TW530001B - Method for preparing air channel-equipped film for use in vacuum package - Google Patents

Method for preparing air channel-equipped film for use in vacuum package Download PDF

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Publication number
TW530001B
TW530001B TW091117967A TW91117967A TW530001B TW 530001 B TW530001 B TW 530001B TW 091117967 A TW091117967 A TW 091117967A TW 91117967 A TW91117967 A TW 91117967A TW 530001 B TW530001 B TW 530001B
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Taiwan
Prior art keywords
heat
sheet
air
layer
grooves
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TW091117967A
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English (en)
Inventor
Kyul-Joo Lee
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Kyul-Joo Lee
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Priority claimed from KR10-2002-0009064A external-priority patent/KR100444402B1/ko
Application filed by Kyul-Joo Lee filed Critical Kyul-Joo Lee
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Publication of TW530001B publication Critical patent/TW530001B/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/06—Embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/28—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • B29C59/046—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts for layered or coated substantially flat surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2023—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2038—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/02—Open containers
    • B32B2439/06—Bags, sacks, sachets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y10T428/1341—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1379—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
    • Y10T428/1393—Multilayer [continuous layer]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Wrappers (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Description

53000! 五、發明説明（l) 【本發明之領域】 本發明係關於-種用於眞空包裝之具空氣導槽薄膜之 製造方法，尤指-種具空氣導槽薄膜之製造方法以及一種 以此薄膜製造之眞空包裝袋；其中—具有排氣導槽之❹ 封樹脂層係形成於-不透氣基材層上，且排氣導槽之圖樣 係由一冷卻滾筒上之溝槽所形成。 【本發明之背景】 在很多國家(包含美國）中，長時間保存易腐爛食品， 例如食用肉類或加工肉t，的方法已被廣泛使用，其包括 將，品裝入可保持眞空的塑膠袋中、使用一抽氣機或其他 抽眞空機器將袋内$氣抽出、〃及$緊地密封塑膠袋等步 騾。 第1圖所示為傳統眞空包裝袋之透视圖，其包含··一 王體1 1 0，係由塑膠類薄膜組成之薄片丨丨丨和丨丨2所構 成；一密封部120,其係以熱密封主體11〇之底邊、左邊 和右邊邊緣，以形成一内部空間，用以容納易腐爛的產 品，像是食物；以及一未封口部13〇，位於主體11〇之上 邊緣，以由此將易腐爛的產品裝入主體11〇並將空氣抽出 主體110内部。其中，主體110通常以熱塑性聚乙烯樹脂 來製作，其可被熱融化並對人體無害。 將食品由未封口部130裝入袋内，並以一抽氣機或其 他抽眞空機器將空氣由袋内抽出之後，加熱未封口部至一 預定溫度，同時按壓之以將袋密封。 ^---------^---------— (請先閲讀背面之注意事項再填寫本頁各欄)
530001 A7 B7 五、發明説明（2 ) 然而，上述之袋並不便利，因當將易腐爛的產品裝入 袋中並以抽眞空機器將空氣由袋内抽出時，在空氣排出的 同時，王體1 1 0的薄片1 U和i丨2會很快地黏在一起，如 此一來剩餘在袋子底部的空氣可能無法完全抽出。 、為避免上述缺黑占，於是發展出一種藉助形成凸出物的 万法，在傳統薄片上形成空氣導槽的技術，並以此技術於 構成主體之-或雙面薄片上形成空氣導槽。於是，當以抽 眞空機器將空氣由袋内抽出時，空氣便可藉由空氣導槽抽 出，因此可輕易的將存在袋内底部的空氣抽出袋子。 美國專利第2,778，173號揭露一種使用上述 密封包裝的方法。依此方法，一排氣開口係形成於一第— :片上，而-第二薄片係置於第一薄片上，並且恰好重 疊同時於至少其中一或二薄片上形成複數個間隔之凸 出物，以形成連接至開口、用以排出空氣之導槽。此外， 凸出物可以是角錐形或半球形，並以熱的母和公模或各種 工具按壓構成薄片之薄膜而形成。或者，可在 第二薄片之間插入具有凸出的條狀物，以形成導槽。’ ，此方法’以整片可彎曲、不透水的薄片材料上的凸 出物來形成凸出物間之導槽，且將—部份薄片摺叠於另一 部伤薄片上’使凸出物介於此二部分薄片之間，且薄片周 】邊：=!合。然後，密封部份的接合周園邊緣，以形 成二在周園i緣的未密封部分具有―入口的殼體。將一日 由此入口放入忒體中，再將剩餘的接 密封，以封閉入口。之後，穿缺如八人固以相互 後牙破一邵份的薄片材科以形成 本紙張尺度翻中關家標^
0裝---------訂-------- (請先閲讀背面之注意事項再填寫本頁各欄) 、 ^0001 ^0001
五、發明説明（3 ) :連接至導槽的抽氣開口，並經由導槽和開口將空氣移出 體内部，再將開口密封住。然而，這種方法並不便利， 因其在將日用品裝入殼體後，還另需兩個密封的步騾。 為避免上述缺點，於是發展出另一種技術，如第1圖 所示之傳統眞空包裝袋的主體，為層壓薄膜所構成，且至 >有一薄片是以一凸模形成凸出物。 第2圖為傳統眞空包裝袋之透視圖，其一側形成有凸 出物。此技術中，構成如第2圖所示之傳統眞空包裝袋主 體110之層壓薄膜層113和114中，薄膜層113被模壓以形 成突出物116和導槽115，導槽115是由突出物116之間的 間隔所形成的，以便於將空氣抽出包裝袋。 上述技術為美國專利第Re· 3 4,929號之例示，其眞 二包裝袋係由一第一嵌板和一第二嵌板互相重疊而成，每 一嵌板具有一預定厚度。除了接收產品的入口外，將其底 邊、左邊和右邊邊緣相互密封住。此外，第一嵌板和第二 嵌板各有一厚度均勻的熱密封内層和厚度均勻的不透氣外 層，且在第一嵌板和第二嵌板中，至少有一個嵌板的内和 外表面上形成複數個突出物於格子狀圖樣中（參考美國專 利第Re. 34,929號之第6和7圖）。特別是於一熱滾筒上形 成凸出圖樣’並&供具有不透氣層和熱密封層之層壓薄 膜予熱滾筒，而熱壓形成導槽115與突出物116。然而， 當用熱強行將突出物和導槽形成於具一預定厚度之薄膜上 時，其介於導槽和突出物間之接合部份會被扭曲，而此扭 曲部分之薄膜則會變薄。如此一來，在形成凸出的過程 -------------裝---------訂--------- (請先閲讀背面之注意事項再填寫本頁各襴)
530001
五、發明説明（4 ) (請先閱讀背面之注意事項再填寫本頁各欄) 中，薄膜可能會被撕破；或是在重新拉膜以形成… 的過程中，會有小孔洞在薄膜上產生，因而環境 便流進袋内。同樣地，也必須常常更換新的凸模，因:= 凸模被長期使用後，凸模會磨耗而將薄膜損壞。 ：、當 其間，與歐洲專利〇 648 688们相關的美國專利 =554,423號，揭露一種使用另一突出物樣式的眞空包裝 袋。依此專利，一種用以形成眞空包裝產品袋的管狀：件 包含具有不透氣外層和熱密封内層之第一薄片，和具有、 透氣外層和熱密封内層之第二薄片，且第一薄片和第二= 片相互黏結於上部和下部邊緣，以於袋中形成容納易腐爛 產品的空間。特別的是有複數個熱密封繩索元件被加熱， 而在固疋間隔連接至第一薄片和第二薄片任一之内薄片。 以此方式，熱密封繩索元件沿著管狀元件的全長延伸，且 基本上與上和下黏結邊緣平行，以形成一介於繩索元件間 的間隔，作為排氣導槽。此方面由第3圖來圖示説明薄片 上複數個熱密封繩索元件之配置和熱黏結◦依此專利，複 數個繩索元件4由用以製造繩索元件的擠壓頭2擠壓出，並 以固定間隔置於層壓薄片1之熱密封層上，層壓薄片1具有 不透氣層和熱密封層，且使用壓力滾筒3和3,將繩索元件4 熱黏結至熱密封層表面。然而，因需要分離的設備來製作 繩索元件，且將複數個繩索元件在固定間隔熱黏結至熱密 封内層的步騾非常複雜，此專利並不便利。其他缺點為很 難形成各種的圖樣形狀，如僅有繩索樣式的導槽可形成， 本紙張尺度週用中關家標準（CNS) A4規格（21GX297公董） 530001 A7 [五、發明説明--- 同時因為用以形成導槽的繩索元件是额外附加在具一預定 厚度的熱密:封内層上，很難製作出厚度相當的薄膜。 參考第4圖，為另一種用於製作眞空包裝薄膜的方 法/、導槽係以使用吹氣法之共擠壓製程直接形成於熱密 封内層上，JL所得熱密封内層係層壓於不透氣外層上。 詳、、.田地，犬出物5係裝設於内層之共擠壓環上，如此 則當薄膜被向上吹時，用於眞空包裝薄膜上之突出物便形 成導槽。然而，這個方法不便利之處在於不管突出物的形 狀為何，在薄膜上只能形成條紋狀的導槽，而無法得到各 式各樣的導槽形狀。此外，在導槽之間形成狭窄間隔亦有 所限制，因共擠壓製程的特色在於使用吹氣，如此一來構 成袋子主體的薄片在眞空包裝時已經互相黏結在一起，如 此袋内將無法形成足夠的眞空狀態。 因此，仍然需要提供一種製作眞空包裝薄膜的方法， 以提供更多樣化的導槽圖樣，且相較於傳統方法更為朽 單。 ^ 本發明人做了廣泛的研究以改善製作眞空包裝薄膜的 万法，而得到以下之發現。即以將熱密封樹脂經由擠壓機 的噴嘴融溶擠壓：，並在層壓滾筒和表面預先形成圖樣上有 溝槽的冷卻滾筒之間提供一不透氣基材層的方法，來製作 眞空包裝薄膜。以此方法在不透氣基材層上形成具有突出 I 二 國國家標準（CNS) A4規格（210X297公釐)~一 ' ^ ^--------- (請先閲讀背面之注意事項再填寫本頁各欄) 530001 五、發明説明（6 ) 【本發明之概述】 因此，本發明之目的係在提供一種用於眞空包裝薄膜 之製造方法，俾能有效地防止小孔洞產生，並改善利用準 確形成之導槽來達到眞空之能力。 本發明之另一目的係在提供一種用於眞空包裝薄膜之 製造方法，俾能立即提供各種導槽圖樣之薄膜。 本發明之又一目的係在提供一種具良好物理性質之薄 膜製造方法，以用於眞空包裝。 本發明之再一目的係在提供一種以本發明之薄膜所製 造之眞空包裝袋。 基於本發明，上述本發明之目的可以提供一種用於眞 空包裝之具空氣導槽薄膜之製造方法來達成，其包含提供 一不透氣基材以及一融熔壓出之熱密封樹脂至一層壓單 7G。層壓單70係由一層壓滾筒和一冷卻滾筒所組成，用以 於不透氣基材層上形成一熱密封樹脂層，其特徵在於以上 述方式塑造並冷卻熱密封樹脂層，而於熱密封樹脂層上形 成複數個對應於複數個溝槽之突出物，以於突出物之間定 溆排出玉氣之導槽，且溝槽係形成於預先決定於冷 周園表面上之圖樣。 Θ …：外’本發明亦提供一種眞空包裝袋，其包含互相重 :《罘-薄片和第二薄片，每一薄片皆由層壓薄膜所組 极“：不透氣基材層做為外層、以及一熱密封樹脂層 、、、曰，其中第一薄片和第二薄片至少其一為本發明之 方法所製造之眞空包裝薄膜。第一薄片和第二薄片彼此沿 以形成容納一待眞 530001 五、發明説明（7 ) 著其底邊、左邊和右邊邊緣相互黏結 S包裝產品之空間。 【圖式簡單説明】 第1圖係傳統眞空包裝袋之透視圖； 第2圖係傳統眞空包裝袋之透視圖，其— ,,. 崎巧形成有 第3圖係傳統以熱將複數個熱密封繩索元件黏結於層壓薄
片之熱密封層表面，其中層壓薄片包含不透氣層和二 層； A 第4圖係以傳統使用吹氣的共擠壓製程來形成空氣導槽· 第5圖係依據本發明實施例中之薄膜，將具有突出物"和排 氣導槽的熱密封樹脂層形成於不透氣基材層上； 第6圖係第5圖依據本發明實施例中之薄膜，將具有突出物 和排氣導槽的熱密封樹脂層形成於不透氣基材層上之部分 放大圖； 第7圖係第5圖中壓出機之部分透視圖； 第8圖係依據本發明一實施例之用於眞空包裝之薄膜平面 圖； 第9圖係依據本發明另一實施例之用於眞空包裝之薄膜平 面圖；以及 第10圖依據本發明又一實施例之眞空包裝袋之透視圖。 【圖號説明】 10 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 裝---------訂-------- (請先閲讀背面之注意事項再填寫本頁各攔) 凸出 物； 530001
五、發明説明（8 ) 1 1 0主體 1 1 3薄膜層 116突出物 1 層壓薄片 3，壓力滾筒 10不透氣基材層 2 1溝槽 32 噴嘴 5 1 第一薄片 111薄片 1 14薄膜層 1 20密封部 2 擠壓頭 4 繩索元件 20 冷卻滾筒 3〇 壓出機 4〇薄膜 52第二薄片 1 12薄片 115導槽 1 3 0未封口部 壓力滾筒 突出物 層壓滾筒 噴嘴元件 眞空包裝袋 3 5 20 3 1 50 【較佳具體實施例之詳細説明】 第5圖所示為依據本發明之實施例，將具有突出物 和=導槽的熱密封樹脂層形成於不透氣基材層上。構成 層壓單元的層壓滾筒2〇，和冷卻滾筒2〇之間具有適當間 距，使得融熔壓出的熱密封樹脂層冷卻時黏在不透氣基材 層上。層壓滾筒和冷卻滾筒的材料，僅用於説明而非限於 鋼和橡皮。層壓滾筒和冷卻滾筒間的距離視需要地依照眞 主包裝薄膜之規格（如厚度）來控制，較佳為將冷卻滾筒的 Μ度控制於-1 5至_ 1 〇 °C之間，以冷卻融熔壓出的樹脂。而 冷卻滾筒的溫度也可視層壓的情形作調整。 典型上，冷卻滚筒的直徑較層壓滾筒大，例如冷卻滚 筒的直徑約在層壓滾筒直徑的1 . 5至3倍，此範圍僅用於説 明而非限制冷卻滾筒的直徑大小。 裝---------訂---------AWI (請先閲讀背面之注意事項再填寫本頁各襴) 11 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公爱） 530001 A7 B7 五、發明説明（9 ) 、以一輸入裝置（未顯示於第5圖）將不透氣基材層1〇輸 卻滾筒20和層壓滾筒20,間之間隙，不透氣基材包括 ^酉曰、聚醯胺和乙烯-乙烯醇共聚物，較佳為當處於後續 眞二包裝製程之熱處理時，可以維持原有機械性質的材 料。 熱密封樹脂通常由熱塑性樹脂所製造。當易腐爛產品 裝進本發明之層壓薄膜所製造之眞空包裝袋並將袋内空氣 $出之後，加熱兩薄片的熱密封樹脂層使其互相接觸並緊 密黏結，以防止環境中的空氣進入袋中。熱密封樹脂較佳 為由聚乙晞製造，以適於保存食物並對人體無害。 在第5圖中，壓出機30置於適當位置，以使輸入冷卻 滾同2 0和層壓滾同2 0 ’間之間隙的壓出熱密封樹脂，於基 材層上被壓成一層融熔壓出的熱密封樹脂。熱密封樹脂係 經由壓出機30的噴嘴元件3丨輸入，同時融熔壓出的熱密 封樹脂的溫度視使用的樹脂種類而定，較佳為介於2〇〇至 25 0°C之間。此外，壓入層壓單元的樹脂量視基材層上所 需之熱密封樹脂層厚度而定。 本發明之複數個溝槽係形成於冷卻滾筒2 〇周圍表面上 預先形成之圖樣上。第5圖所示為本發明實施例之眞空包 裝薄膜，其中突出物被塑造而形成於熱密封樹脂層上，突 出物間之間隙並定義出空氣導槽，而突出物乃相對於預先 形成於冷卻滾筒周圍表面圖樣上、圖示形狀之溝槽。 如上所述，本發明以壓出機融熔壓出的熱密封樹脂乃 是由壓出機的喷嘴輸入’且自然而然地於冷卻時，以;人卻 12 本紙張尺度適用中國國家標準（CNS) Α4規格（210X297公釐） -------------·裝---------訂--------— (請先閲讀背面之注意事項再填寫本頁各攔) 530001 A7 B7 五、發明説明（10 ) 滾筒的溝槽塑形。融熔壓出的熱密封樹脂係和基材層一起 輸入具有層壓滾筒和具有形成於預先形成圖樣上之溝槽之 冷卻滾筒的層壓單元，且熱密封樹脂係被塑造而形成複數 個突出物，並於其間定義出排氣導槽，且突出物乃相對於 形成於冷卻滾筒周圍表面上之溝槽，而製作出本發明之眞 空包裝薄膜40。其中溝槽的圖樣可製成各種所需的形狀， 像是所需之直線或曲線形狀導槽，且圖樣的形狀不受限 制。不像傳統採用後凸出處理的方法，本發明之融熔壓出 熱贫封树脂係以溝槽模塑並冷卻，即使熱密封樹脂層很 薄’其維持眞更的效能亦不差。 第6圖為第5圖之部分放大圖，顯示於不透氣基材層上 形成具有突出物和排氣導槽之熱密封樹脂層。第7圖係第5 圖中壓出機之部分透視圖，如第7圖所示，壓出之熱密封 樹脂係由噴嘴元件3 1之噴嘴3 2輸入層壓單元。 由第5圖至第7圖所示，基材1〇輸入構成層壓單元的 冷卻滾筒20和層壓滾筒20’間之間隙，同時複數個溝槽2ι 預先形成於冷卻滾筒20周圍表面上之圖樣中，依第5圖所 示之實施例，每-溝槽係以不規則圖樣形成於冷卻滚筒2〇 周圍表面上，以使每一溝槽與鄰近溝槽相對稱。 另外，壓出機30係位於具有預先形成圖樣之溝槽21 之冷卻滾筒20和層壓滾筒20,之間，且由壓出機3〇之喷嘴 32壓出之熱密封樹脂與基材1〇被構成層壓單元的冷卻滾 筒20和層壓滾筒2G’模壓，而㈣成於眞空包裝薄論上 表面之熱密封樹脂層上，形成相對於冷卻滾筒2〇之溝槽之 裳 訂----- (請先閲讀背面之注意事項再填寫本頁各襴j
It. 13
五、發明説明（11 ) ^出物’同時排氣導槽亦形成於熱密封樹脂層上，冷卻滚 同2 0之溝槽2 1形成之突出物之間。 *本發月之導;if可形成為複數個條紋或交叉條紋縱向的 在薄膜上延伸，此條紋或叉叉條紋形狀的導槽僅用於説明 而非限制導槽的形狀。因此，任何形狀的導槽皆可使用於 本發明之眞空包裝袋。 〜至於第5和6圖，溝槽係以不規則圖樣預先形成於冷卻 滾筒周圍表面上，且用以於熱密封樹脂層上形成複數個突 出物，並於其中定義用以移出空氣之導槽。因此，本發明 中導槽的形狀係由冷卻滾筒上的圖樣所決定。另一方面， 可使用具有不規則圖樣突出物的冷卻滾筒，以得到具有不 規則圖樣之導槽。 第8圖所示為本發明一實施例之眞空包裝薄膜之平面 圖其中薄膜上複數個具不規則圖樣的突出物，以及形成 於突出物間的間隔之導槽皆縱向延伸著。因此，袋内殘存 的空氣便可在抽出空氣時，沿著導槽被抽出。 接著弟9圖係依據本發明另一實施例之用於眞空包裝 之薄膜平面圖，本實施例之複數個溝槽係以一波浪圖樣形 成於冷卻滾筒周園表面上，故突出物間之間隙所定義之導 槽亦呈波浪圖樣形狀。 同時’形成於層壓薄膜40上熱密封樹脂層之每一突出 物的厚度係由形成於冷卻滾筒2〇上溝槽2 1的深度所決 定，且導槽的寬度係由溝槽21間的間隙所決定。所以，由 突出物間之間隙所定義之排氣導槽的形狀、寬度和厚度， 14 本紙張尺度適用中國國家標準（CNS)A4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁各攔) 裝 530001 五、發明説明（12 ) =據層壓薄膜的用途來改變，以㈣冷卻滾筒上溝槽的 在具有此類導槽的熱密封樹脂層上，通常每一個導槽 =㈣於40至1〇〇微米之間，每一突出物和基材“ 厚度/刀別约介於150至3〇〇微米和3〇至2〇〇微米之間。不 過，上述導槽、突出物和基材層之尺寸僅用於説明，而非 限制其尺寸大小。 非 々本發明之基材層可具有一層、兩層或更多層，當使用 =層結構的基材層時，吾人應當瞭_其總厚度亦同時調 整至基材層之容許範園内。 第1G圖所示為使用本發明之薄膜所製作之眞空包裝 衣：其中呉2包裝袋50係由相互重疊之第一薄片5ι和第 二薄片52所構成，且導槽係形成於第-薄片51和第二薄 =52中任 <上。此時’任—薄片之熱密封樹脂層和基材 層通常是由與另-薄片相同的材料所製成，但也可以是不 同材料。熱密封樹脂層是作為内層，而基材層作為外層。 此外，將第—和第：薄片的底邊、左邊和右邊邊緣互相黏 結’以形成用以容納待眞空包裝產品之空間。若使用不具 導槽n薄片厚度約介於5()至15()微米之間。在第Μ 圖中，預先決定好圖樣之導槽係形成於第一薄片和第二薄 片任（上’但吾人應當瞭解到’形成有預先決定好圖樣 《導槽之薄膜，亦可同時使用於本發明眞空包裝袋之 薄片和第二薄片上。此外’本發明之具導槽層壓薄膜亦可 用來製作各種樣式的眞空包裝袋。 ‘裝---------訂---------_! (請先閲讀背面之注意事項再填寫本頁各阈〕 、 &張尺度家標準（CNS) Α4規格 530001 A7 ------ —_ B7 五、發明説明（13 ) 經由下述實施例之説明將可使本發明之内容更為容易 瞭解’但非用以限制本發明之範轉。 實施例1 將一寬度1200毫米、厚度75微米的聚醯胺基材層， 以80公尺/分鐘的速度輸入層壓單元，如第$圖所示。鋼製 之層壓浪同和冷卻滾筒直徑分別為25〇φ和5〇〇φ，且冷 卻/袞筒上每一溝槽的深度為〇 · 8毫米。層壓滚筒和冷卻滚 琦間之間隔為1 〇 〇微米，且壓出機係位於層壓滾筒和冷卻 /袞请間之間隙周圍，以由壓出機之喷嘴將2 2 〇。〇融溶壓出 之聚乙埽樹脂（CA-1 10, SK公司製造）輸入層壓單元，製 造眞空包裝薄膜。此時，冷卻滾筒的溫度為_丨。如此 製造出之眞空包裝薄膜包含厚度75微米之基材層，厚度 250微米之突出物，以及深度25微米之導槽作為第一薄 片。第二薄片亦以與第一薄片相同的步驟製作，並與第一 薄片結合以製成3〇〇x4 〇〇毫米的眞空包裝袋。此時，第二 薄片沒有導槽，且其基材層和熱密封樹脂層厚度分別為75 微米和25微米。將樣品裝進眞空包裝袋，並以眞空包裝機 (商品名稱：Foodsaver 55 0)緊密地眞空包裝起來，然後 將100個以此法包裝之樣品測試1〇〇小時後，計算沒有維 持在眞空狀態的袋子數目。其結果列於下表1。 -比較例1 以與實施例1相同之程序進行市售Ti〗ia公司製造之 Foodsaver^眞空包裝袋之效能測試，其結果列於下表1。 选較例2 t氏張尺度適用中國國家標準（CNS) A4規格（210X297公f) " '—— ---------、訂---------I (請先閱讀背面之注意事項再填寫本頁各欄) 530001 五、發明説明（14 以與實施⑷相同之程序 & 製造之MAGIC VAC眞空包裝公司 下表1。 、 农效旎測試，其結果列於 ;又有維持眞2之袋數 支 1 實施例 比較例1
0^--L 比較例2
力的看出’以在延長週期維持眞空狀態能 ==發明實施例1之眞空包裝袋遠優於傳統 上之應用 依上述本發明製造眞空包裝袋之方法，當將熱密封樹 月曰層壓於不透氣層上時，可自然地以冷卻滾筒上之溝槽於 熱密封樹脂層上形成突出物和導槽。因此，本方法由於其 不需另外使用㈣凸出物的技巧來形&空氣導槽，故此方 法較為簡單，同時因不需支出塑造凸出物之人力成本，故 也更為經濟。同時，在設計冷卻滾筒的溝槽圖樣時，具有 相當大的自由度，使得各式各樣的空氣導槽得以形成，且 控制空氣導槽間的間距更為容易，與傳統技術相比可增加 約5 0 %的生產量。 本發明已以説明模式作了上述之描述，吾人應當瞭解 到上述使用之術語僅為説明之便，而非侷限本發明之範 疇。依照前述説明對本發明所做之修改或變換都是有可能 17 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） _(請先閲讀背面之注意事項再填寫本頁各鬭) 丨#裝 填寫本t -----訂---------1 530001 A7 B7 五、發明説明（15 ) 的。因此，在以下附加之申請專利範圍内，本發明仍得以 前述描述外之方法來實施。 (請先閲讀背面之注意事項苒填寫本頁各攔) 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐）

Claims (1)

  1. 申清專利範圍 1.-種用於眞空包裝之具空氣導槽薄膜之 包含一步騾為提供一不泰夯 万决， 至一層壓單元，該層壓單元係由-層壓滾筒和：:： 2所=，用以將該熱密封樹脂層成型於該不軸 :.，：、中，孩熱密封樹脂層係以下列方式塑造 將複數個突出物形成於該熱密封樹脂層上以定義 ==槽，且該等突出物係對應於預先形成於該冷卻 來同周圍表面圖樣之複數個溝槽。 其好2//請專利範圍第1韻述之方法，其中該不透氣 基材層係選自下列材料群組所製成：聚睦胺、聚酉旨、及乙 埽-乙烯醇共聚物。 3·如申請專利範圍第Η所述之方法，其中該熱密封 樹脂層係由聚乙缔所製造。 4·如申請專利範圍第丨項所述之方法，其中該冷卻滾 筒《該等溝槽係以不規則圖樣形成於該冷卻滾筒周圍表面 上0 5 ·如申凊專利範圍第丨項所述之方法，其中該冷卻滚 筒之該等溝槽係以波形圖樣形成於該冷卻滾筒周圍表面 上0 6.如申請專利範圍第1項所述之方法，其中該冷卻滾 筒之該等溝槽係以條紋圖樣形成於該冷卻滾筒周圍表面 上0 7 ·如申請專利範圍第2項所述之方法，其中該不透氣 基材層係由單層、雙層、或多層所構成。 19 本紙張尺度適用中國國家標準（CNS) Α4規格（210X297公复丁 (請先閲讀背面之注意事項再填寫本頁各棚) 裝 -----訂-------- 530001 A8 B8 C8 D8 六、申請賴範目 ~ 8·種眞立包裝‘，包含互相重疊之第一薄片與第二 薄片，母薄片皆由一層壓薄膜所組成，具有一不透氣基 材層作為外層、以及一熱密封樹脂層作為内層，將該第一 薄片與該第二薄片沿其底邊、左邊和右邊邊緣互相黏結， 以形成用以容納一待眞空包裝產品之空間，其中該第一薄 片與該第二薄片至少其中之一為依據申請專利範圍第i項 所述之方法所製作而成之眞空包裝薄膜。 20 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） -------------丨裝---------訂--------線I (請先閱讀背面之注意事項再填寫本頁各攔)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090305861A1 (en) * 1997-06-19 2009-12-10 Weder Donald E Method for making distorted fragments
AU2002234998B2 (en) * 2001-02-21 2005-07-28 Tilia International, Inc. Method for preparing air channel-equipped film for use in vacuum package
US6991109B1 (en) 2001-04-17 2006-01-31 Foodfresh Technologies Llc Vacuum sealable bag apparatus and method
US7270238B2 (en) * 2001-04-17 2007-09-18 Foodfresh Technologies, Llc Vacuum sealable bag apparatus and method
US6799680B2 (en) * 2002-04-05 2004-10-05 The Holmes Group, Inc. Vacuum sealed containers
WO2003101705A1 (en) * 2002-05-30 2003-12-11 Flaem Nuova S.P.A. Method of forming film for the construction of bags for vacuum packaging of products
WO2005016774A1 (en) * 2003-08-14 2005-02-24 Wan Hyuk Yoon Film with different heght of protuberances, manufacturing method and vacuum bag using thereof
US20050220942A1 (en) * 2004-03-15 2005-10-06 Hongyu Wu Easy to peal vacuum packaging bags
US20050238263A1 (en) * 2004-04-22 2005-10-27 Ping Lau K Vacuum sealing bag
US7938581B2 (en) * 2004-04-22 2011-05-10 Lau Kong Ping Vacuum sealing bag
KR20050106536A (ko) * 2004-05-04 2005-11-10 바프렉스 주식회사 진공 포장용 다층 필름 제조 방법 및 이 방법에 의해제조된 진공 포장용 다층 필름
US7726880B2 (en) * 2004-06-29 2010-06-01 The Glad Products Company Flexible storage bag
US8419279B2 (en) * 2004-06-29 2013-04-16 The Glad Products Company Flexible storage bag
US7534039B2 (en) * 2004-07-22 2009-05-19 Sunbeam Products, Inc. Vacuum packaging films patterned with protruding cavernous structures
US20070172157A1 (en) * 2004-07-23 2007-07-26 Alcoa Inc. Polymeric package with resealable closure and valve and methods relating thereto
US20070092167A1 (en) * 2005-10-24 2007-04-26 Paul Tilman Polymeric Package With Resealable Closure And Valve, And Methods
US7290660B2 (en) * 2004-07-23 2007-11-06 Tilman Paul A Storage system having a disposable vacuum bag
US20060072860A1 (en) * 2004-09-17 2006-04-06 Hongyu Wu Multi-layer film for forming a vacuum packaging bag and method of manufacture
US7972064B2 (en) 2004-12-22 2011-07-05 Cti Industries Corporation One way valve and container
US7597479B2 (en) * 2005-01-20 2009-10-06 The Glad Products Company Storage bag with fluid separator
US20080256901A1 (en) * 2005-10-24 2008-10-23 Reynolds Foil Inc, D/B/A Reynolds Consumer Products Company Polymeric package with resealable closure and valve, and methods
JP2007166299A (ja) * 2005-12-14 2007-06-28 Sony Corp 固体撮像素子、色分解撮像光学系及び撮像装置
US20070297701A1 (en) * 2006-01-19 2007-12-27 Tiger Medical Products (Us), Inc. Pill crusher pouch for use with a pill crusher
US7594372B2 (en) * 2006-03-14 2009-09-29 Scholle Corporation Flexible container forming apparatus having integrated web surface deformation
US20070217718A1 (en) * 2006-03-14 2007-09-20 Kenneth Micnerski Collapsible bag for dispensing liquids and method
AU2007284251A1 (en) * 2006-08-07 2008-02-21 The Glad Products Company Vacuum storage bag
AT503972B1 (de) * 2006-08-08 2010-01-15 Unterland Flexible Packaging G Streckbare oder gestreckte kunststofffolie und verfahren zu deren herstellung
KR100755925B1 (ko) * 2006-08-21 2007-09-06 주식회사 락앤락 공기 배출용 유로를 갖는 진공포장용 필름의 제조방법 및상기 필름을 사용한 진공 포장용 백의 제조방법
US7857514B2 (en) 2006-12-12 2010-12-28 Reynolds Foil Inc. Resealable closures, polymeric packages and systems and methods relating thereto
SG178731A1 (en) * 2007-01-30 2012-03-29 Advanced Tech Materials Prevention of liner choke-off in liner-based pressure dispensation system
US7886412B2 (en) 2007-03-16 2011-02-15 S.C. Johnson Home Storage, Inc. Pouch and airtight resealable closure mechanism therefor
US7784160B2 (en) 2007-03-16 2010-08-31 S.C. Johnson & Son, Inc. Pouch and airtight resealable closure mechanism therefor
US7967509B2 (en) 2007-06-15 2011-06-28 S.C. Johnson & Son, Inc. Pouch with a valve
US7874731B2 (en) 2007-06-15 2011-01-25 S.C. Johnson Home Storage, Inc. Valve for a recloseable container
US7857515B2 (en) 2007-06-15 2010-12-28 S.C. Johnson Home Storage, Inc. Airtight closure mechanism for a reclosable pouch
US7887238B2 (en) 2007-06-15 2011-02-15 S.C. Johnson Home Storage, Inc. Flow channels for a pouch
US7946766B2 (en) 2007-06-15 2011-05-24 S.C. Johnson & Son, Inc. Offset closure mechanism for a reclosable pouch
WO2009012066A2 (en) * 2007-07-17 2009-01-22 The Glad Products Company Storage bag
WO2009014879A1 (en) * 2007-07-24 2009-01-29 The Glad Products Company Storage bag
EP2149447A1 (de) * 2008-07-29 2010-02-03 Alcan Technology & Management Ltd. Verfahren zur Herstellung einer Materialbahn mit Oberflächenstruktur
US8197138B2 (en) * 2008-08-12 2012-06-12 S.C. Johnson & Son, Inc. Evacuable container and evacuation strip therefor
US20100098354A1 (en) * 2008-10-20 2010-04-22 Fraser Robert W Bag and Methods of Making the Same
US9016945B2 (en) * 2008-10-20 2015-04-28 The Glad Products Company Bag and method of making the same
CN102271893A (zh) * 2008-12-31 2011-12-07 3M创新有限公司 共挤出模头、使用该模头的挤出方法以及由其制成的挤出制品
CN104816877B (zh) 2009-07-09 2018-02-02 恩特格里斯公司 基于衬里的存储系统和输送材料的方法
WO2011129758A1 (en) * 2010-04-15 2011-10-20 Tetra Laval Holdings & Finance S.A. A laminating roller, a method for providing a packaging laminate, and a packaging laminate
US8397958B2 (en) 2010-08-05 2013-03-19 Ds Smith Plastics Limited Closure valve assembly for a container
WO2012071370A2 (en) 2010-11-23 2012-05-31 Advanced Technology Materials, Inc. Liner-based dispenser
US20120128836A1 (en) * 2010-11-23 2012-05-24 Flavorseal Llc Pre-coated seasoning bags
BR112013022316A2 (pt) 2011-03-01 2017-05-30 Advanced Tech Materials sistema baseado em revestimento interno, e, método para prover um sistema baseado em revestimento interno
SG11201400066SA (en) 2011-08-22 2014-03-28 Advanced Tech Materials Substantially rigid collapsible container with fold pattern
US9695985B2 (en) 2012-02-24 2017-07-04 Entegris, Inc. Fluid delivery system and method
JP2015531725A (ja) 2012-08-23 2015-11-05 ウォータービュー・イノベーション・エルエルシーＷａｔｅｒｖｉｅｗ Ｉｎｎｏｖａｔｉｏｎ，Ｌｌｃ 不織繊維材料で形成された再利用可能な多目的袋
US9266647B2 (en) 2012-08-23 2016-02-23 Waterview Innovation, Llc Reusable shopping bag having multiple secondary uses
EP3079867B1 (en) 2013-12-12 2018-05-30 3M Innovative Properties Company Method of making polymeric multilayer films
CN105980643B (zh) * 2014-02-04 2020-03-27 古普里特·辛格·桑德哈 具有防滑性能的合成纤维织物及其制造方法
US20170094995A1 (en) 2015-09-21 2017-04-06 Flavorseal Coated packaging products, systems and methods
CN112895371A (zh) * 2018-08-09 2021-06-04 桐乡市凯瑞包装材料有限公司 一种多用途易降解改良型收纳储物袋的制作方法
WO2023283653A1 (en) * 2021-07-09 2023-01-12 OAS Design Group, Inc. Continuous process for forming domed paper and structures
WO2023152647A1 (en) 2022-02-09 2023-08-17 Cryovac, Llc Multilayer film, process of making the same, vacuum package and process of making said package

Family Cites Families (175)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US474702A (en) * 1892-05-10 James e
US27447A (en) * 1860-03-13 Chain for timbee-behdiug machines
US274447A (en) 1883-03-20 William-kentish
NL22408C (zh) 1927-06-02
US2085766A (en) 1934-09-29 1937-07-06 Potdevin Machine Co Method of making bags and the like
US2105376A (en) 1936-12-18 1938-01-11 Chase Bag Company Valve bag
US2429482A (en) 1939-04-06 1947-10-21 Munters Carl Georg Method and means for the production of foil material
US2265075A (en) 1939-12-06 1941-12-02 Thomas M Royal & Company Method of making bags
US2387812A (en) 1941-12-18 1945-10-30 Stokes & Smith Co System of producing evacuated packages
US2480316A (en) 1944-11-11 1949-08-30 Mishawaka Rubber & Woolen Mfg Method of making laminated cushion material
US2609314A (en) 1946-10-30 1952-09-02 Glenn L Martin Co Machine for making honeycomb core material
US2633442A (en) 1949-03-08 1953-03-31 Albert E Caldwell Method of making tufted material
US2642372A (en) 1950-02-02 1953-06-16 Chittick Charles Yardley Flexible corrugated sheet material and method of fabricating same
US2778173A (en) * 1950-11-29 1957-01-22 Wilts United Dairies Ltd Method of producing airtight packages
US2670501A (en) 1951-08-24 1954-03-02 Us Rubber Co Method of forming plastic material
US2607712A (en) 1952-01-28 1952-08-19 Frank W Egan & Company Extrusion coating machine
US2772712A (en) 1952-03-14 1956-12-04 Flexigrip Inc Actuator for zippers and pouch embodying the same
US2789609A (en) 1952-03-14 1957-04-23 Flexigrip Inc Actuator for zippers and pouch embodying the same
GB719152A (en) 1952-04-07 1954-11-24 Wilts United Dairies Ltd Improvements in the production of airtight packages
US2776452A (en) 1952-09-03 1957-01-08 Chavannes Ind Synthetics Inc Apparatus for embossing thermoplastic film
US2759866A (en) 1952-12-17 1956-08-21 Gen Tire & Rubber Co Method of making wall covering
US2690206A (en) 1953-03-23 1954-09-28 Marathon Corp Extrusion coating machine
US2695741A (en) 1953-06-16 1954-11-30 Stephen L Haley Air evacuator for plastic bags
US2821338A (en) 1954-10-21 1958-01-28 Melvin R Metzger Valve-equipped container
US2858247A (en) 1955-08-04 1958-10-28 Swart Dev Company De Panel material
US2916411A (en) 1955-11-03 1959-12-08 Fiammiferi Ed Affini Spa Fab Composite packing paper
US2856323A (en) 1955-11-09 1958-10-14 Jack C Gordon Indented resilient matted fibrous pad
US3077428A (en) 1956-06-29 1963-02-12 Union Carbide Corp Heat sealable polyethylene laminate and method of making same
US2913030A (en) 1956-10-22 1959-11-17 Arnold J Fisher Moisture-free bag
NL275557A (zh) 1957-12-23
US2960144A (en) 1958-05-21 1960-11-15 Edwards Eng Corp Corrugating machines
US3023231A (en) * 1958-11-28 1962-02-27 Phillips Petroleum Co Production of calcium petroleum sulfonates
US3142599A (en) * 1959-11-27 1964-07-28 Sealed Air Corp Method for making laminated cushioning material
US3102676A (en) 1960-02-16 1963-09-03 Montedison Spa Self-closing containers
US3060985A (en) 1960-08-05 1962-10-30 John R Vance Bag closure
US3098563A (en) 1960-10-03 1963-07-23 Hugh B Skees Inflatable heat insulating material
US3149772A (en) 1960-12-07 1964-09-22 Technipak Proprietary Ltd Self sealing sachets or containers
US3113715A (en) 1961-02-03 1963-12-10 Dow Chemical Co Anti-block edge for plastic bags and the like
US3077262A (en) 1961-03-22 1963-02-12 Poly Sil Inc Novel container
US3237644A (en) * 1962-09-07 1966-03-01 Robertshaw Controls Co Rotary valving mechanism
CH385718A (fr) 1961-11-04 1964-12-15 Bodet Jean Procédé et dispositif pour conditionner des articles solides de petit volume, et ensemble obtenu par ce procédé
US3141221A (en) 1962-11-13 1964-07-21 Amtec Inc Closure for flexible bags
US3160323A (en) 1963-04-05 1964-12-08 Leonard R Weisberg Containers with internal, interlocking protrusions
US3135411A (en) 1963-05-09 1964-06-02 Wiley W Osborne Vacuum sealing means
GB1066487A (en) 1963-10-07 1967-04-26 Ici Ltd Vented bags
US3595722A (en) 1964-04-17 1971-07-27 Thiokol Chemical Corp Process for forming a thermoplastic product
US3224574A (en) 1964-06-10 1965-12-21 Scott Paper Co Embossed plastic bag
US3227574A (en) * 1965-05-20 1966-01-04 Textile Rubber & Chem Co Tufted scatter rugs with double coated skid-resistant backing and method of preparing same
US3423231A (en) 1965-05-20 1969-01-21 Ethyl Corp Multilayer polymeric film
US3325084A (en) 1965-10-18 1967-06-13 Ausnit Steven Pressure closable fastener
US3334805A (en) 1965-10-22 1967-08-08 Robert W Halbach Plastic bag closure
US3411698A (en) 1966-09-09 1968-11-19 Reynolds Metals Co Bag-like container means
US3381887A (en) 1967-04-14 1968-05-07 Nat Distillers Chem Corp Sealing patch valve for plastic bags
AT276220B (de) * 1967-05-18 1969-11-25 Natron Papier Ind Ges M B H Verfahren zur Herstellung eines Verpackungsmaterials, insbesondere für Säcke
CH481808A (it) 1968-01-23 1969-11-30 Goglio Spa Luigi Milano Procedimento per imballare prodotti deperibili e contenitore flessibile a valvola per attuare il procedimento
US3516217A (en) 1968-03-07 1970-06-23 Bemis Co Inc Compression packaging
US3595740A (en) 1968-05-08 1971-07-27 Du Pont Hydrolyzed ethylene/vinyl acetate copolymer as oxygen barrier layer
US3533548A (en) 1968-10-17 1970-10-13 Bard Inc C R Method of ascertaining validity of heat seal and product of said method
US3565147A (en) 1968-11-27 1971-02-23 Steven Ausnit Plastic bag having reinforced closure
US3600267A (en) 1969-04-14 1971-08-17 Dow Chemical Co Packaging film
US3575781A (en) 1969-05-16 1971-04-20 Stauffer Hoechst Polymer Corp Plastic film wrapping material
US3809217A (en) 1969-07-22 1974-05-07 Franklin Mint Corp Packaging for flat objects
US3661677A (en) 1969-10-10 1972-05-09 Allied Chem Post-heat treatment for polyvinylidene chloride-coated film
CA984346A (en) 1971-03-24 1976-02-24 Canadian Industries Limited Valve bag
US3785111A (en) 1972-02-04 1974-01-15 Schneider W Method of forming containers and packages
US3908070A (en) 1972-04-24 1975-09-23 Dow Chemical Co Multilayer thermoplastic barrier structure
IT971505B (it) 1972-12-04 1974-05-10 Goglio L Valvola di degasamento per conte nitori flessibili a chiusura erme tica e contenitore corredato della valvola
US4098404A (en) 1973-02-23 1978-07-04 Sonoco Products Company Vacuum package with flexible end
GB1457429A (en) 1973-07-30 1976-12-01 British Visqueen Ltd Vented bags
US3895153A (en) 1973-10-05 1975-07-15 Minnesota Mining & Mfg Friction-surface sheet
US3958693A (en) 1975-01-20 1976-05-25 E-Z-Em Company Inc. Vacuum X-ray envelope
JPS5159593A (en) 1974-11-21 1976-05-24 Furukawa Seisakusho Kk Shinkuhosohoho oyobisono shinkuhosoki
US4105491A (en) 1975-02-21 1978-08-08 Mobil Oil Corporation Process and apparatus for the manufacture of embossed film laminations
US3997383A (en) 1975-03-10 1976-12-14 W. R. Grace & Co. Cross-linked amide/olefin polymeric laminates
US3980226A (en) 1975-05-05 1976-09-14 Franz Charles F Evacuateable bag
US4018253A (en) 1975-10-09 1977-04-19 Seth Ian Kaufman Home vacuum apparatus for freezer bags
US3998499A (en) 1975-12-18 1976-12-21 Forniture Industriali Padova - S.P.A. Steel bearings with polychloroprene and fluorocarbon resin
US4340558A (en) * 1976-05-05 1982-07-20 Colgate-Palmolive Company Scrim reinforced plastic film
US4132347A (en) * 1976-07-07 1979-01-02 Showa Seitai Kogyo Kaisha Ltd. Moisture proof bags provided with blow-in ports and method of manufacturing the same
US4066167A (en) 1976-07-08 1978-01-03 Keebler Company Recloseable package
IT1067343B (it) 1976-11-19 1985-03-16 Bernardo P Di Metodo e dispositivo per il confezionamento sottovuoto di prodotti
FR2409205A2 (fr) 1977-11-17 1979-06-15 Est Imprimerie Papeterie Valve de desaeration pour l'ensachage de produits pulverulents
US4155453A (en) 1978-02-27 1979-05-22 Ono Dan D Inflatable grip container
US4212337A (en) 1978-03-31 1980-07-15 Union Carbide Corporation Closure fastening device
US4179862A (en) 1978-06-19 1979-12-25 Inauen Maschinen Ag Vacuum packing machine with bag end retractor
AU533944B2 (en) 1978-09-07 1983-12-22 Matburn (Holdings) Ltd. Closure for colostomy bag
US4186786A (en) 1978-09-29 1980-02-05 Union Carbide Corporation Colored interlocking closure strips for a container
JPS592655Y2 (ja) 1979-08-10 1984-01-25 シ−アイ化成株式会社 ゴム配合用カ−ボン体
JPS6051438B2 (ja) 1979-12-21 1985-11-13 三井化学株式会社 ラミネ−ト物の製造方法及びそれに用いる押出用ダイ
US4372921A (en) 1980-01-28 1983-02-08 Sanderson Roger S Sterilized storage container
US4295566A (en) 1980-05-07 1981-10-20 Becton, Dickinson And Company Air-evacuated package with vacuum integrity indicator means
US4407879A (en) * 1981-08-07 1983-10-04 Northern Petrochemical Company Method of producing a textured film
FR2512424A1 (fr) 1981-09-10 1983-03-11 Collet Cafes Sachet d'emballage sous vide
GB2152897B (en) 1984-01-19 1987-10-21 Grace W R & Co Heat shrink packaging
US4622036A (en) * 1982-04-05 1986-11-11 Ethyl Corporation Porous film and absorptive structure
US4583347A (en) 1982-10-07 1986-04-22 W. R. Grace & Co., Cryovac Div. Vacuum packaging apparatus and process
JPS5998822A (ja) 1982-11-12 1984-06-07 Sanyo Kokusaku Pulp Co Ltd ポリウレタン系樹脂フィルムの製造方法
FR2539709A1 (fr) 1983-01-25 1984-07-27 Fafournoux Bernard Sac a vide preetabli pour conservation de produits divers
US4576285A (en) 1983-05-20 1986-03-18 Fres-Co System Usa, Inc. Sealed flexible container with non-destructive peelable opening and apparatus and method for forming same
US4747702A (en) 1983-06-30 1988-05-31 First Brands Corporation Interlocking closure device having controlled separation and improved ease of occlusion
US4917506A (en) * 1983-06-30 1990-04-17 First Brands Corporation Interlocking closure device having controlled separation and improved ease of occlusion
US4551379A (en) 1983-08-31 1985-11-05 Kerr Stanley R Inflatable packaging material
NZ209507A (en) 1983-10-06 1986-07-11 Canadian Ind Thermoplastic valve bag:perforated outer wall with mesh inner liner
CA1295582C (en) * 1983-10-17 1992-02-11 Debra Cheryl Boone Conduit member for collapsible container
US4532652A (en) 1983-11-16 1985-07-30 Mobil Oil Corporation Plastic bag with air exhaustion valve
US4705174A (en) 1984-02-29 1987-11-10 Fres-Co System Usa, Inc. Sealed flexible container with non-destructive peelable opening
US4669124A (en) 1984-05-23 1987-05-26 Yoken Co., Ltd. Beverage container with tamperproof screwthread cap
IT1176180B (it) 1984-05-23 1987-08-18 Eurodomestici Ind Riunite Metodo per il confezionamento sotto vuoto di materiali finemente suddivisi e contenitore per l'attuazione del metodo
US4579756A (en) 1984-08-13 1986-04-01 Edgel Rex D Insulation material with vacuum compartments
CA1253592A (en) * 1985-02-15 1989-05-02 Tatsuya Tsuda Heating apparatus with humidity sensor
US4812056A (en) * 1985-03-25 1989-03-14 The Dow Chemical Company Reclosable, flexible container having an externally operated fastener
US4756422A (en) 1985-09-23 1988-07-12 Kristen Hanns J Plastic bag for vacuum sealing
USRE34929E (en) * 1985-09-23 1995-05-09 Tilia, Inc. Plastic bag for vacuum sealing
US4658434A (en) 1986-05-29 1987-04-14 Grain Security Foundation Ltd. Laminates and laminated articles
US4841603A (en) * 1986-12-22 1989-06-27 Minigrip, Inc. Reclosable seams for fluid-tight applications
JPH0745181B2 (ja) * 1987-04-01 1995-05-17 富士写真フイルム株式会社 ラミネ−ト物の製造方法
US4712574A (en) 1987-04-23 1987-12-15 C. H. Perrott, Inc. Vacuum-breaking valve for pressurized fluid lines
US4834554A (en) * 1987-11-16 1989-05-30 J. C. Brock Corp. Plastic bag with integral venting structure
CA1330285C (en) * 1987-12-22 1994-06-21 Geoffrey S. Martin Triple lumen catheter
GB2218669B (en) * 1988-05-20 1992-07-08 Grace W R & Co Multi-layer packaging film and process
US4892414A (en) * 1988-07-05 1990-01-09 Minigrip, Inc. Bags with reclosable plastic fastener having automatic sealing gasket means
US5097956A (en) * 1988-09-07 1992-03-24 Paramount Packaging Corporation Vacuum package with smooth surface and method of making same
US4903718A (en) * 1988-10-19 1990-02-27 Ipco Corporation Flexible ultrasonic cleaning bag
US4913561A (en) * 1988-11-15 1990-04-03 Fres-Co System Usa, Inc. Gussetted flexible package with presealed portions and method of making the same
US4890637A (en) * 1988-12-12 1990-01-02 Flavorcoffee Co. Inc. One way valve
CA2025977C (en) * 1990-09-21 1996-01-23 Charles E. Brinley Process for preparing embossed, coated paper
US4906108A (en) * 1989-03-08 1990-03-06 Mobil Oil Corporation Corrugated sticky tape bag tie closure
US5006056A (en) * 1989-09-01 1991-04-09 The Black Clawson Company Film extrusion apparatus including a quickly replaceable chill roll
US5254073A (en) * 1990-04-27 1993-10-19 Kapak Corporation Method of making a vented pouch
US5121590A (en) * 1990-06-04 1992-06-16 Scanlan Gregory P Vacuum packing apparatus
US5080155A (en) * 1990-12-28 1992-01-14 Hooleon Corporation Keyboard enclosure
FI86477C (fi) * 1991-02-28 1992-08-25 Neste Oy Foervarings- och transportfoerpackning av plast foer loespatroner.
DE4112900A1 (de) * 1991-03-22 1992-09-24 Windmoeller & Hoelscher Verfahren zur herstellung eines sacks oder beutels mit in gefuelltem zustand rechteckigem boden und mit einem griffteil und nach diesem verfahren hergestellter sack oder beutel
US5116444A (en) * 1991-05-30 1992-05-26 Sealed Air Corporation Apparatus and method for enhancing lamination of plastic films
JPH0639179Y2 (ja) * 1991-07-05 1994-10-12 株式会社柏原製袋 逆止弁
US5111838A (en) * 1991-11-25 1992-05-12 Shipping Systems, Inc. Dunnage bag air valve and coupling
US5203458A (en) * 1992-03-02 1993-04-20 Quality Containers International, Inc. Cryptoplate disposable surgical garment container
US5402906A (en) * 1992-07-16 1995-04-04 Brown; Richard S. Fresh produce container system
IT231279Y1 (it) * 1993-10-13 1999-08-02 Abate Luigi Elemento tubolare per la formazione di sacchetti per il confezionamento di prodotti sottovuoto
US5397182A (en) * 1993-10-13 1995-03-14 Reynolds Consumer Products Inc. Write-on profile strips for recloseable plastic storage bags
US5480030A (en) * 1993-12-15 1996-01-02 New West Products, Inc. Reusable, evacuable enclosure for storage of clothing and the like
US5445275A (en) * 1994-06-08 1995-08-29 Lazy Pet Products, Inc. Full recovery reduced-volume packaging system
US5592697A (en) * 1995-04-18 1997-01-14 Young; Russell Waterproof pocket
US5874155A (en) * 1995-06-07 1999-02-23 American National Can Company Easy-opening flexible packaging laminates and packaging materials made therefrom
US5709467A (en) * 1996-06-18 1998-01-20 Galliano, Ii; Carol J. Device and apparatus for mixing alginate
ATE209098T1 (de) * 1996-06-26 2001-12-15 Idemitsu Petrochemical Co Verfahren zum musterprägen einer folie und vorrichtung zur musterprägung
US5735395A (en) * 1996-06-28 1998-04-07 Lo; Luke Airtight garment hanging bag
JP3624927B2 (ja) * 1996-10-07 2005-03-02 セイコーエプソン株式会社 インクカートリッジ
US5971613A (en) * 1997-04-11 1999-10-26 Kapak Corp. Bag constructions having inwardly directed side seal portions
JP3001195B2 (ja) * 1997-04-16 2000-01-24 光金属工業株式会社 加熱調理食品の保存法とそれに用いる真空密閉保存容器
US5873217A (en) * 1997-05-09 1999-02-23 Smith; George E. Vacuum sealing methods and apparatus
US5881881A (en) * 1997-06-16 1999-03-16 Carrington; Thomas Evacuateable bag
US5898113A (en) * 1997-07-30 1999-04-27 Bellaire Industries, Inc. Multi-ply material sealed container
US6030652A (en) * 1997-08-05 2000-02-29 Hanus; John Food bag featuring gusset opening, method of making the food bag, and method of using the food bag
US6029810A (en) * 1997-10-17 2000-02-29 Chen; Shu-Ling Dress bag and hanger assembly
US5893822A (en) * 1997-10-22 1999-04-13 Keystone Mfg. Co., Inc. System for vacuum evacuation and sealing of plastic bags
US6059457A (en) * 1998-01-02 2000-05-09 Com-Pac International, Inc. Evacuable storage bag with integral zipper seal
US6045264A (en) * 1998-01-29 2000-04-04 Miniea; Stephen H. Self-sealing, disposable storage bag
USD425786S (en) * 1998-05-04 2000-05-30 Voller Ronald L Multi ply reinforced dunnage bag and valve therefor
US6231234B1 (en) * 1998-05-13 2001-05-15 Tc Manufacturing Co., Inc. One piece snap closure for a plastic bag
US6045006A (en) * 1998-06-02 2000-04-04 The Coca-Cola Company Disposable liquid containing and dispensing package and an apparatus for its manufacture
US6231236B1 (en) * 1998-07-28 2001-05-15 Reynolds Consumer Products, Inc. Resealable package having venting structure and methods
ZA993007B (en) * 1998-08-13 1999-11-08 Barry Light A bag.
US6035969A (en) * 1998-08-25 2000-03-14 Pyle; Gary Lee Grease gun extension coupling device
US6319456B1 (en) * 1998-11-12 2001-11-20 Certainteed Corporation Method for continuous vacuum forming shaped polymeric articles
US6220702B1 (en) * 1998-12-24 2001-04-24 Seiko Epson Corporation Ink bag for ink jet type recording apparatus and package suitable for packing such ink bag
ATE253003T1 (de) * 1999-05-21 2003-11-15 Aracaria Bv Handsaugpumpe
US6202849B1 (en) * 1999-07-07 2001-03-20 David B. Graham Evacuatable rigid storage unit for storing compressible articles therein
US6357915B2 (en) * 1999-08-13 2002-03-19 New West Products, Inc. Storage bag with one-way air valve
US6227706B1 (en) * 2000-06-26 2001-05-08 Thoai S. Tran Two piece, compressible storage satchel for compressible articles
AU2002234998B2 (en) * 2001-02-21 2005-07-28 Tilia International, Inc. Method for preparing air channel-equipped film for use in vacuum package
US20040000503A1 (en) * 2002-06-28 2004-01-01 Shah Ketan N. Recloseable storage bag with porous evacuation portal
US6932509B2 (en) * 2002-06-28 2005-08-23 S. C. Johnson Home Storage, Inc. Recloseable storage bag with secondary closure members
US6983845B2 (en) * 2002-06-28 2006-01-10 S.C. Johnson Home Storage, Inc. Recloseable storage bag with user-deformable air vent
US20040007494A1 (en) * 2002-07-15 2004-01-15 Popeil Ronald M. Apparatus and method to more effectively vacuum package foods and other objects

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US20050143243A1 (en) 2005-06-30
US20030155269A1 (en) 2003-08-21
US20050147774A1 (en) 2005-07-07
EP1412167A1 (en) 2004-04-28
MXPA03007545A (es) 2004-10-15
US20060035046A1 (en) 2006-02-16
CA2443888C (en) 2007-08-14
EP1412167A4 (en) 2007-08-08
US20050147330A1 (en) 2005-07-07
AU2002234998B2 (en) 2005-07-28
US7022058B2 (en) 2006-04-04
CA2443888A1 (en) 2002-09-26
CN1503722A (zh) 2004-06-09
CN100429070C (zh) 2008-10-29
JP2004519356A (ja) 2004-07-02
WO2002074522A1 (en) 2002-09-26

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