzle and close the remaining flap Can be packed. According to this method, the space in the cardboard box 11 can be filled without any gaps, and the product can be reliably protected and fixed.

In addition, such a gas-filling type packing material has a volume by opening a box and taking out a product, and then inserting a member such as a straw into the check valve member 4 to draw out the gas in the internal gas chamber and contract it. Can be recovered, and the recovered gas-filled packaging material can be reused by blowing gas from the check valve member 4 again.
JP-T 8-205393 Japanese Patent Laid-Open No. 5-118455

  However, gas-filled packaging materials such as those described above must use a tool such as a straw when extracting gas from the inflated bag, and gas must be extracted to extract gas from the check valve. It took some time to completely remove. All of these operations are burdens on the recipient's side of the product, and have been an obstacle for promoting the reuse of the packaging material. In addition, when the air is extracted from the bag, the check valve member is damaged and often cannot be reused.

  The present invention solves the problems that hinder the promotion of reuse of the conventional gas-filled packaging materials as described above, reduces the work burden on the merchandise recipient side, and recycles it. It aims at providing the gas filling type packing material which can promote utilization more.

  As means for solving such a problem, the present invention provides a sealed bag having an internal gas chamber formed in a bag shape, and a gas reversal for introducing gas into the internal gas chamber attached to the bag. A gas-filled packaging material comprising a stop valve member, wherein a cut-out line for excision is drawn at a corner of a bag.

  In FIG. 3, the concept of the gas filling type packing material which concerns on 1 aspect of this invention is shown. The gas-filled packaging material shown in FIG. 3 is different from the gas-filled packaging material shown in FIG. 1 only in that cut-out lines 5 for cutting are drawn at the corners, and the other configurations are the same. That is, for example, the bag 1 is formed into a sealed bag shape by making a long sheet of low density polyethylene or the like into a cylindrical shape and heat-sealing the joint 3 and also heat-sealing both end portions 2 in the same manner. The At this time, before the seam 3 is heat-sealed, the check valve member 4 is attached by inserting the check valve member 4 into the seam and then heat-sealing the seam. As the check valve member 4, for example, a cylindrical member having a gas passage defined therein can be formed of low-density polyethylene or the like.

  In the gas-filled packaging material of the present invention, the bag 1 is made of low-density polyethylene, polypropylene, nylon and polyethylene two-layer film (polyethylene is the sealing side), polyethylene terephthalate (PET) and polyethylene two-layer film (polyethylene is the sealing side) ) And the like widely used in the art. The check valve member 4 is preferably made of the same material as the bag 1 in consideration of the final disposal. Air can be used as the gas that fills the gas chamber inside the bag when the bag is inflated.

  Next, a method for using such a gas-filled packaging material according to the present invention will be described. First, when used as a packing material, if a nozzle such as an air blower is inserted into the check valve member 4 and a gas is blown into the gas chamber inside the bag 1 to inflate the bag, the product is accommodated. A space (head space) such as a cardboard box can be filled, and as a result, it can be used as a cushioning packing material by an air cushion action.

  After the box is opened by the recipient of the product and the product is taken out, it is cut out with scissors or a cutter along the cut-out line for cutting drawn at the corner of the bag 1. This allows the gas inside the bag to be drawn out very quickly and easily, allowing the bag to shrink and minimize the volume. In this state, the gas-filled packaging material is collected. Therefore, since it will be in the state like a folded bag when it is collected, the volume in the collection line can be reduced to several tenths or less compared to other types of cushioning materials.

  The recovered gas-filled packaging material can be regenerated into a sealed state again by heat-sealing the excised portion of the bag, and can be reused. The heat sealing of the bag can be performed very easily and in a short time by using a heat sealing device well known in the art. Therefore, the manufacturer of the gas-filled packaging material, the manufacturer / seller of the product, At any site such as a merchandise packing company, the gas-filled packing material can be regenerated very easily without excessive work load.

  As described above, the gas-filled packaging material according to the present invention cuts the gas in the bag very easily and quickly by cutting with scissors along the cut line drawn at the corner of the bag. Since the bag can be pulled out and reduced to a minimum volume, it is expected that the work burden on the recipient of the product will be greatly reduced, and collection and reuse will be further promoted. Further, since the check valve member is not touched when the gas in the bag is vented, the check valve member is not damaged when the air is vented. Therefore, according to the gas filling type packaging material of the present invention, it is expected that the collection rate / reuse rate of the packaging material is greatly improved.

  When drawing a cut line at the corner of the bag, a technique known in the art used for drawing a character or a pattern on a plastic material or the like, such as printing, can be used. Also, it is not necessary for the cut line drawn at the corner to be one at each corner, and if a plurality of cut lines are drawn approximately horizontally at each corner, a plurality of cuts can be made at the corner. Can be reused more times.

Industrial applicability

  According to the gas-filled packaging material of the present invention, it is possible to reduce the volume by reducing the air from the used packaging material by an extremely simple operation, thereby greatly reducing the work load on the recipient of the product. Is done. Furthermore, it is expected that the check valve member will not be damaged along with the collection, and the collection rate / reuse rate of the packaging material is greatly improved.

It is a conceptual diagram of the conventional gas filling type packing material. It is a figure which shows one form which packs a gas filling type packing material in a box, and uses it as a packing material. It is a conceptual diagram of the gas filling type packing material which concerns on 1 aspect of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bag 2 Heat seal part 3 of both ends Heat seal part 4 of a joint 4 Check valve member 5 Cut line

Claims (3)

A gas-filled packing material comprising a sealed bag having an internal gas chamber formed in a bag shape, and a gas check valve member attached to the bag for introducing gas into the internal gas chamber A gas-filled packaging material, wherein a cut-out line for excision is drawn at a corner of the bag. The gas-filled packaging material according to claim 1, wherein the bag is made of low-density polyethylene. A method for collecting and reusing a gas-filled packaging material according to claim 1 or 2, wherein the bag is along a cut line drawn at a corner of the bag of the used gas-filled packaging material filled with gas. A method of exhausting and collecting the gas inside the bag by excising a part of the bag, and heat-sealing the excised part of the collected bag to re-seal the bag.

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