JP2006213385A - Two-room type disposable body warmer packaging material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two-room type disposable body warmer packaging material made of a front and rear resin films which form a storage part to be filled with a content and empty storage sections positioned to both sides of the former storage section and having the rear film provided with many micropores small not allowing the content not to spill out. <P>SOLUTION: The disposable body warmer packaging material is made of a bag shaped front face film (11) partitioned into a plurality of rooms, and a content (30) is filled in one room of the film (11) partitioned. The empty storage rooms (11a, 11a) are provided on one side or both sides of the former room. A rear face film (14) is somewhat larger than the film (11) and empty storage rooms (11a, 11a), and the periphery of the front face film is formed with margin sections (14a, 14a). The rear face film seals the storage room bottom part and the empty storage room bottom part. The rear face film (14) of the rooms (11a, 11a) is formed with many vent holes (15) for taking in outer air. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a two-room disposable body warmer packaging material, which is divided into a room for heating material and a room for heat generation, in order to make a single-layer packaging, in contrast to the conventional disposable body warmer packaged twice. It is.

  A conventional disposable body warmer is a body warmer made of paper, resin fiber, or perforated film, filled with contents such as charcoal, iron powder, water-absorbing material, etc., and shielded from outside air. And it is the structure with the outer bag for preventing heat generation. That is, it is known that the body of the warmer filled with the contents is distributed in a double packaging form in an outer bag having a barrier property.

  In the method of using the double-packed disposable body warmer, the body body is taken out from the outer bag so that oxygen in the air reacts with the contents to generate heat. Further, by manually holding the body of the warmer in order to promote heat generation, the contents are mixed well and heat is generated more quickly by the outside air between the fibers of the main body bag formed thinly.

  However, the conventional disposable body warmer requires an outer bag having a barrier property to prevent heat generation of the main body. However, this outer bag becomes unnecessary and becomes garbage when used. Furthermore, the double wrapping of the inner bag (the body of the warmer) and the outer bag has also caused the packaging material cost to increase.

  Therefore, the present invention has been made to solve the above-described problems, and even if the packaging form of the disposable body warmer is changed from double packaging to single packaging, the contents do not generate heat. A two-chamber type in which a storage portion for filling an object and an empty storage portion are provided at one or both ends thereof, and a back film of the empty storage portion is provided with a large number of fine holes of a size that does not leak contents. A disposable warmer packaging material is provided.

  Claim 1 of the present invention is a disposable warmer packaging material in which a surface film formed in a tray shape or a bag shape is appropriately filled with contents, such as a heating element, and then the back side is sealed with a back film. The tray-shaped surface film (11) is divided into a plurality of storage chambers, one of the storage chambers (11a) is filled with the contents (30), and is divided into one or both sides. The empty film storage chambers (11a, 11a) are provided, and the back film (14) is slightly larger than the surface film (11) formed in a tray shape, a bag shape or the like, and a blank portion is formed around the surface film. (14a, 14a) provided with a resin film or the like, and after filling any one of the storage chambers (11a) with the content (30), the bottom film or empty storage chamber is filled with the back film. It has a structure in which the portion is sealed, and a plurality of vent holes (15) for taking in outside air are provided on the surface film (11), the back film (14) or both surfaces of the empty storage chamber (11a, 11a). It is a two-chamber type disposable body packaging material characterized by being.

Claim 2 of the present invention is the two-chamber disposable warmer packaging material according to claim 1, wherein the empty storage chambers (11a, 11a) provided on one side or both sides of the divided surface film (11) are: It is characterized by being separated from the back film (14) by a weak seal portion (12, 12) that can be easily peeled off.

  According to a third aspect of the present invention, in the two-room disposable warmer packaging material according to the first or second aspect, the marginal part (14a, 14a) of the back film (14) is provided with the surface film (11). It is characterized by a strong seal around the periphery.

  Claim 4 of the present invention is the two-chamber disposable warmer packaging material according to any one of claims 1 to 3, wherein the two-chamber disposable warmer packaging material is weakly sealed with a front film and a back film when used. The part (12, 12) is peeled off, and a part of the contents (30) of the storage chamber (11a) by the separated surface film (11) is moved into the empty storage chamber (11a, 11a), and the ventilation holes It is characterized by generating heat by outside air from.

  In the two-room type disposable warmer packaging material of the present invention, the contents such as the heating element are wrapped by the front and back films, and the contents are not exposed to a part of the back film (does not leak). There are air holes, and this air vent part is isolated by the contents filling part and the easy peel material seal part, and during use, the weak seal part (isolation part) is peeled off and a part of the content that is a heating element Is moved to generate heat by taking in outside air from the vents on the back of the empty storage chamber. That is, it has the characteristics that it takes in oxygen or the like in the outside air to heat the contents and releases the heat to the whole body. Furthermore, the conventional double wrapping of the inner bag and the outer bag is improved, and excellent effects such as a reduction in the cost of the packaging material are exhibited.

  The best mode for carrying out the invention will be described in detail with reference to the drawings.

  FIG. 1 is a cross-sectional explanatory view of a two-chamber disposable warmer packaging material showing an embodiment of the present invention. 2A and 2B show a two-chamber disposable warmer packaging material according to the present invention, in which FIG. 2A is a plan view seen from the top surface, and FIG. 2B is a plan view seen from the back surface side. FIG. 3 is an explanatory cross-sectional view showing a state in which the isolated portion (weakly sealed portion) in the two-chamber disposable warmer packaging material showing an embodiment of the present invention is peeled off and the contents are partially moved to generate heat. .

  As shown in FIG. 1, the configuration of the two-chamber disposable warmer packaging material according to the present invention is a heating element such as charcoal, iron powder, and a water-absorbing material on a surface film appropriately formed in a tray shape, a bag shape, or the like. A two-room type disposable warmer wrapping material having a back side sealed with a back film after filling the contents, wherein the tray-shaped surface film (11) is separated into a plurality of storage chambers, The two storage chambers (11a) are filled with the contents (30), and the empty storage chambers (11a, 11a) divided into one or both sides are provided. The back film (14) is larger than the front film (11) and the empty storage chambers (11a, 11a), and has a configuration in which blank portions (14a, 14a) are provided around the front film. Next, after the storage chamber (11a) of any one of the surface films (11) is filled with the contents (30), the bottom of the storage chamber or the empty storage chamber is sealed with the back film, and the empty storage chamber The surface film (11), the back film (14) or both surfaces of the (11a, 11a) portion are provided with a large number of vent holes (15) for taking in outside air.

  Further, as shown in FIG. 2A, the empty storage chambers (11a, 11a) provided on one side or both sides of the surface film (11) have two weak spots that can be easily peeled off from the back film (14). These are separated from each other by the seal portions (12, 12), whereby the surface film is divided into a plurality of storage chambers and empty storage chambers.

Further, the back film (14) is slightly larger than the storage chamber (11a) and the empty storage chamber (11a, 11a) of the front film (11), and a blank portion (14a, 14a) is provided around the front film. It is a configuration. The margins (14a, 14a) are sealed around the surface film (11) with a strong seal. Further, as shown in FIG. 2B, the bottom of the storage chamber or the bottom of the empty storage chamber is sealed with a back film, and a large amount of outside air is applied to the back film (14) in the empty storage chamber (11a, 11a). An intake vent (15) is provided.

  Next, when the two-chamber disposable warmer packaging material of the present invention is used, as shown in FIG. 3, the weakly sealed portions (12, 12) formed by the surface film and the back film separated from each other are peeled off. The storage chamber and the empty storage chamber are integrated, and a part of the contents (30) filled in any one of the storage chambers (11a) is moved (sorted) into the empty storage chambers (11a, 11a). As a result, outside air enters through the large number of outside air intake holes (15) in the back film at the bottom of the original empty storage chamber, and the entire contents generate heat. Furthermore, not only the back film, but also air holes can be provided on the surface film, the back film, or both surfaces of the empty storage chamber.

  As for the details of the surface film (11) used in the present invention, it is preferable that an easy peel sealant is applied to the inner surface based on a barrier film. In consideration of the heat generation temperature of the warmer, a sealant having a melting point higher than the heat generation temperature is desirable, but if there is no low temperature sealing property, the filling machine speed is limited, so that the melting point is about 70 ° C to 160 ° C. desirable. The material is preferably of a type in which the opening strength can be controlled by a sealing pressure or a sealing temperature using a polyethylene easy peel film, a polypropylene easy peel film or the like. Moreover, an aluminum foil, a transparent vapor deposition film, and a polyvinylidene chloride coating film can be used as a barrier film. Further, a concealing layer or aluminum vapor deposition film by printing or the like may be used so that the contents (contents) cannot be seen outside the sealant layer.

Next, the back film (14) is basically the same structure as the surface film, but the difference from the surface film is that
-It is necessary to provide a part of the ventilation hole (15) for taking in oxygen in the air at the start of heat generation.

  Moreover, a normal sealant film may be used as long as it can be sealed with an easy peel film as a surface film and can be easily peeled. However, it is not necessary for both the front and back films to be easy peel films.

Furthermore, as a method of strength control of “strong seal part” and “weak seal part to be peeled off as needed” when filling the heating element (contents),
・ Set the temperature and pressure high when sealing a strong seal, and set the temperature and pressure low when sealing a weak seal, and seal each separately (twice sealing).

・ Use a seal bar with a high seal bar for the strong seal and a low seal for the weak seal.

  However, the above methods may be combined or implemented by other methods. Furthermore, it is possible to use a method in which an easy peel film ribbon is sandwiched and sealed only in the weak seal portion so that it can be peeled off during use.

  In addition, the hole drilling process for taking in oxygen in the air is to make a hole smaller than the contents of charcoal, iron powder, water absorbent material etc. as a heating element physically with a fine needle or the like, A method of baking with a discharge or a laser can be used.

  Specific examples will be described in detail below.

Example 1
As a surface film, dry laminate of 20 μm thick vinylidene chloride coated nylon (KNy) and 20 μm thick vapor-deposited linear low density polyethylene (VMLLDPE), and PE-based easy peel material (J film) on the polyethylene (PE) surface of the vapor-deposited linear low density polyethylene. “PY2000” made by the company was processed with 15 μm SPE, and then the back film was made with the same structure as the front film, and a pinhole (vent hole) was provided to the extent that the contents did not leak but not the entire surface. It was set as the back film.

  Using this surface film and the back film, fill the inside of the surface film of the back film with no air holes with the contents of the body (heating elements) such as “charcoal, iron powder, water-absorbing material”. It seals strongly in the blank part of a back film, and the weak seal part peeled off later seals weakly (size: 50x80 mm square). As a method of controlling this seal, sealing was performed twice.

(Example 2)
As a surface film, dry laminate of 20 μm thick vinylidene chloride coated nylon (KNy) and 20 μm thick vapor-deposited linear low density polyethylene (VMLLDPE), and PE-based easy peel material (J film) on the polyethylene (PE) surface of the vapor-deposited linear low density polyethylene. “PY2000” manufactured by the company was processed by 15 μm SPE Next, 20 μm thick vinylidene chloride coated nylon (KNy) and 20 μm thick vapor-deposited linear low density polyethylene (VMLDDPE) were dry-laminated as the back film, and the vapor-deposited linear low-density polyethylene polyethylene The (PE) surface was treated with a linear low-density polyethylene (LLDPE) 30 μm extruder, and the back surface was filled with a pinhole (vent hole) that would not spill the contents on the entire surface. To.

  Using this surface film and the back film, fill the inside of the surface film of the back film with no air holes with the contents of the body (heating elements) such as “charcoal, iron powder, water-absorbing material”. It seals strongly in the blank part of a back film, and the weak seal part peeled off later seals weakly (size: 50x80 mm square). As a method of controlling this seal, sealing was performed twice.

(Example 3)
As a surface film for the inner bag, nylon (Ny) with a thickness of 15 μm and vapor-deposited linear low density polyethylene (VMLLDPE) with a thickness of 20 μm are dry laminated, and the linear low density polyethylene (LLDPE) is deposited on the polyethylene (PE) surface of the vapor-deposited linear low density polyethylene. ) Was subjected to 30 μm extruder lami. Further, as the back film for the inner bag, a pin film having the same configuration as the above-described surface film for the inner bag is provided with a pinhole that does not spill the contents in the same manner as in Example 1 to obtain a back film. Furthermore, as a peeling ribbon, a 30 μm thick PE-based easy peel material (“PY2000” manufactured by J-Film Co., Ltd.) is slit to a width of 5 mm, which is weak when making bags. The peeling ribbon is sandwiched at a position where the sealing portion is to be formed, and the contents are filled in the inner portion of the vent hole in the same manner as in Example 1.

(Comparative Example 1)
As Comparative Example 1, a warmer bag similar to the conventional one was manufactured and used as a comparative product. First, as a surface film for the inner bag, nylon (Ny) having a thickness of 15 μm and vapor-deposited linear low density polyethylene (VMLLDPE) having a thickness of 20 μm are dry-laminated, and the linear low-density polyethylene is deposited on the polyethylene (PE) surface of the vapor-deposited linear low-density polyethylene. (LLDPE) was subjected to 30 μm extruder lami. Further, as the back film for the inner bag, a pin film having the same configuration as the above-described surface film for the inner bag is provided with a pinhole that does not spill the contents in the same manner as in Example 1 to obtain a back film. Using this surface film and the back film, the contents of the body such as “charcoal, iron powder, water-absorbing material” were filled and the four corners were sealed (size: 50 × 80 mm square). Further, the outer bag is made of vinylidene chloride coated polypropylene (KOP) / “ethylene vinyl acetate copolymer (EVA) with 10% VA content” 30 μm, and further packaged.

  The comparative evaluation of the products of Examples 1 to 3 and Comparative Example 1 was performed. The results are shown in Table 1.

評価結果は、使用時の廃棄物、使用開始時の利便性、コストの点で実施例１から実施例３の発明品が優れている。

As for the evaluation results, the inventive products of Examples 1 to 3 are superior in terms of waste at the time of use, convenience at the start of use, and cost.

  The warmer packaging material of the present invention can be used for all disposable warmers that are double-wrapped. Further, it can be used for packaging materials such as a poultice material for cooling and heating.

It is sectional explanatory drawing of the two-chamber type disposable body packaging material which shows one Example of this invention. The two-room type disposable body packaging material in this invention is shown, (A) is the top view seen from the upper surface, (B) is the top view seen from the back surface side. It is sectional explanatory drawing which shows the state which peels the isolation | separation part (weak seal part) in the two-chamber type disposable warmer packaging material which shows one Example of this invention, and moves the contents partially and makes it heat_generation | fever. The two-room type disposable body packaging material in this invention is shown, (A) is the top view seen from the upper surface, (B) is the top view seen from the back surface side. It is sectional explanatory drawing which shows the state which peels the isolation | separation part (weak seal part) in the two-chamber type disposable warmer packaging material which shows one Example of this invention, and moves the contents partially and makes it heat_generation | fever.

Explanation of symbols

10 …… Two-room type disposable warmer 11 …… Center surface film 11a …… Empty storage room 12 …… Weak seal part 14 …… Back film 14a… Margin part of back film 15 …… Ventilation hole 30 …… Heat generation Contents such as body

Claims (4)

  A disposable warmer packaging material in which a surface film formed in a tray shape or bag shape is appropriately filled with contents that are materials such as a heating element, and then the back side is sealed with a back film, The surface film (11) is divided into a plurality of storage chambers (11a), the contents (30) are filled in any one of the storage chambers, and the empty storage chambers (11a, 11a are divided on one side or both sides). In the back film (14), a resin that is slightly larger than the surface film (11) formed in a tray shape, a bag shape, or the like, and has blank portions (14a, 14a) around the surface film. Consists of a film, etc., and after any one of the storage chambers (11a) is filled with the contents (30), the bottom of the contents storage chamber or the empty storage chamber bottom is sealed with the back film. Two chambers, wherein the empty storage chambers (11a, 11a) have a surface film (11), a back film (14), or a plurality of ventilation holes (15) for taking in outside air on both surfaces. Disposable warmer packaging material.   The empty storage chambers (11a, 11a) provided on one side or both sides of the divided surface film (11) are separated from each other by a weak seal portion (12, 12) that can be easily peeled off from the back film (14). The two-room disposable body warmer packaging material according to claim 1, wherein:   The two-room type disposable warmer packaging material according to claim 1 or 2, wherein the periphery of the surface film (11) is strongly sealed in the margins (14a, 14a) of the back film (14). .   When using the two-chamber disposable warmer packaging material, the weak seal portion (12, 12) formed by the surface film and the back film is peeled off, and the contents of the storage chamber (11a) formed by the separated surface film (11) The two-chamber disposable warmer packaging according to any one of claims 1 to 3, wherein a part of (30) is moved into the empty storage chamber (11a, 11a) and is heated by outside air from the vent hole. Wood.

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