WO1995003723A1 - Attache dotee d'une robe a double usage - Google Patents

Attache dotee d'une robe a double usage Download PDF

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Publication number
WO1995003723A1
WO1995003723A1 PCT/US1994/008013 US9408013W WO9503723A1 WO 1995003723 A1 WO1995003723 A1 WO 1995003723A1 US 9408013 W US9408013 W US 9408013W WO 9503723 A1 WO9503723 A1 WO 9503723A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover sheet
fastener member
fastener
major surface
engaging members
Prior art date
Application number
PCT/US1994/008013
Other languages
English (en)
Inventor
Bradley D. Zinke
Timothy N. Narum
Marvin D. Lindseth
Carey J. Eckhardt
Original Assignee
Minnesota Mining And Manufacturing Company
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
Priority claimed from US08/207,896 external-priority patent/US5403747A/en
Application filed by Minnesota Mining And Manufacturing Company filed Critical Minnesota Mining And Manufacturing Company
Priority to AU12911/95A priority Critical patent/AU679309B2/en
Priority to CA 2166325 priority patent/CA2166325A1/fr
Priority to EP94922584A priority patent/EP0711119B1/fr
Priority to DE69410611T priority patent/DE69410611T2/de
Priority to JP50585694A priority patent/JPH09500807A/ja
Publication of WO1995003723A1 publication Critical patent/WO1995003723A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0069—Details
    • A44B18/0084—Double-sided
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0003—Fastener constructions
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0069—Details
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G27/00—Floor fabrics; Fastenings therefor
    • A47G27/04—Carpet fasteners; Carpet-expanding devices ; Laying carpeting; Tools therefor
    • A47G27/0437—Laying carpeting, e.g. wall-to-wall carpeting

Definitions

  • the present invention relates to a fastener arrangement having a dual purpose cover sheet.
  • hook and loop fasteners typically include a first fastener member having a base sheet and a plurality of hook members projecting therefrom, and a second fastener member having a base sheet and a plurality of loop members projecting therefrom. When engaged, the hook members catch the loop members to secure the two fastener members together.
  • a fastener consists of two fastener members, which may or may not be identical.
  • a hook and loop fastener includes a hook fastener member and a loop fastener member.
  • Exemplary of other fasteners of a similar type are those shown in U.S. Patent Nos. 3,009,235, 4,454,183, 4,761,318, 4,775,310, 4,894,060, and 5,058,247, which generally disclose a first fastener member having a base sheet and a plurality of headed stems, and a second fastener member having a base sheet and a plurality of loop members.
  • the respective fastener members are secured together in much the same way as hook and loop fasteners, whereby the headed stems engage or catch the loop members to interengage the two fastener members.
  • Fasteners of the type described above are often most useful when each fastener member is attached to a surface of an object, so that the two objects may be joined together by engaging the respective fastener members. Examples of such applications include fasteners for securing two portions of an article of clothing together, or for securing a piece of trim to a surface.
  • One popular method of attaching the respective fastener members to a surface is to provide a layer of pressure sensitive adhesive on the base sheet, such that the fastener member may be adhered to the surface of the object by the pressure sensitive adhesive.
  • Figure 1 illustrates such a conventional construction.
  • a fastener member 10 includes a base sheet 12 and a plurality of engaging members 14 (in the form of hooks) that project from the base sheet. Disposed on an opposite major surface of the base sheet 12 is a layer of pressure sensitive adhesive 16, which typically includes a release liner 18 to protect adhesive layer 16 prior to application of the fastener member 10 to a surface. To apply the fastener member 10 to a surface of an object, release liner 18 may be peeled away from the base sheet to expose the adhesive layer 16.
  • a cover sheet is also provided to prevent the engaging members from contacting and engaging with a surface unintentionally.
  • hook members have a tendency to engage with fabrics and textile materials, and thus a fastener member including hook members may unintentionally become attached to clothing or other fabric prior to use, which is undesirable.
  • a cover sheet 20, shown in Figure 1 covers the engaging members 14 and thus aids in preventing unintentional engagement of the engaging members with a surface prior to use.
  • both the cover sheet 20 and the release liner 18 must be removed before the fastener member may be used.
  • a fastener of the foregoing construction has been used in the field of carpet application.
  • a fastener member may be used to anchor carpet to a floor near a wall, or along a seam between adjacent sections of carpet. Loop-like textile structures are provided on the back of the carpet, and engaging members are provided on the fastener member to engage the loop-like structures and affix the carpet to the floor.
  • An example of a fastener used in conjunction with carpet is shown in Figures 2A through 2D.
  • Fastener ember 10 may be applied to a surface, such as a floor 30, by removing the release liner 18 and pressing the adhesive layer 16 into contact with the floor. Cover sheet 20 is typically left attached to the engaging members 14 while the carpet is being positioned and cut to size.
  • Cover sheet 20 thus prevents unintentional engagement between the fastener member and the carpet while the carpet is being manipulated in the vicinity of the fastener member. Furthermore, the engaging members are protected from contamination or damage due to exposure to people, dust, paint, fabrics, and the like.
  • cover sheet 20 may be peeled away from fastener 10, allowing loop structures 34 of carpet 32 to engage the engaging members 14.
  • Such a fastening arrangement in addition to affixing the carpet to the floor, also allows the carpet to be peeled away from the fastener member for cleaning or replacement.
  • the fastener product described above is widely used, it would be desirable to reduce material costs inherent in the product.
  • both the release liner and the cover strip must both be removed prior to the application of the fastener member, the application process can be relatively time consuming, and therefore expensive. It is also desirable to reduce waste associated with all products that are used by consumers. In view of these concerns, it is desirable to provide an inexpensive fastener member that is useful for applications such as those described above.
  • a fastener arrangement comprising a first fastener member, including a base sheet having a first major surface, and a plurality of engaging members attached to and projecting from the first major surface.
  • the fastener arrangement also includes a dual purpose cover sheet having first and second major surfaces, the first major surface including means for releasable affixation to the first fastener member, and a second fastener member overlying the first fastener member.
  • the second fastener member includes a base sheet having first and second major surfaces, a multiplicity of engaging members attached to and projecting from the first major surface, and an adhesive layer disposed on the second major surface of said base sheet. The adhesive layer releasably affixes the second fastener member to the second major surface of said cover sheet.
  • the method comprises the steps of providing a first fastener member, including a base sheet having first and second major surfaces, and a plurality of engaging members attached to and projecting from the first major surface; providing a dual purpose cover sheet having first and second major surfaces; releasably affixing the first major surface of the cover sheet to the first fastener member; providing a second fastener member including a base sheet having first and second major surfaces, a plurality of engaging members attached to and projecting from the first major surface, and an adhesive layer disposed on the second major surface; and releasably affixing the adhesive layer of the second fastener member to the second major surface of the cover sheet.
  • Figure 1 is a sectional view of a fastener member having a cover sheet and a release liner according to the prior art
  • Figures 2A through 2D are sectional views of sequential steps in the process of applying a conventional fastener member to a surface
  • Figure 3 is a sectional view of a fastener arrangement including a fastener member having a dual purpose cover sheet according to the present invention
  • Figures 4 through 7 are sectional views of alternate embodiments of the fastener member and dual purpose cover sheet of the present invention
  • Figure 8 is a sectional view of an alternate fastener arrangement according to the present invention.
  • Figure 9 is a perspective view of an exemplary engaging member for use with the present invention.
  • Figure 10 is a top plan view of an another alternative embodiment of the fastener member and dual purpose cover sheet according to the present invention.
  • Figure 11 is a partial sectional view taken across line 11—11 in Figure 10;
  • Figure 12 is a top plan view of a further alternative embodiment of the fastener member and dual purpose cover sheet according to the present invention.
  • Figure 13 is a partial sectional view taken across line 13—13 in Figure 12;
  • Figure 14 is a sectional view of another alternative embodiment of the fastener member and dual purpose cover sheet according to the present invention.
  • Figure 15 is a sectional view of a further alternative embodiment of the fastener member and dual purpose cover sheet according to the present invention.
  • Figure 16 is a sectional view of an additional alternative embodiment of the fastener member and dual purpose cover sheet according to the present invention.
  • the present invention relates broadly to a fastener member having a dual purpose cover sheet.
  • the dual purpose cover sheet functions both to be releasably affixed to the engaging members and/or base sheet of a first fastener member, and to be releasably affixed to a pressure sensitive adhesive layer of a second, overlying fastener member.
  • the single cover sheet of the present invention replaces the cover sheet and release
  • Fastener member 100 is provided, including a base sheet 102, a plurality of engaging members 104, a layer of pressure sensitive adhesive 106, and a dual purpose cover sheet 108.
  • base sheet 102 including a base sheet 102, a plurality of engaging members 104, a layer of pressure sensitive adhesive 106, and a dual purpose cover sheet 108.
  • a base sheet 102 including a base sheet 102, a plurality of engaging members 104, a layer of pressure sensitive adhesive 106, and a dual purpose cover sheet 108.
  • the numeric ranges for various values provided herein are intended only to be illustrative, rather than limiting, of the present invention.
  • the base sheet may be made from any suitable material and in any suitable size.
  • the base sheet may be made of polymer (e.g. polyethylene, polypropylene, polyester, nylon, or rubber) , textile materials (e.g. cotton), or metal.
  • the base sheet may be extruded, woven, knitted, stitched, or made of a nonwoven or other material, and may be made of two or more of these and other materials (e.g. a laminate, or a blend) .
  • the thickness of such a base sheet is preferably between 0.127 and 3.810 mm (0.005 and 0.150 in).
  • the width of the base sheet may be selected as desired, and widths in the range of 0.635 to 365 cm (0.250 to 144 in) can be used.
  • the dimensions and material for the base sheet are preferably selected so that the base sheet is flexible, to facilitate attachment of the fastener member to uneven surfaces.
  • a fastener member having a flexible base sheet may be coiled around a core 110 to form a roll.
  • rigid base sheets may also have applicability in the context of the invention in, for example, a stack of individual fastener members, as shown in Figure 8. The base sheet performs at least two functions.
  • the base sheet must hold the engaging members in place, so that the engaging members are not detached from the base sheet when the attached fastener members are separated from each other.
  • the base sheet must provide a surface for receipt of the layer of pressure sensitive adhesive. This surface may be smooth, striated, knurled, wavy or of any other suitable topographical design.
  • the engaging members of the present invention may be one or more of many different types of such members.
  • the engaging members may comprise hook portions, loop portions, structured surfaces, headed stems, woven or nonwoven fibers, or any other suitable structures.
  • Hook portions and loop portions such as those disclosed in U.S. Patent Nos. 3,009,235, 4,761,318, 4,775,310, 4,894,060, and 5,067,210, the contents of each of which is hereby incorporated by reference, may have utility in this regard.
  • structured surfaces such as those disclosed in U.S. Patent Nos. 4,875,259, 5,088,164, and 5,196,266, the contents of each of which is hereby incorporated by reference, are exemplary, and may be useful in the context of the present invention.
  • Headed stems are disclosed in patents such as U.S. Patent Nos. 3,138,841, 4,290,174, and 4,454,183, the contents of each of which is hereby incorporated by reference, and also may have utility in conjunction with the present invention.
  • Other suitable engaging members are also contemplated.
  • the various engaging members are attached to, bonded to, or formed from the base sheet, and should be suitable for engaging an opposed fastener member, as described previously.
  • the opposed fastener may be identical to or different from the subject fastener member, depending on the relative configurations and performance characteristics of each.
  • Adhesive Layer The adhesive layer is disposed on the major surface of the base sheet opposite the engaging members.
  • Adhesives that may be useful as the adhesive layer in the present invention include pressure sensitive and non-pressure sensitive adhesives.
  • the former class of adhesives are preferred, and are normally tacky at room temperature, and can be adhered to a surface by the application of light finger pressure.
  • the latter class of adhesives include those that are solvent, heat, or radiation activated.
  • the adhesives may be based on, for example, general compositions of polyacrylate, polyvinyl ether, rubber (e.g.
  • the adhesive layer may also contain, for example, tackifiers, plasticizers, fillers, antioxidants, stabilizers, pigments, curatives, crosslinkers, solvents, and the like.
  • the thickness of the layer of pressure sensitive adhesive may be selected as desired. Thicknesses in the range of 0.0025 to 0.102 cm (0.001 to 0.040 in) have been shown to have utility in the context of the present invention, although other adhesive layer thicknesses may also be used for certain applications.
  • the adhesive layer may be applied to the base sheet as known in the art.
  • the adhesive may be applied to the base sheet by solvent coating, extrusion (either separately from or simultaneously with the base sheet) , hot melt coating, calendaring, curtain coating, gravure or pattern coating, spray coating, lamination, pressure feed die coating, knife coating, or by any other suitable technique. It is expressly contemplated that the adhesive layer can be either continuous (such as a uniform layer) or discontinuous (such as strips or bands, dots, or another patterned or random arrangement of discrete adhesive portions) .
  • additional layers may also be provided. These additional layers may be provided between the adhesive layer and the base sheet (e.g. a primer layer to facilitate bonding between the adhesive layer and the base sheet) , or may be applied over the adhesive layer (e-g- an antistatic layer, a low adhesion backsize (LAB), or a detackifying agent) , or both. Of course, multiple layers of adhesive are also contemplated.
  • the particular characteristics of the adhesive layer may be selected to provide appropriate adhesion and release characteristics. In carpet applications, for instance, it may be desirable to provide an adhesive layer that is highly resistant to removal from the surface to which the fastener member is attached.
  • the characteristics of various adhesives are well known, and thus a suitable adhesive may be selected for a particular application.
  • the dual purpose cover sheet is preferably made of a thin, flexible material having two opposed major surfaces.
  • the first major surface should be suitable for releasable affixation to the engaging members and/or to the base sheet, and the second major surface should be suitable for releasable affixation to the pressure sensitive adhesive layer.
  • the first major surface of the dual purpose cover sheet may comprise any suitable material that may be releasably affixed to the engaging members and/or to the base sheet.
  • the engaging members comprise hook structures
  • the first major surface may include a plurality of loop structures for engagement with the hook structures.
  • the first major surface may comprise a pressure sensitive adhesive to enable adhesive affixation between the cover sheet and the engaging members.
  • Another alternative is to apply on the first major surface an adhesive, such as a polymer having a low melting point or a hot melt adhesive adapted for transition from a first non-tacky state at room temperature to a second tacky state when heated, and then to heat the cover sheet until the adhesive becomes tacky.
  • the warm and tacky adhesive is then applied to the engaging members and/or to the base sheet where it then cools and again becomes non-tacky.
  • the adhesive shown in Figure 8 is continuous on the cover sheet and may be either tacky or non-tacky at room temperature.
  • a further alternative is to affix the cover sheet directly to the engaging members and/or to the base sheet by fusing or bonding.
  • ultrasonic bonding is one method of attaching the cover sheet to the engaging member or as shown at 161' in Figure 15 to the base sheet.
  • Other methods which utilize heat to melt or fuse the cover sheet to the engaging members include dielectric bonding, radio frequency bonding and heat bonding.
  • Ultrasonic bonding uses high frequency sound waves which, when directed into the cover sheet and engaging members and/or base sheet, generate heat by causing ultrasonic vibrations in the materials and thereby fuse or melt the cover sheet and engaging members and/or base coat to each other. Ultrasonic bonding works best when the cover sheet and engaging members are constructed of similar materials. Ultrasonic bonding has the advantage of eliminating an otherwise necessary adhesive thereby saving material costs.
  • the means for releasably affixing the cover sheet to the engaging members may be continuous (a uniform arrangement of loop members or uniform adhesive layer, for example) or discontinuous (narrow bands or dots of adhesive, discrete sections of loop members, ultrasonic weld or bond patterns, for example) .
  • Figures 12 and 13 illustrate a fastener member in which the cover sheet has an adhesive dot coating 163 for affixation to the engaging members as will be further explained in Example Seven. If an adhesive is used to releasably engage the cover sheet to the engaging member, then it is preferable, for the reasons mentioned above, to use an adhesive which is not tacky at room temperature but which becomes tacky after heating.
  • Figure 14 illustrates an embodiment of the fastener arrangement in which the cover sheet is attached to the lateral edges of the base sheet and also to the engaging members using an adhesive such as a polymer having a low melting point or hot melt adhesive which has a first non-tacky consistency at room temperature and a second tacky consistency when heated.
  • an adhesive such as a polymer having a low melting point or hot melt adhesive which has a first non-tacky consistency at room temperature and a second tacky consistency when heated.
  • no engaging members are provided at the lateral edges of the base sheet 162 to permit the releasable affixation of the cover sheet thereto.
  • Figure 15 illustrates an embodiment of the fastener arrangement in which the cover sheet is attached to the lateral edges of the base sheet and also to the engaging members using a series of ultrasonic bonds along the lateral edges of the base sheet.
  • no engaging members are provided at the lateral edges of the base sheet 162 to permit releasable affixation of the cover sheet thereto.
  • Figure 16 illustrates an embodiment of the fastener arrangement in which the lateral edges of the cover sheet is attached to the lateral edges of the base sheet using a mechanical interlock of the type described in U.S Patent No. 5,088,164, which includes a pair of intermeshable closure members.
  • Other mechanical interlock mechanisms which may used include, for example, those described in U.S. Patent Nos. 5,138,750; 5,135,909; 5,056,933; 5,067,822; 5,066,444; and 5,181,461 which are hereby incorporated by reference.
  • Figures 14-16 illustrate the cover sheet attached directly to a top surface of the base sheet and/or to the engaging members it is within the intended scope of the present invention that the cover sheet may be attached to any selected portion of the base sheet and/or engaging members.
  • the cover sheet may be releasably attached to the side edges of the base sheet or it may be wrapped around the side edges and releasably attached to the major surface of the cover sheet opposite the engaging members.
  • the second major surface of the dual purpose cover sheet is adapted for releasable engagement with the pressure sensitive layer described above.
  • the second major surface may comprise, for example, a release coating such as silicone, an LAB coating (such as that described in U.S. Patent No. 2,532,011 (Dahlquist et al.)), a plasma coating, a TeflonTM coating, a structured surface, a low energy polymeric surface such as polyethylene, fluorocarbon additives, or no coating or structure at all.
  • these and other release features of the second major surface are preferably continuous over the area of the surface.
  • the dimensions of the dual purpose cover sheet may be selected to suit the particular application.
  • the dual purpose cover sheet be approximately 0.012 to 1.78 mm (0.0005 to 0.070 in) thick, and that the cover sheet be at least as wide as the wider of the pressure sensitive adhesive layer and the plurality of engaging members.
  • the dual purpose cover sheet is preferably thin, flexible, and tear resistant, so that the cover sheet may be withdrawn through a thin seam between sections of carpet, or along a wall.
  • the adhesion between the cover sheet and the engaging members should be sufficient to insure that the cover sheet is not inadvertently peeled away from the fastener.
  • Suitable materials for the dual purpose cover sheet may include, but are not limited to, treated or untreated paper (e.g.
  • crepe, rope tissue, repulpable tissue, and kraft e.g. cotton, rayon, polyester, glass, and nylon
  • woven fabric e.g. cotton, rayon, polyester, glass, and nylon
  • polymeric film e.g. cellophane, acetate, polyester, vinyl, polyvinyl chloride, polypropylene, polyethylene, and polyimide
  • nonwoven fabric e.g. aluminum, stainless steel, and lead
  • foam e.g. open and closed cell polyethylene, polyvinyl chloride, polyurethane, and polychloroprene
  • rubber e.g. neoprene
  • metallized film e.g. metallized film, or combinations or laminates of the foregoing.
  • the cover sheet may also include fibers, fillers, plasticizers, pigments, stabilizers, antioxidants, or mixtures thereof.
  • the cover sheet may additionally bear a primer layer, or be surface treated (e.g. corona discharge treated) to promote adhesion of other constituents to it.
  • the cover sheet may undergo an orientation processing step to improve its tensile strength characteristics, or be coated with an LAB to prevent bonding or transfer of the adhesive.
  • the LAB may be selected to facilitate removal of the fastener member from the dual purpose cover sheet, and may not be necessary for some adhesives.
  • an antistatic agent may be incorporated into the cover sheet, to prevent accumulation of static electricity on the sheet.
  • the characteristics of the dual purpose cover sheet are selected so that the cover sheet remains affixed to the engaging members and/or to the lateral edges of the base sheet of the underlying fastener member, rather than to the adhesive layer of the overlying fastener member, when the two fastener members are peeled apart. That is, the cover sheet should preferably release from the pressure sensitive adhesive layer and remain attached to the engaging members and/or the base sheet of the underlying layer of the fastener member. Stated yet another way, the adhesion force between the cover sheet
  • u C UBSTITUTE SHEET (RULE 26) and the layer of pressure sensitive adhesive is preferably less than the affixation force between the cover sheet and the engaging members of an adjacent fastener member.
  • a combination of adhesive and cover sheet may be selected such that the adhesive layer separates from the underlying cover sheet at a force of 24.6 g/cm width (0.138 lb/in width), and the cover sheet separates from the engaging members at a force of 70 g/cm width (0.38 lb/in width) .
  • the force required to separate the fastener member from the underlying dual purpose cover sheet may also be greater than the force required to separate the cover sheet from the underlying engaging members.
  • the force required to separate the fastener member and adhesive layer from the cover sheet was approximately 258 g/cm width (1.44 lbs/in).
  • the force required to separate the cover sheet from the underlying engaging members was approximately 20.9 g/cm width (0.12 lbs/in).
  • the fastener member was wound in a coil, the tensile forces in the cover sheet prevented the cover sheet from being lifted away from the engaging members when the overlying fastener member was peeled from the roll.
  • the relationship of the two force levels between fastener member and cover sheet, and between cover sheet and engaging members
  • Figure 4 shows an embodiment wherein the engaging members comprise a plurality of loop structures 120, which are attached to a base sheet 122 having a layer of pressure sensitive adhesive 124 disposed on the opposite surface.
  • Dual purpose cover sheet 126 includes a plurality of hook structures 128 adapted for releasable interengagement with the loop structures.
  • Figure 5 shows an embodiment wherein the engaging members comprise a structured surface 130, which is attached to a base sheet 132 having a layer of pressure sensitive adhesive 134 disposed on the opposite surface.
  • structured surface 130 and base sheet 132 are shown as being discrete components, they could instead be unitary.
  • Dual purpose cover sheet 136 includes an opposed, matching structured surface 138, which is adapted to intermesh with structured surface 130 to secure the cover sheet.
  • the respective structured surfaces may have one of many different patterns, which need not necessarily match each other.
  • the embodiments shown in Figures 6 and 7 include engaging members that are generally shaped as headed stems 140, which each include a stem 142 that projects from base sheet 144, and a head 146 formed at the distal end of stem 142.
  • a layer of pressure sensitive adhesive 145 is provided on the opposite surface of base sheet 144.
  • Heads 146 may be hemispherical, conical, or some other suitable shape, as known in the fastener art.
  • the dual purpose cover sheet may include loop structures 148 anchored to a base sheet 150, as shown in Figure 6, or mating headed stems 152 anchored to a base sheet 154, as shown in Figure 7.
  • the dual purpose cover sheet of the present invention has primary, although not exclusive, applicability to fastener members provided in roll form, as shown in Figure 3.
  • a first fastener member and a second fastener member may be spaced portions of a unitary, longitudinally extending fastener member, rather than individual, discrete fastener members.
  • Other fastener arrangements such as the stack arrangement shown in
  • Example One A fastener member was produced by the process described in U.S. Patent No. 4,894,060 (Nestegard) .
  • Both the base sheet and the engaging members of the fastener member comprised a polypropylene copolymer resin, available from the Shell Chemical Company of Houston, Texas, under the designation SRD 6-166.
  • the base sheet measured approximately 100 mm (4 in) wide, and 0.18 mm (0.007 in) thick, and included a plurality of T-shaped engaging members that projected from the base sheet.
  • Each T-shaped engaging member measured approximately 0.254 mm (0.010 in) high, and the engaging members were regularly spaced at a density of approximately 66 per square cm (425 per square inch) .
  • a layer of hot melt coated pressure sensitive adhesive approximately 0.254 mm (0.010 in) thick was extruded by a single screw extruder onto the base sheet on the major surface opposite the engaging members, at a temperature of approximately 154.5° C (310° F) .
  • the hot melt adhesive used was a KratonTM styrene-butadiene-styrene rubber-based adhesive, comprising the following elements: Material % (by weight) Available Through
  • the adhesive layer was allowed to cool at room temperature.
  • the dual purpose cover sheet was provided, and was applied to the engaging members.
  • the cover sheet was made of cast polypropylene and coated with a rubber based adhesive on one side, for affixation to the engaging members, and a silicone release agent on the other side, to permit releasable engagement with the pressure sensitive adhesive layer.
  • the cover sheet measured approximately 13.7 cm (4.5 in) wide, and 0.178 mm (0.007 in) thick.
  • a cover sheet of this type is available from the Minnesota Mining and Manufacturing Company under the designation KR-0261.
  • the fastener member was wound on a core having a silicone release agent on the outer cylindrical surface, such that the adhesive layer adhered the fastener member to the core.
  • the cover sheet received the pressure sensitive layer of the fastener member above it, as shown generally in Figure 3.
  • the fastener member including the cover sheet was peeled from the core and applied to a surface.
  • an object such as another fastener member, or a piece of carpet, for example
  • the cover sheet was removed to expose the engaging members. The object could then be releasably attached to the engaging members.
  • the foregoing fastener arrangement was found to perform satisfactorily.
  • a fastener member was prepared as described above with reference to Example One, with the following exceptions.
  • the dual purpose cover sheet number KR-0261 was replaced by a dual purpose cover sheet including a base sheet having protruding nylon tricot loop members, available from the Guilford Mills Co. of Greensboro, North Carolina, under the designation #31835.
  • the opposite (back) surface of the cover sheet was corona treated with a 400 watt corona treatment station (operating at 13.5 amps, 75 volts, and a frequency of 27 kHz) while travelling at 0.25 m/s (50 ft/min) .
  • the back surface of the cover sheet was coated with approximately 0.05 grains of silicone per 15,000 mm 2 (24 in 2 ), to facilitate release of an overlying adhesive layer.
  • the silicone was available from the Dow Chemical Company of Midland, Michigan, under the designations #7850 (97.2% by weight) and #7488 (2.8% by weight). The silicone was cured at approximately 107° C (225° F) for 15 seconds.
  • the cover sheet thus prepared was applied to the fastener member described in Example One, with the loop members of the cover sheet engaging with the engaging members of the fastener member.
  • the fastener member and dual purpose cover sheet were wound on a core in the manner described in Example One, and were aged at room temperature for three weeks.
  • the fastener member was found to perform satisfactorily. It should be noted that the foregoing construction may not be suitable for all applications, because the cover sheet is highly permeable, which allows air flow past the adhesive layer of the fastener member. This air flow can cause some adhesives to lose tack, as is known in the art. Thus, adhesives used with the foregoing construction should be selected to be resistant to the potentially deleterious effects of air flow.
  • Example Three A fastener member was prepared as described above with reference to Example One, with the following exceptions.
  • the KR-0261 dual purpose cover sheet was replaced by a biaxially oriented polypropylene film tape cover sheet.
  • the tape cover sheet was prepared with a pressure sensitive adhesive on one surface, for application to the engaging members, and with an LAB coat on the opposite surface, for application to the pressure sensitive adhesive layer of an overlying fastener member.
  • a tape of such a construction is available from the Minnesota Mining and Manufacturing Company, under the designation HighlandTM Brand Utility Box Sealing Tape #371.
  • the fastener member and the tape cover sheet were thereafter wound on a core in the manner described in Example One, and was aged for one week at room temperature.
  • the fastener member was difficult to unwind, because of the high adhesion between the pressure sensitive adhesive layer of the fastener member and the LAB side of the tape cover sheet. It is believed that the use of a less aggressive adhesive on the fastener member, or a more effective LAB on the cover sheet, would result in better unwinding performance.
  • Example Four A fastener member was prepared as described above with reference to Example One, with the following exceptions.
  • the KR-0261 dual purpose cover sheet was replaced by a base sheet having loop members, comprising a polypropylene copolymer sheet with polypropylene loop members projecting therefrom.
  • the overall thickness of the cover sheet was 1.65 mm (0.065 in), including a base sheet measuring approximately 0.051 mm (0.002 in) thick and loop members measuring approximately 1.6 mm (0.063 in) high.
  • the density of the loop members was approximately 33 g/m 2 (0.062 lb/yd 2 ).
  • a product of this general type is particularly described in PCT Patent Publication No. 92/01401.
  • the surface of the cover sheet opposite the loop members was corona treated with a 400 watt corona treatment station (operating at 13.5 amps, 75 volts, and a frequency of 27 kHz) while travelling at 0.25 m/s (50 ft/min) .
  • the back surface was coated with approximately 0.022 grains of silicone per 15,000 mm 2 (24 in 2 ), to facilitate release of an overlying adhesive layer.
  • the silicone was available from the Dow Chemical Company under the designations #7850 (97.2% by weight) and #7488 (2.8% by weight). The silicone was cured at approximately 107° C (225° F) for 15 seconds.
  • the cover sheet thus prepared was applied to the fastener member described in Example One, with the loop members of the cover sheet engaging with the engaging members of the fastener member.
  • the fastener member and dual purpose cover sheet were wound on a core in the manner described in Example One, and were aged at room temperature for three weeks. The fastener member was found to perform satisfactorily.
  • Example Five A fastener member was prepared as described above with reference to Example One, with the following exceptions.
  • the KR-0261 dual purpose cover sheet was replaced by a biaxially oriented polyester film tape cover sheet.
  • the tape cover sheet was prepared with a pressure sensitive adhesive on one surface, for application to the engaging members, and with an LAB coat on the opposite surface, for application to the pressure sensitive adhesive layer of an overlying fastener member.
  • a tape of such a construction is available from the Minnesota Mining and Manufacturing Company, under the designation #353.
  • the adhesive side of the tape cover sheet was applied to the uppermost portions of the engaging members, and thus the LAB side was presented for receipt of the pressure sensitive adhesive layer of an overlying fastener member.
  • the fastener member and the.tape cover sheet were thereafter wound on a core in the manner described in Example One, and was aged for one week at room temperature. The fastener member was difficult to unwind, because of the high adhesion between the pressure sensitive adhesive layer of the fastener member and the
  • a fastener member was prepared as described above with reference to Example One, with the following exceptions.
  • the dual purpose cover sheet number KR-0261 was replaced by a polypropylene liner having a thickness of 0.127 mm (0.005 in).
  • the polypropylene liner was silicone coated on one side so that it acted as the cover sheet.
  • the non-silicone coated surface was placed face down on the engaging members of the hook fastening member.
  • the hook fastening member was produced using a polypropylene copolymer designated Shell 7C55H, available from Shell Chemical Company, Houston, Texas.
  • the non- silicone side of the cover sheet was then ultrasonically bonded to the hook fastening members using a sonic horn with the circular pattern shown in Figure 10.
  • FIG 11 illustrates the fusion between the cover sheet and the fastening members wherein the fastening members are deformed and fused to the cover sheet.
  • the ultrasonic bonding unit used was designated Model# 8400, available from the Branson Sonic Power Company, Danbury, Connecticut. The ultrasonic bonding was performed using a pressure of 30 PSI, a weld time of 2 seconds and a hold time of 2 seconds.
  • the cover sheet was bonded well enough so that the pressure sensitive adhesive of a second hook fastening member could be applied on the silicone release surface of the dual purpose cover sheet and then removed without dislodging the cover sheet.
  • the dual purpose cover sheet however could be removed by hand to expose the engaging members of the first hook fastening member.
  • Other fusion or bonding methods wherein heat is generated to melt or fuse the cover sheet to the engaging member, although not tested, are contemplated and intended to be within the scope of the present invention.
  • Example Seven A fastener member was prepared as described above with reference to Example One, with the following exceptions.
  • the dual purpose cover sheet number KR-0261 was replaced by a polypropylene liner having a thickness of 0.127 mm (0.005 in).
  • the polypropylene liner was silicone coated on one side so that it acted as the cover sheet.
  • the non-silicone coated side of the cover sheet was dot coated with 3M Jet-melt ® adhesive #3747 (available from Minnesota Mining and Manufacturing Company, St. Paul, Minnesota) using a 3M PolygunTM TC Hot Melt Applicator (available from Minnesota Mining and Manufacturing Company) .
  • the adhesive was dot coated using the pattern shown in Figure 12.
  • FIG. 13 illustrates the adhesive bond between the fastening members and the cover sheet.
  • the cover sheet After bonding of the cover sheet to the engaging members the cover sheet was bonded well enough so that the pressure sensitive adhesive of a second hook fastening member could be applied on the silicone release surface of the dual purpose cover sheet and then removed without dislodging the cover sheet.
  • the dual purpose cover sheet however could be removed by hand to expose the engaging members of the first hook fastening member.

Landscapes

  • Adhesives Or Adhesive Processes (AREA)
  • Adhesive Tapes (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)

Abstract

Un dispositif d'attache comporte une première attache (100) dotée d'un papier support (102) sur lequel se projettent de multiples éléments d'accrochage (104). Il comporte aussi une couche d'un adhésif sensible à la pression (106), placée à la surface d'un papier support disposé en regard des éléments d'accrochage, ainsi qu'une robe à double usage (108). Celle-ci protège la couche adhésive de la première attache et aussi les éléments d'accrochage d'une deuxième attache sous-jacente.
PCT/US1994/008013 1993-07-27 1994-07-18 Attache dotee d'une robe a double usage WO1995003723A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU12911/95A AU679309B2 (en) 1993-07-27 1994-07-18 Fastener member with a dual purpose cover sheet
CA 2166325 CA2166325A1 (fr) 1993-07-27 1994-07-18 Element de fixation a feuille de recouvrement double usage
EP94922584A EP0711119B1 (fr) 1993-07-27 1994-07-18 Attache dotee d'une robe a double usage
DE69410611T DE69410611T2 (de) 1993-07-27 1994-07-18 Verschlusselement mit einer doppelzweckdeckfolie
JP50585694A JPH09500807A (ja) 1993-07-27 1994-07-18 二目的カバーシートを有する留め具部材

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9798493A 1993-07-27 1993-07-27
US08/207,896 US5403747A (en) 1992-04-01 1994-03-07 Protein assay using microwave energy
US08/097,984 1994-03-08
US08/207,596 1994-03-08

Publications (1)

Publication Number Publication Date
WO1995003723A1 true WO1995003723A1 (fr) 1995-02-09

Family

ID=26793840

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/008013 WO1995003723A1 (fr) 1993-07-27 1994-07-18 Attache dotee d'une robe a double usage

Country Status (1)

Country Link
WO (1) WO1995003723A1 (fr)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0754415A3 (fr) * 1993-04-16 1997-09-24 Minnesota Mining & Mfg Ensemble de emmagasinage/distribution d'un matériau de fixation à boucles
EP0832573A1 (fr) * 1996-09-30 1998-04-01 Ykk Corporation Fermeture à surface d'accrochage et couche comportant une telle fermeture
WO1999032005A1 (fr) * 1997-12-23 1999-07-01 Minnesota Mining And Manufacturing Company Element de fixation collant auto-adhesif, articles comprenant un element de fixation collant auto-adhesif et procedes correspondants de fabrication et d'utilisation
WO1999059441A1 (fr) * 1998-05-15 1999-11-25 Gottlieb Binder Gmbh & Co. Partie de fermeture par attache
WO1999035943A3 (fr) * 1998-01-16 1999-11-25 Tac Fast Systems Sa Structure et support de revetement de sol constitues de planches fixation
BE1011826A3 (fr) * 1996-04-09 2000-02-01 Vorwerk Co Interholding Systeme de pose de tapis ou de dalles de tapis.
FR2784566A1 (fr) * 1998-10-19 2000-04-21 Ecolab Inc Traitement adhesif pour tapis de sol
WO2000050229A1 (fr) * 1999-02-25 2000-08-31 3M Innovative Properties Company Bande a regions distinctes dotees de pics
EP1060682A1 (fr) * 1999-06-15 2000-12-20 Tape Industries Assemblage d'attache mecanique
US6298624B1 (en) 1996-07-19 2001-10-09 Tac-Fast Georgia, L.L.C. Anchor sheet and anchor sheet module
US6306477B1 (en) 1996-07-19 2001-10-23 Tac-Fast Georgia, L.L.C. Covering module and anchor sheet
US6419668B2 (en) 1996-09-30 2002-07-16 Ykk Corporation Surface fastener and paper diaper using the surface fastener
US6460303B1 (en) 1996-07-19 2002-10-08 Tac-Fast Georgia L.L.C. Hook and loop anchor sheet module with overlapped edges and sufficient mass to resist buckling
WO2003039868A1 (fr) * 2001-11-05 2003-05-15 3M Innovative Properties Company Bandes composites presentant des zones polymeres elastiques
EP1352582A1 (fr) * 2002-04-12 2003-10-15 Magis S.R.L. Un article avec une fermeture réversible du type à surface d'accrochage
US6692674B1 (en) 2002-11-27 2004-02-17 Velcro Industries B.V. Discrete fastener regions
US7056462B2 (en) 2001-05-29 2006-06-06 Velcro Industries B.V. Forming discrete fastener element regions
US7185473B2 (en) 1996-07-19 2007-03-06 Tac-Fast Georgia, L.L.C. Anchor sheet and anchor sheet module
US8691360B2 (en) 2001-12-13 2014-04-08 Tac-Fast Georgia L.L.C. Structures for creating spaces while installing anchor sheet and attachment piece subfloors
US10024056B2 (en) 2011-04-15 2018-07-17 Tac-Fast Georgia L.L.C. Methods and systems for engagement of decorative covering
US10349707B2 (en) 2016-07-05 2019-07-16 Alfatex Nv Fastener tape

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1513722A (fr) * 1966-02-10 1968-02-16 Minnesota Mining & Mfg Dispositifs adhésifs de fixation
FR2364004A1 (fr) * 1976-09-08 1978-04-07 Louison Et Cie V Ruban d'attache auto-fixable
WO1986003164A1 (fr) * 1984-11-20 1986-06-05 Velcro Usa Inc. Procede et appareil de preparation d'attaches separables pour les attacher a d'autres objets

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1513722A (fr) * 1966-02-10 1968-02-16 Minnesota Mining & Mfg Dispositifs adhésifs de fixation
FR2364004A1 (fr) * 1976-09-08 1978-04-07 Louison Et Cie V Ruban d'attache auto-fixable
WO1986003164A1 (fr) * 1984-11-20 1986-06-05 Velcro Usa Inc. Procede et appareil de preparation d'attaches separables pour les attacher a d'autres objets

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0754415A3 (fr) * 1993-04-16 1997-09-24 Minnesota Mining & Mfg Ensemble de emmagasinage/distribution d'un matériau de fixation à boucles
BE1011826A3 (fr) * 1996-04-09 2000-02-01 Vorwerk Co Interholding Systeme de pose de tapis ou de dalles de tapis.
US6802167B2 (en) 1996-07-19 2004-10-12 Tac-Fast Georgia, L.L.C. Anchor sheet framework and subflooring
US7185473B2 (en) 1996-07-19 2007-03-06 Tac-Fast Georgia, L.L.C. Anchor sheet and anchor sheet module
US7185465B2 (en) 1996-07-19 2007-03-06 Tac-Fast Georgia, L.L.C. Covering module and anchor sheet
US7194843B2 (en) 1996-07-19 2007-03-27 Tac-Fast Georgia, Llc Anchor sheet and anchor sheet module
US6395362B1 (en) 1996-07-19 2002-05-28 Tac-Fast Georgia, L.L.C. Anchor sheet framework and subflooring
US6797353B1 (en) 1996-07-19 2004-09-28 Tac-Fast Georgia, L.L.C. Covering module and anchor sheet
US6460303B1 (en) 1996-07-19 2002-10-08 Tac-Fast Georgia L.L.C. Hook and loop anchor sheet module with overlapped edges and sufficient mass to resist buckling
US6298624B1 (en) 1996-07-19 2001-10-09 Tac-Fast Georgia, L.L.C. Anchor sheet and anchor sheet module
US6306477B1 (en) 1996-07-19 2001-10-23 Tac-Fast Georgia, L.L.C. Covering module and anchor sheet
EP0832573A1 (fr) * 1996-09-30 1998-04-01 Ykk Corporation Fermeture à surface d'accrochage et couche comportant une telle fermeture
US6419668B2 (en) 1996-09-30 2002-07-16 Ykk Corporation Surface fastener and paper diaper using the surface fastener
US6159596A (en) * 1997-12-23 2000-12-12 3M Innovative Properties Company Self mating adhesive fastener element articles including a self mating adhesive fastener element and methods for producing and using
WO1999032005A1 (fr) * 1997-12-23 1999-07-01 Minnesota Mining And Manufacturing Company Element de fixation collant auto-adhesif, articles comprenant un element de fixation collant auto-adhesif et procedes correspondants de fabrication et d'utilisation
WO1999035943A3 (fr) * 1998-01-16 1999-11-25 Tac Fast Systems Sa Structure et support de revetement de sol constitues de planches fixation
US6460229B1 (en) 1998-05-15 2002-10-08 Gottlieb Binder Gmbh & Co. Pressure-sensitive fastening part
WO1999059441A1 (fr) * 1998-05-15 1999-11-25 Gottlieb Binder Gmbh & Co. Partie de fermeture par attache
US6630042B2 (en) 1998-10-19 2003-10-07 Ecolab Inc. Tackifying treatment for floor mats
FR2784566A1 (fr) * 1998-10-19 2000-04-21 Ecolab Inc Traitement adhesif pour tapis de sol
WO2000050229A1 (fr) * 1999-02-25 2000-08-31 3M Innovative Properties Company Bande a regions distinctes dotees de pics
US6962635B2 (en) 1999-02-25 2005-11-08 3M Innovative Properties Company Method for making a stem web
EP1060682A1 (fr) * 1999-06-15 2000-12-20 Tape Industries Assemblage d'attache mecanique
FR2794948A1 (fr) * 1999-06-15 2000-12-22 Tape Ind Assemblage d'attache mecanique
US7451532B2 (en) 2001-05-29 2008-11-18 Velcro Industries B.V. Forming discrete fastener element regions
US7056462B2 (en) 2001-05-29 2006-06-06 Velcro Industries B.V. Forming discrete fastener element regions
EP1604817A2 (fr) * 2001-11-05 2005-12-14 3M Innovative Properties Company Fermeture de couche par patte avec des régions polymères élastiques
WO2003039868A1 (fr) * 2001-11-05 2003-05-15 3M Innovative Properties Company Bandes composites presentant des zones polymeres elastiques
EP1604817A3 (fr) * 2001-11-05 2009-05-06 3M Innovative Properties Company Fermeture de couche par patte avec des régions polymères élastiques
US8691360B2 (en) 2001-12-13 2014-04-08 Tac-Fast Georgia L.L.C. Structures for creating spaces while installing anchor sheet and attachment piece subfloors
EP1352582A1 (fr) * 2002-04-12 2003-10-15 Magis S.R.L. Un article avec une fermeture réversible du type à surface d'accrochage
US6692674B1 (en) 2002-11-27 2004-02-17 Velcro Industries B.V. Discrete fastener regions
US10024056B2 (en) 2011-04-15 2018-07-17 Tac-Fast Georgia L.L.C. Methods and systems for engagement of decorative covering
US10349707B2 (en) 2016-07-05 2019-07-16 Alfatex Nv Fastener tape

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