200944366 六、發明說明： 【發明所屬之技術領域】 本揭示内容係關於用於包裝由呈包裝層壓板形式之指展 撓性材料（例如薄板或腹板材料）形成之容器之包穿技術 更特疋而吕，本揭示内容係關於一種用於此等包裝办琴 包裝層壓板及一種製造此一包裝層壓板之方法。 【先前技術】 體食品（例如湯）通 包裝容器用來在運 常200944366 VI. Description of the Invention: [Technical Field of the Invention] The present disclosure relates to a technique for wrapping a container formed from a flexible material (for example, a sheet or web material) in the form of a packaging laminate. The present disclosure relates to a packaging laminate for such packaging and a method of making the packaging laminate. [Prior Art] Body foods (such as soups) are used in packaging containers for regular use.
液體食品（例如牛奶及酸奶）以及半液 以小容積消費者包裝容器形式出售。 送及搬運期間之整個價值鏈過程中保護食品。除保護產品 以外，容器還可攜帶關於其内容之資訊且亦用作一顯示表 面以向消費者推銷產品。 已知諸多不同類型之消眷者句护它哭 只凋買有a裝谷器，例如塑膠瓶、玻 璃瓶及由基於紙的包裝層壓板形成之容器。成本及環境影 響可影響對包裝容器之選擇。Liquid foods (such as milk and yogurt) and half liquids are sold in small volume consumer packaging containers. Protect food during the entire value chain during delivery and handling. In addition to protecting the product, the container may carry information about its contents and also serve as a display surface to market the product to the consumer. It is known that many different types of consumers are crying. They only buy a barn, such as plastic bottles, glass bottles, and containers formed from paper-based packaging laminates. Cost and environmental impact can affect the choice of packaging container.
-對用於液體或半液體食品之包裝容器之常見選擇係一 由一基於紙的包裝層壓板形成之容器。此—容器製作成本 低廉、具有低環境影響且可堆疊以便有效運送及搬運。 當前包裝容器係由一基於紙的包裝層壓板形成，其中一 或夕個障壁材料層（例如一聚合物塗層 紙纖維芯由一 或金屬膜）包裹，從而產生一包裝層壓板。障壁材料用來 保護芯材免受所盛納產品侵害且亦保護產品免受環繞包裝 容器之氣體及濕氣侵害。在製作此—容器日f，摺疊並隨後 膠合及/或焊接包裝層壓板以形成容器。此係一高速過 138518.doc 200944366 程，其通常結合容器之填充來實施。為了使得更容易在正 確位置中摺疊包裝層壓板，藉由添加一條或多條摺痕線來 製備包裝層壓板。藉由讓紙芯在受控壓力下從兩個或兩個 以上對置摺痕輥之間穿過來創建一摺痕線。摺痕親具有大 :線性凸出部及’或凹入部。對置輥之周邊表面彼此非常 罪近，且一個輥之一凸出部對應於另一個輥中之一匹配凹 入部，從而為其中間的紙芯留出一定餘地。 田則包裝容器之所得包裝容器之垂直拐角邊緣之摺痕線 (其自容器基座朝容器頂部延伸）經定向以使凹入部形成於 所要成為包I容器之外表面中，從而使得容易在正確位 置中摺疊彼等拐角邊緣且因此使拐角邊緣朝包裝容器之中 心向内「隆起」。 通常，幾個包裝容器同時在一專用負荷載體（例如一滾 籠\上自I填單元運送至一銷冑點。當將容器佈置於一 負荷載體上時，其通常在彼此頂上堆疊呈—規則、基於層 案谷器因此應較佳係足夠剛性的以允許以該方式堆 疊幾層填充包裝容器。 種降低包裝容器之成本環境影響之方式係減少用於製 作其之材料量，且減少材料量而不降低容器容積之最直接 式係減小材料之厚度。然而，減小容器材料之厚度可能 亦減小其剛度及因此其可堆疊性。 因此具有尤其與在堆疊容器期間出現之負荷相關之 維持之剛度及降低之材料使用量之包裝容器將係有利的。 注意，此目標亦涵蓋-具有增大之剛度及維持之材料使用 138518.doc 200944366 量之包裝容器。 在形成包裝期間’包裝層壓板可承受大的應力。特定而 言，摺疊包裝層壓板可在材料中產生應力。因芯層之剛 度’故位於摺痕之「外側」上之與摺疊相關之熱塑性層承 受伸長變形（亦即，拉伸應力），而位於摺痕之「内側」上 之與摺疊相關之熱塑性層被壓在一起且通常沿該摺痕線起 皺摺。通常，皺摺集中至層壓板中存在之任何摺痕線並由 層壓板中存在之任何摺痕線引導。由於熱塑性材料之大可 延伸性，故摺疊僅很少導致外側塑膠層中呈裂痕形式之損 壞。然而，在一些情況下，當包裝層壓板包括一鋁箔時， 可存在該箔因其低可延伸性而趨於裂痕之兇險。 Ο 在由一由一包裝層壓腹板形成之管形成例如平行六面體 包裝期間，用一產品填充並沿密封區橫向密封該管，該等 區彼此隔開一定距離定位，以形成個別包裝，經由在該密 封區中切削來將該等包裝與該管分離開。然而，朝包裝之 底表面摺疊位於包裝之底端中之密封翼片，該翼片且有— 對應於兩個包裝層壓板之厚度之厚度。接下來，朝包裝之 底表面摺疊形成於包裝之側處之三角形側摺翼，該等側摺 翼亦具有-雙材料厚度。此意謂存在與其他摺痕線相 摺痕線，亦即，百先在_第__摺痕㈣近摺 與第一㈣線相交H痕線㈣再讀 板。在指痕之間的相交處中，部分材料因在其附近γ壓 料之大的總材料厚度而承受大的拉伸應力及/或； 敏摺（其在材料中形成一增厚或隆起）在摺線中之 138518.doc 200944366 指痕線處之存在進一步增大位於摺痕之「外側」上之層壓 板之外層中之伸長變形。 -種減輕拉伸應力之方式係使第一摺痕明顯且清晰，以 ^第摺疊(其形成於第一摺疊上方)不在位於第二摺疊之 'J」上之包裝層壓板之外層中產生任何不必要的伸長 變形:文獻eP-A1_0 027 668揭示一種包裝層壓板，其適於 =先沿一第—摺線且隨後沿一與第一摺線相交之第二摺線 摺疊’其中藉由減少指線處之皺指量來使第-摺痕明顯。 裝層壓板/0第一及第二相交摺線具有指痕線。在指線之❹ 門的相父處中，此等摺痕線呈斷續的且沿第一摺線之第一 摺痕線由兩個設置於損線之兩側上且與其大致平行之輔助 ft痕線取代。在摺疊之後’摺線延伸於該等輔助摺痕線之 門而不與其重合。因此，形成於摺痕之「内側」上之皺摺 集中至辅助摺痕線而不集中至摺線。由此，第一摺痕將更 月顯且擬在其附近形成第二摺痕之材料厚度變小。因此， 減小第二摺痕之「外侧」上之包裝層壓板之伸長變形。 然而，已發現，在一些情況下，例如對於一些類型之層 ❹ 壓板、層壓板厚度或包裝容積，EP-A1-0 027 668中所揭示 之輔助牦痕可能不令人完全滿意。舉例而言，一些包裝層 ， 壓板不適於摺疊具有一明顯第一摺痕。 【發明内容】 — 本發明旨在提供一種滿足上述標準之新穎包裝容器，換 句居5兑，一種具有一增大之剛度與材料使用量之比之容 器。 1385I8.doc -6 - 200944366 此目的已藉由一種包裝層壓板及一種製作此一包裝層壓 板之方法達成。 該包裝層壓板包括一紙芯或紙板且具有一形成一包裝容 器之外側之第一側及一形成該包裝容器之内側之第二侧且 該材料通常稱作包裝層壓板。此外，該材料具有界定可在 •形成該等包裝容器期間使用之摺疊位置之摺痕線。每一條 摺痕線界定一位於該材料之一側上之線性凸出部及一位於 該材料之對置側上之對應線性凹入部。該包裝層壓板之特 Ο 徵在於形成該包裝容器之一拐角邊緣之至少一條摺痕線具 有其位於該包裝層壓板之該第一側上之線性凸出部。 用於製作該包裝層壓板之該方法包括： 藉助使用兩個或兩個以上共同界定一條或多條摺痕線之 一圖案之對應摺痕輥來將該包裝層壓板壓印帶有一條或多 條摺痕線，每一條摺痕線界定一線性凸出部及一對應線性 凹入部。該方法之特徵在於定位用於形成該包裝容器之一 . 拐角邊緣之該一條或多條摺痕線中之至少一者具有位於該 包裝層壓板之該第一側上之該線性凸出部。 本發明摺痕帶來若干優點，所有該等優點皆源自在使用 * 本發明時更容易摺疊該包裝容器之事實。由於更容易摺 . 叠’因此該摺痕線不必如此深，且因此對該包裝層壓板之 強度及硬度之影響未受同樣大的影響。根據先前技術方 法，摺痕線必須如此深以致存在一在摺痕時沿摺痕線切削 材料之風險。此產生一就摺痕壓力而言窄的製作窗口。當 使用本發明時’可減輕摺痕壓力，從而產生一加寬的製作 138518.doc 200944366 窗口、對摺痕板（佈置於該等摺痕輥上之板）之更小磨損、 及因此一更經濟之產生。由於使用本發明更容易摺疊該包 裝容器，因此促進對該包裝容器之最終摺疊（其係在填充 該包裝容器之後實施）並可提高製作速度。 本發明之另一態樣亦係提供一種具有摺痕線之包裝層壓 板，該等摺痕線佈置用於降低出現在彼此相交之摺線處之 層壓板中之裂痕之風險。 此態樣已藉由一種包裝層壓板達成，該包裝層壓板包括 適於在其附近摺疊該包裝層壓板以形成一包裝之第一及第 二相交摺線，該層壓板適於首先沿該第一摺線並隨後沿該 第二摺線摺疊’該層壓板進一步包括分別沿該第一及第二 摺線之對應第一及第二摺痕線，該等摺痕線適於促進對該 包裝之摺疊，其中該第二摺痕線具有一位於一其中該第一 及第二指線相交之區域中之沿該第二損線之中斷或一末 端’該中斷或末端具有輔助摺痕線，該等辅助摺痕線與該 第二摺線大致平行，且該第一摺痕線具有一適於容置該等 輔助摺痕線之中斷或末端。以此方式，沿該第一摺痕之摺 疊係以一不防止在該摺線處出現皺摺之習用方式進行，而 沿該第二摺線之該第二摺疊係以一以一均勻方式分散應力 並減少形成於該摺線處之皺摺之平穩方式進行，該等皺指 將在該摺疊之「外側」處之該包裝層壓板之該等外層中引 起增大之伸長變形。因此，在該包裝層壓板之該等外層中 出現裂痕之風險得到降低。藉由以兩條輔助摺痕線來取代 該第二摺痕線之一部分，該第二摺痕可更容易且更溫和地 138518.doc 200944366 遵循該第一摺痕。該組態可例如用於對明顯摺痕敏感之包 裝層壓板，且因此可用作先前已知摺痕線组態之一替代形 式。此等輔助摺痕線包括一位於該包裝層壓板之第一側上 之線性凹入部。與所述先前技術相比，本發明之一顯著效 . 應在於該等輔助摺痕線提供一每次看起來基本相同之可預 見摺痕，而該先前技術方法係更隨機的。據信情況就是這 •樣，此乃因該先前技術方法旨在將該包裝層壓板分層以 冑各層可獨立地摺疊’且由此避免張力，且因此裂痕，而 本發明提供適當界定之指痕線，沿該等摺痕線將形成一摺 痕。 在本發明之一較佳實施例中，其中提供該等辅助摺痕線 且〃中該第與第一摺線相交之該區域係由該第一摺痕線 中之該中斷之該等終點或該終點與該第二摺痕線中之該中 斷中之該等終點或該終點界定。該等辅助摺痕線可見效係 在該等摺痕線之該中斷之該區域或該末端中。若該等輔助 藝摺痕線與其他摺痕線重合，則該材料趨於太軟化且無法達 成一對該等摺線之令人滿意的引導。 較佳地，該等輔助摺痕線設置於該第二摺線之兩側上且 與其隔開此一距離，以致在摺疊該包裝層壓板之後該第二 摺線延伸於該等辅助摺痕線之間而不與其重合。該等輔助 摺痕線與該摺線之間的一太短距離可導致該包裝層壓板之 軟化從而不賦予該摺線一在該兩條輔助摺痕線之間的空間 中令人滿意的引導。以此方式，可避免在摺疊時該摺線將 轉而由該等輔助摺痕線引導且趨於遵循該兩者中之任何一 138518.doc 200944366 者。 有利地，該第二摺痕線之任—終點或若干終點與最靠近 其之該等相應輔助摺痕線之終點之間的距離係如此以致在 摺疊該包裝層壓板之後該第二摺線延伸於該等輔助摺痕線 之間而不與其重合。以此方式，可避免在指疊時該摺線將 轉而趨於遵循該等辅助指痕線中之任何一者。如前面所提 及，一太短之距離可導致該包裝層壓板之軟化從而不賦予 該摺線一令人滿意的引導。 在另一較佳實施列中，該等輔助摺痕線相互平行且相對 於該第二摺線對稱定位。由此，形成於該等指痕線附近之 該等皺摺更均勻地分散於該摺線之兩侧上，即該兩側將 形成為大致相等。 如所較佳地提及’㈣摺痕線中之大致全部皆自在形成 該包裝之後作為該包裝之内側之該包裝層壓板之側形成。 已顯不以此方式形成該等摺痕線對於—些 板、層壓板厚度或例如包裝容積而言特別有利。匕裝層屋 在：-較：實施例中，一第三摺痕線沿—第 有-位於-區域中之中…… 亥第二摺痕線具 附近㈣該包裝層壓板時與該等輔助指痕線重合，兮第； 線與該第二及第三摺線大致平行佈置且與該第 線隔開大致相等距齙山 第一摺 層壓板之-個區域中。=該敵摺形成適當引導於該包裝 -區域重合之另—區域/不需要進一步在摺叠時與該第 °°域中引導該皱摺形成。通常，較佳讓 138518.doc 200944366 彼區域中之包裝層壓板平穩地遵循該第一區域以降低該包 裝層壓板之不必要的伸長變形之風險。 本發明亦係關於一種包裝，其由包括在其附近摺疊該包 裝層壓板以形成該裝置之第一及第二相交摺線之包裝層壓 板製成’摺痕首先沿該第一摺線並隨後沿該第二摺線提 供’該包裝進一步包括分別沿該第一及第二摺線之對應第 一及第二摺痕線，該等摺痕線適於促進對該包裝之摺疊， 其中該第二摺痕線具有一位於一其中該第一與第二摺線相 交之區域中之沿該第二摺線之中斷或一末端，該中斷可末 端具有辅助摺痕線，該等輔助摺痕線與該第二摺線大致平 行且由一位於該包裝層壓板之該第一侧上之線性凹入部界 定，從而形成該包裝容器之内侧。該第一摺痕線具有一適 於谷置S玄等輔助摺痕線之中斷或末端。以此方式，沿該第 一摺線之摺疊係以一不防止該摺線處出現皺摺之習用方式 進行，而沿該第二摺線之摺疊係以一以一均勻方式分散應 力並減少形成於該摺線處之皺摺之平穩方式進行，該等皺 摺將在该包裝之該摺痕之「外側」處之包裝層壓板之外層 中引起增大之伸長變形。因此，在該包裝層壓板之該等外 層中出現裂痕之風險得到降低。藉由用兩條輔助摺痕線來 取代該第二摺痕線之一部分，該第二摺痕可更容易且更溫 和地遵循該第-摺痕。該組態可例如用於形成對明顯摺痕 敏感之包裝層壓板之包裝。較佳地’該包裝可根據該包裝 層壓板之申請專利範圍附屬項中所界定之特徵形成。 【實施方式】 138518.doc •11- 200944366 參照圖1，根據一個實施例之本發明方法係在一摺痕 機，更確切的說，在—轉換機之一摺痕單元2中實施，其 中紙芯壓印、具有摺痕線並具有障壁材料，從而形成一包 裝層壓板4。在該摺痕單元中，該紙從兩個對置摺痕輥（一 具有右干凸出部之第—輥6及一具有若干凹入部之第二輥 8)之間穿過。該等凹入部及凸出部配準，從而在包裝層壓 板4上形成對應之凸出部1〇及凹入部12，參見圖？。摺痕輥 6、8通常係由金屬製成，但應瞭解，其亦可由其他材料製 成，只要其耐受來自摺痕作業之應力，且具有必要之耐久 性。 ❹ 根據本發明之一第—實施例，一包裝層壓板4提供用於 形成包裝容器。該包裝層壓板包括一紙或紙板之芯14且具 有個或多個障壁材料層，例如一層壓聚合膜及/或金屬 膜。該等障壁材料用來保護芯材14免受所纟納產品侵害且 亦保4產品免受環繞該包裝容器之氣體及液體侵害。該包 裝層壓板具有一形成一包裝容器之外側之第一側16及一形 成該包裝容器之外侧之第二側18。包裝層壓板4亦可係滿 ◎ 足對忒包裝容器之要求之任一類型之可摺疊材料或材料結 «任何層壓障壁材料皆通常在指痕之後施加。一通用程 序係將一聚乙烯（PE)膜層壓至紙芯14之一側或兩侧上。若 金屬泊用作另一障壁材料，則此可在摺痕之後佈置。— ， PE層用作一黏合劑以將該金屬络「膠合」至該芯材，且通 常兩層PE層壓於邊金屬箔之頂上，以充當障壁材料且在密 封該包裝容器時使用。 138518.doc •12- 200944366 當製作一平行六面體包裝容器時，摺疊並隨後膠合或焊 接包裝層壓板4以形成一容器。此係一高速製程，其通常 結合容器之填充實施。摺痕線20經佈置以使得更容易在正 確位置中摺叠包裝層壓板4。 根據本發明之第一實施例，該一個或多條摺痕線2〇中之 一者或多者經形成以便在摺疊時該一或多條摺痕線20之幾 何形狀遵循所對應摺痕邊緣之自然彎曲曲線。特別地，這 樣形成包裝容器之拐角邊緣22之摺痕線20(參見圖3)。此意 謂大致避免了包裝層壓板4之第二（内）側18沿該一個或多個 拐角邊緣22摺痕線之變形，此乃因凸出部1〇及凹入部12係 在拐角邊緣22之方向上。對於一垂直拐角邊緣22而言，此 意謂該一或多條摺痕線20中之該一個或多個凹入部12形成 於所要成為包裝容器之内表面中。當如此佈置拐角邊緣 摺痕線20中之一者或多者時，可達成一更剛性容器且因此 可使用一比一使用先前技術摺痕線之容器所需更小厚度、 因此更環保的包裝層壓板4。 令人驚訝的是，本發明促成包裝之一增大剛度。原因可 能在於減少對來自紙芯2之塗層之分層。原因亦可能在於 相對於先前技術方法芯2中之紙纖維受形成摺痕線之本發 明方式影響較小。圖4A及B比較根據本發明之内側摺痕之 實際實例（圖4A)與根據先前技術之一般摺痕（圖4B)之照 片。為了提高清晰度，已對照片進行數位強化。在這兩個 只例中使用相同之包裝層壓板。由該等圖片易知，外側拐 角在具有内側摺痕的圖而言更加清晰，而帶有—般摺痕之 13S518.doc -13· 200944366 包裝層壓板則顯示一具有兩個彎摺之拐角。此外，當彎曲 包裝層壓板時，内層（面向包裝容器之内側之層）之長度保 持不變，此意謂其非要起摺或起皺摺不可。對於内側摺 痕將推動内層以形成一朝肖&裝層壓板之芯之隆起，從 而壓縮其，且按理將使其更具剛性。此應與其中將推動内 層以形成一遠離包裝層壓板之芯之隆起之外側摺痕之情形 相比較。因此，如由圖4B顯而易見，構成芯之纖維之間的 接合將受到負面影響，從而導致包裝層壓板將不太具剛 性。 圖5示意性地顯示一整個地由圖中之參考編號ιι〇表示之 包裝層壓板之-部分。包裝層壓板UG可包括—纖維材料 (例如（舉例來說）紙或紙板）芯層，該纖維材料芯層具有若 干聚合物（較佳一熱塑性材料）外層。此外，包裝層壓板ιι〇 亦"T 括額外層，例如一金屬箱（舉例來說紹箱）氣體障壁 層。 L裝層壓板110包括一第一摺線A及一適於在其附近摺叠 該包裝層壓板以形成一包裝112之第二摺線B1，參見圖6及 7。如在圖5中可見，第一與第二摺線a、B1彼此相交。該 專推線僅係幾何線且由虛線標記。此外，為了促進形成包 裝112，層壓板11〇包括分別沿第一及第二摺線A、B1之對 應第一及第二摺痕線114、116。使用摺痕線來促進摺疊包 裝係常見的且將摺痕線製造至層壓板上係使用習用技術進 行’其將不進行進一步闡述。 沿第二摺線B1，第二摺痕線丨丨6具有一中斷或末端丨8 ^ 138518.doc • 14- 200944366 該中斷或末端m位於其中第—與第二指線A、B1相交之 區域中。該區域在圖5中被標記為一矩形。在中斷或末端 118處，摺痕線116由二輔助摺痕線12〇取代。該等輔助摺 痕線m與第二摺線B1A致平行且由形成包裝ιΐ2之内側之 包裝層壓板之侧上之一線性凹入部界定。此外，第一摺痕 '線A具有一適於容置該等輔助摺痕線12〇之中斷122或末 .端。換句話說，中斷122或末端位於其中第一與第二摺線 A、B1相交之區域中.如由圖5所見，第一摺痕線114係經 ❹ t斷’亦即，其在容置該等輔助摺痕線12()之相交區域之 後繼續，而第二摺痕線116則終止於該相交區域處。其中 具有輔助摺痕線120且第一與第二摺線A、則相交之相交 區域係由第一摺痕線114中之中斷122之終點（亦即，中斷 U2自其開始之摺痕線之末端）與第二摺痕線ιΐ6之末端ιΐ8 刀界。在一較佳實施例中，輔助摺痕線120不設置於所標 «己矩形之外側，亦即，輔助摺痕線丨2〇不設置成其與第一 _ 摺痕線114相交或設置成其與第二摺痕線116重疊。較佳 地，輔助摺痕線12〇設置於第二摺線扪之兩側上且與其隔 開此距離，以致在摺疊包裝層壓板1 1 〇之後第二摺線B i ， 延伸於該等輔助摺痕線120之間而不與其重合。此外，第 .二摺痕線116之終點118與最靠近其之相應辅助摺痕線12〇 之終點之間的縱向距離係如此以致在摺疊包裝層壓板1 1 0 之後第一指線B1延伸於該等辅助摺痕線之間而不與其 重合。所謂縱向距離意指沿第二摺線B丨定向之距離。 輔助摺痕線120相互平行且相對於第二摺線b〗對稱定 138518.doc -15- 200944366 位。如由圖5顯而易見，第二摺痕線116之終點118與最靠 近其之每一相應輔助摺痕線120之終點之間的距離大小約 與該兩條辅助摺痕線120之間的距離相同。此外，辅助摺 痕線120之寬度或厚度大於第一及第二摺痕線丨丨斗、ιΐ6之 寬度。此外，輔助摺痕線12 〇之間的距離較佳大於自輔助 摺痕線120至第一摺痕線114之中斷122之終點之距離。此 外，輔助摺線線120之長度大致小於或等於摺痕線116之中 斷。在所示實例中，除摺痕線Π6之一末端118以外不存在 任何中斷且輔助摺痕線120之長度大小約為自摺痕線ιΐ6之 末端118至包裝層壓板11〇之最近橫向邊緣之距離之長度的 二分之一。另外，摺痕線116之末端118與最靠近之每一相 應輔助摺痕線120之終點之間的距離大小約與上述包裝層 壓板邊緣與最靠近該邊緣定位之辅助摺痕線終點之距離相 同。然而，大約所有該等距離皆取決於例如包裝層壓板 110之品質及厚度、包裝112之容積等等。 此外，該包裝層壓板包括一沿一第三摺線幻之第三摺痕 線124。該第三摺線C1與第二摺線⑴大致平行。第三摺痕 線124具有一位於一區域中之中斷或末端126，該區域適於 在一第四線D附近摺疊包裝層壓板11〇時與輔助摺痕線以^ 重合，第四線D1與第二及第三摺線B1&C1大致平行佈置 且與第二及第三摺線B1&C1隔開大致相等距離。如由圖$ 顯而易見，第三摺痕線具有一末端126，但該摺痕線實際 上仍舊具有兩條自第一摺線A延伸至包裝層壓板11〇之橫向 邊緣之輔助摺痕線128。 138518.doc -16- 200944366 大致所有上述摺痕線114、116、120皆自其形成之後作 為包裝之内側之包裝層壓板1〇〇之側形成。然而，應瞭 解，該等摺痕線亦可自對置側形成。哪一種方式有利取決 於例如包裝層壓板110之品質及厚度、包裝112之容積等 等。- A common choice for packaging containers for liquid or semi-liquid foods is a container formed from a paper-based packaging laminate. This—the container is inexpensive to manufacture, has low environmental impact, and can be stacked for efficient shipping and handling. Current packaging containers are formed from a paper-based packaging laminate in which one or a layer of barrier material (e.g., a polymer coated paper fiber core is wrapped by a metal film) to produce a packaging laminate. The barrier material is used to protect the core material from the contents of the product and also protects the product from gases and moisture surrounding the packaging container. In making this - container day f, the laminate is then folded and subsequently glued and/or welded to form a container. This is a high speed 138518.doc 200944366 process, which is typically implemented in conjunction with the filling of the container. To make it easier to fold the packaging laminate in the correct position, the packaging laminate is prepared by adding one or more crease lines. A crease line is created by passing the paper core between two or more opposing crease rolls under controlled pressure. The creases have a large: linear projections and ' or recesses. The peripheral surfaces of the opposing rolls are very close to each other, and one of the projections of one roller corresponds to one of the other of the rollers, leaving a certain margin for the core of the paper. The crease line of the vertical corner edge of the resulting packaging container of the field packaging container (which extends from the container base toward the top of the container) is oriented such that the recess is formed in the outer surface of the container to be packaged, thereby making it easy to correct The corner edges are folded in position and thus the corner edges are "bumped" inward toward the center of the packaging container. Typically, several packaging containers are simultaneously transported from a fill unit to a pin point on a dedicated load carrier (eg, a roll cage). When the containers are placed on a load carrier, they are typically stacked on top of each other. The layer-based barn should therefore preferably be sufficiently rigid to allow several layers of filled packaging containers to be stacked in this manner. The way to reduce the environmental impact of the packaging container is to reduce the amount of material used to make it, and to reduce the amount of material. The most straightforward way to reduce the volume of the container is to reduce the thickness of the material. However, reducing the thickness of the container material may also reduce its stiffness and therefore its stackability. Therefore, it has a particular load associated with the load that occurs during stacking of containers. Packaging containers that maintain rigidity and reduce material usage will be advantageous. Note that this target also covers packaging containers with increased stiffness and maintenance of materials using 138518.doc 200944366. The pressure plate can withstand large stresses. In particular, folded-package laminates can create stress in the material. The thermoplastic layer associated with the fold on the "outside" of the crease undergoes elongational deformation (i.e., tensile stress), while the thermoplastic layer associated with the fold on the "inside" of the crease is pressed together and generally along the The crease line is creased. Typically, the creases are concentrated to any crease lines present in the laminate and are guided by any crease lines present in the laminate. Due to the large extensibility of the thermoplastic material, the folding is only rarely caused The outer plastic layer is damaged in the form of cracks. However, in some cases, when the packaging laminate includes an aluminum foil, there may be a risk that the foil tends to crack due to its low extensibility. The tube formed by the laminated web is formed, for example, during a parallelepiped package, filled with a product and laterally sealed along the sealing zone, the zones being positioned at a distance from one another to form individual packages, in the sealed zone Cutting to separate the packages from the tube. However, the sealing flaps in the bottom end of the package are folded towards the bottom surface of the package, the flaps having - corresponding to the two packaging laminates The thickness of the degree. Next, the triangular side flaps formed at the sides of the package are folded toward the bottom surface of the package, and the side flaps also have a double material thickness. This means that there are crease lines with other crease lines. , that is, the first _ __ crease (four) near fold and the first (four) line intersect H trace (four) re-read the board. In the intersection between the finger marks, part of the material due to gamma in the vicinity of it Large total material thickness withstands large tensile stresses and/or; sensitive folds (which form a thickening or bulging in the material) in the fold line 138518.doc 200944366 The presence of the trace line is further increased in the crease Elongation deformation in the outer layer of the laminate on the "outer side" - the manner of reducing the tensile stress is such that the first crease is distinct and clear, and the first fold (which is formed above the first fold) is not located in the second Any undesired elongational deformation in the outer layer of the packaging laminate on the folded 'J': the document eP-A1_0 027 668 discloses a packaging laminate suitable for = first along a first fold line and then along a first and first The second fold line intersecting the fold line is folded by 'where the finger line is reduced Refers to an amount of the first wrinkle - fold significantly. The laminate/0 first and second intersecting fold lines have finger marks. In the father of the door of the finger line, the crease lines are intermittent and the first crease line along the first line is provided by two auxiliary fts disposed on both sides of the line of loss and substantially parallel thereto. Replace the trace. After folding, the fold line extends beyond the doors of the auxiliary crease lines without coincident with it. Therefore, the wrinkles formed on the "inside" of the crease are concentrated to the auxiliary crease line and are not concentrated to the fold line. Thereby, the thickness of the material in which the first crease will be more gradual and the second crease is to be formed in the vicinity thereof becomes smaller. Therefore, the elongation deformation of the packaging laminate on the "outside" of the second crease is reduced. However, it has been found that in some cases, such as for some types of laminates, laminate thicknesses or package volumes, the auxiliary scars disclosed in EP-A1-0 027 668 may not be entirely satisfactory. For example, some packaging layers, which are not suitable for folding, have a distinct first crease. SUMMARY OF THE INVENTION The present invention is directed to a novel packaging container that satisfies the above criteria, in other words, a container having a ratio of increased stiffness to material usage. 1385I8.doc -6 - 200944366 This object has been achieved by a packaging laminate and a method of making such a packaging laminate. The packaging laminate comprises a paper core or paperboard and has a first side forming the outer side of a packaging container and a second side forming the inner side of the packaging container and the material is commonly referred to as a packaging laminate. In addition, the material has crease lines defining the fold locations that can be used during the formation of the packaging containers. Each crease line defines a linear projection on one side of the material and a corresponding linear recess on the opposite side of the material. The packaging laminate is characterized in that at least one crease line forming one of the corner edges of the packaging container has a linear projection on the first side of the packaging laminate. The method for making the packaging laminate comprises: stamping the packaging laminate with one or more by using two or more corresponding crease rollers that collectively define one of the one or more crease lines A crease line, each crease line defining a linear projection and a corresponding linear recess. The method is characterized by positioning one of the one or more crease lines for forming one of the packaging containers. The linear projection on the first side of the packaging laminate. The crease of the present invention brings several advantages, all of which are derived from the fact that it is easier to fold the packaging container when using the present invention. Since the fold is more easily folded, the crease line does not have to be so deep, and therefore the influence on the strength and hardness of the packaging laminate is not affected as much. According to prior art methods, the crease line must be so deep that there is a risk of cutting material along the crease line at the time of crease. This produces a narrow production window in terms of crease pressure. When using the present invention, the crease pressure can be reduced, resulting in a wider fabrication of the 138518.doc 200944366 window, less wear on the crease plate (the plate disposed on the crease rollers), and thus more economical Produced. Since the packaging container is more easily folded using the present invention, the final folding of the packaging container (which is carried out after filling the packaging container) is promoted and the speed of manufacture can be increased. Another aspect of the present invention also provides a packaging laminate having crease lines arranged to reduce the risk of cracks occurring in the laminate at the intersections intersecting each other. This aspect has been achieved by a packaging laminate comprising first and second intersecting fold lines adapted to fold the packaging laminate adjacent thereto to form a package, the laminate being adapted to first along the first a fold line and then a fold along the second fold line. The laminate further includes respective first and second crease lines along the first and second fold lines, the crease lines being adapted to facilitate folding of the package, wherein The second crease line has an interruption or an end along the second line of loss in a region where the first and second finger lines intersect; the interruption or end has an auxiliary crease line, and the auxiliary folds The score line is substantially parallel to the second fold line and the first crease line has an interruption or end adapted to receive the auxiliary crease lines. In this manner, the folding along the first crease is performed in a conventional manner that does not prevent wrinkles from occurring at the fold line, and the second fold along the second fold line disperses the stress in a uniform manner The smoothing of the wrinkles formed at the fold line is reduced, and the wrinkles cause an increased elongational deformation in the outer layers of the packaging laminate at the "outside" of the fold. Therefore, the risk of cracking in the outer layers of the packaging laminate is reduced. By replacing one of the second crease lines with two auxiliary crease lines, the second crease can be more easily and more gently 138518.doc 200944366 follows the first crease. This configuration can be used, for example, for packaging laminates that are sensitive to significant creases, and thus can be used as an alternative to previously known crease line configurations. These auxiliary crease lines include a linear recess on the first side of the packaging laminate. One of the present inventions is significantly more effective than the prior art. It should be that the auxiliary crease lines provide a predictable crease that appears to be substantially identical each time, and the prior art method is more random. It is believed that this is the case, as this prior art method is intended to layer the packaging laminate so that the layers can be folded independently 'and thus avoid tension, and thus cracks, and the invention provides a suitably defined finger Trace lines along which a crease will be formed. In a preferred embodiment of the present invention, wherein the auxiliary crease lines are provided and the region intersecting the first fold line in the 系 is the end point of the interruption in the first crease line or The end point is defined by the end point or the end point of the interruption in the second crease line. The auxiliary crease lines are visible in the region or the end of the break of the crease lines. If the ancillary crease lines coincide with other crease lines, the material tends to be too soft and does not achieve a satisfactory guidance for a pair of such fold lines. Preferably, the auxiliary crease lines are disposed on both sides of the second fold line and spaced apart therefrom such that the second fold line extends between the auxiliary crease lines after folding the packaging laminate Not coincident with it. A too short distance between the auxiliary crease lines and the fold line can cause the packaging laminate to soften so as not to impart a satisfactory guide to the fold line in the space between the two auxiliary crease lines. In this way, it can be avoided that the fold line will instead be guided by the auxiliary crease lines when folded and tend to follow either of the two 138518.doc 200944366. Advantageously, the distance between the end point or the end points of the second crease line and the end point of the respective auxiliary crease lines closest thereto is such that the second fold line extends after folding the packaging laminate These auxiliary crease lines do not coincide with each other. In this way, it can be avoided that the fold line will instead tend to follow any of the auxiliary finger lines when the finger is folded. As mentioned above, a too short distance can result in softening of the packaging laminate so as not to impart a satisfactory guide to the fold line. In another preferred embodiment, the auxiliary crease lines are parallel to each other and symmetrically positioned relative to the second fold line. Thereby, the wrinkles formed in the vicinity of the finger line are more evenly dispersed on both sides of the fold line, i.e., the both sides will be formed to be substantially equal. As is generally mentioned, substantially all of the '(4) crease lines are formed from the side of the packaging laminate that is the inside of the package after the package is formed. It has been shown that the formation of such crease lines in this manner is particularly advantageous for panels, laminate thickness or, for example, package volume. The armored floor is in: - comparison: in the embodiment, a third crease line is along the -first-located-area... The second crease line is near the (four) the packaging laminate and the auxiliary The finger line coincides with the second line; the line is disposed substantially parallel to the second and third fold lines and is substantially equal to the first line from the first line of the first mountain fold laminate. = The enemy fold forms an appropriate guide to the package - the area overlaps - no further need to guide the wrinkle formation during the folding and the °° domain. In general, it is preferred that the packaging laminate in the region 138518.doc 200944366 smoothly follows the first region to reduce the risk of unnecessary elongational deformation of the packaging laminate. The present invention is also directed to a package made of a packaging laminate comprising a packaging laminate laminated adjacent thereto to form first and second intersecting fold lines of the device. The crease is first along the first fold line and then along the a second fold line providing 'the package further comprising respective first and second crease lines along the first and second fold lines, the crease lines being adapted to facilitate folding of the package, wherein the second crease line Having an interruption or an end along the second fold line in a region where the first and second fold lines intersect, the interrupt end may have an auxiliary crease line, and the auxiliary crease line and the second fold line are substantially Parallel and defined by a linear recess on the first side of the packaging laminate to form the inside of the packaging container. The first crease line has an interruption or end suitable for an auxiliary crease line such as a valley. In this way, the folding along the first fold line is performed in a conventional manner that does not prevent the occurrence of wrinkles at the fold line, and the folding along the second fold line distributes the stress in a uniform manner and reduces the formation on the fold line. The wrinkles are carried out in a smooth manner which causes an increased elongational deformation in the outer layer of the packaging laminate at the "outside" of the crease of the package. Therefore, the risk of cracking in the outer layers of the packaging laminate is reduced. By replacing one of the second crease lines with two auxiliary crease lines, the second crease can follow the first crease more easily and more gently. This configuration can be used, for example, to form a package of packaging laminate that is sensitive to significant creases. Preferably, the package is formed according to the features defined in the appended claims of the packaging laminate. [Embodiment] 138518.doc • 11- 200944366 Referring to Fig. 1, the method of the present invention according to one embodiment is implemented in a crease machine, more specifically, in a crease unit 2 of a converting machine, wherein paper The core is stamped, has crease lines and has a barrier material to form a packaging laminate 4. In the crease unit, the paper passes between two opposed crease rolls (a first roll 6 having a right stem projection and a second roll 8 having a plurality of recesses). The concave portions and the projections are registered to form corresponding projections 1 and 12 on the packaging laminate 4, see Fig. . The crease rolls 6, 8 are usually made of metal, but it should be understood that they may be made of other materials as long as they withstand the stress from the crease operation and have the necessary durability. ❹ In accordance with one embodiment of the present invention, a packaging laminate 4 is provided for forming a packaging container. The packaging laminate comprises a core of paper or paperboard 14 and has one or more layers of barrier material, such as a laminated polymeric film and/or a metal film. These barrier materials are used to protect the core material 14 from the contents of the product and also to protect the product from gases and liquids surrounding the packaging container. The packaging laminate has a first side 16 that forms the outer side of a packaging container and a second side 18 that forms the outer side of the packaging container. The packaging laminate 4 can also be filled with any type of foldable material or material that is required for a full-fledged packaging container. «Any laminated barrier material is usually applied after the finger marks. A general procedure is to laminate a polyethylene (PE) film to one side or both sides of the paper core 14. If the metal poise is used as another barrier material, this can be placed after the crease. — The PE layer acts as a binder to "glue" the metal to the core material, and typically two layers of PE are laminated on top of the side metal foil to act as a barrier material and to be used in sealing the packaging container. 138518.doc •12- 200944366 When making a parallelepiped packaging container, the packaging laminate 4 is folded and subsequently glued or welded to form a container. This is a high speed process that is typically implemented in conjunction with the filling of the container. The crease line 20 is arranged to make it easier to fold the packaging laminate 4 in the correct position. According to a first embodiment of the invention, one or more of the one or more crease lines 2 are formed such that the geometry of the one or more crease lines 20 follows the corresponding crease edge when folded Natural curved curve. In particular, this forms the crease line 20 of the corner edge 22 of the packaging container (see Figure 3). This means that the deformation of the second (inner) side 18 of the packaging laminate 4 along the crease line of the one or more corner edges 22 is substantially avoided, since the projections 1 and the recesses 12 are attached to the corner edges 22 In the direction. For a vertical corner edge 22, this means that the one or more recesses 12 of the one or more crease lines 20 are formed in the inner surface of the packaging container to be formed. When one or more of the corner edge crease lines 20 are thus disposed, a more rigid container can be achieved and thus a smaller thickness, and therefore a more environmentally friendly package, can be used using a container that uses prior art crease lines. Laminate 4. Surprisingly, the present invention facilitates one of the packages to increase stiffness. The reason may be to reduce the delamination of the coating from the paper core 2. The reason may also be that the paper fibers in the core 2 of the prior art method are less affected by the manner in which the crease lines are formed. 4A and B compare photographs of a practical example of the inner crease according to the present invention (Fig. 4A) and a general crease according to the prior art (Fig. 4B). In order to improve the definition, the photo has been digitally enhanced. Use the same packaging laminate in both examples. As can be seen from these pictures, the outer corner is more clear in the figure with the inner crease, and the 13S518.doc -13· 200944366 packaging laminate with the usual crease shows a corner with two bends. Further, when the laminate is bent, the length of the inner layer (the layer facing the inner side of the packaging container) is kept constant, which means that it is not required to be folded or wrinkled. The inner crease will push the inner layer to form a ridge of the core of the laminate and compress it, and it will reasonably be more rigid. This should be compared to the situation in which the inner layer will be pushed to form an outer crease away from the core of the packaging laminate. Therefore, as is apparent from Fig. 4B, the bonding between the fibers constituting the core will be adversely affected, resulting in the packaging laminate being less rigid. Fig. 5 schematically shows a portion of the packaging laminate which is indicated entirely by the reference numeral ιι in the figure. The packaging laminate UG may comprise a core layer of fibrous material, such as, for example, paper or paperboard, the core layer of the fibrous material having an outer layer of a plurality of polymers, preferably a thermoplastic material. In addition, the packaging laminate ιι〇 also includes an additional layer, such as a metal box (for example, a box) gas barrier layer. The L-laminated laminate 110 includes a first fold line A and a second fold line B1 adapted to fold the package laminate adjacent thereto to form a package 112, see Figures 6 and 7. As can be seen in Figure 5, the first and second fold lines a, B1 intersect each other. This push line is only a geometric line and is marked by a dashed line. Additionally, to facilitate formation of the package 112, the laminate 11A includes corresponding first and second crease lines 114, 116 along the first and second fold lines A, B1, respectively. The use of crease lines to facilitate the folding of the package is common and the manufacture of the crease line to the laminate is carried out using conventional techniques' which will not be further elaborated. Along the second fold line B1, the second crease line 具有6 has an interruption or end 丨8 ^ 138518.doc • 14- 200944366 The interruption or end m is located in the region where the first-to-second finger line A, B1 intersects . This area is marked as a rectangle in Figure 5. At the break or end 118, the crease line 116 is replaced by a second auxiliary crease line 12〇. The auxiliary crease lines m are parallel to the second fold line B1A and are defined by a linear recess on the side of the packaging laminate forming the inside of the package ι2. In addition, the first crease 'line A has an interruption 122 or a terminal end adapted to receive the auxiliary crease lines 12A. In other words, the interruption 122 or the end is located in the region where the first and second fold lines A, B1 intersect. As seen in Figure 5, the first crease line 114 is ❹t broken, i. The intersection of the auxiliary crease lines 12() continues, and the second crease line 116 terminates at the intersection. The intersection region with the auxiliary crease line 120 and the first and second fold lines A intersecting is the end of the interruption 122 in the first crease line 114 (ie, the end of the crease line from which the U2 is interrupted) ) and the end of the second crease line ιΐ6 ιΐ8 knife boundary. In a preferred embodiment, the auxiliary crease line 120 is not disposed on the outer side of the marked rectangle, that is, the auxiliary crease line 丨2〇 is not disposed such that it intersects with the first crease line 114 or is set to It overlaps with the second crease line 116. Preferably, the auxiliary crease line 12 is disposed on and spaced apart from the two sides of the second fold line so that the second fold line B i extends after the fold lining of the packaging laminate 1 1 延伸Lines 120 do not coincide with each other. Furthermore, the longitudinal distance between the end point 118 of the second crease line 116 and the end point of the corresponding auxiliary crease line 12〇 closest thereto is such that the first finger line B1 extends after folding the packaging laminate 1 1 0 These auxiliary crease lines do not coincide with each other. The longitudinal distance means the distance oriented along the second fold line B丨. The auxiliary crease lines 120 are parallel to each other and are symmetrically positioned with respect to the second fold line b. 138518.doc -15- 200944366. As is apparent from FIG. 5, the distance between the end point 118 of the second crease line 116 and the end point of each of the respective auxiliary crease lines 120 closest thereto is about the same as the distance between the two auxiliary crease lines 120. . Further, the width or thickness of the auxiliary crease line 120 is greater than the width of the first and second crease lines, the hopper 6 and the crease 6. Moreover, the distance between the auxiliary crease lines 12 较佳 is preferably greater than the distance from the auxiliary crease line 120 to the end of the interruption 122 of the first crease line 114. In addition, the length of the auxiliary fold line 120 is substantially less than or equal to the break of the crease line 116. In the illustrated example, there is no interruption other than one end 118 of the crease line 6 and the length of the auxiliary crease line 120 is approximately from the end 118 of the crease line ι 6 to the nearest lateral edge of the packaging laminate 11 〇 One-half the length of the distance. Additionally, the distance between the end 118 of the crease line 116 and the end of each of the respective adjacent auxiliary crease lines 120 is about the same as the distance from the edge of the packaging laminate to the end of the auxiliary crease line positioned closest to the edge. . However, approximately all of these distances depend, for example, on the quality and thickness of the packaging laminate 110, the volume of the package 112, and the like. In addition, the packaging laminate includes a third crease line 124 along a third fold line. The third fold line C1 is substantially parallel to the second fold line (1). The third crease line 124 has an interruption or end 126 in an area adapted to fold the packaging laminate 11 在一 near a fourth line D to coincide with the auxiliary crease line, the fourth line D1 and The second and third fold lines B1 & C1 are arranged substantially in parallel and spaced apart from the second and third fold lines B1 & C1 by substantially equal distances. As is apparent from Figure $, the third crease line has an end 126, but the crease line actually has two auxiliary crease lines 128 extending from the first fold line A to the lateral edges of the packaging laminate 11'. 138518.doc -16- 200944366 substantially all of the above crease lines 114, 116, 120 are formed from the side of the packaging laminate 1 that is formed on the inside of the package. However, it should be understood that the crease lines may also be formed from the opposite side. Which one is advantageous depends on, for example, the quality and thickness of the packaging laminate 110, the volume of the package 112, and the like.
本發明亦與一由所述包裝層壓板形成之包裝n2相關， 且在下文中’將參照圖6及7來闡述包裝112之底部之形 成。該包裝例如係一由本申請人在商標Tetra Brik下出售 之平行六面體包裝且將不加以詳細闡述。該包裝之底部 (參見圖6)包括一呈一翼片13〇形式之橫向密封。在密封之 前，在第四線D(圖〗）附近「摺疊」包裝層壓板11〇以使摺 線Β1與C1彼此重合。然後，藉助沿摺線”及^之摺痕線 132形成包裝112以使其呈現一矩形截面。包裝ιΐ2亦在第 一摺線Α附近摺疊一第一次。由此，翼片13〇朝一所形成且 翼片130在摺疊之後將承載於其上之底表面摺疊。較佳 地，沿一遠離包裝m之一縱向密封136之方向摺疊翼片 130。在摺疊時，亦形成三角形側摺翼134。接下來，沿第 二摺線B1形成一第二摺痕。在第二摺疊期間，且如由圖7 顯而易見，三角形側摺翼134朝包裝112之底部摺疊。因 此，已在一在第一摺線A附近之相交第一摺痕上形成一在 第二摺線B1附近之第二摺痕。由於本巾請案之焦點通常與 在兩條相交摺線附近兩次摺疊相關，因此本說明著重於第 一摺線A與第二摺線B 1之間的相交區域。然而，在所示包 裝實施例中，第二摺痕實際上係在一包括兩條摺二 138518.doc •17- 200944366 ci之摺線附近形成。在密封翼片130時，第二摺線B1與第 二摺線C1將重合，換句話說’當第二次摺疊時，亦即，當 朝包裝底部摺疊三角形側摺翼時，在B1附近摺疊摺翼之一 個部分，而在ci附近摺疊另一個部分。而且，在B1附近 摺疊翼片130之一個部分並在C1附近摺疊翼片130之另一個 部分。 _ 圖8(其係一使用輔助摺痕線120之摺痕之一截面）可充分 ， 代表圖7之一部分截面。圖8圖解闡釋其内侧已具有摺痕線 120以及自内側之凹入部之兩層包裝層壓。摺痕線12〇以及 ❹ 摺線B1及C1(其由填充圓指示）沿一與紙張表面正交之方向 延伸。内側層壓板之蘑菇形狀係本發明摺痕之典型形狀， 且係一重複形狀從而確保摺痕之一致及可預見品質。在指 疊期間，内層將受到一來自外層（來自圖8中之右侧）之壓力 且因此將沿摺痕線12〇而不是在一任意位置中摺疊。在此 上下文中，應注思，圖8僅係一例示，且不構成一現實表 不。輔助摺痕線120可用於改良不同於具有包裝之拐角之 發明性摺痕之包裝容器之包裝容器。 ◎ 儘管上文已就一目前較佳實施例闡述了本發明，然而應 瞭解，可進行各種修改及改動，而此並不背離隨附申請專 利範圍中所界定之本發明之目的及範疇。 【圖式簡單說明】 圖1示意性圖解闡釋一紙腹板之摺痕； 圖2係一具有根據本發明之摺痕線之剖面包裝層壓板； 圖3顯示一根據本發明之包裝容器之一拐角邊緣·， 138518.doc -18- 200944366 圖4A及B分別係將一根據本發明形成之包裝容器之—招 角與一先前技術包裝容器之一拐角相比較之照片； 圖5示意性地顯示根據本發明之包裝層壓板之一部分； 圖6示意性地顯示一其底部係藉由一沿一第一摺線之第 一摺疊而形成之平行六面體包裝； 圖7示意性地顯示在一沿一第二摺線之第二摺疊之後之 - 來自圖6的包裝，該第二摺線與該第一摺線相交；及 圖8顯示兩層包裝層壓板之—示意剖面圖，其中内側具 © 有根據本發明之一個實施例之摺痕線。 【主要元件符號說明】 2 摺痕單元 4 包裝層壓板 6 第一輥 8 第二輥 10 凸出部 12 凹入部 14 芯材 16 第一側 18 第二侧 22 拐角邊緣 110 包裝層壓板 112 包裝 114 第一摺痕線 116 第二摺痕線 138518.doc -19- 中斷或末端 輔助摺痕線 中斷 第三摺痕線 末端 辅助摺痕線 翼片 摺痕線 三角形側摺翼 縱向密封件 第一摺線 第二摺線 摺線 第三摺線 摺線 第四線 •20-The invention is also related to a package n2 formed from the packaging laminate, and the formation of the bottom of the package 112 will be explained hereinafter with reference to Figs. The package is, for example, a parallelepiped package sold by the Applicant under the trademark Tetra Brik and will not be described in detail. The bottom of the package (see Figure 6) includes a transverse seal in the form of a flap 13 。. Before the sealing, the packaging laminate 11 is "folded" in the vicinity of the fourth line D (Fig.) so that the folding lines 与1 and C1 coincide with each other. Then, the package 112 is formed by a crease line 132 along the fold line to form a rectangular cross section. The package ι 2 is also folded a first time near the first fold line. Thus, the flap 13 is formed toward one The flap 130 is folded over the bottom surface carried thereon after folding. Preferably, the flap 130 is folded in a direction away from the longitudinal seal 136 of the package m. When folded, the triangular side flap 134 is also formed. Down, a second crease is formed along the second fold line B1. During the second fold, and as is apparent from Figure 7, the triangular side flap 134 is folded toward the bottom of the package 112. Thus, already near the first fold line A The intersection of the first crease forms a second crease near the second fold line B1. Since the focus of the present invention is usually related to folding twice in the vicinity of the two intersecting fold lines, the description focuses on the first fold line A. The intersection area with the second fold line B 1. However, in the illustrated package embodiment, the second fold is actually formed near a fold line comprising two folds 138518.doc • 17- 200944366 ci. When sealing the flap 130, the second fold The line B1 and the second fold line C1 will coincide, in other words, when the second fold, that is, when the triangular side flap is folded toward the bottom of the package, a portion of the flap is folded near B1 and folded near ci. Another part. Moreover, one portion of the flap 130 is folded near B1 and the other portion of the flap 130 is folded near C1. _ Figure 8 (which is a cross section of the crease using the auxiliary crease line 120) Sufficiently, it represents a partial cross section of Fig. 7. Fig. 8 illustrates a two-layer packaging laminate having a crease line 120 on the inner side and a concave portion from the inner side. The crease line 12 〇 and the crease lines B1 and C1 (which are filled by a circle) The indication extends along a direction orthogonal to the surface of the paper. The mushroom shape of the inner laminate is a typical shape of the crease of the present invention and is a repeating shape to ensure consistent and predictable quality of the crease. Will be subjected to a pressure from the outer layer (from the right side in Figure 8) and will therefore be folded along the crease line 12 instead of in an arbitrary position. In this context, it should be noted that Figure 8 is only an example, And does not constitute a reality No. The auxiliary crease line 120 can be used to modify a packaging container that is different from the packaging container having the inventive crease of the corner of the package. ◎ Although the invention has been described above with respect to a presently preferred embodiment, it should be understood that Various modifications and changes may be made without departing from the spirit and scope of the invention as defined in the appended claims. FIG. 1 is a schematic illustration of a crease of a paper web; A cross-sectional packaging laminate having a crease line according to the present invention; Figure 3 shows a corner edge of a packaging container according to the present invention, 138518.doc -18- 200944366. Figures 4A and B are respectively formed in accordance with the present invention. a photograph of a packaging container - a corner of a corner of a prior art packaging container; Figure 5 is a schematic representation of a portion of a packaging laminate in accordance with the present invention; Figure 6 is a schematic illustration of a bottom portion thereof a parallelepiped package formed along a first fold of a first fold line; Figure 7 is schematically shown after a second fold along a second fold line - the package from Figure 6, the A first fold line intersects the fold line; and Figure 8 shows the packaging laminate of two layers - a schematic cross-sectional view in which the inner crease lines having © embodiment of the present invention in accordance with one embodiment. [Main component symbol description] 2 Crease unit 4 Packaging laminate 6 First roller 8 Second roller 10 Projection portion 12 Recessed portion 14 Core material 16 First side 18 Second side 22 Corner edge 110 Packaging laminate 112 Packaging 114 First crease line 116 second crease line 138518.doc -19- interrupt or end auxiliary crease line break third crease line end auxiliary crease line wing crease line triangle side flap longitudinal seal first fold line Second fold line fold line third fold line fold line fourth line • 20-