CN100430548C - Thermal control nonwoven material - Google Patents

Thermal control nonwoven material Download PDF

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Publication number
CN100430548C
CN100430548C CNB018167306A CN01816730A CN100430548C CN 100430548 C CN100430548 C CN 100430548C CN B018167306 A CNB018167306 A CN B018167306A CN 01816730 A CN01816730 A CN 01816730A CN 100430548 C CN100430548 C CN 100430548C
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China
Prior art keywords
phase
supatex fabric
adhesive
net
change material
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Expired - Lifetime
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CNB018167306A
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Chinese (zh)
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CN1636090A (en
Inventor
P·格伊纳休斯
D·鲁斯塞尔
T·奥雷干
S·G·约瀚逊
D·S·蒂伊特尔
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Freudenberg Performance Materials GmbH and Co KG
Noxet UK Ltd
Frisby Technologies Inc
Original Assignee
Freudenberg Vliesstoffe KG
Texon UK Ltd
Frisby Technologies Inc
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Priority claimed from GBGB0019142.9A external-priority patent/GB0019142D0/en
Application filed by Freudenberg Vliesstoffe KG, Texon UK Ltd, Frisby Technologies Inc filed Critical Freudenberg Vliesstoffe KG
Publication of CN1636090A publication Critical patent/CN1636090A/en
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Publication of CN100430548C publication Critical patent/CN100430548C/en
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    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite 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
    • D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • 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
    • D04H1/413—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 containing granules other than absorbent substances
    • 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
    • D04H1/425—Cellulose series
    • 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
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • D04H1/4334—Polyamides
    • 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
    • D04H1/42—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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends

Abstract

A nonwoven textile having reversible enhanced thermal control properties, the material comprising: a bat or web bonded by polymeric bonder containing thermal control material within the interior of the bat or web, wherein the thermal control material is dispersed throughout the interior of the polymeric binder, and wherein the thermal control material is substantially entirely within the interior of the nonwoven textile.

Description

Thermal control nonwoven material
Invention field
The present invention relates to nonwoven material as winter protection or solar heat protection environmental condition clothes component.More particularly, the present invention relates to utilize the goods of phase-change material with absorption and release heat.For example, the present invention relates to be used to keep the shoe-pad and the lining material of hot weather in the sealing footwear.
Background of invention
The fibre that applies with phase-change material is well-known.For example, comprise following publication and patent disclosure United States Patent (USP) 6 077 597 such and Related product: Pause a kind of three layers of adiabatic system are disclosed.Ground floor is the elastic substrate of handling with a kind of coating, is dispersed with the microsphere that contains phase-change material in this coating.The second layer is a kind of mat of fibers, wherein is dispersed with the microsphere that contains phase-change material.The 3rd layer is elastic substrate.The United States Patent (USP) 4 939 020 of Takashima etc. discloses a kind of non woven fibre, and this fiber contains the coating composition of a kind of ethylene containing polymer, thermoexpandable microcapsules and rhodanate (ester) compound.The United States Patent (USP) 5 722 482 and 6 004 662 of Buckley discloses the elastic composite that contains phase-change material.The PCT application WO 95/34609 of Gateway Technologies discloses the fiber coating that comprises phase-change material, is dispersed with polymer adhesive, surfactant, dispersant, defoamer and thickener in this material.The United States Patent (USP) 5 366 801 of Bryant etc. and european patent application 611 330 B1 disclose the goods of the fiber base material that contains coated polymer adhesive and microcapsules.The United States Patent (USP) 4 756 958 of Bryant etc. discloses the sewing work that contains the integrated microsphere that is full of phase-change material.
Summary of the invention
The present invention is derived from a kind of discovery, i.e. new combination of material and configuration can be applied to develop non-woven thermal control textiles, and this kind textiles is to provide winter protection or anti-heat condition.Nonwoven textiles can be the multipurpose goods, is suitable for introducing clothes such as jacket, trousers, shirt, overcoat, cap, necktie etc. and footwear such as footwear and boots as interlayer.For example, make shoe-pad or Box Toe and help keeping hot weather in the footwear, this is more more effective than traditional material or method.Non-woven product can be used as suitcase and handbag lining, also can be used in the production medical garment.
" the non-woven product " of Shi Yonging are meant to be different from by customary meaning and weave or knit goods herein, contain the fabric of the continuous or spinning of bonding with staple fiber.The term of Shi Yonging " footwear " is interpreted as referring generally to sufficient exterior-applied article of generation herein.
Unless expressly stated otherwise,, under all technology of herein using and scientific and technical terminology and the present invention the those of ordinary skill in the field generally the meaning of understanding is identical.Realize or detection the present invention although method similar or identical with material with the method for introducing herein and material can be used in, also will be introduced below suitable method and material.All publications, patent application, patent and other lists of references of mentioning are incorporated herein by reference in full at this.Just in case conflict is arranged, this specification comprises that definition will control.In addition, material, method and embodiment only are used for illustrating the present invention for example, and do not want to limit the present invention.
Brief description
Fig. 1 is the schematic diagram of the non-woven fabric material of specific embodiments of the present invention.
Fig. 2 is the schematic diagram of the non-woven fabric material of another specific embodiments of the present invention.
In detail explanation
The thermal control non-woven material has polymer-bonded dose of dispersion and spreads all over its inside, and thermal control nonwoven material also disperses to spread all over the inside of adhesive simultaneously. Adhesive can be that to fill continuously also can be discontinuous in the non-woven product, and this point will be explained. Thermal control non-woven material of the present invention can winter protection or thermal environment, and what lean on is to absorb and/or release heat from the thermal control material.
Supatex fabric can be made of various materials. For example, by bicomponent material or the mixture of cellulose, polyolefin (such as polyethylene, polypropylene etc.), polyester, polyamide (for example nylon), above-mentioned substance, even also have inorganic fiber to form supatex fabric. These fibre lengths can be between about 0.3～7cm, this depends on the method for required one-tenth net and bonding, another selection is that filament can be longer, comprises by spunbond/molten blowing technology the melting polymer is carried out the continuously extruded filament of making or fiber fabric. Fiber length ranges can be about 0.5～30 dawn.
Supatex fabric divides two different steps to make: the first step is to form loose bat or net, second step is bonding these bats or net, for example uses adhesive or carries out the physics clinkering in the junction of these bats or net or tangle these bats or net become supatex fabric.
The formation of net can use any known method of this area to carry out, and for example, makes net by dry-laying technology, and wherein, the rotation roller that has serration with the edge comes the combing monofilament to become to be essentially parallel suede or unidirectional network.Can be with these unidirectional network cross lapping method net-forming process, at an angle to each other stacking between the wherein single unidirectional network.In addition, for example can also make net by wet laying process, wherein fiber dispersion is in water and pass belt screen, and water squeezes out from sieve, and has formed net on belt.This method can be produced fine and close, homogeneous and tough net.Can generate random web (isotropic) net by flow deposition, this method comprises fiber is blown on the sieve at random.In other embodiments, fiber can be placed randomly preformed in order on the nonwoven scrim that replaces sieve.For example, fiber can be blown to preformed the online of adhesive that have, form that one deck has the thermal control performance and another layer do not have the double-layer product of this performance, be dispersed with heat control material in the wherein this adhesive.For example, this product can form about 200g/m by enough supatex fabric that comprises heat control material 2One deck, and about 200-800g/m 2Another layer nonwoven be blown on the thermal control nonwoven product.
Also can the be enough molten method of blowing of random web is made, and wherein fiber directly is spun into polymer, and tears into different length with air-flow, deposits then and forms matrix.In addition, spun-bond process also can be used for producing the circular fiber silk from feed particles.This fiber extends by (thermal current) and is deposited as net.This method is to produce supatex fabric with the single stage continuation method.
For the structure of shoe-pad, supatex fabric can be many forms.The material type of using depends on the required final use of material.For insole material, non woven fibre preferably contains plate hard, rigidity, and this hardboard for example divides the polyester fiber of Tekes value and the mixture of rigid polymer adhesive to form by having certain limit.For the air cushion type shoe-pad, non-woven fabric preferably contains, and for example, the mixture that divides the Tekes value to be about the polymer adhesive of 6 thick polyester fibers and soft resiliency is so that material has resiliency and open architecture.
After net forms, in some embodiments, after net (following description) being implemented any final slight pre-bonding, their are immersed in the bath of the suspension that contains polymer adhesive and heat control material or dispersion liquid.According to method described herein, wherein on the crosspoint, net is got up to have formed supatex fabric with adhesives at least.In some embodiments, net is aggregated the thing adhesive basically, and filling is full continuously, and in some other embodiment, polymer adhesive only exists in the net junction basically, has been full of gas such as air in the slit basically.Adhesive useful in fabric of the present invention is solid-state under the fabric serviceability temperature, but the supatex fabric that is preferably formed rinsing and can dry-cleans.If the use solvent, adhesive can have high-melting-point.Yet if do not dissolve, suitable bonding is a fluid below net matrix material softening point generally.Some suitable bonding is a polymeric material.Useful especially is polymer emulsion or dispersion liquid, and it is for example by self-crosslinking or self and net is crosslinked can form key gluing and/or that adhere in net.The example of polymer adhesive comprises acrylic resin and polyacrylic resin, methacrylic resin and polymethacrylate resin, polyurethane, acrylonitrile-butadiene rubber, styrene/butadiene copolymers, chloroprene rubber, polyvinyl alcohol or ethylene/vinyl acetate copolymer, with and composition thereof.
Also can use emulsion binder, comprise the water-based emulsion mixture.Advantageously emulsion binder contains hard styrene/butadiene rubbers latex.Adhesive preferably includes thickener such as ammonia and can react the acrylic rubber of thickened mixt with thickener (for example ammonia).For example, suitable emulsion binder contains the using polymer S30R of 75 weight % and the Synthomer of 25 weight % TM7050 mixture.This mixture can enough ammonia and acrylic rubber such as Viscalex TMHV30 (Allied Colloids production) thickening.
The example of heat control material comprises the phase-change material as following introduction.
Degree necessity that this submergence step is carried out immerses in the net suspension or dispersion liquid basically fully.Bath can be heated, so that the fiber generation hot melt adhesive on the crosspoint.Dry net is removed any solvent (being water) then, obtains to have at the net materials infall supatex fabric of adhesive and heat control material like this.Alternately or additionally be that net can be by the roller that can heat or not heat.Warm or hot-air also can be used in dry net.In some embodiments, the net infall of acquisition is full of adhesive and heat control material basically.
Adhesive almost completely is in net self crosspoint in the preferred embodiment of the invention, and all the other infalls are filled full gas, are generally air, to give the material heat-proof quality.Translate into Fig. 1 and 2, the supatex fabric of part shown in it 1 contains net materials 2, has connection 3 and infall or space 4.Adhesive 5 is dispersed in each place of net and is positioned at net materials fiber junction, and is dispersed with heat control material 6 entirely.In certain embodiments, the remainder of net does not contain adhesive.Adhesive as will net the binding agent that self links to each other with heat control material each other with net the adhesive that links to each other, this has just formed the bonded nonwoven fabric that wherein is dispersed with heat control material.
The supatex fabric of these embodiments can utilize adhesive surface tension force and adhesive to prepare with net and the affinity of self.Show the adhesive that excessive self-adhesion makes a concerted effort and be not easy to adhesive net, the adhesive that net is shown undue affinity then can not form island or bead in the net crosspoint.Also can the degree of net crosspoint formation island and bead be exerted an influence from the speed of any solvent of adhesive removing.Solvent removal is too fast, and adhesive can not be moved to the net contact position.Those skilled in the art is general to be selected and the good solvent removal speed of the affine Performance Match of adhesive rank.
In other embodiments, be full of adhesive in the net basically fully, all disperseed heat control material in the adhesive.According to the purposes difference, the adhesive material of fill-net requires to have elasticity relatively, or also may require hard relatively in the embodiment.
The viscosity that also can regulate adhesive is to produce the supatex fabric that adhesive is condensed in the net bonding part.In these embodiments, adhesive condenses at the infall of net, as illustrated in fig. 1 and 2.The key of net even preferably carries out after net forms immediately, promptly by net being immersed in the adhesive bath that contains heat control material.In addition, comprise that adhesive spraying bonding, hot adhesion processing, acupuncture processing and water spray the slight pre-binder-treatment of binder-treatment and so on and can carry out before the last bonding of bath operation of net immersion adhesive and nonwoven articles.These processing can be given various qualities to finished product, and this point is well-known to those skilled in the art.For example, acupuncture or water spray bonding can be used in the fine and close relatively and hard supatex fabric of production, and the supatex fabric of light relatively large volume, and this depends on acupuncture or water spray density and pressure.In certain embodiments, preferred nonwoven needled feltwork.In a further embodiment, the net that spins (silk) sticking (closing) can immerse in the above-mentioned chemicals bath in its bonding back.
The heat control material that can use in fabric is those materials that are suitable for winter protection and/or heat.Useful especially heat control material comprises phase-change material.Capsule is sealed particularly micro-encapsulated phase-change material in the present invention of great use.The microcapsules that are suitable among the present invention can comprise various materials.The selection of material only only limits to fabric treating condition disclosed herein.The diameter that is suitable for microcapsules of the present invention is 15.0～2000 μ m, is preferably 15～500 μ m, most preferably is 15～200 μ m.Phase-change material also is well suited for being encapsulated among the microcapsules, and wherein the diameter of microcapsules can be identical or bigger with the diameter of the material that constitutes supatex fabric.
Phase-change material is to utilize with reversible transition to transform the latent heat absorption relevant as the solid-liquid conversion.Some phase-change material also can absorb or discharge heat when solid-solid phase transforms.Like this, this material just can be used as heat absorbent, absorbs extra heat to prevent object, because phase-change material just can absorb a certain amount of heat energy before temperature raises.Phase-change material also can preheating, as winter protection protection barrier, because before phase-change material temperature begins to descend, must have more substantial heat to remove from phase-change material.The preferred phase-change material of the present invention is to utilize reversible solid-liquid to transform.
Admittedly the core material of phase-change material in microcapsules melts or solidifies or pass through when consolidate-transforming, with the form storage heat energy of state physical change.These materials certain steady temperature (its phase transition temperature) before phase transformation will absorb or discharge heat down.Like this, these materials just can be used as heat absorbent, will be absorbed by phase-change material and prevent that object from absorbing unnecessary heat with some heat energy before object temperature raises.Phase-change material also can be preheated, as winter protection protection barrier, because before object temperature begins to descend, must have more substantial heat to remove from phase-change material.In order to keep the circulation ability of phase-change material between solid phase and liquid phase, it is very important protecting it not disperseed fully by solvent (or carrier fluid) when these phase-change materials are liquid state.Successful a kind of method is, these phase-change materials are encapsulated among film or the shell with capsule.These films or shell need obstruction heat within reason to pass or spread out of capsule.Also need capsule enough little to have high relatively surface area.Carrier fluid can promptly be imported or spread out of to this feasible heat into.These capsules are known as microcapsules, and its size can be made according to the known conventional method of those skilled in the art for about 10-50um.Heat is crossed microcapsules, and to enter its inside should be effective in the present invention maximum utilization.
The composition that can change phase-change material is to obtain the optimal heat performance in given temperature range.For example, as shown in the table, (common, structural formula is C to the paraffin series hydrocarbon nH 2n+2Straight-chain hydrocarbons) fusing point directly related with carbon number.
Table 1. alkane phase transition temperature
Compound name Number of sulfur atoms The alkane point (℃)
N-decane 10 -32
N-undecane 11 -26
N-dodecane 12 -11
N-tridecane 13 -5.5
N-tetradecane 14 5.9
N-pentadecane 15 10.0
Hexadecane 16 18.2
N-heptadecane 17 22.0
N-octadecane 18 28.2
NSC 77136 19 32.1
N-eicosane 20 36.8
Heneicosane 21 40.5
N-docosane 22 44.4
N-tricosane 23 47.6
N-tetracosane 24 50.9
Pentacosane 25 53.7
N-hexacosane 26 56.4
Heptacosane 27 59.0
Positive octacosane 28 61.4
Positive nonacosane 29 63.4
Positive melissane 30 65.4
Positive hentriacontane 31 68.0
N-dotriacontane 32 70.0
Positive tritriacontane 33 71.0
Positive tetratriacontane 34 72.9
N-hexatriacontane 36 76.1
Except listed herein alkane, other paraffin series alkane with more (or still less) carbon number, fusing point higher (or lower) also can use in enforcement of the present invention.In addition, can consider also that plastic crystal is as 2,2-dimethyl-1, ammediol (DMP) and 2-methylol-2-methyl isophthalic acid, ammediols etc. are as the temperature stabilization thing.If plastic crystal absorbs heat energy, it only changes molecular structure and does not break away from solid phase.
Being used in combination of any phase-change material also is feasible.Micro-encapsulated phase-change material (MicroPCM) requires evenly to distribute in polymer adhesive.In some embodiments, be that MicroPCM can use for example Dispex of dispersant with before emulsion binder mixes TMA40 is pre-dispersed in water.According to these embodiments, phase-change material is with respect to water weight, and the solid dispersed of preferred about 30～60 weight % or is preferably about 40～45 weight % in water.When hope prepares water/MicroPCM mixture, preferred water/MicroPCM mixture and emulsion binder are mixed together, so that the ratio of MicroPCM and latex is about 0.5～2: 1. the ratio of dry adhesives and matrix nonwoven material is preferably about 0.3: 1～3: 1.This preferred ratio depends on the performance that finished product is required.For the lining shoe-pad, ratio is preferably about 0.3～0.5: 1.For lining material, ratio is preferably about 1: 1, and for hard shoe-pad, ratio is preferably about 2.5: 1.Randomly, binder combination can contain colouring agent.
The example of phase-change material is a paraffin series alkane, and promptly structural formula is expressed as C nH 2n+2(straight chain) alkane, wherein n is 10～30, preferred n is 13～28 paraffin series alkane.Other suitable phase-change material compounds have 2,2-dimethyl-1, ammediol (DMP), 2-methylol-2-methyl isophthalic acid, ammediol (HMP) and similar compound.The fatty ester class also is useful as methyl hexadecanoate.Preferred paraffin series alkane is as phase-change material.
By the regeneration of phase-change material is provided, the thermal control performance of fabric disclosed herein can be made reversible.During warming, for example, phase-change material melts gradually; During turning cold, phase-change material solidifies gradually.One of regeneration of phase-change material is that supatex fabric is put into temperature is to make phase-change material revert to the environment of the required suitable phase of protection.
To most of embodiments, the fusing point of the composition of phase-change material or activationary temperature are about 15～55 ℃ (60～130 °F), and useful scope is 26～38 ℃ (80～100 °F).Use for great majority, activationary temperature is preferably about 28 ℃ (83 °F).Easily, the different stage of phase-change material can be applicable to different application.For example, the shoe-pad that is applied to the high activationary temperature of about 35 ℃ (95) is favourable, and the low activationary temperature of about 28 ℃ (83) is useful on upper of a shoe or uses the flap position.Can select various activationary temperature to be satisfied with natural difference from sole to instep skin.
The specification of heat control material discussed herein can change according to its use.The weight of net is about 15～1000g/m 2, preferred about 40～700g/m 2Or about 50～150g/m 2
For example, when interlayer that is used as clothes or footwear or heat-barrier material, fibroreticulate weight is about 15～200g/m 2, preferred about 50～160g/m 2Such net can the about 5～600g/m of load 2Adhesive and phase-change material, be preferably adhesive and the phase-change material of about 50～450g/m2.When using as interlayer or being used for clothes and during the pin articles for use, the thickness of supatex fabric is about 0.5～the highest 20mm.During as shoe-pad or material lining, original depth is preferably about 0.5～5mm, yet during as the air-cushion type shoe-pad, original depth is about 5～15mm.
The present invention further provides the method for making shoe-pad or lining material, it may further comprise the steps: 1) phase-change material and the liquid polymer adhesive sealed of mixing microcapsule, wherein phase-change material contains and is encapsulated in fixingly with the material with reversible heat accumulation character in the polymer, and has activationary temperature near body temperature (body temperature is normal skin physiology temperature) herein; 2) with binder combination dipping nonwoven web matrix material; With 3) material behind the dry dipping.Preferred this method also is included in mixes the step of pre-dispersed micro-encapsulated phase-change material in water before with the liquid polymers adhesive.Preferred dispersant such as the Dispex of using TMA40 is pre-dispersed in water micro-encapsulated phase-change material.Preferred this method also comprises the step that adds thickener in binder combination.Have been found that increasing mixture viscosity helps improving stability, during dipping reduce it and spill and separate, and make finished product that better outward appearance be arranged from microcapsules.The material that stain was soaked is preferably dry under about 120 ℃, and this method also preferably includes the step of cure polymer adhesive material.The favourable temperature that curing schedule carries out is about 140 ℃.This method also preferably further comprises the step of sorted material, for example classifies stuff into required specification, and matte supatex fabric liner surface and application viscosity or protective finish are with auxiliary shoe-making process.
The present invention further provides a kind of shoe-pad, it contains non-woven matrix material, polymer adhesive and is dispersed in micro-encapsulated phase-change material in the adhesive, wherein phase-change material contains and is encapsulated in fixingly with the material with reversible heat accumulation character in the polymer, and phase-change material has the activationary temperature near body temperature (body temperature is normal skin physiology temperature) herein.
The present invention will further describe among the embodiment below, and it is not limited in the described scope of claim of the present invention.
Embodiment
The preparation of embodiment 1. supatex fabric
Go out 50g/m with containing 1.7dtex, 38mm filametntary 100% cotton/polyester fiber blends combing long and 3.3dtex, 38mm length 2Net or bat.Bat is immersed in the adhesive bath, and dry in 160 ℃ drier, to obtain heavy 111g/m 2Product, it contains 61g/m 2Adhesive and phase-change material.Like this, acrylic ester adhesive dry matter weight self-crosslinking, vitrification point Tg=-10 ℃ is 15g/m in the product 2, the product phase-change material (
Figure C0181673000141
83, come from Frisby scientific ﹠ technical corporation) be 46g/m 2, wherein the weight ratio of adhesive and phase-change material is 1: 3.1, bat or net and phase-change material add that the weight ratio of adhesive is 1: 1.2.
The preparation of embodiment 2 another kind of supatex fabric
The mixture of the polyamide 6 .6 fiber that polyester fiber that the 1.7dtex with 50%, 38mm are long and 50% 3.3dtex, 38mm are long is made 110g/m 2Bat or net, and bond in advance with needle point method.Bat immerse adhesive bathe in and dry in 165 ℃ drier, to obtain heavy 289g/m 2Product, it contains 179g/m 2Adhesive and phase-change material.Like this, acrylic ester adhesive dry matter weight self-crosslinking, vitrification point Tg=-32 ℃ is 30g/m in the product 2, the product phase-change material ( 83, come from Frisby scientific ﹠ technical corporation) be 149g/m 2, wherein the weight ratio of adhesive and phase-change material is 1: 4.9, bat or net and phase-change material add that the weight ratio of adhesive is 1: 1.6.
Embodiment 3 also has the preparation of another kind of supatex fabric
The mixture of polyamide 6 .6 that polyester fiber that the 1.7dtex with 90%, 50mm are long and 10% 3.3dtex, 50mm are long and two component fibres of polyamide 6 is made 75g/m 2Bat or net, and in 205 ℃ vacuum drying oven, bond in advance with hot sticky connection.As embodiment 2 bat immerse adhesive bathe in and dry in 165 ℃ drier, to obtain heavy 237g/m 2Product, wherein the weight ratio of adhesive and phase-change material is 1: 4.9, bat or net and phase-change material add that the weight ratio of adhesive is 1: 2.2.
Embodiment 4 is suitable for the preparation of the supatex fabric of making insole material
Be suitable as the nonwoven needled felt of the cotton/polyester fiber blends of shoe-pad with water base emulsion binder dipping, produce and indicate the felt of T90 such as for example Texon (UK) Co., Ltd.Adhesive contains following composition by weight:
Thermasorb TMMicrocapsules 90) pre-dispersed
Dispex TMA40 0.9) solid content
Water 109) of 45%
The polymer S30R 100 that uses
Synthomer TM 7050 33
Colouring agent 15
Ammonia 1.5
10％Viscalex TM HV30 25
This makes heat absorbent (Thermasorb TM) with the content ratio of rubber be 1.25: 1, solid content 43.2%.
The thick polyester acupuncture felt pan of 40cm * 14cm, 4.0mm floods with binder combination, and dry adhesives is 1.70: 1 with the ratio of felt.The impregnated material that obtains is dry under 120 ℃, and solidifies down at 140 ℃.The heavy 1850g/m of finished-product material 2, specification is 4.2mm, heat absorbent (Thermasorb TM) content is 22% or 400g/m 2This material can provide the energy storage capacity of about 49～50 joule/gram, as when the shoe-pad, can provide cooling or warming effect.
Embodiment 5 is suitable for the preparation of the supatex fabric of making the air-cushion type insole material
Be suitable as the non-woven pin felt of the thick polyester fiber of air-cushion type shoe-pad with water base emulsion binder dipping, produce and be designated as the felt of T100 such as for example Texon (UK) Co., Ltd.Adhesive contains following composition by weight:
Thermasorb TMMicrocapsules 90) pre-dispersed
Dispex TMA40 0.9) solid content
Water 109) of 45%
Latex 2,890 200
Colouring agent 15
Ammonia 1.5
10％Viscalex TM HV30 25
This makes heat absorbent (Thermasorb TM) with the ratio of rubber content be 1.13: 1, solid content 38.5%.
The thick felt pan of 40cm * 14cm, 4.0mm floods with binder combination, and dry adhesives is 1.50: 1 with the ratio of felt.The impregnated material that obtains is dry under 120 ℃, and solidifies down at 140 ℃.The heavy 900g/m of finished-product material 2, specification is 4.2mm, heat absorbent (Thermasorb TM) content is 23% or 200g/m 2This material can provide the energy storage capacity of about 57～58 joule/gram, as when the shoe-pad, can provide cooling or warming effect.Sample test result according to embodiment 4 and 5 pairs of preparations shows that shoe-pad of the present invention and lining material provide conspicuous cooling or warming effect when shoe lining uses.
Other embodiments
Should be understood that, introduced the present invention although unite detailed description, described description is to wish to illustrate for example rather than limit the scope of the invention, and scope of the present invention is limited by additional claim scope.Other aspects, advantage and modification are also within following claim scope.

Claims (41)

1. supatex fabric with reversible thermal control performance of enhancing, this material contains: the non-woven bat or the net that are bonded together by bat or the inner polymer adhesive that contains the heat control material of sealing of net, wherein heat control material is dispersed in polymer adhesive inside, and heat control material is in the inside of non-woven bat or net basically fully.
2. the supatex fabric of claim 1, wherein fabric is shoe-pad or lining.
3. the supatex fabric of claim 2, wherein polymer adhesive uses with liquid form, solidifies then.
4. the supatex fabric of claim 1, wherein nonwoven material is the mixture of bi-component material, polyacrylate, cellulose or the above-mentioned substance of polyolefin, polyester, polyamide, above-mentioned material.
5. the supatex fabric of claim 1, wherein the weight ratio of bat or net and adhesive and heat control material total amount is 1: 0.5～1: 3.
6. the supatex fabric of claim 1, wherein the weight ratio of adhesive and heat control material is 1: 0.5～1: 6.
7. the supatex fabric of claim 1, wherein heat control material contains the microcapsules of phase-change material.
8. the supatex fabric of claim 7, wherein the diameter of microcapsules is not less than the diameter of bat or net materials.
9. the supatex fabric of claim 7, wherein phase-change material contains hydrocarbon.
10. the supatex fabric of claim 7, wherein phase-change material is to carry out phase transformation under 43～175 °F in temperature.
11. the supatex fabric of claim 10, wherein phase-change material is to carry out phase transformation under 75～95 °F in temperature.
12. the supatex fabric of claim 10, wherein phase-change material carries out phase transformation near body temperature the time.
13. the supatex fabric of claim 1, wherein heat control material contains at least two kinds of phase-change materials that undergo phase transition under at least two different temperatures.
14. the supatex fabric of claim 1, wherein nonwoven material contains bat or net, and these bats or net have the joint portion at himself connecting place.
15. the supatex fabric of claim 14, wherein polymer adhesive is present in the joint portion of net.
16. the supatex fabric of claim 1, wherein supatex fabric weight is 15～200g/m 2
17. the supatex fabric of claim 16, wherein supatex fabric weight is 50～150g/m 2
18. the supatex fabric of claim 1, wherein polymer adhesive contains emulsion binder.
19. the supatex fabric of claim 18, wherein polymer adhesive contains the water-based emulsion mixture.
20. the supatex fabric of claim 1, wherein bat or net contain the nonwoven needled felt.
21. the supatex fabric of claim 20, wherein polymer adhesive contains the styrene butadiene ribber latex.
22. the supatex fabric of claim 1, wherein polymer adhesive also contains thickener.
23. the supatex fabric of claim 22, wherein thickener comprise ammonia and with the acrylic based emulsion of ammonia react.
24. interlayer that contains the supatex fabric of claim 1.
25. clothes that contains the interlayer of claim 24.
26. supatex fabric footwear member that contains claim 1.
27. prepare the method for supatex fabric, wherein supatex fabric contains the net with joint portion, this method comprises with adhesive fixes this net in its joint portion, and adhesive contains heat control material.
28. the method for a solar heat protection, this method comprises the fabric that claim 7 is provided, and wherein phase-change material is a solid phase, and phase-change material undergoes phase transition under the temperature that is lower than this heat temperature.
29. an antifreeze method, this method comprises the fabric that claim 7 is provided, and wherein phase-change material is a liquid phase, and phase-change material undergoes phase transition being higher than under the temperature of this cryogenic temperature.
30. the method for claim 27, wherein heat control material be distributed in the water before adhesive mixes.
31. the method for claim 30, wherein the heat control material weight that accounts for water with solid material is 30～60% to be scattered in the water.
32. the method for claim 31, wherein the heat control material weight that accounts for water with solid material is 40～45% to be scattered in the water.
33. the method for claim 30, wherein water/heat control material mixes with adhesive, and making the heat control material and the ratio of adhesive solids is 0.5～2: 1.
34. the method for claim 30, wherein the weight ratio of adhesive and net is 0.3: 1～3: 1.
35. the method for shoemaking pad or lining material, this method comprises:
Phase-change material that mixing microcapsule is sealed and liquid polymer adhesive, wherein phase-change material contains and is encapsulated in fixingly with the material with reversible heat accumulation character in the polymer, and phase-change material has the activationary temperature near body temperature;
This nonwoven web matrix material of impregnation mixture with micro-encapsulated phase-change material and liquid polymer adhesive; With
Material behind the dry dipping.
36. the method for claim 35 is disperseed micro-encapsulated phase-change material in water before it also is included in and mixes with the liquid polymer adhesive.
37. the method for claim 36, wherein micro-encapsulated phase-change material is distributed in the water with dispersant.
38. the method for claim 35 also comprises in the mixture of micro-encapsulated phase-change material and liquid polymer adhesive adding thickener.
39. the method for claim 35, it also is included in 120 ℃ of materials behind the dry dipping.
40. the method for claim 35, it also comprises this dry material of curing.
41. the method for claim 35, it comprises this dry material of arrangement.
CNB018167306A 2000-08-05 2001-07-31 Thermal control nonwoven material Expired - Lifetime CN100430548C (en)

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GBGB0019142.9A GB0019142D0 (en) 2000-08-05 2000-08-05 Material for shoe insole and lining and method of making the same
GB0019142.9 2000-08-05
US23104000P 2000-09-08 2000-09-08
US60/231,040 2000-09-08
US69974400A 2000-10-30 2000-10-30
US09/699,744 2000-10-30
US09/750,212 US20020034910A1 (en) 2000-08-05 2000-12-28 Material for shoe insole and lining and method of making the same
US09/750,212 2000-12-28

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