WO2004064557A2 - Waterproof footwear and methods for making the same - Google Patents

Waterproof footwear and methods for making the same Download PDF

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Publication number
WO2004064557A2
WO2004064557A2 PCT/US2004/000734 US2004000734W WO2004064557A2 WO 2004064557 A2 WO2004064557 A2 WO 2004064557A2 US 2004000734 W US2004000734 W US 2004000734W WO 2004064557 A2 WO2004064557 A2 WO 2004064557A2
Authority
WO
WIPO (PCT)
Prior art keywords
waterproof
footwear
bootie
insole
waterproof gasket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2004/000734
Other languages
English (en)
French (fr)
Other versions
WO2004064557A3 (en
Inventor
Robert J. Wiener
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gore Enterprise Holdings Inc
Original Assignee
Gore Enterprise Holdings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gore Enterprise Holdings Inc filed Critical Gore Enterprise Holdings Inc
Priority to EP04701749A priority Critical patent/EP1587386B1/en
Priority to CA2513278A priority patent/CA2513278C/en
Priority to JP2006500916A priority patent/JP4833828B2/ja
Priority to US10/548,925 priority patent/US20070054316A1/en
Priority to DK04701749.6T priority patent/DK1587386T3/da
Priority to HU0500770A priority patent/HU228871B1/hu
Publication of WO2004064557A2 publication Critical patent/WO2004064557A2/en
Publication of WO2004064557A3 publication Critical patent/WO2004064557A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B19/00—Shoe-shaped inserts; Inserts covering the instep
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/07—Linings therefor
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/12—Special watertight footwear
    • A43B7/125—Special watertight footwear provided with a vapour permeable member, e.g. a membrane

Definitions

  • the present invention relates to waterproof footwear and methods for making the same.
  • the invention relates to waterproof footwear and methods for making the same.
  • the footwear comprises: a laminate liner material including at least a waterproof, water vapor permeable functional layer with an open top portion secured to a collar portion of an upper material, and a bottom perimeter edge portion secured to a first insole material; a waterproof gasket material having a top surface and a bottom surface with the top surface adhered to and covering the first insole material and at least a portion of the bottom perimeter edge portion of the laminate liner material; a second insole material secured to a perimeter edge portion of the upper material, forming a closed upper; and wherein the bottom surface of the waterproof gasket material contacts at least a portion of the second insole material.
  • the method comprises the steps of: providing a laminate liner material including at least a waterproof, water vapor permeable functional layer with an open top portion and an open bottom portion; securing a first insole material to the open bottom portion of the laminate liner material to form a bootie; locating a shoe last within the bootie to form a bottom portion of the bootie which includes the first insole material and a perimeter edge portion of the laminate liner material; providing a wate ⁇ roof gasket material having a top surface and a bottom surface; adhering the top surface of the waterproof gasket material to the bottom portion of the bootie, the waterproof gasket material covering the first insole material and at least a portion of the perimeter edge portion of the laminate liner material to form a waterproof bootie; securing the open top portion of the waterproof bootie to a collar portion of a shoe upper having a perimeter edge portion; securing the perimeter edge portion of the shoe upper to a second insole material, to form a closed upper; and locating the boot
  • Figure 1 is perspective view of a laminate liner material, having an open top portion and an open bottom portion.
  • Figure 2 is a perspective view of a first insole material.
  • Figure 3 is a bottom view of a bootie.
  • Figure 4 is a cross-sectional view of a bootie and a waterproof gasket being applied to the bottom of the bootie.
  • Figure 5 is a perspective view of a shoe upper and a second insole material before being attached to the shoe upper.
  • Figure 6 is a cross-sectional view of a waterproof footwear article of the present invention.
  • the invention relates to waterproof footwear and methods for making the same.
  • the method includes two separate lasting steps, which results in an exceptionally good fit between the laminate liner material and the shoe upper, thus resulting in, among other things, aesthetically pleasing, better fitting footwear.
  • FIG. 1 there is shown a laminate liner material 1 having an open top portion 2 and an open bottom portion 3. Also shown are optional seams 4 where two panels of laminate liner material may be joined together to form the laminate liner material 1 into the general corresponding shape of a shoe upper. Pieces of laminate liner material can be joined together by sewing, welding, gluing, etc. When pieces of laminate liner are sewn together, the seams can be made waterproof by sealing the seams 4 with known sealing materials, such as GORE-SEAM tape (available from W.L. Gore and Associates, Inc.). Other sealants may be applied to the seams to render them waterproof if they are not inherently waterproof due to welding or gluing.
  • GORE-SEAM tape available from W.L. Gore and Associates, Inc.
  • the laminate liner material 1 includes at least one layer of material which is waterproof and water vapor permeable (i.e., a functional material), such as a breathable polymeric membrane.
  • a functional material such as a breathable polymeric membrane.
  • water vapor permeable and breathable are used interchangeably and mean that the functional layer has a water vapor coefficient Ret of less than 200 m Pa W
  • the water vapor permeability is tested by the Hohenstein skin model. This method is described in DIN EN 31092 (02/94) or ISO 11092 (19/33).
  • Breathable polymeric membranes may be breathable by virtue of pores in the membrane or through a solution diffusion mechanism.
  • Breathable polymeric membranes may be selected from polyurethane, polyester, polyether, polyamide, polyacrylate, copolyether ester and copolyether amides.
  • the waterproof, water vapor permeable membrane is a membrane of microporous polytetrafluoroethylene.
  • the microporous polytetrafluoroethylene membrane is a membrane of expanded polytetrafluoroethylene as taught in U.S. Patent Nos. 3,953,566 and 4,187,390, to Gore.
  • Such membranes of expanded polytetrafluoroethylene are commercially available from W.L. Gore and Associates, Inc., Elkton, MD, under the tradename GORE-TEX ® fabric. The subject matter of both of these U.S. Patents is incorporated herein by reference.
  • the laminate liner material will contain at least the above described functional material and at least one other material laminated thereto.
  • the liner can include the functional material and a textile material laminated or otherwise joined to at least one side, and often times joined to both sides thereof. Lamination is generally carried out with the use of a discontinuous pattern of suitable adhesive. Thus, water vapor permeability is not significantly effected.
  • At least one other material can be a textile fabric. Textile fabrics can be woven, knit, mesh, nonwoven, felt constructions, etc. Textiles can be produced from natural fibers such as cotton, or from synthetic fibers such as polyesters, polyamides, polypropylenes, polyolefins, or blends thereof.
  • a textile fabric is laminated to the side of the functional material which will be in contact with the upper material.
  • a textile fabric is laminated to the side of the functional material which will face the inside of the footwear.
  • textile fabric is laminated to both sides of the functional material, thus providing a three layer liner material.
  • Figure 2 shows a first insole material 5 in the shape, generally, of the bottom of a foot.
  • the first insole material 5 is actually somewhat smaller than the desired size of the bottom of the bootie which will be formed, as described later.
  • the first insole material 5 can be any suitable material which is capable of being secured to the bottom portion of the laminate liner material to form a bootie.
  • the first insole material 5 can be a woven or nonwoven material.
  • the first insole material 5 can be polyester, nylon, polyacrylic, polyolefin, polyurethane, polyvinyl, cotton, acetate, rayon, olefin, acrylic, wool, spandex, metallic, etc.
  • the first insole material 5 can be secured to the bottom portion of the laminate liner material 1 by any suitable means.
  • the insole material 5 can be secured to the bottom portion of the laminate liner material 1 by stitching, stapling, ultra sonic welding, etc., with stitching being preferred.
  • a bootie is obtained which is formed to be capable of accepting a wearer's foot.
  • a first lasting process is carried out. Specifically, a shoe last is inserted into the bootie at the open top portion 2 to form the bootie to the exact shape of the shoe last.
  • the bottom surface portion of the bootie will include the first insole material 5 and a folded over, perimeter edge portion of the laminate liner material 1 , as shown in Figure 3 .
  • the bootie is now ready for attachment of the waterproof gasket material. Attaching the waterproof gasket to the laminate liner material 1 results in the bootie being a fixed replica of the last shape.
  • a waterproof gasket material 7 having a top surface and a bottom surface is adhered to the bottom surface portion of the bootie to form a waterproof bootie.
  • the waterproof gasket material 7 can be any suitable waterproof material.
  • polymeric materials, waterproof fabrics (either woven or non-woven), and fabrics coated with polymer are suitable waterproof gasket materials 7.
  • the top surface of the waterproof gasket material 7 is adhered to the bottom surface portion of the bootie such that the first insole material 5 and at least a portion of the perimeter edge portion of the laminate liner material 1 are covered by the top surface of the waterproof gasket material 7, thus forming a waterproof bootie.
  • the waterproof gasket material 7 can be adhered to the bottom surface portion of the bootie using any suitable adhesive material.
  • suitable adhesive materials include, for example, polyurethane, natural latex rubber, nitrile rubber, silicone rubber, butyl rubber, fluorinated rubber, copolyether polyester, polyester, ethylene vinyl acetate or polyamide.
  • the adhesive is a polyurethane adhesive.
  • the polyurethane adhesive can be a reactive polyurethane which is activated by application of heat thereto.
  • the adhesive can be previously applied to the gasket material 7, or it can be applied by, for example, brushing, etc., at the point of footwear assembly.
  • the adhesive can be applied to the bottom surface portion of the bootie, preferably covering substantially the entire bottom surface portion of the bootie.
  • adhesive may be applied to both the waterproof gasket material 7 and to the bottom surface portion of the bootie.
  • the adhesive can be applied to the surface of the top surface of the waterproof gasket (or to the bottom surface portion of the bootie, or both) and allowed to dry. Thereafter the top surface of the waterproof gasket material 7 and the bottom surface portion of the bootie can be pressed together and heat applied to soften and cause the polyurethane to react and form an adhesive bond between the two surfaces, thus forming a waterproof bootie.
  • reactive polyurethane could be applied as described above, but rather than allowing the polyurethane to dry, the top surface of the waterproof gasket and the bottom surface portion of the bootie could be immediately pressed together to form the waterproof bootie.
  • the waterproof gasket material 7 is a three layer gasket material comprising a woven or nonwoven material having on one surface thereof a stable, non- flowing polymer film (such as polyurethane) with a flowable polymer adhesive applied to the other side of the stable, non-flowing polymer film.
  • a stable, non- flowing polymer film such as polyurethane
  • the flowable polymer adhesive can bond the waterproof gasket material to the bottom surface of the bootie, while the stable, non-flowing polymer film remains stable under the conditions, thus maintaining waterproofness of the gasket.
  • Such a waterproof gasket could be premanufactured and installed at the point of footwear manufacture, thus eliminating the step of the factory worker applying adhesive to the gasket at the point of footwear assembly.
  • the open top portion 2 of the bootie can be secured to the collar portion 8 of a shoe upper 9, shown in Figure 5.
  • Any suitable material can be used to form shoe upper 9, such as leather or fabric.
  • Any suitable means can be used for securing the open top portion 2 of the bootie to the collar portion 8 of the shoe upper 9.
  • the open top portion 2 of the bootie is secured to the collar portion 8 of the shoe upper 9 by stitching.
  • the open top portion 2 of the bootie can be secured to the collar portion 8 of the shoe upper 9 before the waterproof gasket material 7 is adhered to the bottom surface portion of the bootie. Then the waterproof gasket can be applied to the bottom of the bootie as discussed above, prior to attachment of the shoe upper 9 to a second insole material.
  • the waterproof bootie is pulled up into the collar area of the shoe upper 9 so it does not get damaged by the following operation.
  • the perimeter edge portion of the shoe upper 9 is secured to a second insole material to form a closed upper.
  • Securing of the shoe upper 9 to the second insole material can be accomplished by, for example, stapling, stitching, etc.
  • the closed upper is formed by stitching the perimeter edge portion of the shoe upper to the second insole material. Any suitable material can be used for the second insole material, such as those listed above for the first insole material.
  • the wate ⁇ roof bootie is then pushed back into the closed upper (the use of compressed air is effective for this step). Assembly of the footwear is then completed by manual slip or force lasting. This results in an exceptionally tight fit between the bootie and the closed upper, with the bottom surface of the waterproof gasket material contacting at least a portion of the second insole material.
  • suitable adhesive such as those described above, can be applied to the bottom surface of the waterproof gasket, to the top surface of the second insole material, to the perimeter edge portion of the shoe upper, or to two or more of these surfaces to result in improved adhesion between the waterproof bootie and the closed upper.
  • pressure can be applied to adhere the surfaces together.
  • the bottom surface of the waterproof gasket material is adhered to the top surface of the second insole material.
  • the adhesive used can be a heat activated adhesive. More particularly, a reactive polyurethane adhesive can be used. If the adhesive is a heat activated adhesive, then, of course, heat is applied in addition to applying pressure to the waterproof gasket material 7 and the insole board 10.
  • FIG. 6 is a cross-sectional view of the footwear according to the invention wherein conventional outer sole is indicated by 11.
  • Outer sole 1 can be any suitable material such as, for example, polyurethane, natural rubber, synthetic rubbers, leather, artificial leather, polyvinyl chloride, ethylene vinyl acetate, etc., and combinations thereof.
  • waterproof footwear is determined as follows. The footwear is placed on top of a piece of blotter paper. The inside of the footwear is filled with room temperature water to a height of about 30 mm (measured from the insole at the heel area of the footwear). The water is allowed to stand in the footwear for at least two hours. At the end of the two hour period the blotter paper and footwear upper are examined to determine if water has reached the blotter paper or the outside of the upper. If no water has reached the blotter paper or the outside of the upper, then the footwear is waterproof.
  • waterproof, water vapor permeable functional layer” and the “waterproof gasket material” are “waterproof if, when combined to form the footwear according to the invention, they result in the footwear being “waterproof as defined above.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Laminated Bodies (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
PCT/US2004/000734 2003-01-16 2004-01-13 Waterproof footwear and methods for making the same Ceased WO2004064557A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP04701749A EP1587386B1 (en) 2003-01-16 2004-01-13 Waterproof footwear
CA2513278A CA2513278C (en) 2003-01-16 2004-01-13 Waterproof footwear and methods for making the same
JP2006500916A JP4833828B2 (ja) 2003-01-16 2004-01-13 防水性履物及びその作成方法
US10/548,925 US20070054316A1 (en) 2003-01-16 2004-01-13 Radical activated cleavage of biologics and microfluidic devices using the same
DK04701749.6T DK1587386T3 (da) 2003-01-16 2004-01-13 Vandtæt fodtøj
HU0500770A HU228871B1 (hu) 2003-01-16 2004-01-13 Vízálló lábbeli

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/346,208 2003-01-16
US10/346,208 US6935053B2 (en) 2003-01-16 2003-01-16 Waterproof footwear and methods for making the same

Publications (2)

Publication Number Publication Date
WO2004064557A2 true WO2004064557A2 (en) 2004-08-05
WO2004064557A3 WO2004064557A3 (en) 2004-12-23

Family

ID=32712084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/000734 Ceased WO2004064557A2 (en) 2003-01-16 2004-01-13 Waterproof footwear and methods for making the same

Country Status (10)

Country Link
US (2) US6935053B2 (enExample)
EP (1) EP1587386B1 (enExample)
JP (1) JP4833828B2 (enExample)
CN (1) CN100521999C (enExample)
CA (2) CA2513278C (enExample)
DK (1) DK1587386T3 (enExample)
HU (1) HU228871B1 (enExample)
PL (1) PL214239B1 (enExample)
TW (1) TWI307270B (enExample)
WO (1) WO2004064557A2 (enExample)

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Also Published As

Publication number Publication date
EP1587386A4 (en) 2008-03-05
US6935053B2 (en) 2005-08-30
TW200417331A (en) 2004-09-16
DK1587386T3 (da) 2012-09-03
HU228871B1 (hu) 2013-06-28
JP4833828B2 (ja) 2011-12-07
US20070054316A1 (en) 2007-03-08
HUP0500770A2 (en) 2006-04-28
CA2684449A1 (en) 2004-08-05
CA2513278A1 (en) 2004-08-05
TWI307270B (en) 2009-03-11
CN1738556A (zh) 2006-02-22
CN100521999C (zh) 2009-08-05
WO2004064557A3 (en) 2004-12-23
EP1587386B1 (en) 2012-05-23
CA2684449C (en) 2011-07-19
PL214239B1 (pl) 2013-07-31
JP2006516211A (ja) 2006-06-29
CA2513278C (en) 2010-03-23
EP1587386A2 (en) 2005-10-26
PL378202A1 (pl) 2006-03-20
US20040139628A1 (en) 2004-07-22

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