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US20140335315A1 - Method for manufacturing an underlay material, and underlay material - Google Patents

Method for manufacturing an underlay material, and underlay material Download PDF

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Publication number
US20140335315A1
US20140335315A1 US14/363,936 US201214363936A US2014335315A1 US 20140335315 A1 US20140335315 A1 US 20140335315A1 US 201214363936 A US201214363936 A US 201214363936A US 2014335315 A1 US2014335315 A1 US 2014335315A1
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US
United States
Prior art keywords
material layer
cellular plastic
underlay
plastic material
cellular
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.)
Abandoned
Application number
US14/363,936
Inventor
Thomas Virtanen
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Individual
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Individual
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Publication of US20140335315A1 publication Critical patent/US20140335315A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/185—Underlayers in the form of studded or ribbed plates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—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
    • B29C66/81433—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 being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • 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
    • B32B37/0076—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised in that the layers are not bonded on the totality of their surfaces
    • 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
    • B32B37/0076—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised in that the layers are not bonded on the totality of their surfaces
    • B32B37/0084—Point bonding
    • 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
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
    • 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
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • 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
    • B32B38/06—Embossing
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/186—Underlayers covered with a mesh or the like
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/22—Resiliently-mounted floors, e.g. sprung floors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of a sinusoidal wave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—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
    • B29C66/735—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 extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • B29C66/73521—Thickness, e.g. very thin of different thickness, i.e. the thickness of one of the parts to be joined being different from the thickness of the other part
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/748—Joining plastics material to non-plastics material to natural products or their composites, not provided for in groups B29C66/742 - B29C66/746
    • B29C66/7486—Paper, e.g. cardboard
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/022—Foam
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • 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
    • B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1016—Transverse corrugating
    • Y10T156/1021—Treating material of corrugated lamina or dry adhesive thereon to render tacky
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24496—Foamed or cellular component
    • Y10T428/24504—Component comprises a polymer [e.g., rubber, etc.]

Definitions

  • the invention relates to an underlay material to be set under a floor surface material, such as parquet and a laminate, and to its manufacturing method. More specifically, the invention relates to such an underlay material made up of two material layers.
  • underlay material for parquets and laminates
  • an underlay material made up of two material layers, said underlay material consisting of a substantially flat upper material layer, such as a plastic sheet, and of a flexible material, such as a cellular plastic material, bonded under the plastic sheet.
  • This type of underlay material is typically placed under parquet or a laminate and on top of a concrete floor surface, whereby the upper material layer provided by the plastic sheet of the underlay material functions as a vapor barrier against moisture rising from concrete or condensing in concrete.
  • the underlay material can also be used on top of a wood foundation.
  • the underlay material disclosed in the publication comprises a flexible cellular plastic layer, said cellular plastic layer having its bottom surface formed with a protrusion pattern for providing an air space between a concrete surface and the cellular plastic layer, and on top of the cellular plastic layer is laid a dense plastic sheet for a moisture insulator and vapor barrier.
  • Patent publication U.S. Pat. No. 6,837,014 discloses an optional underlay material, wherein the underlay material is composed of a membrane material, said membrane material having its bottom surface formed with projections of a cellular plastic material for providing an air space between a concrete surface and the membrane material.
  • the membrane material can be for example plastic, paper or board.
  • the manufacturing method of the invention comprises bonding a cellular plastic material to a sheet material simultaneously with the establishment of air provisions to be formed in the cellular plastic material, whereby melting of the cellular plastic material also bonds the cellular plastic material to the sheet material for providing a uniform underlay material.
  • the underlay manufacturing process is expedited and simplified as a separate operation for bonding the materials to each other is no longer necessary.
  • the manufacturing method of the invention is carried out by conveying the material layers through between two rollers or rolls placed in opposition to each other, whereby the roll placed against the cellular plastic material layer has its surface provided with protrusions, said protrusions of the roll, or the entire roll, having been heated.
  • the heated roll protrusions along with pressing between the rolls, melt the cellular plastic material layer at the protrusions to form grooves in the cellular plastic material and press the melted cellular plastic material to the attachment with the sheet material, thus bonding the molten cellular plastic material thereto.
  • the roll placed against the cellular plastic material has its protrusions preferably designed in view of establishing a uniform air provision pattern on the surface of cellular plastic.
  • This air provision pattern established on the cellular plastic material surface can be for example a pattern made up of two sets of continuous and parallel grooves, said grooves of different sets crossing each other.
  • the established air provision pattern made up of grooves for a cellular plastic material may comprise for example a plurality of squares or lozenges defined by the grooves.
  • Other types of patterns made up of air provision grooves can also be used, but in any case, the grooves preferably establish a continuous air provision structure across the entire underlay material.
  • the sheet material and the cellular plastic material useful in the solution of the invention are material webs, whereby these material webs are bonded in connection with manufacturing for an underlay material in a web-like form.
  • the sheet material may consist for example of plastic, paper and cardboard, such as for example polyethylene or polypropylene.
  • Preferred material thicknesses for a sheet material are 0.01-0.2 mm.
  • the cellular plastic material may consist of any appropriate cellular plastic, such as for example polyethylene.
  • the cellular plastic material has a material thickness preferably within the range of 1-5 mm.
  • the underlay material according to the invention has preferably a total thickness of 1-5 mm.
  • the manufacturing method of the invention is characterized by what is presented in the characterizing clause of claim 1 , as well as the underlay material of the invention by what is presented in the characterizing clause of claim 6 .
  • FIG. 1 shows schematically one underlay material manufacturing arrangement according to the invention
  • FIG. 2 shows schematically one underlay material of the invention in cross-section
  • FIGS. 3A and 3B illustrate examples of air provision patterns made up of grooves in an underlay material of the invention.
  • FIG. 1 shows schematically one manufacturing arrangement of the invention, which comprises a reel 2 composed of a sheet material 1 in the form of a web, a reel 4 composed of a cellular plastic material 3 in the form of a web, as well as a pair of press rolls 5 and 6 .
  • the sheet material 1 in the form of a web which in this example consists of plastic sheet, is fed from the reel 2 to a location between the pair of press rolls 5 and 6 with a top surface of the sheet material 1 placing itself against a surface of the smooth roller 5 .
  • the cellular plastic material 3 in the form of a web is fed from the reel 4 to a location between the pair of press rolls 5 and 6 , such that a top surface of the cellular plastic material 3 places itself against the sheet material 1 and its bottom surface against the roll 6 provided with protrusions 7 , 7 ′.
  • the manufacture of an underlay material 8 proceeds in the sequence of FIG. 1 simply in such a way that the web type sheet material 1 and cellular plastic material 3 are web-fed from the reels 2 and 4 to a location between the pair of press rolls 5 and 6 , the underlay material being produced thereafter simply by rotating the pair of press rolls 5 and 6 .
  • the pair of press rolls has the hot protrusions 7 , 7 ′ of its roll 6 melting some of the cellular plastic material 3 in areas coincident with the protrusions in response to both heat and pressure, whereby the cellular plastic material collapses and thereby bonds over its melted areas to the sheet material 1 at the latest when reaching a nip point of the pair of press rolls, i.e. at the point where a surface of the roll 5 and an end surface of the roll's 6 protrusions 7 , 7 ′ are at a minimum distance from each other.
  • the roll 6 has its protrusions 7 , 7 ′ designed in such a way that the protrusions 7 melt grooves in the cellular plastic material 3 longitudinal of its web and the protrusions 7 ′ melt grooves in the cellular plastic material 3 lateral of its web.
  • the grooves providing an air provision for the manufactured underlay material 8 make up a pattern of squares on the bottom surface of the cellular plastic material 3 .
  • Temperature of the roll 6 and/or its protrusions 7 , 7 ′ is set sufficiently high for melting the cellular plastic material 3 . This temperature may also accomplish partial melting of the sheet material 1 , which in turn enhances bonding of the cellular plastic material 3 to the sheet material 1 . In order to prevent excessive melting of the sheet material 1 , the roll 5 and/or its surface can be cooled as necessary. In view of melting for example a cellular plastic material of polyethylene, the temperature suitable for the roll 6 and/or its protrusions 7 , 7 ′ is about 140° C.
  • FIG. 2 shows schematically a cross-section of one underlay material 8 , which is manufactured with a solution according to the invention and made up of a sheet material 1 and a cellular plastic material 3 . It can be seen from this cross-section how a cellular plastic material 10 melted and packed on the bottom of grooves 9 in connection with manufacturing the underlay material 8 has bonded to the sheet material 1 for producing the underlay material 8 .
  • FIGS. 3A and 3B illustrate optional air provision patterns defined by grooves 9 made in a cellular plastic material on the bottom surface of an underlay material 8 .
  • the air provision-establishing continuous grooves 9 can be formed on the surface of a cellular plastic material quite arbitrarily for designing various patterns as long as such grooves nevertheless make up continuous paths across the surface area of the underlay material 8 for the expulsion and removal from under the underlay material of possible moisture building up on a bottom surface of the underlay material.
  • the solution of the invention is not bound to the use of plastic membranes as a sheet material 1 , but other suitable sheet materials can also be used, such as for example paper or cardboard.
  • the cellular plastic material 3 employed in the solution of the invention comprises preferably a suitable flexible foamed polymer, such as for example cellular polyethylene or polypropylene plastic 1-5 mm in thickness.
  • the finished underlay material 8 is preferably about 1-5 mm in thickness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

A method for manufacturing an underlay material (8) to be set under parquet or a laminate, the underlay material including a sheet material layer (1) and a flexible cellular plastic material layer (3) bonded under the sheet material layer, and a bottom surface of the cellular plastic layer being processed for providing an air space, whereby the bottom surface of the cellular plastic material layer (3) is processed by melting the cellular plastic material locally for providing an air space (9) and for simultaneously bonding the cellular plastic material layer to the sheet material layer (1). An underlay material manufactured by such a method is also described.

Description

  • The invention relates to an underlay material to be set under a floor surface material, such as parquet and a laminate, and to its manufacturing method. More specifically, the invention relates to such an underlay material made up of two material layers.
  • Regarding the underlay material for parquets and laminates, it is prior known to employ an underlay material made up of two material layers, said underlay material consisting of a substantially flat upper material layer, such as a plastic sheet, and of a flexible material, such as a cellular plastic material, bonded under the plastic sheet. This type of underlay material is typically placed under parquet or a laminate and on top of a concrete floor surface, whereby the upper material layer provided by the plastic sheet of the underlay material functions as a vapor barrier against moisture rising from concrete or condensing in concrete. The underlay material can also be used on top of a wood foundation.
  • One such underlay material and its manufacturing method is known from patent publication WO 2008/053077. The underlay material disclosed in the publication comprises a flexible cellular plastic layer, said cellular plastic layer having its bottom surface formed with a protrusion pattern for providing an air space between a concrete surface and the cellular plastic layer, and on top of the cellular plastic layer is laid a dense plastic sheet for a moisture insulator and vapor barrier.
  • Patent publication U.S. Pat. No. 6,837,014 discloses an optional underlay material, wherein the underlay material is composed of a membrane material, said membrane material having its bottom surface formed with projections of a cellular plastic material for providing an air space between a concrete surface and the membrane material. In the solution according to the publication, the membrane material can be for example plastic, paper or board.
  • A problem with the foregoing solutions is however the relatively complicated manufacturing process necessitated thereby. In addition, the achievement of a sufficient long-term durability as well as appropriate flexibility is problematic in the manufactured underlay material. Also, the establishment of appropriate air ducts and spaces to enable a removal or expulsion of moisture in several different directions is inconvenient and leads to a high-cost manufacturing process.
  • What has now been discovered in order to overcome this problem is a new manufacturing method for producing such an underlay material made up of a sheet material and a flexible cellular plastic material.
  • The manufacturing method of the invention comprises bonding a cellular plastic material to a sheet material simultaneously with the establishment of air provisions to be formed in the cellular plastic material, whereby melting of the cellular plastic material also bonds the cellular plastic material to the sheet material for providing a uniform underlay material. Hence, the underlay manufacturing process is expedited and simplified as a separate operation for bonding the materials to each other is no longer necessary.
  • Preferably, the manufacturing method of the invention is carried out by conveying the material layers through between two rollers or rolls placed in opposition to each other, whereby the roll placed against the cellular plastic material layer has its surface provided with protrusions, said protrusions of the roll, or the entire roll, having been heated. Thus, the heated roll protrusions, along with pressing between the rolls, melt the cellular plastic material layer at the protrusions to form grooves in the cellular plastic material and press the melted cellular plastic material to the attachment with the sheet material, thus bonding the molten cellular plastic material thereto.
  • The roll placed against the cellular plastic material has its protrusions preferably designed in view of establishing a uniform air provision pattern on the surface of cellular plastic. This air provision pattern established on the cellular plastic material surface can be for example a pattern made up of two sets of continuous and parallel grooves, said grooves of different sets crossing each other. Hence, the established air provision pattern made up of grooves for a cellular plastic material may comprise for example a plurality of squares or lozenges defined by the grooves. Other types of patterns made up of air provision grooves can also be used, but in any case, the grooves preferably establish a continuous air provision structure across the entire underlay material.
  • The sheet material and the cellular plastic material useful in the solution of the invention are material webs, whereby these material webs are bonded in connection with manufacturing for an underlay material in a web-like form.
  • The sheet material may consist for example of plastic, paper and cardboard, such as for example polyethylene or polypropylene. Preferred material thicknesses for a sheet material are 0.01-0.2 mm.
  • The cellular plastic material may consist of any appropriate cellular plastic, such as for example polyethylene. The cellular plastic material has a material thickness preferably within the range of 1-5 mm.
  • The underlay material according to the invention has preferably a total thickness of 1-5 mm.
  • More specifically, the manufacturing method of the invention is characterized by what is presented in the characterizing clause of claim 1, as well as the underlay material of the invention by what is presented in the characterizing clause of claim 6.
  • The invention will now be described more precisely by way of example with reference to the accompanying figures, in which
  • FIG. 1 shows schematically one underlay material manufacturing arrangement according to the invention,
  • FIG. 2 shows schematically one underlay material of the invention in cross-section, and
  • FIGS. 3A and 3B illustrate examples of air provision patterns made up of grooves in an underlay material of the invention.
    •
  • FIG. 1 shows schematically one manufacturing arrangement of the invention, which comprises a reel 2 composed of a sheet material 1 in the form of a web, a reel 4 composed of a cellular plastic material 3 in the form of a web, as well as a pair of press rolls 5 and 6.
  • In the arrangement of FIG. 1, the sheet material 1 in the form of a web, which in this example consists of plastic sheet, is fed from the reel 2 to a location between the pair of press rolls 5 and 6 with a top surface of the sheet material 1 placing itself against a surface of the smooth roller 5. The cellular plastic material 3 in the form of a web is fed from the reel 4 to a location between the pair of press rolls 5 and 6, such that a top surface of the cellular plastic material 3 places itself against the sheet material 1 and its bottom surface against the roll 6 provided with protrusions 7, 7′.
  • Either the entire roll 6 or the protrusions 7, 7′ of the roll 6 have been heated, for example with heating resistors, the cellular plastic material 3 set against the protrusions 7, 7′ being melted thereby.
  • The manufacture of an underlay material 8 proceeds in the sequence of FIG. 1 simply in such a way that the web type sheet material 1 and cellular plastic material 3 are web-fed from the reels 2 and 4 to a location between the pair of press rolls 5 and 6, the underlay material being produced thereafter simply by rotating the pair of press rolls 5 and 6. At this time, the pair of press rolls has the hot protrusions 7, 7′ of its roll 6 melting some of the cellular plastic material 3 in areas coincident with the protrusions in response to both heat and pressure, whereby the cellular plastic material collapses and thereby bonds over its melted areas to the sheet material 1 at the latest when reaching a nip point of the pair of press rolls, i.e. at the point where a surface of the roll 5 and an end surface of the roll's 6 protrusions 7, 7′ are at a minimum distance from each other.
  • In the embodiment of FIG. 1, the roll 6 has its protrusions 7, 7′ designed in such a way that the protrusions 7 melt grooves in the cellular plastic material 3 longitudinal of its web and the protrusions 7′ melt grooves in the cellular plastic material 3 lateral of its web. Hence, the grooves providing an air provision for the manufactured underlay material 8 make up a pattern of squares on the bottom surface of the cellular plastic material 3.
  • Temperature of the roll 6 and/or its protrusions 7, 7′ is set sufficiently high for melting the cellular plastic material 3. This temperature may also accomplish partial melting of the sheet material 1, which in turn enhances bonding of the cellular plastic material 3 to the sheet material 1. In order to prevent excessive melting of the sheet material 1, the roll 5 and/or its surface can be cooled as necessary. In view of melting for example a cellular plastic material of polyethylene, the temperature suitable for the roll 6 and/or its protrusions 7, 7′ is about 140° C.
  • FIG. 2 shows schematically a cross-section of one underlay material 8, which is manufactured with a solution according to the invention and made up of a sheet material 1 and a cellular plastic material 3. It can be seen from this cross-section how a cellular plastic material 10 melted and packed on the bottom of grooves 9 in connection with manufacturing the underlay material 8 has bonded to the sheet material 1 for producing the underlay material 8.
  • FIGS. 3A and 3B illustrate optional air provision patterns defined by grooves 9 made in a cellular plastic material on the bottom surface of an underlay material 8. As indicated by these patterns, the air provision-establishing continuous grooves 9 can be formed on the surface of a cellular plastic material quite arbitrarily for designing various patterns as long as such grooves nevertheless make up continuous paths across the surface area of the underlay material 8 for the expulsion and removal from under the underlay material of possible moisture building up on a bottom surface of the underlay material.
  • The solution of the invention is not bound to the use of plastic membranes as a sheet material 1, but other suitable sheet materials can also be used, such as for example paper or cardboard.
  • The cellular plastic material 3 employed in the solution of the invention comprises preferably a suitable flexible foamed polymer, such as for example cellular polyethylene or polypropylene plastic 1-5 mm in thickness.
  • The finished underlay material 8 is preferably about 1-5 mm in thickness.
  • Regarding the embodiments shown in the figures and described above, it should be appreciated that these are just examples of solutions according to the invention and, as such, by no means limiting the invention. The scope of protection for the invention is defined in the appended claims.

Claims (14)

1. A method for manufacturing an underlay material (8) to be set under parquet or a laminate, said underlay material consisting of a sheet material layer (1) and a flexible cellular plastic material layer (3) bonded under the sheet material layer, and a bottom surface of said cellular plastic layer being processed for providing an air space, characterized in that the bottom surface of the cellular plastic material layer (3) is processed by melting the cellular plastic material locally for providing an air space (9) and for simultaneously bonding the cellular plastic material layer to the sheet material layer (1).
2. A method according to claim 1, characterized in that the melting and bonding of the cellular plastic material layer (3) to the sheet material layer (1) is conducted by conveying the material layers through between rolls 5 and 6 set in opposition to each other, whereby the roll (6) placing itself against the cellular plastic material has its surface formed with uniform protrusions (7, 7′), the roll placing itself against the cellular plastic material layer having at least its protrusions heated.
3. A method according to claim 1, characterized in that the cellular plastic material layer (3) is by melting formed with at least two sets of continuous and parallel grooves (9), the grooves of various sets crossing each other to make up a pattern of squares or lozenges on the surface of the cellular plastic material layer.
4. A method according to claim 1, characterized in that the sheet material layer (1) is made of plastic, paper or cardboard and is preferably in the form of a material web.
5. A method according to claim 1, characterized in that the cellular plastic material layer (3) is made of a foamed polymer or polymer blend and is preferably in the form of a material web.
6. An underlay material (8) to be placed under parquet or a laminate, said underlay material consisting of a sheet material layer (1) and a flexible cellular plastic material layer (3) bonded under the sheet material layer, and said cellular plastic having recesses on its bottom surface for providing an air space (9), characterized in that the cellular plastic material layer (3) is bonded to the sheet material layer (1) only by melting the plastic material at the recesses (9) formed in the cellular plastic material layer.
7. An underlay material (8) according to claim 6, characterized in that the recesses of the cellular plastic material layer (3) consist of at least two sets of continuous and parallel grooves (9), the grooves of various sets crossing each other to make up a pattern of squares or lozenges.
8. An underlay material (8) according to claim 6, characterized in that the sheet material layer (1) is made of plastic, paper or cardboard.
9. An underlay material (8) according to claim 6, characterized in that the cellular plastic material layer (3) is made of a foamed polymer or polymer blend.
10. An underlay material (8) according to claim 6, characterized in that the underlay material (8) is in the form of a material web.
11. A method according to claim 2, characterized in that the cellular plastic material layer (3) is by melting formed with at least two sets of continuous and parallel grooves (9), the grooves of various sets crossing each other to make up a pattern of squares or lozenges on the surface of the cellular plastic material layer.
12. An underlay material (8) according to claim 7, characterized in that the sheet material layer (1) is made of plastic, paper or cardboard.
13. An underlay material (8) according to claim 7, characterized in that the cellular plastic material layer (3) is made of a foamed polymer or polymer blend.
14. An underlay material (8) according to claim 8, characterized in that the cellular plastic material layer (3) is made of a foamed polymer or polymer blend.
US14/363,936 2011-12-07 2012-12-07 Method for manufacturing an underlay material, and underlay material Abandoned US20140335315A1 (en)

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WO2015168785A1 (en) * 2014-05-08 2015-11-12 Dmx Plastics Limited Underlayment for a floor

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US10357950B2 (en) 2019-07-23
US20170151768A1 (en) 2017-06-01
WO2013083880A1 (en) 2013-06-13
EP2788562A4 (en) 2016-01-13

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