JPH05200931A - File member having water absorbability and air permeability and production thereof - Google Patents
File member having water absorbability and air permeability and production thereofInfo
- Publication number
- JPH05200931A JPH05200931A JP4735291A JP4735291A JPH05200931A JP H05200931 A JPH05200931 A JP H05200931A JP 4735291 A JP4735291 A JP 4735291A JP 4735291 A JP4735291 A JP 4735291A JP H05200931 A JPH05200931 A JP H05200931A
- Authority
- JP
- Japan
- Prior art keywords
- film
- water
- absorbing
- air
- roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Packages (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、適当な通気性と吸水性
とを有するフィルム部材及びそのフィルム部材の製造方
法に関し、特に、魚や肉等から吹き出した水分を通気孔
から外部に排出して蒸発させつつ余剰の水分を吸収する
ことにより、包装した魚や肉等の腐食を抑制できるフィ
ルム部材及びそのフィルム部材の製造方法に係る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film member having appropriate air permeability and water absorbability and a method for producing the film member, and more particularly, the water blown out from fish or meat is discharged to the outside through a vent hole. The present invention relates to a film member capable of suppressing corrosion of packaged fish, meat, and the like by absorbing excess water while being evaporated, and a method for manufacturing the film member.
【０００２】[0002]
【従来の技術】従来、魚や肉等の鮮度を保つために、各
種の食品包装用フィルムが提供されている。かかる包装
用フィルムの原材料としては、例えば、ポリ塩化ビニリ
デンを使用したものがあり、これに、脂肪酸誘導体等の
柔軟剤とエポキシ化植物油等の安定剤とを加えてフィル
ム状に成形している。2. Description of the Related Art Conventionally, various food packaging films have been provided to maintain the freshness of fish and meat. As a raw material for such a packaging film, for example, polyvinylidene chloride is used, and a softening agent such as a fatty acid derivative and a stabilizer such as epoxidized vegetable oil are added thereto to form a film.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の食品包装用フィルムにあっては、ポリ塩化ビ
ニリデン等の混合物による単体構造からなっていて、水
ばかりでなく空気もほとんど通さない構造となっていた
ため、密封するように包み込んで包装した魚や肉等から
水分が吹き出すと、その水分がフィルム内に残留してし
まい、その水分に微生物が付着して繁殖し、魚や肉等の
腐食が早期に進行してしまうという課題があった。However, such a conventional food packaging film has a simple structure composed of a mixture of polyvinylidene chloride or the like and has a structure in which not only water but also air is almost impermeable. Therefore, if water comes out from the fish or meat that has been wrapped and wrapped in a sealed manner, the water will remain in the film, microorganisms will adhere to the water and propagate, and corrosion of fish and meat will occur early. There was a problem that it progressed to.
【０００４】本発明は、かかる従来の課題に鑑みてなさ
れたものであり、包装した魚や肉等から吹き出した水分
を通気孔から外部に蒸発させると共に、フィルム内に残
留した余剰の水分を吸収できるようにすることにより、
吹き出した水分に微生物が付着して繁殖するのを防止
し、魚や肉等の腐食を抑制して長期保存ができるように
することを目的としている。The present invention has been made in view of the above conventional problems, and it is possible to evaporate the moisture blown from the packed fish, meat, etc. to the outside from the ventilation holes and absorb the excess moisture remaining in the film. By doing so
The purpose of the present invention is to prevent microorganisms from adhering to the blown-out water to propagate and suppress corrosion of fish, meat, etc., so that they can be stored for a long period of time.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明における吸水・通気性を有するフィルム部材
は、基材フィルムに被覆フィルムを重ね合わせて一体形
成したフィルム部材において、前記基材フィルムは、水
分を吸収して空気を通す吸水・通気性部材で形成すると
共に、前記被覆フィルムには、その全面に多数の通気孔
を穿設したことを特徴としている。In order to achieve the above object, a film member having water absorption / air permeability according to the present invention is a film member in which a covering film is superposed on a base film to be integrally formed. The film is formed of a water-absorbing / breathable member that absorbs moisture and allows air to pass through, and the coating film is characterized in that a large number of ventilation holes are formed on the entire surface thereof.
【０００６】そして、前記被覆フィルムは、前記吸水・
通気性部材の材質よりも融点が低い熱可塑性樹脂で形成
し、その被覆フィルムの全面に多数の通気孔を穿設して
もよい。[0006] And, the coating film, the water absorption ·
It may be formed of a thermoplastic resin having a lower melting point than the material of the breathable member, and a large number of vent holes may be formed on the entire surface of the covering film.
【０００７】また、本発明における吸水・通気性を有す
るフィルム部材の製造方法は、水分を吸収して空気を通
す吸水・通気性部材で形成された基材フィルムに被覆フ
ィルムを重ね合わせて一体に形成した後、外周面に多数
の穿孔針を設けた突起ロールと外周面が平滑な平滑ロー
ルとが回転接触する間に、前記被覆フィルムを前記突起
ロール側に配して通過させ、前記穿孔針の刺し込みによ
り被覆フィルムのみに通気孔を穿設することを特徴とし
ている。Further, the method for producing a film member having water absorption / breathability according to the present invention is a method in which a covering film is superposed on a base film formed of a water absorption / breathable member which absorbs moisture and allows air to pass therethrough. After forming, while the protruding roll provided with a large number of piercing needles on the outer peripheral surface and the smooth roll having a smooth outer peripheral surface are in rotary contact, the coating film is arranged on the protruding roll side and passed through the piercing needle. It is characterized in that the ventilation holes are formed only in the covering film by piercing.
【０００８】そして、前記被覆フィルムを前記吸水・通
気性部材の材質よりも融点が低い熱可塑性樹脂で形成
し、外周面に多数の針状突起を設け且つ前記熱可塑性樹
脂のみを融解できる温度に過熱された突起ロールと外周
面が平滑な平滑ロールとが回転する間に、前記被覆フィ
ルムを前記突起ロール側に配して通過させ、前記針状突
起の熱により被覆フィルムを溶かして当該被覆フィルム
のみに通気孔を穿設することもできる。The coating film is made of a thermoplastic resin having a melting point lower than that of the material of the water-absorbing / breathable member, is provided with a large number of needle-like protrusions on the outer peripheral surface, and has a temperature at which only the thermoplastic resin can be melted. While the overheated protrusion roll and the smooth roll having a smooth outer peripheral surface are rotated, the coating film is arranged on the protrusion roll side and allowed to pass, and the coating film is melted by the heat of the needle-shaped protrusions. It is also possible to form a ventilation hole only in the hole.
【０００９】さらに、レーザ光線を発射できるレーザ装
置の前に、熱可塑性樹脂で形成された前記被覆フィルム
を当該レーザ装置側に配して通過させ、前記レーザ光線
の熱により被覆フィルムを溶かして当該被覆フィルムの
みに通気孔を穿設するようにしてもよい。Further, in front of a laser device capable of emitting a laser beam, the coating film formed of a thermoplastic resin is arranged on the laser device side and allowed to pass therethrough, and the coating film is melted by the heat of the laser beam. Vents may be formed only in the covering film.
【００１０】[0010]
【作用】このフィルム部材で包装した魚や肉等から水分
が吹き出すと、その水分の多くは通気孔を通って外部に
吹き出し、大気中に蒸発する一方、フィルム内に残留し
た余剰の水分は基材フィルムに吸収される。従って、吹
き出した水分が魚や肉等の表面に残留することがなく、
その水分に微生物が付着して繁殖することがないから、
微生物等による魚や肉等の腐食を抑制することができ
る。When water is blown out from fish, meat, etc. wrapped with this film member, most of the water is blown out through the ventilation holes and evaporated into the atmosphere, while the excess water remaining in the film is the base material. Absorbed by the film. Therefore, the spouted water does not remain on the surface of fish, meat, etc.
Since microorganisms do not attach to the water and propagate,
Corrosion of fish, meat, etc. by microorganisms can be suppressed.
【００１１】また、被覆フィルムを突起ロール側に配し
て当該突起ロールと平滑ロールとの間に通過させること
により、穿孔針が被覆フィルム側から刺し込まれて平滑
ロールの表面に当接する。このとき、穿孔針の先端は、
被覆フィルムを貫通するが、平滑ロールの表面に当接し
て基材フィルムは貫通し得ないため、基材フィルムには
孔を開けないで被覆フィルムのみに通気孔を穿孔するこ
とができる。Further, by arranging the coating film on the protrusion roll side and passing it between the protrusion roll and the smooth roll, the perforation needle is pierced from the coating film side and abuts on the surface of the smooth roll. At this time, the tip of the piercing needle is
Although it penetrates the coating film, but cannot penetrate the base material film by coming into contact with the surface of the smooth roll, it is possible to form ventilation holes only in the coating film without making holes in the base material film.
【００１２】さらに、熱可塑性樹脂からなる被覆フィル
ムを突起ロール又はレーザ装置側に配して当該突起ロー
ルと平滑ロールとの間、又はレーザ装置に通過させるこ
とにより、突起ロールの針状突起の熱、又はレーザ装置
のレーザ光線の熱により、基材フィルムには孔を開けな
いで被覆フィルムのみに通気孔を穿孔することができ
る。Further, by disposing a coating film made of a thermoplastic resin on the protrusion roll or the laser device side and passing it between the protrusion roll and the smooth roll or through the laser device, the heat of the needle-like protrusions of the protrusion roll is increased. Alternatively, the ventilation holes can be formed only in the covering film without making holes in the base film by the heat of the laser beam of the laser device.
【００１３】[0013]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１４】図１及び図２は、本発明に係るフィルム部
材の一実施例を示す断面図及び平面図である。図中、１
は基材フィルム、２は被覆フィルムであり、基材フィル
ム１は、水分を吸収して空気を通す吸水性及び通気性を
共に備えた吸水・通気性部材で形成すると共に、被覆フ
ィルム２は、基材フィルム１と異なる材質の部材で形成
している。かかる吸水・通気性を有する基材フィルム１
としては、例えば、セロファンや紙等を適用することが
でき、その他にも、空気を通過させることができて適当
量の水分を吸収できるものであればよい。また、被覆フ
ィルム２としては、例えば、ポリエチレンフィルムや酢
酸ビニル樹脂フィルム等の熱可塑性樹脂が好適ではある
が、少なくとも後述するような通気孔３が比較的簡単に
形成できるものであればよい。1 and 2 are a sectional view and a plan view showing an embodiment of a film member according to the present invention. 1 in the figure
Is a base film, 2 is a coating film, and the base film 1 is formed of a water-absorbing / breathable member having both water-absorbing and air-permeable properties that absorb moisture and allow air to pass through. It is formed of a member made of a material different from that of the base film 1. Base film 1 having such water absorption and air permeability
For example, cellophane, paper, or the like can be applied, and in addition, any material that can pass air and can absorb an appropriate amount of water can be used. Further, as the coating film 2, for example, a thermoplastic resin such as a polyethylene film or a vinyl acetate resin film is suitable, but at least a vent hole 3 described later can be formed relatively easily.
【００１５】上記被覆フィルム２の全面には多数の通気
孔３が穿設されていて、これらの通気孔３を介して表裏
面間に水分の出入りを可能としている。これらの通気孔
３は基材フィルム１によって塞がれるため、当該通気孔
３の大きさは任意に設定できるが、通常その直径は０．
１ｍｍ〜２．０ｍｍ程度が好適である。かかる被覆フィ
ルム２と基材フィルム１とは、熱融着や接着剤による結
合等の各種の固着手段により、重ね合わせて一体成形す
る。このように一体成形された接合フィルム４に、後述
する穿孔装置によって通気孔３を穿設する。図３は、接
着剤５を用いて基材フィルム１と被覆フィルム２とを固
着して３層構造とした実施例を示す断面図である。A large number of vent holes 3 are formed on the entire surface of the covering film 2 so that water can flow in and out between the front and back surfaces through the vent holes 3. Since these ventilation holes 3 are closed by the base film 1, the size of the ventilation holes 3 can be set arbitrarily, but the diameter thereof is usually 0.
About 1 mm to 2.0 mm is suitable. The covering film 2 and the base film 1 are superposed and integrally formed by various fixing means such as heat fusion or bonding with an adhesive. Vent holes 3 are formed in the joint film 4 integrally formed in this manner by a punching device described later. FIG. 3 is a cross-sectional view showing an embodiment in which the base film 1 and the covering film 2 are fixed to each other with an adhesive 5 to form a three-layer structure.
【００１６】図４は、被覆フィルム２に通気孔３を穿設
するための穿孔装置の一実施例を示す概略説明図であ
る。穿孔装置６は、外周面に多数の穿孔針７を設けた突
起ロール８と、外周面が平滑な平滑ロール９とを備えて
おり、両ロール８，９は、互いの軸心線を平行とすると
共に、それらの軸心線を含む平面上において穿孔針７の
先端が平滑ロール９の外周面に接するように配設してい
る。そして、突起ロール８と平滑ロール９とは、互いに
逆方向に回転するように構成されていて、突起ロール８
側に被覆フィルム２を配して接合フィルム４を、両ロー
ル８，９の回転方向手前側から穿孔装置６に送り込むよ
うにする。FIG. 4 is a schematic explanatory view showing an embodiment of a perforating device for perforating the ventilation holes 3 in the covering film 2. The punching device 6 is provided with a projecting roll 8 having a large number of punching needles 7 on its outer peripheral surface and a smooth roll 9 having a smooth outer peripheral surface. Both rolls 8 and 9 have their axes parallel to each other. At the same time, the tip of the piercing needle 7 is arranged so as to contact the outer peripheral surface of the smooth roll 9 on a plane including those axis lines. The protrusion roll 8 and the smooth roll 9 are configured to rotate in mutually opposite directions.
The covering film 2 is arranged on the side, and the joining film 4 is fed into the punching device 6 from the front side in the rotation direction of both rolls 8 and 9.
【００１７】穿孔装置６の互いに逆方向に回転する突起
ロール８と平滑ロール９との間に接合フィルム４を送り
込むと、図５に拡大して示すように、突起ロール８の回
転に伴って穿孔針７が被覆フィルム２側から刺し込ま
れ、当該被覆フィルム２を貫通して基材フィルム１内に
刺し込まれる。そして、穿孔針７が両ロール８，９の軸
心線を含む平面内に至ると、平滑ロール９のロール表面
上には基材フィルム１の表面が一致していて、円錐形を
なす穿孔針７の先端は平滑ロール９の外周面に略点の状
態で接触するため、穿孔針７が基材フィルム１を貫通す
ることがない。従って、このような穿孔針７の刺し込み
により、被覆フィルム２には通気孔３が穿設されるが、
基材フィルム１には通気孔が穿設されることがない。な
お、この穿孔装置６によれば、穿孔針７の刺し込みだけ
で通気孔３を穿設できるため、被覆フィルム２の材質は
熱可塑性樹脂である必要はない。When the bonding film 4 is fed between the projection roll 8 and the smooth roll 9 which rotate in opposite directions of the punching device 6, as shown in the enlarged view of FIG. The needle 7 is inserted from the coating film 2 side, penetrates the coating film 2 and is inserted into the base film 1. When the piercing needle 7 reaches the plane including the axes of the rolls 8 and 9, the surface of the substrate film 1 is aligned with the roll surface of the smooth roll 9, and the piercing needle has a conical shape. Since the tip of 7 contacts the outer peripheral surface of the smooth roll 9 in a substantially pointed state, the piercing needle 7 does not penetrate the base film 1. Therefore, although the vent hole 3 is formed in the covering film 2 by such insertion of the perforating needle 7,
Vent holes are not formed in the base film 1. According to the punching device 6, the vent holes 3 can be punched only by inserting the punching needle 7. Therefore, the material of the covering film 2 need not be a thermoplastic resin.
【００１８】図６には、他の形式の穿孔装置による通気
孔３の穿設状態を示す。この穿孔装置１０は、突起ロー
ル１１側に熱源を設けて被覆フィルム２を局部的に融解
させることにより、通気孔３を穿設するようにしたもの
である。そのため、被覆フィルム２の材質をポリエチレ
ンフィルムや酢酸ビニル樹脂フィルム等の熱可塑性樹脂
とすると共に、基材フィルム１の材質を被覆フィルム２
の材質よりも融点の高いものとする必要がある。また、
この穿孔装置１０は、被覆フィルム２に刺し込まれた穿
孔針１２の熱で当該被覆フィルム２を局部的に融解して
通気孔３を穿設するものであるため、穿孔針１２の先端
は平滑ロール９の外周面に接触しないように若干離間さ
せて設けるようにする。FIG. 6 shows a state in which the vent holes 3 are bored by another type of punching device. This punching device 10 is provided with a heat source on the side of the protrusion roll 11 to locally melt the coating film 2 to form the vent hole 3. Therefore, the material of the cover film 2 is a thermoplastic resin such as a polyethylene film or a vinyl acetate resin film, and the material of the base film 1 is a cover film 2.
It is necessary to have a melting point higher than that of the material. Also,
Since this punching device 10 locally melts the coating film 2 by the heat of the punching needle 12 pierced into the coating film 2 to form the vent hole 3, the tip of the punching needle 12 is smooth. The rollers 9 are provided so as to be slightly separated from each other so as not to contact the outer peripheral surface of the roll 9.
【００１９】さらに、図７には、他の形式の穿孔装置と
して、レーザ装置を適用した例を示す。レーザ装置１４
は、レーザ光線を接合フィルム４に向けて発射し、その
レーザ光線の熱により、表面側の被覆フィルム２のみを
局部的に融解させて通気孔３を穿孔する。そのため、レ
ーザ光の出力は、被覆フィルム２は融解できるが、裏面
側の基材フィルム１は融解し得ない強さに設定する必要
がある。Further, FIG. 7 shows an example in which a laser device is applied as another type of punching device. Laser device 14
Emits a laser beam toward the bonding film 4, and the heat of the laser beam locally melts only the covering film 2 on the front surface side to form the ventilation hole 3. Therefore, it is necessary to set the output of the laser light to such a strength that the covering film 2 can be melted but the base film 1 on the back surface side cannot be melted.
【００２０】上述したような穿孔装置によって通気孔３
が穿孔されたフィルム部材の用途としては、例えば、魚
や肉等の生鮮食料品を包装するための包装材として適用
することができる。その場合、本フィルム部材は、基材
フィルム１を内側にして魚や肉等を包み込むようにす
る。それにより、本フィルム部材で包装した魚や肉等か
ら水分が吹き出すと、その水分は基材フィルム１に吸収
され、その多くは通気孔３を通って外部に吹き出し、大
気中に蒸発する。一方、基材フィルム１内に残留した余
剰の水分は当該基材フィルム１に保水されるため、吹き
出した水分が魚や肉等の表面に残留することがなく、従
って、魚や肉等から吹き出した水分に微生物が付着して
繁殖することがないから、微生物等による魚や肉等の腐
食を抑制することができる。そして、通気孔３は基材フ
ィルム１によって塞がれているため、その通気孔から虫
等が入り込むおそれがなく、従って、生鮮食料品を長期
間衛生的に保持することができる。The vent hole 3 is formed by the punching device as described above.
The perforated film member can be used, for example, as a packaging material for packaging fresh food products such as fish and meat. In this case, the present film member wraps the fish, meat, etc. with the base film 1 inside. As a result, when water is blown out from the fish, meat, etc. packaged with the film member, the water is absorbed by the base film 1, and most of the water is blown out through the ventilation holes 3 and evaporated into the atmosphere. On the other hand, since the excess water remaining in the base film 1 is retained in the base film 1, the released water does not remain on the surface of fish, meat, etc. Therefore, the water released from the fish, meat, etc. Since microorganisms do not adhere to and propagate on the fish, corrosion of fish, meat, etc. due to microorganisms can be suppressed. Since the ventilation holes 3 are closed by the base film 1, there is no possibility that insects or the like may enter through the ventilation holes, and therefore fresh food can be kept hygienic for a long period of time.
【００２１】[0021]
【発明の効果】以上説明してきたように、本発明は上述
のとおり構成されているので、次に記載するような効果
を奏する。As described above, since the present invention is constructed as described above, it has the following effects.
【００２２】請求項１及び２の吸水・通気性を有するフ
ィルム部材によれば、本フィルム部材で包装した魚や肉
等から水分が吹き出した場合、その水分は基材フィルム
に吸収され、その大部分は通気孔を通って被覆フィルム
の外に吹き出し、その通気孔の表側から大気中に蒸発さ
れると共に、基材フィルム内に残留した余剰の水分は当
該基材フィルムに保水される。そのため、吹き出した水
分が魚や肉等の表面に残留することがないから、魚や肉
等から吹き出した水分に微生物が付着して繁殖すること
がなく、従って、微生物等による魚や肉等の腐食を抑制
することができるフィルム部材を提供することができ
る。そして、通気孔は基材フィルムによって塞がれてい
るため、その通気孔から虫等が内部に入り込むおそれが
なく、従って、生鮮食料品を長期間衛生的に保持できる
という効果が得られる。According to the water-absorbing / air-permeable film member of claims 1 and 2, when water is blown out from the fish, meat or the like packaged by the film member, the water is absorbed by the base film, and most of the water is absorbed. Is blown out of the covering film through the ventilation holes, evaporated from the front side of the ventilation holes into the atmosphere, and excess water remaining in the base film is retained in the base film. Therefore, since the blown-out water does not remain on the surface of fish, meat, etc., microorganisms do not propagate by adhering to the water blown out from fish, meat, etc. Therefore, the corrosion of fish, meat, etc. by microorganisms is suppressed. A film member that can be provided can be provided. Further, since the air holes are closed by the base film, there is no possibility that insects or the like may enter the air holes, and therefore, it is possible to obtain the effect that fresh food products can be kept hygienic for a long period of time.
【００２３】また、請求項３乃至５の吸水・通気性を有
するフィルム部材の製造方法によれば、基材フィルムに
は孔を開けないで被覆フィルムのみに通気孔を開けるこ
とができると共に、その穿設作業を簡単且つ確実に行う
ことができる。Further, according to the method of manufacturing a film member having water absorption / breathability of claims 3 to 5, it is possible to form a vent hole only in the covering film without making a hole in the base film, and The drilling work can be performed easily and reliably.
【図１】本発明に係るフィルム部材の一実施例を示す断
面図である。FIG. 1 is a sectional view showing an embodiment of a film member according to the present invention.
【図２】図１の平面図である。FIG. 2 is a plan view of FIG.
【図３】本発明に係るフィルム部材の他の実施例を示す
断面図である。FIG. 3 is a cross-sectional view showing another embodiment of the film member according to the present invention.
【図４】本発明に係る穿孔装置の一実施例を示す概略説
明図である。FIG. 4 is a schematic explanatory view showing an embodiment of a punching device according to the present invention.
【図５】図４の穿孔装置による穿孔状態を説明するため
の要部拡大図である。5 is an enlarged view of an essential part for explaining a punching state by the punching device of FIG.
【図６】本発明に係る穿孔装置の第２の実施例を示す概
略説明図である。FIG. 6 is a schematic explanatory view showing a second embodiment of the punching device according to the present invention.
【図７】本発明に係る穿孔装置の第３の実施例を示す概
略説明図である。FIG. 7 is a schematic explanatory view showing a third embodiment of the punching device according to the present invention.
１ 基材フィルム ２ 被覆フィルム ３ 通気孔 ６，１０ 穿孔装置 ７，１２ 穿孔針 ８，１１ 突起ロール ９ 平滑ロール １４ レーザ装置（穿孔装置） DESCRIPTION OF SYMBOLS 1 Base film 2 Cover film 3 Vent 6,10 Punching device 7,12 Punching needle 8,11 Protrusion roll 9 Smoothing roll 14 Laser device (punching device)
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ６５Ｄ 81/26 Ｇ 9028−3Ｅ Ｃ 9028−3Ｅ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location B65D 81/26 G 9028-3E C 9028-3E
Claims (5)
せて一体形成したフィルム部材において、前記基材フィ
ルムは、水分を吸収して空気を通す吸水・通気性部材で
形成すると共に、前記被覆フィルムには、その全面に多
数の通気孔を穿設したことを特徴とする吸水・通気性を
有するフィルム部材。1. A film member integrally formed by superposing a covering film on a base film, wherein the base film is formed of a water-absorbing / breathable member that absorbs moisture and allows air to pass through, Is a film member having water absorption and air permeability, characterized in that a large number of air holes are formed on the entire surface thereof.
せて一体形成したフィルム部材において、前記基材フィ
ルムは、水分を吸収して空気を通す吸水・通気性部材で
形成すると共に、前記被覆フィルムは、前記吸水・通気
性部材の材質よりも融点が低い熱可塑性樹脂で形成し、
その被覆フィルムの全面に多数の通気孔を穿設したこと
を特徴とする吸水・通気性を有するフィルム部材。2. A film member integrally formed by superposing a cover film on a base film, wherein the base film is formed of a water-absorbing / breathable member that absorbs moisture and allows air to pass therethrough. Formed of a thermoplastic resin having a lower melting point than the material of the water-absorbing / air-permeable member,
A film member having water absorption and air permeability, characterized in that a large number of air holes are formed on the entire surface of the covering film.
部材で形成された基材フィルムに被覆フィルムを重ね合
わせて一体に形成した後、外周面に多数の穿孔針を設け
た突起ロールと外周面が平滑な平滑ロールとが回転接触
する間に、前記被覆フィルムを前記突起ロール側に配し
て通過させ、前記穿孔針の刺し込みにより被覆フィルム
のみに通気孔を穿設することを特徴とする吸水・通気性
を有するフィルム部材の製造方法。3. A projecting roll having a base film formed of a water-absorbing / breathable member that absorbs moisture and allows air to pass through, and integrally formed with a covering film, and then provided with a large number of perforation needles on the outer peripheral surface. While the outer peripheral surface and the smooth roll having a smooth outer peripheral surface are in rotational contact, the covering film is arranged and passed on the protruding roll side, and a vent hole is formed only in the covering film by inserting the piercing needle. A method for producing a film member having water absorption and air permeability.
部材で形成された基材フィルムに、前記吸水・通気性部
材の材質よりも融点が低い熱可塑性樹脂で形成された被
覆フィルムを重ね合わせて一体に形成した後、外周面に
多数の針状突起を設け且つ前記熱可塑性樹脂のみを融解
できる温度に過熱された突起ロールと外周面が平滑な平
滑ロールとが回転する間に、前記被覆フィルムを前記突
起ロール側に配して通過させ、前記針状突起の熱により
被覆フィルムを溶かして当該被覆フィルムのみに通気孔
を穿設することを特徴とする吸水・通気性を有するフィ
ルム部材の製造方法。4. A base film formed of a water-absorbing / air-permeable member that absorbs moisture and allows air to pass through, and a coating film formed of a thermoplastic resin having a lower melting point than the material of the water-absorbing / air-permeable member. After they are integrally formed by superimposing, a plurality of needle-like protrusions are provided on the outer peripheral surface and the protrusion roll heated to a temperature at which only the thermoplastic resin can be melted and the outer peripheral surface having a smooth smooth roll are rotated, A water-absorbing / breathable film, characterized in that the coating film is arranged on the protrusion roll side and passed therethrough, and the coating film is melted by the heat of the needle-shaped protrusions to form ventilation holes only in the coating film. Method of manufacturing member.
部材で形成された基材フィルムに、前記吸水・通気性部
材よりも融点が低い熱可塑性樹脂で形成された被覆フィ
ルムを重ね合わせて一体に形成した後、レーザ光線を発
射できるレーザ装置の前に、前記被覆フィルムを前記レ
ーザ装置側に配して通過させ、前記レーザ光線の熱によ
り被覆フィルムを溶かして当該被覆フィルムのみに通気
孔を穿設することを特徴とする吸水・通気性を有するフ
ィルム部材の製造方法。5. A covering film formed of a thermoplastic resin having a lower melting point than that of the water absorbing / breathable member is superposed on a base film formed of a water absorbing / breathable member that absorbs moisture and allows air to pass therethrough. After the laser beam can be emitted integrally, the cover film is placed on the side of the laser device and passed therethrough, and the cover film is melted by the heat of the laser beam and passed through only the cover film. A method of manufacturing a film member having water absorption and air permeability, which comprises forming pores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04735291A JP3548581B2 (en) | 1991-02-21 | 1991-02-21 | Packaging material for perishable foods and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04735291A JP3548581B2 (en) | 1991-02-21 | 1991-02-21 | Packaging material for perishable foods and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05200931A true JPH05200931A (en) | 1993-08-10 |
| JP3548581B2 JP3548581B2 (en) | 2004-07-28 |
Family
ID=12772755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04735291A Expired - Lifetime JP3548581B2 (en) | 1991-02-21 | 1991-02-21 | Packaging material for perishable foods and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3548581B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001301107A (en) * | 2000-04-20 | 2001-10-30 | Tomoegawa Paper Co Ltd | Water and oil absorbable laminate and water and oil absorbing tray |
| JP2014031186A (en) * | 2012-08-02 | 2014-02-20 | Toppan Printing Co Ltd | Paper container for liquid |
| CN107443854A (en) * | 2017-07-24 | 2017-12-08 | 滁州卷烟材料厂 | A kind of distortion-free easily recovery corrugated case of waterproof |
-
1991
- 1991-02-21 JP JP04735291A patent/JP3548581B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001301107A (en) * | 2000-04-20 | 2001-10-30 | Tomoegawa Paper Co Ltd | Water and oil absorbable laminate and water and oil absorbing tray |
| JP2014031186A (en) * | 2012-08-02 | 2014-02-20 | Toppan Printing Co Ltd | Paper container for liquid |
| CN107443854A (en) * | 2017-07-24 | 2017-12-08 | 滁州卷烟材料厂 | A kind of distortion-free easily recovery corrugated case of waterproof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3548581B2 (en) | 2004-07-28 |
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