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WO2014005537A1 - 双向拉伸增粘预涂膜及其生产方法 - Google Patents

双向拉伸增粘预涂膜及其生产方法 Download PDF

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Publication number
WO2014005537A1
WO2014005537A1 PCT/CN2013/078844 CN2013078844W WO2014005537A1 WO 2014005537 A1 WO2014005537 A1 WO 2014005537A1 CN 2013078844 W CN2013078844 W CN 2013078844W WO 2014005537 A1 WO2014005537 A1 WO 2014005537A1
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WO
WIPO (PCT)
Prior art keywords
layer
melt adhesive
hot melt
adhesive layer
thickness
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2013/078844
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English (en)
French (fr)
Inventor
钟玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING KANGDE XIN COMPOSITE MATERIAL Co Ltd
Original Assignee
BEIJING KANGDE XIN COMPOSITE MATERIAL 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 BEIJING KANGDE XIN COMPOSITE MATERIAL Co Ltd filed Critical BEIJING KANGDE XIN COMPOSITE MATERIAL Co Ltd
Publication of WO2014005537A1 publication Critical patent/WO2014005537A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911Cooling
    • B29C48/9135Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914Cooling drums
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/34Layered products comprising a layer of synthetic resin comprising polyamides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/36Layered products comprising a layer of synthetic resin comprising polyesters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/40Layered products comprising a layer of synthetic resin comprising polyurethanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/20Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29Laminated material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92009Measured parameter
    • B29C2948/92114Dimensions
    • B29C2948/92152Thickness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92323Location or phase of measurement
    • B29C2948/92447Moulded article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92609Dimensions
    • B29C2948/92647Thickness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92942Moulded article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04Polymers of ethylene
    • B29K2023/08Copolymers of ethylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04Polymers of ethylene
    • B29K2023/08Copolymers of ethylene
    • B29K2023/083EVA, i.e. ethylene vinyl acetate copolymer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10Polymers of propylene
    • B29K2023/12PP, i.e. polypropylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2067/00Use of polyesters or derivatives thereof, as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2075/00Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2077/00Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0058Liquid or visquous
    • B29K2105/0073Solution
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0097Glues or adhesives, e.g. hot melts or thermofusible adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00Flat articles, e.g. films or sheets
    • B29L2007/008Wide strips, e.g. films, webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00Layered products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514Oriented
    • B32B2307/518Oriented bi-axially
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/10Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/16Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
    • C09J2301/162Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer the carrier being a laminate constituted by plastic layers only
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/20Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
    • C09J2301/208Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive layer being constituted by at least two or more adjacent or superposed adhesive layers, e.g. multilayer adhesive
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/40Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/414Additional features of adhesives in the form of films or foils characterized by the presence of essential components presence of a copolymer
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00Presence of polyolefin
    • C09J2423/04Presence of homo or copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00Presence of polyolefin
    • C09J2423/10Presence of homo or copolymers of propene
    • C09J2423/106Presence of homo or copolymers of propene in the substrate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2431/00Presence of polyvinyl acetate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00Presence of (meth)acrylic polymer
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00Presence of polyester
    • C09J2467/006Presence of polyester in the substrate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2477/00Presence of polyamide
    • C09J2477/006Presence of polyamide in the substrate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2479/00Presence of polyamine or polyimide
    • C09J2479/02Presence of polyamine or polyimide polyamine
    • C09J2479/026Presence of polyamine or polyimide polyamine in the substrate

Definitions

  • the present invention relates to the field of printing technology, and in particular to a precoat film, and more particularly to a biaxially stretched tackifying precoat film. Background technique
  • the laminating process can not only protect the printed matter, prolong its service life, but also improve the appearance of the printed matter. It is widely used in books, food, tobacco, alcohol, medicine and other packaging.
  • the coating process is divided into a coating film coating process and a precoat film coating process, wherein the precoat film coating process has environmental protection, high safety, convenient operation, high efficiency, energy saving and performance compared with the instant coating film coating process. Excellent and so on.
  • Paper publications, packaging materials and other printed materials have good visual effects and bright colors after pre-coated film coating.
  • domestic pre-coated film products are common EVA type or EVA type mixed EAA type pre-coated film, for low-speed manual
  • EVA type or EVA type mixed EAA type pre-coated film for low-speed manual
  • the coating process and the products that do not need to be rolled and embossed the ordinary pre-coated film can meet the requirements.
  • the ordinary pre-coated film can not meet the requirements, and the quality problems such as foaming, delamination and poor bonding are exhibited.
  • the present invention aims to solve at least one of the technical problems existing in the prior art.
  • the present invention provides a biaxially stretched tackifying precoat film which has the advantages of simple structure, convenient fabrication, and high bonding performance.
  • a biaxially stretched tackifying precoat film comprising: a substrate; an intermediate layer, the intermediate layer is disposed on the substrate; a hot melt adhesive layer, the hot melt adhesive layer is disposed on And the adhesion-promoting layer is disposed on the hot-melt adhesive layer.
  • the adhesion between the precoat film and the printed matter can be improved, whereby the adhesion of the precoat film is far greater.
  • it is suitable for printing products that have post-treatment requirements, low surface wetting tension, and are difficult to coat at high speeds.
  • the substrate is a biaxially stretched film
  • the intermediate layer is made of polyethyleneimine
  • the hot melt adhesive layer is made of copolymerized polyethylene
  • the thickened layer is made of water containing auxiliary components.
  • Polyurethane emulsion is a biaxially stretched film
  • the intermediate layer is made of polyethyleneimine
  • the hot melt adhesive layer is made of copolymerized polyethylene
  • the thickened layer is made of water containing auxiliary components.
  • the substrate is a biaxially oriented polyester film or a biaxially stretched nylon film or a bidirectional A polypropylene film is stretched.
  • the hot melt adhesive layer is an ethylene-vinyl acetate copolymer, an ethylene-ethyl acrylate copolymer, an ethylene-acrylic acid copolymer, an ethylene-methyl acrylate copolymer or a low density polyethylene.
  • the adhesion-promoting layer is a mixture of the polyurethane emulsion having a solid content of 5% to 50% and the auxiliary component having a solid content of 0.1% to 10%, wherein the auxiliary component comprises a stream.
  • Flat agent, adhesion promoter
  • the polyurethane emulsion has a solid content of 10% to 30%, and the auxiliary component has a solid content of 1% to 5%.
  • the substrate has a thickness of 10 to 30 ⁇ m
  • the intermediate layer has a thickness of 0.01 to 0.03 ⁇ m
  • the hot melt adhesive layer has a thickness of 10 to 35 m.
  • the thickness of the adhesion-promoting layer is 0.1 to 0.5 m
  • the dry weight of the adhesion-promoting layer is 0.05 to 0.5 g/m 2 .
  • the substrate has a thickness of 12 to 20 ⁇ m
  • the intermediate layer has a thickness of 0.01 to 0.02 rn
  • the hot melt adhesive layer has a thickness of 12 to 25 m.
  • the thickness of the adhesive layer is 0.2 to 0.4 m
  • the dry weight of the adhesion-promoting layer is 0.1 to 0.3 g/m 2 .
  • the intermediate layer is a coated polyethyleneimine aqueous solution having a solid content of 0.4% to 1.5%, and the polyethyleneimine has the formula: (CH2CH2NH) n, wherein the n value is according to polymerization.
  • the average molecular weight of the substance is selected in the range of 1000 to 10,000.
  • the pre-coated film according to the embodiment of the present invention has a large adhesive force, so that the embossing and the tying of the pre-coated film can be perfectly realized to meet the laminating requirements of the customers.
  • the polyurethane emulsion is used as an adhesion-promoting layer, which can penetrate into the ink layer of the printed matter, and can have good adhesion with various inks, and has ultra-high adhesion characteristics to the printed matter.
  • the pre-coated film has The utility model has the advantages of simple structure, convenient manufacture and high bonding performance.
  • the invention also proposes a method for producing a biaxially stretched tackifying precoat film, comprising the following steps:
  • the side of the substrate to be coated with the intermediate layer is corona treated, so that the surface of the substrate has a cause value of 36-54;
  • FIG. 1 is a schematic view of a biaxially stretched tackifying precoat film according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing the structure of a production system of a biaxially stretched tackifying precoat film according to an embodiment of the present invention.
  • I unwinding machine; 2, corona processor; 3, the first coating roller; 4, the first coating tank;
  • first and second are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first”, “second” may explicitly or implicitly include one or more of the features. Further, in the description of the present invention, “multiple” means two or more unless otherwise stated.
  • a biaxially stretched tackifying precoat film comprises a substrate 01, an intermediate layer 02 disposed on the substrate 01, and a hot melt adhesive layer disposed on the intermediate layer 02. 03, and an adhesion promoting layer 04 provided on the hot melt adhesive layer 03.
  • the substrate 01 may be a biaxially oriented polyester film or a biaxially oriented nylon film or a biaxially oriented polypropylene film.
  • the adhesion promoting layer 04 on the side of the hot melt adhesive layer 03, the adhesion between the precoat film and the printed matter can be improved.
  • the adhesion of the pre-coated film is much larger than that of the conventional pre-coated film, and is suitable for printing products which have the requirements of a post-treatment process, have a low surface wetting tension, and are difficult to coat at a high speed.
  • the substrate 01 is a biaxially oriented film
  • the intermediate layer 02 is made of polyethyleneimine (PEI)
  • the hot melt adhesive layer 03 is made of copolymerized polyethylene
  • the adhesion layer 04 is selected to contain auxiliary components. Waterborne polyurethane emulsion.
  • Such a pre-coating film is a novel pre-coating film, and because of its large adhesive force, the embossing, tying and the like embossing process after the pre-coating film coating is perfectly realized, satisfying the majority
  • the customer's film coating needs, at the same time, polyurethane emulsion as the adhesion layer 04, which can penetrate into the ink layer of the printed matter, and can have good adhesion with a variety of inks, and has ultra-high adhesion characteristics to the printed matter.
  • the hot melt adhesive layer 03 is an ethylene-vinyl acetate copolymer, an ethylene-ethyl acrylate copolymer, an ethylene-acrylic acid copolymer, an ethylene-methyl acrylate copolymer or a low density polyethylene. .
  • the adhesion promoting layer 04 is a mixture of the polyurethane emulsion having a solid content of 5% to 50% and the auxiliary component having a solid content of 0.1% to 10%, the auxiliary component including leveling. Agent, adhesion promoter.
  • the polyurethane emulsion has a solid content of 10% to 30%, and the auxiliary component is contained in an amount of 1% to 5%.
  • the substrate 01 has a thickness of 12 to 20 m, and the thickness of the intermediate layer 02 is
  • the thickness of the hot-melt adhesive layer 03 is 12 to 25 ⁇ m
  • the thickness of the adhesion-promoting layer 04 is 0.2 to 0.4 ⁇ m
  • the dry weight of the adhesion-promoting layer 04 is 0.1 to 0.3 g/m. 2
  • the intermediate layer 02 is a coated polyethyleneimine aqueous solution having a solid content of 0.4% to 1.5%, and the molecular formula of the polyethyleneimine: (CH2CH2NH) n, according to the average molecular weight of the polymer is 1000 ⁇ 10000 The range of values is chosen to be n.
  • the precoat film according to the embodiment of the present invention will be described in detail below by taking a biaxially oriented polyester film (BOPET) tackified precoat film having a width of 1600 mm as an example.
  • BOPET biaxially oriented polyester film
  • the biaxially stretched polyester film (BOPET) tackified precoat film is composed of a substrate 01, an intermediate layer 02, a hot melt adhesive layer 03, and an adhesion promoting layer 04, a substrate 01, an intermediate layer 02, and a heat.
  • the melt layer 03 and the adhesion promoting layer 04 have the same width.
  • the substrate 01 is made of biaxially oriented polyester film (BOPET) with a width of 1620 mm and a thickness of 12 m;
  • the intermediate layer 02 is made of polyethyleneimine (PEI), and its coated solid content is 1.2%, and the width of the coating is It is 1620 mm, the thickness is 0.015 ⁇ m, and the coating amount is between 0.009 and 0.01 g/m 2 ;
  • the adhesion-promoting layer 04 uses a polyurethane emulsion having a solid content of 5% to 50% and an auxiliary component having a solid content of 0.1% to 10%.
  • the mixture, the auxiliary component includes a leveling agent, an adhesion promoter, etc.
  • the thickness of the adhesion-promoting layer is 0.3 m
  • the coating dry weight of the adhesion-promoting layer 04 is between 0.05 and 0.5 g/m 2 .
  • a method for producing a biaxially stretched polyester film (BOPET) tackified precoat film according to an embodiment of the present invention, as shown in FIG. 2, includes the following steps:
  • Step a unwinding the substrate layer:
  • a biaxially stretched polyester film ( ⁇ ) having a thickness of 12 m is placed on the unwinder 1 and unwound through an inflation shaft to unfold it;
  • Step b corona treatment of the substrate:
  • the unrolled biaxially oriented polyester film (BOPET) substrate is fed into the corona processor 2, and one side of the intermediate layer to be coated is subjected to corona treatment so that the surface cause value thereof is 54;
  • Step C coating the middle layer:
  • the corona-treated biaxially stretched polyester film (BOPET) substrate from the corona processor 2 enters the first coating roll 3, and the first coating roll 3 is placed in the first coating tank 4.
  • a polyethyleneimine (PEI) aqueous solution is coated on the corona-treated surface of the substrate to bond the polyethyleneimine (PEI) intermediate layer to the biaxially oriented polyester film (BOPET) substrate, and then the bonded film enters Drying channel 5 is subjected to drying treatment, and the thickness of the intermediate layer after drying is 0.015 ⁇ m, and the coating amount is between 0.009 and 0.01 g/m 2 ;
  • Extruder 7 of the extrusion compound line Extrusion of ethylene-vinyl acetate (EVA) copolymer hot melt adhesive
  • an ozone generator (not shown) is installed at the compound station of the production line, and ozone is generated by the ozone generator.
  • spraying through the ozone tube 12 to the casting of the extruded hot melt adhesive, and the bonding roller 6 of the production line transports the dried biaxially stretched polyester film (BOPET) film combined with polyethyleneimine to the composite.
  • BOPET biaxially stretched polyester film
  • the working place, and the hot melt adhesive cast to the composite station part is pressed and combined by the engaging roller 6 to form a composite film, which is then cooled by a cooling roll 8 (temperature is 20 ° C), and the thickness of the hot melt adhesive layer is 13 ⁇ ;
  • Step e coating the adhesion layer:
  • the film conveyed from the cooling roll 8 enters the second coating roll 9, and the second coating roll 9 will have a solid content of 5% to 50% of the polyurethane emulsion placed in the second coating tank 10 and the content is 0.1% ⁇ 10% of the auxiliary component mixture is coated on the surface of the hot melt adhesive layer of the film to be combined with the film, and then the combined film enters the drying channel 5 for drying, and the thickness of the tackified layer after drying is 0.3 m.
  • the adhesion-promoting layer has a coating dry weight of between 0.05 and 0.5 g/m 2 , and the auxiliary component in the adhesion-promoting layer comprises a leveling agent, an adhesion promoter, and the like;
  • Step f finished product winding:
  • the processed pre-coated film is wound by the winder 11, and the edges of the rolled pre-coated film are collectively cut 20 mm, and the final product width is 1600 mm, the thickness is 25.4 m, and the thickness deviation is 2 m.
  • Embodiment 2 :
  • precoat film according to the embodiment of the present invention will be described in detail below by taking a biaxially oriented polypropylene film (BOPP) thickened precoat film having a width of 1600 mm as an example:
  • BOPP biaxially oriented polypropylene film
  • the biaxially oriented polypropylene film (BOPP) tackifying precoat film is composed of a substrate 01, an intermediate layer 02, a hot melt adhesive layer 03, and an adhesion promoting layer 04, a substrate 01, an intermediate layer 02, and a heat.
  • the melt layer 03 and the adhesion promoting layer 04 have the same width.
  • the substrate 01 is a biaxially oriented polypropylene film (BOPP) having a width of 1620 mm and a thickness of 20 m;
  • the intermediate layer 02 is made of polyethyleneimine (PEI), and the coating has a solid content of 0.8% and a coating width. It is 1620 mm, the thickness is 0.01 ⁇ m, and the coating amount is between 0.009 and 0.01 g/m 2 ;
  • the hot melt adhesive layer 03 is an ethylene-methyl acrylate (EMA) copolymer having a composite width of 1620 mm and a thickness of 20 ⁇ m.
  • EMA ethylene-methyl acrylate
  • the adhesion-promoting layer 04 is a mixture of a polyurethane emulsion having a solid content of 5% to 50% and an auxiliary component having a content of 0.1% to 10%, and the auxiliary component includes a leveling agent, an adhesion promoter, etc., and the thickness of the adhesion-promoting layer is 0.5 m, the coating dry weight of the adhesion promoting layer 04 is between 0.05 and 0.5 g/m 2 .
  • the finished precoated film has a thickness of about 40.5 ⁇ m.
  • the production method of the biaxially oriented polypropylene film (BOPP) thickened precoat film, as shown in Fig. 2, includes the following steps:
  • Step a unwinding the substrate layer:
  • a biaxially oriented polypropylene film (BOPP) having a thickness of 20 ⁇ m is placed on the unwinder 1 and unwound through an inflation shaft to unfold it;
  • Step b corona treatment of the substrate:
  • the unrolled biaxially oriented polypropylene film (BOPP) substrate is fed into the corona processor 2, and one side of the intermediate layer to be coated is subjected to corona treatment so that its surface dyne value is 36;
  • Step c coating the middle layer:
  • An aqueous solution of polyethyleneimine (PEI) is coated on the corona-treated surface of the substrate to bond the polyethyleneimine (PEI) intermediate layer to the biaxially oriented polypropylene film (BOPP) substrate, and then the composite film enters Drying channel 5 is subjected to drying treatment, and the thickness of the intermediate layer after drying is 0.01 ⁇ m, and the coating amount is between 0.009 and 0.01 g/m 2 ;
  • the extruder 7 of the extrusion compounding line extrudes the ethylene-methyl acrylate (EMA) copolymer hot melt adhesive
  • an ozone generator is arranged at the compound station of the production line, and ozone is generated by the ozone generator and sprayed through the ozone tube 12 Blowing to the casting of the extruded hot melt adhesive, while the intermeshing roller 6 of the production line transports the already dried polyethyleneimine-coated biaxially oriented polypropylene film (BOPP) film to the composite station, and the flow
  • the hot melt adhesive which is extended to the composite station is pressed and joined by the engaging roller 6 to form a composite film, which is then cooled by a cooling roller 8 (temperature is 20 ° C), and the thickness of the hot melt adhesive layer is 20 ⁇ m;
  • Step e coating the adhesion layer:
  • the film conveyed from the cooling roll 8 enters the second coating roll 9, and the second coating roll 9 will have a solid content of 5% to 50% of the polyurethane emulsion placed in the second coating tank 10 and the content is 0.1% ⁇ 10% of the auxiliary component mixture is coated on the surface of the hot melt adhesive layer of the film to be combined with the film, and then the composite film is dried into the drying channel 5, and the thickness of the thickened layer after drying is 0.5 m.
  • the adhesion-promoting layer has a coating dry weight of 0.05 to 0.5 g/n, and the auxiliary component in the adhesion-promoting layer includes a leveling agent, an adhesion promoter, and the like;
  • Step f finished product winding:
  • the processed pre-coated film is wound by the winder 11 and the edges of the rolled pre-coated film are cut and cut 20 mm, and the final product width is 1600 mm, the thickness is 40.5 m, and the thickness deviation is 2 m.
  • the adhesion between the precoat film and the printed matter can be improved, whereby the adhesion of the precoat film is far greater.
  • the precoat film according to the present invention has a large adhesive force, the embossing process such as embossing and twisting after the precoating film is completely realized, and the coating demand of the customers is satisfied, and at the same time, the polyurethane is used.
  • the emulsion can penetrate into the ink layer of the printed matter, and can have good adhesion with a variety of inks, and has ultra-high adhesion characteristics to the printed matter.
  • the pre-coated film has a simple structure. , easy to manufacture, high bonding performance.

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Description

双向拉伸增粘预涂膜及其生产方法
技术领域
本发明涉及印刷技术领域, 具体涉及一种预涂膜, 特别涉及一种双向拉伸增粘预涂 膜。 背景技术
覆膜工艺不仅可以对印刷品提供保护作用, 延长其使用寿命, 还可以提高印刷品的 外观效果, 广泛的应用于书刊、 食品、 烟酒、 药品等包装上。 覆膜工艺分为即涂膜覆膜 工艺与预涂膜覆膜工艺, 其中相比于即涂膜覆膜工艺, 预涂膜覆膜工艺具有环保、 安全 性高、 操作方便、 高效节能、 性能优异等特点。
纸质出版物、 包装物等印刷品经过预涂膜覆膜后视觉效果好, 色彩鲜艳, 目前国内 的预涂膜产品都是普通的 EVA型或 EVA型混合 EAA型的预涂膜, 对于低速手工覆膜 工艺以及不需进行轧线、 凹凸处理的产品, 普通预涂膜可以满足要求。 但对于全自动高 速覆膜工艺, 以及对于覆后进行轧线、 凹凸处理的产品, 普通预涂膜不能满足其要求, 表现为起泡、 脱层以及粘接不牢等质量问题。
因此, 必须设计新的材料和生产方法, 以生产出能适应高速覆膜和覆后轧线处理不 脱膜的预涂膜。 发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。 由此, 本发明提出了一种双 向拉伸增粘预涂膜, 所述双向拉伸增粘预涂膜具有结构简单、 制作方便、 粘接性能高的 优点。
根据本发明实施例的一种双向拉伸增粘预涂膜, 包括: 基材; 中间层, 所述中间层设 在所述基材上; 热熔胶层, 所述热熔胶层设在所述中间层上; 以及增粘层, 所述增粘层设 在所述热熔胶层上。
根据本发明实施例的预涂膜, 通过在热熔胶层一侧涂布增粘层, 可以提高预涂膜与印 刷品之间的粘接性, 由此, 预涂膜的粘接力远远大于普通预涂膜, 适合应用于有后处理工 序要求、 表面润湿张力低以及在高速度下较难覆膜的印品。
根据本发明的一个实施例, 所述基材为双向拉伸薄膜, 所述中间层采用聚乙烯亚胺, 所述热熔胶层采用共聚聚乙烯, 所述增粘层采用含有辅助成分的水性聚氨酯乳液。
根据本发明的一个实施例, 所述基材为双向拉伸聚酯薄膜或双向拉伸尼龙薄膜或双向 拉伸聚丙烯薄膜。
根据本发明的一个实施例, 所述热熔胶层为乙烯 -醋酸乙烯共聚物、 乙烯 -丙烯酸乙酯 共聚物、 乙烯-丙烯酸共聚物、 乙烯-丙烯酸甲酯共聚物或低密度聚乙烯。
根据本发明的一个实施例, 所述增粘层为固含量在 5%〜50%的所述聚氨酯乳液和固 含量在 0.1%〜10%的所述辅助成分的混合物, 所述辅助成分包括流平剂、 粘接促进剂。
根据本发明的一个实施例, 所述聚氨酯乳液固含量为 10%〜30%, 所述辅助成分的固 含量为 1%〜5%。
根据本发明的一个实施例,所述基材的厚度为 10〜30 μ m,所述中间层的厚度为 0.01〜 0.03 μ m, 所述热熔胶层的厚度为 10〜35 m, 所述增粘层的厚度为 0.1〜0.5 m, 所述增 粘层的涂布干重为 0.05〜0.5g/m2
根据本发明的一个实施例,所述基材的厚度为 12〜20 μ m,所述中间层的厚度为 0.01〜 0.02 rn, 所述热熔胶层的厚度为 12〜25 m, 所述增粘层的厚度为 0.2〜0.4 m, 所述增 粘层的涂布干重为 0.1〜0.3g/m2
根据本发明的一个实施例, 所述中间层为涂布的固含量在 0.4%〜1.5%的聚乙烯亚胺 水溶液, 所述聚乙烯亚胺的分子式: (CH2CH2NH) n, 其中 n值根据聚合物的平均分子量 在 1000〜10000的范围内选择。
根据本发明实施例的预涂膜, 由于其粘接力较大, 使得利用该预涂膜覆膜后的压纹、 扎线等击凸工艺得以完美实现, 满足广大客户的覆膜需求, 同时以聚氨酯乳液作为增粘层, 其可渗透进印刷品的油墨层, 并且可以跟多种油墨有很好的粘接力, 对印刷品具有超高粘 接特性, 对比现有技术, 此预涂膜具有结构简单、 制作方便、 粘接性能高的优点。
本发明还提出了一种双向拉伸增粘预涂膜的生产方法, 包括以下步骤:
a、 将基材卷材安放到放卷机上, 并通过气胀轴放卷;
b、 对基材待涂覆中间层的一面进行电晕处理, 以使基材的表面达因值为 36-54;
c、 通过涂布辊涂布方式将中间层涂覆于基材的电晕处理表面上, 然后经过烘干通道对 其进行烘干;
d、 利用挤出机将热熔胶层挤出, 同时通过臭氧发生器将产生的臭氧喷吹到挤出的热熔 胶层材料的流延处, 流延处的热熔胶层通过啮合辊挤压结合于中间层的表面, 形成复合膜, 再经过冷却辊进行冷却;
e、 通过涂布辊涂布方式将增粘层涂覆于热熔胶层的表面;
f、 利用烘干通道将涂覆完毕的预涂膜进行烘干, 再利用收卷机对加工完成的预涂膜进 行收卷。
本发明的附加方面和优点将在下面的描述中部分给出, 部分将从下面的描述中变得 明显, 或通过本发明的实践了解到。 附图说明
本发明的上述和 /或附加的方面和优点从结合下面附图对实施例的描述中将变得明 显和容易理解, 其中:
图 1为根据本发明实施例的双向拉伸增粘预涂膜的示意图;
图 2为根据本发明实施例的双向拉伸增粘预涂膜的生产系统的结构示意图。 附图标记:
01、 基材; 02、 中间层; 03、 热熔胶层; 04、 增粘层;
I、 放卷机; 2、 电晕处理器; 3、 第一涂布辊; 4、 第一涂布槽;
5、 烘干通道; 6、 啮合辊; 7、 挤出机; 8、 冷却辊;
9、 第二涂布辊; 10、 第二涂布槽;
I I、 收卷机; 12、 臭氧管 具体实施方式
下面详细描述本发明的实施例, 所述实施例的示例在附图中示出, 其中自始至终相 同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附 图描述的实施例是示例性的, 仅用于解释本发明, 而不能理解为对本发明的限制。
在本发明的描述中, 需要理解的是, 术语 "上" 、 "下" 、 "顶" 、 "底"等指示 的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化 描述, 而不是指示或暗示所指的装置或元件必须具有特定的方位、 以特定的方位构造和 操作, 因此不能理解为对本发明的限制。
需要说明的是, 术语 "第一" 、 "第二 "仅用于描述目的, 而不能理解为指示或暗 示相对重要性或者隐含指明所指示的技术特征的数量。 由此, 限定有 "第一"、 "第二" 的特征可以明示或者隐含地包括一个或者更多个该特征。进一步地,在本发明的描述中, 除非另有说明, "多个" 的含义是两个或两个以上。
如图 1 所示, 根据本发明实施例的一种双向拉伸增粘预涂膜, 包括基材 01、 在基 材 01上设置的中间层 02、在中间层 02上设置的热熔胶层 03、 以及在热熔胶层 03上设 置的增粘层 04。 可选地, 基材 01可以为双向拉伸聚酯薄膜或双向拉伸尼龙薄膜或双向拉 伸聚丙烯薄膜。
由此, 通过在热熔胶层 03—侧涂布增粘层 04, 可以提高预涂膜与印刷品之间的粘 接性, 使此预涂膜的粘接力远远大于普通预涂膜, 适合应用于有后处理工序要求、 表面 润湿张力低以及在高速度下较难覆膜的印品。
根据本发明的一个优选实施例, 基材 01选用双向拉伸薄膜, 中间层 02选用聚乙烯 亚胺 (PEI) , 热熔胶层 03选用共聚聚乙烯, 而增粘层 04则选用含有辅助成分的水性 聚氨酯乳液。
由此, 这样的预涂膜是一种新型的预涂膜, 由于其粘接力较大, 使得利用该预涂膜 覆膜后的压纹、 扎线等击凸工艺得以完美实现, 满足广大客户的覆膜需求, 同时以聚氨 酯乳液作为增粘层 04, 其可渗透进印刷品的油墨层, 并且可以跟多种油墨有很好的粘 接力, 对印刷品具有超高粘接特性。
在本发明的一个可选实施例中, 热熔胶层 03为乙烯 -醋酸乙烯共聚物、 乙烯-丙烯酸乙 酯共聚物、 乙烯-丙烯酸共聚物、 乙烯-丙烯酸甲酯共聚物或低密度聚乙烯。
根据本发明的一些实施例, 增粘层 04为固含量在 5%〜50%的所述聚氨酯乳液和固含 量在 0.1%〜10%的所述辅助成分的混合物, 所述辅助成分包括流平剂、 粘接促进剂。 可选 地, 聚氨酯乳液固含量为 10%〜30%, 所述辅助成分的含量为 1%〜5%。
根据本发明的一些优选实施例, 基材 01 的厚度为 12〜20 m, 中间层 02的厚度为
0.01-0.02 u rn, 热熔胶层 03的厚度为 12〜25 μ m, 增粘层 04的厚度为 0.2〜0.4 μ m, 其中 增粘层 04的涂布干重为 0.1〜0.3g/m2。 可选地, 中间层 02为涂布的固含量在 0.4%〜1.5% 的聚乙烯亚胺水溶液, 所述聚乙烯亚胺的分子式: (CH2CH2NH) n, 根据聚合物的平均分 子量在 1000〜10000的范围选择 n值。 实施例一,
下面以宽度为 1600mm的双向拉伸聚酯薄膜 (BOPET)增粘预涂膜为例, 对根据本 发明实施例的预涂膜进行详细的说明。
如图 1所示, 双向拉伸聚酯薄膜 (BOPET) 增粘预涂膜由基材 01、 中间层 02、 热 熔胶层 03以及增粘层 04组成, 基材 01、 中间层 02、 热熔胶层 03和增粘层 04的宽度 相同。
其中基材 01采用双向拉伸聚酯薄膜 (BOPET) , 宽度为 1620mm, 厚度为 12 m; 中间层 02采用聚乙烯亚胺(PEI),其涂布的固含量为 1.2%,涂布的宽度为 1620mm, 厚度为 0.015 μ m, 涂布量在 0.009〜0.01g/m2之间;
热熔胶层 03采用乙烯-醋酸乙烯 (EVA) 共聚物, 复合的宽度为 1620mm, 厚度为
13 μ m。
增粘层 04采用固含量在 5%〜50%的聚氨酯乳液和固含量在 0.1%〜10%的辅助成分 的混合物, 辅助成分包括流平剂、 粘接促进剂等等, 增粘层的厚度为 0.3 m, 增粘层 04的涂布干重在 0.05〜0.5g/m2之间。
制造完成的预涂膜的厚度约为 25.4 μ m。 根据本发明实施例的双向拉伸聚酯薄膜 (BOPET) 增粘预涂膜的生产方法, 如图 2 所示, 包括以下步骤:
步骤 a, 基材层放卷:
将厚度为 12 m双向拉伸聚酯薄膜 (ΒΟΡΕΤ) 安放于放卷机 1上通过气胀轴放卷, 将其展开;
步骤 b, 基材的电晕处理:
将展开的双向拉伸聚酯薄膜 (BOPET) 基材送入电晕处理器 2, 对其待涂布中间层 的一面进行电晕处理, 以使其的表面达因值为 54;
步骤 C, 涂布中间层:
从电晕处理器 2出来的被电晕处理的双向拉伸聚酯薄膜 (BOPET)基材, 进入第一 涂布辊 3, 第一涂布辊 3将放置在第一涂布槽 4内的聚乙烯亚胺 (PEI) 水溶液涂布在 基材的电晕处理表面上, 使聚乙烯亚胺 (PEI) 中间层与双向拉伸聚酯薄膜 (BOPET) 基材结合, 然后结合后的薄膜进入烘干通道 5进行烘干处理, 烘干后的中间层的厚度为 0.015 μ m, 涂布量在 0.009〜0.01g/m2之间;
步骤 d, 复合热熔胶层:
挤出复合生产线的挤出机 7 挤出乙烯-醋酸乙烯 (EVA) 共聚物热熔胶, 在生产线 的复合工位处设置有臭氧发生器(图中未画出) , 由臭氧发生器产生臭氧并通过臭氧管 12喷吹到挤出的热熔胶的流延处, 同时生产线的啮合辊 6将已经烘干的结合有聚乙烯 亚胺的双向拉伸聚酯薄膜 (BOPET) 薄膜输送至复合工位, 并与流延至复合工位部位 的热熔胶通过啮合辊 6挤压结合,形成复合膜,再经过冷却辊 8冷却 (温度为 20°C )处理, 热熔胶层的厚度为 13 μ ηι;
步骤 e, 涂布增粘层:
从冷却辊 8传送过来的薄膜进入第二涂布辊 9, 第二涂布辊 9将放置在第二涂布槽 10内的固含量在 5%〜50%的聚氨酯乳液和含量在 0.1%〜10%的辅助成分混合物涂布薄 膜的热熔胶层表面上, 使其与薄膜结合, 然后结合后的薄膜进入烘干通道 5进行烘干处 理, 烘干后的增粘层的厚度为 0.3 m, 增粘层的涂布干重在 0.05〜0.5g/m2之间, 增粘 层中的辅助成分包括流平剂、 粘接促进剂等等;
步骤 f、 成品收卷: 通过收卷机 11 对加工完成的预涂膜进行收卷, 将收卷后的卷材预涂膜两侧边缘累 计切掉 20mm, 最终产品宽度为 1600mm, 厚度为 25.4 m, 厚度偏差 2 m。 实施例二:
下面以宽度为 1600mm的双向拉伸聚丙烯薄膜 (BOPP ) 增粘预涂膜为例, 对根据 本发明实施例的预涂膜进行详细的说明:
如图 1所示, 双向拉伸聚丙烯薄膜 (BOPP ) 增粘预涂膜由基材 01、 中间层 02、 热 熔胶层 03以及增粘层 04组成, 基材 01、 中间层 02、 热熔胶层 03和增粘层 04的宽度 相同。
其中基材 01采用双向拉伸聚丙烯薄膜 (BOPP ) , 宽度为 1620mm, 厚度为 20 m; 中间层 02采用聚乙烯亚胺(PEI ),其涂布的固含量为 0.8%,涂布的宽度为 1620mm, 厚度为 0.01 μ m, 涂布量在 0.009〜0.01g/m2之间;
热熔胶层 03采用乙烯 -丙烯酸甲酯 (EMA ) 共聚物, 复合的宽度为 1620mm, 厚度 为 20 μ m。
增粘层 04采用固含量在 5%〜50%的聚氨酯乳液和含量在 0.1 %〜10%的辅助成分的 混合物, 辅助成分包括流平剂、 粘接促进剂等等, 增粘层的厚度为 0.5 m, 增粘层 04 的涂布干重在 0.05〜0.5g/m2之间。
制造完成的预涂膜的厚度约为 40.5 μ m。
双向拉伸聚丙烯薄膜 (BOPP ) 增粘预涂膜的生产方法, 如图 2所示, 包括以下步 骤:
步骤 a, 基材层放卷:
将厚度为 20 μ m双向拉伸聚丙烯薄膜(BOPP )安放于放卷机 1上通过气胀轴放卷, 将其展开;
步骤 b, 基材的电晕处理:
将展开的双向拉伸聚丙烯薄膜(BOPP )基材送入电晕处理器 2, 对其待涂覆中间层 的一面进行电晕处理, 以使其的表面达因值为 36 ;
步骤 c, 涂布中间层:
从电晕处理器 2 出来的被电晕处理的双向拉伸聚丙烯薄膜 (BOPP ) 基材, 进入第 一涂布辊 3, 第一涂布辊 3将放置在第一涂布槽 4内的聚乙烯亚胺 (PEI ) 水溶液涂覆 在基材的电晕处理表面上, 使聚乙烯亚胺(PEI )中间层与双向拉伸聚丙烯薄膜(BOPP ) 基材结合, 然后复合后的薄膜进入烘干通道 5进行烘干处理, 烘干后的中间层的厚度为 0.01 μ m, 涂布量在 0.009〜0.01 g/m2之间; 步骤 d, 复合热熔胶层:
挤出复合生产线的挤出机 7挤出乙烯 -丙烯酸甲酯 (EMA) 共聚物热熔胶, 在生产 线的复合工位处设置有臭氧发生器, 由臭氧发生器产生臭氧并通过臭氧管 12喷吹到挤 出的热熔胶的流延处,同时生产线的啮合辊 6将已经烘干的复合有聚乙烯亚胺的双向拉 伸聚丙烯薄膜 (BOPP) 薄膜输送至复合工位, 并与流延至复合工位部位的热熔胶通过 啮合辊 6挤压结合, 形成复合膜, 再经过冷却辊 8冷却 (温度为 20°C )处理, 热熔胶层的 厚度为 20 μ m;
步骤 e, 涂布增粘层:
从冷却辊 8传送过来的薄膜进入第二涂布辊 9, 第二涂布辊 9将放置在第二涂布槽 10内的固含量在 5%〜50%的聚氨酯乳液和含量在 0.1%〜10%的辅助成分混合物涂布薄 膜的热熔胶层表面上, 使其与薄膜结合, 然后复合后的薄膜进入烘干通道 5进行烘干处 理, 烘干后的增粘层的厚度为 0.5 m, 增粘层的涂布干重在 0.05〜0.5g/n 之间, 增粘 层中的辅助成分包括流平剂、 粘接促进剂等等;
步骤 f, 成品收卷:
通过收卷机 11 对加工完成的预涂膜进行收卷, 将收卷后的卷材预涂膜两侧边缘累 计切掉 20mm, 最终产品宽度为 1600mm, 厚度为 40.5 m, 厚度偏差 2 m。
根据本发明实施例的预涂膜, 通过在热熔胶层一侧涂布增粘层, 可以提高预涂膜与印 刷品之间的粘接性, 由此, 预涂膜的粘接力远远大于普通预涂膜, 适合应用于有后处理工 序要求、 表面润湿张力低以及在高速度下较难覆膜的印品。 另外, 由于根据本发明的预涂 膜粘接力较大, 使得利用该预涂膜覆膜后的压纹、 扎线等击凸工艺得以完美实现, 满足广 大客户的覆膜需求, 同时以聚氨酯乳液作为增粘层, 其可渗透进印刷品的油墨层, 并且可 以跟多种油墨有很好的粘接力, 对印刷品具有超高粘接特性, 对比现有技术, 此预涂膜具 有结构简单、 制作方便、 粘接性能高的优点。
在本说明书的描述中, 参考术语"一个实施例"、 "一些实施例"、 "示意性实施例"、 "示 例"、 "具体示例"、 或 "一些示例"等的描述意指结合该实施例或示例描述的具体特征、 结 构、 材料或者特点包含于本发明的至少一个实施例或示例中。 在本说明书中, 对上述术语 的示意性表述不一定指的是相同的实施例或示例。 而且, 描述的具体特征、 结构、 材料或 者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例,本领域的普通技术人员可以理解:在不脱离本 发明的原理和宗旨的情况下可以对这些实施例进行多种变化、 修改、 替换和变型, 本发明 的范围由权利要求及其等同物限定。

Claims

权利要求书
1、 一种双向拉伸增粘预涂膜, 包括:
基材;
中间层, 所述中间层设在所述基材上;
热熔胶层, 所述热熔胶层设在所述中间层上; 以及
增粘层, 所述增粘层设在所述热熔胶层上。
2、 根据权利要求 1所述的双向拉伸增粘预涂膜, 其特征在于, 所述基材为双向拉伸薄 膜, 所述中间层采用聚乙烯亚胺, 所述热熔胶层采用共聚聚乙烯, 所述增粘层采用含有辅 助成分的水性聚氨酯乳液。
3、 根据权利要求 2所述的双向拉伸增粘预涂膜, 其特征在于, 所述基材为双向拉伸聚 酯薄膜或双向拉伸尼龙薄膜或双向拉伸聚丙烯薄膜。
4、 根据权利要求 2 所述的双向拉伸增粘预涂膜, 其特征在于, 所述热熔胶层为乙烯- 醋酸乙烯共聚物、 乙烯-丙烯酸乙酯共聚物、 乙烯-丙烯酸共聚物、 乙烯 -丙烯酸甲酯共聚物 或低密度聚乙烯。
5、 根据权利要求 2所述的双向拉伸增粘预涂膜, 其特征在于, 所述增粘层为固含量在 5%〜50%的所述聚氨酯乳液和固含量在 0.1%〜10%的所述辅助成分的混合物, 所述辅助成 分包括流平剂、 粘接促进剂。
6、 根据权利要求 5所述的双向拉伸增粘预涂膜, 其特征在于, 所述聚氨酯乳液固含量 为 10%〜30%, 所述辅助成分的固含量为 1%〜5%。
7、根据权利要求 1〜5任一所述的双向拉伸增粘预涂膜, 其特征在于, 所述基材的厚度 为 10〜30 m, 所述中间层的厚度为 0.01〜0.03 m, 所述热熔胶层的厚度为 10〜35 μ m, 所述增粘层的厚度为 0.1〜0.5 μ m, 所述增粘层的涂布干重为 0.05〜0.5g/m2
8、 根据权利要求 7所述的双向拉伸增粘预涂膜, 其特征在于, 所述基材的厚度为 12〜 20 u rn, 所述中间层的厚度为 0.01〜0.02 m, 所述热熔胶层的厚度为 12〜25 μ m, 所述增 粘层的厚度为 0.2〜0.4 m, 所述增粘层的涂布干重为 0.1〜0.3g/m2
9、 根据权利要求 8所述的双向拉伸增粘预涂膜, 其特征在于, 所述中间层为涂布的固 含量在 0.4%〜1.5%的聚乙烯亚胺水溶液, 所述聚乙烯亚胺的分子式: (CH2CH2NH) n, 根 据聚合物的平均分子量在 1000〜10000的范围选择 n值。
10、 一种双向拉伸增粘预涂膜的生产方法, 其特征在于, 包括以下步骤:
a、 将基材卷材安放到放卷机上, 并通过气胀轴放卷;
b、 对基材待涂覆中间层的一面进行电晕处理, 以使基材的表面达因值为 36-54; c、 通过涂布辊涂布方式将中间层涂覆于基材的电晕处理表面上, 然后经过烘干通道对 其进行烘干;
d、 利用挤出机将热熔胶层挤出, 同时通过臭氧发生器将产生的臭氧喷吹到挤出的热熔 胶层材料的流延处, 流延处的热熔胶层通过啮合辊挤压结合于中间层的表面, 形成复合膜, 再经过冷却辊进行冷却;
e、 通过涂布辊涂布方式将增粘层涂覆于热熔胶层的表面;
f、 利用烘干通道将涂覆完毕的预涂膜进行烘干, 再利用收卷机对加工完成的预涂膜进 行收卷。
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