CN1681979A - Polyolefin fibres and their use in the preparation of nonwovens with high bulk and resilience - Google Patents
Polyolefin fibres and their use in the preparation of nonwovens with high bulk and resilience Download PDFInfo
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- CN1681979A CN1681979A CNA038220237A CN03822023A CN1681979A CN 1681979 A CN1681979 A CN 1681979A CN A038220237 A CNA038220237 A CN A038220237A CN 03822023 A CN03822023 A CN 03822023A CN 1681979 A CN1681979 A CN 1681979A
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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
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
- D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/30—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M7/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made of other substances with subsequent freeing of the treated goods from the treating medium, e.g. swelling, e.g. polyolefins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Nonwoven Fabrics (AREA)
- Artificial Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Non-woven materials from polyolefin-based fibres which have bulk and resilience comparable to polyester fibres are described herein, thus expanding the utility of polyolefin fibres and nonwovens to a plethora of industrial applications which previously excluded products based on polyolefin fibres due to their hitherto inadequate bulk or resilience. Control of polyolefin fibre characteristics such as the fibre/fibre friction, fibre crystallinity, draw ratio, or selection of the spin finish so as to comprise essentially of an aqueous emulsion of polysiloxanes render them suitable for preparing bulky and resilient nonwovens.
Description
Technical field
Can obtain bulk polyolefin nonwoven fabric by control polyamide fiber characteristic.In other physical characteristics of the fiber that is suitable for preparing bulk and resilient nonwoven fabric, fibre/fibre frictional force and degree of crystallinity are disclosed.These tencels have been realized being used for before the polyolefin nonwoven fabric owing to the bulkiness and the elasticity of their deficiencies and being confined to so far or subject is got rid of the technical field of polyamide fiber in polyester and nylon.
Background technology
The stable fiber of conventional polypropylene can not provide the nonwoven fabric with high elasticity and bulkiness, does not reach the degree of polyester fiber at least.
Derive from conventional polyolefin such as polypropylene and poly fiber, be not enough to provide have enough bulkiness and flexible nonwoven fabric so that the alternative of suitable polyester non-woven fabric to be provided.
The bulkiness that conventional polyamide fiber has is about 20～25cm
3/ g, and elasticity is about 85%.The inventor makes bulkiness with improvement but the part member of the group of the polyamide fiber product ommercialization that significantly descends of elasticity wherein.Fibrevisions HY-Comfort
The bulkiness of the improvement that fiber has is up to 45cm
3/ g, but the elasticity that has is less than 50%.But, and significantly, HY-Comfort fiber can not be produced the nonwoven fabric with the bulkiness that is comparable to polyester.Coml interest is the bulkiness that improves by the nonwoven fabric of polyamide fiber preparation.
Depend on baking combined techniques and finish type, the bulkiness that polyester non-woven fabric has is about 100cm
3/ g, and elasticity is about 75%.
US6,388,013 have described the performance balance with improvement, comprise the polyamide fiber of toughness, modulus and the percentage elongation of improvement.This is by adding in the polypropylene fibre forming composition based on Noblen or copolymer or these propylene polymer resins and the blend that does not contain the resin of propylene, and the aromatic resins of 1～10 weight % is realized.The invention provides the polyamide fiber of the toughness with improvement, the toughness of above-mentioned improvement obtains by add a small amount of aromatic resins in polyolefin.Demonstrate high toughness by blend extruding and the polypropylene fibre that stretches, the ability that therefore has under higher speed and process with thinner fiber number.
US5,770,532 have described a kind of method that fibre and wool is solidified, described fibre and wool is by the staple fiber that comprises polyester, polyethylene or polypropylene fibre or comprise that the spun filament of polyester, polyethylene and polyacrylic artificial fibre moulding material prepares, and be 10mm or produce with thickness more, and do not have, and there is not adhesive in conjunction with the binder fiber that comprises bi-component or special fused fiber; And described fibre and wool can mix with natural fabric, it is characterized in that at hydraulic pressure only be under the situation of 60 crust at the most, only by acupuncture manipulation in the unidirectional water wool is solidified.
US5,589,256 have related to the method that a kind of production is easy to the high bulkiness fiber of compacting, and described fiber contains bonding particle.But the fiber of high bulkiness contains the functional group that hydrogen bonding or co-ordinate covalent bond close, and applies adhesive make particle and fiber bonding in fiber.Adhesive contains with particle and forms the functional group of hydrogen bond or co-ordinate covalent bond and form the functional group of hydrogen bond with fiber.The particle that is adhered in a large number on the fiber is adhered on the adhesive by hydrogen bond or co-ordinate covalent bond with the form of particle, and adhesive is adhered on the fiber by hydrogen bond.Fiber product comprises by the compacting of exerting pressure, have the characteristic fiber that density is the functional group of 0.1～0.7g/cc and hydrogen bonding; With by placing adhesive between particle and the fiber to be adhered to particle on the fiber, but described particle contains the functional group that hydrogen bonding and co-ordinate covalent bond close, and described adhesive contains functional group that can form adhesive-particle hydrogen bond or adhesive-particle co-ordinate covalent bond and the functional group that can form adhesive-fiber hydrogen bond.Adhesive is selected from the polymer adhesive that (a) has repetitive, and wherein each repetitive contains and can form hydrogen bond or co-ordinate covalent bond or form the functional group of hydrogen bond with fiber with particle; (b) non-polymer organic bond, wherein product comprises 0.05～80% above-mentioned bonding particle, above-mentioned bonding particle mainly is adhered on the fiber by hydrogen bond or co-ordinate covalent bond.
US5,478,646 described by will be mainly by rule five a unit number of components be 0.7 or the raw material extruding that constitutes of more polypropylene and optional be 10 with resulting extrded material intensity height and the average-size that obtains that stretch, the polypropylene fibre of 000-0.1 Denier (denier).
US5,204,174 have related to the nonwoven web of the thermoplastic fibre that comprises high elongation that the blend by acrylic polymers and butene polymers forms and non-orientation, and wherein by weight, blend is by 90%～50% polypropylene and 10%～50% polybutene preparation.Resulting nonwoven web has toughness, tear resistance, drapability and the adaptability of raising.
US4,563,392 have related to a kind of polyamide fiber of coating, it comprises that (a) mean molecule quantity is at least about 500,000 polyethylene or polyacrylic monofilament or multifilament, under poly situation, toughness is at least about the 15g/ Denier and stretch modulus is at least about the 300g/ Denier; And under polyacrylic situation, toughness is at least about the 8g/ Denier and stretch modulus is at least about the 160g/ Denier; (b) on the monofilament and contain the coating of the polymer with ethene or propylene degree of crystallinity on the filament of part at least at multifibres, described coating exists with about amount of 0.1%～about 200%, in the weight of fiber.
Do not have prior art to relate to, be unrealized yet the bulkiness of polyolefin nonwoven fabric is brought up to significant amount.The inventor has found that the polyolefin nonwoven fabric lacks the way to solve the problem of bulkiness.
Summary of the invention
The present invention is based on novel polyolefin fibers, described polyamide fiber is suitable for improving the bulkiness of nonwoven fabric prepared therefrom.
First aspect of the present invention relates to a kind of new type polyolefin based polyalcohol fiber, and described polymer fiber is suitable for preparing the nonwoven fabric with high bulkiness.Fiber of the present invention is based on polyolefin polymer, and has at least one and be selected from following characteristic:
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxane emulsion;
Iii) draw ratio was at least 1: 1.5; With
Iv) fibre crystallinity is at least 50%.
Another aspect of the present invention relates to a kind of method for preparing polyolefin-based fiber, described method be characterised in that use nucleated polymer, draw ratio be at least 1: 1.5, final fibre fineness is the polysiloxane emulsion that 2～10 dtexs and spinning oil mainly comprise modification usually.
The invention discloses high fiber bulkiness needn't be corresponding to high nonwoven fabric bulkiness.The invention discloses the important fiber properties that can be used for defining fiber properties, and it is corresponding to high nonwoven fabric bulkiness, comprises the selection of spinning oil; And/or the selection of the draw ratio when being used to prepare the selection of polymer grade of fiber and/or preparation fiber.By the free-revving engine of the nonwoven cloth material of polyolefin-based staple fiber preparation as defined herein.Another object of the present invention has related to the nonwoven cloth material based on polyolefin-based staple fiber, and wherein the bulkiness that has of nonwoven cloth material is at least 30cm
3/ g, and elasticity is at least 50%.
The interesting aspect of the present invention has related to the method by the bulk nonwoven fabric of polyolefin-based fiber production, wherein said nonwoven fabric aspect bulkiness and elasticity corresponding to polyester material.Use tencel, suitable preparation method or combined techniques, the present invention has prepared the bulkiness that has almost up to 80cm
3/ g and elasticity almost are 86% nonwoven fabric.This compares highly beneficial with the nonwoven fabric that is prepared by conventional polyamide fiber, the bulkiness that described nonwoven fabric has is about 22cm
3/ g and elasticity are about 86%.Free-revving engine of the present invention has related to a kind of method for preparing nonwoven cloth material, and it comprises use fiber of the present invention, or uses the fiber of the method preparation of fiber produced according to the present invention.
Other aspect of the present invention has related to the health product that comprises nonwoven cloth material of the present invention and has related to the method for preparing health product, and described method comprises uses nonwoven cloth material of the present invention.
Detailed Description Of The Invention
As used herein, term " bulk " and " bulkiness " mean and relate to voluminosity, that is, and and high volume/weight and count cm
3/ g.
As used herein, term " fibre/fibre frictional force " meaning is with fiber required power separated from one another.
As used herein, term " fibre crystallinity " meaning is to have three-dimensional order in polymer on molecular level, and described fibre crystallinity is measured by differential scanning calorimetry (DSC) and X-ray diffraction (XRD).
As used herein, term " elasticity " meaning is to cause recovering original-shape and size after the load of being out of shape or the tension force removing, and, gets back to the ability of original-shape or state after compression that is.
The inventor by polyolefin-based fiber production nonwoven cloth material, described polyolefin-based fiber has bulkiness and the elasticity that is comparable to polyester fiber, therefore the application extension with polyamide fiber and nonwoven fabric arrives more commercial Application, above-mentioned commercial Application is previous because their not enough so far bulkiness or elasticity has been got rid of the product based on polyamide fiber.
Surprisingly, the inventor has found that high fiber bulkiness needn't be corresponding to high nonwoven fabric bulkiness.The inventor finds, for nonwoven fabric, compares with having higher fibre/fibre frictional force, and low fibre/fibre frictional force produces higher bulkiness.Be not limited under the situation of particular theory, this be because, to small part owing to be easy to the fiber of low friction is moved freely in used combing and thermal process.The fiber of these low frictions is because their smooth property has low fiber bulkiness.
The bulkiness of nonwoven fabric depends on, depends in part on the characteristic of polyamide fiber at least.The inventor finds that fiber properties influences the bulkiness of nonwoven fabric to a great extent, and has prepared the fiber that is suitable for preparing the nonwoven fabric with needed bulkiness.
First purpose of the present invention relates to the fiber that is suitable for preparing bulk nonwoven fabric.The inventor has determined to be the bulk necessary fiber properties of nonwoven fabric of acquisition, that is, and and can be to the fibre/fibre frictional force of small part by selecting to comprise that mainly polysiloxane emulsion is controlled; The draw ratio that is fit to; With the fibre crystallinity that is fit to.The inventor finds that any of suitable these parameters of setting makes can prepare bulk nonwoven fabric.Therefore, have at least one based on the fiber of polyolefin polymer and be selected from following characteristic:
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxane emulsion;
Iii) draw ratio was at least 1: 1.5, and final fibre fineness is the 2-10 dtex usually;
Iv) fibre crystallinity is at least 50%.
As mentioned above, in order to obtain bulk polyolefin nonwoven fabric, fibre/fibre frictional force is the important parameter that should suitably set.In preferred embodiments, fibre/fibre frictional force is no more than 500g, as is no more than 400g.Fibre/fibre frictional force is generally 200～1000g, as 200～800g, and preferred 200～600g, more preferably 200～500g, most preferably 200～400g.
The present inventor finds that the type of spinning oil has appreciable impact to the fiber bulkiness.Found that the type of spinning oil controlled fibre/fibre frictional force to a certain extent, it has controlled the fiber bulkiness to a certain extent.Therefore, found that the spinning oil of giving the low fibre/fibre frictional force of fiber demonstrates low fiber bulkiness.Under the situation that is not limited to specific theory, think that this effect is to be produced by the smooth property of fiber, wherein said fiber can not be separated from one another, thereby cause low relatively fiber bulkiness.
As mentioned above, fibre/fibre frictional force depends on, depends in part on the selection of spinning oil at least.In this article, " spinning oil " meaning be in spinning process (first kind of finish) with at subsequently drawing process (second kind of finish) but in fluid composition on the paint fiber.Wherein, spinning oil is by making fibre lubrication and making their antistatic spinning processes that makes easier.Can use antistatic additive to guarantee that fiber is not charged in spinning and drawing process; As described herein, in spinning oil, can use anion, CATION and non-ionic antistatic agent.The total amount of the antistatic additive on the paint fiber is preferably low as far as possible when still obtaining needed antistatic effect, and as 0.01～0.5 weight %, preferred 0.02～0.35 weight %, and more preferably 0.05～0.2 weight % are based on the amount of fiber.The amount of antistatic additive also preferably remains on minimum of a value in second kind of spinning oil.The amount of the spinning oil that preferably applies in spinning process is higher than the amount that applies in drawing process.When containing cationic antistatic agent in second kind of spinning oil, described cationic antistatic agent more preferably is at most 10% amount existence, based on total effective dose of second kind of spinning oil preferably to be at most 20%.
Combine with pencil in order to ensure filament, spinning oil can contain a certain amount of reagent of giving viscosity in addition.This makes fiber to process, and can tangle up.As described herein, the example that is used for the reagent of giving viscosity of this purpose is indeterminate plant oil, long-chain alcohol, ether and ester, methyl amimoacetic acid and non-ionic surface active agent.
For filament during processing does not wear or weares and teares, spinning oil can contain lubricant in addition, and described lubricant can be regulated fibre/fibre and fiber/metal friction power in process of production.Especially, must regulate fiber/metal friction power in the process in spinning stage, with respect to the fiber/metal friction power and the fiber in the crimping machine/metal friction power of draw roll.
Spinning oil contains water usually in addition and adds emulsifying agent or the surfactant that keeps in the aqueous solution lipophilic constituent more or less.Water is preferred solvent among the present invention; In order to eliminate possible environmental hazard, should avoid using other solvent as far as possible.
Fiber of the present invention typically contains the spinning oil that mainly comprises polysiloxane emulsion.More typically, fiber of the present invention contains the spinning oil that mainly comprises the polysiloxanes aqueous emulsion.The polysiloxanes aqueous emulsion that is suitable for being used in the spinning oil generally includes at least 25% effective content, the effective content as at least 30%, preferred at least 35% effective content, according to appointment 40%.It is 2～15% that spinning oil is suitable in concentration, applies as 5～10% times.
In typical embodiment, with respect to fiber, the level of the spinning oil that fiber contains is about 0.2～1%wt/wt, and is preferred 0.3～0.85% as 0.25～0.9%, and more preferably 0.35～0.85%.
Under the situation that is not limited to any specific spinning oil, particularly suitable spinning oil is Synthesin 7490 FILL according to the present invention
This spinning oil comprises the elastomer based on siloxanes, and wherein, described elastomer comprises the modified polyorganosiloxane emulsion.Resemble Synthesin 7490 FILL
The same, other finish that comprises the modified polyorganosiloxane emulsion also is fit to.Spinning oil is suitably at room temperature soluble in water, and it can be applied by flooding, padding or spray.When being about 100 ℃ in temperature, during as 80 ℃ of following dryings, spinning oil is crosslinked.
Spinning oil can apply in two or more stages.The active principle that is fit in the spinning oil, promptly antistatic additive, lubricant, emulsifying agent and the total concentration of giving the reagent of viscosity (are generally 0.7～2.5% effective content) and are usually less than in second kind of spinning oil and (be generally 4～12% effective content) in first kind of spinning oil.Therefore, the viscosity of first kind of spinning oil is lower usually.Thereby in having the dispersion of MV minium viscosity, it is favourable promptly using any high viscosity component in first kind of spinning oil.
In order to obtain high bulkiness in nonwoven fabric, another key property of fiber is a fibre crystallinity.As mentioned above, fibre crystallinity suitably is at least 50%.Therein in order to obtain in nonwoven fabric in the embodiment that high bulkiness controls fibre crystallinity, fibre crystallinity preferably at least 55% as at least 60%, is surveyed by DSC or XRD.
In another aspect of the present invention, can control bulkiness by used polymer grade (or matrix polymer) in the selection preparation fiber.Polymer be selected from polypropylene homopolymer and with the random copolymer of ethene, 1-butylene, 4-methyl-1-pentene etc. and the linear polyethylene of different densities, as high density polyethylene (HDPE), low density polyethylene (LDPE) and linear low density of polyethylene and blend thereof.Polymeric material can with other non-polyolefin polymer, mix as polyamide or polyester, condition is the largest portion that polyolefin still constitutes composition.
In another aspect of the present invention, can be by selecting nucleator, as the nucleator controlling fiber bulkiness of in the polyolefin raw material, using.Nucleator usually is mixed for commercial Application with crystallization thermoplastic polymer, to give the characteristic of improvement, as the mechanical property of improvement.Known typical nucleator be aliphatic series or aromatic carboxylic acid slaine, contain the branched polymer and the mineral of ingotism (dendrittic) side chain, as chalk, gypsum, clay kaolin, mica, talcum and silicate.The nucleator of nearer research and development is fused to polymer melt, as based on D-D-sorbite and 1,3-2,4-is two-compound of (3,4-dimethyl benzene methylene)-D-D-sorbite in.
The effect of nucleator is the crystallization process that promotes in the matrix polymer.Nucleator constitutes very high surface area, and they are preferred nucleation sites in the matrix polymer.Nucleation process is main by reduce the specific area of described nucleator in matrix polymer, as the thermodynamic process that drives by the specific area that reduces chalk particle or talcum particle.
Nucleator has also promoted the polymer crystallization process.Therefore, nucleator can make more or less crystallization of matrix polymer, as unbodied many than crystallization basically, or crystallization more than unbodied basically.In this article, " crystallization " meaning is a crystal region in the amorphous polymer matrix, the zone of arranging with substantially parallel each other mode of rule as polymer chain or partial polymer chain therein.On the contrary, " amorphous " meaning is the interior zone of polymeric matrix that does not have the arrangement or the ordering of polymer chain therein basically.
In preferred embodiments, polyolefin is selected from the homopolymers and the copolymer of isotactic or syndiotactic polypropylene homopolymer, monoolefine, as ethene, propylene, alpha-olefin, 4-methyl-1-pentene all-and altogether-polymers and blend, linear polyethylene, high density polyethylene (HDPE), low density polyethylene (LDPE) and linear low density of polyethylene and blend thereof.More preferably polyolefin is selected from homopolymer polypropylene and homopolymer polyethylene.Most preferably polyolefin is a homopolymer polypropylene.
Degree of crystallinity is controlled by nucleator to small part.And this has also influenced the mechanical performance of polymer.For example, polymer chain of closely filling in crystal region or partial polymer chain will make the more given stress of polymer chain carrying of per unit area.And, since in crystallite polymer chain in long relatively distance closely and the rule contact, make Van der Waals force that they combine gradually than high in the amorphous region.Therefore, considerable crystalline polymer will improve the intensity and the rigidity of polymer.
In the typical embodiment of the present invention, polyolefin polymer is a nucleated polymer.Suitably, nucleator is selected from talcum, chalk, gypsum, clay, kaolin, silicate, aromatic carboxylic acid salt, phosphate ester salt and based on the compound of D-sorbite.More suitably, nucleator is a talcum.In the embodiment of polyolefin polymer for the nucleated polymer of employing talcum formation nucleus, nucleation reaches the level of the talcum of 5000～10000ppm usually.
Under the situation that is not limited to any specific polymer grade, when using in the present invention, preferred raw material polypropylene polymer grade can be AdstifHA840R.AdstifHA840R is the homopolymers of modification, it is characterized in that high rigidity and gloss.Polymer grade adopts the talcum of 8500ppm to form nucleus to improve degree of crystallinity.In another aspect of the present invention, and compare, make fiber have higher flexural modulus by the fiber of Adstif HA840R homopolymers raw material production by the fiber of the polypropylene material production of standard.Under the situation that is not limited to any specific theory, think that the higher flexural modulus that obtains by Adstif HA840R is because polymer adopts talcum to form the fact of nucleus.Therefore, therefore easy crystallization of nucleation homopolymers also more has rigidity.For example, the flexural modulus that As used herein, AdstifHA840R have is about 2250MPa.Compare with this value, conventional raw material polypropylene homopolymer grade, as PPH7059, the flexural modulus that has is about 1450MPa.
Equally, the fiber bulkiness can be controlled by selecting the draw ratio in the preparation fiber to small part.In this article, " draw ratio " or " ratio of elongation " meaning is the last and initial velocity ratio of setting of roller.
Fiber of the present invention uses draw ratio to be about 1: 1.5～about 1: 8 usually, 1: 1.5 according to appointment～1: 6,1: 1.5 according to appointment～1: 4, about 1: 2～1: 8, about 1: 2～1: 6, or be used for polypropylene fibre in about 1: 2～1: 4 and stretch, and using draw ratio is to be used for polyethylene fiber peacekeeping polypropylene, polyethylene bicomponent fiber in 1: 2～1: 4.5 to stretch, produce suitable fineness, typically for example about 2～20 dtexs, as 2～10 dtexs, typically be 3～9 dtexs, more typically be 5～8 dtexs.Draw ratio has certain influence to degree of crystallinity, that is, under bigger draw ratio, polymer chain is arranged more preferably, and therefore crystallization preferably.Bigger draw ratio also is easy to make crystal region to be orientated along making on the anisotropic basically fibre length of these fibers basically.The fiber of crystallization produces the fiber of rigidity more more, and high more as the degree of crystallinity and the orientation of crystal, the rigidity of fiber is high more.
The draw ratio of polypropylene fibre that preferably is suitable for obtaining having the nonwoven fabric of high bulkiness is generally 1: 2～and 1: 4.Usually, the draw ratio that polypropylene fibre according to the present invention has is about 1: 1.5～1: 6,1: 2 according to appointment～1: 5, and preferred 1: 2.5～1: 4.
According to the present invention, the high-crystallinity of single fiber makes bulk nonwoven cloth material, and as more crystallizations, and therefore the fiber of bigger rigidity makes nonwoven cloth material have the outward appearance of more volume.Be not limited under the situation of any particular theory, thinking that the fiber of high crystallization has deflection a little and is rearranged for the ability of reset condition owing to the intrinsic rigidity of fiber when adopting external force that nonwoven cloth material is worked.This characteristic to small part can be undertaken quantitatively by elasticity.The elasticity meaning is the ability of getting back to original-shape and size after load of removing the generation distortion or tension force.It is about 30% that the elasticity that is suitable for preparing the fiber of bulk nonwoven fabric is at least about usually, as at least about 40%, and according to appointment 42%.
As mentioned above, the bulkiness that is suitable for preparing the fiber of bulk nonwoven fabric needn't be associated with the bulkiness of nonwoven fabric.But, be suitable for preparing the bulkiness that the fiber of the present invention of bulk nonwoven fabric has usually and be at least about 20cm
3/ g is preferably at least about 30cm
3/ g and 35cm
3/ g is as at least about 40cm
3/ g.
According to the present invention, the polyolefinic flexural modulus that is used to prepare the fiber that is suitable for preparing bulk nonwoven fabric is at least 1200MPa usually, as 1500MPa at least.
As mentioned above, fully control any and be selected from fibre/fibre frictional force; Spinning oil; Draw ratio; Produce the fiber that is suitable for preparing bulk nonwoven fabric with the characteristic of fibre crystallinity.According to the present invention, the fiber that is preferably based on polyolefin polymer has at least two and is selected from following characteristic:
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxane emulsion;
Iii) draw ratio was at least 1: 1.5;
Iv) fibre crystallinity is at least 50%;
V) polyolefin polymer is a nucleated polymer;
Vi) the flexural modulus that has of polyolefin is at least 1500MPa;
Vii) the ST dtex is 2～20 dtexs; With
Viii) the fiber bulkiness is 20cm
3/ g preferably is at least about 30cm
3/ g.
Suitably, fiber of the present invention has at least three, as at least four, is selected from following characteristic as at least five, six, seven or eight:
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxane emulsion;
Iii) draw ratio was at least 1: 1.5;
Iv) fibre crystallinity is at least 50%;
V) polyolefin polymer is a nucleated polymer;
Vi) the flexural modulus that has of polyolefin is at least 1500MPa;
Vii) the ST dtex is 2～20 dtexs; With
Viii) the fiber bulkiness is 20cm
3/ g preferably is at least about 30cm
3/ g.
Fiber more preferably of the present invention has at least two and is selected from following characteristic:
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxane emulsion;
Iii) draw ratio was at least 1: 1.5;
Iv) fibre crystallinity is at least 50%; With
V) polyolefin polymer is a nucleated polymer.
Suitably, fiber of the present invention has at least two and is selected from following characteristic:
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxane emulsion;
Iii) draw ratio was at least 1: 1.5;
Iv) fibre crystallinity is at least 50%,
V) polyolefin polymer is a nucleated polymer; With
And at least one, be selected from following characteristic as at least two:
Vi) the flexural modulus that has of polyolefin is at least 1500MPa;
Vii) the ST dtex is 2～20 dtexs; With
Viii) the fiber bulkiness is 20cm
3/ g preferably is at least about 30cm
3/ g.
In the most preferred embodiment, be polyolefin polymer according to the fiber that the present invention is based on polyolefin polymer, and described fiber has following characteristic for nucleated polymer:
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxane emulsion;
Iii) draw ratio was at least 1: 1.5; With
Iv) fibre crystallinity is at least 50%.
Another object of the present invention relates to a kind of by above-mentioned nonwoven cloth material based on polyolefinic staple fiber preparation.
The present invention has related in addition and has a kind ofly prepared the method for non-woven fabrics fabric by staple fiber, and the method comprising the steps of (a) forms and comprise the fiber web of the artificial staple fibre of the present invention and (b) with the fiber web combination.Especially, staple fiber demonstrates low fibre/fibre frictional force, as is no more than 600g, as is no more than 400g, suitably is no more than 300g.
Randomly definition, nonwoven cloth material of the present invention is based on polyolefin-based staple fiber, and wherein the bulkiness that has of nonwoven cloth material is at least 30cm
3/ g, and elasticity is at least 50%.Typically, the elasticity that nonwoven cloth material has is at least 55%, as at least 60%.
Typically, the bulkiness that nonwoven cloth material has is at least 35%, as at least 40%, and preferably at least 45%, more preferably at least 50%, more preferably at least 55%, most preferably at least 60%.
Another object of the present invention relates to a kind of method for preparing polyolefin-based fiber, and described method is characterised in that the use nucleated polymer, and draw ratio is 1: 1.5, and spinning oil mainly comprises the modified polyorganosiloxane emulsion.
In a preferred embodiment of the invention, fiber is polyolefin-based staple fiber or its copolymer as disclosed herein.The polyolefin that is used to produce this fiber comprise be selected from isotactic or syndiotactic polypropylene homopolymer and with the random copolymer of ethene, 1-butylene, 4-methyl-1-pentene etc. and the linear polyethylene of different densities, as the polyolefin of high density polyethylene (HDPE), low density polyethylene (LDPE) and linear low density of polyethylene and blend thereof.Polymeric material can with other non-polyolefin polymer, mix as polyamide or polyester, condition is the largest portion that polyolefin still constitutes composition.Suitably, polymer is selected from polyethylene and polypropylene.
Be used to produce the fused mass that contains polyolefinic fiber and also can contain various conventional fibre additives, as calcium stearate, antioxidant, processing stabilizers, compatilizer with comprise brightening agent, as TiO
2And/or the pigment of other colouring agent.
Fiber can be one pack system or bicomponent fiber, and for example, the latter is for making the shell-and-core type bicomponent fiber of core off-centre (leaving the center) or homocentric (basically at the center) location.Bicomponent fiber has core and shell usually, and it comprises polypropylene, polyethylene, high density polyethylene (HDPE)/linear low density of polyethylene, polypropylene random copolymer/polyethylene or polypropylene/polypropylene random copolymer respectively.The cross sectional shape of fiber can or have hollow core for circle, three leaves, four leaves in addition except above-mentioned shape.
Conventional melt spinning is preferably used in the spinning of fiber, is also referred to as the long spin method and realizes, spinning and stretching are carried out with two independent processes.Randomly, can use " compact spinning " of other method for preparing staple fiber, particularly single stepping to realize the present invention.
For spinning, will contain polyolefinic material extruding and make the hole of polymer melt by spinneret.With the extrudate cooling with by air flow it is solidified subsequently, and simultaneously it is pulled into filament.This is undertaken by applicator roller usually.Optional system also is fit to as spraying tow or dip-coating tow in spinning oil.
The fiber degradation amount influences the thermal characteristic.Therefore, too low fiber degradation is easy to produce more weak processability on thermal characteristic more weak for fiber and the spinning line.The consumption that contains stabilizing agent in the polyolefinic material, the temperature of extruder and the speed and the temperature of quenching air are depended in the degraded of polymer.The method of measuring the Degradation Level of spinning fibre is to measure the melt flow rate (MFR) (MFR) of fiber and the MFR of itself and initial polymeric material is compared.In a preferred embodiment of the invention, the MFR of spinning fibre is 1.5～7 times of MFR of raw material, is generally 2～5 times of MFR of raw material.But, should notice that this is somewhat dependent upon the MFR of raw material.Therefore, for the raw material with high relatively MFR, the preferred proportion of fiber MFR and raw material MFR is lower a little usually, for example, is 10～15 raw material for MFR, is 3～5 times; And for MFR is 15～25 raw material, is 2～4 times.
Drawing process generally includes a series of hot-rollings and hot-blast stove.Filament is at first by a cover roller, subsequently by hot-blast stove, then by the second cover roller.The temperature that hot-rolling and hot-blast stove have usually is about 50～140 ℃, according to appointment 70～130, according to the type selecting temperature of fiber; Usually being 115～135 ℃ for polypropylene fibre, is 95～105 ℃ for polyethylene fiber, and for the polypropylene, polyethylene bicomponent fiber is 110～120 ℃.The speed of velocity ratio first cover of the second cover roller is fast, and therefore the filament that heats is stretched.Can also use second hot-blast stove and the 3rd cover roller (stretching of two stages), the 3rd cover roller has than the higher speed of second cover.Similarly, can use the roller and the hot-blast stove of extra cover.Draw ratio is the ratio between the roller of last cover and junior one cover.Fiber of the present invention uses draw ratio to stretch for about 1: 1～about 1: 10 usually.
After stretching, adopt second kind of spinning oil to handle on tow, for example use applicator roller or pass through spraying or dip-coating.
Usually, be suitable for combing, for example can produce " waveform ", the fiber crimp distortion (crimping) that stretches by making them in order to make fiber.Effectively Texturized, promptly quite a large amount of ripples makes have high process velocity in carding machine in fiber, as 80m/min at least, be at least usually 150m/min or even be 200m/min or more, and therefore produce high productivity ratio.
Crimping usually use be called that stuffer box carries out or, as selection, can the filament air is Texturized.In some cases, that is, for asymmetric bicomponent fiber,, bead designs can be removed because the heat treatment of this fiber produces three-dimensional from crimping.
Fiber of the present invention usually Texturized to degree be about 5～15 crease/cm, be generally about 7～12 crease/cm, the quantity of crease is the quantity of turning round in the fiber.
Choose wantonly and can for example pass through spraying process by apply the processing of spinning oil for the third time to filament after crimping machine.
After curling, usually with filament by hot-blast stove with location and dry.The temperature of hot-blast stove depends on fibrous, but the most obvious be under the fusing point of minimum molten component.The temperature of hot-blast stove is generally 90～130 ℃, as 95～125 ℃.Heat treatment also can be removed a certain amount of water from spinning oil.Dry run, a most important factor as insoluble by the possible crosslinked finish that makes, and is finally given permanent characteristic.Remaining water content preferably is less than 2.0 weight %, more preferably less than 1.0 weight %, based on the weight of fiber.
Then, with the filament feeding cutter of drying, therein filament is cut into the staple fiber of Len req.Fiber of the present invention is cut into length be generally about 18～180mm, be more typically the staple fiber of about 25～100mm, particularly about 30～75mm.
Arbitrary place of three positions on fiberline, promptly after spinning, after stretching or after curling, can apply antistatic additive.Antistatic additive is preferably non-ionic antistatic agent, as phosphate, or anionic antistatic agents, and as phosphate, and preferred cationic antistatic additive not.In a preferred embodiment of the invention, in any case after curling, apply antistatic additive.
It is 1: 2～1: 8 that the method for preparing nonwoven fabric of the present invention generally includes preparation tensile fiber ratio, as the step of 1: 2～1: 6 fiber.
The method for preparing nonwoven fabric of the present invention generally includes use and mainly comprises at least 25% effective content, the effective content as at least 30%, preferred at least 35% effective content, the step of the spinning oil of 40% polysiloxanes aqueous emulsion according to appointment.Suitably, be 2～15% with spinning oil in concentration, apply as 5～10% times.With respect to fiber, the spinning oil level is 0.2～1%wt/wt suitably, and is preferred 0.3～0.85% as 0.25～0.9%, more preferably 0.35～0.85%.
The present invention relates to a kind of method for preparing nonwoven cloth material in addition, and it comprises the fiber that use is defined herein, or uses prepared as defined herein fiber.
When preparation nonwoven cloth material of the present invention, fiber is 130～150 ℃ in temperature, as 132～148 ℃, preferably under 134～144 ℃, suitably uses suitable bicomponent fiber, as the combination of ES-FiberVisions fiber type ES-C Cure hot-blast stove.
Another aspect of the present invention relates to a kind of health product of nonwoven cloth material as herein defined that comprises.Another object of the present invention relates to a kind of preparation health product method, and it comprises and uses nonwoven cloth material as herein defined.
Below described in an embodiment fiber characterizes according to various parameters, described parameter determine respectively aspect fiber bulkiness and the nonwoven fabric bulkiness very important.These parameters are the most significant to be degree of crystallinity and fibre/fibre frictional force.The bulkiness of fiber and nonwoven fabric and elasticity are measured according to any standard method well known by persons skilled in the art.
Measure all measuring according to ISO 554 normal atmospheres 23/50.
The degree of fibre crystallinity can determine that above-mentioned two kinds of methods are well known by persons skilled in the art as what surveyed by difference formula scanning calorimetry (DSC) or X-ray diffraction (XRD).
Bulkiness and elasticity can be measured according to Inda Standard test " Measuring Compression andRecovery of Highloft Nonwoven " IST 120.3-92.This method also is suitable for measuring the bulkiness and the elasticity of fiber.
The specific embodiment
Embodiment 1
The bulkiness and the elasticity of various fibers and corresponding nonwoven fabric thereof have been provided in the following table 1.
By the data of listing in the table 1 as can be seen, wherein, many parameters are influential to the bulkiness and the elasticity of fiber and nonwoven fabric: the type and the draw ratio of the type of used matrix polymer, the spinning oil that applies during drawing process.Also measured two other parameter, i.e. fibre/fibre frictional force and fibre crystallinity, described parameter also depends on the type of used matrix polymer, the type and the draw ratio of the spinning oil that applies to a certain extent during drawing process.Therefore, the bulkiness of fiber and nonwoven fabric and elastic vertical connect type, the type of spinning oil, the draw ratio that depends on matrix polymer, and depend on fibre/fibre frictional force and degree of crystallinity indirectly, for example these characteristics only reflect the type of the type of matrix polymer used in the preparation process, used spinning oil and used draw ratio.Fibre/fibre frictional force and crystallinity value are used for helping determining the relation between a plurality of parameters of the present invention.Degree of crystallinity is measured by difference formula scanning calorimetry (DSC) and X-ray diffraction (XRD), and fibre/fibre frictional force basis as described herein method measure.
| Sample | Matrix polymer | Spinning | Draw ratio | The finish type | Fiber dtex | Frictional force (g) | Degree of crystallinity (%) | Bulkiness cm 3/g | Elasticity % | |||||
| Finish | Dtex | Stretch | Spray | ????DSC | ????XRD | Fiber | ??NW | Fiber | ??NW | |||||
| ??1 | ?PPH?7059 | ??GF18 | ????8.4 | ??1∶1.45 | ??GF18 | ??- | ????6.7 | ????- | ????53 | ????49 | ????57 | ??28 | ??46 | ??86 |
| ??2 | ?PPH?7059 | ??GF602-c | ????16 | ??1∶2.8 | ??GF602-c | ??- | ????6.7 | ????625 | ????56 | ????64 | ????57 | ??22 | ??46 | ??86 |
| ??3 | ?PPH?7059 | ??GF602-c | ????16 | ??1∶2.8 | ??7490-FILL | ??PP920 | ????6.7 | ????405 | ????58 | ????72 | ????41 | ??64 | ??55 | ??73 |
| ??4 | ?HA?840?R | ??GF602-c | ????16 | ??1∶2.8 | ??GF602-c | ??- | ????6.7 | ????629 | ????62 | ????69 | ????66 | ??30 | ??43 | ??79 |
| ??5 | ?HA?840?R | ??GF602-c | ????16 | ??1∶2.8 | ??7490-FILL | ??PP920 | ????6.7 | ????379 | ????61 | ????77 | ????48 | ??65 | ??49 | ??74 |
| ??6 | ?PPH?7059 | ??GF602-c | ????11 | ??1∶2 | ??GF602-c | ??- | ????6.7 | ????781 | ????57 | ????57 | ????- | ??29 | ??- | ??83 |
| ??7 | ?HA?840?R | ??GF602-c | ????11 | ??1∶2 | ??GF602-c | ??- | ????6.7 | ????704 | ????60 | ????60 | ????- | ??38 | ??- | ??84 |
| ??8 | ?HA?840?R | ??GF602-c | ????16.1 | ??1∶4 | ??7490-FILL | ??PP920 | ????6.7 | ????608 | ????68 | ????68 | ????58 | ??79 | ??47 | ??75 |
| ??9 | ?PPH?7059 | ??GF602-c | ????7.2 | ??1∶1.32 | ??7490-FILL | ??PP920 | ????6.7 | ????275 | ????56 | ????56 | ????32 | ??NA | ??53 | ??NA |
| ??10 | ?HA?840?R | ??GF602-c | ????7.2 | ??1∶1.32 | ??7490-FILL | ??PP920 | ????6.7 | ????407 | ????62 | ????62 | ????37 | ??NA | ??56 | ??NA |
| ??PET | ????6.7 | ????78 | ??104 | ??42 | ????74 | |||||||||
Table 1: data are summarized
Attention: use sample 1 (conventional PPH 7059 matrix polymers, no nucleated polymer and conventional spinning oil, Silastol GF18) as a reference.
Table 1 shows, the type that the inventor surprisingly finds the type of matrix polymer and spinning oil is important with respect to the bulkiness and the elasticity of fiber and nonwoven fabric.
The trend that reflects in the data by table 1 shows that the fiber that applies Synthesin 7490 FILL in drawing process has the fibre/fibre frictional force lower than the fiber that applies Silastol GF602-c therein.When with sample number 2 and 4 and sample 3 and 5 relatively the time, this effect is more obvious.
In addition, compare with the fiber that applies Synthesin 7490 FILL in drawing process, the fiber that applies SilastolGF602-c has the bulkiness of improvement (the fiber bulkiness is opposite with the nonwoven fabric bulkiness).When with the sample number in the table 12 and 4 and sample 3 and 5 relatively the time, make this effect more obvious.
Compare with the fiber that is prepared by PPH7059 (seedless polypropylene homopolymer), the fiber that is prepared by AdstifHA840R (nucleation polypropylene homopolymer) has higher degree of crystallinity.Sample number 2 in the comparison sheet 1 and 4 and sample number 3 and 5, this effect is more obvious.
For applying identical finish, to compare with the fiber for preparing by PPH7059 (seedless polypropylene homopolymer), the fiber that is prepared by AdstifHA840R (nucleation polypropylene homopolymer) has the bulkiness of improvement.Sample number 4 in the comparison sheet 1 and sample number 2 and comparative sample numbers 5 and sample number 3, this effect is more obvious.
Compare with the fiber with low draw ratio, the fiber with high draw ratio produces high fiber bulkiness and high nonwoven fabric bulkiness.In order to obtain this conclusion, be necessary to use the polymer and the spinning oil of same type, as must be identical for comparison condition.When relatively, for example sample in the table 15,8 and 10 o'clock, this trend is more obvious.
Compare with the nonwoven fabric that only applies Silastol GF602-c therein, have the bulkiness of improvement based on the nonwoven fabric of the fiber that applies Synthesin 7490FILL.When with the sample number in the table 13 and 5 and sample 2 and 4 relatively the time, this effect is more obvious.
With based on comparing by the nonwoven fabric of the fiber of PPH7059 (seedless polypropylene homopolymer) preparation, have the bulkiness of improvement based on nonwoven fabric by the fiber of AdstifHA840R (nucleation polypropylene homopolymer) preparation.When the sample number in the table 14 was compared with sample number 3 with sample number 2 comparisons with sample number 5, this effect was more obvious.
Embodiment 2
Bulkiness that fiber and nonwoven fabric obtained and elasticity have been provided in the table 2.Use 30% ES-C bicomponent fiber, under 134～140 ℃ of incorporation ranges with the combination of nonwoven fabric hot-blast stove.Service test number 1 is as benchmark, as therein not with the conventional homopolymers (PPH 7059 matrix polymers) of nucleator.
| Tested number | Bulkiness cm 3/g | Elasticity % | ||
| Fiber | Nonwoven fabric | Fiber | Nonwoven fabric | |
| ????1 a) | ????57 | ????28 | ????46 | ????86 |
| ????2 b) | ????41 | ????67 | ????55 | ????76 |
| ????3 c) | ????66 | ????46 | ????43 | ????87 |
| ????4 d) | ????48 | ????74 | ????49 | ????76 |
| a)PPH 7059 matrix polymers (no nucleation), spinning oil: GF602-c, degree of crystallinity (X ray)=64% b)PPH 7059 matrix polymers (no nucleation), spinning oil: Synthesin 7490 FILL, degree of crystallinity (X ray)=72% c)AdstifHA840R matrix polymer (nucleation), spinning oil: GF602-c, degree of crystallinity (X ray)=69% d)Adstif HA840R matrix polymer (nucleation), spinning oil: Synthesin 7490 FILL, degree of crystallinity (X ray)=77% | ||||
Table 2 provides maximum bulkiness to selected fiber and nonwoven fabric
As shown in Table 2, should note sample number 1 and 4 especially.Sample number 1 comprises conventional PPH 7059 matrix polymers (no nucleation) and conventional spinning oil GF602-c, and sample number 4 comprises the Adstif HA840R matrix polymer and the Synthesin 7490 FILL spinning oils of nucleation.Compare these two kinds of samples, deducibility goes out the bulkiness value that sample number 4 demonstrates nonwoven fabric, and it meets 164% increase (28cm roughly
3/ g-74cm
3/ g).According to the present invention, and under the situation that is not limited to any specific theory, the surprising sudden change that it is believed that bulkiness produces with Synthesin 7490 FILL spinning oils by being used in combination nucleation homopolymers (AdstifHA840R), this produces the fiber of highly crystalline and rigidity, described combination also produces the fiber with shockingly low fibre/fibre frictional force, its provide conversely advantageously the nonwoven fabric of high bulkiness (as, the fibre/fibre mobile phase is to " freedom ").
Embodiment 3
Provided in the table 3 in conjunction with temperature bulkiness and flexible influence.For the nucleation AdstifHA840R matrix polymer that comprises Synthesin 7490FILL spinning oil, best bulkiness is to be 140 ℃ of acquisitions down in conjunction with temperature.
| Bulkiness cm 3/g | Elasticity % | |||||||
| Tested number | ??134℃ | ??136℃ | ?138℃ | 140℃ | ?134℃ | ?136℃ | ?138℃ | 140℃ |
| ????1 a) | ????27 | ????23 | ????22 | ????28 | ????82 | ????86 | ????86 | ????83 |
| ????2 b) | ????51 | ????56 | ????64 | ????67 | ????76 | ????75 | ????73 | ????75 |
| ????3 c) | ????46 | ????32 | ????30 | ????25 | ????78 | ????82 | ????79 | ????87 |
| ????4 d) | ????57 | ????57 | ????65 | ????74 | ????75 | ????76 | ????74 | ????75 |
| a)PPH 7059 matrix polymers (no nucleation), spinning oil: GF602-c, degree of crystallinity (X ray)=64% b)PPH 7059 matrix polymers (no nucleation), spinning oil: Synthesin 7490 FILL, degree of crystallinity (X ray)=72% c)AdstifHA840R matrix polymer (nucleation), spinning oil: GF602-c, degree of crystallinity (X ray)=69% d)AdstifHA840R matrix polymer (nucleation), spinning oil: Synthesin 7490 FILL, degree of crystallinity (X ray)=77% | ||||||||
Table 3 in conjunction with temperature to bulkiness and flexible influence
Claims (34)
1. based on the fiber of polyolefin polymer, described fiber has at least one and is selected from following characteristic:
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxanes aqueous emulsion with effective content of at least 25%;
Iii) draw ratio was at least 1: 1.5; With
Iv) fibre crystallinity is at least 50%.
2. according to the fiber of claim 1, wherein fibre/fibre frictional force is no more than 500g, preferably is no more than 400g.
3. according to the fiber of claim 1, wherein fibre/fibre frictional force is 200～1000g, as 200～800g, and preferred 200～600g, more preferably 200～500g, most preferably 200～400g.
4. according to each fiber of claim 1～3, wherein spinning oil mainly comprises the polysiloxanes aqueous emulsion, the effective content as at least 30%, preferred at least 35% effective content, according to appointment 40%.
5. according to the fiber of claim 4, wherein spinning oil is 2～15% in concentration, applies as 5～10% times.
6. according to each fiber of claim 4～5, wherein with respect to fiber, the level of spinning oil is 0.2～1%wt/wt, and is preferred 0.3～0.85% as 0.25～0.9%, more preferably 0.35～0.85%.
7. according to each fiber of aforementioned claim, wherein be at least 55%, as at least 60% by the fibre crystallinity that DSC or XRD surveyed.
8. according to each fiber of aforementioned claim, wherein polyolefin polymer is a nucleated polymer.
9. according to each fiber of aforementioned claim, wherein polyolefin polymer is a nucleated polymer, wherein nucleator is selected from talcum, aliphatic series or aromatic carboxylic acid's slaine, the branched polymer that contains the ingotism side chain and mineral, as chalk, gypsum, clay kaolin, mica and silicate, with based on D-D-sorbite and 1,3-2, the compound of 4-pair-(3,4-dimethyl benzene methylene)-D-D-sorbite.
10. according to the fiber of claim 9, wherein nucleator is a talcum.
11. according to the fiber of claim 9, wherein polyolefin polymer is the nucleated polymer that adopts the talcum formation nucleus of 5000～10000ppm.
12. each fiber according to aforementioned claim, wherein polyolefin is selected from the homopolymers and the copolymer of isotactic or syndiotactic polypropylene homopolymer, monoolefine, as ethene, propylene, alpha-olefin, 4-methyl-1-pentene all-and altogether-polymers and blend, linear polyethylene, high density polyethylene (HDPE), low density polyethylene (LDPE) and linear low density of polyethylene and blend thereof.
13. according to the fiber of claim 9, wherein polyolefin is selected from homopolymer polypropylene and homopolymer polyethylene,
14. according to the fiber of claim 9, wherein polyolefin is a homopolymer polypropylene.
15. according to the fiber of claim 1, its bulkiness that has is at least about 30cm
3/ g, at least about 35cm
3/ g is as at least about 40cm
3/ g.
16. according to each fiber of aforementioned claim, wherein draw ratio be about 1: 2～1: 8,1: 2 according to appointment～1: 6, preferred 1: 2～1: 5.
17. according to each fiber of aforementioned claim, the ST dtex that it has is 2～20 dtexs, as 2～10 dtexs, typically is 3～9 dtexs, typically is 5～8 dtexs most.
18. based on polyolefinic fiber, it is about 40% that its elasticity that has is at least, and according to appointment 42%.
19. according to each fiber of aforementioned claim, wherein the flexural modulus that has of polyolefin is at least 1500MPa.
20. according to each the fiber based on polyolefin polymer of claim of aforementioned claim, described fiber has at least two and is selected from
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxane emulsion;
Iii) draw ratio was at least 1: 1.5, and final fibre fineness is 2～10 dtexs.
Iv) fibre crystallinity is at least 50%;
V) polyolefin polymer is a nucleated polymer;
Vi) the flexural modulus that has of polyolefin is at least the characteristic of 1500MPa.
21. according to each the fiber based on polyolefin polymer of claim of aforementioned claim, described fiber has at least two and is selected from following characteristic:
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxane emulsion;
Iii) draw ratio was at least 1: 1.5, and final fibre fineness is 2～10 dtexs;
Iv) fibre crystallinity is at least 50%;
V) polyolefin polymer is a nucleated polymer.
22. according to each the fiber based on polyolefin polymer of claim of aforementioned claim, wherein polyolefin polymer is a nucleated polymer, and described fiber has
I) fibre/fibre frictional force is no more than 600g;
The spinning oil that ii) mainly comprises polysiloxane emulsion;
Iii) draw ratio was at least 1: 1.5, and final fibre fineness is 2～10 dtexs,
Iv) fibre crystallinity is at least 50%.
23. nonwoven cloth material by defined polyolefin-based staple fiber preparation in each of claim 1～22.
24. the nonwoven cloth material based on polyolefin-based staple fiber, wherein the bulkiness that has of nonwoven cloth material is at least 30cm
3/ g, and elasticity is at least 50%.
25. according to each nonwoven cloth material of claim 23～24, wherein the elasticity that has of nonwoven cloth material is at least 55%, as at least 60%.
26. according to each nonwoven cloth material of claim 23～25, wherein the bulkiness that has of nonwoven cloth material is at least 35%, as at least 40%, and preferably at least 45%, more preferably at least 50%, more preferably at least 55%, most preferably at least 60%.
27. a method for preparing polyolefin-based fiber, described method be characterised in that use nucleated polymer, draw ratio be at least 1: 1.5, final fibre fineness is 2～10 dtexs usually, and spinning oil mainly comprises polysiloxane emulsion.
28. according to the method for claim 27, wherein polymer is selected from polyethylene and polypropylene.
29. according to each method of claim 27～28, wherein draw ratio was 1: 2～1: 8, as 1: 2～1: 6.
30. according to each method of claim 27～29, wherein spinning oil mainly comprises having at least 25% effective content, the effective content as at least 30%, preferred at least 35% effective content, the aqueous emulsion of 40% polysiloxanes according to appointment.
31., be 2～15% in concentration wherein, apply as 5～10% times with spinning oil according to the method for claim 30.
32. according to each method of claim 30～31, wherein with respect to fiber, the spinning oil level is 0.2～1%wt/wt, and is preferred 0.3～0.85% as 0.25～0.9%, more preferably 0.35～0.85%.
33. a method for preparing nonwoven cloth material, it comprise use as each of claim 1～22 in defined fiber or use according to the prepared fiber of method in each of claim 27～32.
34. according to the method for claim 33, wherein fiber is 130～150 ℃ in temperature, as 132～148 ℃, preferably 134～144 ℃ of following hot-blast stove combinations.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA200201368 | 2002-09-17 | ||
| DKPA200201368 | 2002-09-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1681979A true CN1681979A (en) | 2005-10-12 |
| CN100336949C CN100336949C (en) | 2007-09-12 |
Family
ID=32010894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038220237A Expired - Fee Related CN100336949C (en) | 2002-09-17 | 2003-09-17 | Polyolefin fibres and their use in the preparation of nonwovens with high bulk and resilience |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP1540051B1 (en) |
| JP (1) | JP2005539154A (en) |
| KR (1) | KR20050057377A (en) |
| CN (1) | CN100336949C (en) |
| AT (1) | ATE346967T1 (en) |
| AU (1) | AU2003263156A1 (en) |
| CA (1) | CA2499237A1 (en) |
| DE (1) | DE60310093T2 (en) |
| DK (1) | DK1540051T3 (en) |
| WO (1) | WO2004027130A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112722A (en) * | 2018-09-03 | 2019-01-01 | 山东斯维特新材料科技有限公司 | A kind of preparation method of loft nonwoven cloth |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5718911B2 (en) * | 2010-04-30 | 2015-05-13 | 国立大学法人山梨大学 | Battery separator comprising a polyolefin nanofilament porous sheet |
| ES2452523T3 (en) * | 2010-05-11 | 2014-04-01 | Tiara-Teppichboden Ag | Synthetic fiber for an artificial grass layer |
| US20150233030A1 (en) * | 2012-08-23 | 2015-08-20 | Mitsui Chemicals, Inc. | Meltblown nonwoven fabric and uses thereof |
| JP6429893B2 (en) * | 2014-03-27 | 2018-11-28 | ポリテックス・シュポルトベレーゲ・プロドゥクシオンス・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングＰｏｌｙｔｅｘ Ｓｐｏｒｔｂｅｌａｅｇｅ Ｐｒｏｄｕｋｔｉｏｎｓ ＧｍｂＨ | Artificial lawn manufacturing method |
| JP6729916B2 (en) * | 2018-10-30 | 2020-07-29 | ポリテックス・シュポルトベレーゲ・プロドゥクシオンス・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングＰｏｌｙｔｅｘ Ｓｐｏｒｔｂｅｌａｅｇｅ Ｐｒｏｄｕｋｔｉｏｎｓ ＧｍｂＨ | Artificial grass |
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| NL295263A (en) * | 1962-07-13 | |||
| JP2818273B2 (en) * | 1990-08-13 | 1998-10-30 | 三井化学株式会社 | Molding method for syndiotactic polypropylene |
| JPH05195441A (en) * | 1992-01-20 | 1993-08-03 | Shin Etsu Chem Co Ltd | Textile-treating agent |
| US5545481A (en) * | 1992-02-14 | 1996-08-13 | Hercules Incorporated | Polyolefin fiber |
| CA2090793A1 (en) * | 1992-10-09 | 1994-04-10 | Ronald Sinclair Nohr | Nonwoven webs having improved tensile strength characteristics |
| DK24893D0 (en) * | 1993-03-05 | 1993-03-05 | Danaklon As | FIBERS AND MANUFACTURING THEREOF |
| IT1264841B1 (en) * | 1993-06-17 | 1996-10-17 | Himont Inc | FIBERS SUITABLE FOR THE PRODUCTION OF NON-WOVEN FABRICS WITH IMPROVED TENACITY AND SOFTNESS CHARACTERISTICS |
| FI101481B1 (en) * | 1995-07-03 | 1998-06-30 | Suominen Oy J W | Method for controlling the internal auxiliary and additive transport in a polymer |
| US5763334A (en) * | 1995-08-08 | 1998-06-09 | Hercules Incorporated | Internally lubricated fiber, cardable hydrophobic staple fibers therefrom, and methods of making and using the same |
| BR9707421A (en) * | 1996-02-12 | 2000-01-04 | Fibervisions As | Fibers containing particles |
| WO1998017746A1 (en) * | 1996-10-24 | 1998-04-30 | Fibervisions A/S | Polyolefin fibres and method for the production thereof |
| JP3764224B2 (en) * | 1996-10-31 | 2006-04-05 | 東レ・ダウコーニング株式会社 | Animal fiber treatment composition |
| JP3404555B2 (en) * | 1999-09-24 | 2003-05-12 | チッソ株式会社 | Hydrophilic fibers and nonwoven fabrics, processed nonwoven fabrics using them |
-
2003
- 2003-09-17 EP EP03797183A patent/EP1540051B1/en not_active Expired - Lifetime
- 2003-09-17 AU AU2003263156A patent/AU2003263156A1/en not_active Abandoned
- 2003-09-17 KR KR1020057004526A patent/KR20050057377A/en not_active Application Discontinuation
- 2003-09-17 JP JP2004536879A patent/JP2005539154A/en active Pending
- 2003-09-17 DE DE60310093T patent/DE60310093T2/en not_active Expired - Lifetime
- 2003-09-17 CA CA002499237A patent/CA2499237A1/en not_active Abandoned
- 2003-09-17 DK DK03797183T patent/DK1540051T3/en active
- 2003-09-17 CN CNB038220237A patent/CN100336949C/en not_active Expired - Fee Related
- 2003-09-17 WO PCT/DK2003/000600 patent/WO2004027130A1/en active IP Right Grant
- 2003-09-17 AT AT03797183T patent/ATE346967T1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112722A (en) * | 2018-09-03 | 2019-01-01 | 山东斯维特新材料科技有限公司 | A kind of preparation method of loft nonwoven cloth |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003263156A1 (en) | 2004-04-08 |
| JP2005539154A (en) | 2005-12-22 |
| DE60310093T2 (en) | 2007-06-28 |
| DK1540051T3 (en) | 2007-04-02 |
| EP1540051A1 (en) | 2005-06-15 |
| CA2499237A1 (en) | 2004-04-01 |
| EP1540051B1 (en) | 2006-11-29 |
| WO2004027130A1 (en) | 2004-04-01 |
| KR20050057377A (en) | 2005-06-16 |
| ATE346967T1 (en) | 2006-12-15 |
| DE60310093D1 (en) | 2007-01-11 |
| CN100336949C (en) | 2007-09-12 |
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