CN101892527A - Fiber aggregate material formed by coating fine air pockets by microfibers and production process thereof - Google Patents
Fiber aggregate material formed by coating fine air pockets by microfibers and production process thereof Download PDFInfo
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- CN101892527A CN101892527A CN2010102134163A CN201010213416A CN101892527A CN 101892527 A CN101892527 A CN 101892527A CN 2010102134163 A CN2010102134163 A CN 2010102134163A CN 201010213416 A CN201010213416 A CN 201010213416A CN 101892527 A CN101892527 A CN 101892527A
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- air pocket
- fiber aggregate
- aggregate material
- microfiber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention discloses a fiber aggregate material formed by coating fine air pockets by microfibers, which is a novel fibrous material that two components microfibers and coarse fibers are symbiotic. The invention also discloses a production process for the fiber aggregate material, which comprises the following steps of: making a raw material pass through a spinning die orifice for direct melting spinning, and coating the molten polyolefine microfibers on the peripheries of polyester coarse fibers with the shape memory function, wherein the shape memory coarse fibers are used as a carrier for forming the air pockets; quickly cooling to normal temperature and curing; and finally, forming the microfiber aggregate material with irregular air pockets. The material can be used for making thermal materials of ski shirts, field tents, military battle-dress uniforms, thermal equipment for field camping of soldiers, sleeping bags, climbing clothes, thermal underwear, gloves and shoes, and is also used for making various sound-absorbing thermal insulation automobile interior materials and the like.
Description
Technical field
The present invention relates to a kind of microfiber and wrap up fiber aggregate material and the production technology thereof that tiny air pocket forms.
Background technology
In the market heat insulating material formed mainly contains three kinds.The one, natural material is as cotton wadding material, eider down, woolfell silk suede etc.; The 2nd, make by single purifying fiber material, as gum sprayed cotton flocculus, acupuncture flocculus etc.; The 3rd, multiple material is made through Compound Machining, as the space wadding on the market, South Pole cotton, sun velvet etc.
Shortcomings such as natural fabric washs inconvenience because the source is nervous, easily hardens, and proportion is bigger than normal and easily damage by worms, its application is very limited.Though the chemical fibre flocculus has sanction property, seamability, wear and washability preferably, hygroscopicity and gas permeability are relatively poor, and feeling of oppression and heat is arranged when wearing.It is heat insulating material formed that multiple material Compound Machining forms, because of its process tends to add some Chemical Felters, or, injury is arranged in environmental protection, to health by air-locked membrane material isolation etc., membrane material hinders gas permeability simultaneously, and human body is worn comfort level reduction when doing.
The material that uses aspect sound insulating and absorbing mostly is that in use there are a lot of defectives in these materials by sponge, asbestos, glass fibre, felt, rubber slab etc. in addition, as: damping and the sound insulation value of sponge are relatively poor.Water absorbing capacity adsorbs dust by force, easily, and car weight increases greatly behind the overcast and rainy or carwash, causes the rust corruption to vehicle body easily! In addition, not poor, generally not fire-retardant through the special sponge fire line of handling.Fiber crops felt, felt damping effect is general, though certain sound-absorbing, sound insulation capabilities are arranged, non-watertight, not anticorrosion.The glass fibre shortcoming is the easy contaminated environment of loose fiber; In pore is arranged, interconnect, steam can very easily immerse, individual product adds overcoat, if any breakage, can cause polluting, and health is threatened no sound absorbing power.Rubber slab has peculiar smell, is clamminess easily or comes off.
Summary of the invention
Goal of the invention: the present invention seeks in order to solve the deficiencies in the prior art, provide a kind of and wrap up the fiber aggregate material that tiny air pocket forms at the microfiber that is significantly increased aspect warming, heat insulation, sound absorption, sound insulation mechanism and the effect.
Another object of the present invention is in order to provide this microfiber to wrap up the production technology of the fiber aggregate material of tiny air pocket formation.
The technical solution used in the present invention: a kind of microfiber wraps up the fiber aggregate material that tiny air pocket forms, it is microfiber and the coarse-fibred homobium of polyesters that a kind of polyalkenes polymeric particles forms, the thickness of described fiber aggregate material is greater than 0.5cm, and density is greater than 20kg/M
3, light transmittance is less than 20%.
Above-mentioned microfiber wraps up the production technology of the fiber aggregate material of tiny air pocket formation, may further comprise the steps:
1. the polyalkenes polymeric particles is melted after extruder is clamp-oned melt metering pump, in melt metering pump is delivered to spray silk die orifice, the ejection microfiber;
2. below spray silk die orifice, be provided with air pocket and form cavity, form a side of cavity at air pocket, to send into continuously in the cavity through the crude fibre of screening by blower fan, send into the microfiber parcel of the molten state that the crude fibre in the cavity constantly sprays by top, form air pocket;
3. with the air pocket that forms after entering the expansion of air pocket expansion casing under the thrust of blast, form fiber aggregate material fluffy, the little air pocket of interior detail;
5. be provided with the lace curtaining receiving system of continuous running below air pocket expansion casing, the below of lace curtaining is provided with negative suction system, and the fiber aggregate material that forms is adsorbed on the lace curtaining, is delivered to the wrap-up rolling and can obtains described fiber aggregate material.
The both sides of described spray silk die orifice are provided with the high-speed and high-temperature airflow device, and the fiber in the spray silk die orifice is stretched.
As preferably, a described spray silk die orifice is the strip shape del, and the lateral length of spray silk die orifice is greater than 40cm, and described spray silk die orifice is shown the spinneret orifice that several diameters are 0.2-0.35mm in the horizontal direction linear rows, and the distance between described spinneret orifice is 0.2-2mm.
As further preferred, the lateral length of described spray silk die orifice is greater than 100cm, and the distance between spinneret orifice is 0.3mm, and the diameter of spinneret orifice is 0.25mm.。
Microfiber and crude fibre form homobium and design according to " Alpha " principle at the described air pocket expansion of the air pocket expansion casing casing that enters under the thrust of blast below the cavity, described air pocket enters young, the fiber aggregate material outlet is big, and inside is provided with a wikipedia type passage; Material solidifies after expanding case by Alpha, can have good bulking intensity and soft feel.
As preferably, the average diameter of described microfiber is less than 6 μ m, and preferred average diameter is less than 4 μ m, and more preferably average diameter is less than 2 μ m; Described coarse-fibred average diameter is 10-40 μ m, and length is 2-8cm, and preferred average diameter is 20-30 μ m, and preferred length is 4-6cm.
As preferably, described lace curtaining receiving system is 20-70cm with the distance of expansion casing outlet, by regulating receiving range, can obtain the different material of bulking intensity.
Beneficial effect: the air pocket of fiber aggregate material of the present invention by the crude fibre of shape refresh memory function the most carrier obtain, so this material has good compressibility and bulking intensity, have good resistance to compression shape restore funcitons simultaneously; The formed tiny air pocket of this aggregation is separated by the microfiber parcel, and the air in the air pocket has the function of damping flow conductance heat and damping sound wave conduction to independence; Can be used for absorbing various acoustic energy and the heat energy that relies on the air dielectric conduction, also can be used for warming heat insulation; Because the light transmittance of material less than 20%, can make material too not fluffy only big with air pocket.
This material can stop water droplet to pass through, but making gas soaked with sweat and can passing through of human body can be reduced to minimum to thermal convection current and thermal radiation transfer function, because fiber is thinner, feel is very soft, and moisture pick-up properties is relatively poor, even therefore in a humid environment, still can keep thermal property preferably; Can stop the convection current and the conduction of air, stop the forfeiture of heat, absorb more energy, have certain crushing resistance,, can be used for automobile, yacht, high ferro, aircraft, household electrical appliances, house ornamentation, industrial sound insulating and absorbing place as novel sound absorption heat-barrier material.
Description of drawings
Fig. 1 is a process chart of the present invention.
Fig. 2 is the structural representation of air pocket expansion casing of the present invention.
The specific embodiment
The invention will be further described below in conjunction with the specific embodiment:
Embodiment 1
The polypropylene polymeric particles is clamp-oned melt metering pump after the extruder fusing, in melt metering pump was delivered to a spray silk die orifice, the both sides of spray silk die orifice were stretched to the die orifice fiber by the high-speed and high-temperature air flow, obtain microfiber.Fibre fineness is selected 2 microns of average diameters, and spray silk die orifice is located at the top that an air pocket forms cavity, and the microfiber that is in molten state wraps up crude fibre rapidly in the air pocket cavity, forms air pocket.Form a side of cavity at air pocket, will be sent into continuously in the cavity through the crude fibre of screening by a blower fan, the microfiber of sending into the melting state that the crude fibre in the cavity constantly sprays by top wraps up.Between the polyester dacron crude fibre of selected shape refresh memory function, 20 microns of fibre fineness average diameters, length is 4cm.Air pocket forms microfiber and crude fibre in the case and forms homobium and expand casing at the air pocket that enters under the thrust of blast below the cavity, microfiber and coarse-fibred homobium form the fiber aggregate material one fluffy, that there is tiny air pocket inside after expansion casing expansion.50 centimeters are provided with a lace curtaining receiving system that turns round continuously below the expansion casing, there is a negative suction system below of lace curtaining, form negative pressure in expansion casing exit, the fiber aggregate material of formation is attracted on the lace curtaining, be delivered to wrap-up, be wound into operational fiber aggregate material according to the invention.This fiber aggregate material selects every Gram Mass to select 70 grams, 100 grams, 200 grams respectively.Warming test data is as follows:
Embodiment 2
The polypropylene polymeric particles is clamp-oned melt metering pump after the extruder fusing, in melt metering pump is delivered to a spray silk die orifice.A spray silk die orifice is one to have the linearly aligned spinneret orifice that is spaced apart 0.3 millimeter in a lateral direction, and the diameter of spinneret orifice is selected 0.25 millimeter.The lateral length of spray silk die orifice is greater than 100 centimetres.The both sides of spray silk die orifice are stretched to the die orifice fiber by the high-speed and high-temperature air flow, obtain microfiber.Fibre fineness is selected 2 microns of average diameters, and spray silk die orifice is located at the top that an air pocket forms cavity, and the microfiber that is in molten state wraps up crude fibre rapidly in the air pocket cavity, forms air pocket.Form a side of cavity at air pocket, will be sent into continuously in the cavity through the crude fibre of screening by a blower fan, the microfiber of sending into the melting state that the crude fibre in the cavity constantly sprays by top wraps up.Between the polyester dacron crude fibre of selected shape refresh memory function, 20 microns of fibre fineness average diameters, length is 4cm.Air pocket forms microfiber and crude fibre in the case and forms homobium and expand casing at the air pocket that enters under the thrust of blast below the cavity, microfiber and coarse-fibred homobium form the fiber aggregate material one fluffy, that there is tiny air pocket inside after expansion casing expansion.60 centimeters are provided with a lace curtaining receiving system that turns round continuously below the expansion casing, there is a negative suction system below of lace curtaining, form negative pressure in expansion casing exit, the fiber aggregate material of formation is attracted on the lace curtaining, be delivered to wrap-up, be wound into operational fiber aggregate material according to the invention.This fiber aggregate material selects every Gram Mass to select 300 grams respectively.
The sound absorption test data is as follows:
| Specimen coding | Surface density (g/m 2) | Average natural thickness (mm) | Microfiber diameter (um) |
| 4# | 301.16 | 21 | 1.78 |
Embodiment 3
The polypropylene polymeric particles is clamp-oned melt metering pump after the extruder fusing, in melt metering pump is delivered to a spray silk die orifice.A spray silk die orifice is one to have the linearly aligned spinneret orifice that is spaced apart 0.3 millimeter in a lateral direction, and the diameter of spinneret orifice is selected 0.25 millimeter.The lateral length of spray silk die orifice is greater than 100 centimetres.The both sides of spray silk die orifice are stretched to the die orifice fiber by the high-speed and high-temperature air flow, obtain microfiber.Fibre fineness is selected 2 microns of average diameters, and spray silk die orifice is located at the top that an air pocket forms cavity, and the microfiber that is in molten state wraps up crude fibre rapidly in the air pocket cavity, forms air pocket.Form a side of cavity at air pocket, will be sent into continuously in the cavity through the crude fibre of screening by a blower fan, the microfiber of sending into the melting state that the crude fibre in the cavity constantly sprays by top wraps up.Between the polyester dacron crude fibre of selected shape refresh memory function, 20 microns of fibre fineness average diameters, length is 4cm.Air pocket forms microfiber and crude fibre in the case and forms homobium and expand casing at the air pocket that enters under the thrust of blast below the cavity, microfiber and coarse-fibred homobium form the fiber aggregate material one fluffy, that there is tiny air pocket inside after expansion casing expansion.50 centimeters are provided with a lace curtaining receiving system that turns round continuously below the expansion casing, there is a negative suction system below of lace curtaining, form negative pressure in expansion casing exit, the fiber aggregate material of formation is attracted on the lace curtaining, be delivered to wrap-up, be wound into operational fiber aggregate material according to the invention.This fiber aggregate material selects every Gram Mass to select 400 grams respectively.
The sound absorption test data is as follows:
| Specimen coding | Surface density (g/m 2) | Average natural thickness (mm) | Microfiber diameter (um) |
| 5# | 402.56 | 34 | 1.82 |
Claims (9)
1. a microfiber wraps up the fiber aggregate material that tiny air pocket forms, it is characterized in that: it is microfiber and the coarse-fibred homobium of polyesters that a kind of polyalkenes polymeric particles forms, contain air pocket in the described fiber aggregate material, the volume of air pocket is the 20%-70% of described fiber aggregate material nature lower volume, the thickness of described fiber aggregate material is greater than 0.5cm, and density is greater than 20kg/M
3, light transmittance is less than 20%.
2. above-mentioned microfiber wraps up the production technology of the fiber aggregate material of tiny air pocket formation, it is characterized in that: may further comprise the steps:
1. the polyalkenes polymeric particles is melted after extruder is clamp-oned melt metering pump, in melt metering pump is delivered to spray silk die orifice, the ejection microfiber;
2. below spray silk die orifice, be provided with air pocket and form cavity, form a side of cavity at air pocket, to send into continuously in the cavity through the crude fibre of screening by blower fan, send into the microfiber parcel of the molten state that the crude fibre in the cavity constantly sprays by top, form air pocket;
3. with the air pocket that forms after entering the expansion of air pocket expansion casing under the thrust of blast, form fiber aggregate material fluffy, the little air pocket of interior detail;
4. be provided with the lace curtaining receiving system of continuous running below air pocket expansion casing, the below of lace curtaining is provided with negative suction system, and the fiber aggregate material that forms is adsorbed on the lace curtaining, is delivered to the wrap-up rolling and can obtains described fiber aggregate material.
3. wrap up the production technology of the fiber aggregate material of tiny air pocket formation according to the described microfiber of claim 2, it is characterized in that: the both sides of described spray silk die orifice are provided with the high-speed and high-temperature airflow device.
4. wrap up the production technology of the fiber aggregate material of tiny air pocket formation according to the described microfiber of claim 2, it is characterized in that: described spray silk die orifice is the strip shape del, the lateral length of spray silk die orifice is greater than 40cm, described spray silk die orifice is shown the spinneret orifice that several diameters are 0.2-0.35mm in the horizontal direction linear rows, and the distance between described spinneret orifice is 0.2-2mm.
5. wrap up the production technology of the fiber aggregate material of tiny air pocket formation according to the described microfiber of claim 2, it is characterized in that: microfiber and crude fibre form homobium at the air pocket expansion casing that enters under the thrust of blast below the cavity, described air pocket expansion casing according to " Alpha " principle designs, described air pocket enters young, the fiber aggregate material outlet is big, and inside is provided with a wikipedia type passage.
6. wrap up the production technology of the fiber aggregate material of tiny air pocket formation according to the described microfiber of claim 2, it is characterized in that: the average diameter of described microfiber is less than 6 μ m, and described coarse-fibred average diameter is 10-40 μ m, and length is 2-8cm.
7. wrap up the production technology of the fiber aggregate material of tiny air pocket formation according to the described microfiber of claim 6, it is characterized in that: the average diameter of described microfiber is less than 4 μ m, and described coarse-fibred average diameter is 20-30 μ m, and length is 4-6cm.
8. wrap up the production technology of the fiber aggregate material of tiny air pocket formation according to the described microfiber of claim 7, it is characterized in that: the average diameter of described microfiber is less than 2 μ m.
9. wrap up the production technology of the fiber aggregate material of tiny air pocket formation according to the described microfiber of claim 2, it is characterized in that: described lace curtaining receiving system is 20-70cm with the distance of expansion casing outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010213416.3A CN101892527B (en) | 2010-06-30 | 2010-06-30 | Fiber aggregate material formed by coating fine air pockets by microfibers and production process thereof |
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| CN201010213416.3A CN101892527B (en) | 2010-06-30 | 2010-06-30 | Fiber aggregate material formed by coating fine air pockets by microfibers and production process thereof |
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| CN101892527A true CN101892527A (en) | 2010-11-24 |
| CN101892527B CN101892527B (en) | 2015-05-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073897A (en) * | 2014-07-04 | 2014-10-01 | 南通丽洋新材料开发有限公司 | Throat-tube type cold-wind-drafted and melt micro-fibre spinning device |
| CN104088085A (en) * | 2014-07-04 | 2014-10-08 | 南通丽洋新材料开发有限公司 | Bionic down warm-keeping material and preparation method thereof |
| CN110144675A (en) * | 2019-06-06 | 2019-08-20 | 江苏丽洋新材料股份有限公司 | A kind of process units of staple fibre symbiosis hot melt hybrid composite |
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| US20080315454A1 (en) * | 2007-06-22 | 2008-12-25 | 3M Innovative Properties Company | Method of making meltblown fiber web with staple fibers |
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| CN1411520A (en) * | 1999-12-20 | 2003-04-16 | 纳幕尔杜邦公司 | Melt spun polyester nonwoven sheet |
| CN1705776A (en) * | 2002-10-18 | 2005-12-07 | 可隆株式会社 | A microcellular foamed fiber, and a process of preparing for the same |
| CN1882734A (en) * | 2003-11-17 | 2006-12-20 | 3M创新有限公司 | Nonwoven elastic fibrous webs and methods for making them |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073897A (en) * | 2014-07-04 | 2014-10-01 | 南通丽洋新材料开发有限公司 | Throat-tube type cold-wind-drafted and melt micro-fibre spinning device |
| CN104088085A (en) * | 2014-07-04 | 2014-10-08 | 南通丽洋新材料开发有限公司 | Bionic down warm-keeping material and preparation method thereof |
| CN104088085B (en) * | 2014-07-04 | 2017-02-01 | 江苏丽洋新材料股份有限公司 | Preparation method of bionic down warm-keeping material |
| CN110144675A (en) * | 2019-06-06 | 2019-08-20 | 江苏丽洋新材料股份有限公司 | A kind of process units of staple fibre symbiosis hot melt hybrid composite |
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| CN101892527B (en) | 2015-05-13 |
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