201028288 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種紙製器皿，特指於表面以無膠方式 貼合有一種可經由微波高溫加熱而分離之複合薄膜者。> 【先前技術】 紙製器皿係一種以紙層所製成之容器而可用以盛裝食 物，依用途可分為碗、冑、杯或便當盒等等，而為避免該 紙層為食物中的水分或油等等滲透而導致器皿容易破裂而 β *堪使用，紙製器皿皆於紙層上披覆有一聚合物層，據以 達到防水或油滲透之目的。 - 然而，既有之紙製器皿主要有下述之缺點： 1.所使用之聚合物材料不耐高溫（例如聚乙烯ΡΕ)，導 致紙製器里一但進行高溫微波加熱將有該聚合物層受熱軟 化並且釋出有毒物，造成使用者以此類器皿盛裝食物使用 時，該等有毒物質經食用進入而有危害人體健康之缺點。 ⑩ 2.如發明專利公告第1293919號專利案所揭露之内容， 既有之:紙製器m必須在紙層與聚合物層之間彼覆一層黏合 用的架橋劑或黏劑塗層方能使該聚合物層能結合於紙層 上，導致有產品加工過程繁複之缺點。 3_既有之紙製器皿中該聚合物層與紙層之間無法予以 剝離分解，再依其材質分類回收，因此於使用完畢後只能 直接丟棄而致使有環境污染之問題產生。 既有之紙製器皿中另有一種構造係在紙層上不披覆聚 合物層，而係於紙層之中添加防水、防油劑來達到防水防 油之目的者’其雖無上述因披覆聚合物層所衍生製作加工 201028288 繁複之缺點’然而添加防水、防油劑於紙製器皿中將有難 以降解之缺點產生。 【發明内容】 有鑑於上述現有技術之紙製器皿之問題點，本發明藉 由下述手段來解決既有之紙製器皿所具有的聚合物層不耐 高溫、無法與紙層分離以及坡覆加工過程繁複等缺點，為 本發明的目的》 本發明所運用之技術手段在於提供一種具無膠複合薄 ® 膜之紙製器皿，其包含有·· 一紙層’其配合需求成型為適合之容器形狀； 一無膠複合薄膜’其彼覆位於所述紙層上，具有三層 以上的薄膜層結構，其各層之材料可分別選自於由聚酯聚 合物（Polyester)、共聚酯聚合物（c〇_p〇lyester)、聚稀烴樹脂 (Polyolefin)、丙烯酸樹脂（acrylic)或聚乳酸（p〇lylactic扣⑷ 所組成之群組，其中相鄰兩層之材質為不同材料β _ 所述無膠複合薄膜中，自貼覆於紙層之一層起算的奇 數層之材料係乙二醇改性聚乙烯對苯二曱酸酯（pETG)、聚 乳酸（polylactic acid)或熱塑性聚酯彈性體（Therm〇plastic Polyester Elastomer)所組成之群組。 所述無膠複合薄膜中，自貼覆於紙層之一層起算的偶 數層之材料係選自於聚對苯二甲酸乙二醋（ΡΕτ)、聚對苯二 甲酸丁二酯（PBT)、聚乳酸（polylactic acid)或丙烯酸樹脂 (acrylic)所組成之群組。 所述無膠複合薄膜於奇數層及偶數層中添加有可提供 生物降解性或光降解性的有機填充物、光降解塑料或光敏 201028288 劑。 本發明所運用之另-技術手段在於提供—種具無勝複 合薄膜之紙製器皿之製造方法，其步驟包括： 以共擠磨出（C〇_extrusion)方式製備所述無膠複合薄 膜：其中前述各層之原料係分別送入一成型模具並囊流經 同一模頭壓出而構成所述無膠複合薄膜； 提供一所述紙層； 披覆無膠複合薄膜：以真空成型方式披覆無膠複合薄 ❹ 膜於紙層上。 本發明所運用之再-技術手段在於提供—種具無膠複 合薄膜之紙製器皿之分離方法，其步驟包括· 提供一具無勝複合薄膜之紙製器皿； ’以微波方式加㈣述具無膠複合薄膜之紙製器皿； 將無耀·複合薄膜自紙層上制離。 藉由前述技術手段的運用，本發明之優點在於： h無須使用架橋劑或黏劑即可令無膠複合薄膜層披覆 雩於紙層上，製程簡單因而可達到節省工時之目的。 2·使用後可經微波高溫加熱而令無膠複合薄膜與紙層 分離，如此即可依材質分類回收，避免對環境造成負擔， 達到綠色包裝之目的並降低生產成本。 3.所述無膠複合薄膜可使用具生物可分解性的聚乳 酸，或在無膠複合薄膜中添加有有機填充物、光降解塑料 或光敏劑，使該無膠複合薄膜可具生物降解或光降解性。 【實施方式】 參見第-圖所示，本發明所設計具無膠複合薄膜之紙 201028288 製器孤’係包含有一紙層（10)以及一無膠複合薄膜（20)，其 中: ........ 該紙層（ίο)係作為一基層，其可配合使用需求成型為適 合之容器形狀’例如碗盤、杯、或盒狀等，其材料可為使 用甘蔗渣； 該無膠複合薄膜（20)係披覆位於所述紙層（10)之一側 邊’其具有三層以上的薄膜層結構，各層之材料可分別選 自於由聚醋聚合物（p〇lyester)、共聚醋聚合物（Co-❹ P〇lyester)、聚烯烴樹脂（p〇iy〇iefin)、丙浠酸樹脂（acryHc) 或聚乳酸（polylactic acid)所組成之群組，其中相鄰兩層之 材質為不同材料，於本發明的其中一種實施例中，該無膠 複合薄膜（20)係由第一層（21)、第二層（22)以及第三層（23) 所構成之三層結構，其中自貼覆於所述紙層（1〇)之一層起算 為奇數層的第一層（21)以及第三層（23)之材料係選自於乙二 醇改性聚乙烯對苯二甲酸酯（PETG)、熱塑性聚酯彈性體 (Thermoplastic Polyester Elastome)或聚乳酸（polylactic acid) ® 所組成之群組，而為偶數層的第二層（22)之材料係選自於聚 對苯二甲酸乙二酯（PET)、聚對苯二曱酸丁二酯（PBT)、丙 浠_酸樹脂（acrylic)或聚.乳酸（polylactic acid)所組成之群組。 此外，該無膠複合薄膜（20)於各層中可添加有有機填充物、 光降解塑料或光敏劑，據以提供該無膠複合薄膜（20)生物降 解性或光降解性。 進一步參照第二圖所示，本發明具無膠複合薄膜之紙 製器皿的製造方法，其製造步驟包括有： 以共擠壓出（Co-extrusion)方式製備具有三層以上薄嫉 201028288 層結構之無膠複合薄膜（20);請配合參見第三圖所示，於圖 中所示實施例中係製備一具有三層結構之無膠複合薄膜 (20) ’其中構成前述各層（21)(22)(23)之原料係分別進入壓 出機（301)(302)(303)，以壓延（caien(jaring)或流延（cast fiim) 的方式共擠壓出，並經過複數驟冷輪（33)以及一冷卻區（34) 降溫而構成前述實施例所述三層結構之無膠複合薄膜（2〇); 提供一紙層（10)，其可成型為一具特定的器孤形狀； 彼覆無膠複合薄膜（20):以真空成型方式令所述無膠 ® 複合薄膜（20)彼覆成型於所述紙層（10)上，配合參見第四圖 所示，其具體實施方式可採用一真空成型機，該真空成型 機中設置有具有加熱功能的一上成型台（41)以及一下成型台 (42) ’於該下成型台（42)上成型有配合所述紙層（1〇)之外型 的模穴（421) ’而紙層（1〇)係設置於該模穴（421)上，該下成 型台（42)處可產生一真空吸力，上、下成型台（41)(42)之間 係設有張膜夾（43)挾持有該無膠複合薄膜（2〇)，該無膠複合 薄膜（20)受成型台（41)(42)加熱軟化，並且為張膜夾（43)所 ® 樓開而延展且攤平，隨後m膜夾（43)解除挾持作用，該無膠 複合薄膜（20)為下成型台（42)處之真空吸力吸附而平整的黏 附於該紙層（10)的壁面上，待無膠複合薄膜（2〇)降溫後即可 與紙層（10)相互結合。 上述中’較佳之加熱參數為加熱溫度介於3〇〇至7〇〇。〇 之間，而加熱時間為1至5秒。 進一步參見第五圖所示，為本發明之一種具無膠複合 薄膜之紙製器皿的分離步驟流程圖，其分離方法包括有： 提供一具無膠複合薄膜（2〇)之紙製器皿； 201028288 以微波方式加熱所述具無膠複合薄膜（20)之紙製器皿： 該加熱使無膠複合薄膜（20)軟化變形及結晶化，於此狀態下 的無膠複合薄膜（20)係失去與紙層（10)之間的黏附性； 將無膠複合薄膜（20)自紙層（10)上剝離。 上述中，較佳之加熱參數為加熱溫度介於100至300°C 之間，而加熱時間為20至60秒。 【圖式簡單說明】 第一圖為本發明之具無膠複合薄膜之紙製器皿之部分 ® 剖視圖。 第二圖為本發明之具無膠複合薄膜之紙製器皿的製造 方法流程圖。 第三圖為本發明無膠複合薄膜的.製造流程示意圖。 第四圖為本發明將無膠複合薄膜披覆於紙層上之示意 圖。 第五圖為本發明具無膠複合薄膜之紙製器皿的分離方 法流程圖。201028288 VI. Description of the Invention: [Technical Field] The present invention relates to a paper vessel, in particular to a surface of a composite film which can be separated by microwave high-temperature heating without a glue. > [Prior Art] Paper utensils are containers made of paper layers that can be used to hold food, which can be divided into bowls, bowls, cups or lunch boxes according to the use, etc., in order to avoid the paper layer being in food. The penetration of moisture or oil, etc., causes the vessel to be easily broken and the beta can be used. The paper utensils are coated with a polymer layer on the paper layer for the purpose of waterproofing or oil penetration. - However, the existing paper utensils mainly have the following disadvantages: 1. The polymer material used is not resistant to high temperatures (such as polyethylene crucible), resulting in the polymer being heated in the paper machine at high temperature microwave heating. The layer is softened by heat and releases toxic substances, causing the user to enter the food in such a container, and the toxic substances enter the food and have the disadvantages of endangering human health. 10 2. As disclosed in the Patent Publication No. 1293919, the papermaker m must be coated with a bridging agent or an adhesive coating between the paper layer and the polymer layer. The polymer layer can be bonded to the paper layer, resulting in a disadvantage of complicated product processing. 3_ In the existing paperware, the polymer layer and the paper layer cannot be separated and decomposed, and then recycled according to the material. Therefore, it can be directly discarded after use, resulting in environmental pollution. Another structure in the existing paper utensils does not cover the polymer layer on the paper layer, but is added to the paper layer to add water and oil repellent to achieve the purpose of waterproofing and oil proofing. Derived processing of the coated polymer layer 201028288 The complicated shortcomings 'However, the addition of waterproofing and oil repellent will have the disadvantage of being difficult to degrade in paper containers. SUMMARY OF THE INVENTION In view of the above problems of the prior art paper ware, the present invention solves the problem that the polymer layer of the existing paper ware has high temperature resistance, cannot be separated from the paper layer, and is sloped by the following means. Disadvantages of processing, etc., are the object of the present invention. The technical means used in the present invention is to provide a paper-made vessel with a glueless composite thin film, which comprises a paper layer which is shaped to suit the needs. a shape of a container; a non-adhesive composite film which is disposed on the paper layer and has a film structure of three or more layers, and the materials of the respective layers may be selected from the group consisting of polyester polymers (polyesters) and copolyesters. a group consisting of (c〇_p〇lyester), polyolefin (polyolefin), acrylic (acrylic) or polylactic acid (p〇lylactic buckle (4), wherein the materials of the adjacent two layers are different materials β _ In the rubber-free composite film, the material of the odd-numbered layer from one layer of the paper layer is ethylene glycol modified polyethylene terephthalate (pETG), polylactic acid or thermoplastic polyester. Elastomer (Therm〇plastic Polyester Elastomer). In the non-adhesive composite film, the material of the even layer from the one layer of the paper layer is selected from polyethylene terephthalate (ΡΕτ). a group consisting of polybutylene terephthalate (PBT), polylactic acid or acrylic. The non-adhesive composite film is added to the odd and even layers to provide biodegradation. Or organic degradable organic filler, photodegradable plastic or photosensitive 201028288. Another technical means utilized by the present invention is to provide a method for manufacturing a paper vessel having a wink composite film, the steps of which include: The rubber-free composite film is prepared by a C磨_extrusion method: wherein the raw materials of the foregoing layers are respectively fed into a molding die and the capsules are extruded through the same die to form the rubber-free composite film; The paper layer; the non-adhesive composite film: the non-adhesive composite film is coated on the paper layer by vacuum forming. The re-technical method used in the present invention is to provide a rubber-free composite film. The method for separating the paper utensils, the steps comprising: providing a paper vessel with a win-win composite film; 'adding (4) a paper utensil with a rubber-free composite film by microwave method; and placing the non-light composite film on the paper layer By the use of the foregoing technical means, the invention has the advantages that: h, the briquetting-free composite film layer can be coated on the paper layer without using a bridging agent or an adhesive agent, and the process is simple, thereby saving labor time. Purpose 2. After use, it can be heated by microwave high temperature to separate the glue-free composite film from the paper layer, so that it can be recycled according to the material, avoiding the burden on the environment, achieving the purpose of green packaging and reducing the production cost. 3. The glue-free composite film can be used to biodegradable polylactic acid, or to add an organic filler, a photodegradable plastic or a photosensitizer to the glueless composite film, so that the rubber-free composite film can be biodegraded or Photodegradability. [Embodiment] As shown in the figure, the paper 201028288 is designed to have a paper layer (10) and a glueless composite film (20), ... ..... The paper layer ( ίο) is used as a base layer, which can be shaped into a suitable container shape according to the needs of use, such as a dish, a cup, or a box, etc., and the material thereof can be bagasse; The composite film (20) is coated on the side of one of the paper layers (10) and has a film structure of three or more layers, and the materials of the layers may be selected from the group consisting of polyacetate polymers, respectively. a group consisting of Co-❹ P〇lyester, polyolefin resin (p〇iy〇iefin), acrylic acid resin (acryHc) or polylactic acid, of which two adjacent layers The material is different materials. In one embodiment of the present invention, the glueless composite film (20) is composed of a first layer (21), a second layer (22) and a third layer (23). a structure in which a first layer (21) and a portion which are counted as odd layers from one of the layers of the paper layer (1〇) The material of layer (23) is selected from the group consisting of ethylene glycol modified polyethylene terephthalate (PETG), thermoplastic polyester elastomer (Thermoplastic Polyester Elastome) or polylactic acid ® The material of the second layer (22) which is an even layer is selected from polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and acrylic acid (acrylic acid). Or a group consisting of polylactic acid. Further, the non-adhesive composite film (20) may be added with an organic filler, a photodegradable plastic or a photosensitizer in each layer to provide biodegradability or photodegradability of the non-adhesive composite film (20). Referring to the second figure, the manufacturing method of the paper utensil with the glueless composite film of the present invention comprises the following steps: preparing a layer structure of three layers or more with a thin layer of 201028288 by co-extrusion method. The glueless composite film (20); please refer to the third figure, in the embodiment shown in the figure, a rubber-free composite film (20) having a three-layer structure is formed, wherein the foregoing layers (21) are formed ( 22) The raw materials of (23) are respectively introduced into the extruder (301) (302) (303), and are co-extruded by caien (jaring or casting fiim) and passed through a plurality of quenching wheels. (33) and a cooling zone (34) to cool down to form a three-layer structure of the rubber-free composite film (2〇) of the foregoing embodiment; providing a paper layer (10) which can be formed into a specific shape of a machine a non-adhesive composite film (20): the non-adhesive® composite film (20) is overmolded onto the paper layer (10) by vacuum forming, as shown in the fourth figure, the specific implementation thereof The method can adopt a vacuum forming machine, and the vacuum forming machine is provided with a heating function. The molding table (41) and the lower molding table (42) are formed on the lower molding table (42) with a cavity (421) that matches the shape of the paper layer (1) and a paper layer (1) Is disposed on the cavity (421), a vacuum suction is generated at the lower molding table (42), and a film clamp (43) is disposed between the upper and lower molding tables (41) (42). a rubber-free composite film (2〇), which is softened by heating by a forming table (41) (42), and stretched and flattened for the film-folding (43)®, then m film The clamp (43) releases the holding action, and the glue-free composite film (20) is adhered to the wall surface of the paper layer (10) by vacuum suction adsorption at the lower forming table (42), and is to be glue-free composite film (2) 〇) After cooling, it can be combined with the paper layer (10). The above preferred heating parameters are heating temperature between 3〇〇 and 7〇〇. 〇, and heating time is 1 to 5 seconds. FIG. 5 is a flow chart showing a separation step of a paper vessel having a glueless composite film according to the present invention, and the separation method comprises: providing a glueless composite film (2) Paper utensils; 201028288 Microwave heating of the paper-made vessel with the rubber-free composite film (20): The heating softens and crystallizes the rubber-free composite film (20), and the rubber-free composite in this state The film (20) loses adhesion to the paper layer (10); the non-glue composite film (20) is peeled off from the paper layer (10). In the above, the preferred heating parameter is a heating temperature of 100 to 300. Between °C and heating time is 20 to 60 seconds. [Simple description of the drawings] The first figure is a cross-sectional view of a part of a paper utensil with a glueless composite film of the present invention. The second figure is a flow chart of a method for manufacturing a paper-made vessel having a glueless composite film of the present invention. The third figure is a schematic diagram of the manufacturing process of the glueless composite film of the present invention. The fourth figure is a schematic view of the present invention in which a non-adhesive composite film is coated on a paper layer. The fifth figure is a flow chart of the separation method of the paper utensil with the glueless composite film of the present invention.
【主要元件符號說明】(10)紙層(21)第一層 (23)第三層 (33)驟冷輪 (41)上成型台 (20)無膠複合薄膜 (22)第二層 (301)(302)(303)壓出機 (34)冷卻區 (42)下成型台 (43)張膜夾[Description of main component symbols] (10) Paper layer (21) First layer (23) Third layer (33) Quenching wheel (41) Forming table (20) Glue-free composite film (22) Second layer (301 (302) (303) extruder (34) cooling zone (42) under the forming table (43) sheet clamp