Classifications

• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
  • A41D31/00—Materials specially adapted for outerwear
  • A41D31/02—Layered materials
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
  • A41B17/00—Selection of special materials for underwear
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
  • A41B9/00—Undergarments
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
  • A41D31/00—Materials specially adapted for outerwear
  • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
  • A41D31/18—Elastic
  • A41D31/185—Elastic using layered materials
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M17/00—Producing multi-layer textile fabrics
• • 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
  • B32B2255/00—Coating on the layer surface
  • B32B2255/02—Coating on the layer surface on fibrous or filamentary 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
  • B32B2255/00—Coating on the layer surface
  • B32B2255/26—Polymeric coating
• • 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
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/02—Synthetic macromolecular fibres
  • B32B2262/0207—Elastomeric fibres
• • 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
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/02—Synthetic macromolecular fibres
  • B32B2262/0253—Polyolefin fibres
• • 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
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/02—Synthetic macromolecular fibres
  • B32B2262/0261—Polyamide fibres
• • 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
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/02—Synthetic macromolecular fibres
  • B32B2262/0276—Polyester fibres
• • 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
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/02—Synthetic macromolecular fibres
  • B32B2262/0292—Polyurethane fibres
• • 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
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/06—Vegetal fibres
  • B32B2262/062—Cellulose fibres, e.g. cotton
• • 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
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/08—Animal fibres, e.g. hair, wool, silk
• • 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
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/14—Mixture of at least two fibres made of different materials
• • 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
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
  • B32B2307/51—Elastic
• • 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
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/70—Other properties
  • B32B2307/732—Dimensional properties
• • 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
  • B32B2437/00—Clothing
• • 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
  • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
  • B32B25/02—Layered products comprising a layer of natural or synthetic rubber with fibres or particles being present as additives in the 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
  • 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
  • B32B5/02—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 structural features of a fibrous or filamentary layer
  • B32B5/024—Woven fabric
• • 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
  • B32B5/02—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 structural features of a fibrous or filamentary layer
  • B32B5/06—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 structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
• • 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
  • B32B5/02—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 structural features of a fibrous or filamentary layer
  • B32B5/08—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 structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
• • 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
  • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
  • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
  • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
• • 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
  • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
  • B32B7/04—Interconnection of layers
  • B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
• • 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
  • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
  • B32B7/04—Interconnection of layers
  • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• • 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
  • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
  • B32B7/04—Interconnection of layers
  • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes

Definitions

• the present invention relates to fabrics and garments including at least one stretchable fabric composite laminate.
• the stretchable fabric composite laminate may be located at an edgeband, a strap or anywhere in the garment where additional stretch, elastic modulus, or support is desired.
• Interfacing is a woven or non-woven material that can be used in garment manufacture to provide stiffness to garment edge bands, such as waistbands, cuffs, and collars.
• garment edge bands such as waistbands, cuffs, and collars.
• these are generally not stretchable/elastic and therefore restrict the ability of the finished garment edging to stretch and recover.
• Some degree of stretch in waistbands and other garment openings is desirable to enhance comfort of the garment wearer or provide a greater fit range.
• support and stretch can be useful at any location within a garment for stretch and/or support.
• a garment including at least one layer of a garment fabric and a stretchable fabric composite laminate.
• the stretchable fabric composite laminate includes two outer layers of fabric with a bonded inner layer of elastomeric fibers, where the stretchable fabric composite laminate is attached to the garment fabric.
• the outer layers of the composite may be any suitable fabric such as a woven, knit or nonwoven.
• the inner layer of elastomeric fibers may be in any suitable orientation. One suitable orientation includes where the elastomeric fibers are aligned substantially parallel to each other.
• the composite may be attached by any suitable method, including but not limited to, adhesive, bonding, sewing, etc.
• the term “fabric” refers to a knitted, woven or nonwoven material.
• the knitted fabric may be flat knit, circular knit, warp knit, narrow elastic, and lace.
• the woven fabric may be of any construction, for example sateen, twill, plain weave, oxford weave, basket weave, and narrow elastic.
• the nonwoven material may be meltblown, spun bonded, wet-laid, carded fiber-based staple webs, and the like.
• modulus refers to a ratio of the stress on an item expressed in force per unit linear density or area.
• articles including a garment that has at least one opening that may be include an edgeband that includes a polyurethaneurea composition.
• Such garments may include tops, bottoms, hosiery, seamless garments, headwear, underwear and gloves.
• an article including a garment having at least one opening.
• the opening is also referred to as an edgeband.
• the edgeband may be included with a variety of different garments that include, but are not limited to, waistbands, cuffs and other arm openings and armbands, collars/neck openings, headbands, thigh highs, sock tops (the opening of a sock), leg warmers, wristbands, headbands, leg openings (legbands), and hems, among others.
• the stretchable composite laminate may be attached to a surface of the opening, such as the inner body contacting surface, or may be included with a multiple layer opening, such as a single foldover of fabric or a multiple layered fabric construction such as a waistband.
• the stretchable composite laminate may be an intermediate layer or may be included on a fabric surface, including a body-contacting surface.
• the band of material may be on an exposed or outer surface. If the band is visible, it may be printed, dyed or calendared to give it a desirable appearance.
• a stretchable composite laminate as describe herein may have any suitable width.
• An example of a suitable range includes, but is not limited to about 0.1 cm to about 30.0 cm.
• the stretchable composite laminate may form a strap for a garment, such as a brassiere or a swimsuit.
• a single layer of a fabric may be folded to form two or more layers of a multiple layer article with a stretchable composite laminate as an intermediate layer.
• a stretchable composite laminate may provide additional stretch recovery power, such as at a hem, or for a body shaping garment, to provide additional support.
• Any type of fabric may be used as the garment or in an edgeband. This includes woven, nonwoven, knit, and lace fabrics, among others.
• the stretchable composite laminate may be placed adjacent to one surface of the garment or between layers within the garment.
• the stretchable fabric composite laminate may be prepared separately and sewn to the garment or the stretchable fabric composite laminate may be incorporated into the garment opening during construction of the garment. Dyeing and finishing of the garment may be conducted before or after assembly of the garment with the stretchable composite laminate.
• the stretchable composite laminate may be added to different areas of the article. For example, it may either extend through the entire area of the edgeband (continuous application) or to a selected portion or portions (discontinuous application) to provide different benefits. For example, pieces of the stretchable composite laminate may be placed in selected locations throughout the area of the opening or edge band.
• One suitable method for accomplishing the attachment of the outer layers with inner elastomeric fibers of the stretchable fabric composite laminate it to apply an adhesive dispersion or solution to a fabric may be by any of a variety of different methods.
• Methods for applying the dispersions or solutions of polyurethaneurea include spraying, kissing, printing, brushing, dipping, padding, dispensing, metering, painting, and combinations thereof. This may be followed by application of heat and/or pressure.
• a variety of useful adhesives may be included in the stretchable fabric composite laminate.
• adhesives include any hot melt adhesive, a cyanoacrylate, an epoxy, polyvinyl acetate, a plastisol (including rubber), a thermoplastic (including polyurethanes, polyesters, and polyamides), silicone, a polyurethaneurea aqueous dispersion, a thermoset, a pressure sensitive adhesive and combinations thereof.
• the adhesive may be used to form the stretchable fabric composite laminate and/or to attach the laminate to a garment.
• the adhesive may include a continuous or discontinuous application. Examples of discontinuous application of adhesive include the group consisting of dots, vertical lines, horizontal lines, diagonal lines, a grid, and combinations thereof.
• polyurethaneurea aqueous dispersions may also be used as an adhesive to adhere more than one layer of any the garment or polyurethaneurea film as described in some embodiments.
• a variety of different fibers and yarns may be used with the fabrics and garments of some embodiments. These include cotton, wool, acrylic, polyamide (nylon), polyester, spandex, regenerated cellulose, rubber (natural or synthetic), bamboo, silk, soy or combinations thereof.
• Additives that may be optionally included in the stretchable fabric composite laminate include: anti-oxidants, UV stabilizers, colorants, pigments, crosslinking agents, phase change materials (i.e., Outlast®, commercially available from Outlast Technologies, Boulder, Colo.), antimicrobials, minerals (i.e., copper), microencapsulated well-being additives (i.e., aloe vera, vitamin E gel, aloe vera, sea kelp, nicotine, caffeine, scents or aromas), nanoparticles (i.e., silica or carbon), calcium carbonate, flame retardants, antitack additives, chlorine degradation resistant additives, vitamins, medicines, fragrances, electrically conductive additives, and/or dye-assist agents (i.e., Methacrol®, commercially available from E.
• phase change materials i.e., Outlast®, commercially available from Outlast Technologies, Boulder, Colo.
• antimicrobials i.e., minerals (i.e., copper)
• additives which may be added to the prepolymer or the aqueous dispersion comprise adhesion promoters, anti-static agents, anti-cratering agents, anti-crawling agents, optical brighteners, coalescing agents, electroconductive additives, luminescent additives, flow and leveling agents, freeze-thaw stabilizers, lubricants, organic and inorganic fillers, preservatives, texturizing agents, thermochromic additives, insect repellants, and wetting agents.
• Aqueous polyurethane dispersions may also be included as an adhesive. These are particularly suitable for adhesive shaped articles, which can be used for fabric bonding, lamination, and adhesion purposes when applied with heat and pressure for a relatively short period of time. Pressures, can for example, range from about atmospheric pressure to about 60 psi and times can range from less than about one second to about 30 minutes in accordance with the bonding method used.
• Lamination can be carried out to secure the composite to a fabric using any method wherein heat is applied to the laminate surface.
• Methods of heat application include, for example, ultrasonic, direct heat, indirect heat, and microwave.
• Such direct lamination may provide an advantage in view of other methods used in the art in that the shaped article may not only bond to the a substrate via a mechanical interaction but also via a chemical bond.
• the substrate has any reactive hydrogen functional groups, such groups may react with the isocyanate and hydroxyl groups on the dispersion or shaped article, thereby providing a chemical bond between the substrate and the dispersion or shaped article.
• Such chemical bonding of the dispersion or shaped article to the substrate can give a much stronger bond.
• Such bonding may occur in dry shaped articles that are cured onto a substrate or in wet dispersions that are dried and cured in one step.
• Materials without an active hydrogen include polypropylene fabrics and anything with a fluoropolymer or a silicone based surface.
• Materials with an active hydrogen include, for example, nylon, cotton, polyester, wool, silk, cellulosics, acetates, metals, and acrylics. Additionally, articles treated with acid, plasma, or another form of etching may have active hydrogens for adhesion.
• Dye molecules also may have active hydrogens for bonding.
• Methods and means for applying the adhesive of some embodiments include, but are not limited to: roll coating (including reverse roll coating); use of a metal tool or knife blade (for example, pouring a dispersion onto a substrate and then casting the dispersion into uniform thickness by spreading it across the substrate using a metal tool, such as a knife blade); spraying (for example, using a pump spray bottle); dipping; painting; printing; stamping; and impregnating the article.
• roll coating including reverse roll coating
• a metal tool or knife blade for example, pouring a dispersion onto a substrate and then casting the dispersion into uniform thickness by spreading it across the substrate using a metal tool, such as a knife blade
• spraying for example, using a pump spray bottle
• dipping; painting; printing; stamping; and impregnating the article for example, using a pump spray bottle
• the dispersions can be applied to any fabrics of knits, wovens or nonwovens made from synthetic, natural, or synthetic/natural blended materials for coating, bonding, lamination and adhesion purposes.
• the water in the dispersion can be eliminated with drying during the processing (for example, via air drying or use of an oven), leaving the precipitated and coalesced polyurethane layer on the fabrics to form an adhesive bond.
• the knife blade can be made of metal or any other suitable material.
• the knife blade can have a gap of a predetermined width and thickness.
• the gap may range in thickness, for example, from 0.2 mils to 50 mils, such as a thickness of 5 mils, 10 mils, 15 mils, 25 mils, 30 mils, or 45 mils.
• Suitable thicknesses include about 0.5 mil to about 12 mil, about 0.5 to about 10 mil, and about 1.5 mil to about 9 mil.
• the amount used may, for example, range from about 2.5 g/m 2 to about 6.40 kg/m 2 , such as from about 12.7 to about 635 g/m 2 , including from about 25.4 to about 152.4 g/m 2 .
• Examples of apparel or garments that include a stretchable composite laminate include but are not limited to: undergarments, brassieres, panties, lingerie, swimwear, shapers, camisoles, hosiery, sleepwear, wetsuits, scrubs, space suits, uniforms, hats, garters, sweatbands, belts, activewear, outerwear, rainwear, cold-weather jackets, pants, shirtings, dresses, blouses, mens and womens tops, sweaters, corsets, vests, knickers, socks, knee highs, thigh highs, dresses, blouses, aprons, tuxedos, bisht, abaya, hijab, jilbab, thoub, burka, cape, costumes, diving suit, kilt, kimono, jerseys, gowns, protective clothing, sari, sarong, skirts, spats, stola, suits, straitjacket, toga, tights, towel
• the stretchable fabric composite laminate of some aspects is composed of two outer layers of nonwoven fabric of substantially equal width and a uniform inner layer of substantially parallel, equally spaced elastomeric fibers of equal decitex which are capable of complete recovery from extensions as great as 300%.
• the elastomeric fibers can be substantially completely relaxed in the absence of externally applied forces. Knit or woven fabric may be used in place of the nonwoven.
• “Uniform inner” layer means that the fibers are of substantially equal decitex and spacing, are substantially parallel to each other, and are subjected to substantially the same tension during preparation of the composite fabric.
• the fabrics can have a basis weight ranging from about 10 to about 30 g/m2.
• fabrics including nonwoven fabrics, are suitable.
• Representative examples are nonwovens composed of thermally bonded, spunbonded and hydroentangled fibers, and the two outer layers can be the same or different.
• they are composed of synthetic polymeric fibers such as polyolefin, polyester and polyamide fibers.
• the layer of elastomeric fibers is composed of at least eight threadlines per inch (3.15 threadlines/cm) of width, each threadline being at least 400 decitex.
• the number of threadlines per inch is not greater than 16 (6.30 threadlines/cm) or it is 12.
• the combination of these two parameters may be chosen to provide a minimum retractive force of about 0.22 pounds per inch (38.9 g/cm), as measured in the finished product when it is stretched at 150% of its original length.
• the elastomeric fibers are substantially parallel to the edges of the nonwoven fabrics.
• One suitable elastomeric fiber is spandex fiber.
• the three layers may be bonded together by an adhesive composition which constitutes from about 10% to about 35% of the weight of the composite fabric.
• adhesive content in the composite above these levels can make the fabric bond to itself.
• the adhesive compositions can be hot melt adhesives, such as styrene-based block copolymers, including styrene/isoprene and styrene/butadiene block copolymers.
• the styrene-based portions may be at least about 30 wt % of the total adhesive.
• Each element (layer) in the composite is bonded to at least one other element of the composite.
• the adhesive only partially covers the inside surface of the outer fabric layer. The adhesive penetrates to the outside of each outer layer to an extent less than about 10% based on the surface area of each outer layer. “Inside surface” refers to a nonwoven layer surface that is within the composite fabric of the invention.
• the composite stretchable puckered fabric can be prepared by placing between two layers of nonwoven fabric uniformly tensioned elastomeric filaments which are spaced a substantially equal distance apart and are of substantially equal decitex no less than 400 decitex per filament. There may be at least 8 filaments (threadlines) per inch of width and the threadlines are substantially parallel to each other and to the edges of the nonwoven fabrics. The three layers are bonded with an adhesive followed by removing the tension after bonding. This process produces a puckered fabric having a substantially uniform flat surface appearance which results from small substantially uniform puckers.
• a layer of substantially parallel and equally spaced elastomeric fibers is stretched not less than 100% and placed on top of one of the layers of nonwoven fabric.
• An adhesive such as a hot melt adhesive, is applied onto the elastomeric fibers and bottom nonwoven layer.
• the other layer of nonwoven is then placed on top of the adhesive-treated combination and the combined structure is bonded by heat and pressure while the elastomeric fibers remain in the stretched condition.
• the adhesive can be applied to the elastomeric fibers prior to their placement between layers of nonwoven fabric. When the bonding is completed, the tension is substantially completely released and the composite fabric relaxes to form the desired puckered structure.
• the hot melt adhesive can be applied in several different ways.
• the melted adhesive can be deposited as a discontinuous web from a spray nozzle, a process known as melt blowing.
• the melted adhesive can be deposited as a solid stream from a nozzle which moves in a spiral pattern as the web passes, a process known as spiral spray.
• partially covers it is meant that the adhesive is present at one part of the inside surface of the nonwoven but absent at an adjacent part. This can also be accomplished by applying a “dot matrix” pattern, as well.
• the products of this invention provide a desirably smooth, tailored appearance and are useful primarily as insert elastic nonwovens, for example, as the elastic inserts in outerwear shorts.
• the flatness or smoothness of the puckered fabrics of this invention can be measured by measuring the change in thickness when the fabric is stretched from its relaxed state to its ultimate elongation.
• the smoother the appearance of the fabric the smaller the change in thickness on stretching.
• the percent decrease in thickness in one aspect is not greater than about 64%.
• Fabrics with acceptable smoothness have at least 16 puckers per linear inch (6.3 puckers/cm).
• the ratio of percent decrease in thickness to the number of puckers per inch defines the fabric of this invention well.
• This ratio referred to as the flatness factor, must be about 4.4 or less, including less than 3.6, for a stretchable fabric to meet the limitation of substantially uniform flat appearance of this invention.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Materials Engineering (AREA)
• Laminated Bodies (AREA)
• Manufacturing Of Multi-Layer Textile Fabrics (AREA)
• Nonwoven Fabrics (AREA)
• Woven Fabrics (AREA)
• Socks And Pantyhose (AREA)
• Gloves (AREA)
• Details Of Garments (AREA)
• Corsets Or Brassieres (AREA)
• Professional, Industrial, Or Sporting Protective Garments (AREA)

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• 2013
  • 2013-12-23 CN CN201810737248.4A patent/CN109222294A/zh active Pending
  • 2013-12-23 BR BR112015015762-9A patent/BR112015015762B1/pt active IP Right Grant
  • 2013-12-23 JP JP2015550714A patent/JP6466342B2/ja not_active Expired - Fee Related
  • 2013-12-23 US US14/758,376 patent/US20150351474A1/en not_active Abandoned
  • 2013-12-23 EP EP13867260.5A patent/EP2938217A4/en active Pending
  • 2013-12-23 CN CN201380074015.6A patent/CN105407752A/zh active Pending
  • 2013-12-23 WO PCT/US2013/077395 patent/WO2014105778A1/en active Application Filing
  • 2013-12-23 KR KR1020157020041A patent/KR102139273B1/ko active IP Right Grant

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