200823109 * * 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種包裝容器、其製造方法及製造裝置 【先前技術】 先财’作為食品等的包裝形態之―，有使用包裝容器之 密封包裝。此種密封包裝，係在容ϋ时納或填充該食品 等之後’將設於容器本體之開σ部周緣的凸緣部與薄膜狀 Ο υ 之，材熱封而密封。於此種包裝容器巾，藉由自容器本體 剝離蓋材，取出所收納之食品等。 /可是，於如前所述之密封容器中，期望有即使開封一次 後亦可再次密封容n，以防止内容物之乾燥與浅漏者。 例如，於文獻}(曰本專利特公昭Μ」”％號公報）中， 揭示=由熱封以熱封層/黏合層/基材層之多層片體所形 成之奋态與盍材而加以密封，若將其開封則黏合層露出， 可再次密封的形態。 力一万面’因具備可再次密封之便利功能，故有即使 ，内容物或混人異物等並再次密封，亦不會發覺而作為 二陳列之虞。於開封後再次密封之狀態，其剝離面變 ;界面内合有氣泡，亦並非無法視認已開封過一次 難以進行明確之判斷。 因此’為使表示是否已開封之開封視認性提高，於文獻 二曰本專利特開顧挪似 ^ 二色^之形態。此發明係使黏合層含有着色劑時， ;’封引舁開封後色調完全不同，藉此進行開封視認者。 123603.doc 200823109 此外，於文獻3 (曰本專利特開2005_3 13953號公報）中揭 示有於基材層印刷剝離顯示，於開封後使此剝離顯示露出 之技術。 【發明内容】 〔發明所欲解決之問題〕 然而，於鈾述文獻2之方法中，對於一般消費者而今， 難以判斷哪種顏色表示開封狀態，此外，為確認色調，而 必須使蓋材之熱封部為透明，故設計受限。進而，若使黏 合樹脂層含有着色劑，則另外需要不損傷黏合力之特殊着 色劑色母，即使直接投入擠壓機，亦會污染擠壓機内部， 故生産性受損。 此外，於前述文獻3中產生印刷此一作業，故製造步驟 變為繁雜。 本發明之主要目的係提供一種可容易地進行開封視認， 容易且廉價地製造，並可再次密封之包裝容器及其製造方 法。 〔解決問題之技術手段〕 本發明之包裝容器，係具備於開口部周緣形成凸緣部之 容器本體’與封閉前述開口部同時以密封部密封與前述凸 緣部之間的蓋材，並於前述凸緣部或前述蓋材之任一方設 置用以將已開封之前述蓋材再次密封於前述容器本體之黏 合層者，其特徵在於：於前述凸緣部之自前述密封部的^ 封開始位置向外側之區域的部分，形成開封視認部，該開 封視認部具有部分密封前述容器本體與前述蓋材之中央部 123603.doc 200823109 與沿该中央部之外周形成之缺口部，此開封視認部於開封 時使前述容器本體與前述蓋材之至少一方變形。 Ο Ο 若藉由本發明，則於自形成於凸緣部之密封部的開封開 始位置向外側之區域的部分形成開封視認部。因開封視認 部具有部分密封容器本體與蓋材之中央部與沿中央部之外 周形成之缺口部，故於開封包裝容器時，缺口部成為切斷 1 α位置盍材或谷器本體被切斷並變形。所謂變形係指 例如蓋材或容器本體斷裂、或開孔之狀態。 ^因此，因若開封一次則蓋材或容器本體變形並形成開孔 等’故即使於再次密封包裝容器之情形，亦可容易地確認 〗封者此外，對於一般消費者，易於理解開孔之狀 態係已開封者。 於本^之包裝容器中，前述缺口部宜具有蓋材薄膜j 切=切斷部與蓋材薄膜未切斷之連接部。 若藉由本發明’則因具有蓋材薄膜已切斷之切斷部與】 材薄膜未切斷之土表垃立 接心故於開封包裝容器時’僅切斷, 緣斷裂，從而可以開封包裝容器之力令開封視認心 衣攸而可實現易開封性。 於本發明之白驻六w ^ 的外周並相對之^^ 述切斷部宜以沿前述中央苟 的端部血端部之/ I前述連接部宜㈣前述切斷部 置形成。 間’並於前述中央部外周之彼此相對的位 右藉由本發明， 式形成，切斷部之 則切斷部以沿中央部之外周並相對之方 端部與端部之間成為連接部。例如，於 I23603.doc 200823109 中央部係圓形之情形’平面視大致呈半圓弧 彼此相對之方式形成，切斷部的端部與㈣=以 部，形成於中央部外周之相對位置。 成為連接200823109 * * IX. Description of the invention: [Technical field of the invention] The present invention relates to a packaging container, a method for manufacturing the same, and a manufacturing apparatus. [Prior Art] The first product is used as a packaging form for foods and the like, and a packaging container is used. sealed package. In such a sealed package, the flange portion provided on the periphery of the opening σ portion of the container body and the film-like crucible are sealed and sealed after being filled or filled with the food. In such a packaging container, the cover material is peeled off from the container body, and the stored food or the like is taken out. However, in the sealed container as described above, it is desirable to seal the capacity n even after opening once to prevent the contents from drying and leaking. For example, in the literature (Japanese Patent Laid-Open), "%", it is revealed that the heat-sealing layer/heat-bonding layer/adhesive layer/substrate layer is formed by a multilayer sheet. Sealing, if it is unsealed, the adhesive layer is exposed, and the shape can be sealed again. Force 10,000-face' has a convenient function of re-sealing, so even if the contents or mixed foreign matter are sealed again, it will not be detected. As the second display, the peeling surface changes in the state of being sealed again after opening, and there is a bubble in the interface, and it is not impossible to visually recognize that it has been opened once and it is difficult to make a clear judgment. Therefore, "To make it clear whether the seal has been opened or not The visibility is improved, and the patent is in the form of a two-color method. The invention is such that when the adhesive layer contains a coloring agent, the color of the sealing layer is completely different after opening, thereby opening the visually recognized person. A technique for printing and peeling off a base material layer and exposing the peeling display after opening is disclosed in Japanese Patent Application Laid-Open No. Hei. No. Hei. The problem to be solved by the invention] However, in the method of the uranium literature 2, it is difficult for the average consumer to judge which color indicates the unsealing state, and in addition, in order to confirm the color tone, the heat seal portion of the cover material must be made transparent. Therefore, if the adhesive resin layer contains a coloring agent, a special colorant color master which does not damage the adhesive force is required, and even if it is directly put into the extruder, the inside of the extruder is contaminated, so productivity is affected. Further, the printing operation is produced in the above-mentioned document 3, so that the manufacturing steps become complicated. The main object of the present invention is to provide a packaging container which can be easily opened and opened, is easy and inexpensive to manufacture, and can be resealed. [Technical method for solving the problem] The packaging container according to the present invention is characterized in that the container body having the flange portion formed on the periphery of the opening portion is sealed between the sealing portion and the flange portion while closing the opening portion. a cover material disposed on one of the flange portion or the cover member to seal the opened cover material to the container body The adhesive layer is characterized in that an opening opening portion is formed in a portion of the flange portion that is outward from a sealing start position of the sealing portion, and the opening viewing portion has a partial seal between the container body and the cover member The central portion 123603.doc 200823109 and the notch portion formed along the outer periphery of the central portion, the unsealing viewing portion deforms at least one of the container body and the cover member at the time of opening. Ο Ο By the present invention, self-forming The opening-closing portion is formed in a portion of the sealing portion of the flange portion that is opened to the outside. The opening-closing portion has a portion that seals the container body and the center portion of the lid member and a notch portion formed along the outer circumference of the center portion. When the packaging container is opened, the notch portion is cut and deformed by cutting the 1α position coffin or the bar body. The term "deformation" refers to, for example, a state in which the lid member or the container body is broken or opened. ^ Therefore, if the lid member or the container body is deformed and the opening is formed, such as opening one time, even if the packaging container is sealed again, it is easy to confirm the sealer. In addition, for the general consumer, it is easy to understand the opening. The status is open. In the packaging container of the present invention, the notch portion preferably has a cover material film cut = a connection portion between the cut portion and the cover material film. According to the present invention, since the cut portion having the cover film is cut off and the unsealed soil surface of the film is placed, the package is opened only when the package is opened, and the edge is broken, so that the package can be opened. The force of the container allows the opening of the envelope to be easy to open. Preferably, the cutting portion is formed on the outer periphery of the white standing portion w^ of the present invention, and the cutting portion is preferably formed along the end portion of the blood end portion of the central end portion. The position which is opposite to each other on the outer circumference of the central portion is formed by the present invention, and the cut portion is a connecting portion between the opposite end portions and the end portion along the outer circumference of the central portion. For example, in the case of I23603.doc 200823109, the central portion is circular, and the plane is formed so that the semicircular arc is substantially opposite to each other. The end portion of the cut portion and the (four) = portion are formed at the relative positions of the outer periphery of the center portion. Become connected
因此，於開封包裝容器時’僅切斷相對之連 故可以開封包裝容器之力容易地切斷。 H 前述開封視認部’其連接前述相對之前料 宜配置於與開封前述包 U的直線 展谷态之方向交又的方向。 Γ Ο 右精由本發明’則因開封視認部其連接相對之 直線配置於盥開封七挞A _ 運接口p的 ，、開封包裝谷益之方向交又的方向， 包裝容器時，易於斟、击拉加A 文於開封 於本發明’可容胃地精連接部。 成薄壁狀。 现材溥膜宜形 藉由本發明，則因缺口部沿密封容器本體盘 央部的外周形成為薄壁狀，故缺口部易於切斷之二 自薄壁妝夕地* ⑼因此，可 緣。再者，為：開始切斷，可容易地切斷開封視認部周 & 1 、/、有更佳之開封性，可於中央部之全周彤成 為薄壁狀。 1〜王周形成 述之?造方法’其特徵在於:藉由於前 端為尖形‘部重疊之狀態下，自前述蓋材上按壓頂 ^ <熟封齒，形成開封視認部。 右错由本發明，則為形成開封視 器本體重合，白/、要使盍材與容 步驟即可〜 之上按壓熱封齒即可，故無須特別之 J #易且價廉地製造。 “之包裴容器之製造裝置，其特徵在於具備：於前 123603.doc 200823109 述蓋材與前述凸緣冑重4^< 壓而形成開封視認部之熱封齒‘%下，#由自前述蓋材上按 封齒之’則因使用具備用以形成開封視認部之熱 认丄 谷易地形成開封視認部。 於本發明之包裝容器 tI I化裝置中，w述熱封齒宜係於 : 形成凹部，包圍前述凹部之外周部為沿全周部分 :!之形狀’或係全周整體呈尖形之形狀。Therefore, when the packaging container is opened, the force of unsealing the packaging container can be easily cut off only by cutting off the relative closure. H is to be disposed in the direction in which the opening and closing portions are disposed in a direction opposite to the direction in which the straight line of the bag U is opened. Γ 右 右 由 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右 右Laga A is opened in the present invention. Made into a thin wall. According to the present invention, since the notch portion is formed in a thin wall along the outer circumference of the central portion of the sealing container body, the notch portion is easily cut off from the thin wall makeup layer* (9). Further, in order to start cutting, the opening and closing portion of the opening portion can be easily cut, and the opening and closing property can be improved, and the outer portion of the central portion can be formed into a thin wall. 1 to Wang Zhou Formation The method of manufacturing is characterized in that the opening and closing portion is formed by pressing the top cover from the cover member in a state in which the front end is in a pointed shape. According to the present invention, it is only necessary to press the heat-sealing tooth to form the unsealing device, and it is not necessary to manufacture the heat-sealing tooth. "The manufacturing apparatus of the packaging container is characterized in that: the front cover 123603.doc 200823109 describes the cover material and the flange weight 4^<presses to form the heat-sealing tooth of the opening-closing portion, %# The sealing member on the cover material is formed by the use of a heat-receiving portion for forming the unsealing portion. The packaging device tII device of the present invention is preferably a heat-sealing tooth. And: forming a concave portion, and surrounding the outer peripheral portion of the concave portion is a shape along the entire circumference portion: a shape of the whole shape or a whole shape of the entire circumference.
ϋ :由本&明’則因熱封齒之外周部係部分呈尖形之形 t’/tJ"此熱㈣密封時，壓力集中於抵接於外周部之 大：π分的盍材㈣’蓋材薄膜部分斷裂，形成缺口部。 另方面，盘材與容器本體藉由凹部而密封，形成開封視 認部。 /匕外’於熱封齒之外周部形狀於全周整體呈尖形之情 形，壓力集中於抵接於外周部之部分，沿開封視認部之外 周形成蓋材薄膜變薄之缺口部。 因此’可僅以按壓熱封齒形成密封部分與缺口部，從而 可以一步驟形成開封視認部。 【實施方式】 以下，基於圖式對本發明之實施形態進行説明。於各實 施形態之説明中，賦予同一符號之構件省略或簡化其説 明。 〔第一實施形態〕 圖1A及圖1B顯示第一實施形態相關之包裝容器的概略 圖。圖1A係顯示密閉狀態之包裝容器的立體圖，圖⑶係 123603.doc 200823109 顯示部份開封之狀態之包裝容器的立體圖。 於圖1A及圖1B中，包萝交哭】曰规^ 裝合斋1具備於凹部收納内容物之 平面視大致呈矩形狀的定哭女触ο 幻谷态本體2，於此容器本體2中，用 以封閉於其中心部形成之平面滿士 卞®税大致呈矩幵》的開口部2 i的 … 歸3係熱封於配設於開口部21周緣的凸緣部22上。此凸 • 緣部22與盍材3之熱封藉由密封部23進行。 纟器本體2之凸緣部22，其四個角中具有開封開始位置8 〇 @ 一角向外側突出地擴張形成，且較密封部23之面低一層 而形成外伸部24。 於自開封開始位置S至外伸部24之外周的區域，形成部 分畨封谷器本體2與蓋材3之開封視認部4。 圖2A係本實施形態之開封視認部4周緣的放大目，圖π 係前述圖2A之B-B線剖面圖。 開封視認部4之形狀為平面視圓形，於外伸部24之大致 中央形成。位於開封視認部4之中央的中央部4丨密封容器 〇 本體與2與蓋材3，此外，沿中央部μ之外周形成有缺口部 42 〇 缺口部42由蓋材薄膜已切斷的切斷部421與蓋材薄膜未 切斷的連接部422構成，切斷部421形成為平面視大致呈半 圓弧狀，連接部422係切斷部42 1之端部與端部之間的部 分，形成於中央部41外周的相對位置。此外，開封視認部 4，其連接相對之連接部422的直線以與開封包裝容器i之 方向交叉的方式配置。 其次，對容器本體2進行説明。 123603.doc -10- 200823109 圖3係顯示本實施形態相關之包裝容器的剖面圖。 容器本體2由積層熱封層251、黏合層25 2及基材層253之 多層片體25成型。 於熱封層251，可使用ΡΡ (聚丙烯）、ρΕ (聚乙烯）、pet- G (I對苯二曱酸乙二酯共聚物）、(聚對苯二曱酸丁二 酉旨）專材料。ϋ : From the present & Ming's, the part of the peripheral part of the heat-sealing tooth is in the shape of a pointed shape t'/tJ" This heat (four) is sealed, the pressure is concentrated on the large part of the outer peripheral part: π points of the coffin (4) 'The cover film is partially broken to form a notch. On the other hand, the disk and the container body are sealed by the concave portion to form an unsealing portion. The outer circumference of the heat-sealing tooth has a pointed shape on the entire circumference of the heat-sealing tooth, and the pressure is concentrated on a portion that abuts against the outer peripheral portion, and a notch portion in which the cover material film is thinned is formed along the outer periphery of the opening-closing portion. Therefore, the sealing portion and the notch portion can be formed only by pressing the heat sealing teeth, so that the opening and closing portion can be formed in one step. [Embodiment] Hereinafter, embodiments of the present invention will be described based on the drawings. In the description of the embodiments, the members given the same reference numerals are omitted or simplified. [First Embodiment] Figs. 1A and 1B are schematic views showing a packaging container according to a first embodiment. Fig. 1A is a perspective view showing a packaging container in a sealed state, and Fig. 3(3) is a perspective view showing a packaging container in a partially unsealed state. In FIG. 1A and FIG. 1B, the baggage is smashed, and the sputum is provided. The shackle 1 is provided with a rectangular shape in the plane of the concave portion. In the case of the opening portion 2 i for closing the surface of the central portion of the opening of the opening 21, the third portion is heat-sealed to the flange portion 22 disposed on the periphery of the opening portion 21. The heat seal of the convex portion 22 and the coffin 3 is performed by the sealing portion 23. The flange portion 22 of the damper body 2 has an opening start position 8 〇 @ among the four corners, and an angle is expanded outwardly and protrudes outward from the outer surface of the sealing portion 23 to form the overhang portion 24. In the region from the opening start position S to the outer periphery of the overhanging portion 24, the portion of the winder body 2 and the lid member 3 of the lid member 3 are formed. Fig. 2A is an enlarged view of the periphery of the unsealing viewing portion 4 of the embodiment, and Fig. 2 is a cross-sectional view taken along line B-B of Fig. 2A. The unsealed viewing portion 4 has a circular shape in plan view and is formed substantially at the center of the overhanging portion 24. The central portion 4 located at the center of the opening and closing portion 4 seals the container body 2 and the lid member 3, and a notch portion 42 is formed along the outer periphery of the central portion μ. The notch portion 42 is cut by the cover film. The portion 421 is formed by a connecting portion 422 in which the cover film is not cut, and the cutting portion 421 is formed in a substantially semi-arc shape in plan view, and the connecting portion 422 is a portion between the end portion and the end portion of the cutting portion 42 1 . A relative position formed on the outer circumference of the central portion 41. Further, the unsealing viewing portion 4 is disposed such that a straight line connecting the connecting portion 422 intersects with the direction of the unsealing packaging container i. Next, the container body 2 will be described. 123603.doc -10- 200823109 Fig. 3 is a cross-sectional view showing the packaging container according to the embodiment. The container body 2 is formed of a multilayer sheet body 25 of a laminated heat seal layer 251, an adhesive layer 25 2 and a base material layer 253. As the heat seal layer 251, enamel (polypropylene), ρ (polyethylene), pet-G (ethylene terephthalate copolymer), or (polybutylene terephthalate) can be used.
ί) 於黏合層252使用之黏合材，由自含有包含氫加合物之 笨乙烯嵌段與二烯嵌段之膠質嵌段共聚物、賦予黏合性之 樹脂及塑化劑中選擇之2種以上的成分構成。 含有苯乙烯嵌段與二烯嵌段之膠質嵌段共聚物，亦包含 含有笨乙烯嵌段與二烯嵌段之膠質嵌段共聚物氫加合物。 例如，可列舉出聚笨乙烯嵌段與乙烯基·聚異戊二烯嵌段 結合之嵌段共料勿、以乙稀後段與乙烯-丙㈣段結合 之肷段共聚物、聚苯乙晞嵌段與乙烯丁二烯嵌段結合之 嵌段共聚物、聚苯乙烯嵌段與乙烯-乙烯_丙烯嵌段結合之 嵌段共聚物等。 作為賦予黏合性之樹脂，例如可列舉出氫化松香類樹 月曰萜烯類树月曰、氫化萜烯類樹脂、C5及C6類脂肪族石 油樹脂、脂環族石油樹脂等。 作為塑化劑，例如可列舉出流動石峨、加工油（芳香族 類、環烧類或石翻石油類碳氫化合物）、合成蟻等。 黏合層2 5 2可將膠曾油> 入#又共聚物、黏合賦予劑及塑化劑 等捏合熔融而製造。官Α ώ w 且為自早軸擠壓機之中途注入塑化 123603.doc 200823109 則擠壓機之成本低 ’即可容易地調節 之範圍内，可含有 發泡劑、氧化钛等 若自單軸擠壓機之中途注入塑化劑， 廉，此外，僅藉由改變塑化劑之注入量 接合強度。 除此之外，黏合樹脂層於無損其特性 抗氧化劑、滑石、碳酸鈣等無機填料、 着色劑等。 基材層253係露於容器本體2之外邱 粒之外邛之層，作為構成材料 ηί) The adhesive material used in the adhesive layer 252 is selected from the group consisting of a gel block copolymer containing a hydrogenated ethylene block and a diene block, a resin which imparts adhesiveness, and a plasticizer. The above components are composed. A colloidal block copolymer comprising a styrene block and a diene block, and a colloidal block copolymer hydrogen adduct comprising a stupid ethylene block and a diene block. For example, a block copolymer in which a polystyrene block is combined with a vinyl polyisoprene block, a ruthenium copolymer in which a vinyl group is bonded to an ethylene-propylene (four) segment, and polystyrene can be cited. A block copolymer in which a block is bonded to an ethylene butadiene block, a block copolymer in which a polystyrene block is bonded to an ethylene-ethylene-propylene block, or the like. Examples of the resin to which the adhesiveness is imparted include hydrogenated rosin-based tree decyl sulfonium, hydrogenated terpene-based resin, C5- and C6-based aliphatic petroleum resin, and alicyclic petroleum resin. Examples of the plasticizer include flowing sarcophagus, processing oil (aromatic, cyclized or refractory hydrocarbon), synthetic ants, and the like. The adhesive layer 252 can be produced by kneading and melting a gelatin oil, a copolymer, a binder, and a plasticizer. The official residence ώ w is also injected into the plasticizer 123603.doc 200823109 from the early axis extruder. The cost of the extruder is low. It can be easily adjusted. It can contain foaming agent, titanium oxide, etc. The plasticizer is injected in the middle of the shaft extruder, and the joint strength is merely changed by changing the injection amount of the plasticizer. In addition, the adhesive resin layer does not impair the properties of inorganic fillers such as antioxidants, talc, calcium carbonate, colorants, and the like. The base material layer 253 is exposed to the outer layer of the outer surface of the container body 2 as a constituent material η
可使用聚丙烯類樹脂、聚乙烯類谢t 邱通树爿曰專烯烴類樹脂、ΡΕΊ 等聚酯類樹脂等材料及此等之摻合材料 设口柯枓之早層片體或積層 ^體’此外’為賦予阻氣性，例如可使用ev〇h (乙稀·乙 細醇共聚物）、Ny (尼龍）、pet裳姑+日匕ju* 1艉J 1 4树月曰材料及形成以鋁蒸 鍍等形成之阻氣層的樹脂等。 基材層253於藉由熱成型片體而取得之情形，其構成可 為下列者。除由PP、PE及PET之任—者構成之單層片體之 外，作為組合此等之積層片體，可列舉出pp/Ev〇H/pp、 PET/PE、PET/EVOH/PE 等。 將如此得到之樹脂，以共同擠壓、乾燥層壓、擠壓層 壓、擠麼塗層與此等之組合，可製作由熱封層25ι/黏合^ 252/基材層253所構成之多層片體25。此外，各層之厚 度，藉由樹脂選定及添加比率等，可調節各層的接合2 度0 蓋材3係由複数層構成之積層體，例如可列舉出 PET/Ny/CPP (無延伸聚丙烯）、pET/AL (銘落）/cpp、 PET/Ny/L-LDPE (低密度聚乙烯）、透明蒸鍍pET/L_ I23603.doc -12- 200823109 LDPE、Ny/EVOH/L-LDPE等層構成。 此等積層片體之製造，可以共同擠壓、熱層壓、乾燥層 壓等進行，進而即使為階段式地組合此等亦可進行。 基於圖2A、圖2B及圖3對開封此種構成之包裝容器1的 方法進行説明。圖3係開封包裝容器丨之狀態的剖面圖。 包装容器1，可藉由握持外伸部24之蓋材3，直接向分離 容器本體2與蓋材3之方向拉良而開封。 Ο ϋ 於開封包裝容器1時，於外伸部24形成之開封視認部4之 中央部4i因與容器本體2密封，故不會剝離。另一方面， 因沿中央部41之外周形成有由蓋材薄膜已切斷之切斷部 421與未切斷之連接部422所構成之缺口部42，故於開封 時，僅切斷連接部422即可。 因此，可以開封蓋材3之力容易地沿開封視認部4之外周 切斷。其結果’開封視認部4之中央部41以原有狀態殘留 於容器本體側’於蓋材3形成與中央部叫目同形狀之孔或 變形。 ^ ’則因熱封之強度、各層間 度較弱之密封部23的端部附 於熱封層251與黏合層252之 然後，若進一步開封蓋材3 之接合強度之相對關係，於強 近，熱封層251斷裂。然後， 間產生層間剝離，或黏合層2 5 9介i , 增252亦斷裂而使黏合層252與邊 材層253產生層間剝離，或笋. 又猎由黏合層252内之集中剝離仔 剝離。 由於即使以前述之任一方本 ^ /♦進行剝離，黏合層252都會 露出’故藉由壓合露出之點人 σ層252，可再次密封包裝容 123603.doc -13 - 200823109 器1。 於如此再次密封之包裝容器1的外伸部24，形成為變形 並開孔之狀悲的開封視認部4。 對製造本實施形態之包裝容器1的方法進行説明。 . 圖4係顯示包裝容器1之製造裝置之一部分的概略構成 圖。 於圖4中，包裝容器i之製造裝置5具備有：配置於與凸 緣部22之蓋材3相反之側的模具5 1 ;挾持此模旦5 1之凸緣 部22並於相反側配置之凸緣壓板52 ;及形成收容容器本體 2之内容物之開口部21的栓塞53。 模具51於中央部形成有用以形成容器本體2之開口部21 的凹部5 1A，於此凹部51A<上端邊緣形成有用以形成凸緣 部22之平部51B，於較此平部51B之面更低的位置形成有平 部 51C。 將構成谷器本體2之多層片體25送入至模具51、凸緣壓 (J 板52及栓塞53之間，於此狀態使凸緣壓板52及栓塞53向模 具5 1側移動，藉此於多層片體25 一次成型用以收納内容物 之凹部51A與凸緣部22。 於本實施形態中，藉由進行塞助真空成型、塞助壓空成 型等熱成型，形成沿平部5 1B之形狀的凸緣部22。 此外，於本實施形態中，亦可省略栓塞53與凸緣壓板 2,而以真空成型、壓空成型等形成容器本體2,亦可進行 射出成型。 於射出成型之情形，作為基材層253，可使用PP、pE、 123603.doc -14· 200823109 等射出成型此等之後，進而射出成型黏合層252及熱 封層251 ’可得到容器本體2。 ’後如圖5所示’於收納有内容物P之容器本體2之凸 緣部22的平面部覆蓋蓋材3，並對此等進行熱封。 …、十之強度杈多層片體之熱封層251與黏合層之接合 強度更強，或較基材層253與黏合層252之接合強度更強。 熱封之接合強度’可藉由溫度、壓力、時間等之熱封條 件、各層之厚度、樹脂選擇等調節。 2密封條8自蓋材3上抵接凸緣部22並進行熱封，於熱封 之容器本體2與蓋材3之間形成環狀密封部23。此外，可與 此同時或於下-步驟，使用熱封齒6形成開封視認部4。 此處於圖6顯示熱封齒6之構成。圖6中顯示熱封齒6之 正視圖與底視圖。熱封齒6之按壓面6八於中央形成有凹部 61，亚以包圍凹部61之平面部61B的方式形成有與凹部η 之側面部61A 一體化的外周部62。 再者，於本實施形態中，於外周部62上之相對的2個位 置具有缺口 63。缺口 63之寬度可為無損開封性之任意長 度’例如可分別為1 mm。 外周部62為尖形，其尖形程度可任意決定，例如可相對 於熱封齒6之外壁使側面部61A之傾斜角為60。。此外，外 周部62之距平面部61B的高度可為150 γιη。藉由使熱封齒6 為此種構成，可確實密封開封視認部4之中央部41，同時 於開封視認部4之外周可形成部分斷裂 之缺口部42。 再者’於以此熱封齒6形成開封視認部4時，宜為於連接 123603.doc •15· 200823109 …、封回6之外周部62上相對之缺口 63的線相對於包裝容器1 之開封方向成直角的方向上配置熱封齒6。如此形成之開 封視涊部4更容易斷裂。 此外，因以僅抵接此熱封齒6之一步驟即可形成開封視 -- 5忍部4 ’故可簡單地編入至包裝容器1之製造步驟。例如， 若於形成用以密封容器本體2與蓋材之密封部23之密封條 8，編人此熱封齒6，貝以本實施形態，^時形成密封部 p 23與開封視認部4。 因此，於本實施形態中，可發揮以下之作用效果。 (1)開封視認部4，因部分密封容器本體2與蓋材3，故於 開封包裝容器1時，開封視認部4之蓋材薄膜不剝離。此 外，因沿開封視認部4之外周形成缺口部42，故可容易地 :顧口部42。如此，開封視認部4之蓋材薄膜殘留於容 态本體2 ’於蓋材3形成與開封視認部4之蓋材薄膜相同形 狀的孔或變形。 Ο +因此，於開封包裝容器1後進行再次密封時，可確認於 蓋材3為開孔之狀態，從而可理解係已開封一次者。因對 於-般消費者’可容易地理解開孔之狀態係已開封者，故 成為用以告知係已開封者之有效手段。 ⑺此外’缺口部42,沿開封視認部4之外周形成蓋材薄 膜已切斷之切斷部421與未切斷之連接部422。因切斷部 42 1係平面視大致呈半圓弧狀之形狀’連接部係切斷部 421之端部與端部之間的部分，於開封視認部4之外周的相 對位置形成，故於開封時，僅切斷相對之連接部422即 123603.doc 200823109 :^而，開封視認部之方向，係以連接相對之連接部的 直線與開封包裝容器1之方向交又的方式配置。 若於開封時握持蓋材3並向與容器本體2分離之方向拉 良’則易於向連接部422施力。A polypropylene resin, a polyethylene type, a olefin resin, a polyester resin such as ruthenium, and the like, and a blending material of the same may be used. 'In addition' is to impart gas barrier properties, for example, ev〇h (Ethylene·Ethyl alcohol copolymer), Ny (nylon), pet Sapporo + Japanese 匕ju* 1艉J 1 4 tree 曰 material and formation A resin such as a gas barrier layer formed by aluminum vapor deposition or the like. The base material layer 253 is obtained by thermoforming the sheet body, and the constitution thereof may be the following. In addition to the single-layer sheet composed of any of PP, PE, and PET, as a laminated sheet of such a combination, pp/Ev〇H/pp, PET/PE, PET/EVOH/PE, etc. may be mentioned. . The resin thus obtained can be formed into a multilayer composed of a heat seal layer 25i/adhesive layer 252/substrate layer 253 by co-extrusion, dry lamination, extrusion lamination, extrusion coating, and the like. Sheet 25. Further, the thickness of each layer can be adjusted by the resin selection and the addition ratio, etc., and the bonding of each layer can be adjusted by 2 degrees. The cover material 3 is a laminate composed of a plurality of layers, and examples thereof include PET/Ny/CPP (without extended polypropylene). , pET/AL (inset) / cpp, PET / Ny / L-LDPE (low density polyethylene), transparent evaporation pET / L_ I23603.doc -12- 200823109 LDPE, Ny / EVOH / L-LDPE layer composition . The production of such laminated sheets can be carried out by co-extrusion, heat lamination, dry lamination, etc., and can be carried out even if they are combined in stages. A method of unsealing the packaging container 1 of such a configuration will be described based on Fig. 2A, Fig. 2B and Fig. 3 . Figure 3 is a cross-sectional view showing the state in which the packaging container is opened. The packaging container 1 can be opened by directly holding the lid member 3 of the overhanging portion 24 in the direction of the separation container body 2 and the lid member 3.开 时 When the packaging container 1 is opened, the central portion 4i of the unsealing viewing portion 4 formed in the overhanging portion 24 is sealed from the container body 2, so that it does not peel off. On the other hand, since the notch portion 42 formed by the cutting portion 421 and the uncut connecting portion 422 which are cut by the lid material film is formed along the outer circumference of the center portion 41, only the connecting portion is cut at the time of opening. 422 can be. Therefore, the force of opening the cover member 3 can be easily cut along the outer circumference of the opening and closing portion 4. As a result, the central portion 41 of the unsealing viewing portion 4 remains on the container body side in the original state, and the lid member 3 is formed with a hole or deformation of the same shape as the center portion. ^ 'The end of the sealing portion 23 which is weak due to the strength of the heat sealing and the weaker interlayers is attached to the heat sealing layer 251 and the adhesive layer 252, and then, if the relative strength of the bonding strength of the lid member 3 is further opened, The heat seal layer 251 is broken. Then, interlayer peeling occurs, or the adhesive layer is 205, and the 252 is also broken to cause the adhesive layer 252 and the sap layer 253 to be peeled off, or the bamboo shoots. The hunting is peeled off by the concentrated peeling buds in the adhesive layer 252. Since the adhesive layer 252 is exposed even if it is peeled off by any of the above, the adhesive layer 252 is exposed by pressing, and the package 1 can be sealed again. The overhanging portion 24 of the packaging container 1 thus sealed again is formed into a slit-opening viewing portion 4 which is deformed and opened. A method of manufacturing the packaging container 1 of the present embodiment will be described. Fig. 4 is a schematic configuration view showing a part of a manufacturing apparatus of the packaging container 1. In Fig. 4, the manufacturing apparatus 5 of the packaging container i is provided with a mold 5 1 disposed on the side opposite to the lid member 3 of the flange portion 22, and the flange portion 22 holding the mold 51 is disposed on the opposite side. The flange pressing plate 52; and a plug 53 that forms an opening portion 21 for housing the contents of the container body 2. The mold 51 has a concave portion 51A for forming the opening portion 21 of the container body 2 at the center portion, and the upper end edge of the concave portion 51A < the upper end edge is formed to form the flat portion 51B of the flange portion 22, on the side of the flat portion 51B. The lower portion is formed with a flat portion 51C. The multilayer sheet 25 constituting the trough body 2 is fed to the mold 51 and the flange pressure (between the J plate 52 and the plug 53), and in this state, the flange pressing plate 52 and the plug 53 are moved toward the mold 51 side. The multi-layer sheet 25 is formed in one time for accommodating the concave portion 51A and the flange portion 22 of the contents. In the present embodiment, the flat portion 5 1B is formed by thermoforming such as plug-assisted vacuum forming or plug-assisted pressure forming. In the present embodiment, the plug body 53 and the flange pressure plate 2 may be omitted, and the container body 2 may be formed by vacuum molding, pressure molding, or the like, or injection molding may be performed. In the case where the base material layer 253 is formed by injection molding such as PP, pE, 123603.doc -14·200823109, etc., and then the molded adhesive layer 252 and the heat seal layer 251' are injected, the container body 2 can be obtained. As shown in Fig. 5, the flat portion of the flange portion 22 of the container body 2 in which the contents P is accommodated covers the lid member 3, and is heat-sealed. The ten-strength 杈 multilayer heat-seal layer 251 The bonding strength with the bonding layer is stronger, or the bonding between the substrate layer 253 and the bonding layer 252 The strength of the heat seal can be adjusted by heat sealing conditions such as temperature, pressure, time, thickness of each layer, resin selection, etc. 2 The sealing strip 8 abuts against the flange portion 22 from the lid member 3 and performs Heat sealing, forming an annular sealing portion 23 between the heat sealed container body 2 and the lid member 3. Further, at the same time or in the next step, the sealing member 4 is formed using the heat sealing teeth 6. This is in Fig. 6. The heat-sealing tooth 6 is shown in a front view and a bottom view in Fig. 6. The pressing surface 6 of the heat-sealing tooth 6 is formed with a concave portion 61 at the center to partially surround the flat portion 61B of the concave portion 61. The outer peripheral portion 62 that is integrated with the side surface portion 61A of the recessed portion η is formed. Further, in the present embodiment, the outer peripheral portion 62 has a notch 63 at two opposite positions. The width of the notch 63 may be non-destructive opening. The arbitrary length ' can be, for example, 1 mm. The outer peripheral portion 62 has a pointed shape, and the degree of the pointed shape can be arbitrarily determined. For example, the inclination angle of the side surface portion 61A can be 60 with respect to the outer wall of the heat sealing tooth 6. Further, the outer peripheral portion The height of the plane portion 61B from 62 may be 150 γιη. By heat sealing 6 For this configuration, the central portion 41 of the opening and closing portion 4 can be surely sealed, and a partially broken notch portion 42 can be formed on the outer periphery of the opening and closing portion 4. Further, the opening and closing portion 4 is formed by the heat sealing teeth 6 In this case, it is preferable to arrange the heat-sealing teeth 6 in a direction perpendicular to the unsealing direction of the packaging container 1 at the outer peripheral portion 62 of the sealing portion 6 at the outer corner portion 62 of the sealing portion 63. The opening portion 4 is more likely to be broken. Further, since only one of the steps of the heat-sealing teeth 6 is abutted, the opening-opening--5-bearing portion 4' can be easily incorporated into the manufacturing process of the packaging container 1. For example, if the heat seal teeth 6 are formed by forming the weather strips 6 for sealing the seal portions 23 of the container body 2 and the lid member, the seal portion p 23 and the seal seal portion 4 are formed in the present embodiment. Therefore, in the present embodiment, the following effects can be exhibited. (1) The opening and closing unit 4 partially seals the container body 2 and the lid member 3, so that when the packaging container 1 is unsealed, the cover film of the opening and closing portion 4 is not peeled off. Further, since the notch portion 42 is formed along the outer circumference of the opening and closing portion 4, the mouth portion 42 can be easily used. Thus, the cover film of the unsealing portion 4 remains in the container body 3', and the cover member 3 forms a hole or deformation of the same shape as the cover film of the unsealing portion 4. Ο + Therefore, when the packaging container 1 was opened and sealed again, it was confirmed that the lid member 3 was in an open state, and it was understood that the lid member 3 was opened once. Since it is easy for the consumer to understand that the state of the opening is the opener, it is an effective means for informing the opener. (7) In addition, the notch portion 42 forms a cutting portion 421 in which the lid material film has been cut and a connecting portion 422 which is not cut along the outer circumference of the opening and closing portion 4. The cutting portion 42 1 is formed in a substantially semi-circular shape in a plan view, and a portion between the end portion and the end portion of the connecting portion cutting portion 421 is formed at a position opposite to the outer circumference of the opening and closing portion 4, so that At the time of opening, only the opposing connecting portion 422, that is, 123603.doc 200823109: is cut, and the direction in which the viewing portion is opened is disposed so that the straight line connecting the opposing connecting portions is in the direction of the unsealing packaging container 1. If the lid member 3 is gripped while being opened and pulled in the direction away from the container body 2, it is easy to apply force to the joint portion 422.
因此可以開封包裝容器i之力容易地切斷缺口心卜 ⑺外伸部24’因較凸緣部22之密封㈣的面更低地形 成，故若將包裝容器蹋封一次，則開封視認部4周緣之蓋 材3與容器本體2分離，易於確認開封視認部4之開孔。 (4)用以形成開封視認部4之熱封齒6的形狀，於中央具 有凹部61，並形成包圍凹部61之外周部“。因外周部= /口外周’冑分呈尖形之形狀，故較大之壓力集中於尖形部 分抵接之蓋材薄膜，可沿開封視認部4之外周部分地切斷 蓋材薄膜。 此外，此熱封齒6,可藉由凹部61之平面部6ib確實密封 中央口Ml，同日亇藉由外周部62形成缺口部42之切斷部 421，並藉由缺口 63確實形成缺口部“之連接部心2。 如此，因可以-步驟簡單地形成開封視認部4,故可，， 單地編人製造包裝容器1之步驟中。因此，可容易且廉價 地製造可簡單地進行開封視認並可再次密封的包裝容器。 〔第二實施形態〕 本實施开^ I、係除了開封視認部4之缺口部42的形狀不 同之外，與前述之第一實施形態同様之構成。 圖7A係本實施形態之開封視認部4周緣的放大圖，圖π 係前述圖7A之B-B線剖面圖。 123603.doc -17- 200823109 Λ沿開封視認部4之中央部41的外周形成缺口部42,缺口 :=蓋材薄膜於中央部41之全周成為薄壁狀。因此，、於 开、日守’薄壁狀之缺口部Μ易於斷裂。 、 於形成此種形狀之開封視 使用圖8所不之熱封齒 圖係熱封W之正視圖與底視圖。熱封齒7,係除了敎 封齒6之外周部62的形 ”、、 成。 M j疋外，與熱封齒6同様之構 熱封齒7之按壓面7八’於中央形成有凹部”， 凹㈣之平面部71B的方式形成有與凹部71之側面部Z 一體化的外周部72。 外周部72，於全周整體s ,, n正體呈大形之形狀，若以此熱封齒7 =、’龍力集中於外周部72抵接之部分，蓋材薄膜變 成為㈣狀之缺°部42。另—方面，確實密封平面 部71B所抵接之部分。 若使用此種構成之熱封齒7，則僅進行抵接之-步驟即 可’故可簡單地編入包裝容器1之製造步驟。 因此’可取得前述之第-實施形態的⑴、(3)及以下之 作用効果。 (5)用以形成開封視認部4之熱封齒7的形狀，於中央具 有凹部71，並形成包圍凹部71之外周部72。因外周和於 全^呈尖形之形狀，故較大之壓力集中於尖形部分所抵接 之盖材薄膜’可於開封視認部4之全周將蓋材薄膜形成為 薄壁狀。 因此，藉由熱封齒7,可藉由凹部71之平面部m確實密 123603.doc -18- 200823109 封中央部41，同時藉由外周部72確實形成缺口部42。如 此，因以一步驟即可簡單地形成開封視認部4，故可簡單 地編入製造包裝容器工之步驟中。因此，可容易且廉價地 製造可簡單進行開封視認並可再次密封之包裝容器。 - 再者，本發明並非限於前述之各實施形態，於本發明中 包含於可達成本發明之目的之範圍内的變形、改良等。 例如’於前述各實施形態中’包裝容器】之形狀為平面 (s ㈣形’但並不限於此，亦可為平面視圓形或其他形狀。 ^卜’開封視認部4之㈣、數量及位置並不限於前述 各實施形態。其變形例如圖9A至圖9C所示。除如圖9A所 不之三角形之外，為橢圓形及菱形等，於開封時握持部不 會斷裂之任意形狀即可。 此外，亦可如圖9B所示設置2個開封視認部4。於無損開 封性之範圍内可任意決定。 …、汗 開封視認部4之位置，若係自外伸部24之外周向密封部 C/ 之任忍位置’則可於任意處形成，亦可如圖9B及圄 • 9C之例所示，於密封部23上形成。 ^ 卜於如述各實施形態中，形成開封視認部4之外伸 邛24 ’係較凸緣部22之密封部23的面更低地形成，但外伸 "卩24亦可為與凸緣部22之密封部23的面相同之高度。 此外，於V治·、4_、》 於則达第一實施形態中，開封視認部4之缺口部 42其切斷部421係形成為平面視大致呈半圓弧狀，但若 無扣開封性，則亦可縮短切斷部421之圓弧的長度而形成 為複數虛線狀。於此猜形，配置開封視認部4之方向可任 123603.doc -19- 200823109 意決定。 此外，於前述第二實施形態中，於開封視認部4之全周 形成薄壁狀之缺口部42’但薄壁狀之部分亦可沿開封視認 部4的外周形成為虛線狀。 此外，於前述各實施形態中，於製造步驟中同時密封形 成密封部23與開封視認部4’但亦可於密封密封部23之密 封步驟之後’於其他步驟形成開封視認部4。於此情形， 安裝於密封步驟之後使此熱封齒6下降至外伸部Μ附近之 任意：置的裝置。此裝置，可為與於密封步驟形成密封部 23之密封條8相同者，但因開封視認部4面積狹小，故亦可 編入更小型者或超聲波密封裝置。 此外’於前述各實施形態中’作為可再次密封之包裝容 器，係於容器本體2側設置熱封層251與黏合層252，作亦 可將此等設置於蓋材3側。此情形之蓋材3的層構成，例如 可為熱封層/黏合層/PET、熱封層/黏合層/Ny/pET、熱封層/ 黏合層/CPP/Ny/PET及熱封層/黏合層/CPP/Ny/透明基鑛 PET 等。 此外，於前述各實施形態中，作為於凸緣部22密封蓋材 3之手段係使用熱封’但亦可使用超聲波及接合劑等。 〔實施例〕 其次’舉出實施例對本發明進-步進行詳細説明，但本 發明並不由此等實施例之記述内容而受任何限制。 〔容器本體之製造〕 首先，製造於容器本體使用之片體。片體係由熱封層a/ 123603.doc -20- 200823109 黏合層B/聚烯烴層C構成之3層的多層薄膜。 於熱封層A，使用PRIME POLYMER股份公司製之 PRIME POLYPRO (聚丙烯）Y-2045HP，於聚烯烴層C，使 用PRIME POLYMER股份公司製之PRIME POLYPRO (聚丙 烯）F-704NP。此外，於黏合層B中使用之黏合材，係乾摻 作為含有苯乙烯嵌段與二烯嵌段之膠質共聚物氫加合物之 曰本ΖΕΟΝ製熱塑性彈性物SL-125(比重0.89，MFR = 5g/10min at 230°C，2.16kg) 30wt%，與作為黏合性賦予 樹脂之出光興產製C5-芳香族類共聚物氫加合樹脂I-MARV (氫加合石油樹脂）P-125 (軟化點125°C ，密度1·〇3) 40wt%，自給料斗投入，一邊熔融捏合，同時將使作為抗 氧化劑之 Ciba Specialty Chemicals製 IRGANOX1010於作為 塑化劑之出光興産製加工油DIANA加工油PW-90 (密度 0.8722)中溶解3wt%而得者，以相對於黏合材總量為30wt% 之方式自擠壓機之途中注入擠壓，藉此而得。 以裝備30 mm Φ之單螺桿的各擠壓機擠壓熱封層A及聚 烯烴層C之材料，以裝備40 mm Φ之單螺桿的擠壓機擠壓 黏合層B之材料，於以進料塊積層後，以500 mm寬之T形 模裝置澆鑄成型，製造寬400 mm之具有再次密封功能的3 層多層薄膜。再者，黏合層B之擠壓機係使用於螺桿附有 用以捏合之攪拌頭，可自桶之中間部中途注入油的構造 者。 各層之厚度，熱封層A為5 ，黏合層B為1 5 ym，聚烯 煙層C為30γηι。 123603.doc -21 - 200823109 其-人，為於已製造之3層多層薄膜的聚烯烴層c側，作為 基材層D使聚丙烯積層，而使用聚丙烯薄片τ形模製造裝 置，以接觸輥進行熱層壓成型。所得片體之構成為熱封層 A (5 //m)/黏合層B (15//m)/聚烯烴層c 基材層〇 (450"m) 〇 所得之片體進行一般性之塞助真空壓空成型，以使熱封 層A成為内側面，形成外尺寸15〇 mmxi2〇 、深24 之長方形容器。再者，可熱封之凸緣部的寬度，其4邊均 為 20mm 〇 〔蓋材之密封〕 作為蓋材，使用由聚對苯二甲酸乙二酯（PET，12 ym)/ 尼龍（Ny，15^)/聚丙烯（pp，5〇障)構成之積層薄膜。 於所得之容器本體的凸緣部抵接上述積層薄膜之PP面， 並以’皿度190 C、面壓2 MPa、時間1.5秒之條件，自pet面 抵接熱封齒並進行熱封，藉此接合。 〔開封視認部之密封〕 於將盍材控封於容器本體之後，形成開封視認部。 於開封開始部上抵接熱封齒並進行熱封。 此處使用之熱封齒係剖面形狀為5 mm Φ之於前述第二 實施形態使用的熱封齒（圖8)。以溫度19(rc ，面壓2 MPa、時間1秒之條件自蓋材之ρΕτ面抵接熱封齒。 〔開封視認性之評價〕 妓於開封如上所述而得到之包裝容器I，於容器本體殘留 斷裂為5 mm Φ之開封視認部的蓋材薄膜，並於蓋材形成 123603.doc -22- 200823109 Γ) 了開孔。進而，於再次密封包裝容器時，雖密封了容器， 但開封視認部不與容器接合，可容易地確認開孔之狀態。 【圖式簡單說明】 圖1Α係顯示本發明之[實施形態相關的包裝容器之密 封狀態的立體圖。 圖1B係顯不前述第一實施形態相關之包裝容器之開封狀 態的立體圖。 圖2 A係前述圖丨之主要部分放大圖。 圖2B係前述圖2A之剖面圖。 圖3係前述第一實施形態相關之包裝容 剖面圖。 器之開封狀態的 Ο 圖4係前述第一實施形態相關之包裝容器之製造裝置的 主要部分剖面圖。 圖5係前述第一實施㈣相關之包農容器之製造裝置的 主要部分剖面圖。 圖6係則㈣—實施形態相關之熱封齒的正視圖及底視 圖 圖7 A係本發明之第二實施形態相關之包裝容 分放大圖。 圖7B係前述圖7A之剖面圖。 圖8係刖述第二實施形態相關之熱封齒的正視圖及底視 器的主要部 圖 圖9 A係顯示本發明相關之包裝容器 概略圖 的開封視認部之例的 123603.doc -23 - 200823109 圖9Β係顯示本發明相關之包裝容器的開封視認部之例的 概略圖。 圖9C係顯示本發明相關之包裝容器的開封視認部之例的 概略圖。 【主要元件符號之說明】 1 包裝容器 2 容器本體 3 蓋材 4 開封視認部 5 製造裝置 6 熱封歯 6Α 擠壓面 7 熱封齒 7Α 擠壓面 8 密封條 21 開口部 22 凸緣部 23 密封部 24 外伸部 25 多層片體 41 中央部 42 缺口部 51 模具 51 A 凹部 〇 Ο 123603.doc -24- 200823109 51B 平部 51C 平部 52 凸緣壓板 53 栓塞 61 凹部 61A 側面部 61B 平面部 62 外周部 63 缺口 71 凹部 71A 側面部 71B 平面部 72 外周部 251 熱封層 252 黏合層 253 基材層 421 切斷部 422 連接部 P · 内容物 S 開封開始位置 123603.doc -25-Therefore, the force of opening the packaging container i can be easily cut off. (7) The overhanging portion 24' is formed lower than the surface of the sealing portion (four) of the flange portion 22, so if the packaging container is once sealed, the opening portion 4 is opened. The cover member 3 of the periphery is separated from the container body 2, and it is easy to confirm the opening of the opening and closing portion 4. (4) The shape of the heat-sealing tooth 6 for forming the unsealing viewing portion 4 has a concave portion 61 at the center and is formed to surround the outer peripheral portion of the concave portion 61. The outer peripheral portion = / outer circumference is divided into a pointed shape. Therefore, the larger pressure is concentrated on the cover film which is abutted by the pointed portion, and the cover film can be partially cut along the outer periphery of the unsealing portion 4. Further, the heat-sealing tooth 6 can be covered by the flat portion 6ib of the recess 61. The center port M1 is surely sealed, and the cut portion 421 of the notch portion 42 is formed by the outer peripheral portion 62 on the same day, and the joint portion 2 of the notch portion is surely formed by the notch 63. In this way, since the opening and closing portion 4 can be easily formed in steps, the step of manufacturing the packaging container 1 can be performed by a single person. Therefore, it is possible to easily and inexpensively manufacture a packaging container which can be easily opened and resealed. [Second Embodiment] This embodiment is the same as the first embodiment described above except that the shape of the notch portion 42 of the opening and closing portion 4 is different. Fig. 7A is an enlarged view of the periphery of the unsealing viewing portion 4 of the embodiment, and Fig. π is a cross-sectional view taken along line B-B of Fig. 7A. 123603.doc -17- 200823109 The notch portion 42 is formed along the outer periphery of the central portion 41 of the opening and closing portion 4, and the notch: = the cover film film is thin in the entire circumference of the central portion 41. Therefore, the thin-walled notch is easy to break. The opening of the shape is shown in Fig. 8. The heat sealing of Fig. 8 is a front view and a bottom view of the heat sealing W. The heat sealing teeth 7 are formed by the shape of the peripheral portion 62 other than the damper teeth 6, and the pressing surface 7 of the heat sealing teeth 7 which is the same as the heat sealing teeth 6 is formed with a concave portion at the center. The outer peripheral portion 72 that is integrated with the side surface portion Z of the concave portion 71 is formed in a manner of a concave portion (four) flat portion 71B. The outer peripheral portion 72 has a large shape in the entire entire circumference s, and the n positive body has a large shape. If the heat sealing teeth 7 =, 'the dragon force concentrates on the portion where the outer peripheral portion 72 abuts, the cover material film becomes a (four) shape. ° portion 42. On the other hand, it is true that the portion where the flat portion 71B abuts is sealed. When the heat-sealing teeth 7 of such a configuration are used, only the step of abutting can be performed, so that the manufacturing process of the packaging container 1 can be easily incorporated. Therefore, the effects of (1), (3) and the following in the above-described first embodiment can be obtained. (5) The shape of the heat seal teeth 7 for forming the unsealing viewing portion 4 has a concave portion 71 at the center and a peripheral portion 72 surrounding the concave portion 71. Since the outer circumference and the shape of the whole shape are pointed, the larger pressure is concentrated on the cover film which is abutted by the pointed portion, and the cover film can be formed into a thin wall over the entire circumference of the unsealing portion 4. Therefore, by thermally sealing the teeth 7, the central portion 41 can be sealed by the flat portion m of the concave portion 71, and the notch portion 42 can be surely formed by the outer peripheral portion 72. Thus, since the unsealing viewing portion 4 can be easily formed in one step, it can be easily incorporated into the steps of manufacturing the packaging container. Therefore, it is possible to easily and inexpensively manufacture a packaging container which can be easily opened and re-sealed. Further, the present invention is not limited to the above-described respective embodiments, and modifications, improvements, etc., which are within the scope of the object of the invention, are included in the present invention. For example, the shape of the 'packaging container' in the above embodiments is a flat surface (s (four) shape', but is not limited thereto, and may be a circular shape or other shape in a plan view. ^B' (4), the number of the opening and closing portion 4 The position is not limited to the above-described respective embodiments, and the modification thereof is as shown in, for example, FIGS. 9A to 9C. In addition to the triangle as shown in FIG. 9A, it is an elliptical shape, a rhombus shape, or the like, and the grip portion does not break in any shape at the time of opening. Further, as shown in Fig. 9B, two unsealing viewing portions 4 may be provided, which may be arbitrarily determined within the range of non-destructive opening. ..., the position of the sweat-opening viewing portion 4, if it is from the outer periphery of the overhanging portion 24 The position of the sealing portion C/ can be formed at any position, or can be formed on the sealing portion 23 as shown in Figs. 9B and 9C. ^ In each embodiment, the opening is formed. The extension 24' of the viewing portion 4 is formed lower than the surface of the sealing portion 23 of the flange portion 22, but the overhanging "24" may be the same height as the surface of the sealing portion 23 of the flange portion 22. In addition, in the first embodiment of the V treatment, 4_, and Yu Zeda, the lack of the Kaifeng visual recognition unit 4 The cutting portion 421 of the portion 42 is formed in a substantially semi-arc shape in plan view. However, if the opening portion is not opened, the length of the arc of the cutting portion 421 can be shortened to form a plurality of broken lines. The direction in which the opening and closing portion 4 is disposed may be determined as 123603.doc -19-200823109. Further, in the second embodiment, the thin-walled notch portion 42' is formed on the entire circumference of the unsealing viewing portion 4, but the thin wall is thin. The portion of the shape may be formed in a dotted line along the outer circumference of the unsealing viewing portion 4. Further, in the above embodiments, the sealing portion 23 and the unsealing viewing portion 4' may be simultaneously sealed in the manufacturing step, but the sealing portion 23 may be sealed. After the sealing step, the opening seal portion 4 is formed in other steps. In this case, the heat sealing tooth 6 is mounted after the sealing step to any device in the vicinity of the overhanging portion 。. This device can be used with The sealing step is the same as the sealing strip 8 of the sealing portion 23. However, since the opening of the opening portion 4 is narrow, it can be incorporated into a smaller one or an ultrasonic sealing device. Further, 'in the foregoing embodiments, 'as a resealable package The heat seal layer 251 and the adhesive layer 252 are disposed on the side of the container body 2, and may be disposed on the side of the cover member 3. In this case, the layer structure of the cover material 3 may be, for example, a heat seal layer/adhesive layer. /PET, heat seal layer / adhesive layer / Ny / pET, heat seal layer / adhesive layer / CPP / Ny / PET and heat seal layer / adhesive layer / CPP / Ny / transparent base PET, etc. In addition, in the foregoing implementation In the embodiment, the means for sealing the lid member 3 to the flange portion 22 is heat-sealed, but ultrasonic waves, a bonding agent, or the like may be used. [Embodiment] Next, the present invention will be described in detail with reference to examples. The present invention is not limited to the contents described in the examples. [Production of Container Body] First, a sheet body used in a container body is manufactured. The sheet system consists of a three-layer multilayer film composed of a heat seal layer a/123603.doc -20-200823109 adhesive layer B/polyolefin layer C. PRIME POLYPRO (polypropylene) Y-2045HP manufactured by PRIME POLYMER Co., Ltd., and PRIME POLYPRO (polypropylene) F-704NP manufactured by PRIME POLYMER Co., Ltd. were used for the heat seal layer A. In addition, the adhesive material used in the adhesive layer B is dry-blended as a thermoplastic elastomer SL-125 (specific gravity 0.89, MFR) containing a colloidal copolymer hydrogen adduct of a styrene block and a diene block. = 5g/10min at 230°C, 2.16kg) 30wt%, and C5-aromatic copolymer hydrogen addition resin I-MARV (hydrogen addition petroleum resin) P-125, which is produced as a binder resin. (softening point: 125 ° C, density: 1 〇 3) 40 wt%, which is melt-kneaded while being fed from a hopper, and at the same time, IRGANOX 1010 manufactured by Ciba Specialty Chemicals as an antioxidant is used as a plasticizer for the production of DIANA processing oil. The PW-90 (density 0.8722) was dissolved in an amount of 3 wt%, and was extruded from the extruder in a manner of 30 wt% based on the total amount of the binder. Extruding the material of heat seal layer A and polyolefin layer C with each extruder equipped with a single screw of 30 mm Φ, and extruding the material of adhesive layer B with a 40 mm Φ single screw extruder. After the blocks were laminated, they were cast in a 500 mm wide T-die apparatus to produce a three-layer multilayer film having a resealing function of 400 mm in width. Further, the extruder of the adhesive layer B is used in a structure in which a screw is attached to the screw for kneading, and the oil can be injected from the middle portion of the barrel. The thickness of each layer is 5 for the heat seal layer A, 15 μm for the adhesive layer B, and 30 ηηι for the polyolefin layer C. 123603.doc -21 - 200823109 It is a human being, which is a polyolefin layer c side of a three-layer multilayer film which has been manufactured, and a polypropylene layer is laminated as a base material layer D, and a polypropylene sheet τ-die manufacturing apparatus is used to contact The rolls are hot laminated. The obtained sheet is composed of a heat seal layer A (5 // m) / an adhesive layer B (15 / / m) / polyolefin layer c substrate layer 450 (450 " m) 〇 obtained by a general plug Vacuum vacuum forming is performed so that the heat seal layer A becomes an inner side surface, and a rectangular container having an outer size of 15 mm mm 2 and a depth of 24 is formed. Furthermore, the width of the heat-sealable flange portion is 20 mm 4 [sealing of the cover material] as a cover material, using polyethylene terephthalate (PET, 12 ym) / nylon (Ny , 15^) / polypropylene (pp, 5 barrier) composed of laminated film. The flange portion of the obtained container body abuts against the PP surface of the laminated film, and is heat-sealed from the pet surface under the condition of a dish size of 190 C, a surface pressure of 2 MPa, and a time of 1.5 seconds. Thereby engaging. [Seal of the opening and closing section] After the coffin is sealed to the container body, the opening and closing section is formed. The heat-sealing teeth are abutted on the opening portion of the opening and heat-sealed. The heat seal tooth profile used here is 5 mm Φ which is the heat seal tooth used in the second embodiment (Fig. 8). The temperature is 19 (rc, the surface pressure is 2 MPa, and the time is 1 second. The heat-sealing tooth is abutted from the surface of the lid material. [Evaluation of the visibility of the opening] The packaging container I obtained in the above-mentioned opening is in the container. The residual residue of the body is 5 mm Φ, and the cover film of the opening part is opened, and the opening is formed in the cover material 123603.doc -22-200823109 Γ). Further, when the packaging container is sealed again, the container is sealed, but the opening-closing portion is not joined to the container, and the state of the opening can be easily confirmed. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a sealed state of a packaging container according to an embodiment of the present invention. Fig. 1B is a perspective view showing the unsealed state of the packaging container according to the first embodiment. Fig. 2A is an enlarged view of a main part of the aforementioned figure. Fig. 2B is a cross-sectional view of the aforementioned Fig. 2A. Fig. 3 is a sectional view showing the packaging capacity of the first embodiment. Fig. 4 is a cross-sectional view showing the main part of the manufacturing apparatus of the packaging container according to the first embodiment. Fig. 5 is a cross-sectional view showing the main part of a manufacturing apparatus for a cannon container according to the first embodiment (d). Fig. 6 is a front view and a bottom view of the heat sealing teeth of the embodiment. Fig. 7A is an enlarged view of the packaging capacity according to the second embodiment of the present invention. Fig. 7B is a cross-sectional view of the aforementioned Fig. 7A. Fig. 8 is a front elevational view showing the heat sealing teeth according to the second embodiment and a main portion of the bottom view. Fig. 9A shows an example of the opening and closing portion of the outline of the packaging container according to the present invention. 123603.doc-23 - 200823109 Fig. 9 is a schematic view showing an example of the opening and closing portion of the packaging container according to the present invention. Fig. 9C is a schematic view showing an example of the unsealing viewing portion of the packaging container according to the present invention. [Description of main component symbols] 1 Packaging container 2 Container main body 3 Cover material 4 Unsealing viewing section 5 Manufacturing apparatus 6 Heat sealing 歯 6 Α Extrusion surface 7 Heat sealing teeth 7 挤压 Extrusion surface 8 Sealing strip 21 Opening portion 22 Flange portion 23 Sealing portion 24 Outer portion 25 Multi-layer sheet 41 Center portion 42 Notch portion 51 Mold 51 A Concavity 〇Ο 123603.doc -24- 200823109 51B Flat portion 51C Flat portion 52 Flange platen 53 Plug 61 Recessed portion 61A Side portion 61B Flat portion 62 outer peripheral portion 63 notch 71 concave portion 71A side surface portion 71B flat portion 72 outer peripheral portion 251 heat seal layer 252 adhesive layer 253 base material layer 421 cut portion 422 joint portion P · contents S unsealing start position 123603.doc -25-