EP3189109A1 - Procédé pour augmenter l'adhésion entre la première surface d'un premier matériau en bande et une première surface d'un deuxième matériau en bande - Google Patents

Procédé pour augmenter l'adhésion entre la première surface d'un premier matériau en bande et une première surface d'un deuxième matériau en bande

Info

Publication number
EP3189109A1
EP3189109A1 EP15766070.5A EP15766070A EP3189109A1 EP 3189109 A1 EP3189109 A1 EP 3189109A1 EP 15766070 A EP15766070 A EP 15766070A EP 3189109 A1 EP3189109 A1 EP 3189109A1
Authority
EP
European Patent Office
Prior art keywords
sheet
web
plasma
adhesive
laminating
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.)
Withdrawn
Application number
EP15766070.5A
Other languages
German (de)
English (en)
Inventor
Arne Koops
Marco Kupsky
Klaus KEITE-TELGENBÜSCHER
Stephan ZÖLLNER
Thomas Schubert
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.)
Tesa SE
Original Assignee
Tesa SE
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 Tesa SE filed Critical Tesa SE
Publication of EP3189109A1 publication Critical patent/EP3189109A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • B29C65/483—Reactive adhesives, e.g. chemically curing 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
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/028—Non-mechanical surface pre-treatments, i.e. by flame treatment, electric discharge treatment, plasma treatment, wave energy or particle radiation
    • 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
    • B29C66/723—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 multi-layered
    • 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
    • B29C66/739—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 material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81262—Electrical and dielectric properties, e.g. electrical conductivity
    • B29C66/81263—Dielectric properties
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • 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
    • 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
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • 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
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J107/00—Adhesives based on natural rubber
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J121/00—Adhesives based on unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
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    • C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/383—Natural or synthetic rubber
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
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    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/003—PET, i.e. poylethylene terephthalate
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    • B29K2909/02—Ceramics
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    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/08—Glass
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/416—Additional features of adhesives in the form of films or foils characterized by the presence of essential components use of irradiation
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2407/00—Presence of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2407/00—Presence of natural rubber
    • C09J2407/006—Presence of natural rubber in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2407/00—Presence of natural rubber
    • C09J2407/008—Presence of natural rubber in the pretreated surface to be joined
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2421/00—Presence of unspecified rubber
    • C09J2421/008—Presence of unspecified rubber in the pretreated surface to be joined
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C09J2433/006—Presence of (meth)acrylic polymer in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C09J2433/008—Presence of (meth)acrylic polymer in the pretreated surface to be joined
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • C09J2475/006—Presence of polyurethane in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • C09J2475/008—Presence of polyurethane in the pretreated surface to be joined

Definitions

  • the invention relates to a method for increasing the adhesion between the first surface of a first sheet material and a first surface of a second sheet material.
  • the simple physical pretreatment techniques under atmospheric pressure are now used advantageously for the surface treatment of the joining part in order to achieve a higher anchoring force with a self-adhesive tape.
  • pretreatments of the surfaces may be performed. These pretreatments enable or strengthen the intermolecular forces of the joining partners.
  • pretreatments including chemical pretreatment by primer application or physical pretreatment by means of plasma or corona treatment.
  • G. Habenicht, 2009, Springer Verlag, Berlin / Heidelberg gives an introduction to surface treatment: The strength of adhesive bonds or the bond between surface and pressure-sensitive adhesive tape can be strengthened by chemical bridges.
  • organosilicon compounds silanes
  • the chemical primer is applied to the surface prior to application of the pressure-sensitive adhesive tape Since the intermolecular forces between the silane molecules are weak, the bifunctional adhesion promoter reacts below with the adherend surface (polycondensation reaction) and the adhesive molecules of the pressure-sensitive adhesive tape (polyaddition or polymerization reaction tion).
  • the reaction mechanism is shown schematically in the attached figure (see Figure 13).
  • Plasma is called the 4th state of matter. It is a partial or fully ionized gas. By supplying energy, positive and negative ions, electrons, other excited states, radicals, electromagnetic radiation and chemical reaction products are generated. Many of these species can cause changes in the surface to be treated. In sum, this treatment leads to an activation of the adherend surface, specifically a higher reactivity.
  • This treatment can be carried out both on the surface of the adherend, as well as on the adhesive. Also, a combination of both treatments is possible. Likewise, this treatment is used to increase the adhesion between the first surface of a first sheet material (eg an adhesive) and a first surface of a second sheet material (eg a backing material).
  • the corona treatment also called corona discharge, takes place as a high-voltage discharge with direct contact to the adherend surface. The discharge converts nitrogen from the ambient air into a reactive form. Due to the impact of the incident electrons, molecular cleavages occur at the adherend surface. The resulting free valences allow attachment of the reaction products of the corona discharge. These deposits allow improved adhesion properties of the adherend surface.
  • This treatment equivalent to the plasma, can take place on the adherend surface, adhesive mass of the pressure-sensitive adhesive tape and combined on both surfaces.
  • Plasma and corona pretreatments are described or mentioned, for example, in DE 2005 027 391 A1 and DE 103 47 025 A1.
  • DE 10 201 1075 470 A1 describes the physical pretreatment of adhesive and carrier / substrate.
  • the pretreatments are carried out separately before the joining step and can be of the same or different design.
  • the two-sided pretreatment achieves higher adhesion and anchoring forces than only substrate pretreatment.
  • DE 27 54 425 A reference is made to DE 24 60 432 A. New arrangements are described for the same task.
  • the plasma is formed between the two lamination rollers, one of which is dielectrically coated.
  • DE 24 60 432 A only the lamination of flat film webs by means of a thermoplastic polymer melt is described.
  • the plasma is formed according to claim 2 between two laminating rollers.
  • the dielectric is formed by at least one moving belt.
  • DE 41 27 723 A1 describes the production of multilayer laminates of plastic film webs and plastic plates, in which at least one joining side is treated with an aerosol corona directly before the joining step. As shown in Figure 1, this flow-driven corona can also be aimed directly at the lamination gap. As aerosol, monomers, dispersions, colloidal systems, emulsions or solutions are considered.
  • the prior art is characterized in that the pretreatments predominantly relate to the carrier material or the joining part in order to build up a higher anchoring force to the adhesive or to the self-adhesive tape.
  • the object of the invention is to find the stated positive effects in the case of physical surface modification of pressure-sensitive adhesives and support materials in order to achieve high-strength compounds.
  • the core of the task is to achieve a high anchorage between the pressure sensitive adhesive layer and the carrier material. This object is achieved by a method as shown in the main claim.
  • the subject of the dependent claims are advantageous developments of the subject invention.
  • the invention relates to a second, alternative method.
  • the invention relates to a method for increasing the adhesion between the first surface of a first sheet material and a first surface of a second sheet material, wherein The first sheet-like material and the second sheet-like material are fed continuously and in the same direction to a lamination nip in which the first sheet-like material and the second sheet-like material are laminated together with their respective first surface,
  • Both first surfaces of the first web-shaped material and the second web-like material are treated over the entire area with a plasma, preferably in such a way that the plasma acts continuously on the first two surfaces, starting before the laminating gap into the laminating gap,
  • the laminating gap is formed by a pressure roller and a counterpressure roller which builds up a counterpressure
  • At least one of the lateral surfaces of the rolls or both are equipped with a dielectric and
  • the first sheet-like material has an adhesive compound view arranged in the first sheet-like material to form the first surface of the first sheet-like material.
  • the plasma or the corona extends as far as the line where the two sheet-like materials are laminated together.
  • a corona treatment is meant and vice versa.
  • the principle of the plasma and corona pre-treatment units is based on the fact that a gas flow (air, gas, gas mixtures) is passed through the discharge site and the discharge itself or only the activated gas flow is brought to the treatment site. The activation of the two interfaces is thus carried out simultaneously with the lamination.
  • the generated chemical groups can produce the anchoring directly after the formation in the composite, without degradation or alteration of the surface by short-term storage in air influence.
  • pre-treatment equipment offer suitable corona and nozzle geometries, which can treat a laminating gap, but in principle only for a specific interface (gap, area, three-dimensional) are used.
  • suitable nozzle geometries from Plasmatreat include hole, slot and rotary nozzles.
  • Punch nozzle Dot-shaped plasma jet with a small treatment width, but intensive treatment
  • Ring outlet nozzle stationary, circular plasma jet
  • Rotary Nozzle Rotating-point plasma jet with broader
  • Rotary Nozzle Rotating-point plasma jet with lower
  • the outlet angle at a rotary nozzle influences the treatment width.
  • FIG. 8 shows two rotary nozzles which have different outlet angles for the concentrically arranged hole nozzles. This can be used to adjust a nozzle for specific laminating angles (pointed, flat).
  • pendulum nozzles are known and suitable.
  • nozzle types are known and suitable, for example the plasma curette (see FIG. 9).
  • This is a linear nozzle or a multiple arrangement of hole nozzles, which is brought by flow geometries as plasma curtain on the treatment surface. This can be applied with turbulent but also laminar flow, so that the laminating gap is intensively pretreated.
  • the SpotTEC from Tantec looks like this (see FIG. 10):
  • the principle of the unit is to bring the filamentary discharge between two ironing electrodes over the blowing out by means of compressed air or other gases / gas mixtures in the direction of the substrate. Suitable flow of the gas ensures that the pre-treatment penetrates deep into the pretreatment gap.
  • the vast pre-treatment systems are suitable for a laminating gap. A treatment of a wide laminating gap is possible if the pretreatment unit is arranged with several units.
  • the first and the second web-shaped material preferably run in the same direction in the lamination.
  • any point on the plasma-treated surface of the first sheet material and / or the second sheet material provides the path from the beginning of the plasma treatment to the laminating gap in a time less than 2.0 seconds, preferably less as 1.0 s, more preferably less than 0.5 s. Even times of less than 0.5 s, preferably less than 0.3 s, more preferably less than 0.1 s are possible according to the invention.
  • a third web-shaped material is fed to the laminating gap so that the second web-shaped material lies between the first and third web-shaped material.
  • the web direction of the third sheet material is the same as that showing the first and second sheet materials.
  • a multiplicity of further sheet-like materials are fed to the laminating gap in addition to the first and the second sheet-like material, wherein feeding takes place such that the individual sheet-like materials enter the laminating gap between the first and the second sheet-like material.
  • the individual further sheet-like materials are selected so that a non-adhesive carrier layer and a second non-adhesive carrier are never laminated directly to one another in the laminating gap.
  • the laminating gap is formed by a pressure roller and by a counterpressure roller, which builds up the counterpressure desired for lamination.
  • the rollers run in opposite directions, more preferably with the same peripheral speed.
  • the peripheral speed and the direction of rotation of the rollers are identical to the web speed and web direction of the first and second web-shaped material.
  • additional webs further preferably also have identical web speed and web direction.
  • the rolls preferably have the same diameter, more preferably the diameter is between 50 to 500 mm.
  • the lateral surface of the rollers is smooth, in particular ground.
  • the surface roughness of the rolls is preferably R a is less than 50 ⁇ , preferably less than 10 ⁇ .
  • R a is an industry standard unit for surface finish quality and represents the average height of the roughness, in particular the average absolute distance from the centerline of the roughness profile within the evaluation range.
  • the roll surface of the non-dielectric coated roll may be steel, stainless steel or chrome plated steel.
  • the surface can also be nickel plated or gold plated. It should only be electrically conductive and remain under the influence of plasma. The surface should show no corrosion under plasma action.
  • both rolls it is possible to cool or to heat one or both rolls with oil, water, steam, electrical or other tempering media in a preferred range of -40 ° C to 200 ° C. Preferably, both rolls are unheated.
  • the layer of the dielectric which covers the entire lateral surface (also referred to simply as a surface) of one or both rolls, ie over the entire circumference of the roll (s)
  • the dielectric encloses the roller (s) firmly, but may be removable, for example in the form of two half-shells.
  • the thickness of the layer of dielectric on the roller (s) is preferably between 1 to 5 mm.
  • the dielectric is not a traveling web, which covers the lateral surface of one of the rolls only in sections (or two adjacent webs covering the lateral surfaces of both rolls only in sections).
  • only one roller of the roller pair which forms the laminating gap is covered with a dielectric.
  • both rolls of the roll pair, which forms the laminating gap are covered with a dielectric.
  • the plasma is generated between one or more nozzles and the rollers, preferably when operating with compressed air or N 2 .
  • the plasma treatment takes place at a pressure which is close to (+/- 0.05 bar) or at atmospheric pressure.
  • the plasma treatment can take place in different atmospheres, wherein the atmosphere can also include air.
  • the treatment atmosphere may be a mixture of various gases selected from, inter alia, N 2 , O 2 , H 2 , CO 2 , Ar, He, ammonia, forming gases, gas mixtures with O 2 and H 2 , in which case water vapor or other constituents may also be added , No limitation is made by this sample listing.
  • the following pure or mixtures of process gases form a treatment atmosphere: N 2 , compressed air, O 2 , H 2 , C0 2 , Ar, He, ammonia, ethylene, siloxanes, acrylic acids and / or solvents, wherein in addition water vapor or other volatiles may be added.
  • N 2 and compressed air Preference is given to N 2 and compressed air.
  • the atmospheric pressure plasma can be formed with a mixture of process gases, the mixture preferably containing at least 90% by volume of nitrogen and at least one noble gas, preferably argon.
  • the mixture consists of nitrogen and at least one noble gas, more preferably the mixture consists of nitrogen and argon.
  • a possible variant of the plasma treatment is the use of a fixed plasma jet.
  • An equally possible plasma treatment uses an arrangement of several nozzles, offset if necessary, for gapless, partially overlapping treatment in a sufficient width.
  • Rotary or non-rotating round nozzles can be used here.
  • Linear electrodes with a gas outlet opening are particularly suitable, which advantageously extend over the entire length of the laminating gap.
  • the treatment distance of the plasma generator to the laminating gap is 1 to 100 mm, preferably 3 to 50 mm, particularly preferably 4 to 20 mm.
  • the plasma generator perpendicular to the plane which in turn is perpendicular to the plane defined by the roll axes plane, are shifted in height, preferably simultaneously in height and at a distance from the lamination.
  • the speed at which the webs are guided into the laminating gap between 0.5 to 200 m / min, preferably 1 to 50 m / min, more preferably 2 to 20 m / min (each including the specified margins of the areas ).
  • the web speeds of the first, second, third or other web are all the same.
  • the first sheet-like material has an adhesive compound view arranged in the first sheet-like material to form the first surface of the first sheet-like material.
  • the first sheet-like material may be a double-sided adhesive tape consisting of a first adhesive layer, a substrate and a second layer of adhesive, which is optionally covered with a so-called liner for protection.
  • a liner (release paper, release film) is not part of an adhesive tape or label, but only an aid for their production, storage or for further processing by punching.
  • a liner is not firmly bonded to an adhesive layer.
  • Single-layer double-sided self-adhesive tapes, so-called transfer tapes, are constructed in such a way that the pressure-sensitive adhesive layer forming the single layer contains no carrier and only siliconized with appropriate release materials, for example Release papers or release films is covered.
  • the first web-shaped material comprises a pressure-sensitive adhesive or consists of this, that is, an adhesive which allows a permanent connection with almost all adhesive reasons even under relatively weak pressure and can be removed from the primer again after use substantially residue-free.
  • a PSA is permanently tacky at room temperature, so it has a sufficiently low viscosity and high tack, so that it wets the surface of the respective Klebegrunds already at low pressure.
  • the adhesiveness of the adhesive is based on its adhesive properties and the removability on their cohesive properties.
  • the PSA layer is preferably based on natural rubber, synthetic rubber or polyurethanes, wherein the PSA layer preferably consists of pure acrylate or, in the majority, of acrylate.
  • the PSA may be blended with tackifiers to improve adhesive properties.
  • Tackifiers are, for example, hydrocarbon resins (for example polymers based on unsaturated C 5 or C 9 monomers), terpene-phenolic resins, polyterpene resins based on raw materials such as, for example, Oc- or ⁇ -pinene, aromatic resins such as coumarone-indene resins or resins based on Styrene or oc-methylstyrene such as rosin and its derivatives, for example, disproportionated, dimerized or esterified rosin, for example reaction products with glycol, glycerol or pentaerythritol, to name but a few.
  • hydrocarbon resins for example polymers based on unsaturated C 5 or C 9 monomers
  • terpene-phenolic resins polyterpene resins based on raw materials such as, for example, Oc- or ⁇ -pinene
  • aromatic resins such as coumarone-indene resins or resins based on Styrene or
  • resins without readily oxidizable double bonds such as terpene-phenolic resins, aromatic resins and particularly preferably resins which are prepared by hydrogenation, for example hydrogenated aromatic resins, hydrogenated polycyclopentadiene resins, hydrogenated rosin derivatives or hydrogenated polyterpene resins.
  • resins based on terpene phenols and rosin esters Preference is given to resins based on terpene phenols and rosin esters. Also preferred are tackifier resins having a softening point above 80 ° C according to ASTM E28-99 (2009). Particular preference is given to resins based on terpene phenols and rosin esters having a softening point above 90 ° C. according to ASTM E28-99 (2009). Typical amounts used are 10 to 100 parts by weight based on polymers of the adhesive.
  • the adhesive formulation may optionally be blended with sunscreen or primary and / or secondary anti-aging agents.
  • the adhesive composition may also be blended with conventional processing aids such as defoamers, deaerators, wetting agents or leveling agents. Suitable concentrations are in the range of 0.1 to 5 parts by weight based on the solids.
  • the second sheet-like material is a carrier material.
  • the carrier material used in the present case are preferably polymer films or film composites.
  • Such films / film composites can from all common to Plastics used in film production, by way of example but not by way of limitation:
  • Polyethylene polypropylene - especially the oriented polypropylene (OPP) produced by mono- or biaxial stretching, cyclic olefin copolymers (COC), polyvinyl chloride (PVC), polyesters - in particular polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), ethylene vinyl alcohol (EVOH), polyvinylidene chloride (PVDC), polyvinylidene fluoride (PVDF), polyacrylonitrile (PAN), polycarbonate (PC), polyamide (PA), polyethersulfone (PES) or polyimide (PI).
  • OPP oriented polypropylene
  • COC cyclic olefin copolymers
  • PVC polyvinyl chloride
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • EVOH ethylene vinyl alcohol
  • PVDC polyvinylidene chloride
  • PVDF polyvinylidene fluoride
  • PAN polyacrylonit
  • These materials are also preferably used as a carrier layer in the first sheet-like material, if in this a carrier is present.
  • Support material according to the invention comprises in particular all flat structures, for example, in two dimensions expanded films or film sections, tapes with extended length and limited width.
  • the second sheet-like material is viscoelastic.
  • a viscoelastic polymer layer can be considered to be a very high viscosity liquid which under pressure loading exhibits the flow behavior (also called “creep") .
  • Such viscoelastic polymers or such a polymer layer have in particular the ability to with slow force acting on the forces acting on them They are able to dissipate the forces into vibrations and / or deformations (which in particular may also be reversible, at least in part), thus “buffering" the forces acting on them and favoring a mechanical destruction by the acting forces to avoid, but advantageously at least reduce or at least delay the time of the occurrence of destruction.
  • expandable microballoons are used for foaming.
  • Microballoons are elastic hollow spheres which have a thermoplastic polymer shell. These balls are filled with low-boiling liquids or liquefied gas.
  • shell material find in particular polyacrylonitrile, PVDC, PVC or polyacrylates use.
  • Hydrocarbons of the lower alkanes, for example isobutane or isopentane, which are enclosed in the polymer shell as a liquefied gas under pressure, are particularly suitable as the low-boiling liquid
  • the second sheet material may also be or contain an adhesive.
  • the third sheet-like material has or consists of an adhesive composition, more preferably the adhesive is a pressure-sensitive adhesive.
  • adhesive adhesives
  • all adhesives can be used, as they are mentioned above.
  • a three-layered product is laminated together.
  • an adhesive or non-adhesive foam carrier based on acrylate (second sheet material) are laminated on both sides of PSAs (first and third sheet-like material).
  • the plasma treatment and the lamination take place simultaneously according to the preferred variant.
  • the plasma is formed in the lamination gap.
  • the radicals generated by the plasma on the surface of the carrier and the surface of the adhesive can not react with atmospheric oxygen and thus can not interact with the counterpart, since the time between generation and lamination goes to zero. This results in significant not previously expected adhesion increases, which can not be achieved by separate pretreatments.
  • the process can achieve an increase in the bond between the layers over a wide range of PSAs and substrates.
  • the process is robust and not dependent on optimized treatment for each mass and / or optimized treatment for each substrate.
  • the effect of the method taught is synergistic, ie more than the sum of the individual effects of the treatment of carrier material or adhesive.
  • FIG. 1 shows a method not according to the invention - the nozzle is not present. Otherwise, FIG. 1 reflects the method according to the invention. It is shown a lamination, which is formed by a pressure roller 1 1 and by a counter-pressure roller 12, which builds up the lamination for desired back pressure. The same size rollers 1 1, 12 run in opposite directions, with the identical peripheral speed.
  • a layer of a dielectric 1 1 1 is present.
  • the laminating gap is fed with a first sheet-like material 21 and a second sheet-like material 22 continuously and with the same web direction.
  • the first web-shaped material 21 and the second web-shaped material 22 are laminated together with their respective first surface, so that a laminate 23 is formed.
  • the first sheet-like material 21 is a layer of adhesive, the second sheet-like material 22 a carrier.
  • Both first surfaces of the first web-shaped material 21 and of the second web-shaped material 22 are treated over the entire surface with a plasma 31, in such a way that the plasma 31 acts continuously on the first two surfaces, starting before the laminating gap into the laminating gap.
  • Figure 2 shows a simplified section of Figure 1, in which of the rollers 1 1, 12 only a quarter is shown. Both roll surfaces are each equipped with a dielectric 1 1 1, 121.
  • the plasma 31 is generated by the inventively provided linear nozzle 33 due to the tension 32 between the rollers 1 1, 12 and the nozzle 33rd
  • the invention relates to a method for increasing the adhesion between the self-adhesive surface of a web-shaped Material and a surface of a substrate to which the sheet-like material is to be applied with the self-adhesive surface, wherein
  • the web-like material is fed continuously to a laminating gap, in which the web-shaped material of the self-adhesive surface is laminated to the surface of the substrate,
  • the self-adhesive surface of the web-like material and the surface of the substrate are treated over the entire surface with a plasma, in particular in such a way that the plasma continuously acts on the two surfaces starting from the laminating gap into the laminating gap,
  • the laminating gap is formed by a pressure element and the substrate,
  • the sheet-like material has an adhesive gauge which is disposed in the sheet material so as to be directly laminated to the substrate in direct contact with the ground.
  • the plasma or the corona extends as far as the line where the sheet-like material is laminated to the substrate.
  • the web-shaped material is preferably laminated to the substrate in plasma or corona.
  • any point on the plasma-treated surface of the sheet material and / or the substrate will provide the path from the beginning of the plasma treatment to the laminating gap in a time less than 2.0 seconds, preferably less than 1.0 s, more preferably less than 0.5 s. Even times of less than 0.5 s, preferably less than 0.3 s, more preferably less than 0.1 s are possible according to the invention.
  • a second sheet-like material is fed to the laminating gap so that the second sheet-like material lies between the (first) sheet-like material and the substrate.
  • the web direction of the second web-shaped material is the same as that showing the (first) web-shaped material.
  • a multiplicity of further sheet-like materials are fed to the laminating gap in addition to the (first) sheet-like material and the substrate, wherein feeding takes place such that the individual sheet-like materials between the (first) sheet-like material and the substrate into the laminating gap enter.
  • the individual further sheet-like materials are selected so that a non-adhesive carrier layer and a second non-adhesive carrier are never laminated directly to one another in the laminating gap.
  • the laminating gap is formed by a pressure element and the substrate.
  • the pressure element builds up the desired back pressure for lamination.
  • the pressure element is preferably a roller, more preferably with a diameter between 50 to 500 mm, a doctor blade or a pressure plate.
  • the doctor blade or the pressure plate may, for example, have a semi-cylindrical shaped laminating surface.
  • the diameter of the roller or of the semi-cylindrical shaped laminating surface is between 50 and 500 mm.
  • the lateral surface of the rollers or generally the surface of the pressure element is smooth, in particular ground.
  • the surface roughness is preferably R a is less than 50 ⁇ , preferably less than 10 ⁇ .
  • R a is an industry standard unit for surface finishing quality and represents the average height of the roughness, in particular the average absolute distance from the centreline of the roughness profile within the evaluation range. electrically or other temperature control media in a preferred range of -40 ° C to 200 ° C to cool or to heat.
  • the pressure element is preferably unheated.
  • the thickness of the layer of the dielectric on the pressure element is preferably between 1 to 5 mm.
  • the dielectric is not a traveling web, which only partially covers the lateral surface of the pressure element, in particular of the roller.
  • the sheet-like material has an adhesive gauge which is disposed in the sheet material so as to be directly laminated to the substrate in direct contact with the ground.
  • the sheet-like material may be a double-sided adhesive tape consisting of a first adhesive layer, a substrate and a second layer of adhesive, which is optionally covered with a so-called liner for protection.
  • the adhesive coating of the sheet-like material can be applied to a carrier material.
  • the abovementioned polymer films or film composites are preferably used as the carrier material.
  • the sheet-like material is viscoelastic.
  • An adhesive may be applied to the substrate, more preferably a pressure-sensitive adhesive.
  • adhesive adhesives, all adhesives can be used, as they are mentioned above.
  • a three-layered product is laminated to a substrate, preferably a three-layered product of an adhesive or non-adhesive foam carrier based on acrylate, are applied to both sides of pressure-sensitive adhesives.
  • FIG. 3 shows a laminating gap which is formed by a pressure roller 1 1, which builds up the counterpressure desired for lamination, and by the substrate 12. On the pressure roller 1 1, a layer of a dielectric 1 1 1 is present.
  • a sheet-like material 21 consisting of a layer of adhesive is laminated to the substrate 12.
  • Both surfaces of the web-like material 21 and the substrate 12 are treated over the entire surface with a plasma 31, in such a way that the plasma 31 continuously acts on the surfaces starting from the laminating gap into the laminating gap.
  • the platen roller 1 1 moves together with the linear electrode 33 at a continuous speed in the direction indicated by the arrow.
  • FIG. 4 differs from FIG. 1 in that, instead of a counterpressure roller 1 1, a pressure element in the form of a pressure plate 11 with a semi-cylindrical shaped laminating surface is used.
  • FIG. 5 differs from FIG. 3 in that, instead of the linear electrode 33, a nozzle 33 through which process gas can flow is used.

Abstract

L'invention concerne un procédé pour augmenter l'adhésion entre la première surface d'un premier matériau en bande et une première surface d'un deuxième matériau en bande, le premier matériau en bande et le deuxième matériau en bande étant amenés en continu et dans le même sens de circulation à une fente de stratification dans laquelle le premier matériau en bande et le deuxième matériau en bande sont stratifiés l'un sur l'autre avec respectivement leur première surface, les deux premières surfaces du premier matériau en bande et du deuxième matériau en bande étant traitées sur la totalité de leur aire avec un plasma, notamment de telle manière que le plasma agisse en continu sur les deux premières surfaces avant le début de la fente de stratification et jusqu'à l'intérieur de la fente de stratification. La fente de stratification est formée par un rouleau de pression et un contre-rouleau de pression et au moins une des surfaces des rouleaux, ou les deux, est dotée d'un diélectrique, le plasma ou le corona étant produit par une buse, le premier matériau en bande présentant une couche de masse adhésive, qui est disposée sur le premier matériau en bande de sorte que celle-ci forme la première surface du premier matériau en bande.
EP15766070.5A 2014-09-05 2015-09-01 Procédé pour augmenter l'adhésion entre la première surface d'un premier matériau en bande et une première surface d'un deuxième matériau en bande Withdrawn EP3189109A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014217821.5A DE102014217821A1 (de) 2014-09-05 2014-09-05 Verfahren zur Erhöhung der Adhäsion zwischen der ersten Oberfläche eines ersten bahnförmigen Materials und einer ersten Oberfläche eines zweiten bahnförmigen Materials
PCT/EP2015/069922 WO2016034571A1 (fr) 2014-09-05 2015-09-01 Procédé pour augmenter l'adhésion entre la première surface d'un premier matériau en bande et une première surface d'un deuxième matériau en bande

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EP3189109A1 true EP3189109A1 (fr) 2017-07-12

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EP15766070.5A Withdrawn EP3189109A1 (fr) 2014-09-05 2015-09-01 Procédé pour augmenter l'adhésion entre la première surface d'un premier matériau en bande et une première surface d'un deuxième matériau en bande
EP15771515.2A Withdrawn EP3189110A1 (fr) 2014-09-05 2015-09-07 Procédé pour augmenter l'adhésion entre la première surface d'un premier matériau en bande et une première surface d'un deuxième matériau en bande

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US (2) US20170283656A1 (fr)
EP (2) EP3189109A1 (fr)
CN (2) CN106660276A (fr)
DE (1) DE102014217821A1 (fr)
MX (2) MX2017002353A (fr)
TW (1) TW201623499A (fr)
WO (2) WO2016034571A1 (fr)

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DE102017200471A1 (de) * 2017-01-12 2018-07-12 Tesa Se Verfahren zur Verklebung von Profilen auf Substratoberflächen

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US20170282445A1 (en) 2017-10-05
CN106660276A (zh) 2017-05-10
WO2016034738A1 (fr) 2016-03-10
EP3189110A1 (fr) 2017-07-12
TW201623499A (zh) 2016-07-01
US20170283656A1 (en) 2017-10-05
DE102014217821A1 (de) 2016-03-10
CN107073922A (zh) 2017-08-18
MX2017002353A (es) 2017-05-17
MX2017002641A (es) 2017-05-30
WO2016034571A1 (fr) 2016-03-10

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