JP2014141260A - Packaging material - Google Patents

Packaging material Download PDF

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JP2014141260A
JP2014141260A JP2013008969A JP2013008969A JP2014141260A JP 2014141260 A JP2014141260 A JP 2014141260A JP 2013008969 A JP2013008969 A JP 2013008969A JP 2013008969 A JP2013008969 A JP 2013008969A JP 2014141260 A JP2014141260 A JP 2014141260A
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Prior art keywords
porous film
bag body
filter
packaging material
dust
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JP2013008969A
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JP6121174B2 (en
Inventor
Masaharu Amamiya
正治 雨宮
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Disco Corp
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Disco Abrasive Systems Ltd
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Priority to JP2013008969A priority Critical patent/JP6121174B2/en
Priority to TW102143245A priority patent/TW201429808A/en
Priority to KR1020130149858A priority patent/KR102015144B1/en
Priority to CN201310741699.2A priority patent/CN103935632B/en
Priority to DE102014200688.0A priority patent/DE102014200688A1/en
Publication of JP2014141260A publication Critical patent/JP2014141260A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/263—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for ventilating the contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
    • B65D81/268—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being enclosed in a small pack, e.g. bag, included in the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2205/00—Venting means

Abstract

PROBLEM TO BE SOLVED: To provide a packaging material capable of properly preventing moisture intrusion during transportation.SOLUTION: A packaging material includes: a bag body (11) formed by a sheet which accommodates a packed object (2); and a filter (12) disposed at an air hole (111) of the bag body. The filter includes: a porous film (122) which is disposed so as to close the air hole, allows air to pass therethrough, and prevents water and dust from entering; and a dehumidification layer (123) which is formed at the inner side of the porous film so as to cover an entire surface of the porous film and absorbs moisture passing through the porous film and entering into the bag body.

Description

本発明は、精密機器などの梱包に使用される梱包材に関する。   The present invention relates to a packing material used for packing precision instruments and the like.

半導体デバイスの製造に使用されるレーザー発振器などの精密機器は、極めて高い精度で製造されている。そのため、輸送の際に衝撃を受けたり、塵や埃などが付着したりすると、期待される性能を発揮できなくなる恐れがある。一般には、ビニールシートや衝撃吸収材などで梱包してから、木箱や段ボール箱などの輸送容器に収容することで、輸送の際に精密機器を保護している。   Precision instruments such as laser oscillators used for manufacturing semiconductor devices are manufactured with extremely high accuracy. Therefore, if an impact is applied during transportation or dust or dirt adheres, the expected performance may not be exhibited. In general, after packing with a vinyl sheet or a shock absorbing material, it is housed in a transport container such as a wooden box or a cardboard box to protect the precision instrument during transport.

しかしながら、気密性の高いビニールシートなどの梱包材で梱包して、空輸などの方法で精密機器を輸送すると、梱包材の内外に生じる気圧差で梱包材は破損する。気圧差による破損を防ぐために梱包材に孔を開けることも考えられるが、この方法では、精密機器への塵や埃の付着を完全に防ぐことはできない。そこで、多孔質フィルムによるフィルター（例えば、特許文献１参照）を梱包材の通気孔に取り付け、塵や埃の付着を防いだ上で、梱包材の内外に生じる気圧差を緩和する構成が検討されている。   However, if packing is performed with a packing material such as a highly airtight vinyl sheet and the precision instrument is transported by a method such as air transportation, the packing material is damaged due to a pressure difference generated inside and outside the packing material. Although it is conceivable to make a hole in the packing material in order to prevent damage due to a pressure difference, this method cannot completely prevent dust and dirt from adhering to precision equipment. In view of this, a configuration in which a filter made of a porous film (see, for example, Patent Document 1) is attached to the air vent of the packaging material to prevent dust and dust from adhering to it and to reduce the pressure difference generated inside and outside the packaging material has been studied. ing.

特開２００９−７８８６６号公報JP 2009-78866 A

ところで、上述の精密機器は、湿気に対して弱いことが多い。例えば、半導体デバイスの製造に使用されるレーザー発振器では、僅かな湿度の上昇で不具合が発生してしまうこともある。上述した多孔質フィルムによるフィルターは、空気と共に水蒸気を通過させてしまうので、輸送の際の湿気を防ぐ目的には有効でない。   By the way, the above precision instruments are often vulnerable to moisture. For example, in a laser oscillator used for manufacturing a semiconductor device, a slight increase in humidity may cause a problem. The above-described filter made of a porous film is not effective for the purpose of preventing moisture during transportation because it allows water vapor to pass through along with air.

本発明はかかる点に鑑みてなされたものであり、輸送の際の湿気を適切に防ぐことが可能な梱包材を提供することを目的とする。   This invention is made | formed in view of this point, and it aims at providing the packaging material which can prevent the moisture at the time of transport appropriately.

本発明の梱包材は、梱包材であって、梱包時には密封されて被梱包物を収容するシートで形成された袋体と、梱包時に該袋体の内外を通気するために該袋体に形成された通気孔と、該通気孔に配設されたフィルターと、から構成され、該フィルターは、該通気孔を塞ぐように配設され空気は通すが水及び塵埃の進入を防止する多孔質フィルムと、該多孔質フィルムの内側に該多孔質フィルム全面を覆って形成され該多孔質フィルムを通過して進入する湿気を吸収する除湿層と、から構成されていることを特徴とする。   The packaging material of the present invention is a packaging material, which is formed in a bag body that is sealed at the time of packaging and formed of a sheet that accommodates an object to be packed, and is formed in the bag body to ventilate the inside and outside of the bag body at the time of packaging. And a filter disposed in the ventilation hole. The filter is disposed so as to close the ventilation hole, and allows air to pass therethrough but prevents water and dust from entering. And a dehumidifying layer that covers the entire surface of the porous film and absorbs moisture that enters through the porous film.

この構成によれば、空気を通し、水（液体）及び塵埃の進入を防止する多孔質フィルムと、多孔質フィルムを通過して進入する湿気（気体、水蒸気）を吸収する除湿層とを備えるフィルターを、被梱包物を収容する袋体の通気孔に配設するので、袋体内部への水及び塵埃の進入、並びに湿気の進入を防止できる。よって、袋体内部の高湿化を防止できる。   According to this configuration, the filter includes a porous film that allows air to pass therethrough and prevents water (liquid) and dust from entering, and a dehumidifying layer that absorbs moisture (gas, water vapor) that enters through the porous film. Is disposed in the ventilation hole of the bag body that accommodates the article to be packed, so that the entry of water and dust into the bag body and the ingress of moisture can be prevented. Therefore, high humidity inside the bag can be prevented.

本発明によれば、輸送の際の湿気を適切に防ぐことが可能な梱包材を提供できる。   ADVANTAGE OF THE INVENTION According to this invention, the packaging material which can prevent appropriately the moisture at the time of transport can be provided.

本実施の形態に係る梱包材の全体構成を示す模式図である。It is a schematic diagram which shows the whole structure of the packing material which concerns on this Embodiment. 本実施の形態に係る梱包材に使用されるフィルターの構成例を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structural example of the filter used for the packing material which concerns on this Embodiment. フィルターの変形例を示す断面模式図である。It is a cross-sectional schematic diagram which shows the modification of a filter.

以下、添付図面を参照して、本発明の実施の形態について説明する。なお、以下においては、レーザー発振器などの精密機器の梱包に使用される梱包材の例を示すが、本発明に係る梱包材の用途は特に限定されない。   Embodiments of the present invention will be described below with reference to the accompanying drawings. In addition, although the example of the packaging material used for packaging of precision instruments, such as a laser oscillator, is shown below, the use of the packaging material which concerns on this invention is not specifically limited.

図１は、本実施の形態に係る梱包材の全体構成を示す模式図である。図１では、レーザー発振器などの被梱包物２を梱包する梱包材１を示している。図１に示すように、梱包材１は、略直方体状の被梱包物２を包む袋体１１と、袋体１１に取り付けられたフィルター１２とを備えている。なお、被梱包物２の形状は特に限定されず、球状、板状などでも良い。   FIG. 1 is a schematic diagram showing the overall configuration of the packaging material according to the present embodiment. FIG. 1 shows a packing material 1 for packing an object 2 to be packed such as a laser oscillator. As shown in FIG. 1, the packaging material 1 includes a bag body 11 that wraps a substantially rectangular parallelepiped packaged article 2 and a filter 12 attached to the bag body 11. In addition, the shape of the to-be-packaged object 2 is not specifically limited, A spherical shape, plate shape, etc. may be sufficient.

袋体１１は、ポリ塩化ビニルやポリエチレンなどの合成樹脂によるシート（フィルム）を袋状に加工したものであり、塵や埃に加え、水や油分（液体）、空気や水蒸気（気体）などを通過させないように構成されている。被梱包物２の梱包においては、袋体１１の口部（不図示）から被梱包物２を袋体１１に挿入し、当該口部をヒートシール（熱シール）などの方法で閉じる。このように、被梱包物２を包むようにして袋体１１を密封することで、被梱包物２への塵や埃、水や油分などの付着を防止できる。   The bag body 11 is a sheet (film) made of a synthetic resin such as polyvinyl chloride or polyethylene and processed into a bag shape. In addition to dust and dirt, water, oil (liquid), air, water vapor (gas), etc. It is configured not to pass through. In packing the article to be packed 2, the article to be packed 2 is inserted into the bag body 11 from the mouth portion (not shown) of the bag body 11, and the mouth portion is closed by a method such as heat sealing (heat sealing). Thus, by sealing the bag 11 so as to wrap the article 2 to be packed, adhesion of dust, dust, water, oil, etc. to the article 2 can be prevented.

図２は、本実施の形態に係る梱包材に使用されるフィルターの構成例を示す断面模式図である。図１及び図２に示すように、フィルター１２は、両端部に開口部１２１ａ，１２１ｂを有する円筒状の筐体１２１を備えている。筐体１２１は、袋体１１と同様に、塵や埃、水や油分（液体）、空気や水蒸気（気体）などを通過させないように構成されている。筐体１２１は、一端側の開口部１２１ａが袋体１１の外側に露出され、他端側の開口部１２１ｂが袋体１１の内側に位置付けられるよう、袋体１１の通気孔１１１に固定されている。筐体１２１の外周部１２１ｃは、通気孔１１１の内周部に隙間なく接着されている。   FIG. 2 is a schematic cross-sectional view showing a configuration example of a filter used in the packaging material according to the present embodiment. As shown in FIGS. 1 and 2, the filter 12 includes a cylindrical casing 121 having openings 121a and 121b at both ends. The housing 121 is configured not to pass dust, dirt, water, oil (liquid), air, water vapor (gas), or the like, like the bag body 11. The housing 121 is fixed to the vent hole 111 of the bag body 11 so that the opening 121a on one end side is exposed outside the bag body 11 and the opening 121b on the other end side is positioned inside the bag body 11. Yes. The outer peripheral part 121 c of the housing 121 is bonded to the inner peripheral part of the air hole 111 without a gap.

図２に示すように、筐体１２１の開口部１２１ａには、開口部１２１ａを塞ぐ多孔質フィルム１２２が設けられている。多孔質フィルム１２２は、空気や水蒸気（気体）などを通過させ、水や油分（液体）、塵や埃（固体）などを通過させない微細な孔を有するフィルム（シート）である。このような多孔質フィルム１２２として、例えば、ＰＴＦＥ（ポリテトラフルオロエチレン）、ポリクロロトリフルオロエチレン、テトラフルオロエチレン−ヘキサフルオロプロピレン共重合体、テトラフルオロエチレン−エチレン共重合体などのフッ素樹脂で形成されたフィルムを用いることができる。   As shown in FIG. 2, the opening 121a of the housing 121 is provided with a porous film 122 that closes the opening 121a. The porous film 122 is a film (sheet) having fine holes that allows air, water vapor (gas), etc. to pass therethrough and does not allow water, oil (liquid), dust, dust (solid), etc. to pass through. For example, the porous film 122 is formed of a fluororesin such as PTFE (polytetrafluoroethylene), polychlorotrifluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-ethylene copolymer, or the like. Film can be used.

上述のように、フィルター１２の開口部１２１ａは、多孔質フィルム１２２で塞がれている。よって、塵や埃（固体）、水や油分（液体）などがフィルター１２を通じて袋体１１の内部に進入することはない。一方で、多孔質フィルム１２２は気体を通過させるので、袋体１１を密封してもフィルター１２を通じて空気が出入し、袋体１１の内部と外部との気圧差は緩和される。このため、輸送の際の気圧差に起因する梱包材１の破損を防止できる。   As described above, the opening 121 a of the filter 12 is closed with the porous film 122. Therefore, dust, dust (solid), water, oil (liquid), and the like do not enter the bag 11 through the filter 12. On the other hand, since the porous film 122 allows gas to pass therethrough, even if the bag body 11 is sealed, air enters and exits through the filter 12, and the pressure difference between the inside and the outside of the bag body 11 is alleviated. For this reason, it is possible to prevent the packaging material 1 from being damaged due to a pressure difference during transportation.

ところで、空気中の水分（湿気、水蒸気）は、空気と共に多孔質フィルムを通過し、袋体の内部に進入してしまう。そのため、多孔質フィルムで構成されるフィルターを備えた梱包材を使用する場合、湿気に弱い被梱包物の輸送において問題となる。例えば、半導体デバイスの製造に使用されるレーザー発振器などでは、僅かな湿度の上昇で不具合が発生してしまうこともある。そこで、本実施の形態に係る梱包材１では、多孔質フィルム１２２を通過して袋体１１に流れ込む空気の流路に除湿層１２３を配置する。   By the way, moisture (humidity, water vapor) in the air passes through the porous film together with the air and enters the inside of the bag body. Therefore, when using the packing material provided with the filter comprised with a porous film, it becomes a problem in transport of the to-be-packaged goods weak to moisture. For example, in a laser oscillator or the like used for manufacturing a semiconductor device, a problem may occur due to a slight increase in humidity. Therefore, in the packaging material 1 according to the present embodiment, the dehumidifying layer 123 is disposed in the air flow path that passes through the porous film 122 and flows into the bag body 11.

筐体１２１の開口部１２１ｂには、空気を通過させるネット１２４が設けられている。筐体１２１内において多孔質フィルム１２２とネット１２４とで挟まれる領域には、シリカゲルなどの乾燥剤による除湿層１２３が配置されている。具体的には、除湿層１２３は、多孔質フィルム１２２及びネット１２４の全面を覆うように形成されている。ネット１２４の網目は、除湿層１２３が筐体１２１から脱落しない程度に細かくなっている。   The opening 121b of the housing 121 is provided with a net 124 that allows air to pass through. A dehumidifying layer 123 made of a desiccant such as silica gel is disposed in a region sandwiched between the porous film 122 and the net 124 in the housing 121. Specifically, the dehumidifying layer 123 is formed so as to cover the entire surface of the porous film 122 and the net 124. The mesh of the net 124 is so fine that the dehumidifying layer 123 does not fall off the housing 121.

図２において矢印Ａで示すように、多孔質フィルム１２２を通過した空気は、筐体１２１内の除湿層１２３を通じて袋体１１の内部へと供給される。この時、空気中の湿気は除湿層１２３で除去されるので、十分に乾燥した空気が袋体１１の内部へと流れ込む。その結果、袋体１１内の湿度は十分に低く維持される。袋体１１の内部の任意の位置に乾燥剤を配置する構成では、通気孔１１１の周辺で局所的に高湿化されてしまう恐れもあるが、本実施の形態の構成では、袋体１１の内部へと流れ込む空気は、除湿層１２３で必ず除湿されるので、そのような心配もない。   As shown by an arrow A in FIG. 2, the air that has passed through the porous film 122 is supplied to the inside of the bag body 11 through the dehumidifying layer 123 in the housing 121. At this time, moisture in the air is removed by the dehumidifying layer 123, so that sufficiently dry air flows into the bag body 11. As a result, the humidity in the bag 11 is kept sufficiently low. In the configuration in which the desiccant is disposed at an arbitrary position inside the bag body 11, there is a possibility that the moisture may be locally increased around the vent hole 111. However, in the configuration of the present embodiment, the bag body 11 Since the air flowing into the interior is always dehumidified by the dehumidifying layer 123, there is no such concern.

なお、筐体１２１は、筐体１２１内を流れる空気の流路が十分に長くなるよう、所定の高さ（開口部１２１ａから開口部１２１ｂまでの距離に相当）を有している。そのため、多孔質フィルム１２２を通じて筐体１２１内に流れ込んだ空気は、筐体１２１内を流れる間に適切に除湿される。また、筐体１２１は、空気を通過させないように構成されているので、図２において矢印Ｂで示すような空気の流れが生じることはない。よって、多孔質フィルム１２２を通じて筐体１２１内に流れ込んだ空気を、除湿層１２３で適切に除湿できる。   Note that the housing 121 has a predetermined height (corresponding to a distance from the opening 121a to the opening 121b) so that the flow path of the air flowing through the housing 121 is sufficiently long. Therefore, the air that has flowed into the housing 121 through the porous film 122 is appropriately dehumidified while flowing through the housing 121. Further, since the casing 121 is configured not to allow air to pass therethrough, an air flow as indicated by an arrow B in FIG. 2 does not occur. Therefore, the air flowing into the housing 121 through the porous film 122 can be appropriately dehumidified by the dehumidifying layer 123.

このように、本実施の形態に係る梱包材１においては、空気を通し、水（液体）及び塵埃の進入を防止する多孔質フィルム１２２と、多孔質フィルム１２２を通過して進入する湿気（気体、水蒸気）を吸収する除湿層１２４とを備えるフィルター１２を、被梱包物２を収容する袋体１１の通気孔１１１に配設するので、袋体１１内部への水（液体）及び塵埃の進入、並びに湿気（水蒸気）の進入を防止できる。よって、袋体１１内部の高湿化を防止できる。   Thus, in the packaging material 1 according to the present embodiment, the porous film 122 that allows air to pass therethrough and prevents water (liquid) and dust from entering, and moisture (gas) that passes through the porous film 122 and enters. Since the filter 12 including the dehumidifying layer 124 that absorbs water vapor is disposed in the vent hole 111 of the bag body 11 that accommodates the article 2 to be packed, water (liquid) and dust enter the bag body 11. In addition, moisture (water vapor) can be prevented from entering. Therefore, high humidity inside the bag body 11 can be prevented.

なお、本発明は上記実施の形態の記載に限定されず、種々変更して実施可能である。例えば、被梱包物への塵や埃などの付着をより適切に防ぐため、梱包材に２枚の多孔質フィルムを備えるフィルターを適用しても良い。図３は、フィルターの変形例を示す断面模式図である。図３に示すフィルター１３は、両端部に開口部１３１ａ，１３１ｂを有する円筒状の筐体１３１を備えている。   In addition, this invention is not limited to description of the said embodiment, A various change can be implemented. For example, a filter including two porous films as a packing material may be applied in order to more appropriately prevent dust and dirt from adhering to an object to be packed. FIG. 3 is a schematic cross-sectional view showing a modification of the filter. The filter 13 shown in FIG. 3 includes a cylindrical casing 131 having openings 131a and 131b at both ends.

筐体１３１の開口部１３１ａには、開口部１３１ａを塞ぐ多孔質フィルム１３２が設けられており、筐体１３１の開口部１３１ｂには、開口部１３１ｂを塞ぐ多孔質フィルム１３４が設けられている。筐体１３１内において、多孔質フィルム１３２，１３４で挟まれる領域には、除湿層１３３が配置されている。すなわち、変形例に係るフィルター１３は、上記実施の形態のフィルター１２のネット１２４を多孔質フィルム１３４に置き換えた構成を有している。このフィルター１３は、筐体１３１の両端部にそれぞれ多孔質フィルム１３２，１３４を備えるので、２枚の多孔質フィルムによって袋体１１内への塵や埃などの進入をより適切に防ぐことができる。   The opening 131a of the housing 131 is provided with a porous film 132 that closes the opening 131a, and the opening 131b of the housing 131 is provided with a porous film 134 that closes the opening 131b. A dehumidifying layer 133 is disposed in a region between the porous films 132 and 134 in the housing 131. That is, the filter 13 according to the modification has a configuration in which the net 124 of the filter 12 of the above embodiment is replaced with a porous film 134. Since the filter 13 includes the porous films 132 and 134 at both ends of the casing 131, the two porous films can more appropriately prevent entry of dust, dust, and the like into the bag body 11. .

上記実施の形態では、多孔質フィルムと除湿層とを有するフィルターを袋体に設けた梱包材を示しているが、梱包材の構成はこれに限られない。例えば、袋体に替えて、プラスチックや金属などで構成された気密性のあるハードケースにフィルターを取り付け、梱包材としても良い。   In the said embodiment, although the packaging material which provided the filter which has a porous film and a dehumidification layer in the bag body is shown, the structure of a packaging material is not restricted to this. For example, instead of the bag body, a filter may be attached to an airtight hard case made of plastic, metal, or the like, and used as a packaging material.

また、上記実施の形態では、１個のフィルターを備える梱包材を例示しているが、フィルターの数は任意である。また、上記実施の形態では、円筒状の筐体を有するフィルターを例示しているが、フィルターの形状も限定されない。ただし、適切な除湿を実現するためには、十分な高さを有する形状とするのが望ましい。また、多孔質フィルムやネットの表側（除湿層とは反対側）に剥離可能な通気性のないシールを貼着しておき、使用の際にシールを剥がすようにしても良い。この構成では、使用前における除湿層の劣化を防止できる。   Moreover, in the said embodiment, although the packaging material provided with one filter is illustrated, the number of filters is arbitrary. Moreover, in the said embodiment, although the filter which has a cylindrical housing | casing is illustrated, the shape of a filter is not limited. However, in order to achieve appropriate dehumidification, a shape having a sufficient height is desirable. Alternatively, a peelable non-breathable seal may be attached to the front side (opposite to the dehumidifying layer) of the porous film or net, and the seal may be peeled off during use. With this configuration, it is possible to prevent deterioration of the dehumidifying layer before use.

本発明は、精密機器などを梱包する際に有用である。   The present invention is useful when packing precision instruments and the like.

１ 梱包材
２ 被梱包物
１１ 袋体
１２，１３ フィルター
１１１ 通気孔
１２１，１３１ 筐体
１２１ａ，１２１ｂ，１３１ａ，１３１ｂ 開口部
１２１ｃ 外周部
１２２，１３２，１３４ 多孔質フィルム
１２３，１３３ 除湿層
１２４ ネット DESCRIPTION OF SYMBOLS 1 Packing material 2 Packaged object 11 Bag body 12,13 Filter 111 Vent 121,131 Case 121a, 121b, 131a, 131b Opening part 121c Outer peripheral part 122,132,134 Porous film 123,133 Dehumidification layer 124 Net

Claims (1)

梱包材であって、梱包時には密封されて被梱包物を収容するシートで形成された袋体と、梱包時に該袋体の内外を通気するために該袋体に形成された通気孔と、該通気孔に配設されたフィルターと、から構成され、
該フィルターは、該通気孔を塞ぐように配設され空気は通すが水及び塵埃の進入を防止する多孔質フィルムと、該多孔質フィルムの内側に該多孔質フィルム全面を覆って形成され該多孔質フィルムを通過して進入する湿気を吸収する除湿層と、から構成されている梱包材。 A packaging material that is sealed at the time of packaging and formed of a sheet that accommodates an object to be packed; a vent hole formed in the bag body for venting the inside and outside of the bag at the time of packaging; and A filter disposed in the ventilation hole,
The filter is disposed so as to close the vent hole, allows air to pass therethrough but prevents water and dust from entering, and covers the entire surface of the porous film inside the porous film. A packaging material comprising a dehumidifying layer that absorbs moisture entering through the quality film.
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