JP3744979B2 - Packaging that can reduce loading pressure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging body technology that can reduce the loading pressure, and more specifically, a packaging body that is filled and sealed with contents such as liquid samples, viscous bodies, powders, granules, or solids such as sample samples. The present invention relates to a packaging body technology that can reduce the load pressure applied to the packaging body and prevent bag breakage even when the magazine is attached to a printed matter such as a magazine, collected, and transported.
[0002]
[Prior art]
In general, books such as magazines are collected on a pallet after printing and bookbinding, and further stacked in multiple stages. When a product sample such as a thick sample is sandwiched in a magazine in which such an accumulation method is performed, for example, for advertising purposes, a force of about 250 kgf is applied to the product sample located at the bottom. ing.
Conventionally, in such a case, for the purpose of preventing dissipation of product samples from magazines and protecting them, for example, corrugated cardboard or interleaved paperboard is used as protective paper, and this has approximately the same shape as the outer shape of the sample. A cutout part is provided and fixed by adhering it to an advertisement page of a magazine, etc., and the sample is inserted into the cutout space part and fixed to prevent dissipation, and a load caused by stacking (hereinafter referred to as loading) The method of protecting the sample by reducing the pressure) was called.
[0003]
[Problems to be solved by the invention]
However, in such a method, for example, when corrugated cardboard is used as the protective paper, the compressive strength is not so strong. Therefore, in order to reduce the loading pressure, it is necessary to increase the area of the corrugated cardboard as much as possible. As a result, there is a problem that the feeling of foreign matter is strengthened, and at the same time, the material cost and processing cost of the protective paper are increased, and it is not suitable for a product sample such as a relatively inexpensive sample in a small bag.
In particular, even if you want to pack a liquid product sample and attach it to a magazine, if the bag breaks, it will contaminate the surrounding magazines. Pressure reduction measures must also be designed with a sufficient safety factor, and could not be implemented easily.
[0004]
In addition, when attaching advertisement samples (actual samples) to magazines, the Japan Magazine Association has established a voluntary standard for “notes in creating magazines” in 1986, but in 1994 the standard was relaxed. The content of “Considerations for creating magazines” that has been reviewed and amended has been published by the Japan Journal Association on November 29, 1994. According to this, with regard to attaching advertisement samples (actual samples), for example, the range of samples that can be attached is cosmetics (up to cosmetics, shampoos, soaps, detergents), and powders and liquids are completely sealed and damaged. Do not. The area of attachment is a 25 cm ² 100 cm ^2, the thickness is within 1.5 mm. It can be implemented from magazines released in mid-January 1995 on the condition.
[0005]
The present invention has been made in view of the above problems and regulations, and the object of the present invention is a packaging bag for filling and sealing product samples such as liquids, powders, granules, etc. At the same time as complying with voluntary standards, it can be easily mounted on printed materials such as magazines and catalogs. Generally, it is loaded with a load of about 250 kgf, and when necessary, for example, a total weight of 3 tons or more specified by the Japan Magazine Association is applied. It is to provide a package that can reduce the loading pressure at a low cost.
[0006]
[Means for Solving the Problems]
As a result of various studies to solve the above problems, for example, such as a filling liquid, in the packaging bag to be sealed, the size of the bag (area) and 25 cm ² 100 cm ^2, therein, thickness approximately 1. By filling and sealing a 5 mm spacing support member together with a liquid sample or other product sample whose filling amount is adjusted so that the thickness of the package after sealing does not exceed 1.5 mm, the package becomes a magazine. When the magazines are accumulated and stacked, the loading pressure is reduced by the spacing support member enclosed in the bag. As a result, the present invention has been completed by obtaining knowledge that does not cause bag breakage and that can be adapted to the voluntary standards of the Japan Magazine Association.
[0007]
That is, the invention of claim 1 is a packaging bag for filling and sealing contents such as liquids, powders, granules, etc., together with the contents, and equal to or more than the average thickness of the package after filling and sealing. A gap support having a thickness and having a thickness of 1.5 mm or less, a flat ring shape or a chevron shape , and formed of high-density polyethylene or polypropylene. The member is composed of a package body that is enclosed in a packaging bag.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the packaging body capable of reducing the loading pressure of the present invention will be described in detail.
(About packaging bags)
First, the material used for the bag portion of the packaging body of the present invention is selected and used according to the type of contents to be filled, but the material used in a normal flexible package is used in the same manner. be able to.
In general, a laminated film is used as a material of the bag, and the structure thereof is a laminated structure such as a surface layer / sealant layer or a surface layer / intermediate layer / sealant layer. In this configuration, the surface layer and the intermediate layer are composed of a single layer or two or more types of multilayers. In addition, an adhesive layer can be provided between the above layers as necessary.
[0009]
The surface layer has excellent printability and laminate suitability, as well as excellent overall mechanical strength such as tensile strength, tear strength, impact strength, etc., as well as solvent resistance and chemical resistance, as well as heat resistance during heat sealing. Sex is necessary.
As a film satisfying such performance and conditions, for example, a biaxially stretched polyester film, a biaxially stretched nylon film, a biaxially stretched polypropylene film, or the like, or for imparting moisture resistance and gas barrier properties thereto. Examples thereof include films coated with polyvinylidene chloride (PVDC) and the like, and these can be used alone or in combination of two or more. The thickness of such a surface layer is suitably in the range of about 9 μm to 50 μm.
[0010]
The intermediate layer is provided in order to improve the mechanical strength of the laminated film or to improve water vapor and various gas barrier properties. For example, nylon, ethylene-vinyl acetate copolymer saponified product ( Various resin films such as EVOH) and aluminum foil, or resin films having a surface coated with a thin film such as aluminum, silicon oxide, or alumina by vacuum deposition or the like are used. The thickness of the intermediate layer is usually about 7 to 50 μm.
When the intermediate layer is prepared in the form of a film in advance, the intermediate layer is laminated on the surface layer by using a conventionally known dry lamination method or a heat adhesive resin such as polyethylene between the surface layer and the intermediate layer. The laminate can be laminated by a so-called sandwich lamination method in which the substrate is extruded from a T-die to be bonded and bonded. In the case of processing using a pellet-shaped resin, the film of the surface layer is directly extruded and coated or laminated, or once formed into a film by inflation molding or the like, and this is laminated by a dry lamination method. You can also.
In addition, when laminating the intermediate layer on the surface layer film, the surface of the surface layer is subjected to a corona discharge treatment for stabilizing the adhesion, and further, known as an organic titanium-based, urethane-based, imine-based, rubber-based, etc. An anchor coat can also be applied.
[0011]
The sealant layer is provided in the innermost layer of the laminated film, and when the laminated film is produced, it is necessary to thermally bond with sufficient strength by the heat and pressure of the sealer. In addition, since it is in the innermost layer of the bag and directly contacts the contents to be filled, resistance to the contents is also required.
Such sealant layers include low density polyethylene (LDPE), linear low density polyethylene (LLDPE), polypropylene (PP), ethylene-vinyl acetate copolymer resin (EVA), and ethylene-acrylic acid copolymer resin (EAA). Polyolefin resins such as ethylene-ethyl acrylate copolymer resin (EEA) and ionomer can be used, and suitable ones can be selected and used according to the type of contents.
The sealant layer can be laminated by extruding and coating the resin as described above on the surface layer or the inner surface side of the film in which the surface layer and the intermediate layer are laminated. Can be laminated by dry lamination. In this case as well, pretreatment such as corona discharge treatment or anchor coating can be applied to the laminated surface in order to stabilize the adhesion.
In addition, since the packaging bag of this invention requires strong heat seal strength, it is preferable to laminate | stack by the latter dry lamination system which can make heat seal strength stronger. The thickness of such a sealant layer is usually preferably in the range of about 15 to 100 μm.
[0012]
The packaging bag used in the present invention is produced by applying the laminated film prepared as described above to a bag making machine or a bag making / filling machine (bag making and filling, sealing is in-line) and thermally bonding it into a bag shape. . As the form of the bag, a side seal type, a two-side seal type, a three-side seal type, a pillow type, a gusset type, etc. are possible, but in the case of the package of the present invention, the contents are filled and then sandwiched between magazines etc. It is necessary that the bag does not break even when a large loading pressure of 250 kgf or more is applied. From this point, the side seal type, two-side seal type, and three-side seal type (with four sides sealed after filling) that can provide strong and stable heat seal strength. Form), and three-side seal type bags are particularly preferred.
[0013]
(Spacing support member)
In the package of the present invention, the spacing support member enclosed in the package together with the contents in order to reduce the loading pressure has a thickness equal to or greater than the average thickness of the package, and the As long as it has a hardness that does not cause deformation due to the maximum load applied to the package, and it does not impair the properties of each other coexisting with the contents, the material and shape can be arbitrarily selected and used. it can.
Examples of such materials include thermoplastic and thermosetting synthetic resins, sintered bodies such as metals and ceramics, and minerals, and any of them can be used. Of course, it is also an important factor that it is inexpensive, judging from the application. From this point of view, thermoplastic and thermosetting synthetic resins with good processability are preferred, and especially thermoplastic resins have good moldability and cost. This is preferable in that an inexpensive one can be selected.
Specifically, polyethylene (PE), polypropylene (PP), polystyrene (PS), acrylonitrile-butadiene-styrene copolymer resin (ABS resin), polyvinyl chloride (PVC), polycarbonate (PC), and polyethylene terephthalate ( Polyesters such as PET) and polybutylene terephthalate (PBT) can be preferably used as general-purpose resins, and resins classified as engineering plastics can also be used. These resins may be used alone, but it is also preferable to add an inorganic filler.
[0014]
As described above, the shape of the spacing support member is basically equal to or greater than the average thickness of the package, but it is enclosed with the contents in the package, and printed matter such as magazines. Any shape may be used as long as it can reduce the loading pressure due to the accumulation and prevent bag breakage in a state of being sandwiched so as to be fixed in, for example, FIG. 1 to FIG. Some examples are shown, but the present invention is not limited to this.
Only, when used to attach the package to the magazine, the terms of voluntary standards of Japan Journal Association, in a size area can be accommodated in a bag of 25 cm ² 100 cm ^2, within approximately 1.5mm thick Is a condition.
Such a spacing support member can be produced by a known method depending on the material used. For example, when the material is a thermoplastic resin, it can be manufactured not only by injection molding but also by creating a plate having a predetermined thickness (for example, 1.5 mm) and punching it into a desired shape.
[0015]
(Creation of packaging)
Filling the packaging bag prepared as described above with the above-mentioned spacing support member and contents (for example, shampoo, etc.), deaeration so as not to leave air, and heat-sealing the opening, the packaging body of the present invention is obtained. Can be created.
こ の At this time, the filling amount of the contents needs to be adjusted so that the average thickness of the package is equal to or smaller than the thickness of the spacing support member.
When the average thickness of the package exceeds the thickness of the spacing support member, that is, when the content is filled too much, the bag itself is directly subjected to the load during accumulation, and the loading pressure of the spacing support member This is not preferable because the reduction effect cannot be obtained.
[0016]
(How to attach the package to printed matter such as magazines)
The method of attaching the package of the present invention to a magazine or the like is not particularly limited, and the package may be directly attached to a predetermined page of the magazine or the like using an adhesive, or prepared separately. A package is attached in advance to a printed board (single-sheet, bi-fold, tri-fold, etc.), and this is bound to a predetermined page of a magazine or pasted, or folded in half, three In the case of folding, it may be attached with a rubber band stopper or the like.
The contents of the package attached to a magazine or the like in this way are usually sample products for advertisement and advertisement, and are used by magazine subscribers etc. by removing the package from the mount. . Accordingly, the adhesive used when the package is attached to a magazine page or mount is not necessarily limited, but is preferably detachable, and in this respect, an adhesive (including a double-sided adhesive tape, etc.) ) Is preferred. And, as a countermeasure against the ease of peeling and the adhesive remaining on the paper surface after peeling, the adhesive surface of the page on which the package is pasted, the adhesive surface of the mount, and the opposing surface such as the overlapping page are light It is also preferable to provide a resin layer (such as an overprint layer) capable of imparting the releasability.
[0017]
【Example】
Hereinafter, the present invention will be described in detail with reference to the drawings and examples. However, the present invention is not limited to these examples.
FIG. 1 (a) is a schematic plan view showing the configuration of an embodiment of a packaging body that can reduce the loading pressure of the present invention, and FIG. 1 (b) is the packaging body shown in (a). It is a schematic cross section which shows the state which bonded together on the base_sheet | mounting_paper which becomes pages, such as a magazine.
The package 1 shown in FIG. 1 (a) is a U-shaped spacing support member having a thickness equal to or greater than the average thickness of the package 1 after filling and sealing together with the contents such as liquid. 4a is filled in a packaging bag 2 of a three-side seal type formed of a laminated film, deaerated so as not to leave air, the opening is sealed by heat sealing, and the four corners are sealed.
Moreover, (b) of FIG. 1 shows a configuration in which the packaging body 1 of (b) is fixed by an adhesive such as a pressure sensitive adhesive at an adhesive portion 6 on a mount 5 serving as a page of a magazine or the like. . In the package 1, the filling amount of the contents is adjusted so that the thickness of the portion where the spacing support member 4a is present is larger than the thickness of the portion where the spacing support member 4a is not present.
[0018]
FIG. 2 (a) is a schematic plan view showing the configuration of another embodiment of the packaging body capable of reducing the loading pressure of the present invention, and FIG. 2 (b) is the packaging shown in the above (a). It is a schematic cross section which shows the state which bonded the body on the base_sheet | mounting_paper which becomes pages, such as a magazine.
In FIG. 2A, the package 1 is configured in the same manner as in FIG. 1, but the gap support member 4b enclosed with the contents is equal to the average thickness of the package 1 after filling and sealing. Alternatively, it is configured by replacing it with a flat ring shape having a thickness greater than that.
FIG. 2B shows a configuration in which the package 1 of FIG. 2A is fixed on the mount 5 serving as a page of a magazine or the like by an adhesive 6 with an adhesive. Also in this case, the filling amount of the contents is adjusted so that the thickness of the portion where the spacing support member 4b is present in the package 1 is larger than the thickness of the portion where the spacing support member 4b does not exist.
[0019]
FIG. 3 (a) is a schematic plan view showing the configuration of still another embodiment of the packaging body capable of reducing the loading pressure of the present invention, and FIG. 3 (b) is the above-mentioned FIG. 3 (b). It is a schematic cross section which shows the state which bonded together the package shown in the above on the base_sheet | mounting_paper which becomes pages, such as a magazine.
The package 1 shown in (a) of FIG. 3 is configured by enclosing the interval support member 4c in the packaging bag 2 together with the contents, similar to the package of FIGS. Only the shape of the support member 4c has a thickness equal to or greater than the average thickness of the package after filling and sealing, and at the same time, as shown in the figure, is replaced with a mountain shape. It is.
Moreover, (b) of FIG. 3 shows a configuration in which the package 1 of (b) is fixed by an adhesive 6 at an adhesive portion 6 on a mount 5 that becomes a page of a magazine or the like.
[0020]
【Example】
Hereinafter, the present invention will be described in detail with reference to examples.
Example 1
Using the laminated film prepared in the following configuration as a bag material, a rectangular three-side seal type bag having an outer dimension of 11 cm in width and a length of 14 cm was heat-sealed with a seal width of 8 mm to make a bag. (The total area of the bag is 154cm ² )
This bag was filled with 13 cc of liquid shampoo, and after inserting a spacing support member made by punching a 1.5 mm thick high density polyethylene sheet into the following shape, deaerated, and an opening with a seal width of 8 mm. The package of Example 1 was made by heat sealing and sealing.
[The area of the filled portion of this package is 116.56 cm ² , and the average thickness of the package after filling is approximately 1.28 mm (excluding the thickness of the film). ]
Structure of laminated film (surface layer) biaxially stretched polyethylene terephthalate film (thickness 12 μm) / (intermediate layer) aluminum foil (thickness 7 μm) / biaxially stretched nylon film (thickness 15 μm) / (sealant layer) linear low Density polyethylene (LLDPE) (thickness 50 μm) [total thickness 84 μm]
The above layers were all laminated by a dry lamination method.
Shape of spacing support member A high-density polyethylene sheet having a thickness of 1.5 mm was punched into a flat circular ring shape having an outer diameter of 50 mmφ and an inner diameter of 30 mmφ (width 10 mm) to produce a spacing support member.
[This spacing support member has a volume of about 1.88 cm ³ . ]
[0021]
(Example 2)
Using the same laminated film as that of Example 1 as a bag material, a rectangular three-way seal type bag having an outer dimension of 8 cm in width and a length of 12 cm was heat-sealed with a seal width of 8 mm to make a bag. (The total area of the bag is 96cm ² )
After filling the bag with 8 cc of liquid shampoo and further inserting a spacing support member having the following shape obtained by injection molding polypropylene, the container was degassed and sealed by heating and sealing the opening with a seal width of 8 mm. The package of Example 2 was created.
[The area of the filled portion of this package is 66.56 cm ² , and the average thickness of the package after filling is about 1.38 mm (excluding the thickness of the film). ]
Shape of the spacing support member A U-shaped spacing support member as shown in FIG. 1, whose dimensions are the length of the bottom side of 50 mm, the rising parts on both sides, the length of the two sides of 80 mm, each side This is a flat U-shaped shape having a width of 4 mm and a thickness of 1.5 mm.
[The volume of the spacing support member is approximately 1.212 cm ³ . ]
[0022]
Example 3
Using the same laminated film as that of Example 1 as a bag material, a rectangular three-way seal type bag having an outer dimension of 8 cm in width and a length of 12 cm was heat-sealed with a seal width of 8 mm to make a bag. (The total area of the bag is 96cm ² )
After filling the bag with 8 cc of liquid shampoo and further inserting a spacing support member having the following shape obtained by injection molding polypropylene, the container was degassed and sealed by heating and sealing the opening with a seal width of 8 mm. The package of Example 3 was created.
[The area of the filled portion of this package is 66.56 cm ² , and the average thickness of the package after filling is about 1.33 mm (excluding the thickness of the film). ]
Shape of interval support member A flat circular ring-shaped molded product having an outer diameter of 50 mmφ, an inner diameter of 42 mmφ (width 4 mm) and a thickness of 1.5 mm was prepared as an interval support member.
[The volume of this spacing support member is about 0.866 cm ³ . ]
[0023]
(Comparative Example 1)
In the configuration of the package of Example 1, all except for the spacing support member were processed in the same manner as in Example 1 to obtain a package of Comparative Example 1.
[0024]
(Comparative Example 2)
In the configuration of the package of Example 2, all except for the spacing support member were processed in the same manner as in Example 2 to obtain a package of Comparative Example 2.
[0025]
(Pressure resistance test and results)
About the packaging bodies of Examples 1 to 3 and Comparative Examples 1 and 2 prepared as described above, when these are attached to a magazine or the like and are accumulated and stacked high, each packaging body is loaded. In order to investigate whether or not it can withstand the pressure, a pressure resistance test was performed by the following method.
Method of pressure resistance test Ten packaging bodies of Examples 1 to 3 and Comparative Examples 1 and 2 were sampled, each was inserted into the center of a magazine having a thickness of about 10 mm, and both sides were adhered to the page. The test sample was fixed with tape.
After each sample prepared as described above was subjected to a load of 3000 kgf by a compression tester, the package of each sample was examined for the presence or absence of bag breakage (leakage).
[0026]
As a result of the above pressure resistance test, the packaging bodies of Examples 1 to 3 were all good without bag breakage (liquid leakage). On the other hand, the sample packaging bodies of Comparative Examples 1 and 2 were found to have broken bags (liquid leakage) due to film breakage at the end of the heat seal portion or partial peeling of the seal portion.
This indicates that the spacing support member enclosed with the contents in the packaging body of the example worked effectively in terms of reducing the pressure applied to the packaging body. It indicates that even if attached, problems such as broken bags will not occur.
[0027]
【The invention's effect】
As described above in detail, the packaging body of the present invention is equivalent to the average thickness of the package body after filling and sealing together with the contents in the packaging bag for filling and sealing the contents such as liquid, powder, and granular materials. It is the structure which enclosed the space | interval support member which has thickness more than it.
By adopting such a configuration, when the package is pasted on a mount that becomes a page of a printed matter such as a magazine or catalog with a releasable adhesive such as an adhesive, the package is dropped from the magazine. And can be easily peeled off if necessary.
In addition, even when magazines with packaging attached are stacked and stacked, the spacing support member receives the loading pressure, reducing the loading pressure on the packaging and preventing accidents such as broken bags. be able to.
The spacing support member itself only needs to be enclosed in the package together with the contents, and the work can be simplified because it does not require special labor for attachment. In addition, by forming the bag with an opaque material, the spacing support member is not visible from the outside, and the appearance is excellent without any discomfort.
[0028]
In addition, by forming the spacing support member with synthetic resin, a molding method suitable for the resin used can be adopted, so that the spacing support member with excellent accuracy and appearance can be freely produced with high productivity and low cost. Therefore, it is possible to reduce the load pressure stably on the package, and it is possible to reliably prevent bag breakage.
The size of the packaging bag (area) and 25 cm ² 100 cm ^2, the thickness of the spacing support member and until 1.5mm, the filling amount of the contents, the average thickness of the package is within 1.5mm As a result of this adjustment, a package that conforms to the items attached to the sample (actual sample) advertisement of “Notes on creating magazines” prescribed as a voluntary standard by the Japan Journal Association and a magazine attached with the package are provided. Can do.
[Brief description of the drawings]
FIG. 1 (a) is a schematic plan view showing the configuration of an embodiment of a packaging body capable of reducing the loading pressure of the present invention, and FIG. It is a schematic cross section which shows the state bonded together on the base_sheet | mounting_paper which becomes pages, such as.
FIG. 2 (a) is a schematic plan view showing the configuration of another embodiment of a packaging body that can reduce the loading pressure of the present invention, and (b) is the packaging body of (a) above. It is a schematic cross section which shows the state which bonded together on the base paper used as pages, such as a magazine.
FIG. 3 (a) is a schematic plan view showing a configuration of still another embodiment of a packaging body capable of reducing the loading pressure of the present invention, and (b) is the packaging of (a) above. It is a schematic cross section which shows the state which bonded the body on the base_sheet | mounting_paper which becomes pages, such as a magazine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Packing body 2 Packaging bag 3 Heat seal part 4a, 4b, 4c Space | interval support member 5 Mount 6 Bonding part

Claims (1)

In a packaging bag that is filled and sealed with contents such as liquid, powder, and granular material, and has a thickness equal to or greater than the average thickness of the package after filling and sealing together with the contents, and the thickness is within Saga 1.5 mm, also, its shape is a shape in the form of flat ring-shaped or mountain-density polyethylene or polypropylene in forming intervals support members are sealed in the packaging bag A packaging body characterized by being.

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