EP3234244B1 - Faserballwattefüllung und artikel damit - Google Patents

Faserballwattefüllung und artikel damit Download PDF

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Publication number
EP3234244B1
EP3234244B1 EP15871047.5A EP15871047A EP3234244B1 EP 3234244 B1 EP3234244 B1 EP 3234244B1 EP 15871047 A EP15871047 A EP 15871047A EP 3234244 B1 EP3234244 B1 EP 3234244B1
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EP
European Patent Office
Prior art keywords
fibers
fiberballs
batting
nonwoven web
binder fibers
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.)
Active
Application number
EP15871047.5A
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English (en)
French (fr)
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EP3234244A4 (de
EP3234244A1 (de
Inventor
Vanessa Mason
Agostino Molina
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Primaloft Inc
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Primaloft Inc
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Publication date
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Priority to PL15871047T priority Critical patent/PL3234244T3/pl
Publication of EP3234244A1 publication Critical patent/EP3234244A1/de
Publication of EP3234244A4 publication Critical patent/EP3234244A4/de
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/02—Cotton wool; Wadding
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres

Definitions

  • the present invention generally relates to fiberball batting comprising synthetic fibers and binder fibers, the batting being useful as, for example, insulation.
  • the invention also relates to articles comprising the batting, and to methods of making the batting.
  • Fiberballs have been known for some time. While fiberballs have often been seen as undesirable manufacturing defects in, e.g., the carding of various continuous non-woven materials, in other applications, such as for blowable applications, fiberballs have proven useful.
  • U.S. Patent No. 4,618,531 describes one such blowable fiberball invention. Specifically, U.S. 4,618,531 discloses polyester fiberfill having spiral crimp that is randomly arranged and entangled in the form of blowable fiberballs. The fiberballs are said to be easily transported, e.g., by blowing.
  • U.S. Patent No. 4,794,038 discloses fiberballs that are formed of entangled spirally-crimped fiberfill and binder fibers, which are also preferably spirally-crimped.
  • the fiberballs are said to be easily transported, e.g., by blowing, and can subsequently be compressed and bonded together.
  • the reference explains that binder fiber blends are used on a large scale in furnishings, mattresses, and similar end-uses where strong support is desired.
  • U.S. Patent No. 4,940,502 discloses bonded structures, which are provided in the form of molded fiberball blocks, which are made through a process that involves a compressing stage.
  • the resultant molded fiberball blocks are relatively dense (with densities generally ranging from about 20 Kg/m 3 to 80 Kg/m 3 ), have improved resilience, durability, and conformability, and may be used in, e.g., mattresses
  • European Patent Application 0 268 099 A1 discloses polyester fiberfill in the form of fiberballs with binder fibers. The resulting fiberfill is relatively dense.
  • the invention provides batting that comprises a nonwoven web comprising a fiber mixture having:
  • the invention provides an article comprising the inventive batting.
  • articles include, for example, outerwear (e.g. outerwear garments such as jackets, etc.), clothing, sleeping bags, bedding (e.g., comforters), etc.
  • the invention provides a method of making the inventive batting, said method comprising:
  • the invention provides batting that comprises a nonwoven web comprising a fiber mixture having:
  • the plurality of fiberballs and the plurality of portions of the nonwoven web that are adjacent to one or more fiberballs but that do not themselves comprise one or more fiberballs or any portion thereof, also necessarily comprise the fiber mixture of the nonwoven web.
  • the inventive batting has typically been heat treated so as melt all or a portion of the binder fibers, thereby forming a bonded web-type batting. Accordingly, persons having ordinary skill in the art will understand that, in such embodiments, although "binder fibers" are recited in the fiber mixture of the nonwoven web, said fibers will be wholly or partially melted fibers, as opposed to binder fibers in their original, pre-heat treatment form. Nevertheless, as used herein, denier and length descriptions of the binder fibers describe characteristics of the binder fibers prior to thermal bonding treatment.
  • FIG. 1 is a top-view photograph of one embodiment of the inventive batting 100.
  • the batting includes a plurality of fiberballs 12, and a plurality of portions of the nonwoven web that are adjacent to one or more fiberballs but that do not themselves comprise one or more fiberballs or any portion thereof, which also necessarily comprise the fiber mixture of the nonwoven web 14 (for the sake of simplicity, these may be referred to as "spaces").
  • the invention is distinguishable from prior art bonded materials formed from blowable fiberballs (for example, as disclosed in U.S. Patent No.
  • FIG. 2 is a profile-view photograph of an embodiment of the inventive batting 200, which also shows fiberballs 12 and spaces 14.
  • An advantage of the present invention over the state of the art includes the ability of the inventive batting to form rolled goods. While prior art blowable fiberballs have been bonded, bonding typically takes place only after the fiberballs have been introduced into their final destination (e.g., a cushion).
  • the inventive batting is made so as to form a non-woven web (generally, in the form of a soft, pliable sheet), which can be subsequently subjected to heat treatment so as to melt the binder fibers and form the inventive batting ex situ (outside of the finished product).
  • the inventive batting may then optionally be rolled and shipping to be used as a rolled good. For example, rolls of the batting may be later cut to a desired dimension, depending on intended application, then used as filling and/or insulation in an article.
  • the fiber mixture of the batting comprises 40 to 95 wt % of the synthetic fibers, including any and all ranges and subranges therein.
  • the batting comprises 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, or 95 wt% of the synthetic fibers, including any and all ranges and subranges therein (e.g., 75 to 90 wt %).
  • the synthetic fibers are selected from the group consisting of polyamide, polyester, acrylic, acetate, polyolefin, nylon, rayon, lyocell, aramid, spandex, viscose, and modal fibers, and combinations thereof.
  • the synthetic fibers comprise polyester fibers.
  • such polyester fibers comprise one or more of poly(ethylene terephthalate), poly(hexahydro-p-xylylene terephthalate), poly(butylene terephthalate), poly-1,4-cyclohexylene dimethylene terephthalate (PCDT) and terephthalate copolyesters in which at least 85 mole percent of the ester units are ethylene terephthalate or hexahydro-p-xylylene terephthalate units.
  • the synthetic fibers are polyethylene terephthalate fibers.
  • Denier is a unit of measure defined as the weight in grams of 9000 meters of a fiber or yarn. It is a common way to specify the weight (or size) of the fiber or yarn.
  • polyester fibers that are 1.0 denier typically have a diameter of approximately 10 micrometers.
  • Micro-denier fibers are those having a denier of 1.0 or less, while macro-denier fibers have a denier greater than 1.0.
  • the synthetic fibers have a denier of 0.5 to 6.5, including any and all ranges and subranges therein.
  • the denier is 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4 or 6.5, including any and all ranges and subranges therein (e.g., 1.0 to 4.0 denier, 1.0 to 2.0 denier, etc.
  • the synthetic fibers have a length of 18 mm to 51 mm, including any and all ranges and subranges therein.
  • the length is 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, or 51 mm, including all ranges/subranges therein (e.g., 20 to 30 mm).
  • the synthetic fibers are siliconized.
  • the term "siliconized" means that the fiber is coated with a silicon-comprising composition (e.g., a silicone). Siliconization techniques are well known in the art, and are described, for example, in U.S. Patent No. 3,454,422 .
  • the silicon-comprising composition may be applied using any method known in the art, e.g., spraying, mixing, dipping, padding, etc.
  • the silicon-comprising (e.g., silicone) composition which may include an organosiloxane or polysiloxane, bonds to an exterior portion of the fiber.
  • the silicone coating is a polysiloxane such as a methylhydrogenpolysiloxane, modified methylhydrogenpolysiloxane, polydimethylsiloxane, or amino modified dimethylpolysiloxane.
  • the silicon-comprising composition may be applied directly to the fiber, or may be diluted with a solvent as a solution or emulsion, e.g. an aqueous emulsion of a polysiloxane, prior to application. Following treatment, the coating may be dried and/or cured.
  • a catalyst may be used to accelerate the curing of the silicon-comprising composition (e.g., polysiloxane containing Si-H bonds) and, for convenience, may be added to a silicon-comprising composition emulsion, with the resultant combination being used to treat the synthetic fiber.
  • Suitable catalysts include iron, cobalt, manganese, lead, zinc, and tin salts of carboxylic acids such as acetates, octanoates, naphthenates and oleates.
  • the fiber may be dried to remove residual solvent and then optionally heated to between 65° and 200° C to cure.
  • the synthetic fibers are slickened with another slickening agent, e.g., segmented copolymers of polyalkyleneoxide and other polymers, such as polyester, or polyethylene or polyalkylene polymers as is mentioned in U.S. Patent No. 6,492,020 B1 .
  • another slickening agent e.g., segmented copolymers of polyalkyleneoxide and other polymers, such as polyester, or polyethylene or polyalkylene polymers as is mentioned in U.S. Patent No. 6,492,020 B1 .
  • Binder fibers are well known in the art, and an array of binder fibers are commercially available.
  • the binder fibers used in the present invention may be conventional binder fibers (e.g., low-melt polyester binder fibers), or other binder fibers, provided that whatever binder fiber is used, the binder fiber has a bonding temperature lower than the softening temperature of the synthetic fibers.
  • Binder fibers are discussed, for example, in U.S. Patent No. 4,794,038 , and general protocols for certain embodiments of binder fibers are set forth in U.S. Patent No. 4,281,042 and in U.S. Patent No. 4,304,817 .
  • the binder fibers are monocomponent fibers.
  • the binder fibers are multicomponent fibers (e.g., bicomponent fibers, for example, sheath-core fibers, where the core comprises a higher melting component than the sheath).
  • the binder fibers comprise blends of one or more different types of binder fibers.
  • the fiber mixture of the batting comprises 5 to 40 wt % of the binder fibers, including any and all ranges and subranges therein.
  • the batting comprises 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, or 40 wt% of the binder fibers, including any and all ranges and subranges therein (e.g., 10 to 25 wt %).
  • the binder fibers have a denier of 1.0 to 5.0, including any and all ranges and subranges therein.
  • the denier is 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, or 5.0 denier, including any ranges/subranges therein (e.g., 1.5 to 3.5 denier, 1.9 to 2.5 denier, etc.).
  • the binder fibers have a length of 18 mm to 71 mm, including any and all ranges and subranges therein.
  • the length is 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62 ,63, 64, 65, 66, 67, 68, 69, 70, or 71 mm, including all ranges/subranges therein (e.g., 18 to 51 mm, 40 to 60 mm, etc.).
  • the binder fibers have a bonding temperature lower than the softening temperature of the synthetic fibers.
  • the binder fibers have a bonding temperature of less than or equal to 200 °C.
  • the binder fibers have a bonding temperature of 50 to 200, including any and all ranges and subranges therein.
  • the binder fibers have a bonding temperature of 80 °C to 150 °C.
  • the binder fibers have a bonding temperature of 100 °C to 125 °C.
  • the binder fibers have a melting temperature that is 15 to 170 °C less than the melting temperature of the synthetic fibers.
  • the binder fibers have a melting temperature that is 15-170 °C less than the melting temperature of the synthetic fibers (e.g., 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96,
  • the binder fibers comprise low-melt polyester fibers.
  • the binder fibers are bicomponent fibers comprising a sheath and a core, wherein the sheath comprises a material having a lower melting point than the core.
  • the binder fibers are polyethylene/polypropylene bicomponent fibers.
  • the synthetic fibers and/or the binder fibers are crimped fibers.
  • Various crimps, including spiral and standard crimp, are known in the art.
  • the fibers may typically have any crimp.
  • the fibers are not spirally or helically crimped fibers.
  • synthetic and/or binder fibers are not crimped.
  • the fiber mixture additionally comprises one or more types of natural fibers in addition to the synthetic fibers and binder fibers.
  • the fiber mixture additionally comprises one or more members selected from wool, cotton, tencel, flax, animal hair, silk, and down.
  • the nonwoven web comprises 50 to 90 wt% of fiberballs, including any and all ranges and subranges therein; and 10 to 50 wt% of the spaces, including any and all ranges and subranges therein.
  • the batting/nonwoven web comprises 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, or 90 wt % fiberballs, including any and all ranges/subranges therein (e.g., 70 to 90 wt %).
  • the batting/nonwoven web comprises 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, or 50 wt% spaces, including ranges/subranges therein (e.g., 10 to 30 wt%).
  • the fiberballs have an average diameter of 3.0 to 8.0 mm (e.g., 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, or 8 mm), including any and all ranges and subranges therein (e.g., 4 to 6 mm, 5 to 6 mm, etc.).
  • the batting has a thickness of less than or equal to 40 mm, for example, 5 to 40 mm (e.g., 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, or 40 mm), including all ranges and subranges therein.
  • 5 to 40 mm e.g., 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, or 40 mm
  • the batting has a density of 2 to 12 kg/m 3 (e.g., 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 8.0, 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9, 9.0, 9.1, 9.2, 9.3, 9.4, 9.5, 9.6, 9.7, 9.8, 9.9, 10.0, 10.1, 10.2, 10.3, 10.
  • the density of the batting is thus relatively low compared to prior art that utilizes compacted fiberballs.
  • embodiments of the inventive batting unlike prior art, provide a lofty, soft, and pliable insulation.
  • inventive batting having a density of 2 to 12 kg/m 3 , may not have sufficient structural integrity to remain intact following handling and use (and thus would not be fit as insulation), would not have sufficient insulating properties, and/or would not be readily producible, Applicant has found that embodiments of the invention surprisingly achieve all of these objectives.
  • the inventive batting comprises a first surface and second surface, the second surface being parallel to first surface.
  • the first surface and/or the second surface of the batting comprises a cross-linked resin.
  • a cross-linker solution comprising a cross-linker compound has been applied to the first and/or second surface.
  • the resin is a cross-linked (e.g., via heat treatment) version of the cross-linker solution.
  • the cross-linked resin comprises a cross-linker that is a cross-linked acrylate (co)polymer.
  • the cross-linker solution and/or the cross-linker compound display softness and hydrophobicity.
  • the cross-linker compound has a glass transition temperature (Tg) of less than 0 °C.
  • At least one of the first surface and second surface comprises a scrim layer.
  • Scrim is well known in the art. Use of scrim can help to mitigate fiber migration in the inventive batting (e.g., during handling of the product).
  • the inventive batting comprises the nonwoven web, which comprises the fiber mixture.
  • the fiber content of the nonwoven web consists of the fiber mixture.
  • the batting comprises a single nonwoven web. In other embodiments, the batting comprises a plurality of nonwoven web layers, wherein one or more of said layers is a nonwoven web according to the invention (i.e., containing the fiber mixture and specified weight percentages of fiberballs and spaces). In some embodiments, the batting comprises a plurality of nonwoven webs, all of which are nonwoven webs according to the invention.
  • the invention provides an article comprising the inventive batting.
  • articles include, for example, outerwear (e.g. outerwear garments such as jackets, etc.), clothing, sleeping bags, bedding (e.g., comforters), etc.
  • the invention provides a method of making the inventive batting, said method comprising:
  • any known fiberball formation process that is conducive to forming fiberballs from the fiber mixture (knowledge well within the purview of a skilled artisan in the field) may be used.
  • methods of forming fiberballs are described, for example in U.S. Patent Nos. 4,794,038 and 6,613,431 .
  • the fiberballs are formed by air-tumbling small tufts of the synthetic and binder fibers repeatedly against a wall of a vessel so as to densify the bodies and make them rounder, thereby forming fiberballs.
  • a fiber ball machine is used to form fiberballs.
  • the fiberballs are formed using a ball card (i.e., a carding machine modified for production of fiberballs).
  • the synthetic fibers, and/or the binder fibers are opened prior to fiberball formation.
  • opening entails separating the fibers to some extent (e.g., using an opener, such as a bale opening system) prior to further processing.
  • the forming a nonwoven web from the fiber mixture may utilize any acceptable web-forming technology (e.g., an airlaid system, or a carding machine).
  • the fiber mixture namely, in the form of fiberballs, which have been formed from the mixture
  • the spaces may be formed, for example, from "fallout" fiber that has separated from a mixture of fiberballs that are processed through the airlaid system.
  • forming the nonwoven web comprises depositing the fiber mixture (e.g., the formed fiberballs and any loose fibers remaining following fiber ball formation) onto a forming wire. In some embodiments, this may be done with vacuum assistance (e.g., the vaccum system being located below the forming wire). In particular embodiments, loose fiberballs are fed into an air lay system. The air lay system meters out the fiberballs via an airflow over a given width and specified thickness.
  • the nonwoven web After the nonwoven web is formed, it is heated to or in excess of the bonding temperature of the binder fibers, thereby forming the inventive batting.
  • the nonwoven fiberball web After the nonwoven fiberball web is created by the air lay system, it can be carried by an apron into a thermal bonding oven where the binder fibers are activated by heat, thus resulting in a bonded batting.
  • the intermediate nonwoven web Prior to thermal bonding (heating the non-woven web to or in excess of the bonding temperature of the binder fibers), the intermediate nonwoven web may optionally be subjected to machining (e.g., rollers) to provide a degree of integrity to the web, if desired (provided, of course, that such machining does not result in a batting that would have a density in excess of 12 kg/m 3 ).
  • machining e.g., rollers
  • the nonwoven web may serve as the batting, or it may be layered with one or more additional layers (according to the invention or otherwise) to form a layered batting.
  • a sample batting is made according to the above method.
  • the fiber mix for the sample is 90% 1.4 denier polyester fibers having a staple length of 28 mm, and 10% low-melt bi-component polyester/polyester binder fibers.
  • the fiber mix is processed through a carding machine to obtain a non-woven web batting pre-cursor, which is heated at 110 °C to form an embodiment of the inventive batting.
  • the final batting structure consists of 80% fiberballs having a diameter of 6 mm, and 20% plurality of portions of the nonwoven web that are adjacent to one or more fiberballs but that do not themselves comprise one or more fiberballs or any portion thereof.
  • the batting has a weight of 175 gsm (grams per square meter), a thickness of 17.5 mm, and a density of 10 kg/m 3 .
  • a method or article that "comprises”, “has”, “includes” or “contains” one or more steps or elements possesses those one or more steps or elements, but is not limited to possessing only those one or more steps or elements.
  • a step of a method or an element of an article that "comprises”, “has”, “includes” or “contains” one or more features possesses those one or more features, but is not limited to possessing only those one or more features.
  • each range is intended to be a shorthand format for presenting information, where the range is understood to encompass each discrete point within the range as if the same were fully set forth herein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)
  • Bedding Items (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Multicomponent Fibers (AREA)

Claims (15)

  1. Wattefüllung, umfassend ein Faservlies, welches eine Fasermischung umfasst, enthaltend:
    - 40 bis 95 Gew.-% synthetische Fasern mit einem Denier von 0,5 bis 6,5 und einer Länge von 18 mm bis 51 mm; und
    - 5 bis 40 Gew.-% Binderfasern mit einem Denier von 1,0 bis 5,0 und einer Länge von 18 mm bis 71 mm, wobei die Binderfasern eine Klebetemperatur von niedriger als die Erweichungstemperatur der synthetischen Fasern aufweisen,
    wobei, strukturell, das Faservlies umfasst:
    - 50 bis 95 Gew.-% einer Vielzahl von Faserbällen mit einem durchschnittlichen Durchmesser von 3,0 bis 8,0 mm; und
    - 5 bis 50 Gew.-% einer Vielzahl von Abschnitten des Faservlies, die an ein oder mehrere Faserbälle angrenzend sind, selbst aber nicht einen oder mehrere Faserbälle oder einen beliebigen Abschnitt davon umfassen,
    und wobei die Wattefüllung eine Dichte von 2 bis 12 kg/m3 aufweist.
  2. Wattefüllung gemäß Anspruch 1, wobei die synthetischen Fasern Polyesterfasern umfassen.
  3. Wattefüllung gemäß Anspruch 1, wobei die synthetischen Fasern ein Denier von 1,0 bis 2,0 aufweisen.
  4. Wattefüllung gemäß Anspruch 1, wobei die synthetischen Fasern eine Länge von 20 mm bis 30 mm aufweisen.
  5. Wattefüllung gemäß Anspruch 1, wobei die Faserbälle einen durchschnittlichen Durchmesser von 4,0 bis 6,0 mm, vorteilhaft von 5,0 bis 6,0 mm, aufweisen.
  6. Wattefüllung gemäß Anspruch 1, wobei die Binderfasern ein Denier von 1,5 bis 3,5, vorteilhaft von 1,9 bis 2,5, aufweisen.
  7. Wattefüllung gemäß Anspruch 1, wobei die Binderfasern eine Länge von 18 mm bis 51 mm aufweisen.
  8. Wattefüllung gemäß Anspruch 1, wobei die Binderfasern eine Klebetemperatur von weniger oder gleich 200 °C, vorteilhaft von 80 °C bis 150 °C, und vorteilhafter von 100 °C bis 125 °C, aufweisen.
  9. Wattefüllung gemäß einem der vorstehenden Ansprüche, wobei die Fasermischung umfasst:
    - 75 bis 90 Gew.-% synthetische Fasern; und
    - 10 bis 25 Gew.-% Binderfasern.
  10. Wattefüllung gemäß Anspruch 9, wobei das Faservlies umfasst:
    - 70 bis 90 Gew.-% der Vielzahl an Faserbällen; und
    • 10 bis 30 Gew.-% der Vielzahl an Abschnitten des Faservlies, die an ein oder mehrere Faserbälle angrenzend sind, selbst aber nicht einen oder mehrere Faserbälle oder einen beliebigen Abschnitt davon umfassen.
  11. Wattefüllung gemäß einem der Ansprüche 1 bis 8, wobei die synthetischen Fasern silikonisierte oder gekräuselte Fasern mit einer spiralförmigen Kräuselung oder einer Standardkräuselung sind.
  12. Wattefüllung gemäß einem der Ansprüche 1 bis 8, wobei die Binderfasern Bikomponentenfasern sind, die eine Hülle und einen Kern umfassen, wobei die Hülle ein Material mit einem niedrigeren Schmelzpunkt als der Kern umfasst.
  13. Artikel, umfassend eine Wattefüllung gemäß einem der Ansprüche 1 bis 8, vorteilhaft ausgewählt aus der Gruppe bestehend aus Überbekleidung, Kleidung, einem Schlafsack und Bettzeug.
  14. Verfahren zur Herstellung einer Wattefüllung gemäß einem der Ansprüche 1 bis 8, wobei das Verfahren umfasst:
    - Mischen von Fasern, umfassend
    • 40 bis 95 Gew.-% synthetische Fasern mit einem Denier von 0,5 bis 6,5 und einer Länge von 18 mm bis 51 mm; und
    • 5 bis 40 Gew.-% Binderfasern mit einem Denier von 1,0 bis 5,0 und einer Länge von
    18 mm bis 71 mm, wobei die Binderfasern eine Klebetemperatur von niedriger als die Erweichungstemperatur der synthetischen Fasern aufweisen,
    wodurch eine Fasermischung geformt wird;
    - Formen einer Vielzahl von Faserbällen aus der Fasermischung;
    - Formen eines Faservlies aus der Fasermischung, wobei das Faservlies umfasst:
    • 50 bis 95 Gew.-% einer Vielzahl von Faserbällen mit einem durchschnittlichen Durchmesser von 3,0 bis 8,0 mm; und
    • 5 bis 50 Gew.-% einer Vielzahl von Abschnitten des Faservlies, die an ein oder mehrere Faserbälle angrenzend sind, selbst aber nicht einen oder mehrere Faserbälle oder einen beliebigen Abschnitt davon umfassen; und
    - Erhitzen des Faservlies auf oder über die Klebetemperatur der Binderfasern hinaus, wodurch die Wattefüllung geformt wird.
  15. Verfahren gemäß Anspruch 14, wobei das Faservlies unter Verwendung eines Luftlegesystem gebildet wird.
EP15871047.5A 2014-12-17 2015-12-17 Faserballwattefüllung und artikel damit Active EP3234244B1 (de)

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US201462093293P 2014-12-17 2014-12-17
PCT/US2015/066284 WO2016100616A1 (en) 2014-12-17 2015-12-17 Fiberball batting and articles comprising the same

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EP3234244A4 EP3234244A4 (de) 2018-07-11
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US10480103B2 (en) 2015-05-22 2019-11-19 Primaloft, Inc. Self-warming insulation
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US10633244B2 (en) 2015-09-29 2020-04-28 Primaloft, Inc. Blowable floccule insulation and method of making same
CN106835493A (zh) * 2017-03-01 2017-06-13 杭州缔星纤维科技有限公司 一种多纤维层复合材料及其制作方法和应用
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DK3234244T3 (da) 2020-03-02
CN107407027B (zh) 2020-04-21
ES2773473T3 (es) 2020-07-13
KR20170097067A (ko) 2017-08-25
RU2694282C2 (ru) 2019-07-11
TWI711731B (zh) 2020-12-01
RU2017125235A (ru) 2019-01-17
EP3234244A4 (de) 2018-07-11
PL3234244T3 (pl) 2020-06-01
JP2018500472A (ja) 2018-01-11
EP3234244A1 (de) 2017-10-25
JP6669755B2 (ja) 2020-03-18
WO2016100616A1 (en) 2016-06-23
RU2017125235A3 (de) 2019-04-23
CN107407027A (zh) 2017-11-28
US20170362755A1 (en) 2017-12-21
TW201723262A (zh) 2017-07-01

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