JP2019181832A - Packaging bag, wet towel individual package, flavor product individual package, and manufacturing method of packaging bag - Google Patents

Packaging bag, wet towel individual package, flavor product individual package, and manufacturing method of packaging bag Download PDF

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JP2019181832A
JP2019181832A JP2018076628A JP2018076628A JP2019181832A JP 2019181832 A JP2019181832 A JP 2019181832A JP 2018076628 A JP2018076628 A JP 2018076628A JP 2018076628 A JP2018076628 A JP 2018076628A JP 2019181832 A JP2019181832 A JP 2019181832A
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packaging bag
film
laminate
polyvinylidene chloride
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JP6963530B2 (en
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裕紀 中谷
Hironori Nakatani
裕紀 中谷
暁仁 木崎
Akihito Kizaki
暁仁 木崎
勉 犬塚
Tsutomu Inuzuka
勉 犬塚
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Daicel Value Coating Ltd
FSX Inc
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FSX Inc
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Abstract

To provide a packaging bag making it hard for a flavor component and moisture to leak from an article to be packaged.SOLUTION: A film 2 by laminating a cast polypropylene layer 10 or a linear low density polyethylene layer 10 on a laminate 8 of a biaxially drawing polypropylene layer 6 and a polyvinylidene chloride layer 4 or a laminate 8 of a polyethylene terephthalate layer 6 and the polyvinylidene chloride layer 4 is made in a bag shape. Water vapor permeation degree of the film is 4.0 g/(mday) or less. Thickness of the laminate is 5 to 80 μm, and thickness of the cast polypropylene layer or the linear low density polyethylene layer is 10 to 80 μm.SELECTED DRAWING: Figure 1

Description

本発明は包装袋、おしぼり個装体、香気製品個装体および包装袋の製造方法に関するものである。   The present invention relates to a packaging bag, a hand towel individual package, an aroma product individual package, and a method for manufacturing a packaging bag.

近年、紙おしぼりの製造工程において香料液を用いることにより賦香された紙おしぼりの製造が行われている(例えば、特許文献1参照)。また、この紙おしぼりは賦香された後、所定のサイズに切断され、包装フィルムにより包装されることにより個装されている。この紙おしぼりの包装袋としては、ポリプロピレンからなるフィルムからなる包装袋が用いられている。   In recent years, paper towels scented by using a fragrance liquid in a paper towel manufacturing process have been manufactured (see, for example, Patent Document 1). In addition, the paper towel is perfumed, cut into a predetermined size, and packaged with a packaging film to be individually packaged. As this paper towel packaging bag, a packaging bag made of a film made of polypropylene is used.

特開2017−42389号公報JP 2017-42389 A

しかし、ポリプロピレンのフィルムからなる包装袋を用いた場合、フィルムを介して賦香された紙おしぼりから香料成分が抜けるため、長期間の保管には適していなかった。また、紙おしぼりの長期間の保管する際には、おしぼりが十分に水分を含んだ状態で保管する必要がある。
本発明の目的は、被包装物から香料成分および水分が抜けにくい包装袋および包装袋の製造方法を提供すること、また、この包装袋を用いたおしぼり個装体および香気製品個装体を提供することである。
However, when a packaging bag made of a polypropylene film is used, since the fragrance component is removed from the paper towel scented through the film, it is not suitable for long-term storage. In addition, when storing paper towels for a long period of time, it is necessary to store the towels in a state of sufficiently containing water.
SUMMARY OF THE INVENTION An object of the present invention is to provide a packaging bag and a method for producing a packaging bag in which flavor components and moisture are not easily removed from an article to be packaged, and also provide a wet towel individual package and an aroma product package using the packaging bag. It is to be.

本発明者らは、上記課題に鑑みて鋭意検討を重ねた結果、所定の種類の層を3層含んでなるフィルムにより形成される包装袋により上記目的を達成できることを見出し、本発明を完成させるに至った。   As a result of intensive studies in view of the above problems, the present inventors have found that the above object can be achieved by a packaging bag formed of a film including three layers of a predetermined type, and complete the present invention. It came to.

即ち、本発明によれば、
(1) 2軸延伸ポリプロピレン層とポリ塩化ビニリデン層との積層体またはポリエチレンテレフタラート層とポリ塩化ビニリデン層との積層体に、キャストポリプロピレン層またはリニアローデンシティポリエチレン層が積層したフィルムを袋状とした包装袋、
(2) 前記フィルムの水蒸気透過度は、4.0g/(m・day)以下である(1)記載の包装袋、
(3) 前記積層体の厚みは、5〜80μm、前記キャストポリプロピレン層またはリニアローデンシティポリエチレン層の厚みは10〜80μmである(1)または(2)記載の包装袋、
(4) 前記キャストポリプロピレン層またはリニアローデンシティポリエチレン層が袋の内側となる(1)〜(3)の何れかに記載の包装袋、
(5) おしぼりと、(1)〜(4)の何れかに記載の包装袋とを含み、前記包装袋により前記おしぼりを密封包装したおしぼり個装体、
(6) 香気製品と、(1)〜(4)の何れかに記載の包装袋とを含み、前記包装袋により香気製品を密封包装した香気製品個装体、
(7) (1)〜(4)の何れかに記載の包装袋を製造するための包装袋の製造方法であって、2軸延伸ポリプロピレン層とポリ塩化ビニリデン層との積層体またはポリエチレンテレフタラート層とポリ塩化ビニリデン層との積層体と、キャストポリプロピレン層またはリニアローデンシティポリエチレン層とを積層させる積層工程と、前記フィルムをヒートシールすることにより袋状とするヒートシール工程とを含む包装袋の製造方法
が提供される。
That is, according to the present invention,
(1) A bag made of a laminate of a biaxially stretched polypropylene layer and a polyvinylidene chloride layer or a laminate of a polyethylene terephthalate layer and a polyvinylidene chloride layer and a cast polypropylene layer or a linear low-density polyethylene layer laminated Packaging bag,
(2) The packaging bag according to (1), wherein the water vapor permeability of the film is 4.0 g / (m 2 · day) or less.
(3) The packaging bag according to (1) or (2), wherein the laminate has a thickness of 5 to 80 μm, and the cast polypropylene layer or the linear low-density polyethylene layer has a thickness of 10 to 80 μm.
(4) The packaging bag according to any one of (1) to (3), wherein the cast polypropylene layer or the linear low-density polyethylene layer is inside the bag,
(5) A hand towel individual package including a hand towel and the packaging bag according to any one of (1) to (4), wherein the hand towel is hermetically packaged by the packaging bag,
(6) A fragrance product and a packaging bag according to any one of (1) to (4), wherein the fragrance product is individually packaged by sealing the fragrance product with the packaging bag,
(7) A method for producing a packaging bag for producing the packaging bag according to any one of (1) to (4), comprising a laminate of a biaxially oriented polypropylene layer and a polyvinylidene chloride layer, or polyethylene terephthalate A packaging bag comprising: a laminate of a layer and a polyvinylidene chloride layer; a lamination step of laminating a cast polypropylene layer or a linear low density polyethylene layer; and a heat sealing step of heat-sealing the film to form a bag. A manufacturing method is provided.

本発明の包装袋によれば、被包装物から香料成分および水分が抜けにくい包装袋および包装袋の製造方法を提供することができる。また、この包装袋を用いたおしぼり個装体および香気製品個装体を提供することができる。   According to the packaging bag of the present invention, it is possible to provide a packaging bag and a method for producing the packaging bag in which the fragrance component and the moisture are not easily removed from the package. In addition, a wet towel individual package and an aroma product individual package using the packaging bag can be provided.

本発明に用いるフィルムの積層構成を示す模式図である。It is a schematic diagram which shows the laminated structure of the film used for this invention.

以下、本発明の包装袋について説明する。本発明の包装袋は、2軸延伸ポリプロピレン(OPP)層とポリ塩化ビニリデン(PVDC)層との積層体またはポリエチレンテレフタラート(PET)層とポリ塩化ビニリデン(PVDC)層との積層体に、キャストポリプロピレン(CPP)層またはリニアローデンシティポリエチレン(L−LDPE)層が積層したフィルムを袋状としたものである。   Hereinafter, the packaging bag of this invention is demonstrated. The packaging bag of the present invention is cast into a laminate of a biaxially oriented polypropylene (OPP) layer and a polyvinylidene chloride (PVDC) layer or a laminate of a polyethylene terephthalate (PET) layer and a polyvinylidene chloride (PVDC) layer. A film in which a polypropylene (CPP) layer or a linear low density polyethylene (L-LDPE) layer is laminated is formed into a bag shape.

図1は、フィルムの構成を示す模式図である。図1に示すように本発明に用いるフィルム2は、A層4およびB層6を有する積層体8と、キャストポリプロピレン層またはリニアローデンシティポリエチレン層10(以下、「C層10」ということがある。)を有している。   FIG. 1 is a schematic diagram showing the structure of a film. As shown in FIG. 1, the film 2 used in the present invention may be a laminate 8 having an A layer 4 and a B layer 6 and a cast polypropylene layer or a linear low-density polyethylene layer 10 (hereinafter referred to as “C layer 10”). .)have.

ここで、積層体8は、2軸延伸ポリプロピレン層およびポリ塩化ビニリデン層を有するKOPフィルムまたはポリエチレンテレフタラート層およびポリ塩化ビニリデン層を有するKETフィルムである。   Here, the laminate 8 is a KOP film having a biaxially oriented polypropylene layer and a polyvinylidene chloride layer or a KET film having a polyethylene terephthalate layer and a polyvinylidene chloride layer.

また、積層体8においてA層4がポリ塩化ビニリデン層である場合には、B層6が2軸延伸ポリプロピレン層またはポリエチレンテレフタラート層、B層6がポリ塩化ビニリデン層である場合には、A層4が2軸延伸ポリプロピレン層またはポリエチレンテレフタラート層である。これらのなかでも、A層4がポリ塩化ビニリデン層、B層6が延伸ポリプロピレン層またはポリエチレンテレフタレート層であることが好ましい。   In the laminate 8, when the A layer 4 is a polyvinylidene chloride layer, the B layer 6 is a biaxially stretched polypropylene layer or a polyethylene terephthalate layer, and when the B layer 6 is a polyvinylidene chloride layer, Layer 4 is a biaxially oriented polypropylene layer or a polyethylene terephthalate layer. Among these, it is preferable that the A layer 4 is a polyvinylidene chloride layer, and the B layer 6 is a stretched polypropylene layer or a polyethylene terephthalate layer.

積層体8の厚みは、フィルム2を包装袋とした場合に、被包装物から香料成分および水分が抜けにくくなり、長期保管が可能となる観点から、好ましくは5μm以上、より好ましくは10μm以上であり、好ましくは80μm以下である。また、積層体8が2軸延伸ポリプロピレン層とポリ塩化ビニリデン層との積層体である場合の厚みは15μm以上80μm以下であることがさらに好ましく、積層体8がポリエチレンテレフタラート層とポリ塩化ビニリデン層との積層体である場合の厚みは10μm以上80μm以下であることがさらに好ましい。   The thickness of the laminated body 8 is preferably 5 μm or more, more preferably 10 μm or more, from the viewpoint that when the film 2 is used as a packaging bag, the fragrance component and moisture are less likely to be removed from the package, and long-term storage is possible. Yes, preferably 80 μm or less. Further, when the laminate 8 is a laminate of a biaxially stretched polypropylene layer and a polyvinylidene chloride layer, the thickness is more preferably 15 μm or more and 80 μm or less, and the laminate 8 is a polyethylene terephthalate layer and a polyvinylidene chloride layer. More preferably, the thickness of the laminate is 10 μm or more and 80 μm or less.

また、C層10の厚みは、フィルム2を包装袋とした場合に、被包装物から香料成分および水分が抜けにくくなり、長期保管が可能となる観点から、好ましくは10μm以上、より好ましくは15μm以上、さらに好ましくは20μm以上であり、好ましくは80μm以下である。   Further, the thickness of the C layer 10 is preferably 10 μm or more, more preferably 15 μm, from the viewpoint that when the film 2 is a packaging bag, the fragrance component and moisture are less likely to be removed from the package, and long-term storage is possible. As mentioned above, More preferably, it is 20 micrometers or more, Preferably it is 80 micrometers or less.

また、本発明に用いるフィルムの水蒸気透過度は、フィルム2を包装袋とした場合に、被包装物から香料成分および水分が抜けにくくなり、長期保管が可能になるという観点から、好ましくは4.0g/(m・day)以下、より好ましくは、3.6g/(m・day)以下である。なお、水蒸気透過度は、JIS K 7129−5:2016に基づいて、40℃、相対湿度90%の条件にて測定を行った値である。
なお、フィルム2を包装袋とした場合に、被包装物から香料成分および水分が抜けにくくなることにより、40℃の保管条件において3か月以上の保管が可能となる。
In addition, the water vapor permeability of the film used in the present invention is preferably 4. from the viewpoint that when the film 2 is used as a packaging bag, the fragrance component and moisture are less likely to be removed from the packaged article and long-term storage becomes possible. 0 g / (m 2 · day) or less, more preferably 3.6 g / (m 2 · day) or less. The water vapor permeability is a value measured under conditions of 40 ° C. and 90% relative humidity based on JIS K 7129-5: 2016.
In addition, when the film 2 is used as a packaging bag, it becomes difficult to remove the fragrance component and moisture from the packaged item, and thus storage for 3 months or more is possible under storage conditions of 40 ° C.

本発明に用いるフィルムの製造方法は、特に限定されないが、積層体8とC層10とを積層させる方法が好ましく、ドライラミネート法、押出しラミネート法、ダイレクトラミネート法など公知の方法を採用することができる。これらのなかでも積層体8とC層10との間に接着層を必要としない観点から、ダイレクトラミネート法が好ましい。なお、積層体8としては、OPP層またはPET層とPVDC層とを公知の方法により積層させることにより得てもよいし、市販のKOPフィルムやKETフィルムを用いてもよい。
また、本発明においてOPP層は2軸延伸ポリプロピレンを、PET層はポリエチレンテレフタレートを、PVDC層はポリ塩化ビニリデンを、CPP層はキャストポリプロピレンを、L−LDPE層は直鎖状低密度ポリエチレンをそれぞれ主成分とする層であればよく、それぞれの層は本発明の目的を阻害しない範囲で他の成分を含んでいてもよい。
The method for producing the film used in the present invention is not particularly limited, but a method of laminating the laminate 8 and the C layer 10 is preferable, and a known method such as a dry laminating method, an extrusion laminating method, or a direct laminating method can be adopted. it can. Among these, the direct lamination method is preferable from the viewpoint of not requiring an adhesive layer between the laminate 8 and the C layer 10. In addition, as the laminated body 8, you may obtain by laminating | stacking an OPP layer or a PET layer, and a PVDC layer by a well-known method, and you may use a commercially available KOP film and a KET film.
In the present invention, the OPP layer is mainly biaxially stretched polypropylene, the PET layer is polyethylene terephthalate, the PVDC layer is polyvinylidene chloride, the CPP layer is cast polypropylene, and the L-LDPE layer is linear low-density polyethylene. Any layer may be used as a component, and each layer may contain other components as long as the object of the present invention is not impaired.

なお、積層体8とC層10とを積層させてフィルム2を得る方法以外の方法であっても、A層、B層およびC層を積層させることができる方法であれば制限なく採用することができる。例えば、A層4を構成するフィルムおよびC層10構成するキャストポリプロピレンフィルムを予め作製し、A層4およびC層10の間にB層6を構成する原料を溶融させ押出しラミネート法によりフィルム2を得てもよい。
また、本発明の効果を阻害しない範囲でA層4とB層6との間、B層6とC層10との間に接着層を設けてもよい。
In addition, even if it is methods other than the method of laminating the laminated body 8 and the C layer 10 and obtaining the film 2, as long as it is a method which can laminate | stack an A layer, a B layer, and a C layer, it will employ | adopt without a restriction | limiting. Can do. For example, a film constituting the A layer 4 and a cast polypropylene film constituting the C layer 10 are prepared in advance, and the raw material constituting the B layer 6 is melted between the A layer 4 and the C layer 10 to form the film 2 by extrusion lamination. May be obtained.
Further, an adhesive layer may be provided between the A layer 4 and the B layer 6 and between the B layer 6 and the C layer 10 as long as the effects of the present invention are not impaired.

また、本発明の効果を阻害しない範囲でフィルム2の表面や裏面に和紙により構成される層やアルミ素材により構成される層等の種々の素材から構成される層を積層させてもよい。また、A層4、B層6、C層10または種々の素材から構成される層にパッケージ印刷等の印刷を行ってもよい。また、表面にマット加工等を行ってもよい。   Moreover, you may laminate | stack the layer comprised from various raw materials, such as a layer comprised by the paper or the layer comprised by the aluminum material, on the surface and back surface of the film 2 in the range which does not inhibit the effect of this invention. In addition, printing such as package printing may be performed on the layer A 4, the layer B 6, the layer C 10, or a layer made of various materials. Further, mat processing or the like may be performed on the surface.

本発明の包装袋は、上記のフィルム2を袋状とすることにより得られる。フィルムを袋状とする方法としては、フィルム2を矩形等の所定の形状に切断し、筒状等にすることにより重なったフィルムの周縁部をヒートシールすることにより袋状とすることができる。また、ヒートシールの態様としては、特に限定されず、側面シール、スティック型シール、三方シール、四方シール、封筒貼りシール、ピローシール、ガゼット等を用いることができる。   The packaging bag of this invention is obtained by making said film 2 into a bag shape. As a method for making the film into a bag shape, the film 2 can be made into a bag shape by cutting the film 2 into a predetermined shape such as a rectangle and heat-sealing the peripheral portions of the overlapped films. Moreover, it does not specifically limit as an aspect of heat seal, A side seal | sticker, a stick-type seal | sticker, a three-way seal, a four-way seal, an envelope sticker seal, a pillow seal, a gusset etc. can be used.

また、本発明の包装袋により被包装物を密封包装する方法としては、特に限定されないが、投入するための開口部を残して所定の形状に切断されたフィルム2のヒートシールを行うことにより筒状または袋状とし、開口部から被包装物を投入して最後に開口部をヒートシールする方法;フィルム2を筒状等にすることにより重なったフィルム2の間に被包装物を配置し、フィルム2における被包装物の周縁部をヒートシールする方法などが挙げられる。これにより、被包装物の個装体を得ることができる。   In addition, the method for hermetically sealing the package with the packaging bag of the present invention is not particularly limited, but the tube 2 is sealed by heat-sealing the film 2 that has been cut into a predetermined shape while leaving an opening for loading. A package or a bag-like shape, a package is inserted through the opening, and finally the opening is heat-sealed; the package 2 is placed between the overlapping films 2 by making the film 2 into a cylindrical shape, etc. For example, a method of heat-sealing the peripheral edge of the object to be packaged in the film 2 may be used. Thereby, the individual package of a to-be-packaged object can be obtained.

また、本発明の包装袋により密封包装する被包装物としては、特に限定されないが、香料成分を含む香気製品や水分を十分に含む製品が好ましく、たとえば、アロマシート、おしぼり(特に香料成分を含むおしぼり)等が挙げられる。おしぼりの材質は特に限定されず、紙製おしぼり、不織布製おしぼりおよび布製おしぼりなど公知のおしぼりを密封包装することができる。また、接着性の観点から、フィルム2のC層10側が内側(被包装物側)となるように被包装物を密封包装することが好ましい。   In addition, the package to be packaged hermetically sealed with the packaging bag of the present invention is not particularly limited, but a fragrance product containing a fragrance component or a product sufficiently containing moisture is preferable, for example, an aroma sheet, a towel (particularly including a fragrance component). Hand towels). The material of the hand towel is not particularly limited, and a well-known hand towel such as a paper hand towel, a non-woven cloth hand towel, and a cloth hand towel can be sealed and packaged. Further, from the viewpoint of adhesiveness, it is preferable that the package is hermetically packaged so that the C layer 10 side of the film 2 is on the inner side (packaged product side).

また、香料成分としては、特に限定されないが、たとえば、シトラス、ペパーミント、ラベンダー、クロモジ、ニオイコブシ、ヒノキ、スギ、モミ等の香りを有する香料成分が挙げることができ、これらの香りを有するアロマオイル等を用いることができる。   In addition, the fragrance component is not particularly limited, and examples thereof include fragrance components having fragrances such as citrus, peppermint, lavender, black moji, scented cypress, cypress, cedar, fir, and aroma oils having these fragrances. Can be used.

本発明の包装袋によれば、被包装物から香料成分および水分が抜けにくくなり、長期保管を可能とすることができる。また、本発明に用いるフィルムは加工性に優れるため、被包装物を包装する包装袋とする際にラインスピードを上げた状態で製造を行うことができる。   According to the packaging bag of the present invention, it is difficult for the fragrance component and moisture to escape from the packaged item, and long-term storage is possible. Moreover, since the film used for this invention is excellent in workability, when it is set as the packaging bag which packages a to-be-packaged object, it can manufacture in the state which raised the line speed.

以下に、実施例を挙げて本発明を説明するが、本発明はこれに限定されるものではない。なお、本実施例における部および%は、特記しない限り重量基準である。   Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited thereto. In the examples, parts and% are based on weight unless otherwise specified.

実施例および比較例においては、フィルムの水蒸気透過度の測定、保湿性試験および保香性試験を行った。また、下記において実施例および比較例記載のフィルムA〜Dを用いて評価を行った。   In Examples and Comparative Examples, measurement of water vapor permeability, moisture retention test, and fragrance retention test of films were performed. Moreover, it evaluated using the film AD of an Example and a comparative example description below.

(実施例1)
実施例1のフィルムAとしては、OPP層とPVDC層とを有する積層体にCPP層を積層させたフィルムであって、積層体の厚さが20μm、CPP層の厚さが30μmのフィルムを用いた。なお、フィルムAは図1におけるA層がPVDC層、B層がOPP層、C層がCPP層であるフィルムである。また、下記においてヒートシールする場合にはCPP層を内側(おしぼり側)にしてヒートシールを行い、包装袋を形成した。
Example 1
The film A of Example 1 is a film in which a CPP layer is laminated on a laminate having an OPP layer and a PVDC layer, and the laminate has a thickness of 20 μm and the CPP layer has a thickness of 30 μm. It was. Film A in FIG. 1 is a film in which the A layer is a PVDC layer, the B layer is an OPP layer, and the C layer is a CPP layer. Moreover, in the following, when heat-sealing, heat sealing was performed with the CPP layer on the inside (wet towel side) to form a packaging bag.

(実施例2)
実施例2のフィルムBとしては、PET層とPVDC層とを有する積層体にCPP層を積層させたフィルムであって、積層体の厚さが12μm、CPP層の厚さが30μmのフィルムを用いた。なお、フィルムBは図1におけるA層がPVDC層、B層がOPP層、C層がCPP層であるフィルムである。また、下記においてヒートシールする場合にはCPP層を内側(おしぼり側)にしてヒートシールを行い、包装袋を形成した。
(Example 2)
The film B of Example 2 is a film in which a CPP layer is laminated on a laminate having a PET layer and a PVDC layer, and the laminate has a thickness of 12 μm and the CPP layer has a thickness of 30 μm. It was. Film B is a film in which the A layer in FIG. 1 is a PVDC layer, the B layer is an OPP layer, and the C layer is a CPP layer. Moreover, in the following, when heat-sealing, heat sealing was performed with the CPP layer on the inside (wet towel side) to form a packaging bag.

(比較例1)
比較例1のフィルムCとしては、厚さ25μmのOPP層に9gの和紙を積層させたものを用いた。なお、下記においてヒートシールする場合にはOPP層を内側(おしぼり側)にしてヒートシールを行い、包装袋を形成した。
(Comparative Example 1)
As the film C of Comparative Example 1, a film in which 9 g of Japanese paper was laminated on an OPP layer having a thickness of 25 μm was used. In the following, heat sealing was performed with the OPP layer on the inside (wet towel side) to form a packaging bag.

(比較例2)
比較例2のフィルムDとしては、厚さ20μmのOPP層と厚さ20μmのCPP層とを積層させたフィルムを用いた。なお、下記においてヒートシールする場合にはCPP層を内側(おしぼり側)にしてヒートシールを行い、包装袋を形成した。
また、フィルムの水蒸気透過度の測定、保湿性試験および保香性試験は次のように行った。
(Comparative Example 2)
As the film D of the comparative example 2, the film which laminated | stacked the 20-micrometer-thick OPP layer and the 20-micrometer-thick CPP layer was used. In addition, when heat-sealing in the following, the CPP layer was set inside (wet towel side) and heat-sealed to form a packaging bag.
Moreover, the measurement of the water-vapor-permeability of a film, the moisture retention test, and the aroma retention test were performed as follows.

(水蒸気透過度の測定)
フィルムA〜Dについて、JIS K 7129−5:2016に基づいて40℃、相対湿度90%の条件にて水蒸気透過度の測定を行った。結果を表2に示す。
(Measurement of water vapor permeability)
About film AD, the water-vapor-permeation rate was measured on the conditions of 40 degreeC and relative humidity 90% based on JISK7129-5: 2016. The results are shown in Table 2.

(保湿性試験)
フィルムA〜Dをそれぞれヒートシールすることにより不織布製のおしぼり(サイズ:255mm×270mm)を包装袋内に密封包装し、それぞれについて乾燥機にて40℃の条件にて加温保管した。保管前の重量と保管後の重量とを測定し、重量減少量から脱湿速度を求めた。結果を表2に示す。脱湿速度の値が小さいほど包装袋の保湿性が高いことを示す。
(Moisture retention test)
Each of the films A to D was heat-sealed, and a non-woven hand towel (size: 255 mm × 270 mm) was hermetically packaged in a packaging bag, and each was heated and stored in a dryer at 40 ° C. The weight before storage and the weight after storage were measured, and the dehumidification rate was determined from the weight loss. The results are shown in Table 2. It shows that the moisture retention of a packaging bag is so high that the value of a dehumidification rate is small.

また、脱湿速度からフィルムA〜Dを用いた包装袋により密封包装されたおしぼりの推定使用期限を算出した。ここで、表1に示すようにおしぼりの水分量と使用感の評価から、含水率が100%を下回ると使用感に劣り、乾いていると判断される。なお、表1に記載の結果は、255mm×270mm、乾燥重量が3.0gである不織布製のおしぼりを表1記載の含水量(含水率)として手触りによる使用感の評価を行い、下記評価基準により評価した結果である。
<評価基準>
○:おしぼりが十分に湿っている
△:おしぼりがやや乾いている
×:おしぼりが乾いている
Moreover, the estimated expiration date of the hand towel sealed and packaged by the packaging bag using the films A to D was calculated from the dehumidification rate. Here, as shown in Table 1, from the evaluation of the water content of the hand towel and the feeling of use, when the moisture content is less than 100%, it is judged that the feeling of use is inferior and dry. In addition, the results described in Table 1 evaluate the feeling of use by touching a wet towel made of non-woven fabric having a dry weight of 3.0 g (255 mm × 270 mm) as described in Table 1, and the following evaluation criteria It is the result evaluated by.
<Evaluation criteria>
○: The wet towel is sufficiently wet △: The wet towel is slightly dry ×: The wet towel is dry

Figure 2019181832
上記の脱湿速度でおしぼりの含水率が100%となる期間を算出し、これを40℃におけるおしぼりの推定使用期限として求めた。結果を表2に示す。
Figure 2019181832
The period during which the moisture content of the towel was 100% was calculated at the above dehumidification rate, and this was determined as the estimated expiration date of the towel at 40 ° C. The results are shown in Table 2.

表2に示すようにフィルムAまたはBにより構成される包装袋を用いた場合のおしぼりの推定使用期限が3〜5か月となり、フィルムCまたはDにより構成される包装袋を用いた場合のおしぼりの推定使用期限である1〜2か月よりも長期の保管が可能となることが分かった。   As shown in Table 2, the estimated expiration date for hand towels when using packaging bags made of film A or B is 3 to 5 months, and hand towels using packaging bags made of film C or D It has been found that storage for a longer period than the estimated expiration date of 1-2 months becomes possible.

(保香性試験)
フィルムA〜Dをそれぞれヒートシールすることにより賦香した不織布製のおしぼり(サイズ:255mm×270mm)を包装袋内に密封包装し、それぞれについて密封容器に入れ、23℃、相対湿度50%の条件で保管した。保管開始から1日後、2日後、6日後および17日後に密封容器内の臭いの有無を確認し、下記評価基準により評価した。結果を表2に示す。臭いがないほど包装袋の保香性が高いことを示す。
<評価基準>
A:臭わない
B:少し臭う
C:激しく臭う
(Aroma retention test)
Nonwoven fabric hand towels (size: 255 mm × 270 mm) scented by heat-sealing each of the films A to D are sealed and packed in a packaging bag, and each is placed in a sealed container at 23 ° C. and a relative humidity of 50%. Stored in. After 1 day, 2 days, 6 days and 17 days after the start of storage, the presence or absence of odor in the sealed container was confirmed and evaluated according to the following evaluation criteria. The results are shown in Table 2. It shows that the fragrance retention property of a packaging bag is so high that there is no smell.
<Evaluation criteria>
A: Not smelling B: Smelling a little C: Smelling intensely

Figure 2019181832
Figure 2019181832

表2に示す結果よりフィルムA(実施例1)およびフィルムB(実施例2)は、フィルムC(比較例1)およびフィルムD(比較例2)よりも水蒸気透過度が低く、さらにフィルムA(実施例1)およびフィルムB(実施例2)を用いた包装袋は、フィルムC(比較例1)およびフィルムD(比較例2)を用いた包装袋よりも保湿性および保香性に優れることが分かった。   From the results shown in Table 2, film A (Example 1) and film B (Example 2) have a lower water vapor permeability than films C (Comparative Example 1) and Film D (Comparative Example 2). The packaging bag using Example 1) and film B (Example 2) has better moisture retention and flavor retention than the packaging bag using film C (Comparative Example 1) and film D (Comparative Example 2). I understood.

2…フィルム、4…A層、6…B層、8…積層体、10…C層
2 ... film, 4 ... A layer, 6 ... B layer, 8 ... laminate, 10 ... C layer

Claims (7)

2軸延伸ポリプロピレン層とポリ塩化ビニリデン層との積層体またはポリエチレンテレフタラート層とポリ塩化ビニリデン層との積層体に、キャストポリプロピレン層またはリニアローデンシティポリエチレン層が積層したフィルムを袋状とした包装袋。   A packaging bag in the form of a bag made of a laminate of a biaxially stretched polypropylene layer and a polyvinylidene chloride layer or a laminate of a polyethylene terephthalate layer and a polyvinylidene chloride layer and a cast polypropylene layer or a linear low-density polyethylene layer. . 前記フィルムの水蒸気透過度は、4.0g/(m・day)以下である請求項1記載の包装袋。 The packaging bag according to claim 1, wherein the water vapor permeability of the film is 4.0 g / (m 2 · day) or less. 前記積層体の厚みは、5〜80μm、前記キャストポリプロピレン層またはリニアローデンシティポリエチレン層の厚みは10〜80μmである請求項1または2記載の包装袋。   The packaging bag according to claim 1 or 2, wherein the laminate has a thickness of 5 to 80 µm, and the cast polypropylene layer or the linear low-density polyethylene layer has a thickness of 10 to 80 µm. 前記キャストポリプロピレン層またはリニアローデンシティポリエチレン層が袋の内側となる請求項1〜3の何れか一項に記載の包装袋。   The packaging bag according to any one of claims 1 to 3, wherein the cast polypropylene layer or the linear low-density polyethylene layer is inside the bag. おしぼりと、請求項1〜4の何れか一項に記載の包装袋とを含み、前記包装袋により前記おしぼりを密封包装したおしぼり個装体。   A hand towel individual package comprising a hand towel and the packaging bag according to any one of claims 1 to 4, wherein the hand towel is sealed and packaged by the packaging bag. 香気製品と、請求項1〜4の何れか一項に記載の包装袋とを含み、前記包装袋により香気製品を密封包装した香気製品個装体。   An aroma product individual package comprising an aroma product and the packaging bag according to any one of claims 1 to 4, wherein the aroma product is hermetically packaged by the packaging bag. 請求項1〜4の何れか一項に記載の包装袋を製造するための包装袋の製造方法であって、
2軸延伸ポリプロピレン層とポリ塩化ビニリデン層との積層体またはポリエチレンテレフタラート層とポリ塩化ビニリデン層との積層体と、キャストポリプロピレン層またはリニアローデンシティポリエチレン層とを積層させる積層工程と、
前記フィルムをヒートシールすることにより袋状とするヒートシール工程と
を含む包装袋の製造方法。
A method for producing a packaging bag for producing the packaging bag according to any one of claims 1 to 4,
A lamination step of laminating a laminate of a biaxially oriented polypropylene layer and a polyvinylidene chloride layer or a laminate of a polyethylene terephthalate layer and a polyvinylidene chloride layer, and a cast polypropylene layer or a linear low density polyethylene layer;
The manufacturing method of a packaging bag including the heat-sealing process made into a bag shape by heat-sealing the said film.
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Publication number Priority date Publication date Assignee Title
JP2023010081A (en) * 2021-07-09 2023-01-20 株式会社マキ商会 Bag for storing wet towel and in-bag wet towel

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JPS5296363U (en) * 1976-01-16 1977-07-19
JPS57184693U (en) * 1981-05-20 1982-11-24
JPH08276545A (en) * 1995-04-05 1996-10-22 Riyouhan Hoso Syst Kk Composite film for packing rice cake
JP2001315281A (en) * 2000-05-12 2001-11-13 Kaito Kagaku Kogyo Kk Tearable film and tearable packaging bag

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Publication number Priority date Publication date Assignee Title
JPS5296363U (en) * 1976-01-16 1977-07-19
JPS57184693U (en) * 1981-05-20 1982-11-24
JPH08276545A (en) * 1995-04-05 1996-10-22 Riyouhan Hoso Syst Kk Composite film for packing rice cake
JP2001315281A (en) * 2000-05-12 2001-11-13 Kaito Kagaku Kogyo Kk Tearable film and tearable packaging bag

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023010081A (en) * 2021-07-09 2023-01-20 株式会社マキ商会 Bag for storing wet towel and in-bag wet towel

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