JP2000334805A - Apparatus for producing microporous film of fiber - Google Patents

Apparatus for producing microporous film of fiber

Info

Publication number
JP2000334805A
JP2000334805A JP11146760A JP14676099A JP2000334805A JP 2000334805 A JP2000334805 A JP 2000334805A JP 11146760 A JP11146760 A JP 11146760A JP 14676099 A JP14676099 A JP 14676099A JP 2000334805 A JP2000334805 A JP 2000334805A
Authority
JP
Japan
Prior art keywords
raw material
nozzle
mixing
molten raw
film
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
Application number
JP11146760A
Other languages
Japanese (ja)
Other versions
JP3550048B2 (en
Inventor
Mitsuru Suetomi
満 末冨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUETOMI ENGINEERING KK
Original Assignee
SUETOMI ENGINEERING KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SUETOMI ENGINEERING KK filed Critical SUETOMI ENGINEERING KK
Priority to JP14676099A priority Critical patent/JP3550048B2/en
Publication of JP2000334805A publication Critical patent/JP2000334805A/en
Application granted granted Critical
Publication of JP3550048B2 publication Critical patent/JP3550048B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
    • B29C48/37—Gear pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/387—Plasticisers, homogenisers or feeders comprising two or more stages using a screw extruder and a gear pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for producing microporous films or fibers which can form uniform fine micropores uniformly. SOLUTION: A molten raw material is from an extruder 2 which melts the raw material charged into a hopper 1 to a mixing block 10 through a measuring pump 3. Gas or liquid is supplied from a pump 4 and mixed with the raw material by a nozzle 20, and the mixture is extruded from a T-die 5 onto a roll 6 by way of a static mixer 30.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の技術分野】この発明は、微細な多孔質フィルム
又は繊維の製造装置に関する。The present invention relates to an apparatus for producing a fine porous film or fiber.

【０００２】[0002]

【従来の技術】例えばマイクロボアフィルムの製造方法
として、フィルム原料中に炭酸カルシウム等の微粉末を
混入し、これをＴダイから押し出した後、延伸して微粉
末を剥離脱落させ、その跡にマイクロボアを形成する方
法がある。しかしながら、微粉末がフィルム中に残留す
ることが多くマイクロボアを形成することができないば
かりでなく、表面に凹凸が生じる問題がある。2. Description of the Related Art For example, as a method for producing a micro-bore film, a fine powder such as calcium carbonate is mixed into a film raw material, extruded from a T-die, and then stretched to peel off the fine powder. There is a method of forming a microbore. However, fine powder often remains in the film, so that not only micropores cannot be formed, but also there is a problem that unevenness is generated on the surface.

【０００３】[0003]

【発明の課題】また、原料の押出機に気体を注入する方
法もあるが、均一で微細な気泡が形成され難く、また原
料中に均等に分散され難い問題がある。There is also a method of injecting a gas into a raw material extruder. However, there are problems in that uniform and fine bubbles are hardly formed and that the raw materials are not evenly dispersed in the raw material.

【０００４】そこで、この発明の課題は、均一で微細な
マイクロボアを均等に分散可能にしたマイクロボアフィ
ルム又は繊維の製造装置を提供することである。An object of the present invention is to provide an apparatus for producing a micro-bore film or fiber in which uniform and fine micro-bore can be uniformly dispersed.

【０００５】[0005]

【課題の解決手段】上記の課題を解決するために、この
発明のマイクロボアフィルム又は繊維の製造装置は、加
圧された溶融原料の供給手段と、この溶融原料に不溶の
加圧された流体の注入手段と、前記溶融原料と流体の供
給を受けてこれらを混合するミキシングブロックとこの
ミキシングブロックから排出された混合物をフィルム状
又は繊維状に押し出す手段より成り、前記ミキシングブ
ロックは、前記溶融原料を充填する混合室と、この混合
室内に配置され、前記流体の注入口と多数の微小な注出
口を有するノズルと、このノズルの下流に配置されたス
タティックミキサーを含むことを特徴とする。In order to solve the above-mentioned problems, an apparatus for producing a micro-bore film or fiber according to the present invention comprises a means for supplying a pressurized molten raw material and a pressurized fluid insoluble in the molten raw material. , A mixing block for receiving and mixing the molten raw material and the fluid, and a means for extruding the mixture discharged from the mixing block into a film or fiber form, wherein the mixing block comprises: , A nozzle disposed in the mixing chamber, the nozzle having a fluid inlet and a number of minute spouts, and a static mixer disposed downstream of the nozzle.

【０００６】前記ノズルの注出口を、シリンダ状ノズル
本体の周方向に配置し、その径を３０〜５０μｍにして
おくのが好ましい。It is preferable that the outlet of the nozzle is arranged in the circumferential direction of the cylindrical nozzle body, and the diameter thereof is set to 30 to 50 μm.

【０００７】[0007]

【実施の形態】以下、この発明の実施形態を添付図面に
基づいて説明する。図１はマイクロボアフィルムの製造
装置を示す概略線図である。図示のように、ホッパー１
に原料チップが供給され公知の押出機２で加熱溶融され
て押出された溶融原料は計量ポンプ３（例えばギアポン
プ）を介してミキシングブロック１０に供給される。こ
のミキシングブロック１０では、溶融原料に不溶の気体
又は液体がポンプ４からノズル２０によって注入されス
タティックミキサー３０を経て排出された混合物は、例
えばコートハンガー式のＴダイ５（フラット金型）によ
ってロール６、６間に押し出される。前記気体は、例え
ば空気や窒素などが用いられ、液体は水や天然オイルな
どが用いられる。またこれらの気体又は液体は加圧して
注入する必要があるため、ポンプ４は適当な加圧ポンプ
を用いる。そのほか必要に応じて計量ポンプを介在させ
ることができる。注入は、連続または間欠的のいずれで
もよい。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic diagram showing an apparatus for producing a microbore film. As shown, hopper 1
The raw material chips are supplied, and the molten raw material extruded by being heated and melted by a known extruder 2 is supplied to a mixing block 10 via a measuring pump 3 (for example, a gear pump). In the mixing block 10, a mixture in which gas or liquid insoluble in the molten raw material is injected from the pump 4 by the nozzle 20 and discharged through the static mixer 30 is rolled by, for example, a coat hanger type T die 5 (flat die). , 6 As the gas, for example, air or nitrogen is used, and as the liquid, water, natural oil, or the like is used. Since these gases or liquids need to be injected under pressure, a suitable pressurizing pump is used as the pump 4. In addition, a measuring pump can be interposed if necessary. Infusion may be continuous or intermittent.

【０００８】前記ミキシングブロック１０は、図２に示
すように、シリンダ状混合室１２に連通する溶融原料の
供給口１１が設けられ、混合室１２内には、気体又は液
体を噴出するノズル２０が設けられている。このノズル
２０は、図２及び図３に示すように、シリンダ状本体２
０ａの一端に気体又は液体の注入口２１を有し、この注
入口２１に連通して大径孔２２、中径孔２３、小径孔２
４が設けられ、小径孔２４の先端部には、本体２０ａの
外周まで貫通する微細な注出口２５が上下２列に周方向
に均等な間隔で設けられている。勿論これは３列でもよ
い。上下注出口２５の位置は対応していなくてもよく、
互違いにずれていてもよい。なお場合によっては１列で
もよい。注出口２５の径は３０〜５０μｍ程度、隣接す
る注出口２５、２５の間隔及び上下の注出口２５、２５
の間隔は、本体２０ａの外周で３０〜１００μｍ程度で
ある。As shown in FIG. 2, the mixing block 10 is provided with a supply port 11 for a molten raw material communicating with a cylindrical mixing chamber 12, and a nozzle 20 for jetting a gas or a liquid is provided in the mixing chamber 12. Is provided. This nozzle 20 is, as shown in FIGS.
0a has an inlet 21 for gas or liquid at one end, and communicates with the inlet 21 for the large-diameter hole 22, the medium-diameter hole 23, and the small-diameter hole 2.
At the tip of the small-diameter hole 24, fine spouts 25 penetrating to the outer periphery of the main body 20a are provided at equal intervals in the upper and lower rows in the circumferential direction. Of course, this may be three rows. The positions of the upper and lower spouts 25 need not correspond,
It may be staggered. In some cases, one row may be used. The diameter of the spout 25 is about 30 to 50 μm, the interval between the adjacent spouts 25, 25 and the upper and lower spouts 25, 25.
Is about 30 to 100 μm on the outer periphery of the main body 20a.

【０００９】前記中径孔２３と小径孔２４との間の肩部
２３ａに圧縮コイルスプリング２６の一端が当接し、他
端はボール２７を注入口２１の内端縁２１ａに押し付
け、逆止弁機構を形成している。そしてノズル本体２０
ａの先端から適当な間隔をあけてスタティックミキサー
３０が設けられている。このスタティックミキサー３０
は、各板状エレメント３１が軸方向に捩れたらせん通路
を形成し、図４のように隣接するエレメント３１と３１
は互に逆方向に捩れかつ９０度交差するように配置され
たものである。このスタティックミキサー３０のエレメ
ント数は５〜１０程度が好ましい。One end of a compression coil spring 26 abuts on a shoulder 23a between the middle diameter hole 23 and the small diameter hole 24, and the other end presses a ball 27 against the inner edge 21a of the inlet 21. Forming a mechanism. And the nozzle body 20
A static mixer 30 is provided at an appropriate distance from the tip of “a”. This static mixer 30
Each plate-like element 31 forms a spiral path which is twisted in the axial direction, and the adjacent elements 31 and 31 as shown in FIG.
Are arranged so that they are twisted in opposite directions and cross each other at 90 degrees. The number of elements of the static mixer 30 is preferably about 5 to 10.

【００１０】いま、ミキシングブロック１０の供給口１
１から加圧された溶融原料が混合室１２内に供給される
と、溶融原料はシリンダ状ノズル本体２０ａの周囲に充
填される。一方ノズル２０の注入口２１にも、加圧され
た気体又は液体が注入され、注出口２５から溶融原料に
混入される。この混合物がスタティックミキサー３０を
通過する間に、混入された気体又は液体は、３〜５μｍ
程度の気泡又は液粒になって溶融原料中に均一に分散
し、排出口１３から排出される。そして、図１に示すよ
うに、Ｔダイ５から押し出される際、又はロール６及び
それに続く圧延ロール（図示せず）を通過する際に、気
泡又は液粒は自然に脱落し、フィルムにマイクロボアが
形成される。Now, the supply port 1 of the mixing block 10
When the molten raw material pressurized from 1 is supplied into the mixing chamber 12, the molten raw material is filled around the cylindrical nozzle body 20a. On the other hand, pressurized gas or liquid is also injected into the injection port 21 of the nozzle 20, and is mixed into the molten raw material through the spout 25. While the mixture passes through the static mixer 30, the mixed gas or liquid is 3 to 5 μm
The air bubbles or liquid droplets are uniformly dispersed in the molten raw material and discharged from the outlet 13. Then, as shown in FIG. 1, when being extruded from the T-die 5 or when passing through the roll 6 and the subsequent rolling roll (not shown), bubbles or liquid droplets spontaneously fall off, and the film has a micro-bore. Is formed.

【００１１】図５は、マイクロボアを有する繊維を紡出
する例を示している。図示のように、ホッパー１には原
料チップが投入され、押出機２で加熱溶融された原料
は、トーナメント式に分岐した分配管７に供給される。
分配管７の末端管７ａには、計量ポンプ３を介してミキ
シングブロック１０が接続され、このミキシングブロッ
ク１０には、ポンプ４によって気体又は液体が供給され
計量ポンプ３から供給された溶融原料に注入される。溶
融原料と気体又は液体の混合物は、紡糸パック８に供給
され、ノズル８ａから紡出される。このとき、混入され
た気体又は液体の気泡又は液粒が脱落し、マイクロボア
を有する繊維が得られる。なお、原料供給手段は、押出
機２のほか、重合装置９でもよい。また、紡出する繊維
は合成繊維、半合成繊維、再生繊維のいずれでもよい。
フィルムの場合は、合成樹脂フィルムのほか、セロハン
等にも適用することができる。FIG. 5 shows an example of spinning a fiber having a microbore. As shown, raw material chips are put into the hopper 1, and the raw material heated and melted by the extruder 2 is supplied to a distribution pipe 7 branched in a tournament manner.
A mixing block 10 is connected to the end pipe 7 a of the distribution pipe 7 via a measuring pump 3, and a gas or a liquid is supplied to the mixing block 10 by a pump 4 and injected into a molten raw material supplied from the measuring pump 3. Is done. The mixture of the molten raw material and the gas or liquid is supplied to the spinning pack 8 and spun from the nozzle 8a. At this time, bubbles or liquid particles of the mixed gas or liquid fall off, and a fiber having a microbore is obtained. The raw material supply means may be the polymerization device 9 in addition to the extruder 2. The fibers to be spun may be any of synthetic fibers, semi-synthetic fibers, and regenerated fibers.
In the case of a film, in addition to a synthetic resin film, the invention can be applied to cellophane and the like.

【００１２】[0012]

【発明の効果】この発明によれば、以上のように、Ｔダ
イ又は紡糸パックの直前にミキシングブロックを配置
し、このミキシングブロックにおいて、ノズルに設けた
多数の微小注出口から流体を溶融原料に注入混合した
後、スタティックミキサーで混合して微細な流体粒子と
し均一に分散させたので、この混合物を押し出し又は紡
出することによって、これらの流体粒子がスムーズに脱
落し、マイクロボアを有するフィルム又は繊維が得られ
る。According to the present invention, as described above, a mixing block is disposed immediately before a T-die or a spinning pack, and in this mixing block, fluid is supplied to a molten raw material from a large number of fine spouts provided in a nozzle. After injecting and mixing, since they were mixed with a static mixer and uniformly dispersed as fine fluid particles, by extruding or spinning this mixture, these fluid particles were smoothly dropped off, and a film having a microbore or Fiber is obtained.

【図面の簡単な説明】[Brief description of the drawings]

【図１】この発明のマイクロボアフィルムの製造装置を
示す概略線図FIG. 1 is a schematic diagram showing an apparatus for producing a microbore film of the present invention.

【図２】ミキシングブロックの一部縦断正面図FIG. 2 is a partially longitudinal front view of a mixing block.

【図３】ミキシングブロックに設けられたノズルの縦断
面図FIG. 3 is a longitudinal sectional view of a nozzle provided in the mixing block.

【図４】スタティックミキサーのエレメントを示す斜視
図FIG. 4 is a perspective view showing elements of a static mixer.

【図５】マイクロボア繊維の製造装置を示す概略線図FIG. 5 is a schematic diagram showing an apparatus for producing microbore fibers.

【符号の説明】[Explanation of symbols]

１ ホッパー ２ 押出機 ３ 計量ポンプ ４ ポンプ ５ Ｔダイ ６ ロール ７ 分配管 ７ａ 末端管 ８ 紡糸パック ８ａ ノズル １０ ミキシングブロック １１ 供給口 １２ 混合室 １３ 排出口 ２０ ノズル ２０ａ ノズル本体 ２１ 注入口 ２１ａ 注入口内端縁 ２２ 大径孔 ２３ 中径孔 ２４ 小径孔 ２５ 注出口 ２６ 圧縮コイルスプリング ２７ ボール ３０ スタティックミキサー ３１ 板状エレメント DESCRIPTION OF SYMBOLS 1 Hopper 2 Extruder 3 Metering pump 4 Pump 5 T-die 6 Roll 7 Minute pipe 7a End pipe 8 Spinning pack 8a Nozzle 10 Mixing block 11 Supply port 12 Mixing chamber 13 Discharge port 20 Nozzle 20a Nozzle body 21 Inlet 21a Inlet end of inlet Edge 22 Large-diameter hole 23 Medium-diameter hole 24 Small-diameter hole 25 Injection port 26 Compression coil spring 27 Ball 30 Static mixer 31 Plate element

フロントページの続き Ｆターム(参考） 4F074 AA00 AA02 BA31 CA22 CC03X CC04X CC22X CC23X CC61 CC63 CC64 4F207 AC04 AG01 AG15 AG20 KA01 KA17 KF03 KJ09 KK30 KK90 KL23 KL34 KL84 KL94 KL96 KL99 KW41 KW42 4L045 AA05 BA03 BA27 CA05 CA06Continued on the front page F-term (reference) 4F074 AA00 AA02 BA31 CA22 CC03X CC04X CC22X CC23X CC61 CC63 CC64 4F207 AC04 AG01 AG15 AG20 KA01 KA17 KF03 KJ09 KK30 KK90 KL23 KL34 KL84 KL94 KL96 KL99 KW41 KW05 BA034

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 加圧された溶融原料の供給手段と、この
溶融原料に不溶の加圧された流体の注入手段と、前記溶
融原料と流体の供給を受けてこれらを混合するミキシン
グブロックと、このミキシングブロックから排出された
混合物をフィルム状又は繊維状に押し出す手段より成
り、前記ミキシングブロックは、前記溶融原料を充填す
る混合室と、この混合室内に配置され、前記流体の注入
口と多数の微小な注出口を有するノズルと、このノズル
の下流に配置されたスタティックミキサーを含むマイク
ロボアフィルム又は繊維の製造装置。1. A means for supplying a pressurized molten raw material, a means for injecting a pressurized fluid insoluble in the molten raw material, a mixing block for receiving the supplied molten raw material and a fluid and mixing them. The mixing block comprises means for extruding the mixture discharged from the mixing block into a film shape or a fiber shape.The mixing block is provided with a mixing chamber for filling the molten raw material, and is disposed in the mixing chamber. An apparatus for producing a microbore film or fiber including a nozzle having a fine spout and a static mixer disposed downstream of the nozzle. 【請求項２】 前記ノズルの注出口がシリンダ状ノズル
本体の周方向に配置され、その径が３０〜５０μｍであ
る請求項１に記載のマイクロボアフィルム又は繊維の製
造装置。2. The apparatus for producing a micro-bore film or fiber according to claim 1, wherein the outlet of the nozzle is arranged in a circumferential direction of the cylindrical nozzle body, and has a diameter of 30 to 50 μm.
JP14676099A 1999-05-26 1999-05-26 Micro-bore film or fiber manufacturing equipment Expired - Fee Related JP3550048B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14676099A JP3550048B2 (en) 1999-05-26 1999-05-26 Micro-bore film or fiber manufacturing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14676099A JP3550048B2 (en) 1999-05-26 1999-05-26 Micro-bore film or fiber manufacturing equipment

Publications (2)

Publication Number Publication Date
JP2000334805A true JP2000334805A (en) 2000-12-05
JP3550048B2 JP3550048B2 (en) 2004-08-04

Family

ID=15414958

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007512982A (en) * 2003-12-06 2007-05-24 バイエル・マテリアルサイエンス・アクチェンゲゼルシャフト Method of introducing additives into polymer melt
CN111284001A (en) * 2018-12-07 2020-06-16 罗天珍 Dedicated colour mixture extruder of three-dimensional inkjet printer
CN111300813A (en) * 2018-11-25 2020-06-19 罗天珍 Special contrary formula extruder that ends of three-dimensional inkjet printer

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JP6321929B2 (en) * 2013-08-19 2018-05-09 株式会社中西製作所 Rice washing method, rice washing equipment
JP6518811B2 (en) * 2018-04-06 2019-05-22 株式会社中西製作所 Washing method, washing device, operating method of washing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007512982A (en) * 2003-12-06 2007-05-24 バイエル・マテリアルサイエンス・アクチェンゲゼルシャフト Method of introducing additives into polymer melt
CN111300813A (en) * 2018-11-25 2020-06-19 罗天珍 Special contrary formula extruder that ends of three-dimensional inkjet printer
CN111284001A (en) * 2018-12-07 2020-06-16 罗天珍 Dedicated colour mixture extruder of three-dimensional inkjet printer

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