TW200835591A - Manufacturing process of composite sheet - Google Patents

Manufacturing process of composite sheet Download PDF

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Publication number
TW200835591A
TW200835591A TW096141905A TW96141905A TW200835591A TW 200835591 A TW200835591 A TW 200835591A TW 096141905 A TW096141905 A TW 096141905A TW 96141905 A TW96141905 A TW 96141905A TW 200835591 A TW200835591 A TW 200835591A
Authority
TW
Taiwan
Prior art keywords
porous film
composite sheet
temperature
heating roller
film
Prior art date
Application number
TW096141905A
Other languages
English (en)
Inventor
Tadayoshi Fujita
Original Assignee
Fuji Pack Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Pack Co Ltd filed Critical Fuji Pack Co Ltd
Publication of TW200835591A publication Critical patent/TW200835591A/zh

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Classifications

    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4895—Solvent bonding, i.e. the surfaces of the parts to be joined being treated with solvents, swelling or softening agents, without adhesives
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • B29C66/73115—Melting point
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • B29C66/91933—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined higher than said fusion temperature
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • B29C66/91935—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined lower than said fusion temperature
    • 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
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/522—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by spraying, e.g. by flame spraying
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
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    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
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    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0065—Permeability to gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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    • B32B2037/1215—Hot-melt adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
    • B32B37/203—One or more of the layers being plastic

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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200835591 九、發明說明 【發明所屬之技術領域】 本發明關於具有透濕性、防水性之複合薄片的製造方 法，更詳細而言，關於以接著劑將具有透濕性的烯烴系多 孔質薄膜與通氣性補強材予以接合所構成之複合薄片的製 造方法。 【先前技術】 以往，這種複合薄片的製造方法，是將配合有無機塡 充劑之聚烯羥薄膜進行單軸或雙軸延伸加以製造，對賦予 有透濕性的烯烴系多孔質薄膜（以下僅稱爲多孔質薄膜） ’在賦予拉裂強度等之目的上，例如將不織布、織布、網 狀物、網、毛氈、紙、布等，藉由以留下非接合部分的方 式予以接著或熔著，來進行接合。 如此所製造之複合薄片被使用於紙尿褲、生理用衛生 棉等的衛生材料，乾燥劑或用後即棄型取暖包等的功能性 包裝材料，用後即棄型雨衣或防塵服等的簡易衣料，住宅 的防水薄片或農業用薄片等的產業資材。特別是建材用防 水 '農業用途、廢棄物處理用途，使用多孔質薄膜之複合 薄片的透濕性、防水性之性能的有用性逐漸被認可，而進 行各種用途的開發。 例如，作爲使用於紙尿褲或生理用衛生棉等的衛生材 料之複合薄片的製造方法，將多孔質薄膜與聚乙烯、聚丙 烯等的不織布作爲通氣性材料，以殘留非接合部分的方式 -4- 200835591 藉由接著加以接合者爲眾所皆知（參照日本專利第 3 3 1 1 95 5號公報）。 且，在作爲建築用薄片材料的製造方法’將多孔質薄 膜與聚乙烯、聚丙烯等的不織布作爲通氣性材料’以殘留 非接合部分的方式藉由接著加以接合者爲眾所皆知（參照 日本專利第273 6773號公報）。 又，作爲用於屋頂或牆壁等的透濕、防水用薄片等之 建材用透濕防水薄片的製造方法’有下述方法，即’與利 用上述接著之接合方法不同，而是藉由熱熔著來將多孔質 薄膜與作爲通氣性補強材之聚烯烴系不織布予以接合者爲 眾所皆知（參照日本特許出願特開平9-2774 1 4號公報、 曰本特開2002-293 3 73號公報）。 且’在接合多孔質薄膜與通氣性補強材來製造複合薄 片之情況’於使用於衛生材料或簡易衣料等的用後即棄用 途時’主要是實施例用熱熔接著劑之接合方法，於使用於 住宅或農業用等的需要耐熱性或耐氣候性、耐久性之用途 時，主要是實施乾層積法之利用具有優良的耐熱性之溶劑 型胺甲酸乙酯系、橡膠系接著劑之接合方法、或利用熔著 之接合方法。 【發明內容】 〔發明所欲解決之課題；1 但’使用於複合薄片之多孔質薄膜，由於是將配合有 無機塡充劑之聚燒經薄膜進行單軸或雙軸延伸加以製造， -5- 200835591 故，即使僅受到60〜7 (TC的熱負荷，主要朝延伸 易產生因收縮所引起之尺寸變化。因此，即使根 將接著劑變更成具有優良耐熱性者，或使用利用 合方法，在複合薄片的最終製品之衛生材料、簡 產業資材等，會有下述問題點產生，即，即使在 搬送中或施工後受到超過6 0〜7 0 °C左右之熱負何 生因多孔質薄膜的收縮所引起之接合部的剝離或 上的皺褶、複合薄片的大幅度翹曲，不僅造成外 品價値降低，並且亦會有損複合薄片所具有之透 水性。 又，主要在產業資材所使用的溶劑型接著劑 優良的耐熱性，但，由於在接著劑的塗佈製程、 ，多量的溶劑會揮發，故，在作業人員的勞動安 並不理想，且關於其對環境污染的危險性、揮發 合物（VOC )的排出抑制問題等，對其減少使用 被討論中。 因此，本發明者們，精心檢討了下述的製造 ’在將多孔質薄膜與通氣性補強材接合，用以製 片之情況，不僅透濕性、防水性良好，且亦具有 於住宅的防水薄片等的產業資材之優良的耐熱性 性' 耐久性，且在熱積層所使用的溶劑型接著劑 量之溶劑不會揮發，對環境影響少之製造方法。 其結果發現，本發明之複合薄片的製造，筹 熔接著劑作爲接著劑，對通氣性補強構件塗佈ί 方向，容 據用途， 熔著之接 易衣料或 保管中、 ，也會產 複合薄片 觀上的商 濕性或防 ，雖具有 乾燥製程 全衛生上 性有機化 的議題正 方法，即 造複合薄 能夠使用 、耐氣候 這樣的多 由使用熱 ，爲了黏 -6- 200835591 合多孔質薄膜，使最初進行壓著之滾子作爲設定成 度的加熱滾子，由多孔質薄膜束接觸預定時間，在 條件下同時地進行多孔質薄膜的熱收縮處理與熱熔 的壓著，可成爲具有上述特性之複合薄片。 〔用以解決課題之手段〕 即，本發明的複合薄片的製造方法，是以熱熔 將烯烴系多孔質薄膜與通氣性補強材予以接合之複 的製造方法，其特徵爲：在對通氣性補強材塗佈熱 劑，接著烯烴系多孔質薄膜之際，將由多孔質薄膜 進行壓著的滾子作爲加熱滾子，將此加熱滾子的溫 定於較藉由微差掃描熱量測定法（D S C )所顯示的 薄膜之外推溶解結束溫度高5 °C至低1 5 °C之範圍， 前述加熱滾子接觸於多孔質薄膜之時間設爲0.25〜 ，同時地進行多孔質薄膜的熱收縮處理與利用熱熔 之接合處理。 又’在本發明之複合薄片的製造方法，將前述 片作成：具有透濕度爲3 000g/m2 · 24hr以上的透 〇 又，在本發明之複合薄片的製造方法，將前述 薄膜作成：由聚乙烯、聚丙烯、或這些的混合物所 ，其厚度爲15〜70//m。 又，在本發明之複合薄片的製造方法，將前述 補強材作成：聚酯不織布或聚丙烯不織布、或聚酯 預定溫 特定的 接著劑 接著劑 合薄片 熔接著 側最初 度，設 多孔質 且將使 0.75 秒 接著劑 複合薄 濕性者 多孔質 形成者 通氣性 織布或 200835591 聚丙烯織布，其基量爲10〜100 g/m2。 本發明之複合薄片的製造方法，在製造製程中，在乾 層積所使用之溶劑型接著劑這種的多量溶劑不會揮發，對 環境的影響極小。又，在此發明的製造方法所獲得的複合 薄片，作爲住材建材，成爲亦可對應住宅品質確保促進法 .之具有優良的耐熱性、耐氣候性者。 又，本發明之複合薄片的製造方法，由於不需要進行 φ 如熔著工法這種熔著性優先之薄膜、通氣性補強材之開發 或選定，故，透濕性薄片之設計的自由度高、施工也快， 因此，能夠以低成本加以製造。且，本發明之複合薄片的 製造方法，不僅可應用於用後即棄型雨衣或防塵服等的簡 易衣料、住宅的防水薄片或農業用薄片等的產業資材，亦 可應用於被要求更高性能之製品。 【實施方式】 • 以下，根據圖面，詳細說明關於實施本發明之複合薄 片的製造方法的理想形態。 本發明是針對以熱熔接著劑將多孔質薄膜與通氣性補 強材予以接合之複合薄片的製造方法，在對通氣性補強材 * 塗佈熱熔接著劑後，在加熱滾子與壓延輥子之間將多孔質 薄膜與通氣性補強材進行壓著，作成複合薄片。在此情況 ’以對多孔質薄膜側，設定成預定溫度的加熱滾子接觸〜 定時間的方式，同時進行多孔質薄膜的熱收縮處理與利用 熱熔接著劑之接合處理。 -8- 200835591 使用於本發明之多孔質薄膜，可不受限地使用採用了 可作爲薄膜原料來使用之習知的聚烯羥之多孔質薄膜，但 以聚乙烯系樹脂作爲主原料之多孔質薄膜可發揮優良的發 明效果，故較理想。以低密度聚乙烯、中密度聚乙烯、高 密度聚乙烯爲原料之多孔質薄膜，在二次加工時或保管中 、搬運中容易引起熱收縮或隨著時間經過之收縮，但因具 有大的經濟優點，作爲本發明之薄膜原料來使用爲佳。 使用於本發明之通氣性補強材，不特別受限地可使用 習知的不織布、織布、割布、網狀物、網、紙、布等，但 理想爲使用在塗佈熱熔接著劑之際，網孔細小、接著劑不 易穿過內側，且耐熱性、耐氣候性優良的聚酯或聚烯羥之 不織布及織布。 使用於本發明之熱熔接著劑，可因應其塗佈性或接著 性，不特別受限地可使用習知的乙烯-醋酸乙烯共聚物（ EVA )爲基底之EVA系熱溶接著劑，以苯乙烯-異丁烯-苯 乙烯嵌段共聚物（SIS )、苯乙烯-丁二烯-苯乙烯嵌段共聚 物（SBS)、苯乙烯-乙烯-丁烯·苯乙烯嵌段共聚物（SEBS )、苯乙烯-乙烯-丙烯-苯乙烯嵌段共聚物（SEPS )爲基 底之合成橡膠系熱熔接著劑，以無定型聚烯烴共聚物（ APAO )爲基底之APAO系熱熔接著劑等。又，當使用近 年逐漸普及之胺甲酸乙酯或聚烯羥系的反應型熱熔接著劑 時，因在進行接著後，隨著時間經過，會與空氣中的水分 產生反應成爲強固的接合，所以，所獲得的複合薄片成爲 更具優良的耐熱性之薄片。 -9- 200835591 圖1是顯示本發明之複合薄片的製造方法的槪略圖， 爲了以熱熔接著劑3接合多孔質薄膜1與通氣性補強材2 ，首先將已經熔融的熱熔接著劑3，由塗佈頭4以2〜 15g/m2，塗佈於通氣性補強材2。作爲塗佈方法，由保持 複合薄片的透濕性之目的，不連續之塗佈方法的狹縫噴霧 法、幕簾噴霧法、螺旋噴霧法、凹板法等爲佳 在將熱熔接著劑3塗佈於前述通氣性補強材2後，立 即與多孔質薄膜1黏合並進行壓著，但，由於多孔質薄膜 1進行熱收縮處理，及將所塗佈的熱熔接著劑藉由熱予以 再熔融後壓著，使接著強度增大，因此，進行利用設定成 預定溫度之加熱滾子5與壓延輥子6之壓著。 利用前述加熱滾子5之壓著，理想爲在多孔質薄膜1 的熔點前後的溫度實施爲佳，在較藉由微差掃描熱量測定 法（DSC )所顯示的多孔質薄膜1之外推溶解結束溫度高 (以下僅稱爲溶解溫度）5 °C至低1 5 °C之範圍，以電氣加 熱、誘電加熱、熱媒循環等進行溫度控制，實施鏡面或壓 花加工，來進行的。 前述加熱滾子5的溫度是依據所使用的多孔質薄膜i 之種類或組成，熔點或結晶化度有所不同，但多數的情況 ，爲1 1 0〜1 3 0 °C之範圍內。具有下述傾向，即，在主要使 用低密度聚乙烯作爲多孔質薄膜1之原料的情況爲低，在 主要使用高密度聚乙烯或聚丙烯之情況變高。 在將前述加熱滾子5的溫度設定成比起較前述多孔質 薄膜1之溶解溫度高5 °C之溫度更高的情況，於製造時， -10- 200835591 會產生多孔質薄膜1的熔解、斷裂，即使增快黏 工速度用以縮短接觸時間，也會有熱負荷過度施 質薄膜1，在所獲得的複合薄片無法獲得充分的 透濕性。 在將前述加熱滾子5的溫度設定成比起較前 薄膜1之溶解溫度低1 5 °C之溫度更低的情況，於 由於無法充分地進行多孔質薄膜1之熱收縮處理 獲得所需要之耐熱性或接著強度。 爲了更確實地進行利用前述加熱滾子5之多 1的熱收縮處理及熱熔接著劑3的接著力提昇， 置密接於此加熱滾子5之爲佳。 藉由將此後備用滾子7做成可動式，能夠調 薄膜1與加熱滾子5的接觸時間，因此能夠變更 膜1的種類或製造時的施工速度。 又，藉由增大前述加熱滾子5的直徑或使用 能夠增長與多孔質薄膜1接觸的時間，可增快施 但需要將最初與多孔質薄膜1接觸的壓著滾子做 子5。 且，在將前述多孔質薄膜1與塗佈有熱熔接 通氣性補強材2進行壓著前，藉由僅使多孔質薄 觸於加熱滾子5，則開始進行多孔質薄膜1的熱 ，故能夠效率良好地進行施工。 根據所使用的多孔質薄膜1之種類或組成’熔點 度有所不同，但爲〇·25至0.75秒的範圍。 貼時的施 加於多孔 通氣性、 述多孔質 製造時， ，故無法 孔質薄膜 進一步設 整多孔質 多孔質薄 複數支， 工速度， 成加熱滾 著劑3的 膜1先接 收縮處理 或結晶化 -11 - 200835591 當與前述加熱滾子的接觸時間較0.25秒短時，由於 當進行製造時，無法充分地進行多孔質薄膜1的熱收縮處 理，故，無法獲得複合薄片所必需之耐熱性或接著強度。 當與前述加熱滾子5的接觸時間較0.75秒長時，於 製造時，會產生多孔質薄膜1的熔解、斷裂，或熱負荷過 度施加於多孔質薄膜1，在所獲得的複合薄片無法獲得充 分的通氣性、透濕性。 • 即，在本發明之複合薄片的製造方法，爲了實施有效 的熱收縮處理，根據多孔質薄膜1的種類或組成之加熱滾 子5的溫度設定、與加熱滾子5接觸的時間及加熱滾子5 的直徑、加工速度予以充分地測定、計算、準備的工作極 爲重要。 當前述多孔質薄膜1與加熱滾子5接觸時，多孔質薄 膜1會因熱而朝延伸方向收縮，但，此時，熱熔接著劑3 本身也因加熱滾子5的熱而處於熔融狀態，故，多孔質薄 ® 膜1可自由收縮地移動。又，因與加熱滾子5的接觸而收 縮之多孔質薄膜1及通氣性補強材2通過加熱滾子5，藉 _ 由處於熔融狀態的熱熔接著劑3 .冷卻並固化而進行接合， 由於熱熔接著劑3本身也受到加熱滾子5所熔融壓著，故 ^ 成爲非常強固的接合狀態。 且，在本發明之複合薄片的製造方法，在進行了前述 熱收縮處理後，爲了迅速地將熱熔接著劑3予以冷卻、固 化’故設置冷卻滾子（未圖示）爲佳。藉由進行利用此冷 卻滾子之冷卻製程，能夠防止在至捲取複合薄片的期間， -12- 200835591 以熱熔接著劑3所接合的多孔質薄膜1與通氣性補強材2 偏移’或熱熔接著劑3由通氣性補強材2滲出。 如以上方式所獲得之複合薄片，由於藉由加熱滾子5 一邊進行熱收縮，一邊藉由熱熔接著劑3被強固地接合， 故’在保管中或搬運中等，不僅在即使再次承受60 °C左右 • 的熱負荷之情況，且即使在爲了對應於住宅之品質確保促 進法而實施的9 0 °C的耐久性試驗，也不會產生因多孔質薄 φ 膜1的熱收縮所造成之剝離或皺褶、翹曲，成爲非常良好 者。 但，若不進行利用前述加熱滾子5之壓著，僅以滾子 進行壓著的話，因在所獲得的複合薄片無法獲得充分的接 著力，或無法進行多孔質薄膜1的熱收縮處理，所以，在 無法賦予充分的耐熱性，而長時間放置於直接暴露於陽光 下之戶外的場所或車中的情況時，則多孔質薄膜1會因熱 而產生收縮、變形、剝離。 # 且，在不使用前述熱熔接著劑3而使用溶劑系接著劑 之情況，即使經過乾燥製程而溶劑揮發產生優良的凝聚力 之接著劑與加熱滾子5接觸，也不會如熱熔接著劑3產生 熔融，與加熱滾子5接觸而受到熱所欲收縮之多孔質薄膜 ^ 1無法自由地移動，因此，在無法充分地收縮之狀態下， 受到接著劑所接合並固定。 因此，以溶劑系接著劑所接合的複合薄片，在爲進行 熱收縮處理下被固定，故，再次受到熱負荷之情況，多孔 質薄膜1會受到熱所收縮，即使在利用接著劑之接合部未 -13- 200835591 剝離，在所獲得之複合薄片也會產生皺褶或大的翹曲。 又，在不使用前述熱熔接著劑3而進行熱熔著之情況 ，也由於多孔質薄膜1與通氣性補強材2會被加熱滾子5 瞬間地固定，故，多孔質薄膜1無法自由移動，在無法收 縮之狀態下，被熔著所接合。在此情況，與使用溶劑係接 著劑之情況同樣地再次受到熱負荷之情況，於複合薄片也 會產生皺褶或大的翹曲。 〔實施例〕 以下，以實施例及比較例說明關於本發明。再者，在 實施例及比較例所記載的多孔質薄膜及複合薄片之各物性 値是以以下的方法進行測定的。 (1 )多孔質薄膜的溶解溫度（°c ) 以微差掃描型熱量分析裝置（精工電子公司製、 • RDC220 )，進行以l〇°C/min，由室溫昇溫至150°C爲止時 的微差掃描熱量測定（DSC )，獲得昇溫DSC曲線，以 JIS-K7121所規定之方法求取溶解溫度。將所獲得的昇溫 D S C曲線顯示於圖1 (多孔質薄膜A )、圖2 (多孔質薄 、 膜 B )。 (2 )通氣度（sec/i ooml ) 使用王硏式透氣度專用機（旭精工公司製、TYPE K GI - 5 5 )，測定通氣度。 -14- 200835591 (3 )透濕度（g/m2 _ 24hr ) 藉由JIS - L 1 0 9 9之A -1法所規定之杯，以j〖s _ a 1 3 4 2 所規定之方法，測定透濕度。 (4 )剝離強度（g/2.5cm ) 在複合薄片的寬度方向採取5片的試料（長度l5cm 、寬度2.5cm)，使用萬能拉力試驗機（A&D公司製、商 品名（TENSILON ))，在23 °C的環境溫度中，拉引速度 1 0 0 m m / m i η測定剝離強度。 (5 )耐久性試驗 在複合薄片的寬度方向分別採取5片的試料（長度3 0 cm、寬度5cm及長度5cm、寬度30cm )。將所採取到的 試料實施JIS-K7272所規定的耐久性試驗（放置於保持在 一定的溫度（90 °C ±2 °C )之烤爐中7星期）後，藉由目視 觀察複合薄片的狀態。將複合薄片的接合部完全沒有產生 剝離、皺褶、翹曲者以◦表示’在複合薄片僅產生翹曲者 以△表示，將因多孔質薄膜受到熱而產生的收縮造成由通 氣性補強材剝離者以X表示。 〔複合薄片的製造裝置〕 實施例1'至5及比較例2至6是藉由具備有直徑 3 0 0mm的誘電發熱式之加熱滾子的層積裝置’進行複合薄 片的製造。又，實施例6至1 0及比較例7至1 0是藉由具 -15- 200835591 備有直徑450mm的熱媒循環式之加熱滾子的層積裝置， 進行複合薄片的製造。 〔複合薄片的構成材料] (1 )多孔質薄膜A :聚乙烯（厚度4 5 // m、溶解溫 度 122.6°C ) (2 )多孔質薄膜b :聚乙烯（厚度40 // m、溶解溫 度 126.3〇C ) (3 )通氣性補強材a :聚酯製不織布（基量50g/m2 ) (4 )通氣性補強材B ··聚丙烯製不織布（基量 35g/m2 ) 〔熱熔接著劑〕 在製造除了比較例以外的所有複合薄片，使用合成橡 膠系熱熔接著劑（熔融黏度3 5 00mPa · s/180°C )，藉由可 呈細線狀地塗佈熱熔接著劑之塗佈裝置（Sunto〇l公司製 )，以塗佈溫度1 80°C、塗佈量8g/m2的條件，對通氣性 補強材側塗佈熱熔接著劑。 〔實施例1〕 在具備有直徑3 00mm的誘電發熱式之加熱滾子的層 積裝置，對通氣性補強材A塗佈接著劑後，將多孔質薄膜 A在加熱滾子溫度108.0 °C (低於多孔質薄膜A的溶解溫 -16- 200835591 度14.6°C )、施工速度60m/min (與加熱滾子的接觸時間 爲〇 · 5 3秒）之條件下黏合，獲得複合薄片。 此複合薄片是如表1所示，透濕度爲5041g/m2· 24hr ，在耐久性試驗也不會有因多孔質薄膜的收縮所引起之接 合部的剝離或翹曲產生，成爲極爲良好之透濕防水薄片。 〔實施例2至5〕 以與實施例1相同的層積裝置，在對通氣性補強材A 塗佈接著劑後，實施例2是將多孔質薄膜A在加熱滾子溫 度1 10.0°C (低於多孔質薄膜A的溶解溫度12.6°C )、施 工速度45m/miii (與加熱滾子的接觸時間爲0.71秒）之條 件下黏合，實施例3是將多孔質薄膜A在維持加熱滾子溫 度1 10.0°C、施工速度80m/min (與加熱滾子的接觸時間 爲0.4 0秒）之條件下黏合，實施例4是將多孔質薄膜A 在加熱滾子溫度115.0°C (低於多孔質薄膜A的溶解溫度 7.6t )、施工速度60m/min (與加熱滾子的接觸時間爲 0.53秒）之條件下黏合，實施例5是將多孔質薄膜A在加 熱滾子溫度120.0°C (低於多孔質薄膜A的溶解溫度2.6 °C )、施工速度1 l〇m/min (與加熱滾子的接觸時間爲 0.2 9秒）之條件下黏合，獲得各自之複合薄片。 在實施例2至5所獲得之複合薄片是如表1所示，透 濕度皆爲3000g/m2· 24hr以上，在耐久性試驗也不會有 因多孔質薄膜的收縮所引起之接合部的剝離或翹曲產生， 成爲極爲良好之透濕防水薄片。 -17- 200835591
實施例1 實施例2 實施例3 實施例4 實施例5 薄膜 A A A A A 薄膜的溶解溫度（。〇 ^J22.6 122.6 122.6 122.6 122.6 加熱滾子直徑（Him) 300 300 300 300 300 接觸長度（mm) 530 530 530 530 530 加熱滾子溫度（°c) 108. 110.0 110.0 115.0 120 薄膜的溶解溫度（。C )與 加熱滾子溫度（°C)之差 -14.6 -12.6 -12.6 -7.6 -2.6 施工速度（m/min) 60 45 80 60 110 加熱滾子接觸時間（sec) 0.53 0.71 0.40 0.53 0.29 通氣度（sec/100ml) 547 547 590 573 519 透濕度（g/m2 · 24hr) 5041 5041 5102 5000 5071 剝離強度（g/2.5cm) 380 薄膜 斷裂 395 薄膜 斷裂 400 薄膜 斷裂 410 薄膜 斷裂 390 薄膜 斷裂 耐久性試驗（90°C、7週） 〇 〇 〇 〇 〇 〔實施例6〕 # 在具備有直徑45〇mm的熱媒循環式之加熱滾子的層 積裝置，對通氣性補強材B塗佈接著劑後，將多孔質薄膜 B在加熱滾子溫度1 1 5 . 〇 °c (低於多孔質薄膜A的溶解溫 度11.3°C )、施工速度100m/min (與加熱滾子的接觸時 ’ 間爲0.42秒）之條件下黏合，獲得複合薄片。 此複合薄片是如表2所示，透濕度爲5 3 05 g/m2 · 24hr ，在耐久性試驗也不會有因多孔質薄膜的收縮所引起之接 合部的剝離或翹曲產生，成爲極爲良好之透濕防水薄片。 -18- 200835591 〔實施例7至1 0〕 以與實施例6相同的層積裝置，在對通氣性補強 塗佈接著劑後，實施例2是將多孔質薄膜Α在加熱滾 度120.0 °C (低於多孔質薄膜B的溶解溫度6.3 °C )、 速度60m/miti (與加熱滾子的接觸時間爲0.70秒）之 •下黏合，實施例8是將多孔質薄膜B在在加熱滾子 12 5.0°C (低於多孔質薄膜B的溶解溫度1.3°C )、施 φ 度160m/min (與加熱滾子的接觸時間爲0.26秒）之 下黏合，實施例9是將多孔質薄膜B在加熱滾子 1 3 0 · 0 °C (高於多孔質薄膜B的溶解溫度3 · 7 °C )、施 度65m/min (與加熱滾子的接觸時間爲0.65秒）之條 黏合，實施例1 〇是將多孔質薄膜B在加熱滾子溫度 °C (高於多孔質薄膜B的溶解溫度3.7 °C )、施工 120m/min (與加熱滾子的接觸時間爲0.35秒）之條 黏合，獲得各自之複合薄片。 # 在實施例7至10所獲得之複合薄片是如表2所 透濕度皆爲3〇OOg/m2 · 24hr以上，在耐久性試驗也 有因多孔質薄膜的收縮所引起之接合部的剝離或翹曲 ，成爲極爲良好之透濕防水薄片。
Mb 子溫 施工 條件 溫度 工速 條件 溫度 工速 件下 130.0 速度 件下 示， 不會 產生 -19- 200835591 〔表2〕 實施例6 實施例7 實施例8 實施例9 實施例10 薄膜 B B B B B 薄膜的溶解溫度rc ) 126.3 126.3 126.3 126.3 126.3 加熱滾子直徑（mrn) 450 450 450 450 450 接觸長度（mm) 700 700 700 700 700 加熱滾子溫度（。C) 115 120 125.0 130.0 130.0 薄膜的溶解溫度（°C)與 加熱滾子溫度（°C )之差 -11.3 -6.3 -1.3 +3.7 +3.7 施工速度（m/min) 100 60 160 65 120 加熱滾子接觸時間（sec) 0.42 0.70 0.26 0.65 0.35 通氣度（sec/100ml) 367 768 311 2277 338 透濕度（g/m2 · 24hr) 5305 4733 5406 3412 5364 剝離強度（g/2.5cm) 330 薄膜 斷裂 355 薄膜 斷裂 340 薄膜 斷裂 320 薄膜 斷裂 317 薄膜 斷裂 耐久性試驗（90°C、7週） 〇 〇 〇 〇 〇
〔比較.例1〕 = φ 對聚乙烯系的多孔質薄膜層積聚丙烯後進行熔著所獲 得之複合薄片是如表3所示，雖透濕度爲46 8 1 g/m2 · 24hr ，但，在進行耐久試驗後放置的狀態下，會，圓化成圓筒 狀程度之大的翹曲產生。 〔比較例2〕 在於實施例1至5所使用的層積裝置，在對通氣性補 強材A塗佈熱熔接著劑後在加熱滾子溫度33.Ot：(常溫） 、施工速度80m/min的條件下黏合，獲得複合薄片。 -20- 200835591 此複合薄片如表3所示，透濕度爲5 03 0 g/m2 · 24hr ，透濕性良好，但，在耐久性試驗，因多孔質薄膜顯著收 縮，造成接合部的大的剝離產生。又，剝離強度低，處於 熱熔接著劑之接合並不充分之狀態，在進行測定時，觀察 到在多孔質薄膜與通氣性補強材間在界面發生剝離之現象 〔比較例3至6〕 以與實施例1至5相同的層積裝置，在對通氣性補強 材A塗佈熱熔接著劑後，比較例3是在加熱滾子溫度 10 5.0°C (低於多孔質薄膜A的溶解溫度17.6 °C )、施工 速度50m/min (與加熱滾子的接觸時間爲0.64秒）之條件 下黏合，比較例4是在加熱滾子溫度1 2 8.0 °C (高於多孔 質薄膜A的溶解溫度5.4°C )、施工速度90m/min (與加 熱滾子的接觸時間爲0.35秒）之條件下黏合，比較例5 是在加熱滾子溫度120.0 °C (低於多孔質薄膜A的溶解溫 度2.6°C )、施工速度35m/min (與加熱滾子的接觸時間 爲0.9 1秒）之條件下黏合，比較例6是在加熱滾子溫度 115.0°C (低於多孔質薄膜A的溶解溫度7.6°C )、施工速 度135m/min (與加熱滾子的接觸時間爲0.24秒）之條件 下黏合，分別獲得複合薄片。 在比較例3 (加熱滾子的設定溫度低於多孔質薄膜A 的溶解溫度1 7 · 6 °C )、比較例6 (與加熱滾子的接觸時間 爲極短的0.24秒），如表3所示，透濕度爲5000g/m2 · -21 - 200835591 〔比較例7至1 〇〕 以與實施例6至1 〇相同的層積裝置，對通氣性補強 材Β塗佈塗佈熱熔接著劑後，比較例7是在加熱滾子溫度 1 1 0 · 0 °C (低於多孔質薄膜Β的溶解溫度1 6.3。(：）、施工 速度80m/min (與加熱滾子的接觸時間爲0.52秒）之條件 .下黏合，比較例8是將多孔質薄膜B在加熱滾子溫度 133.0 °C (高於多孔質薄膜B的溶解溫度6.7 °C )、施工速 φ 度65 m/min (與加熱滾子的接觸時間爲0.65秒）之條件下 黏合，比較例9是將多孔質薄膜B在加熱滾子溫度120.0 °C (低於多孔質薄膜B的溶解溫度6.3 °C )、施工速度 5 Om/min (與加熱滾子的接觸時間爲0.84秒）之條件下黏 合，比較例10是將多孔質薄膜B在加熱滾子溫度125.0 °C (低於多孔質薄膜B的溶解溫度1 .3 °C )、施工速度 175m/min (與加熱滾子的接觸時間爲0.24秒）之條件下 黏合，分別獲得複合薄片。
• 在比較例7 (加熱滾子的設定溫度低於多孔質薄膜B 的溶解溫度1 6.3 °C )、比較例1 〇 (與加熱滾子的接觸時 間爲極短的0.24秒），如表4所示，透濕度爲5000g/m2 • 24hr，透濕性良好，但，由於無法充分地進行利用加熱 ' 滾子之熱收縮處理，故，在耐久性試驗，會有因多孔質薄 膜的收縮，產生接合部的大的剝離或多孔質薄膜的皺褶。 在比較例8 (加熱滾子的設定溫度高於多孔質薄膜B 的溶解溫度6 · 7 °C )，如表4所示，在耐久性試驗，在接 合部沒有因多孔質薄膜的收縮所引起之剝離或翹曲，爲良 -23- 200835591 圖3是顯示使用於本發明的複合薄片之多孔質薄膜B 的D S C曲線之圖。 【主要元件符號說明】 1 :多孔質薄膜 2 :通氣性補強材 3 :熱熔接著劑 5 :加熱滾子
-25-

Claims (1)

  1. 200835591 十、申請專利範圍 1· 一種複合薄片的製造方法，是以熱熔接者劑將儲 烴系多孔質薄膜與通氣性補強材予以接合之複合薄片的製 造方法’其特徵爲： •在對通氣性補強材塗佈熱熔接著劑，接著烯烴系多孔 . 質薄膜之際，將由烯烴系多孔質薄膜側最初進行壓著的滾 子作爲加熱滾子，將此加熱滾子的溫度，設定於較藉由微 φ 差掃描熱量測定法（DSC )所顯示的烯烴系多孔質薄膜之 外推溶解結束溫度高5 °C至低1 5 °C之範圍，且將使前述加 熱滾子接觸於烯烴系多孔質薄膜之時間設爲0.25〜0.75秒 ’同時地進行烯烴系多孔質薄膜的熱收縮處理與利用熱熔 接著劑之接合處理。 2·如申請專利範圍第1項之複合薄片的製造方法， 其中’將前述複合薄片作成：具有透濕度爲3000g/m2· 24hr以上的透濕性者。 φ 3·如申請專利範圍第1項之複合薄片的製造方法， 其中，將前述烯烴系多孔質薄膜作成：由聚乙烯、聚丙稀 、或這些的混合物所形成者，其厚度爲15〜70/zm。 4·如申請專利範圍第丨項之複合薄片的製造方法， ， 其中，將前述通氣性補強材作成：聚酯不織布或聚丙燦不 織布、或聚酯織布或聚丙烯織布，其基量爲1〇〜10〇 g/$2 -26-
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