CN1473217A - Hydroentangled nonwoven web containing recycled synthetic fibrous materials - Google Patents
Hydroentangled nonwoven web containing recycled synthetic fibrous materials Download PDFInfo
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- CN1473217A CN1473217A CNA018186246A CN01818624A CN1473217A CN 1473217 A CN1473217 A CN 1473217A CN A018186246 A CNA018186246 A CN A018186246A CN 01818624 A CN01818624 A CN 01818624A CN 1473217 A CN1473217 A CN 1473217A
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- Prior art keywords
- hydroentangled
- line element
- fibrous material
- supatex fabric
- fibrous
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Images
Classifications
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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
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
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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
- D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
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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
- D04H1/407—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 absorbing substances, e.g. activated carbon
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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
- D04H1/425—Cellulose series
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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
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
- D04H5/03—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/603—Including strand or fiber material precoated with other than free metal or alloy
- Y10T442/607—Strand or fiber material is synthetic polymer
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/659—Including an additional nonwoven fabric
- Y10T442/666—Mechanically interengaged by needling or impingement of fluid [e.g., gas or liquid stream, etc.]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/689—Hydroentangled nonwoven fabric
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
A hydraulically entangled nonwoven fabric that includes recycled synthetic fibers and fiber-like materials having at least one thread element composed of synthetic material with at least one irregular distortion generated by hydraulic fracture of the thread element to separate it from a bonded fibrous material while the bonded fibrous material is suspended in a liquid. This material may be used as a wiper or an absorbent material. A method of forming the material includes the steps of: (a) providing a layer of recycled synthetic fibers and fiber-like materials having at least one thread element composed of synthetic material containing at least one irregular distortion generated by hydraulic fracture of the thread element to separate it from a bonded fibrous material while the bonded fibrous material is suspended in a liquid; (b) hydraulically entangling the layer to form a nonwoven web; and (c) drying the web.
Description
Technical field
The present invention relates to contain the Hydroentangled supatex fabric of reclaimed fibre, and the manufacture method of non-woven compound fabric.
Background technology
Although known pulp fibers non-weaving cloth has absorbability,, for some application examples such as heavy load cleaning piece, by the non-weaving cloth of pulp fibers manufacturing, because its intensity and ABRASION RESISTANCE deficiency, possibility is not ideal enough fully.
With the fiber combinations of pulp fibers and staple length and carry out Hydroentangled.Yet adding short fiber has increased expense.In addition, the suspended matter that contains short fiber more is difficult to conventional papermaking or the processing of wet-laying technology.The technology of known these materials of combination is Hydroentangled methods.For example, authorizing the mixture and the continuous filament yarn base net that disclose by wood pulp and textile fabric in the United States Patent (USP) 4808467 of Suskind tangles and the high strength supatex fabric of manufacturing.
The laminated product of pulp fibers and weaving and/or non-woven cloth is disclosed in the Canadian Patent 841398 of authorizing Shambelan.According to this patent, can use the high-pressure injection current with untreated ply of paper and base net, for example, the continuous filament yarn base net tangles.
Propose, can be with fragment for example fibre bundle, line and/or the individual fibers of the fiber web mechanical breaking Cheng Gengxiao of adhesion, these fragments are by Hydroentangled one-tenth net then.Usually drying material machinery is torn also shredding and finish this processing.
For example, International Application PCT/SE95/00938 claims that non-woven and textile waste is done in the known mechanical shredding, and can use the dry mixing waste that contains synthetic and natural fabric.According to PCT/SE95/00938, a shredding and a key character that tears up technology be, tear up or the shredding operation usually incomplete so that reclaimed fibre partly occurs with the discrete fritter form of original fabric, its feature can be " flocculus " or fibre bundle.These wadding quilts are described as, and the heterogeneity that it brought makes the net that contains these flocculus present the appearance characteristics of more textile-like.
Above-mentioned flocculus and fabric fragment are difficult to processing in operation subsequently, these operations are to wet into net processing, the processing of pneumatolytic net, Hydroentangled processing or other one-tenth net processing for instance.The existence of these non-homogeneous things can reduce the value of reclaimed fibre, and reduces appearance ratings, intensity, uniformity and other performance rate that needs of net that reclaimed fibre becomes or fabric.Adopt screening or other technology to eliminate the reuse efficient that non-homogeneous thing can reduce fiber.Adopt additional dry type mechanical cutting, shredding, tear, fibre bundle or flocculus are shortened to length may be unpractical less than fiber or the fibrous material of 5mm for garnetting or picking.And additional mechanical power can be converted into so many energy hot form, causes drying material to be melt into disabled agglomerate, and can reduce or eliminate any environment that this material of reuse embodies at first or advantage economically.
Summary of the invention
The present invention is devoted to satisfy needs discussed above, a kind of Hydroentangled supatex fabric is provided, it comprises the recycled synthetic fibrous and fibrous material with at least a line element, this line element is made up of synthetic material, and has an at least a irregular deformation that is produced by the line element hydraulic fracture, this hydraulic fracture is for when the adhesion fibrous material is suspended in the liquid, separates this line element from this adhesion fibrous material.
Described line element can have about 1 millimeter length range to about 15 millimeters scopes.For example, line element can have the about 10 millimeters length of about 1.5-.In another example, this line element can have the about 5 millimeters length of about 2-.The diameter of line element is less than 100 microns.For example, line element can have less than about 30 microns diameter, and in a preferred embodiment, it can have about 10 microns and arrive about 20 microns fibre diameter.
According to one aspect of the present invention, irregular deformation can be following form, the flat fragment of the bending in the line element, line element, the expansion fragment of line element and their combination.In addition, utilize recirculation, in entanglement process, crooked and/or twistedly provide more effective interlocking for fiber web.
Generally speaking, compare with the line element in the adhesion fibrous material before the line element hydraulic fracture that carries out for defiber element from the fibrous material of adhesion, irregular deformation makes the line element of recycled material have bigger surface area.For example, its surface area of the line element of reuse is big at least about 5%.
In embodiments of the invention, the synthetic fiber of reuse and fibrous material can be the synthetic materials that is selected from polyester, polyamide, polyolefin, glass fibre and combination thereof.In embodiments of the invention, the synthetic fiber of reuse and fibrous material can be the synthetic thermoplastic materials.For example, this synthetic thermoplastic material can be a kind of polyolefin, for example polypropylene, polyethylene and composition thereof.This synthetic thermoplastic material can be forms such as multicomponent fibre, long filament, strand, and can comprise fiber and/or the long filament with varying cross-section shape, salient angle or other configuration.
Hydroentangled supatex fabric can further comprise the normal synthetic material of the natural fiber material of non-reuse, non-reuse, natural fiber material, microparticle material and the combination thereof of reuse.For example, Hydroentangled supatex fabric can further comprise pulp fibers.In one embodiment of the invention, Hydroentangled supatex fabric can contain the recycled synthetic fibrous and fibrous material of the about 85 weight % of about 1-and the pulp of the about 99 weight % of about 15-.
This pulp fibers can be woody and/or non-woody plant fiber pulp.This pulp can be the mixture of dissimilar and/or different quality pulp fibers.
The present invention also attempts with this Hydroentangled supatex fabric of material processed such as a spot of for example adhesive, surfactant, crosslinking agent, remover, fire retardant, hydrating agents, pigment and/or dyestuffs.Alternatively and/or additionally, the present invention attempts to add for example particle of active carbon, clay, starch and superabsorbents to this supatex fabric.In one embodiment, Hydroentangled supatex fabric can further comprise the remover up to about 3%.
This Hydroentangled supatex fabric can be used as the heavy load cleaning piece.In one embodiment, this supatex fabric can be the single or multiple lift cleaning piece, has about 20 basic weights to about 200 grams every square metre (gsm).For example, this cleaning piece can have the basic weight of about 150gsm of about 25-or the about 110gsm of more specifically about 30-.This cleaning piece advantageously has water capacity greater than about 450%, the oil capacity greater than about 250%, greater than about 2.0cm/15 water wicking rate (vertically) of second, and inhale speed (vertically) greater than the wick of about 0.5cm/15 second.
The present invention also comprises a kind of manufacture method of Hydroentangled supatex fabric, the method comprising the steps of: the layer that the recycled synthetic fibrous and fibrous material with at least a line element (a) is provided, this line element is made up of synthetic material, and has an at least a irregular deformation that is produced by the line element hydraulic fracture, this hydraulic fracture is for when the adhesion fibrous material is suspended in the liquid, separates this line element from this adhesion fibrous material; (b) Hydroentangled this layer is to form nonwoven web; (c) dry this net.
According to the present invention, provide the step of recycled synthetic fibrous and fibrous material layer to comprise, on Hydroentangled fabric, be shaped or wet net-forming technology deposition one deck reclaimed fibre layer by doing.
In one embodiment of the invention, provide the step of recycled synthetic fibrous and fibrous material layer to comprise, the layer of on Hydroentangled fabric, forming by wet formed deposition techniques one deck reclaimed fibre and pulp fibers.
The Hydroentangled technology of available routine realizes Hydroentangled.
Can adopt dry this Hydroentangled non-woven compound fabric of non-compression drying technology.Have been found that air penetration drying process particularly suitable.Also can adopt other drying process that comprises infrared radiation, Yang Keshi drying cylinder (yankee dryer), steam generator, vacuum hydroextractor, microwave and ultrasonic energy.
Definition
Use in the present invention then, term " vertically " is meant, the direct of travel of profiled surface, described profiled surface promptly, during forming nonwoven web, the fiber laydown part.
Use in the present invention then, term " laterally " is meant perpendicular to above-mentioned direction longitudinally.
Use in the present invention then, term " pulp " is meant, the fiber of natural origin, for example woody and nonwood plant.Xylophyta comprises: for example deciduous tree and coniferous tree.Nonwood plant comprises: for example cotton, flax, alfa, Asclepias, straw, jute, hemp and bagasse.
Use in the present invention then, term " average fiber length " is meant, the average length of fiber, fibre bundle and/or fibrous material through adopting the micrometering technical measurement.Select a sample of fiber from the suspension of fiber, to separate at random with at least 20.Preparation is used for the microscopical slide of fiber suspension at water is contained in this fiber on the slide.The coloring dyestuff is added on the fiber of suspension, makes the fibre staining of cellulose, and they can or separate with the synthetic fiber difference like this.This slide is placed S19642/S19643 series Fisher Stereomaster II microscopically.With 20 times linear magnification, use 0-20 mil scale is measured 20 fibers in this sample, and calculates its average length, minimum and maximum length and the deviation or the coefficient of variation.In some cases, average fiber length will be by fiber (for example, fiber, fibre bundle, fibrous material) weighted average length calculate, it is measured by for example, the equipment of Kajaani fibre analysis instrument FS-200 type is finished, and this equipment can obtain from the Kajaani Oy Electronics of Finland Kajaani.According to Standard test programme, handle sample with maceration extract, wherein there are not fibre bundle and fibre debris so that guarantee.Each sample is dissociated to the suspension that also dilutes in the hot water into about 0.001%.When using the test of standard K ajaani fibre analysis test program, get part of about 50-100ml as each single specimen from this diluted suspension.Weight averaged fiber length can be length a kind of arithmetic average, that length is average weighted or weight is average, and available following formula is expressed:
k
(x
i*n
i)/n
x
i=0 wherein, the maximum fibre length of k=
x
i=fibre length
n
i=length is x
iNumber of fiber
The sum of the fiber that n=has measured.
A feature of the average fiber length data that record with Kajaani fibre analysis instrument is: it is as broad as long between dissimilar fibers.Therefore, average length representative based in the sample the mean value of length of the different types of fiber that might exist.
Use in the present invention then, term " spun-bonded continuous yarn " is meant the continuous filament yarn of minor diameter, its by with molten thermoplastic by many tiny, usually rounded, have the spinneret capillary of extruding filament diameter and be extruded as long filament, then, by for example drawing or mechanical commutation draft and/or other known spunbond mechanism, it is attenuated fast.For example, authorize people's such as Appel United States Patent (USP) 4340563 and authorize people such as Dorschner United States Patent (USP) 3692618 illustrated the production of spunbond nonwoven web-webs.The disclosed content of these patents is incorporated the present invention into through quoting.
Use in the present invention then, term " meltblown fibers " is meant, through many punch die capillaries tiny, common circle molten thermoplastic (for example is expressed into high-speed gas with molten thread or long filament, air) in the stream and the fiber that forms, this air-flow attenuates the long filament of molten thermoplastic, thereby dwindle their diameter, this diameter can be the diameter of microfiber class.After this, carry these meltblown fibers, and they are deposited on the collection surface, form the net of the fused fiber of random distribution with high velocity air.Disclose this technology in the United States Patent (USP) 3849241 of for example authorizing Butin, the content disclosed in this patent is incorporated the present invention into through quoting.
Use in the present invention then, term " microfiber " is meant that average diameter is not more than about 100 microns small diameter fibers; For example diameter is about 0.5 micron-Yue 50 microns, more preferably microfiber can have about 1 micron to about 40 microns average diameter.
When using in the present invention, term " thermoplastic " is meant a kind of polymer, can soften when it is heated, and when cool to room temperature, it gets back to not softening state usually.The natural materials that presents this behavior is natural rubber and a lot of paraffin.Other exemplary hot plastic material non-exclusively comprises: the copolymer of polyvinyl chloride, some polyester, polyamide, polyfluohydrocarbon, polyolefin, some polyurethane, polystyrene, polyvinyl alcohol, caprolactam, ethene and at least a vinyl monomer (for example, poly-(ethylene vinyl acetate)), copolymer (for example, ethylene n-butyl acrylate), PLA, thermoplastic elastomer (TPE) and the acrylic resin of ethene and n-butyl acrylate.
When using in the present invention, term " non-thermoplastic material " is meant any material that does not fall into above-mentioned " thermoplastic " definition.
Description of drawings
Fig. 1 is the microphoto of the exemplary recycled synthetic fibrous details of the used type of the exemplary Hydroentangled nonwoven web of formation.
Fig. 2 is the microphoto of exemplary new synthetic staple details.
Fig. 3 is the microphoto of the exemplary recycled synthetic fibrous details of the used type of the exemplary Hydroentangled nonwoven web of formation.
Fig. 4 is the microphoto of the exemplary recycled synthetic fibrous details of the used type of the exemplary Hydroentangled nonwoven web of formation.
Fig. 5 is the microphoto of the exemplary recycled synthetic fibrous details of the used type of the exemplary Hydroentangled nonwoven web of formation.
Fig. 6 is the microphoto of the exemplary recycled synthetic fibrous details of the used type of the exemplary Hydroentangled nonwoven web of formation.
Fig. 7 is the microphoto of exemplary new synthetic staple details.
Fig. 8 is the microphoto of many exemplary recycled synthetic fibrous details of the used type of the exemplary Hydroentangled nonwoven web of formation.
Fig. 9 is the microphoto of the exemplary recycled synthetic fibrous details of the exemplary Hydroentangled nonwoven web available types of formation.
Figure 10 is for showing the microphoto of the exemplary recycled synthetic fibrous details that forms exemplary Hydroentangled nonwoven web available types.
Figure 11 is for showing the microphoto of the exemplary recycled synthetic fibrous details that forms exemplary Hydroentangled nonwoven web available types.
Figure 12 is for showing the microphoto of the exemplary recycled synthetic fibrous details that forms exemplary Hydroentangled nonwoven web available types.
The specific embodiment
The present invention includes Hydroentangled supatex fabric recycled synthetic fibrous and that fibrous material forms.These synthetic fiber and fibrous material reclaim the fibrous material from adhesion, and this material is converted into actual filament and independent fibrous material.Importantly, the fibrous material of these adhesions is the materials that comprise synthetic fiber, and can be, for example, and the fibrous material of the adhesion of Woven fabric, knitted fabric, nonwoven web and combination thereof and so on.As further example, these reclaimed fibres can from hot sticky, that adhesive is bonding, mechanical interlocking, solvent is adhesion, nonwoven webs Hydroentangled and/or these technical combinations, and can comprise composite fibre materials, natural fiber material and their combination.Composite fibre materials can comprise thermoplastic fibre and long filament.
Can to be back to Hydroentangled synthetic fiber in order reclaiming, the fiber web of adhering is cut off or discerp into the fritter that size is suitable for suspending in liquid.Then, these fritters are floated on a liquid, and the liquid suspension of discrete fritter is applied mechanical power, be enough to the fibrous material hydraulic fracture of adhesion is become the water pressure and the mechanical shearing stress condition of fiber and fibrous component with generation.At last, from this liquid, isolate single basically fiber and fibrous component.
The fibrous material of this adhesion can be by routine work, and for example, mechanical shredding, mechanical cutting, mechanical tear, mechanical lapping, pulverizing, water spray cutting, laser cutting, garnetting and combination thereof, are transformed into discrete fritter.
Importantly, the suspension of these fritters be exposed to be enough to will the adhesion the little block splitting of fibrous material, break, explosion or be dissociated into available wandering fibre and conditions such as the hydraulic pressure of fibre bundle or fibrous material, shear stress and/or air pocket erosion power under.Be used for these conditions that these processing conditions that material transition with shredding becomes reclaimed fibre find than conventional making beating operations more effectively and stricter.
As an example, conventional making beating operation is general to be used approximately less than 3 horsepowers-day (24 hours)/dry ton material.Embodiment of the present invention can be imported with much higher energy.According to the present invention, the estimator that is applied to the mechanical power on the suspension can be greater than about 3 horsepowers-day (24 hours)/dry ton adhesion fibrous material-this is by to impelling the material component motion can determine with the mensuration of the motor institute consumed current that produces hydraulic pressure and shear stress condition.This numerical value can be greater than 4 horsepowers-day/tons, and even can be greater than 6 or higher.For example, available many 35% energy; Many 50% percentages or even more energy implement method of the present invention so that from the adhesion fibrous material isolate useful wandering fibre and fibre bundle.In some situation or under certain conditions, the estimator of expecting mechanical power can be less than 3 horsepowers-day/dry ton adhesion fibrous material.
Though the inventor should not be subjected to the constraint of particular theory of operation, it is believed that it is the synergy of the gentle cavitation pitting power of hydraulic pressure, shear stress, material is cracked into wandering fibre and fibre bundle.But also think, by changing pressure and mechanical stress, can control the average-size of the content and the fibre bundle of wandering fibre.It is generally acknowledged, use high-caliber mechanicals efforts like this or merit and do not cause the adhesion fibrous material synthetic component remarkable degraded (for example, synthetic thermoplastic material's fusing does not take place) be possible because the water/liquid-absorbent in the processing heat that from the adhesion fibrous material, is produced when separated free fiber and fibrous material.
Generally speaking, conventional making beating and/or purification apparatus can be used for the fibres modified cellulose fiber, to develop Papermaking Performance such as its hydrability and fibrillation performance.According to the present invention, can dispose or operating routine beater and/or refiner according to a kind of unconventional mode, so that providing, it is enough to this fragmentation of adhesion fibrous material and hydraulic pressure that fractures into wandering fibre, fibre bundle and fibrous material and shear stress condition.The beating apparatus of example can derive from for example Beloit Jones, E.D.Jones, Valley and Noble ﹠amp; Manufacturers such as Wood.
The suspension of adhesion fibrous material fritter is imported in this beating apparatus.Alternatively and/or additionally, adhesion fibrous material fritter directly can be imported in the cylinder of beater in the liquid.Can use the various ratios of adhesion fibrous material and water, and those skilled in the art can determine suitable ratio.
In operation process, cylinder or beater roll(er) be with the rotation of enough speed, make blade on the roller or blade be contained in enough hydraulic pressure and the shear stresses of generation between the blade that separates on this roller below fixed head.
Can also regulate rotary speed, the denseness of suspension in the cylinder, and the gap of rotating blade or blade and fixed blade, make it reach the interactional condition of enhancing " metal pair fiber ", the length that this interacts and cuts off or control wandering fibre, fibre bundle and fibrous particle.Term " metal pair fiber " is used to describe contacting between adhesion fibrous material and fixing and/or the rotation of blade, and it can be enough to cut-out, cut or disconnect under the long stapled condition and takes place at hydraulic pressure and mechanical shearing stress.According to the present invention, should control this and interact, so that it is in not appreciable impact or reduce pulp or the length of staple fibre and/or the prerequisite incision cutting filament of beating degree that can be present in the suspension.
Although but operating equipment provides fiber, fibre bundle and the fibrous material with a broad length range, but producing, also available this equipment has fiber and the fibrous material that a kind of average length distributes, about 7 millimeters or littler of this average length changes in distribution scope.Usually, more the uniform fibers distribution is tending towards strengthening processing and Hydroentangled effect.Yet, foreseeablely be to mix more long fiber with more staple fibre may be more favourable.Longer fiber can help improving intensity, and shorter fiber can help providing other useful properties, for example, and absorbability, feel, drapability and/or bulkiness.
Except control length, some " metal pair fibers " interact and can make synthetic component generation distortion and distortion in the adhesion fibrous material.Can be by adhesion some distortion of cracked generation of fibrous material waterpower and distortion, and other distortion and distortion can tearing, cutting into slices and rupture generation by fiber and/or long filament.It is believed that that the distortion of these fibers and scrambling help to net is wet formed (or do be shaped) and subsequently Hydroentangled.These characteristics of reclaimed fibre and fibrous material have strengthened their practicality in Hydroentangled processing, and make it be used to make Hydroentangled fabric feasiblely, this fabric can present the same or similar physical property made from 100% new fiber of fabric, and may surmount the latter at these aspect of performances.
Recycled synthetic fibrous discussion is helped to understand Hydroentangled fabric by these fibrous structures.With reference now to accompanying drawing 1,3-6 and 8-12,, these figure have shown different exemplary recycled synthetic fibrous, fibre bundle and/or fibrous materials with at least a line element, comprise recycled synthetic fibrous and fibrous material with at least a line element, this line element is made up of synthetic material, and has an at least a irregular deformation that is produced by the line element hydraulic fracture, this hydraulic fracture is for when the adhesion fibrous material is suspended in the liquid, separates this line element from this adhesion fibrous material.
This line element is not continuous, and in an example, this line element can have about 1 millimeter-Yue 15 millimeters length.For example, this line element can have the about 10 millimeters length of about 1.5-.In another example, line element can have the about 5 millimeters length of about 2-.The diameter of line element can be less than 100 microns.For example, the diameter of line element is less than 30 microns.In general, these sizes are similar to some situation of change of commodity pulp, and can mix with the commodity pulp easily.In certain embodiments, these line elements can have the diameter less than 10 microns, and even can be less than 1 micron.
The form of irregular deformation can be the flat fragment of the bending in the line element, line element, the expansion fragment of line element and the combination of these forms.
Generally speaking, compare with the line element that hydraulic fracture makes line element separate the fibrous material of adhering before from the adhesion fibrous material, irregular deformation makes the line element of recycled material have bigger surface area.For example, the surface area of reuse line element can exceed about 5% at least.The surface area increase usually can be the result of residual fiber adhesion area, crosspoint, flat area, torsion of fibers etc.
Fig. 1 is for showing the microphoto (about 500X linear magnification) of exemplary recycled synthetic fibrous details.Reclaimed fibre reclaims from composite construction, and this composite construction comprises the thermal bond points of the Hydroentangled pulp fibers of continuous polypropylene filament net and this continuous filament yarn net.Photo central authorities visible fiber is spunbond polypropylene line element, and this line element has bending and more flat fragment in long filament.At least a portion in these distortion, for example flat section be because of with the coherent continuous polypropylene fiber net of cellulose pulp (that is composite construction) in line element hydraulic fracture and produce or expose.The material that surrounds this line element is a cellulose pulp.
Fig. 2 is a microphoto (about 500X linear magnification), shows the conventional polypropene staple in the carded fiber web frame of routine adhesion.Form contrast with the line element of Fig. 1, it is less relatively that the irregular deformation in these fibers seems.These fiber surfaces are more smooth, and diameter than homogeneous or evenly and lacks obviously exist in the line element shown in Figure 1 twisted, crooked, twists together and other irregular deformation.
Fig. 3 is a microphoto (about 120X linear magnification) that shows exemplary recycled synthetic fibrous details, this recycled synthetic fibrous recovery oneself with the composite construction of line element same type shown in Figure 1.The visible fiber that crosses the photo central area is the polypropylene line element, and it presents coil and crooked and more flat fragment.At least a portion in these distortion is to produce or expose because of the hydraulic fracture of the line element of adhesion fibrous material (that is composite construction).The material that surrounds this line element is a cellulose pulp.
Fig. 4 is a microphoto (about 120X linear magnification) that shows exemplary recycled synthetic fibrous details, this recycled synthetic fibrous recovery oneself with the composite construction of line element same type shown in Figure 1.Photo central authorities visible fiber is the polypropylene line element.Sharp turn in the arrow points line element in the photo.
Fig. 5 is a microphoto (about 500X linear magnification) that shows exemplary recycled synthetic fibrous details, this recycled synthetic fibrous recovery oneself with the composite construction of line element same type shown in Figure 1.Photo central authorities visible fiber is the polypropylene line element, and it presents crooked and/or twisted and shaggy fragment.
Fig. 6 is a microphoto (about 500X linear magnification) that shows exemplary recycled synthetic fibrous details, this recycled synthetic fibrous recovery oneself with the composite construction of line element same type shown in Figure 1.The visible fiber that crosses photo central authorities is the polypropylene line element, has shown the flat and crop of the fiber that expands.
Fig. 7 is a microphoto (about 500X linear magnification) that shows conventional polypropene staple details, form contrast with the line element of Fig. 6, it is less relatively that irregular deformation in this fiber seems, and has a termination, described termination look cut clarity, do not stay and expand or the vestige of other distortion.
Fig. 8 is a microphoto (about 250X linear magnification) that shows two exemplary recycled synthetic fibrous details, these recycled synthetic fibrous recovery oneself with the composite construction of line element same type shown in Figure 1.Crossing near the visible fiber in microphoto central authorities and photo bottom is the polypropylene line element, and it presents the fragment of crooked and roughening.
Fig. 9 is a microphoto (about 500X linear magnification) that shows exemplary recycled synthetic fibrous details.Reclaimed fibre reclaims from Kimtex
The board cleansing tissue, it contains the thermal point bond net of polypropylene melt-blown fiber.The thinner meltblown fibers that sees photo central authorities is the polypropylene line element, its have bending, twisted, tangle and more flat fragment.At least a portion of these distortion, its generation or appear be since line element from the adhesion fibrous material (be Kimtex
Cleansing tissue) hydraulic fracture.The material that surrounds this line element is a cellulose pulp.
Figure 10 is a microphoto (about 100X linear magnification) that shows exemplary recycled synthetic fibrous details, this recycled synthetic fibrous recovery oneself with the material of line element same type shown in Figure 9.Can see that in photo central authorities length is about 500 microns sticky point.Each fiber outwards is radial from the edge of sticky point, its form be the polypropylene line element have bending, twisted, tangle and more flat fragment.At least a portion of these distortion, its generation or appear be since line element from the adhesion fibrous material hydraulic fracture.Some materials in the line element background are cellulose pulps.
Figure 11 is a microphoto (about 500X linear magnification) that shows exemplary recycled synthetic fibrous details, this recycled synthetic fibrous recovery oneself with the material of line element same type shown in Figure 10.At visible about 40 microns wide thicker fibrous material or the fibre bundle of photo central authorities.Surround fibrous material or fibre bundle and also be the radial fiber that leaves, its form be have bending, twisted, tangle and the polypropylene line element of more flat fragment.At least a portion of these distortion, its generation or appear be since line element from the adhesion fibrous material hydraulic fracture.Near the line element thicker fibrous material is a cellulosic pulp fibers.
Figure 12 is a microphoto (about 500X linear magnification) that shows exemplary recycled synthetic fibrous details, this recycled synthetic fibrous recovery oneself with the material of line element same type shown in Figure 10.The mixture of having represented cellulose pulp and reclaimed fibre among the figure, the form of this reclaimed fibre be have bending, twisted, tangle and the polypropylene line element of more flat fragment.
Can make the Hydroentangled net of reclaimed fibre and fibrous material by conventional Hydroentangled technology.For example, can supply the diluted suspension of reclaimed fibre and fibrous material, and this suspension be deposited on the forming fabric of conventional paper machine through the dispersing mode of water valve with homogeneous by high-order flow box before the net.
The suspension of fiber can be diluted to general any denseness of using in the conventional papermaking processing.For example this suspension can contain the about 1.5 weight % of about 0.01-and is suspended in fiber in the water.From the suspension of this fiber, remove and anhydrate, so that form the layer of homogeneous.The fiber of these reuses can also comprise fiber, particulate or other material of additional pulp fibers and/or other type.Expectation can make these reclaimed fibres and these different fibers and/or other material form stacked or heterogeneous sheet material or layer.Alternatively and/or additionally, but thereby blending or mix the layer that these components form homogeneous.
If in these fibers cellulosic component is arranged, then can add a spot of wet strengthening resin and/or resin binder, so that improve intensity and ABRASION RESISTANCE.Useful adhesive and wet strengthening resin comprise, for example, derive from Kymene 557 H of Hercules chemical company and derive from AmericanCyanamid, the Parez 631 of Inc..In some cases, might in these fibers, add crosslinking agent and/or hydrating agents.Also may add remover.A kind of exemplary remover derives from Pennsylvania Quaker Chemical Company, Conshohocken, and registration mark is Quaker2008.
Then fibrage is placed on the foraminate water thorn surface of conventional Hydroentangled machine.The layer of reclaimed fibre and fibrous material (and the pulp of any interpolation, fiber and/or other material) is by one or more Hydroentangled concetrated pipes below, and the fluid treatment that goes out with nozzle ejection, so that reclaimed fibre and fibrous material are tangled each other.
Expect when fibrage is on the identical porous screen cloth (being mesh fabric) that carries out wet-laying, can take place fibrolaminar Hydroentangled.
It is Hydroentangled to adopt conventional Hydroentangled equipment to finish, and for example can find this equipment in the United States Patent (USP) 3485706 of authorizing Evans, and the content of this patent is incorporated the present invention into through quoting.Can with any suitable working fluid for example water finish of the present invention Hydroentangled.The working fluid concetrated pipe of flowing through, this pipe is assigned to fluid in a series of independent holes or the nozzle equably.These holes or nozzle diameter can be about 0.003-0.015 inch.For example, the concetrated pipe that can adopt Maine State HoneycombSystems Incorporated of Biddeford to produce is implemented the present invention, and this concetrated pipe includes the band of 0.007 inch nozzle of diameter, per inch 30 holes, and 1 round is arranged.Can use many other concetrated pipe configuration and combinations.For example, can use single concetrated pipe, perhaps can continue and arrange several concetrated pipes.
In hydroentanglement process, working fluid passes through these nozzles under about 2000 pounds of/square inch (meter pressure) pressure (psig) of about 200-.When about 2000psig, expectation might be processed these composite fabrics with the speed of about 1000 feet per minute clocks (fpm).Fluid impact is by the fibrage of mesh surface support, and this mesh surface can be for example monoplane screen cloth, and it has the size of mesh of about 40 * 40-about 100 * 100.The mesh surface can also be the multilayer screen cloth with about 200 * 200 size of meshes of about 50 * 50-.In many water spray treatment process, be typically very much, can water sting concetrated pipe under, perhaps arrange vacuum slot, so that it removes unnecessary water from Hydroentangled material in the mesh entanglement lower face in entanglement concetrated pipe downstream.
Though the inventor should not be subjected to the constraint of particular theory of operation, but it is believed that, directly the bump working fluid that is placed on the cylindric injection of the lip-deep relative deformation of tangling, twisted and high surface reclaimed fibre played make these fibers mutually (and with other fiber that may exist, for example, the effect of tangling and twining pulp fibers).
Generally speaking, it is believed that the various scramblings of Central Line's element and the line element of any bifurcated or fibrillation etc. help reclaimed fibre to form the entanglement matrix of adhesion.When reclaimed fibre mixes with pulp fibers, it is believed that this matrix helps fastening pulp fibers.
Fluid jet can be transported to Hydroentangled fabric in non-pressurized drying process after handling.An available differential take up roll is with from the water thorn and is carried material to non-pressurized drying process.Alternatively, can use conventional vacuum type take up roll and conveying cloth.If desired, before being transported to drying process, gaufferization can wet the fabric that tangles.Can adopt the revolution of conventional blowing air to rouse the drying of not pressurizeing that impingement drying equipment is finished fabric.Ventilative drying machine forces the temperature by the air of Hydroentangled fabric can be at about 200-about 500 °F.Other useful impingement drying method and apparatus can for example find in the United States Patent (USP) 2666369 and 3821068, and the content of these patents is incorporated the present invention into through quoting.
Prove effective especially although have been found that ventilative drying process, also can use other drying process, these technologies comprise infrared radiation, Yang Keshi drying cylinder, steam generator, vacuum dehydration, microwave and ultrasonic energy.
May need to use arrangement step and/or post processing processing, so that give composite fabric selected performance.For example, can gently press moving this fabric of this fabric, gauffer or brush with calender roll, so that outward appearance and/or certain sense of touch performance of homogeneous are provided.Alternatively and/or additionally, can apply chemical after-treatment reason agent, for example adhesive or dyestuff to fabric.
In one aspect of the invention, fabric can contain various materials, for example, and active carbon, clay, starch and superabsorbent material.For example, these materials can be added in the suspension that is used to form fibrolaminar reclaimed fibre.Also can before fluid jet is handled, these materials be deposited on this fibrage, make that they can gradually be integrated in the Hydroentangled fabric by the effect of fluid jet.Alternatively and/or additionally, can after fluid jet is handled, these materials be added in the Hydroentangled fabric.
Method of testing
According to the trap tear strength of ASTM standard test method D 1117-14 measuring samples, different is, tears the mean value calculation of load according to initial load and top load, rather than according to mean value calculation minimum and the top load.
According to about industrial and test with the u.s. federal standard (FEDERALSPECIFICATION) of towel and paper napkin UU-T-595C number, the water of specimen and oily absorbability.Described absorbability is meant, material absorbs the ability of liquid through a period of time, and the total amount of liquid of drawing in its saturation point with material is relevant.Absorbability can be measured because of the weight that absorption liquid increases by measuring material sample.Absorbability can be expressed with following equation with the percentage form, promptly with the absorb weight of the weight of liquid divided by this sample:
Total absorptivity=[(saturated sample weight one sample weight)/example weight] * 100
Basically according to the basic weight of ASTM D-3776-9 working sample, change but existence is following: 1) sample size is at least 20 square inches of (130cm
2); And 2) each sample is minimum chooses three random samples and measures.
According to the rigidity of dangling of ASTM D1388 working sample, difference is that sample size is: 1 inch * 8 inches.
Basically use the bulking intensity (that is thickness) of Emveco 200-ATissue Caliper Tester measuring samples according to TAPPI 402 om-93 and T411 om-89.This tester is equipped with diameter 56.42mm, area 2500mm
2Bearing.Under 2.00kPa load and 3 second time of staying condition, 10 samples are built up one group measure.
Taber Abraser with the Teledyne Taber company that derives from Tuo Nawangda city, New York, 5130 type (swivel heads, the double end grinder) and E 140-15 sample clamp carry out abrasion test, carry out according to Method5306 federal test method standard (Federal Test MethodsStandard) 191A number and ASTM standard: D 3884 " textile fabric ABRASION RESISTANCE " usually.The sample size of test usefulness is about 5 inches * 5 inches.Under the condition of grinding nose heave about 250 grams, the sample experience is ground circulation.Each grinding head has loaded no elastic ceramic Calibrade emery wheel No.H-18, medium grain/medium combination.Each sample has been surveyed final vacuum cleaning grinding head, and is surveying each grinding head surface of rebuilding, each sample (general about 4 samples) back.Finish the resurfacing of grinding head with the skive resurfacer.Grinding and testing the period of being measured is period required when making sample form 1/2 inch through hole.
Embodiment
Present embodiment relates to reuse including natural fibers and synthetic thread, adhesion and composite that tangle, relate in the equipment stream of wet formed technology and introduce this material, and this material is deposited on the base material of non-woven continuous filament yarn, then these material water thorn mats.
To contain former wood pulp and synthesize the continuous net of polypropylene filament (about 20 weight %) (promptly with adhesion, spunbond continuous filament yarn net) Kimberley one a Clarke company that derives from Rosewell city, the Georgia State, trade mark is the particle made of WYPALL WORKHORSE and the fritter that the shredding of composite spunlaced entanglement material is long into about 10-350mm and 3-70mm is wide of HYDROKNIT fast Absorption material.This composite contains the pulp of about 80 weight % and the polypropylene filament of about 20 weight %.With this material of opener shredding that derives from East ChicagoMachine Tool Company.These fritters are transported in the conventional holland type industry beater, and this beater is by the Massachusetts E.D.Jones ﹠amp in Field city now; Sons makes.This beater is " No. 3 Jones beating equipments ", is equipped with the base plate at one 45 degree diagonal angle.The rotation roller of this beater has blade or the blade of common alignment on this roller.These blades or blade wide about 1/4 inch (～6mm), high about 1/2 inch (～12-13mm).They the roller external vertical separate in direction of rotation or Plane of rotation ground about 1/2 inch (～12-13mm).Be close to this rotation roller below a fixed pan be installed, and be equipped with blade or " scraper ", about 1/8 inch of these cuttves (～3mm) wide, about 1/4 inch (～6mm) height, separate about 3/8 inch (～9-10mm).They are with miter angle and direction of rotation or planar alignment.
The diameter of rotation roller is 72 inches, and width is 72 inches, and each length of 192 blades is 72 inches and separates 1/2nd inches.Heavily about 16 tons of this roller.Generally speaking, rotary speed is constant, and variable be pressure and the load that acts on the roller.This roller is installed is made that the gauge pressure reading is 0psi corresponding to very little or have not a particle of roller weight (～0 ton) and offsetting fiber and adhesion fibrous material piece in the power that they are squeezed, they are produced during by the gap, this gap is present between the blade at place, rotation roller bottom and the counteredge that installs this roller below.To be 50psi offsetting the pressure that fiber and adhesion fibrous material piece are produced corresponding to about 1/2nd roller weight (～8 tons) to the gauge pressure reading when they are squeezed by the gap, and this gap is present between the blade at place, rotation roller bottom and the counteredge that installs this roller below.To be 100psi offsetting the pressure that fiber and adhesion fibrous material piece are produced corresponding to whole approximately roller weight (～16 tons) to the gauge pressure reading when they are squeezed by the gap, and this gap is present between the blade at place, rotation roller bottom and the counteredge that installs this roller below.
To adding water, divide two stages to apply hydraulic pressure and shear stress to the material in the hollander through in the material of shredding.By regulating action load thereon when roller rotates, control hydraulic pressure and shear stress.In this concrete arrangement, produce this hydraulic pressure and shear stress by " paddle wheel " type pumping action, this pumping action produces when the beater roller rotates, and its subsidiary blade or blade forces liquid and wet stock to abut against fixed head, and described fixed head is equipped with tiltedly the blade facing to direction of rotation or Plane of rotation.Generally speaking, the load that is applied on the rotation roller is big more, and the gap that produces between this rotation roller and fixed head is more little.This is corresponding to higher levels of hydraulic pressure and shear stress.
During the phase I, act on rotation pressure of roller and load and be 0 pound/square inch (gauge pressure) (psig), and keep 10 fens clock times.Basically, load does not apply, and with the fritter in " paddle wheel " effect extruding suspension of rotation roller by about 1cm or bigger rotating the gap of being installed on roller blade and the fixed head between the blade.Generally speaking, the phase I is used for the material of wetting shredding and natural fabric and synthetic fiber is separated.Denseness is adjusted to about 3.3% (percetage by weight of air-dry or drying fibrous material in this suspension).
In second stage, adjust each condition so that rotation on the roller mobile blade and fixed blade between both near the contact point place or near, set up the zonule of very high water pressure, shear stress and possible air pocket erosion power.These zonules are considered to be used for to produce the micro-explosion effect on the adhesion fibrous material of shredding, so that hydraulic fracture and/or blow and hit separation, and reduce the length of gained synthetic fiber.In addition, the length of longer synthetic thread in the touch controls of hydraulic fracture and " metal pair fiber " or " metal pair adhesion fibrous material ".In the present embodiment, specific purpose is that the length of control synthetic fiber is so that this length obtains maximization, still produce simultaneously the sheet material of outward appearance and physical property homogeneous, and the length of the pulp fibers that may exist in the suspension or beating degree there be not substantive the reduction.
In second stage, the gauge pressure of rotation roller is increased to 50psig, and the gap between rotation roller blade and the fixed head blade is reduced between the 1-10mm, and in order to offset the pressure that fiber block is squeezed and produces during by this gap at them, can obtain the power of 1/2nd weight (～8 tons) of about 16 tons of rollers, this gap is between this roller and fixed head.These conditions were kept 50 minutes.
After the processing, with the sample of microscopic examination wandering fibre, fibre bundle and fibrous material.Natural or pulp fibers separates with synthetic fiber and detects separately.In this embodiment, measure average fiber length-hand by 20 synthetic fiber and 20 chance samples that pulp fibers is formed, measure the length of single fiber, calculate an average length value then with microscope according to previous description.The result of reclaimed fibre and fibrous material has following characteristic:
The average length of synthetic fiber approximately and the equal in length of wood pulp fibre.The average length of synthetic fiber is 4.21mm.The length of single fiber is in the scope of 2.54-7.11mm in this sample.Should be noted that first being processed, initial synthetic fiber are the continuous polypropylene filament that has uncertain length or at least far surpass 7.11mm length basically.Pulp component fibers average length is 2.7mm.The length of single pulp fibers is in the scope of 1.52-3.94mm in the sample.
The beating degree of wood pulp fibre shows slight reduction (about 10%), and this shows, has produced some extra surface areas on the wood pulp fibre component of this composite.Yet its fibre length is not affected.
Considerable synthetic fiber have enlarged surface area, and this is the result in the single fiber adhesion area of residue, territory, cross over point peace exhibition section.
The reclaimed fibre stream of handling (containing wood pulp fibre and synthetic fiber) is imported in the incoming flow of wet formed technology.With these reclaimed fibres and new radiata pine pulp fibers (Laja 10, can obtain from CMPC Celulosa of Chile) on-line mixing, the consumption level is 20% dry weight.
Use to derive from the forming web of the Albany International trade mark, these fiber blends are configured as the wet-sheet of basic weight 50 gram/square metre (gsm) as 84M.This wet-sheet is placed on the end face of spunbond polypropylene continuous filament yarn layer then, the basic weight of this continuous filament yarn layer is about 24gsm.This two-layerly is bearing in that to derive from the Albany International trade mark be the Hydroentangled online of 90 BH.Use 5 concetrated pipes tangle these the layer.Each concetrated pipe is equipped with the injection band with 0.005 inch hole of a row, and the density in these holes is 40 hole/inches.Hydraulic pressure is 1100 pounds/square inch (gauge pressures), and the total time that net is exposed under the pressure is 213 microseconds.
Then, the composite sheet drying of acquisition becomes final products.Products obtained therefrom and blank Hydroentangled material are compared, and the Hydroentangled material of this blank is with same wood pulps manufacturing, and spunbond with same ratio under same condition, but do not have reclaimed fibre.These the results are shown in following table 1:
Table 1
| Performance | The product of no recycled material | The product that 20% recycled material is arranged |
| Basic weight | 65.7 gram/square metre (gsm) | 66.0 gram/square metre (gsm) |
| Thickness | 12.88 mil (mils) | 12.64 mil (mils) |
| The CD trapezoidal tear | 1068 grams | 1070 grams |
| The MD trapezoidal tear | 1805 grams | 1868 grams |
| The CD drapability | 3.75 centimetre | 4.21 centimetre |
| The MD drapability | 6.11 centimetre. | 6.09 centimetre |
| Pulp side ABRASION RESISTANCE | 13.2 circle | 12.7 circle |
| Water capacity | 18.4 gram | 19.77 gram |
Use identical materials and condition to carry out second and take turns test, different is that the Hydroentangled used pressure of 20% recycled material sample that contains has been increased to 1200psig..According to dry this material of the same condition of precedent.The performance that obtains is listed in the table below 2:
Table 2
| Performance | The product of no recycled material | The product that 20% recycled material is arranged |
| Basic weight | 65.7 gram/square metre (gsm) | 63.5 gram/square metre (gsm) |
| Thickness | 12.88 mil (mils) | 12.7 mil (mils) |
| The CD trapezoidal tear | 1068 grams | 1179 grams |
| The MD trapezoidal tear | 1805 grams | 2147 grams |
| The CD drapability | 3.75 centimetre | 4.31 centimetre |
| The MD drapability | 6.11 centimetre | 6.16 centimetre |
| Pulp side ABRASION RESISTANCE | 13.2 circle | 17.3 circle |
| Water capacity | 18.4 gram | 19.10 gram |
Table 2 shows, can use higher entanglement pressure to reclaimed fibre.Although adopt support fabric or base material (that is, spunbond net) these samples that tangle, it is believed that these embodiment prove, can this support fabric or base material also directly at Hydroentangled online entanglement reclaimed fibre.
The reclaimed fibre of crossing through hydraulic fracture brings many advantages, because they are normally uniform, and fabric can easily Hydroentangled one-tenth tough and tensile, adhesion, not have in the past from the flocculus and the heterogeneity thing of the recycled material of adhesion fiber web formation.It is generally acknowledged that the relative deformation of employed reclaimed fibre among the present invention, twisted and irregular characteristic can cause higher reuse efficient, because the material of being washed off by high-pressure injection still less.It is believed that this to small part be because bigger surface area and cause the still less fibre morphology of fiber loss.The structure of reclaimed fibre and fibrous material provides extra advantage, because they adapt to wet formed technology easily, and has good retention at the shaping section.In addition, because these reclaimed fibres can be relatively easily process by wet formed technology, this provides suitable even parent material for Hydroentangled.
Highly homogeneous fabric brings advantage.The highly homogeneous fabric of a kind of outward appearance can be given aesthetic joyful.Less pulp material and/or the lighter base material of basic weight be can use, and the shielding or the covering power of expendable material need not.In some cases, some tensile property and other physical property are unlikely has strong change or local heterogeneity fault is arranged.
Described the present invention although get in touch some preferred embodiment, should be appreciated that the included theme of mode of the present invention is not limited to these specific embodiments.On the contrary, the marrow and interior all conversions, modification and the equivalent that can comprise of scope of following claims attempted to comprise in theme of the present invention.
Claims (20)
1. Hydroentangled supatex fabric comprises:
Recycled synthetic fibrous and fibrous material with at least a line element, described line element is made up of synthetic material, and has an at least a irregular deformation that is produced by the line element hydraulic fracture, described hydraulic fracture is for when the adhesion fibrous material is suspended in the liquid, separates this line element from this adhesion fibrous material.
2. Hydroentangled supatex fabric as claimed in claim 1, wherein said line element has the length of the about 15 millimeters scopes of about 1-.
3. Hydroentangled supatex fabric as claimed in claim 2, wherein said line element has the length of the about 10 millimeters scopes of about 1.5-.
4. Hydroentangled supatex fabric as claimed in claim 3, wherein said line element has the length of the about 5 millimeters scopes of about 2-.
5. Hydroentangled supatex fabric as claimed in claim 1, the form of wherein said irregular deformation are the flat fragment in the bending in the described line element, the described line element, expansion fragment and the combination thereof in the described line element.
6. Hydroentangled supatex fabric as claimed in claim 1, the line element of wherein said recycled material has the surface area greater than comparable line element in the fibrous material of adhering before the line element hydraulic fracture, and the hydraulic fracture of described line element is for it is separated with the adhesion fibrous material.
7. Hydroentangled supatex fabric as claimed in claim 6, the surface area of comparable line element in the fibrous material adhere before the surface area ratio line element hydraulic fracture of the line element of wherein said reuse greatly at least about 5%, and the hydraulic fracture of described line element is for it is separated with the adhesion fibrous material.
8. Hydroentangled supatex fabric as claimed in claim 1, wherein said synthetic material are the synthetic thermoplastic material.
9. Hydroentangled supatex fabric as claimed in claim 1, it also comprises pulp fibers.
10. Hydroentangled supatex fabric as claimed in claim 9, it comprises the recycled synthetic fibrous and fibrous material of the about 85 weight % of about 1-, and the pulp of the about 99 weight % of about 15-.
11. Hydroentangled supatex fabric as claimed in claim 1, its have about 20-about 200 the gram/square metre basic weight.
12. Hydroentangled supatex fabric as claimed in claim 1, wherein said recycled synthetic fibrous and fibrous material is selected from polyester, polyamide, polyolefin and combination thereof.
13. Hydroentangled supatex fabric as claimed in claim 1, wherein said pulp fibers are selected from new hardwood pulp fiber, new softwood pulp fiber, secondary stock and their mixture.
14. Hydroentangled supatex fabric as claimed in claim 1, it also comprises clay, starch, particulate and the super particulate that absorbs.
15. Hydroentangled supatex fabric as claimed in claim 1, it also comprises about at the most 3% remover.
16. a cleaning piece, it comprises one or more layers Hydroentangled supatex fabric as claimed in claim 1, and described cleaning piece basic weight is the about 200gsm of about 20-.
17. according to the cleaning piece of claim 16, its basic weight is the about 150gsm of about 40-.
18. the manufacture method of Hydroentangled supatex fabric, described method comprises:
The layer of the recycled synthetic fibrous and fibrous material with at least a line element is provided, described line element is made up of synthetic material, and has an at least a irregular deformation that is produced by the line element hydraulic fracture, described hydraulic fracture is for when the adhesion fibrous material is suspended in the liquid, separates described line element from described adhesion fibrous material;
Hydroentangled described layer is to form nonwoven web; With
Dry described net.
19. as the method for claim 18, the wherein said step of the layer of recycled synthetic fibrous and fibrous material that provides comprises, passes through to do the layer of forming technique or the described reclaimed fibre of wet formed deposition techniques on Hydroentangled fabric.
20. as the method for claim 18, the wherein said step of the layer of recycled synthetic fibrous and fibrous material that provides comprises the layer of forming by wet formed deposition techniques reclaimed fibre and pulp fibers on Hydroentangled fabric.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24709100P | 2000-11-10 | 2000-11-10 | |
| US60/247,091 | 2000-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1473217A true CN1473217A (en) | 2004-02-04 |
Family
ID=22933510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA018186246A Pending CN1473217A (en) | 2000-11-10 | 2001-11-07 | Hydroentangled nonwoven web containing recycled synthetic fibrous materials |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US20020115370A1 (en) |
| EP (1) | EP1358375A2 (en) |
| JP (1) | JP2004513256A (en) |
| KR (1) | KR20030051792A (en) |
| CN (1) | CN1473217A (en) |
| AR (1) | AR032772A1 (en) |
| AU (1) | AU3062702A (en) |
| BR (1) | BR0115259A (en) |
| CA (1) | CA2426027A1 (en) |
| MX (1) | MXPA03003768A (en) |
| WO (1) | WO2002038027A2 (en) |
| ZA (1) | ZA200302953B (en) |
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| WO2017176238A1 (en) * | 2016-04-04 | 2017-10-12 | Kimberly-Clark Worldwide, Inc. | Cleaning product with low lint and high fluid absorbency and release properties |
| CN108076647A (en) * | 2015-06-29 | 2018-05-25 | 金伯利-克拉克环球有限公司 | Dispersibility wet wipe and preparation method thereof |
| CN108135407A (en) * | 2015-10-30 | 2018-06-08 | 金伯利-克拉克环球有限公司 | Wipe product and its manufacturing method |
| CN111074445A (en) * | 2020-01-03 | 2020-04-28 | 启东和安无纺材料有限公司 | Method for manufacturing non-woven fabric and device suitable for method |
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| ITMI20030805A1 (en) * | 2003-04-17 | 2004-10-18 | Orlandi Spa | NON-FABRIC BASED ON EXPLODED FIBERS OR MULTI-COMPONENT FIBERS SPLITTABLE. |
| US7891898B2 (en) | 2005-01-28 | 2011-02-22 | S.C. Johnson & Son, Inc. | Cleaning pad for wet, damp or dry cleaning |
| US7976235B2 (en) | 2005-01-28 | 2011-07-12 | S.C. Johnson & Son, Inc. | Cleaning kit including duster and spray |
| US7740412B2 (en) | 2005-01-28 | 2010-06-22 | S.C. Johnson & Son, Inc. | Method of cleaning using a device with a liquid reservoir and replaceable non-woven pad |
| US8893347B2 (en) | 2007-02-06 | 2014-11-25 | S.C. Johnson & Son, Inc. | Cleaning or dusting pad with attachment member holder |
| JP5539661B2 (en) * | 2008-03-24 | 2014-07-02 | 旭化成ケミカルズ株式会社 | Wet wiper containing disinfectant |
| WO2010125545A2 (en) * | 2009-04-30 | 2010-11-04 | Kimberly-Clark Worldwide, Inc. | Nonwoven composite including post-consumer recycled material |
| US20110094691A1 (en) * | 2009-10-25 | 2011-04-28 | Nunn Kayren J | Process for regenerating post-consumer and post-industrial fibers |
| CA3038127C (en) | 2016-10-17 | 2022-09-27 | The Procter & Gamble Company | Fibrous structure-containing articles that exhibit consumer relevant properties |
| US10385515B2 (en) * | 2016-10-17 | 2019-08-20 | The Procter & Gamble Company | Fibrous structure-containing articles |
| FI12853Y1 (en) * | 2019-09-30 | 2020-12-30 | Suominen Corp | Production line for nonwoven fabric |
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- 2001-11-05 US US10/012,766 patent/US20020115370A1/en not_active Abandoned
- 2001-11-07 BR BR0115259-9A patent/BR0115259A/en not_active Application Discontinuation
- 2001-11-07 CA CA002426027A patent/CA2426027A1/en not_active Abandoned
- 2001-11-07 KR KR10-2003-7006326A patent/KR20030051792A/en not_active Application Discontinuation
- 2001-11-07 CN CNA018186246A patent/CN1473217A/en active Pending
- 2001-11-07 JP JP2002540619A patent/JP2004513256A/en active Pending
- 2001-11-07 WO PCT/US2001/046761 patent/WO2002038027A2/en active IP Right Grant
- 2001-11-07 MX MXPA03003768A patent/MXPA03003768A/en not_active Application Discontinuation
- 2001-11-07 AU AU3062702A patent/AU3062702A/en not_active Withdrawn
- 2001-11-07 EP EP01990862A patent/EP1358375A2/en not_active Withdrawn
- 2001-11-09 AR ARP010105256A patent/AR032772A1/en not_active Application Discontinuation
-
2003
- 2003-04-15 ZA ZA200302953A patent/ZA200302953B/en unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108076647A (en) * | 2015-06-29 | 2018-05-25 | 金伯利-克拉克环球有限公司 | Dispersibility wet wipe and preparation method thereof |
| CN108135407A (en) * | 2015-10-30 | 2018-06-08 | 金伯利-克拉克环球有限公司 | Wipe product and its manufacturing method |
| WO2017176238A1 (en) * | 2016-04-04 | 2017-10-12 | Kimberly-Clark Worldwide, Inc. | Cleaning product with low lint and high fluid absorbency and release properties |
| CN109072512A (en) * | 2016-04-04 | 2018-12-21 | 金伯利-克拉克环球有限公司 | Cleaning products with low lint and high fluid absorbency and release characteristics |
| GB2566167A (en) * | 2016-04-04 | 2019-03-06 | Kimberly Clark Co | Cleaning product with low lint and high fluid absorbency and release properties |
| GB2566167B (en) * | 2016-04-04 | 2022-05-11 | Kimberly Clark Co | Cleaning product with low lint and high fluid absorbency and release properties |
| CN111074445A (en) * | 2020-01-03 | 2020-04-28 | 启东和安无纺材料有限公司 | Method for manufacturing non-woven fabric and device suitable for method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030051792A (en) | 2003-06-25 |
| WO2002038027A3 (en) | 2002-11-07 |
| AR032772A1 (en) | 2003-11-26 |
| ZA200302953B (en) | 2004-04-15 |
| US20020115370A1 (en) | 2002-08-22 |
| EP1358375A2 (en) | 2003-11-05 |
| MXPA03003768A (en) | 2003-07-28 |
| AU3062702A (en) | 2002-05-21 |
| BR0115259A (en) | 2004-01-20 |
| CA2426027A1 (en) | 2002-05-16 |
| WO2002038027A2 (en) | 2002-05-16 |
| JP2004513256A (en) | 2004-04-30 |
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