OBoBb A6 B6 五、發明説明（1 本發明之背景 1 .本發明之範圍 本發明傜關於自在熱下，可熔合及可收缩之包裹之塑 膠薄膜，製造收縮包裝件之方法，且僳特別關於一種收缩 包裝件製造方法，其中，在熱收縮方法期間，可將空氣自 包裝件中，良好抽出且，於完成熱收缩方法時，可以保持 包裝件氣密。本發明亦係關於經由此方法所産生之包裝件 請- 先 閲 讀 背· 意 事 項 再 塡 寫 本 頁’ 裝 2.有關技藝之敘述 截至目前為止，當將一値物件，以手工或經由自動包 裝機，予以包裹以一片熱收縮之塑膠薄膜時，包裹在包裝 件中之物件上之塑膠膜具有許多空氣逸出之孔，全部或部 份，如圔5 (a)與5 (b)中所示，在熱收縮方法以前 ，在此方法中，將存在於包裝件中之空氣，經由各孔予以 抽出，並在同時，將塑膠膜收縮而密切黏附至物件的整個 表面，於是，塑膠膜的各孔，經自衛性觀點，經由附著一 個標籤或類似者至薄膜表面上予以封閉。 然而，傳统式方法需要附加之步驟，例如：先前形成 孔在薄膜上，及在熱收縮過程後，附著標籤至包裝件，因 此增加製造成本。另外，經由傳統式方法所造成之包裝件 具有缺點，因為：接近逸出空氣之孔之標籤易於被剝離， 以致容許灰塵、昆蟲、細_，經由各孔，自所剝離之部分 衣纸張尺度適用中國國家標準（CNS)甲4規格（210 X 297公分） 訂 經濟部中央標準局员工消費合作社印製 81.9.25.000 A6 B6 CQGO^43_ 五、發明説明（2 ) ,滲入包裝件中，因此，造成外觀及衛生等問題。 太發明之槪酩 因此，本發明的一個目的在提供一種收缩包裝件製造 方法，其中，在熱收縮方法期間，可以將空氣經由空氣逸 出孔予以抽出，而無任何問題且其中，可以將空氣逸出孔 ，在熱收縮方法终了時，予以自動封閉。 本發明的另外目的在提供一種收縮包裝件，在其表面 中，没有空氣逸出孔，它不僅呈現優良之外觀，而且防止 任何有容之東西，自外部滲透入包裝件中。 根據本發明之第一觀點，提供有製造封閉式收縮包裝 件的方法，包括下列步驟：使用在熱下，可熔合及可收縮 之塑膠薄膜，來包裹物件；在接鄰物件之至少一面且之經 預測定交錯封閉點上，封閉塑膠薄膜；沿著接鄰經預定之 交錯封閉點及在其外部之一條預測定線，切割該塑膠膜及 然後，經由一種熱收縮方法來處理塑膠薄膜。 根據本發明之第二觀點，提供有封閉式收縮包裝件； 係使用一片塑膠薄膜，包裹物件，在接郯物件之至少一面 上之各交錯封閉點上予以封閉並熱力收縮。 為了經由包裝機器，製造此種收縮包裝件，首先，將 自塑膠薄膜锟所拉伸之兩重薄膜的前端，施加在成形器之 前端上，並強制入成形器的入口。然後，將該兩重薄膜， 在成形器以内，予以反向開啓；當將薄膜的相對面邊緣， 在輸送帶下被嵌入時，使兩片之薄膜，沿著一封閉密條的 本紙張尺度通用中S园家標準（CNS)甲4規格（210 X 297公犛） -4 - 81.9.25,000 A6 B6 (〇8bB〇 五、發明説明（3 ) 上部表面，在相對面邊緣之每一者上相對準。保持此種姿 態，將兩重膜之前端更進一步拉伸，直至前薄膜端，自成 形器之前端，在封閉單元下通過。 以此方式，在薄膜組中，摺叠線延伸成為等邊三角形 之垂直線，而因此，位於成形器寬度之中央。在同時，將 薄膜，沿著成形器入口之對角線邊緣，向前彎曲呈與它之 穩定嚙合，以便防止薄膜之等邊三角形變形，而因此，防 止薄膜被斜著展開，因此，維持薄膜的適當開口姿勢。 現在，當啓動包裝機時，位於成形器之上游面上之供 應帶上之前端物件被移動在延伸入並通過成形器之輸送帶 上。當傳動輸送帶時，經撝帶在輸送帶上之物件，進入經 由成形器開啓之管形薄膜並在薄膜中，繼缠向前移動。當 物件通過輸送帶時，經開啓兩重薄膜，則以向前方向，被 累進式封閉，因為相對之側邊緣，經由縱向之封閉單元予 以各自熔合。 然後，當物件通過一横向封閉單元時，該横向封閉單 元及一具切割機開始作用，而在同時，位置接鄰且在與它 相平行之横向封閉單元的熔合構件下游之一具點封閉單元 ，亦開始作用來熔合以間隔而横向通過之薄膜。 經由横向封閉單元及點封閉單元等之作用，含有先前 物件之薄膜則沿著接鄰於物件之上游终端之横向線型条列 的封閉點予以封閉，而在同時，將薄膜，經由横向封閉單 元之切割機，接鄰於且在封閉點条列的上游邊上，予以横 向切割。同時，在切割機的上游邊上，含有後繼物件之薄 請 先 閲 η 脅 面 之 事 項 再 填 寫 本 頁’ 裝 訂 經濟部中央標準局MK工消費合作社印製 本紙張尺度適用中國國家橒準（CNS)甲4規格（210 X 297公犛）_ 5 - 81.9.25,000 A6 __B6 _ 五、發明説明（4 ) 膜的前端則被完全封閉，因為經由橫向封閉單元之熔合構 件予以熔合。 因此，當薄膜通過横向封閉單元及點封閉單元時，因 此，所産生之包裝件的薄膜，則在一値终端上予以完金封 閉，因為連缠熔合，同時，薄膜在接鄰物件之另外终端之 各點上予以封閉。 然後，將包裝件輸送入一個熱隧道中，於其中，當薄 膜内部之空氣，經由點封閉之區域的未封閉部份予以抽出 時，使薄膜在熱下收縮而緊密黏附至包裝件之整痼表面上 。在此時，薄膜的點封閉之區域，經由熱收縮方法予以收 縮，以致將未經封閉之部份在熱收縮過程的最後階段，予 以封閉，因此，有效防止任何有害事物，例如：灰塵，滲 透入包裝件中。 圖式之簡單敘述 圖1是根據本發明之典型具體實施例，使用雙重薄膜 之自動包裝機器的裂解透視圖； 圔2是包裝機之主要部份的放大側視圔； 圖3是包裝機的點封閉單元之典型封閉桿的裂解放大 透視圖；如自熔合表面所見； 圖4 (a)與4 (b)是示意之透視圖，每圖顯示： 熱收縮過程前之包裝件，主要顯示：包裝件的點封閉部份 ;及 圔5 (a)及5 (b)是透視圔，每一者顯示：-根據 6 - 請先閲4背面之注意事項再埸寫本ί —裝· 訂. 經濟部中央標準局βα工消費合作杜印製 本纸張尺度通用中國國家標準（C\’s)甲4規格（210 X 297公贷） 81.9.25,000 A6 A6 經濟部中央標準局員工消费合作社印製 五、發明説明（5 ) 傳統技藝之收縮包裝件。 詳細敘述 適合於製造根據本發明之收縮包裝件的一具自動包裝 機，現在參照附隨圔式予以敘述。圖1是典型自動包裝機 的裂解透視圖，其中，使用雙重薄膜；圖2是包裝機主要 部份的放大側視圖；而圖3是包裝機的點封閉桿之透視圖 ,如自熔合表面所見。 在圖1至3中，參考數字1指示：使用一片雙重薄膜 之自動包裝機。包裝機1包括：一具薄膜供應單元10, 一個倒轉薄膜之開口 20, —個物件支持單元30, —値 L形封閉器4◦,一個包裝件卸出單元50以及一具未經 舉例說明之熱隧道。 在薄膜供應單元1 0中，將一値支持锟1 3支持在未 經舉例説明之機器框架上，並水平支持一個薄膜捲11包 括：一片雙重薄膜1 2,偽被捲在例如：一個紙管上；及 一具導锟14,被支持在支持棍13與倒轉膜之開口 20 問之機器框架上。當它自薄膜捲1 1予以拉伸時，雙重薄 膜，經由導锟1 4而到達倒轉薄膜之開口 2 0。 倒轉薄膜之開口20,俗由予以水平固定在框架上之 一對通常等邊直角三角形板2 1, 2 1 (具有經預測定之 空間在其中間）以如此方式予以聯合界定；因此使，界定 直角之兩等邊之一，21—1， 21—1，是底邊及其他 邊21—2, 21_2面對導锟14,(具有適當空間在 (請先閱請背面之注意事項再塡寫本頁) —裝· 訂· 衣纸張尺度適用中國國家標準（CSNS)甲4規格（210 X 297公騖） 81.9.25,000 r A6 _B6_ 五、發明説明（6 ) 其中間）。兩重薄膜12之分開部份，每一者沿著對角線 邊2 1 — 3, 2 1 — 3予以向内彎曲。它對各自三角形板 2 1的直角，以便具有一通常C形截面。然後，使經如此 彎曲之薄膜12轉動約90° ,並以與欲披包裝之物件2 的輸送方向之相同方向予以供應。 如圔1中所示，物件供應單元3 0可包括經水平配置 之一値供應台，而一個终端部份突入倒轉薄膜之開口20 ,及一條輸送帶，自供應台的前端延伸至L —形封閉器 40之封閉部份。該輸送帶，以與L形封閉器40的作用 呈定時關係，予以間斷式傳動。物件供應單元3 0可能是 一種交替式輸送設備，例如：一條鐽，一具棍式輸送器或 一個滑動台。 L形封閉器4 0包括：一個線型形封閉部份，用以經 由熔合而封閉膜12之下游終端及用以沿著經封閉之終端 部份的橫向線下游，來切割薄膜1 2，及一値點封閉部份 ，用以在上文所述及之封閉部份的下游之交錯封閉點上， 熔合薄膜1 2。 特別，在所舉例說明之具體實施例中，L形封閉器 4 ◦具有一對的垂直相間隔之長方形框41, 41,適應 於經由倒.轉薄膜之開口 2 0予以倒轉之雙重薄膜1 2的各 自向上及向下予以配置及水平予以輸送。將一個L 一形封 閉部份4 2設置在每一個的兩長方形框架4 1 , 4 1的框 架構件41 一 1, 41 一 1的面對表面上。在此具體實施 例中，可將上部及下部框架構件4 la, 4 lb予以垂直 81.9.25,000 衣紙張尺度適用中國因家標準（CNS)甲4規格（210 X 297公犛）_ 8 _ Μ Α6 Β6 經濟部中央標準局8工消費合作社印製 五、發明説明（7 ) 調整。 如圖2與3中所示，雖然L—形封閉部份42具有一 種所熟知之基本構造，但是它具有特殊構造，以便獲得本 發明之包裝件。以上部框架構件4 1 a薄膜流動方向而延 伸之側框架41-2具有以與傳統式相同方式而延伸之未 經舉例說明之熔合桿，而上部橫向框架構件41-1具有 以薄膜流動方向而延伸之一對的熔合捍42—1, 42-2，被放置在熔合桿42 — 1, 42 - 3間者，是具有切 割薄膜之刀片的切割機42_3。 上游熔合桿42—1和切割機42—3具有與傳統式 構造之相同構造，並連合構成具有一値連續熔合表面之線 型封閉部份。而下游邊熔合捍（在下文中，稱為 ''點封閉 捍〃）42—2則具有本發明之獨特構造並構成點封閉之 部份。 圔3顯示：具有適合於實行本方法之一種構造的下游 邊點封閉桿42-2;該點封閉桿42—2具有交錯之挖 去部份42_2a在熔合表面中。當它經由該點封閉桿 42—2予以熔合時，薄膜12即在交錯之封閉點PSI 予以封閉，如圖4中所示。 闊於此構造，因為L-形封閉部份42作用在雙重薄 膜12上，所以熔合桿42—1連續熔合薄膜12之上游 邊，且在同時，切割機42-3切去薄膜12之下游邊。 同時，切割端之下游，薄膜12經由點封閉桿42 — 2在 各交錯點上予以封閉。 (請先閲請背面之注意事項再瑣寫本頁) 丨裝. 訂 ^紙張尺度適用中國國家標準（CNS)甲4規格（210 X 297公贷）_ 9 81.9.25,000 〇〇b^° A6 B6 經濟部中央標準局β工消費合作杜印製 五、發明説明（8 ) 將包裝件卸出單元50 (其形成為卸出帶式輸送機） ,放置在L形封閉器40之下游，如傳統式。一個未經舉 例說明之熱隧道位在包裝件卸出單元5◦之中央部份上。 當將它在卸出帶式輸送機51上予以轉移並正被卸出 時，具有經封閉但未收縮之薄膜12之包裝件302通過 未經舉例說明之熱隧道，於該處，薄膜12在熱下予以收 縮並黏附至物件3之整個表面上。在此時，因為薄膜12 内部之空氣，經由點封閉區域PS的未經封閉之部份而逸 出，薄膜12之收縮可予以實施而無任何問題。另外，在 此項終端收縮過程期間，薄膜12傜在所有方向，予以甚 大收縮，直至點封閉區域P S密切黏附至物件3之表面， 以便經封閉之部份，接近面對之未經封閉部份。在熱收縮 過程後，所得之包裝件採取一種實際上，完全封閉之姿態 0 雖然包裝件之薄膜在各圖式中，被顯示呈未經收縮之 狀態，但呈此狀態之包裝件，傺經由封閉單元而通過熱隧 道。在熱隧道内部，薄膜在熱下予0收縮而黏附至物件上 ，以致該點封閉區域PS,顯然可能是一値僅單一之連缠 密封，因此有效地防止了任何有容事物，例如灰塵之滲入 ，而灰塵能造成衛生問題。 在所舉例說明之具體實施例中，使用「日本實用模型 公告No. SH0 60—20567中所掲示之包裝機 器。然而，本發明決不應受限制為此種特殊形式，舉例而 言，它可能是一種垂直型包裝機器，它自薄膜捲，經.由導 請 先 閱 讀 背 意 事 項 再 埸 寫 本 頁一 裝 訂 衣紙張尺度適用中國國家標準（CMS)甲4規格(210 X 297公贷）一 一 81.9.25,000 A6 B6 絰濟部中央標準局®:工消費合作社印一衣 五、發明説明（9 ) 锟而向下垂直拉伸雙重薄膜，不須倒轉；將物件因其經由 一種適當設備予以開口之部份而嵌入雙重薄膜中，另外經 由物件之重量而拉伸該薄膜，及經由熔化，利用一具L形 封閉器來切割此膜。在另外之更迭形式中，它可能是該型 的一種包裝機器，此機器，在一具成形器中，反向開啓雙 重薄膜，使該膜之相對倒邊緣，沿著封閉物窄條之上部表 面相對準，附以被嵌入輸送帶下，及以此狀態拉伸該薄膜 直至其前終端，自成形器之前端，通過一具封閉之單元下 面。當然，本發明之方法可以手工予以進行。 有如自前述之敘述顯然可見，根據本發明之方法，因 為熱收縮過程係在將包裝件的未經收縮薄膜的一終端部份 ，在各交錯之封閉點予以封閉後才進行，所以膜内部之空 氣，在熱收縮過程期間，自點封閉區域的未經封閉部份而 逸出，以致可使薄膜收縮而無任何困難。另外，於完成熱 收縮過程時，點封閉區域披完全堵住，係由於當未經封閉 之部份，經由其面對之經封閉部份予以封閉時，薄膜之收 縮。因此，與傳統或方法相比較，本發明的方法，在作業 上，顯著簡單，且自經濟之觀點，尤其有用。 因為没有空氣逸出之孔在完成之包裝件的表面中，它 有優良之外觀及採取完全封閉之狀況，以致除非薄膜破裂 ，防止了任何有害之事物，例如灰塵之滲透入包裝件中（ 灰塵等可能造成衛生問題）。 (請先閲讀背面之注意事項再填寫本頁) •—裝. 訂. —線· 本纸張尺度適用中因國家標準（CNS)甲4规格（210 X 297公贷）_ 81.9.25,000OBoBb A6 B6 V. Description of the invention (1 Background of the invention 1. The scope of the invention The present invention relates to a method of manufacturing shrinkable packaged plastic film that can be fused and shrunk under free heat, and particularly relates to a A method of manufacturing shrink-wraps, wherein during the heat-shrinking method, air can be well drawn out of the package and, when the heat-shrinking method is completed, the package can be kept airtight. The invention also relates to the production by this method For packaging, please-read the back first, and then write this page. Pack 2. Relevant technical descriptions Up to now, when a piece of objects is wrapped by hand or by an automatic packaging machine, a piece of heat-shrinkable plastic When the film is wrapped, the plastic film on the object wrapped in the package has many holes for air escape, all or part, as shown in Figures 5 (a) and 5 (b). Before the heat shrink method, here In the method, the air present in the package is extracted through each hole, and at the same time, the plastic film is contracted to adhere closely to the entire surface of the object, so the plastic film Each hole is closed by attaching a label or the like to the surface of the film from the viewpoint of self-defense. However, the conventional method requires additional steps, such as: forming a hole in the film previously, and attaching the label after the heat shrinking process To the package, which increases the manufacturing cost. In addition, the package caused by the traditional method has disadvantages because the label close to the hole that escapes the air is easily peeled off, so that dust, insects, and fines are allowed to pass through the holes, Part of the clothing paper stripped from the standard of China National Standards (CNS) A 4 specifications (210 X 297 cm). Printed by the Ministry of Economic Affairs Central Standards Bureau Employee Consumer Cooperative Printing 81.9.25.000 A6 B6 CQGO ^ 43_ V. Description of invention (2 ), Infiltrating into the package, therefore, causing problems such as appearance and hygiene. So too the invention of an invention, therefore, an object of the present invention is to provide a method of manufacturing shrink packaging, wherein, during the heat shrink method, air can be passed through the air The escape hole is drawn out without any problems and among them, the air can be escaped from the hole, at the end of the heat shrinking method, It is automatically closed. Another object of the present invention is to provide a shrink-wrapped package with no air escape holes in its surface, which not only presents an excellent appearance, but also prevents any content from penetrating into the package from the outside. According to the first aspect of the present invention, there is provided a method for manufacturing a closed shrink package, including the following steps: using heat, a plastic film that can be fused and shrinkable to wrap the object; on at least one side of the adjacent object and the The plastic film is sealed on the predicted interlaced closed points; along a predicted alignment line adjacent to the predetermined interlaced closed points and on the outside thereof, the plastic film is cut and then the plastic film is processed through a heat shrinking method. The second aspect of the present invention provides a closed shrink package; a piece of plastic film is used to wrap the object, which is closed and thermally contracted at each staggered closure point on at least one side of the tandem object. In order to manufacture such a shrink package through a packaging machine, first, the front end of the two-fold film stretched from the plastic film roller is applied to the front end of the former and forced into the entrance of the former. Then, the two-layer film is opened reversely inside the former; when the edges of the opposite sides of the film are embedded under the conveyor belt, the two sheets of film are along the paper size of a closed strip General Chinese S Garden Standard (CNS) Grade 4 specifications (210 X 297 male yak) -4-81.9.25,000 A6 B6 (〇8bB〇 V. Invention description (3) Upper surface, on each of the opposite edges Relatively accurate. Maintain this posture and stretch the front end of the double film further until the front film end passes from the front end of the former under the closed unit. In this way, in the film group, the folding line extends into The vertical line of the equilateral triangle, and therefore, is located in the center of the width of the former. At the same time, the film is bent forward along the diagonal edge of the entrance of the former to be in stable engagement with it, so as to prevent the equilateral of the film The triangle is deformed, and therefore, the film is prevented from being slanted, so the proper opening posture of the film is maintained. Now, when the packaging machine is started, the front-end object on the supply belt on the upstream side of the former is moved to extend And pass through the conveyor belt of the former. When driving the conveyor belt, the objects on the conveyor belt through the belt enter the tubular film opened by the former and move forward in the film. When the object passes through the conveyor belt At the time, when the double film is opened, it is closed progressively in the forward direction, because the opposite side edges are fused separately through the longitudinal closing unit. Then, when the object passes through a horizontal closing unit, the horizontal closing unit and A cutting machine starts to function, and at the same time, a point-closed unit located adjacent to and downstream of the fusing member of the horizontally closed unit parallel to it also starts to function to fuse the film passing at intervals in the transverse direction. The function of the closing unit and point closing unit, etc., the film containing the previous object is closed along the closing points of the horizontal linear line adjacent to the upstream terminal of the object, and at the same time, the film is passed through the cutting machine of the horizontal closing unit , Adjacent to and on the upstream side of the closed dots, cut horizontally. At the same time, on the upstream side of the cutting machine, after Please follow the η threatening section before filling in the thin part of the article, then fill out this page. ”This book is printed by the MK Industrial and Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. _ 5-81.9.25,000 A6 __B6 _ V. Description of the invention (4) The front end of the membrane is completely closed because it is fused through the fusion member of the horizontal closing unit. Therefore, when the film passes through the horizontal closing unit and the point closing unit, therefore , The film of the produced package is completely closed at one terminal, because it is fused and fused, and at the same time, the film is closed at each point of the other terminal adjacent to the object. Then, the package is transported into a In the hot tunnel, when the air inside the film is drawn through the unclosed part of the point-closed area, the film shrinks under heat and adheres tightly to the packaged surface of the package. At this time, the area where the dots of the film are closed is shrunk by the heat shrinking method, so that the unsealed part is closed at the final stage of the heat shrinking process, therefore, effectively preventing any harmful things, such as: dust, penetration Into the package. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an automatic packaging machine using double films according to an exemplary embodiment of the present invention; FIG. 2 is an enlarged side view of the main part of the packaging machine; FIG. 3 is a view of the packaging machine A cracked enlarged perspective view of a typical closed rod of a point-closed unit; as seen from the fusion surface; Figures 4 (a) and 4 (b) are schematic perspective views, each of which shows: the package before the heat shrinking process, which mainly shows: The dotted closed part of the package; and 5 (a) and 5 (b) are perspective, each of which shows:-According to 6-Please read the precautions on the back of 4 first before writing this book-Pack · Order. Economy Printed by the Ministry of Central Standards Administration βα Industrial and Consumer Cooperation Co., Ltd. Paper Standard General Chinese National Standard (C \ 's) A 4 specifications (210 X 297 public loan) 81.9.25,000 A6 A6 Printed by the Employees Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (5) Shrink packaging of traditional skills. Detailed description An automatic packaging machine suitable for manufacturing shrink-wrap parts according to the present invention will now be described with reference to the accompanying siege. Figure 1 is a cracked perspective view of a typical automatic packaging machine, in which a double film is used; Figure 2 is an enlarged side view of the main part of the packaging machine; and Figure 3 is a perspective view of the point closing rod of the packaging machine, as seen from the fusion surface . In Figs. 1 to 3, reference numeral 1 indicates: an automatic packaging machine using a double film. The packaging machine 1 includes: a film supply unit 10, an opening 20 for inverting the film, an object support unit 30, an L-shaped closing device 4, a package unloading unit 50, and an unillustrated Hot tunnel. In the film supply unit 10, a value support roller 1 3 is supported on a machine frame not illustrated, and horizontally supports a film roll 11 including: a double film 12 and a pseudo-rolled in, for example, a paper tube Upper; and a guide roller 14, supported on the machine frame of the support rod 13 and the opening 20 of the inverted film. When it is stretched from the film roll 11, the double film passes through the guide roller 14 to the opening 20 of the inverted film. The opening 20 of the inverted film is commonly defined by a pair of generally equilateral right-angled triangular plates 2 1, 2 1 (with a predicted space in between) in this way; therefore, the right angle is defined One of the two equal sides, 21-1, 21-1, is the bottom edge and the other sides 21-2, 21_2 face the guide roller 14, (with appropriate space in (please read the precautions on the back first and then write the book Page)-The size of the paper for binding, ordering, and clothing is in accordance with the Chinese National Standard (CSNS) Grade A (210 X 297 male) 81.9.25,000 r A6 _B6_ V. Description of the invention (6) in the middle). The separated portions of the two films 12 are each bent inwardly along the diagonal sides 2 1-3, 2 1-3. It is at right angles to the respective triangular plate 21 so as to have a generally C-shaped cross-section. Then, the film 12 thus bent is rotated by about 90 °, and is supplied in the same direction as the conveying direction of the article 2 to be wrapped. As shown in Fig. 1, the object supply unit 30 may include a horizontal supply table, and a terminal portion protruding into the opening 20 of the inverted film, and a conveyor belt extending from the front end of the supply table to the L-shape The enclosed portion of the obturator 40. The conveyor belt is intermittently driven in a timing relationship with the function of the L-shaped sealer 40. The object supply unit 30 may be an alternate conveying device, for example: a lump, a stick conveyor or a sliding table. The L-shaped closing device 40 includes: a linear closing portion for closing the downstream terminal of the film 12 by fusion and for cutting the film 12 downstream along the transverse line of the closed terminal portion, and a The point closed portion is used to fuse the film 12 at the intersecting closed point downstream of the closed portion mentioned above. In particular, in the illustrated specific embodiment, the L-shaped closure 4 has a pair of vertically spaced rectangular frames 41, 41, which are adapted to the double film 1 2 which is inverted through the opening 20 of the inverted film Each is configured upward and downward and delivered horizontally. An L-shaped closed portion 4 2 is provided on the facing surface of each of the two rectangular frames 4 1, 4 1 frame members 41-1, 41-1. In this specific embodiment, the upper and lower frame members 4 la, 4 lb can be vertically 81.9.25,000. The size of the paper is applicable to the Chinese In-House Standard (CNS) A 4 specifications (210 X 297 male yak) _ 8 _ Μ Α6 Β6 Printed by the Central Bureau of Standards of the Ministry of Economic Affairs and Industry and Consumer Cooperatives V. Invention Instructions (7) Adjustment. As shown in FIGS. 2 and 3, although the L-shaped closed portion 42 has a well-known basic structure, it has a special structure in order to obtain the package of the present invention. The upper frame member 4 1 a has a side frame 41-2 extending in the film flow direction and has an unillustrated fusion rod extending in the same manner as the conventional one, while the upper lateral frame member 41-1 has a film flow direction and An extended pair of fusion guards 42-1, 42-2, placed between the fusion rods 42-1, 42-3, is a cutting machine 42_3 with a blade for cutting film. The upstream fusion rod 42-1 and the cutter 42-3 have the same structure as the conventional one, and join together to form a linear closed portion having a continuous fusion surface. The downstream fusion welding (hereinafter referred to as "point closure protection") 42-2 has the unique structure of the present invention and constitutes a part of point closure. Fig. 3 shows: a downstream edge point closing rod 42-2 having a configuration suitable for carrying out the method; the point closing rod 42-2 has staggered cut-out portions 42_2a in the fusion surface. When it is fused through the closing rod 42-2 at this point, the film 12 is closed at the intersecting closing point PSI, as shown in FIG. Wider than this structure, because the L-shaped closed portion 42 acts on the double film 12, the fusion rod 42-1 continuously fuses the upstream side of the film 12, and at the same time, the cutter 42-3 cuts the downstream side of the film 12 . At the same time, downstream of the cutting end, the film 12 is closed at each staggered point via a point closing rod 42-2. (Please read the precautions on the back before writing this page) 丨 Package. Order ^ Paper size is applicable to China National Standard (CNS) A 4 specifications (210 X 297 public loan) _ 9 81.9.25,000 〇〇b ^ ° A6 B6 Printed by β-consumer cooperation of the Central Standards Bureau of the Ministry of Economic Affairs. 5. Description of the invention (8) The package discharge unit 50 (which is formed as a discharge belt conveyor) is placed downstream of the L-shaped sealer 40, such as Traditional. An unillustrated thermal tunnel is located in the central part of the package discharge unit 5◦. When it is transferred on the unloading belt conveyor 51 and is being unloaded, the package 302 with the closed but unshrinked film 12 passes through the unillustrated thermal tunnel where the film 12 is It shrinks and adheres to the entire surface of the object 3 under heat. At this time, since the air inside the film 12 escapes through the unclosed portion of the dot-enclosed area PS, the contraction of the film 12 can be carried out without any problem. In addition, during this terminal shrinking process, the film 12 傜 is greatly shrunk in all directions until the point enclosed area PS is closely adhered to the surface of the object 3, so that the closed part is close to the unclosed part facing . After the heat shrinking process, the resulting package adopts a practically completely closed posture. 0 Although the film of the package is shown in the unshrinked state in each drawing, the package in this state passes through Close the unit and pass through the thermal tunnel. Inside the hot tunnel, the film shrinks under heat and adheres to the object, so that the closed area PS is obviously a single entangled seal, thus effectively preventing any content, such as dust Infiltration, and dust can cause hygiene problems. In the specific embodiment illustrated, the packaging machine shown in "Japanese Practical Model Bulletin No. SH0 60-20567" is used. However, the present invention should by no means be limited to this particular form, for example, it may It is a vertical packaging machine, it is from the film roll, and the guide. Please read the backing notes first and then write this page. The size of the bookbinding paper is applicable to the Chinese National Standard (CMS) A 4 specifications (210 X 297 public loan). 1. 81.9.25,000 A6 B6 Central Standards Bureau of the Ministry of Economy and Economy: Printed a garment by the industrial and consumer cooperative. V. Description of invention (9) The double film is stretched vertically downward without reversal; the object is passed through an appropriate device. The part of the opening is embedded in the double film, in addition, the film is stretched by the weight of the object, and by melting, the film is cut with an L-shaped closure. In other alternative forms, it may be of the type A packaging machine in which a double film is opened in reverse in a former, so that the opposite edge of the film is aligned along the upper surface of the narrow strip of the closure, and is embedded Under the conveyor belt, and in this state, the film is stretched to its front end, from the front end of the former, through a closed unit. Of course, the method of the present invention can be carried out manually. As is obvious from the foregoing description, According to the method of the present invention, because the heat shrinking process is carried out after closing the terminal part of the unshrinkable film of the package at the intersecting sealing points, the air inside the film during the heat shrinking process, It escapes from the unclosed part of the point-enclosed area, so that the film can shrink without any difficulty. In addition, when the heat shrinking process is completed, the point-enclosed area is completely blocked because the unsealed part The film shrinks when it is closed by the closed part it faces. Therefore, compared with the traditional or method, the method of the present invention is significantly simpler in operation and is particularly useful from the economic point of view. Because there is no The air escape hole is in the surface of the finished package. It has an excellent appearance and is completely closed, so that unless the film is broken, prevent Any harmful things, such as the penetration of dust into the package (dust may cause hygiene problems). (Please read the precautions on the back before filling out this page) • —Pack. Order.—Line · This paper size is applicable China National Standard (CNS) Grade A 4 (210 X 297 public loan) _ 81.9.25,000