JPH04152126A - Treatment of inner wall surface of cylindrical film with liquid - Google Patents
Treatment of inner wall surface of cylindrical film with liquidInfo
- Publication number
- JPH04152126A JPH04152126A JP27675390A JP27675390A JPH04152126A JP H04152126 A JPH04152126 A JP H04152126A JP 27675390 A JP27675390 A JP 27675390A JP 27675390 A JP27675390 A JP 27675390A JP H04152126 A JPH04152126 A JP H04152126A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical film
- film
- wall surface
- liquid
- die
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 claims description 23
- 238000000465 moulding Methods 0.000 claims description 12
- 150000002505 iron Chemical class 0.000 claims description 7
- 239000007921 spray Substances 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 238000005507 spraying Methods 0.000 abstract 2
- 238000004804 winding Methods 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000243 solution Substances 0.000 description 6
- 159000000014 iron salts Chemical class 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000008360 acrylonitriles Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-N iron;hydrochloride Chemical compound Cl.[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はインフレーション成形機によって製造される合
４成樹脂製の筒状フィルムの内壁面を処理液でコーティ
ング処理する筒状フィルムの内壁面液体処理方法、さら
に詳しくは、インフレーション成形法により筒状フィル
ムを形成する行程中に。Detailed Description of the Invention [Industrial Field of Application] The present invention relates to coating the inner wall surface of a cylindrical film made of synthetic quaternary resin with a treatment liquid, which is produced by an inflation molding machine. The processing method, more specifically, during the step of forming a cylindrical film by an inflation molding method.
該フィルムの内壁面に処理液を連続かつ自動的に付着す
る筒状フィルムの内壁面液体処理方法に関するものであ
る。The present invention relates to a method for treating liquid on the inner wall surface of a cylindrical film, in which a treatment liquid is continuously and automatically applied to the inner wall surface of the film.
一般に合成樹脂製の筒状フィルムのインフレーション成
形は次の方法により行なわれている。即ち、環状のダイ
スリッ）Ｙ形成したダイをインフレーション成形機の押
出機の出口に連結し、原料（溶融し定合成樹脂）１！：
ダイスリットからチューブ状に押出し、この押出され定
チューブ状体乞ダイの上方部に配設したニップロールに
挾ませ、上記チューブ状体内に所定量（圧）の空気を封
入してチューブ状体を所望の径に膨張させて筒状フィル
ム（バブル）に形成し、このフィルムをニップロールで
巻取部側へ送り出して連続的に巻取るものである。In general, inflation molding of a cylindrical film made of synthetic resin is carried out by the following method. That is, the die formed with the annular die slit (Y) is connected to the outlet of the extruder of the inflation molding machine, and the raw material (melted synthetic resin) 1! :
The extruded tubular body is extruded into a tube shape through a die slit, and the extruded tubular body is sandwiched between nip rolls disposed above the die, and a predetermined amount (pressure) of air is sealed in the tubular body to form the desired tubular body. The film is inflated to a diameter of 1, to form a cylindrical film (bubble), and this film is fed to the winding section using nip rolls and continuously wound.
ところで、従来、上記筒状フィルムの内壁面を薬液その
他の処理液でコーテング処理する方法としては、一般に
、筒状フィルムを処理液中に浸漬することにより行なわ
れている。By the way, conventionally, the method of coating the inner wall surface of the cylindrical film with a chemical solution or other processing liquid is generally carried out by immersing the cylindrical film in the processing liquid.
上記浸漬法によれば、フィルムの内壁面を液体でコーテ
ィングすることはできるが、この方法ではフィルムの内
外両面に処理液が付着することになると共に、作業効率
が悪い問題を有している。According to the above-mentioned dipping method, the inner wall surface of the film can be coated with the liquid, but this method has the problem that the processing liquid adheres to both the inner and outer surfaces of the film, and the work efficiency is poor.
ま定、近年、生命科学の研究が促進され、新規の物質、
二価三価鉄塩が開発された。この二価三価鉄塩は二価鉄
と三価鉄との中間の性質を示す鉄の塩酸塩、硫酸塩、硝
酸塩等の無機塩、および蟻酸塩、酢酸塩、プロピオン酸
塩等の有機塩であり、三価鉄の塩類を多Ｉのカセイソー
ダ、水酸化カリウム、水酸化リチウム、水酸化カルシウ
ム等の強アルカリの水溶液に投入して二価鉄への原子価
変換を起こさせた場合、および二価鉄の塩類を多量の塩
酸、硫酸等の強酸の水溶液中に投入して三価鉄への原子
価変換を起こさせた場合の遷移形態として得られるもの
で、二価三価鉄塩の原液は無色透明、無臭であり、現在
工業的に生産可能である。In recent years, life science research has been promoted, and new substances,
Divalent and trivalent iron salts were developed. These divalent and trivalent iron salts include inorganic salts such as iron hydrochloride, sulfate, and nitrate, and organic salts such as formate, acetate, and propionate, which exhibit intermediate properties between divalent iron and trivalent iron. When trivalent iron salts are added to a strong alkali aqueous solution such as polyI caustic soda, potassium hydroxide, lithium hydroxide, calcium hydroxide, etc. to cause valence conversion to divalent iron, and It is obtained as a transition form when divalent iron salts are introduced into a large amount of an aqueous solution of strong acids such as hydrochloric acid or sulfuric acid to cause valence conversion to trivalent iron. The stock solution is colorless, transparent, and odorless, and can currently be produced industrially.
そして、上記二価三価鉄塩は植物の組織崩壊を阻止し、
腐敗を防止する機能を有すること、また、植物ウィルス
の一種であるＴＭＶの感染を的確に阻止する機能を有す
ることなどが明白になってきた。したがって、上記二価
三価鉄塩を含有する溶液で筒状フィルムの内壁面をコー
ティング処理すると、たとえば、果物や野菜その他の生
鮮食料品の包装袋として極めて有効的である。The above-mentioned divalent and trivalent iron salts prevent tissue breakdown of plants,
It has become clear that it has the function of preventing rotting and also has the function of accurately inhibiting infection by TMV, a type of plant virus. Therefore, coating the inner wall surface of a cylindrical film with a solution containing the divalent and trivalent iron salt is extremely effective, for example, as a packaging bag for fruits, vegetables, and other perishable foods.
しかるに、上記のような処理液で筒状フィルムの内壁面
を能率良（コーティング処理する方法は開発されていな
かった。However, a method for efficiently coating the inner wall surface of a cylindrical film with the above-mentioned treatment liquid has not been developed.
本発明は上述しにかうな点に鑑みてなされにもので、本
発明の目的は、インフレーション成形法により成形しに
筒状フィルムを巻取部に巻取る以前に、該フィルムの内
壁面を処理液で作業効率良く円滑良好にコーティング処
理できる液体処理方法を提供せんとするものである。The present invention has been made in view of the above-mentioned points, and an object of the present invention is to treat the inner wall surface of a cylindrical film before winding it up in a winding section for forming the film by an inflation molding method. It is an object of the present invention to provide a liquid processing method that can perform coating processing efficiently and smoothly using a liquid.
上記目的を達成するにめ、本願の牙１の発明に係る筒状
フィルムの内壁面液体処理力法は、インフレーション成
形機によって筒状フィルムを連続的に形成する行程中に
おいて、ダイとニップロール間の筒状フィルム（バブル
）内に上記ダイ側から処理液を噴霧して上記フィルムの
内壁面に処理液を付着させることを特徴とするものであ
る。In order to achieve the above object, the inner wall surface liquid handling force method of the cylindrical film according to the invention of Fang 1 of the present application is carried out between the die and the nip roll during the process of continuously forming the cylindrical film by an inflation molding machine. This method is characterized in that the processing liquid is sprayed into the cylindrical film (bubble) from the die side to adhere the processing liquid to the inner wall surface of the film.
また、本願の第２の発明に係る筒状フィルムの内壁面液
体処理力法は、上記処理液が二価三価鉄塩を含有する溶
液であることを特徴とするものである。Moreover, the inner wall surface liquid processing power method for a cylindrical film according to the second invention of the present application is characterized in that the processing liquid is a solution containing a divalent and trivalent iron salt.
本発明方法に使用される合成樹脂としては、インフレー
ション成形に使用されるプラスチックスであれば種類は
限定されないが、たとえば、ポリエチレン、ポリフロピ
レン、エチレン−プロピレン共重合体、エチレン−酢酸
ビニル共重合体、アイオノマー、エチレン−アクリル酸
エチル共重合体、その他エチレン系共重合体、ポリ塩化
ビニル、ポリ塩化ビニリデン、ゴム変成アクリロニトリ
ル系グラフト共重合体、ナイロン６、ナイロン６６、ポ
リエチレンテレフタレート、ポリスチレン等が挙げられ
る。The synthetic resin used in the method of the present invention is not limited in type as long as it is a plastic used in inflation molding, but examples include polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, Examples include ionomers, ethylene-ethyl acrylate copolymers, other ethylene copolymers, polyvinyl chloride, polyvinylidene chloride, rubber-modified acrylonitrile-based graft copolymers, nylon 6, nylon 66, polyethylene terephthalate, polystyrene, and the like.
上記本発明方法によれば、筒状フィルムは巻取部に巻取
られる以前に、フィルムの内壁面の全面に処理液が噴霧
される。したがって、筒状フィルムの内壁面には上記処
理液が自動的、力・つ、連続的疋効率良く付着され、コ
ーティングされることになる。According to the method of the present invention, the treatment liquid is sprayed onto the entire inner wall surface of the cylindrical film before it is wound up in the winding section. Therefore, the processing liquid is automatically, forcefully, and continuously applied to the inner wall surface of the cylindrical film with high efficiency and coated therewith.
以下、図面を参照して本発明の実施例につき説明する。 Embodiments of the present invention will be described below with reference to the drawings.
図面は本発明方法を実施に使用する装置の一例を示す一
部を断面とした側面図である。同図において、１はイン
フレーション成形機を示し、２はホッパー３を備えた押
出機、４は環状のダイスリット５を有し、押出機２の出
口側と連結し℃配設したダイ、６はダイ４の上部側に設
け１こ冷却用のエアーリングで、図示しない送風機によ
り供給されるエアーを後述するバブルの周囲に吹付けて
、バブルを冷却するように構成しである。７はダイ４の
真上にあって適当な高さに位置させて配設したガイド板
で、ガイド板７は二枚の板体７ａ７ｂを山形状に対設し
て構成されている。８はガイド板７の上部に配設したニ
ップロールで、ニッブロール８は一対のロール８ａ、８
ｂを密接させて対設し、モータ（図示せず〕等ＶＣより
互に外側方向へ回転させるように構成しである。９はガ
イドロール、１０は巻取部で、ニップロール８カ・ら送
り出される筒状フィルムは巻取部に順次巻取るようにな
っている。The drawing is a side view, partially in section, showing an example of an apparatus used to carry out the method of the present invention. In the figure, 1 is an inflation molding machine, 2 is an extruder equipped with a hopper 3, 4 is a die having an annular die slit 5 and connected to the outlet side of the extruder 2, and 6 is a die arranged at ℃. A cooling air ring is provided on the upper side of the die 4, and air supplied by a blower (not shown) is blown around the bubbles, which will be described later, to cool the bubbles. Reference numeral 7 denotes a guide plate located directly above the die 4 at an appropriate height, and the guide plate 7 is composed of two plates 7a7b arranged opposite each other in a mountain shape. 8 is a nip roll arranged on the upper part of the guide plate 7, and the nib roll 8 is a pair of rolls 8a, 8.
b are placed in close opposition to each other and are configured to be rotated outward from each other by a motor (not shown) or the like. 9 is a guide roll, 10 is a winding section, and the nip roll 8 is fed out from the VC. The cylindrical film is sequentially wound into a winding section.
１１はダイ４に形成した空気吹上通路、１２は送風機、
１３は通路１１と送風機１２とを接続し定接続パイプ１
４に介装した圧力設定弁で、送風機１２により通路１１
の吹出口１５１Ｊ・ら圧力空気を吹き上げて、ノくプル
Ｂ内に空気を導入するように構成され、また、バブルＢ
内の空気圧を弁１３で調警し、設定値以上の圧力（空気
圧）を弁１３７）・ら外部へ逃がしてノ（フルＢ内の空
気圧を一定に保持するようになっている。11 is an air blowing passage formed in the die 4; 12 is a blower;
13 is a fixed connection pipe 1 that connects the passage 11 and the blower 12.
4, the passage 11 is controlled by the blower 12.
Bubble B
The air pressure inside the full B is regulated by the valve 13, and the pressure (air pressure) exceeding the set value is released to the outside through the valve 137) to maintain the air pressure inside the full B constant.
１６はダイ４を貫通して設げπ液体噴霧管、１７２マボ
ンプ、１８はタンクで、タンク１８内の処理液１９ヲポ
ンブ１７で送給し、噴霧管１６の上端のノズル２０ｆＪ
・らバブルＢ内へ噴霧するように構成しである。Ａは溶
融した合成樹脂の原料を示すものである。16 is a liquid spray pipe provided through the die 4, 172 is a liquid spray pipe, 18 is a tank, the processing liquid 19 in the tank 18 is fed by a pump 17, and a nozzle 20fJ at the upper end of the spray pipe 16 is provided.
・It is configured to spray into the bubble B. A indicates the raw material of the molten synthetic resin.
本発明方法の実施に使用するインフレーション成形機は
上記のように構成されており、次に本発明の液体処理方
法につき説明する。The inflation molding machine used to carry out the method of the present invention is constructed as described above. Next, the liquid processing method of the present invention will be explained.
押出機２を駆動すると、ホッパー３内の合成樹脂原料は
加熱溶融され、この溶融原料Ａはダイ４のダイスリット
５からチューブ状になって連成的に押出される。そこで
、この押出されニチューフ状体Ｔの端部をニップロール
８０ロール８ａ ８ｂ間に挟入すると共てニップロール
８の、駆動により送り出されるチューブ状体Ｔの端５を
ガイドロール９を介して巻取部１０側へ垂下する。When the extruder 2 is driven, the synthetic resin raw material in the hopper 3 is heated and melted, and the molten raw material A is extruded from the die slit 5 of the die 4 in a tube shape in a coupled manner. Therefore, the end portion of the extruded tubular body T is inserted between the nip rolls 80 rolls 8a and 8b, and the end portion 5 of the tubular body T fed out by the drive of the nip roll 8 is passed through the guide roll 9 to the winding section. It hangs down to the 10 side.
そこで、上記状態において、エアーリング６から冷却エ
アーをチューブ状体Ｔ側へ吹き付げろと共に、送風機１
２かもチューブ状体Ｔ内に圧力空気を導入すると、チュ
ーブ状体Ｔの上端部はニブブロール８に挾まれて閉塞さ
れている−め、膨張して薄い筒状フィルム（この状態の
フィルムを〕々プルＢと称しているうになり、エアーリ
ング６かも吹出されている冷却風により筒状フィルム（
）くフルＢ）は冷却され、固化する。そして、ノくプル
Ｂが所定の径に膨張し几時点でバブルＢ内への空気の供
給を停止する。これにより、バブルＢ内には設定し定所
定圧力の空気が封入されるので、これ以降にダイスリッ
ト５から押出されるチューブ状体Ｔは上記空気圧の作用
により所定の径に膨張して筒状フィルム（バブルＢ）と
なって、ニップロール８で連続的に送り出され、これを
巻取部１０に巻取ることにより通常の筒状フィルムが得
られる。Therefore, in the above state, the cooling air is blown from the air ring 6 toward the tubular body T side, and the blower 1
2) When pressurized air is introduced into the tubular body T, the upper end of the tubular body T, which is pinched and closed by the nib rolls 8, expands to form a thin cylindrical film (film in this state). The cylindrical film (called pull B) is formed by the cooling air blown out from the air ring 6.
) is cooled and solidified. Then, the bubble B expands to a predetermined diameter and stops supplying air to the inside of the bubble B when the bubble B expands to a predetermined diameter. As a result, air at a predetermined pressure is sealed inside the bubble B, so that the tubular body T extruded from the die slit 5 expands to a predetermined diameter due to the action of the air pressure and becomes cylindrical. A film (bubble B) is continuously sent out by the nip roll 8, and by winding this into the winding section 10, a normal cylindrical film is obtained.
而して、本発明方法は、上記のようにして製造される筒
状フィルムを巻取部１０に巻取る以前に筒状フィルムの
内壁面を処理液でコーティング処理するもので、以下、
これにつき説明する。処理液１９として、二価三価鉄塩
を含有する溶液を使用する場合には次のようにする。二
価三価鉄塩の量は極く少量で充分であり、たとえば、水
（蒸溜水が良い）に約１％混入、すなわち、二価三価鉄
塩を蒸溜水に約１％含有してなる溶液を処理液とする。Therefore, in the method of the present invention, the inner wall surface of the cylindrical film manufactured as described above is coated with a treatment liquid before being wound into the winding section 10.
This will be explained. When a solution containing a divalent and trivalent iron salt is used as the treatment liquid 19, the following procedure is performed. A very small amount of divalent and trivalent iron salt is sufficient; for example, about 1% of divalent and trivalent iron salt is mixed in water (distilled water is better), that is, about 1% of divalent and trivalent iron salt is mixed in distilled water. The solution is used as the processing solution.
そして、この処理液１９ヲタンク１８内に入れ、ポンプ
１７を駆動する。これにより、液１９は噴霧管１６を通
ってノズル２０がバブルＢ（筒状フィルム〕内に噴霧さ
れるので、この噴霧液は筒状フィルムの内壁面に全体的
に付着する。−万、上記のように液１９を筒状フィルム
内に噴霧すると、フィルム内の空気圧は順次高くなるが
、上記のように設定し定圧力以上の空気圧は圧力設定弁
１３から外部に逃がす。したがって、筒状フィルム内の
空気圧は所定値に一定に保持される。このように、筒状
フィルム内に処理液１９を噴霧して、フィルムの内壁面
に液１９を付着し、ニップロール８で送り出して筒状フ
ィルムを巻取部に巻取ることにより、フィルムの内壁面
を液体コーティング処理した筒状フィルムが得られる。Then, this processing liquid 19 is put into the tank 18 and the pump 17 is driven. As a result, the liquid 19 passes through the spray pipe 16 and is sprayed by the nozzle 20 into the bubble B (cylindrical film), so that this sprayed liquid completely adheres to the inner wall surface of the cylindrical film. When the liquid 19 is sprayed into the cylindrical film as shown above, the air pressure inside the film gradually increases, but the air pressure above the constant pressure set as above is released to the outside from the pressure setting valve 13. Therefore, the cylindrical film The air pressure inside is kept constant at a predetermined value.In this way, the processing liquid 19 is sprayed into the cylindrical film, the liquid 19 is attached to the inner wall surface of the film, and the cylindrical film is sent out by the nip roll 8. By winding the film onto a winding section, a cylindrical film whose inner wall surface is subjected to liquid coating treatment is obtained.
本発明方法によれば、筒状フィルム内壁面を処理液で能
率良（円滑良好にコーティング処理することができる。According to the method of the present invention, the inner wall surface of a cylindrical film can be efficiently (smoothly) coated with a treatment liquid.
図面は本発明方法の実施に使用するインフレーション成
形機の一例を示す一部を断面とし定例面図である。
１・・・・・・インフレーション成形機２・・・・・・
押出機
４・・・・・・ダイ
５・・・・・・ダイスリフト
８・・・・・・ニップロール
１１−・・・・・空気吹上通路
１２・・・・・・送風機
１３・・・・・・圧力設定弁
１６・・・・・・液体噴霧管
１７・・・・・・ポンプ
１９・・・・・・処理液The drawing is a partial sectional view showing an example of an inflation molding machine used to carry out the method of the present invention. 1... Inflation molding machine 2...
Extruder 4...Die 5...Die lift 8...Nip roll 11-...Air blow-up passage 12...Blower 13... ...Pressure setting valve 16...Liquid spray pipe 17...Pump 19...Processing liquid
Claims (1)
続的に形成する行程中において、ダイとニップロール間
の筒状フィルム（バブル）内に上記ダイ側から処理液を
噴霧して上記フィルムの内壁面に処理液を付着させるこ
とを特徴とする、筒状フィルムの内壁面液体処理方法。 ２、上記処理液は二価三価鉄塩を含有する溶液であるこ
とを特徴とする筒状フィルムの内壁面液体処理方法。[Claims] 1. During the process of continuously forming a cylindrical film using an inflation molding machine, a processing liquid is sprayed from the die side into the cylindrical film (bubble) between the die and the nip roll to form the film. A method for treating a liquid on an inner wall surface of a cylindrical film, the method comprising: adhering a treatment liquid to the inner wall surface of a cylindrical film. 2. A method for treating an inner wall surface of a cylindrical film with liquid, characterized in that the treatment liquid is a solution containing a divalent and trivalent iron salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27675390A JPH04152126A (en) | 1990-10-16 | 1990-10-16 | Treatment of inner wall surface of cylindrical film with liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27675390A JPH04152126A (en) | 1990-10-16 | 1990-10-16 | Treatment of inner wall surface of cylindrical film with liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04152126A true JPH04152126A (en) | 1992-05-26 |
Family
ID=17573865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27675390A Pending JPH04152126A (en) | 1990-10-16 | 1990-10-16 | Treatment of inner wall surface of cylindrical film with liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04152126A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61168A (en) * | 1984-06-09 | 1986-01-06 | 木島 良道 | Resin film for packaging |
| JPS61193827A (en) * | 1985-02-23 | 1986-08-28 | Chiyoda Kagaku Kk | Method of coating inner wall surface of cylindrical film with liquid |
-
1990
- 1990-10-16 JP JP27675390A patent/JPH04152126A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61168A (en) * | 1984-06-09 | 1986-01-06 | 木島 良道 | Resin film for packaging |
| JPS61193827A (en) * | 1985-02-23 | 1986-08-28 | Chiyoda Kagaku Kk | Method of coating inner wall surface of cylindrical film with liquid |
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