JP2018118747A - Pouring tool - Google Patents

Pouring tool Download PDF

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JP2018118747A
JP2018118747A JP2017009561A JP2017009561A JP2018118747A JP 2018118747 A JP2018118747 A JP 2018118747A JP 2017009561 A JP2017009561 A JP 2017009561A JP 2017009561 A JP2017009561 A JP 2017009561A JP 2018118747 A JP2018118747 A JP 2018118747A
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liquid repellent
repellent member
liquid
cylindrical main
spout
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JP6870342B2 (en
Inventor
丈太郎 長尾
Jotaro Nagao
丈太郎 長尾
耕太 岡本
Kota Okamoto
耕太 岡本
岩崎　力
Tsutomu Iwasaki
力 岩崎
正毅 青谷
Masatake Aotani
正毅 青谷
諭男 木村
Satoo Kimura
諭男 木村
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Toyo Seikan Group Holdings Ltd
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Toyo Seikan Group Holdings Ltd
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Priority to JP2017009561A priority Critical patent/JP6870342B2/en
Priority to PCT/JP2018/001957 priority patent/WO2018135666A1/en
Publication of JP2018118747A publication Critical patent/JP2018118747A/en
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    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/18—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages for discharging drops; Droppers
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/40—Closures with filling and discharging, or with discharging, devices with drip catchers or drip-preventing means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a pouring tool capable of simply giving liquid repellency at a pouring part serving as a pouring port of content liquid and excellent in liquid draining property.SOLUTION: A liquid repellent member 22 is attached to a pouring part 2 of a pouring tool 1 serving as a pouring port of content liquid, and at least a part of a top surface side of the pouring part 2 is formed with the liquid repellent member 22.SELECTED DRAWING: Figure 1

Description

本発明は、液切れ性に優れた注出具に関する。   The present invention relates to a pouring tool having excellent liquid cutting properties.

従来、醤油、ソース、ドレッシング等の調味料類を収納する注出容器にあっては、内容液を注ぎ出す際の液切れ性を向上させて、液だれを防止する工夫が施されてきた。例えば、注出具として容器本体の口部に取り付けられる中栓の上端周縁に、外方に拡開され湾曲する注出***部を形成することが知られている（例えば、特許文献１参照）。   Conventionally, in a pouring container for storing seasonings such as soy sauce, sauce, dressing, etc., the device has been devised to improve the drainage when pouring out the content liquid and prevent dripping. For example, it is known to form a spout lip that is expanded outward and curved on the periphery of the upper end of an inner stopper attached to the mouth of a container body as a pouring tool (see, for example, Patent Document 1).

また、近年では、微細な凹凸構造による撥液性を利用する様々な技術が提案されている。例えば、特許文献２では、数十ミクロンオーダーの微細な第１の凹凸形状の表面に、撥水性を有する低表面エネルギー物質からなる薄層を積層し、微粒子（コロイダルシリカ）を含有させた当該薄層の表面に第１の凹凸形状よりも小さい表面粗さの第２の凹凸形状が形成されるようにすることで、水との接触角が１５０度以上の超撥水性が達成可能とされている（特許文献２の［００２１］参照）。   In recent years, various techniques using liquid repellency due to a fine uneven structure have been proposed. For example, in Patent Document 2, a thin layer made of a low surface energy substance having water repellency is laminated on the surface of a fine first concavo-convex shape on the order of several tens of microns to contain fine particles (colloidal silica). By forming the second concavo-convex shape having a surface roughness smaller than the first concavo-convex shape on the surface of the layer, it is possible to achieve super water repellency with a contact angle with water of 150 degrees or more. (See [0021] of Patent Document 2).

また、液滴の接触角を大きくして撥液性を付与する技術としては、内容物と接触する面に疎水性酸化物微粒子を付着させることも知られている。例えば、特許文献３によれば、包装材料の最外面に疎水性酸化物微粒子を付着させることで、純水の接触角が１５０度以上を示すとされている（特許文献３の［００５１］参照）。   In addition, as a technique for imparting liquid repellency by increasing the contact angle of a droplet, it is also known to attach hydrophobic oxide fine particles to a surface in contact with the contents. For example, according to Patent Document 3, it is said that the contact angle of pure water shows 150 degrees or more by attaching hydrophobic oxide fine particles to the outermost surface of the packaging material (see [0051] of Patent Document 3). ).

特開２０００−２０３６１９号公報JP 2000-203619 A 特開２００３−１７３６号公報JP 2003-1736 A 特開２０１０−１８４４５４号公報JP 2010-184454 A

ところで、特許文献１の注出容器のように、中栓の上端周縁に、外方に拡開され湾曲する注出***部を形成したものでは、使用している間に、液切れ性が低下し、液だれが発生する場合があった。そして、液だれした内容液の一部が中栓やキャップに付着し固化すると、清潔感を損ね、使用者に不快感を与えてしまうため、液だれを防止する技術の確立が要望されていた。   By the way, in the case where a spout lip portion that is expanded outward and curved is formed on the upper end periphery of the inner plug as in the spout container of Patent Document 1, the liquid breakage is reduced during use. However, dripping may occur. And, since a part of the dripping content liquid adheres to the inner plug or cap and solidifies, it impairs cleanliness and makes the user uncomfortable. Therefore, establishment of technology for preventing dripping has been demanded. .

そこで、本発明者らは、特許文献２，３に開示されているような、液滴の接触角を大きくして撥液性を付与する技術を適用し、液滴に対する転落性を高めることによって、液切れ性に優れた注出具を提供すべく鋭意検討を重ねてきた。   Therefore, the present inventors apply a technique for increasing liquid contact repellency by increasing the contact angle of the liquid droplets as disclosed in Patent Documents 2 and 3, thereby improving the falling property of the liquid droplets. Therefore, intensive studies have been made to provide a pouring tool with excellent liquid drainage.

しかしながら、特許文献１の注出容器が備える中栓などの注出具に対して、撥液性を付与する加工を直接施したのでは、そのハンドリングに煩雑な工程が強いられ、生産性よく加工を施すには限界があるという知見を得るに至った。
また、特許文献２，３に開示された技術のように、微粒子を用いて撥液性を付与しようとした場合には、かかる微粒子の脱落による異物混入の問題が容易に想起される。 However, when the processing for imparting liquid repellency is directly applied to the pouring tool such as the inner stopper provided in the pouring container of Patent Document 1, the handling is complicated and the processing is performed with high productivity. It came to the knowledge that there was a limit in applying.
In addition, as in the techniques disclosed in Patent Documents 2 and 3, when trying to impart liquid repellency using fine particles, the problem of contamination by foreign matters due to the removal of such fine particles is easily recalled.

本発明は、上記したような事情に鑑みてなされたものであり、内容液の注ぎ口となる注出口部に簡便に撥液性を付与することを可能とし、液切れ性に優れた注出具を提供することを目的とする。   The present invention has been made in view of the circumstances as described above, and can easily impart liquid repellency to a spout portion serving as a spout for the content liquid, and is a spout having excellent liquid drainage. The purpose is to provide.

上記目的を達成するため、本発明に係る注出具は、内容液の注ぎ口となる注出口部を備える注出具であって、前記注出口部の少なくとも内容液が通過する天面を含む部分に、撥液部材が取り付けられており、前記注出口部の天面側の少なくとも一部が、前記撥液部材によって形成されている構成としてある。   In order to achieve the above-described object, the pouring tool according to the present invention is a pouring tool including a spout portion that serves as a spout for the content liquid, and includes at least a top surface of the spout portion through which the content liquid passes. The liquid repellent member is attached, and at least a part of the top surface side of the spout part is formed by the liquid repellent member.

本発明によれば、注出口部に撥液部材を取り付けて、注出口部の天面側の少なくとも一部が撥液部材によって形成されるようにすることで、注出口部に簡便に撥液性を付与することを可能とし、優れた液切れ性を発揮させることができる。   According to the present invention, the liquid repellent member is attached to the spout portion, and at least a part of the top surface side of the spout portion is formed by the liquid repellent member. It is possible to impart the property, and the excellent liquid cutting property can be exhibited.

本発明の実施形態に係る注出具の片側断面図である。It is a half sectional view of the extraction tool which concerns on embodiment of this invention. 撥液部材の表面に形成される粗面の一例を模式的に示す説明図である。It is explanatory drawing which shows typically an example of the rough surface formed in the surface of a liquid repellent member. 図２に示す撥液部材の表面での液滴の接触パターンをＣａｓｓｉｅ−Ｂａｘｔｅｒモデル及びＷｅｎｚｅｌモデルで模式的に示す説明図である。It is explanatory drawing which shows typically the contact pattern of the droplet on the surface of the liquid repellent member shown in FIG. 2 with a Cassie-Baxter model and a Wenzel model. 撥液部材の表面に形成される粗面の他の例を模式的に示す説明図である。It is explanatory drawing which shows typically the other example of the rough surface formed in the surface of a liquid repellent member. 図１において鎖線で囲む部分を成形する金型要部の構造を示す説明図である。It is explanatory drawing which shows the structure of the metal mold | die principal part which shape | molds the part enclosed with a dashed line in FIG. 本発明の実施形態に係る注出具を傾けて内容液を注いだ状態を示す説明図である。It is explanatory drawing which shows the state which poured the content liquid by inclining the extraction tool which concerns on embodiment of this invention. 本発明の実施形態に係る注出具の変形例を示す説明図である。It is explanatory drawing which shows the modification of the extraction tool which concerns on embodiment of this invention.

以下、本発明に係る注出具の一実施形態について、図面を参照しつつ説明する。   Hereinafter, an embodiment of a dispensing tool according to the present invention will be described with reference to the drawings.

［注出具］
図１に示す注出具１は、図示しない容器本体に貯蔵された内容液の注ぎ口となる注出口部２とともに、同心状に垂下する内側筒部３と外側筒部４とを備えており、当該容器本体の口部に、中栓として取り付けて使用される。
なお、図1は、本実施形態に係る注出具の正面図と縦断面図とを組み合わせた片側断面図である。 [Pouring tool]
The pouring tool 1 shown in FIG. 1 includes an inner tube portion 3 and an outer tube portion 4 that hang concentrically with a spout portion 2 that serves as a spout for the content liquid stored in a container body (not shown). Used as an inner plug at the mouth of the container body.
FIG. 1 is a half sectional view combining a front view and a longitudinal sectional view of the dispensing tool according to the present embodiment.

注出具１は、容器本体の口部に取り付けた際に、内側筒部３が容器本体の口部内周面に密着する。これとともに、外側筒部４の下端側内周面に周方向に沿って形成された環状の嵌合部４０が、容器本体の口部外周面側に形成された嵌合部と嵌合するようになっており、打栓によって容器本体の口部に液密に取り付けられるようにしてある。さらに、より液密に容器本体の口部に注出具１を取り付けることができるように、注出具１には、容器本体の口部天面に当接する環状の突起１０を設けてある。   When the dispensing tool 1 is attached to the mouth portion of the container body, the inner cylindrical portion 3 is in close contact with the inner peripheral surface of the mouth portion of the container body. At the same time, the annular fitting portion 40 formed along the circumferential direction on the inner peripheral surface on the lower end side of the outer cylinder portion 4 is fitted with the fitting portion formed on the outer peripheral surface side of the mouth portion of the container body. It is designed to be liquid-tightly attached to the mouth of the container body by a stopper. Further, the extraction tool 1 is provided with an annular protrusion 10 that comes into contact with the top of the mouth of the container body so that the extraction tool 1 can be attached to the mouth of the container body in a more liquid-tight manner.

また、注出口部２は、円筒状に立ち上る筒状主部２１を有するとともに、その基部の内周側には封止隔壁２０が設けられており、周方向に沿って環状に形成された切り込み（スコア）２０ａから封止隔壁２０を切り裂くことによって開封できるようになっている。開封後、容器本体を傾けることで、容器本体に貯蔵された内容液は、注出口部２を通して容器外部に注ぎ出される（図６参照）。   In addition, the spout portion 2 has a cylindrical main portion 21 that rises in a cylindrical shape, and a sealing partition wall 20 is provided on the inner peripheral side of the base portion, and is formed in an annular shape along the circumferential direction. (Score) It can be opened by tearing the sealing partition wall 20 from 20a. After opening, the content liquid stored in the container body is poured out of the container through the spout part 2 by tilting the container body (see FIG. 6).

本実施形態において、容器本体の口部に中栓として取り付けて使用される注出具１は、その注出口部２の天面側の部分が、撥液性が付与された撥液部材２２によって形成されている。   In the present embodiment, the pouring tool 1 that is used by being attached to the mouth portion of the container main body as the inner plug is formed by the liquid repellent member 22 provided with liquid repellency at the top side of the spout portion 2. Has been.

［撥液部材］
本実施形態において、撥液部材２２は、非フッ素系樹脂からなり、撥液部材２２の表面を形成する非フッ素系樹脂の分子鎖中に、フッ素原子が組み込まれている。例えば、非フッ素系樹脂の分子鎖を−（ＣＨ２）ｎ−で表すと、この分子鎖の一部にフッ素原子が組み込まれ、例えば−ＣＨＦ−或いは−ＣＦ２−などの含フッ素部分が生成されて、撥液部材２２の表面がフッ素化されるようにしている。 [Liquid repellent material]
In the present embodiment, the liquid repellent member 22 is made of a non-fluorine resin, and fluorine atoms are incorporated in the molecular chain of the non-fluorine resin that forms the surface of the liquid repellent member 22. For example, when the molecular chain of a non-fluorinated resin is represented by-(CH 2 ) n-, a fluorine atom is incorporated into a part of the molecular chain, and a fluorine-containing moiety such as —CHF— or —CF 2 — is generated. Thus, the surface of the liquid repellent member 22 is fluorinated.

撥液部材２２の表面を形成する非フッ素系樹脂の分子鎖中への組み込みは、フッ素プラズマを用いたエッチングにより行うことができる。例えば、ＣＦ４ガスやＳｉＦ４ガスなどを使用し、撥液部材２２（フッ素化前の撥液部材２２を形成する基材）の表面を、一対の電極間に配置し、高周波電界を印加することにより、フッ素原子のプラズマ（原子状フッ素）を生成させ、これを撥液部材２２の表面に衝突させることによって、フッ素原子は撥液部材２２の表面を形成している非フッ素系樹脂の分子鎖中に組み込まれる。すなわち、表面の樹脂が気化乃至分解し、同時に、フッ素原子が組み込まれることとなる。
従って、フッ素原子が組み込まれている領域には、エッチングにより、超微細な凹凸が形成されることとなる。この超微細な凹凸での算術平均粗さＲａは、一般に、１００ｎｍ以下であり、Ｒａ／ＲＳｍ≧５×１０−３である。 Incorporation into the molecular chain of the non-fluorine resin forming the surface of the liquid repellent member 22 can be performed by etching using fluorine plasma. For example, CF 4 gas, SiF 4 gas, or the like is used, the surface of the liquid repellent member 22 (the substrate on which the liquid repellent member 22 before fluorination is formed) is disposed between a pair of electrodes, and a high frequency electric field is applied. Thus, fluorine atom plasma (atomic fluorine) is generated and collided with the surface of the liquid repellent member 22 so that the fluorine atoms are molecules of the non-fluorine resin forming the surface of the liquid repellent member 22. Incorporated into the chain. That is, the resin on the surface is vaporized or decomposed, and at the same time, fluorine atoms are incorporated.
Accordingly, ultra fine irregularities are formed by etching in the region where fluorine atoms are incorporated. The arithmetic average roughness Ra of the ultra-fine irregularities is generally 100 nm or less, and Ra / RSm ≧ 5 × 10 −3 .

また、撥液部材２２の表面は、必要に応じて微細な凹凸形状が形成されるように粗面化することができる（図２参照）。例えば、レジスト法等により所望の凹凸形状に対応する粗面部が形成されたスタンパを適宜の温度に加熱し、これを撥液部材２２の表面に押し当てて粗面部を転写することにより、撥液部材２２の表面を粗面化することができる。   Moreover, the surface of the liquid repellent member 22 can be roughened so that a fine uneven | corrugated shape may be formed as needed (refer FIG. 2). For example, by heating a stamper on which a rough surface portion corresponding to a desired uneven shape by a resist method or the like is heated to an appropriate temperature and pressing the stamper against the surface of the liquid repellent member 22, the liquid repellent portion is transferred. The surface of the member 22 can be roughened.

撥液部材２２の表面を粗面化するにあたっては、微細な凹凸形状の表面の少なくとも一部に、当該凹凸形状より小さな補助用凹凸形状が形成されるようにしてもよい（図４参照）。例えば、微細な凹凸形状が形成されたスタンパに、ブラスト処理などによってさらに微細な凹凸形状を形成しておき、これらを転写するようにすれば、撥液部材２２の表面構造が、相対的に大きい凹凸形状と、その表面に形成された相対的に小さい補助用凹凸形状とを有するように、撥液部材２２の表面を粗面化することができる。   When the surface of the liquid repellent member 22 is roughened, an auxiliary uneven shape smaller than the uneven shape may be formed on at least a part of the surface of the fine uneven shape (see FIG. 4). For example, if a finer concavo-convex shape is formed on a stamper on which a fine concavo-convex shape is formed by blasting or the like, and these are transferred, the surface structure of the liquid repellent member 22 is relatively large. The surface of the liquid repellent member 22 can be roughened so as to have an uneven shape and a relatively small auxiliary uneven shape formed on the surface.

撥液部材２２に用いる非フッ素系樹脂、すなわち、フッ素を含有していない樹脂としては、撥液部材２２の表面に凹凸形状を形成して粗面化でき、かつ、フッ素プラズマエッチングによりフッ素原子の分子鎖中への組み込みが可能である限り、任意の熱可塑性樹脂、熱硬化性樹脂、光硬化性樹脂などを挙げることができる。例えば、ポリエチレン、ポリプロピレン、エチレン、又はプロピレンと他のオレフィンとの共重合体等に代表されるオレフィン系樹脂、ポリエチレンテレフタレート（ＰＥＴ）、ポリエチレンイソフタレート、ポリエチレンナフタレート等のポリエステルが好ましく用いられる。   The non-fluorine resin used for the liquid repellent member 22, that is, a resin not containing fluorine, can be roughened by forming an uneven shape on the surface of the liquid repellent member 22, and fluorine atoms can be removed by fluorine plasma etching. Any thermoplastic resin, thermosetting resin, photocurable resin, and the like can be used as long as the incorporation into the molecular chain is possible. For example, polyethylene, polypropylene, ethylene, or an olefin resin typified by a copolymer of propylene and another olefin, or a polyester such as polyethylene terephthalate (PET), polyethylene isophthalate, or polyethylene naphthalate is preferably used.

［撥液部材の動作原理］
以下、本実施形態における撥液部材２２の動作原理について、図２及び図３を参照しつつ説明する。
本実施形態において、撥液部材２２の表面に形成される粗面の一例を図２に示す。同図において、撥液部材２２の表面には、微細な凹凸形状からなる粗面１００が形成されているとともに（図２において、粗面１００中の凸部の頂部はＳで示されている）、この粗面１００を形成する非フッ素系樹脂の分子鎖中には、フッ素原子が組み込まれている。 [Operation principle of liquid repellent member]
Hereinafter, the operation principle of the liquid repellent member 22 in the present embodiment will be described with reference to FIGS.
In this embodiment, an example of the rough surface formed on the surface of the liquid repellent member 22 is shown in FIG. In the drawing, a rough surface 100 having a fine uneven shape is formed on the surface of the liquid repellent member 22 (in FIG. 2, the top of the convex portion in the rough surface 100 is indicated by S). In the molecular chain of the non-fluorine resin forming the rough surface 100, fluorine atoms are incorporated.

上記のような粗面１００での液滴の撥液性について、図３を参照して説明する。
図３（ａ）に示すように、上記のような粗面１００での液滴の接触パターンは、液滴が粗面１００上に載ったＣａｓｓｉｅモードでは、粗面１００中の凹部がエアポケットとなっており、液滴は固体と気体（空気）との複合接触の状態となる。このような複合接触では、液滴の接触界面での接触半径Ｒは小さく、液滴と粗面の密着力は低く、疎液性が最も高い空気に液体が接触するため、高い撥液性が発現する。このようなＣａｓｓｉｅモードでの粗面１００の接触角は、以下の理論式（１）に示す通りである。
cosθ＊＝（１−φＳ）cosπ＋φＳcosθＥ
＝φＳ−１＋φＳcosθＥ （１）
θＥ：接触角
θ＊：見かけの接触角
φＳ：面積比（単位面積当たりの固−液界面の投影面積）
この理論式（１）から理解されるように、φＳが小さいほど、見かけの接触角θ＊は１８０度に近づき、超撥液性を示すようになる。 The liquid repellency of the droplet on the rough surface 100 will be described with reference to FIG.
As shown in FIG. 3A, the contact pattern of the droplets on the rough surface 100 as described above is such that in the Cassie mode in which the droplets are placed on the rough surface 100, the recesses in the rough surface 100 are air pockets. Thus, the liquid droplet is in a combined contact state between the solid and the gas (air). In such a composite contact, the contact radius R at the contact interface of the droplet is small, the adhesion between the droplet and the rough surface is low, and the liquid comes into contact with the air having the highest lyophobic property. To express. The contact angle of the rough surface 100 in such a Cassie mode is as shown in the following theoretical formula (1).
cosθ * = (1-φ S ) cosπ + φ S cosθ E
= Φ S -1 + φ S cosθ E (1)
θ E : contact angle θ * : apparent contact angle φ S : area ratio (projected area of solid-liquid interface per unit area)
As can be understood from the theoretical formula (1), the smaller the φ S , the closer the apparent contact angle θ * approaches 180 degrees and the super liquid repellency is exhibited.

一方、図３（ｂ）に示すように、液滴が粗面１００中の凹部に侵入した場合には、液滴は上記のような複合接触ではなく、固体のみとの接触となり、Ｗｅｎｚｅｌモードで示される。このようなＷｅｎｚｅｌモードでは、液滴の接触界面での接触半径Ｒは大きく、液滴と粗面の密着力は高い。その凹凸表面の接触角は、以下の理論式（２）に示す通りである。
cosθ＊＝ｒcosθＥ （２）
θＥ：接触角
θ＊：見かけの接触角
ｒ：凹凸度（＝実接触面積／液滴の投影面積）
この理論式（２）から理解されるように、ｒが大きいほど、見かけの接触角θ＊は１８０度に近づき、超撥液性を示すようになる。 On the other hand, as shown in FIG. 3B, when the droplet enters the recess in the rough surface 100, the droplet is not in contact with the composite as described above, but only in contact with the solid, and in Wenzel mode. Indicated. In such a Wenzel mode, the contact radius R at the contact interface of the droplet is large, and the adhesion between the droplet and the rough surface is high. The contact angle of the uneven surface is as shown in the following theoretical formula (2).
cosθ * = rcosθ E (2)
θ E : Contact angle θ * : Apparent contact angle r: Concavity and convexity (= actual contact area / droplet projection area)
As understood from the theoretical formula (2), as r is larger, the apparent contact angle θ * approaches 180 degrees and exhibits super-liquid repellency.

ここで、撥液性については、上記の通り、ＷｅｎｚｅｌモードとＣａｓｓｉｅモードのいずれの状態においても撥液性が向上することが知られているが、粗面１００と液滴との密着力を低減させ、液滴に対する転落性を高めるには、Ｗｅｎｚｅｌモードではなく、Ｃａｓｓｉｅモードを安定的に維持すること、すなわち、凹部のエアポケットを安定に維持することが必要であると考えられる。
すなわち、Ｗｅｎｚｅｌモードでは、液相と固相の界面が大きく、その結果、界面に働く物理的な吸着力も大きくなるため、接触角は大きく撥液はしているが、液滴が容易に転落しない。
これに対して、Ｃａｓｓｉｅモードでは、界面が小さいため、液滴が転落する際乗り越えなければならない密着力が低く、容易に転落し、何度でも繰り返し転落すると考えられる。 Here, with respect to the liquid repellency, as described above, it is known that the liquid repellency is improved in both the Wenzel mode and the Cassie mode, but the adhesion between the rough surface 100 and the droplet is reduced. Therefore, in order to improve the falling property with respect to the droplet, it is considered necessary to stably maintain the Cassie mode, not the Wenzel mode, that is, to stably maintain the air pockets of the recesses.
That is, in the Wenzel mode, the interface between the liquid phase and the solid phase is large, and as a result, the physical adsorption force acting on the interface also increases, so that the contact angle is large and the liquid repellent, but the droplet does not fall easily. .
On the other hand, in the Cassie mode, since the interface is small, the adhesion force that must be overcome when the liquid droplet falls is low, and it is assumed that the liquid drops easily and falls repeatedly.

そこで、本実施形態においては、上記のＣａｓｓｉｅモードでの液滴の接触を有効に維持するために、撥液部材２２の粗面１００を形成している非フッ素系樹脂の分子鎖中にフッ素原子を組み込むことにより、化学的に撥液性を付与するようにしている。
すなわち、粗面１００中の凹部に液体が侵入してしまうと、液滴の接触パターンはＷｅｎｚｅｌモードとなってしまい、この結果、Ｃａｓｓｉｅモードによる超撥液性は損なわれてしまうが、本実施形態では、粗面１００を形成する非フッ素系樹脂の分子鎖中にフッ素原子を組み込むことにより、粗面１００に対して化学的に撥液性を付与することができ、これによって凹部内への液体の侵入が有効に抑制され、Ｃａｓｓｉｅモードによる超撥液性が安定に維持されることとなる。 Therefore, in the present embodiment, in order to effectively maintain the contact of the droplets in the above Cassie mode, fluorine atoms are included in the molecular chain of the non-fluorine resin forming the rough surface 100 of the liquid repellent member 22. Incorporation of the chemical substance provides chemical liquid repellency.
That is, if the liquid enters the concave portion in the rough surface 100, the contact pattern of the droplet becomes the Wenzel mode, and as a result, the super-liquid repellency by the Cassie mode is impaired. Then, by incorporating fluorine atoms into the molecular chain of the non-fluorine resin that forms the rough surface 100, the liquid repellency can be imparted chemically to the rough surface 100, whereby the liquid into the recesses can be provided. Is effectively suppressed, and the super-liquid repellency by the Cassie mode is stably maintained.

特に、本実施形態では、粗面１００の少なくとも一部分、例えば、凸部の頂部や凹部の底部において、この面を形成する非フッ素系樹脂の分子鎖中に、化学的撥液性を発現させるためのフッ素原子が組み込まれるようになっている。このため、この粗面１００に液が繰り返し接触した場合にも、このフッ素原子が取り除かれることはなく、化学的撥液性が安定して維持され、結果として、Ｃａｓｓｉｅモードによる超撥液性が低下することなく、初期段階と同様に高いレベルに維持されるようになる。
さらに、フッ素原子を含む膜を形成するのではなく、表面の非フッ素系樹脂の分子鎖中にフッ素原子を組み込んでいるため、剥離や脱落などによる異物混入の問題も一切生じない。 In particular, in this embodiment, at least a part of the rough surface 100, for example, at the top of the convex portion or the bottom of the concave portion, chemical liquid repellency is expressed in the molecular chain of the non-fluorine resin forming this surface. The fluorine atom is incorporated. Therefore, even when the liquid repeatedly contacts the rough surface 100, the fluorine atoms are not removed and the chemical liquid repellency is stably maintained. As a result, the super liquid repellency by the Cassie mode is maintained. Without being lowered, the high level is maintained as in the initial stage.
Furthermore, since a fluorine atom is incorporated into the molecular chain of the non-fluorine resin on the surface instead of forming a film containing fluorine atoms, there is no problem of contamination due to peeling or dropping.

ここで、上記のような粗面１００の凹凸形状の程度は、Ｃａｓｓｉｅモードによる撥液性が十分に発揮されるように、粗面１００中の単位面積当たりの凸部頂部Ｓの面積で表される面積比φｓが０．０５以上、好ましくは０．０８以上の範囲にあることが好ましい。
さらに、成形性や機械的強度の観点から、面積比φｓは０．８以下、特に０．５以下の範囲にあることが好ましい。
また、粗面１００における深さｄは、５〜２００μｍ、特に１０〜５０μｍの範囲にあることが好適である。 Here, the degree of the concavo-convex shape of the rough surface 100 is expressed by the area of the convex top S per unit area in the rough surface 100 so that the liquid repellency by the Cassie mode is sufficiently exhibited. It is preferable that the area ratio φs is in the range of 0.05 or more, preferably 0.08 or more.
Further, from the viewpoint of moldability and mechanical strength, the area ratio φs is preferably 0.8 or less, particularly preferably 0.5 or less.
The depth d in the rough surface 100 is preferably in the range of 5 to 200 μm, particularly 10 to 50 μm.

本実施形態において、撥液部材２２の表面に形成される粗面は、図２に示した粗面１００の凹凸形状に限定されないが、エアポケットを安定に形成するという観点からは、図２に示したような凸部及び凹部が矩形状に形成されていることが好ましい。例えば、凹部がＶ字形状のような形態となっていると、液滴が凹部内に入り込みやすくなるからである。
また、粗面１００の凹凸形状の凹部内への液滴の侵入がより有効に抑制されるようにするには、図４に示すように、当該凹凸形状の表面の少なくとも一部に、当該凹凸形状より小さな補助用凹凸形状１０１を形成するのが好ましい。このようにすると、液滴が粗面１００上に載ったときに、液滴と補助用凹凸形状との間にもエアポケットが形成されるようになり、これによって、相対的に大きな凹凸形状の凹部への液滴の侵入が阻止されて、Ｃａｓｓｉｅモードによる超撥液性がより安定に維持されることとなる。 In the present embodiment, the rough surface formed on the surface of the liquid repellent member 22 is not limited to the uneven shape of the rough surface 100 shown in FIG. 2, but from the viewpoint of stably forming the air pockets, FIG. It is preferable that the convex part and the concave part as shown are formed in a rectangular shape. For example, if the concave portion is shaped like a V shape, the droplets easily enter the concave portion.
Further, in order to more effectively suppress the intrusion of the liquid droplets into the concave and convex portions of the rough surface 100, the concave and convex portions are provided on at least a part of the concave and convex surface as shown in FIG. It is preferable to form the auxiliary uneven shape 101 smaller than the shape. In this way, when the droplet is placed on the rough surface 100, an air pocket is also formed between the droplet and the auxiliary uneven shape, and thereby a relatively large uneven shape is formed. Intrusion of liquid droplets into the recesses is prevented, and the super liquid repellency by the Cassie mode is maintained more stably.

撥液部材２２の表面は、フッ素化され、かつ、粗面化されることが、撥液性を向上させることから好ましいが、撥液部材２２の表面は、少なくともフッ素化されていれば、撥液性能を発揮することができる。また、前述したように、撥液部材２２の表面をフッ素化するためのプラズマ処理は、非常にアタック性の強いもので、プラズマ処理によって撥液部材２２の表面には微細な凹凸が形成されて粗面化される。
従って、撥液部材２２の表面は、少なくともフッ素化されていればよく、必要に応じて、さらに撥液部材２２の表面を粗面化するものであれば良い。 The surface of the liquid repellent member 22 is preferably fluorinated and roughened in order to improve the liquid repellency. However, if the surface of the liquid repellent member 22 is at least fluorinated, the surface is repellent. Liquid performance can be demonstrated. In addition, as described above, the plasma treatment for fluorinating the surface of the liquid repellent member 22 has a very strong attack, and fine irregularities are formed on the surface of the liquid repellent member 22 by the plasma treatment. Roughened.
Therefore, the surface of the liquid repellent member 22 only needs to be at least fluorinated, and if necessary, the surface of the liquid repellent member 22 may be further roughened.

［注出口部の構造］
図１に示す例において、注出具１の注出口部２には、筒状主部２１の外周面に対して外方に突出する張り出し部２２ａを有する環状の撥液部材２２が、円筒状に立ち上る筒状主部２１の開口側端縁部に取り付けられている。そして、環状に形成された撥液部材２２の内径は、撥液部材２２の内周面が筒状主部２１の内周面と面一になるように、筒状主部２１の内径と同径とされている。これにより、注出口部２の天面側の部位が、その全周にわたって撥液部材２２によって構成されるようにしている。
また、撥液部材２２の内周面側には、筒状主部２１の開口側端縁部の厚み分が周方向に沿って切り欠かれて、筒状主部２１の開口側端縁部と係合する係合段部２２ｂが形成されており、撥液部材２２が、張り出し部２２ａを除く部位において、筒状主部２１の開口側端縁部と係合した状態で接合されるようにしている。 [Structure of spout part]
In the example shown in FIG. 1, an annular liquid repellent member 22 having a protruding portion 22 a that protrudes outward with respect to the outer peripheral surface of the cylindrical main portion 21 is formed in a cylindrical shape at the spout portion 2 of the extraction tool 1. It is attached to the opening side edge of the cylindrical main part 21 that rises. The inner diameter of the liquid repellent member 22 formed in an annular shape is the same as the inner diameter of the cylindrical main portion 21 so that the inner peripheral surface of the liquid repellent member 22 is flush with the inner peripheral surface of the cylindrical main portion 21. It is the diameter. Thereby, the site | part of the top | upper surface side of the spout part 2 is comprised by the liquid repellent member 22 over the perimeter.
Further, on the inner peripheral surface side of the liquid repellent member 22, the opening side edge portion of the cylindrical main portion 21 is notched along the circumferential direction, and the opening side edge portion of the cylindrical main portion 21 is cut. An engagement step portion 22b that engages with the liquid repellent member 22 is formed so that the liquid repellent member 22 is joined in a state of being engaged with the opening side edge portion of the cylindrical main portion 21 at a portion other than the protruding portion 22a. I have to.

注出具１の注出口部２に撥液部材２２を取り付けるには、超音波融着、熱融着、接着剤、嵌合などの適宜手段によって取り付けるようにしてもよく、脱着可能としてもよい。
また、例えば、図５に示すように、撥液部材２２をインサート材として金型内に配置し、インモールド成形により注出具１を成形することによって取り付けてもよい。
なお、図５は、撥液部材２２をインサート材として金型内に配置して、注出具１をインモールド成形する場合に、図１において鎖線で囲む部分を成形する金型要部の構造を示す説明図である。 In order to attach the liquid repellent member 22 to the spout part 2 of the dispensing tool 1, it may be attached by appropriate means such as ultrasonic fusion, thermal fusion, adhesive, fitting, etc., or may be removable.
Further, for example, as shown in FIG. 5, the liquid repellent member 22 may be disposed as an insert material in a mold and attached by molding the extraction tool 1 by in-mold molding.
5 shows the structure of the main part of the mold for molding the portion surrounded by the chain line in FIG. 1 when the liquid repellent member 22 is placed in the mold as an insert material and the pouring tool 1 is molded in-mold. It is explanatory drawing shown.

インモールド成形に際し、金型内に加圧状態で射出された溶融樹脂によって、撥液部材２２がキャビティ面に押し付けられると、撥液部材２２の粗面１００の凹凸形状が押し潰されて、撥液性が損なわれてしまうことが懸念されるが、注出口部２の構造を図１に示すようにすることで、そのような不具合を有効に回避することができる。
すなわち、インモールド成形する際の筒状主部２１を形成する樹脂の流れ方向を図５に矢印で示すが、筒状主部２１の外周面に対して外方に突出する張り出し部２２ａを有する撥液部材２２を、張り出し部２２ａを除く部位において、筒状主部２１の開口側端縁部に接合されるようにすることで、筒状主部２１の開口側端縁部に接合される撥液部材２２の内周面側の部位（係合段部２２ｂ）には射出樹脂圧がかかるものの、張り出し部２２ａには射出樹脂圧がかからないようにすることができる。これにより、少なくとも張り出し部２２ａにおいて、撥液部材２２の粗面１００の凹凸形状が押し潰されてしまうのを抑制し、その撥液性が損なわれないようにすることができる。 In in-mold molding, when the liquid repellent member 22 is pressed against the cavity surface by the molten resin injected into the mold in a pressurized state, the uneven shape of the rough surface 100 of the liquid repellent member 22 is crushed and repelled. Although there is a concern that the liquidity is impaired, such a problem can be effectively avoided by making the structure of the spout portion 2 as shown in FIG.
That is, the flow direction of the resin that forms the cylindrical main portion 21 during in-mold molding is indicated by an arrow in FIG. 5, and has an overhanging portion 22 a that protrudes outward with respect to the outer peripheral surface of the cylindrical main portion 21. The liquid repellent member 22 is joined to the opening side edge of the cylindrical main part 21 by joining the liquid repellent member 22 to the opening side edge of the cylindrical main part 21 in a portion excluding the projecting part 22a. Although the injection resin pressure is applied to the inner peripheral surface side portion (engagement step portion 22b) of the liquid repellent member 22, it is possible to prevent the injection resin pressure from being applied to the overhang portion 22a. Thereby, it is possible to suppress the concavo-convex shape of the rough surface 100 of the liquid repellent member 22 from being crushed at least in the overhanging portion 22a, and to prevent the liquid repellency from being impaired.

撥液部材２２は、注出具１よりも小さな部材であるため、フッ素化・粗面化する際の搬送効率が向上するとともに、処理装置を小型化でき、同時にフッ素化・粗面化できる数を増やすこともできる。また、フィルム状又はシート状の基材をフッ素化・粗面化した後に、これを打ち抜いて撥液部材２２を作製することもできる。
従って、注出口部２に撥液部材２２を取り付けて、かかる撥液部材２２によって注出口部２の天面側の部位が形成されるようにすることで、内容液の注ぎ口となる注出口部２に簡便に撥液性を付与することができる。そして、図６（ａ）に示すように、傾けられた注出具１の注出口部２を通して必要量の内容液が注がれると、図６（ｂ）に示すように、その液滴が注出口部２の天面から転落することによって、優れた液切れ性を発揮させることができる。 Since the liquid repellent member 22 is a member smaller than the pouring tool 1, the transport efficiency during fluorination / roughening can be improved, the processing apparatus can be downsized, and the number that can be fluorinated / roughened simultaneously. It can also be increased. Alternatively, the liquid-repellent member 22 can be produced by punching a film-like or sheet-like base material and then punching it.
Accordingly, by attaching the liquid repellent member 22 to the spout portion 2 so that the top surface side portion of the spout portion 2 is formed by the liquid repellent member 22, the spout serving as the spout of the content liquid The liquid repellency can be easily imparted to the portion 2. Then, as shown in FIG. 6 (a), when a necessary amount of the content liquid is poured through the spout port 2 of the tilted dispensing tool 1, the droplets are poured as shown in FIG. 6 (b). By falling from the top surface of the outlet portion 2, excellent liquid drainage can be exhibited.

以上、本発明について、好ましい実施形態を示して説明したが、本発明に係る注出具は、上述した実施形態にのみ限定されるものではなく、本発明の範囲で種々の変更実施が可能であることは言うまでもない。   Although the present invention has been described with reference to the preferred embodiment, the dispensing tool according to the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. Needless to say.

例えば、上述した実施形態では、撥液部材２２の内周面側に、筒状主部２１の開口側端縁部の厚み分を切り欠いてなる係合段部２２ｂを形成することで、撥液部材２２が、張り出し部２２ａを除く部位において、筒状主部２１の開口側端縁部と係合した状態で接合されるようにしているが、これに限定されない。図７に示すようにして、撥液部材２２が、筒状主部２１の開口側端縁部に接合されるようにしてもよい。   For example, in the above-described embodiment, the engagement step portion 22b formed by cutting out the thickness of the opening side edge portion of the cylindrical main portion 21 is formed on the inner peripheral surface side of the liquid repellent member 22. The liquid member 22 is joined in a state where the liquid member 22 is engaged with the opening-side end edge portion of the cylindrical main portion 21 at a portion other than the overhanging portion 22a, but is not limited thereto. As shown in FIG. 7, the liquid repellent member 22 may be joined to the opening side edge of the cylindrical main portion 21.

図７に示す変形例では、筒状主部２１の開口側端縁部が、周方向に沿って斜めに切り欠かれて、外周面側に向かって下るように傾斜するテーパー状に形成されているとともに、撥液部材２２の内周面側には、筒状主部２１の開口側端縁部と当接するテーパー曲面部２２ｃが形成されている。これにより、撥液部材２２が、張り出し部２２ａを除く部位において、筒状主部２１の開口側端縁部と当接した状態で接合されるようにしている。
ここで、図７（ａ）は、本変形例の片側断面図であり、本変形例において、撥液部材２２をインサート材として金型内に配置して、注出具１をインモールド成形する場合に、図７（ａ）において鎖線で囲む部分を成形する金型要部の構造を図７（ｂ）に示す。 In the modification shown in FIG. 7, the opening-side edge portion of the cylindrical main portion 21 is notched obliquely along the circumferential direction and is formed in a tapered shape that is inclined downward toward the outer peripheral surface side. In addition, a tapered curved surface portion 22 c that abuts on the opening side edge of the cylindrical main portion 21 is formed on the inner peripheral surface side of the liquid repellent member 22. As a result, the liquid repellent member 22 is joined in a state in which the liquid repellent member 22 is in contact with the opening-side edge of the cylindrical main portion 21 at a portion other than the protruding portion 22a.
Here, FIG. 7A is a one-side cross-sectional view of the present modified example, and in this modified example, the liquid repellent member 22 is placed in the mold as an insert material, and the pouring tool 1 is molded in-mold. FIG. 7B shows the structure of the main part of the mold for molding the portion surrounded by the chain line in FIG.

図７（ｂ）に、インモールド成形する際に撥液部材２２のテーパー曲面部２２ｃにかかる樹脂圧Ｐとその分力を矢印で示し、テーパー状に形成された筒状主部２１の開口側端縁部の勾配をθで示すが、撥液部材２２をキャビティ面に押し付けようとする力は、Ｐ・ｃｏｓθに減衰する。
したがって、本変形例によれば、筒状主部２１の開口側端縁部に接合される撥液部材２２の内周面側の部位（テーパー曲面部２２ｃ）には射出樹脂圧がかかるものの、当該部位をキャビティ面に押し付けようとする力を減衰させることができる。これによって、張り出し部２２ａを除く部位においても、撥液部材２２の粗面１００の凹凸形状が押し潰されてしまうのを抑制することが可能となり、より有効に、撥液部材２２の撥液性が損なわれないようにすることができる。 In FIG. 7B, the resin pressure P applied to the tapered curved surface portion 22c of the liquid repellent member 22 and its component force during in-mold molding are indicated by arrows, and the opening side of the cylindrical main portion 21 formed in a tapered shape. The gradient of the edge portion is indicated by θ, but the force to press the liquid repellent member 22 against the cavity surface is attenuated to P · cos θ.
Therefore, according to this modification, although the injection resin pressure is applied to the inner peripheral surface side portion (tapered curved surface portion 22c) of the liquid repellent member 22 joined to the opening side edge of the cylindrical main portion 21, The force that tries to press the part against the cavity surface can be attenuated. As a result, it is possible to suppress the concavo-convex shape of the rough surface 100 of the liquid repellent member 22 from being crushed even in the portion excluding the overhanging portion 22a, and more effectively the liquid repellent property of the liquid repellent member 22 Can be kept intact.

また、上述した実施形態では、注出口部２の天面側の部位が、その全周にわたって環状の撥液部材２２によって形成されるようにしているが、これに限定されない。例えば、特に図示しないが、注出具１には、注出口部２を封止する蓋体がヒンジ部を介して接続されている形態のものがあり、このような形態のもにあっては、蓋体が接続された側とは反対側から内容液を注ぎ出すことになる。このような形態の注出具１に本発明を適用する場合には、注出口部２の少なくとも内容液が通過する部分であって、その天面を含む部分に、撥液部材２２を取り付けて、注出口部２の天面側の少なくとも一部が撥液部材２２によって形成されるようにすることができる。
また、上述した実施形態のように、注出口部２は、通常、円筒状に立ち上る筒状主部２１を有しているが、筒状主部２１は、必要に応じて、角筒状に立ち上るように形成してもよい。 In the above-described embodiment, the top surface side portion of the spout portion 2 is formed by the annular liquid repellent member 22 over the entire circumference, but is not limited thereto. For example, although not particularly illustrated, the dispensing tool 1 has a form in which a lid that seals the spout part 2 is connected via a hinge part. In such a form, The content liquid is poured out from the side opposite to the side to which the lid is connected. When applying the present invention to the pouring tool 1 in such a form, the liquid repellent member 22 is attached to the portion of the spout portion 2 through which at least the content liquid passes, including the top surface thereof, At least a part of the top surface side of the spout part 2 can be formed by the liquid repellent member 22.
Moreover, although the spout part 2 has the cylindrical main part 21 which stands | starts up in a cylindrical shape normally like embodiment mentioned above, the cylindrical main part 21 is a rectangular tube shape as needed. You may form so that it may stand up.

本発明は、例えば、醤油、ソース、ドレッシング等の調味料類、洗剤、化粧品等の薬液類などを内容液として、かかる内容液を液切れ良く注ぎ出すことができる注出具として利用することができる。   INDUSTRIAL APPLICABILITY The present invention can be used, for example, as a pouring tool capable of pouring out the content liquid with good liquid content, such as seasonings such as soy sauce, sauce, dressing, etc., and chemicals such as detergents and cosmetics. .

１ 注出具
２ 注出口部
２１ 筒状主部
２２ 撥液部材
２２ａ 張り出し部
２２ｂ 係合段部
１００ 粗面（凹凸形状）
１０１ 補助用凹凸形状 DESCRIPTION OF SYMBOLS 1 Pouring tool 2 Pouring port part 21 Tubular main part 22 Liquid repellent member 22a Overhang | projection part 22b Engagement step part 100 Rough surface (uneven shape)
101 Concave and convex shape for auxiliary

Claims (7)

内容液の注ぎ口となる注出口部を備える注出具であって、
前記注出口部の少なくとも内容液が通過する天面を含む部分に、撥液部材が取り付けられており、
前記注出口部の天面側の少なくとも一部が、前記撥液部材によって形成されていることを特徴とする注出具。 A pouring tool having a spout portion that serves as a spout for the content liquid,
A liquid repellent member is attached to a portion including at least the top surface of the spout portion through which the content liquid passes,
At least a part of the top side of the spout part is formed by the liquid repellent member. 前記撥液部材が非フッ素系樹脂からなり、
前記撥液部材の表面を形成する非フッ素系樹脂の分子鎖中に、フッ素原子が組み込まれている請求項１に記載の注出具。 The liquid repellent member is made of a non-fluorine resin,
The extraction tool according to claim 1, wherein a fluorine atom is incorporated in a molecular chain of a non-fluorine resin that forms a surface of the liquid repellent member. 前記撥液部材の表面構造が、凹凸形状を有する請求項１又は２に記載の注出具。   The extraction tool according to claim 1 or 2, wherein a surface structure of the liquid repellent member has an uneven shape. 前記凹凸形状の表面の少なくとも一部が、前記凹凸形状より小さな補助用凹凸形状を有する請求項３に記載の注出具。   The extraction tool according to claim 3, wherein at least a part of the uneven surface has an auxiliary uneven shape smaller than the uneven shape. 前記注出口部が筒状に立ち上る筒状主部を有し、
前記撥液部材が、前記筒状主部の外周面に対して外方に突出する張り出し部を有するとともに、前記張り出し部を除く部位において、前記筒状主部の開口側端縁部に接合されている請求項１〜４のいずれか一項に記載の注出具。 The spout portion has a cylindrical main portion that rises in a cylindrical shape,
The liquid repellent member has a protruding portion that protrudes outward with respect to the outer peripheral surface of the cylindrical main portion, and is joined to the opening-side edge of the cylindrical main portion at a portion other than the protruding portion. The extraction tool according to any one of claims 1 to 4. 前記撥液部材が、内径が前記筒状主部の内径と同径の環状に形成されて、前記撥液部材の内周面と前記筒状主部の内周面とが面一とされているとともに、前記撥液部材の内周面側には、前記筒状主部の開口側端縁部と係合する係合段部が形成されている請求項５に記載の注出具。   The liquid repellent member is formed in an annular shape having an inner diameter that is the same as the inner diameter of the cylindrical main portion, and the inner peripheral surface of the liquid repellent member and the inner peripheral surface of the cylindrical main portion are flush with each other. The extraction tool according to claim 5, wherein an engagement step portion that engages with an opening side edge portion of the cylindrical main portion is formed on the inner peripheral surface side of the liquid repellent member. 前記筒状主部の開口側端縁部が、前記筒状主部の外周面側に向かって下るように傾斜するテーパー状に形成されているとともに、前記撥液部材の内周面側には、前記筒状主部の開口側端縁部と当接するテーパー曲面部が形成されている請求項５に記載の注出具。   An opening side edge of the cylindrical main portion is formed in a tapered shape so as to be inclined toward the outer peripheral surface side of the cylindrical main portion, and on the inner peripheral surface side of the liquid repellent member The dispensing tool according to claim 5, wherein a tapered curved surface portion that comes into contact with an opening side edge portion of the cylindrical main portion is formed.
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