[go: up one dir, main page]

CN1545573A - Polyester staple fiber and nonwoven fabric composed thereof - Google Patents

Polyester staple fiber and nonwoven fabric composed thereof Download PDF

Info

Publication number
CN1545573A
CN1545573A CNA03800884XA CN03800884A CN1545573A CN 1545573 A CN1545573 A CN 1545573A CN A03800884X A CNA03800884X A CN A03800884XA CN 03800884 A CN03800884 A CN 03800884A CN 1545573 A CN1545573 A CN 1545573A
Authority
CN
China
Prior art keywords
polyester
staple fiber
nonwoven fabric
fiber
type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA03800884XA
Other languages
Chinese (zh)
Other versions
CN1320180C (en
Inventor
合田裕宪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Frontier Co Ltd
Original Assignee
Teijin Fibers Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teijin Fibers Ltd filed Critical Teijin Fibers Ltd
Publication of CN1545573A publication Critical patent/CN1545573A/en
Application granted granted Critical
Publication of CN1320180C publication Critical patent/CN1320180C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as 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
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43828—Composite fibres sheath-core
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/24—Polyesters
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Multicomponent Fibers (AREA)
  • Artificial Filaments (AREA)
  • Paper (AREA)

Abstract

Polyester staple fibers containing a polymeric blend of 0.5 to 15 mass % of a polyolefinic polymer with a matrix polyester polymer, 50% or more of the surface area of each fiber being formed by the polymeric blend, are useful for forming a nonwoven fabric with soft hand and a uniform texture by using various web-forming methods, for example, an air laid, wet laid or carding method.

Description

Polyester-type staple fiber and contain the nonwoven fabric of this fiber
Technical field
The present invention relates to the polyester-type staple fiber and contain the nonwoven fabric of this fiber.
Background technology
The polyester-type staple fiber has superior mechanical performance and chemical resistance, therefore is widely used for nonwoven fabric.Yet, to compare with the nonwoven fabric that contains nylon or polyolefin staple fiber, the nonwoven fabric that contains normal polyester type staple fiber is disadvantageous, make a sound because it undesirable loud, high-pitched sound that creaks occurs when touching, and pleasant softness is unsatisfactory.
Known can passing through produces nonwoven fabric by staple fiber someway, fabric is to be formed by combing method, damp process (wet laid) or air web method (air-laid) by staple fiber in this method, make the staple fiber in the fabric entangled to each other with acupuncture or water jet process or Hydroentangled method (hydro-intangling) then, or under pressure, carry out hot adhesion (heat-bonded) with calender or embossing machine, or use the adhesive agent emulsion impregnate fabric, and be dried to mutual chemical bond takes place between the staple fiber in the fabric.In said method, when using air web manufactured fabric, compare with nylon or polyolefin staple fiber, the shortcoming of polyester-type staple fiber is that the slickness of this polyester-type staple fiber is poor, and when it is rubbed wrinkle, the fiber of resulting wrinkle is easy to occur the very high gauffer amount of percentage, and the fiber under surrounding air launches poor performance, is very difficult by the uniform nonwoven fabric of polyester-type staple fiber production quality therefore.Low and degree of crystallinity is low when degree of orientation, when being preferably used as non-stretching (undrawn) polyester fiber of binder fiber or copolymerization of polyester fiber and being used to produce nonwoven fabric, this trend just is realized more significantly.Certain limitation is arranged during therefore, by the uniform nonwoven fabric of fabric production quality that forms by the air web method with binder fiber especially 100% binder fiber.Equally, even adopt combing method or damp process, be unusual difficulty from having low surface flatness and therefore demonstrating the uniform nonwoven fabric of polyester-type staple fiber production quality that relatively poor fiber launches performance.
When adopting combing method when binder fiber makes fabric, above-mentioned trend has just further been strengthened.
The difficulty of producing nonwoven fabric is seemingly caused by the high rigidity of polyester-type staple fiber and the friction between each polyester-type staple fiber.For addressing this problem, a kind of method is disclosed in the document that Japanese unexamined patent publication number is 48-1480, this method use dimethyl silica hydride compounds or amine modified siloxane compound are applied to the surface of polyester fiber, make the compound crosslink of coating by heating.Yet when use made the polyester-type staple fiber of handling form fabric as combing method, the fibre-fibre friction of the disclosed staple fiber of this Japan's open source literature was very little, therefore shows the fibre matting deficiency, and resulting fabric is easy to break.In this case, when producing fabric by damp process, because the staple fiber in this Japan's open source literature is not hydrophilic, this fiber can't evenly scatter in water.And, when adopting the air web method to produce fabric, owing to produced static on the staple fiber in this Japan's open source literature, in resulting fabric, this staple fiber skewness.In addition, when the fiber in this Japan's open source literature was used as binder fiber, the surface conditioning agent that is coated in polyester-type staple fiber surface formed the barrier of opposing fiber hot adhesion.
Summary of the invention
The invention solves problems of the prior art.That is, an object of the present invention is to provide polyester-type staple fiber and the nonwoven fabric that contains this polyester-type staple fiber, this polyester-type staple fiber can make nonwoven fabric realize soft hand feeling and even texture.And this invention is intended to provides the nonwoven fabric of being produced by fabric, and this fabric is made by the air web method by the polyester-type staple fiber, and this fabric has the performance of above-mentioned excellence.
The present inventor finds the polyester-type staple fiber, when the part of its outer surface be by polyester and with mix and be dispersed in polyolefinic polyblend in the polyester when making, friction between staple fiber suits, in the time of in the polyolefin content in the fiber is in a specific scope, can obtain not only soft but also the uniform nonwoven fabric of quality.
Promptly, above-mentioned purpose can reach by the polyester-type staple fiber that the present invention contains polymeric blends, this polyblend comprises the mixing of 0.5-15 quality % and is dispersed in polyolefin polymer in the substrate polyester polymer, 50% or more fiber surface form by polymeric blends.
In polyester-type staple fiber of the present invention, polyolefin polymer preferably contain be selected from following at least a: polyethylene, polypropylene, ethylene-propylene copolymer and polyethylene and ethylene copolymers and polypropylene copolymer, the wherein at least a ethylenically unsaturated monomers that is different from ethene and propylene be block copolymerization or graft copolymerization.
In polyester-type staple fiber of the present invention, the substrate polyester polymer is preferably selected from polyalkylene terephthalates and polyalkylene terephthalates-isophthalic acid ester (polyalkyleneterephthalate-isophthalate) copolymer.
Polyester-type staple fiber of the present invention preferably has 20% or littler degree of crystallinity or have 0.05 or littler birefringence.
Polyester-type staple fiber of the present invention preferably has the conjugated structure at center (core-in-sheath) in the concentric or eccentric shell, and its mesochite (sheath) part is formed by polyblend.
The preferred fibre length of polyester-type staple fiber of the present invention is 2-30mm, and Z font or ω type gauffer are 3-13 gauffer/25mm, and the gauffer percentage composition is 3-15%.
The preferred fibre length of polyester-type staple fiber of the present invention is 30-200mm, and Z font or ω type gauffer are 5-30 gauffer/25mm, and the gauffer percentage amounts is 3-30%.
Nonwoven fabric of the present invention (1) contains aforesaid multiple polyester-type staple fiber, is made by the fabric forming method of air web.
Nonwoven fabric of the present invention (1) preferably contains 5% or not deploying type (non-open) fiber still less.
Nonwoven fabric of the present invention (2) contains aforesaid multiple polyester-type staple fiber, is made by wet type fabric forming method.
Nonwoven fabric of the present invention (3) contains aforesaid multiple polyester-type staple fiber, is made by the carded webs forming process.
Nonwoven fabric of the present invention (1), (2) or (3) preferably have 70mm or littler bending resistance, and this bending resistance is measured by cantilever method.
Preferred forms of the present invention
Staple fiber of the present invention is the polyester-type staple fiber that is made of polyblend of 50% surface area wherein, and this polyblend contains and mixes and be dispersed in polyolefin polymer in the substrate polyester polymer.
Be applicable to that polyester polymers of the present invention comprises for example polyester of aromatic dicarboxilic acid and aliphatic glycol, as polyalkylene terephthalates, specifically has poly terephthalic acid ethylidene ester, poly terephthalic acid trimethylene ester and poly terephthalic acid butylidene ester; Poly-naphthoic acid alkylene ester (polyalkylene naphthalate) specifically has poly-naphthoic acid ethylidene ester; The polyester of cycloaliphatic dicarboxylic acids and aliphatic glycol specifically has polyalkylene cyclohexane-dicarboxylic ester; The polyester of aromatic dicarboxilic acid and cycloaliphatic glycol specifically has poly-cyclohexanedimethanol terephthalate; The polyester of aliphatic dicarboxylic acid and aliphatic glycol specifically has polyethylene succinate, poly-succinic Aden ester, polyethylene adipate and poly-adipic acid butylidene ester; And the polyhydroxycarboxyliacid acid ester, poly-acetyl cellulose (polyactate ester) and poly-Para Hydroxy Benzoic Acid ester are specifically arranged.Be applicable to that polyester of the present invention can be a copolyesters, it contains at least a following combined polymerization component that is selected from: acid constituents, as M-phthalic acid, phthalic acid, adipic acid, decanedioic acid, α, β-(4-carboxyl phenoxy group) ethane, 4,4-dicarboxyl phenyl, 5-sulfoisophthalic acid sodium, 2,6-naphthalenedicarboxylic acid and 1, the ester of 4-cyclohexane cyclohexanedimethanodibasic and above-mentioned acid; Diol component, as diethylene glycol (DEG), 1, ammediol, 1,4-butanediol, 1,6-hexylene glycol, neopentyl glycol, 1,4 cyclohexane dimethanol and poly alkylene glycol.The component of these combined polymerizations can be to be selected from the compound with three or more carboxylic groups or oh group, and as pentaerythrite, trimethylolpropane, trimellitic acid, 1,3, the 5-benzenetricarboxylic acid is so that resulting copolyesters class has side chain.In the present invention, above-mentioned polyester polymer (copolymer) can use separately or two or more mixture is united use.
Only otherwise influence effect of the present invention, polyester polymer and polyolefin polymers can contain one or more additives, the pigment of brightener, stabilizing agent, fire retardant, flame retardant aid, ultra-violet absorber, antioxidant and different color.
At the polyblend that is used for polyester-type staple fiber of the present invention, quality based on polyblend, mixing and be dispersed in the content of the polyolefin polymer in the substrate polyester polymer must be in 0.5-15 quality % scope, preferably at 1-10 quality %, more preferably 2-7 quality %, further preferred 2-5 quality %.If the content of polyolefin polymer is less than 0.5 quality %, just can't reach purpose of the present invention, promptly can't prepare the nonwoven fabric that contains the polyester-type staple fiber, has soft feel and even texture.And, if the content of polyolefin polymer greater than 15 quality %, therefore not only above-mentioned effect is that saturated (saturated) maybe can not reach, and the fibre forming decreased performance of resulting polyblend, can't obtain target staple fiber of the present invention.
In polyester-type staple fiber of the present invention, fiber surface 50% or more, preferred 70% or more, more preferably 90%-100% must be formed by polyblend.If the surface that is formed by polyblend is less than 50%, resulting nonwoven fabric demonstrates the flexibility deficiency and the quality uniformity is unsatisfactory.The staple fiber that satisfies above-mentioned requirements comprises the staple fiber that the polyblend by 100 quality % forms, and wherein 50% or more conjugation staple fibers that is formed by polyblend of fiber surface.The conjugation staple fiber comprises centre type in centre type in the concentric shell, the eccentric shell, the conjugation staple fiber of type and fabric of island-in-sea type and part pie type shoulder to shoulder.The present invention preferably adopts centre type conjugation staple fiber in the concentric and eccentric shell, this conjugate fibre 70% or more, more preferably 100% fiber surface is to be formed inner the branch by the shell of polyblend.
Polyester-type staple fiber of the present invention can be the fiber of hollow or the fiber of non-hollow.The shape of the cross section of polyester-type staple fiber of the present invention is not limited only to circle, also can be selected from following irregularly shaped, as oval, Multiblade as three leaves to eight blade profiles, and polygon such as triangle are to octagonal.
Birefringence be 0.05 or lower or degree of crystallinity be 20% or lower polyester-type staple fiber in obviously embody effect of the present invention.
Birefringence be 0.05 or lower or degree of crystallinity be 20% or lower traditional polyester-type staple fiber in, interfibrous friction has the trend of raising, and it is unsatisfactory that therefore resulting nonwoven fabric may show the quality uniformity that feel descends, fiber launches decreased performance and fiber.As if this trend more remarkable in the low fiber of orientation (non-stretching fiber), this fiber is by making polyalkylene terephthalates, and particularly the polyalkylene terephthalates of M-phthalic acid-copolymerization is carried out melt spinning and made under 2000m/ minute or lower low derivation speed.In non-stretching polyalkylene terephthalates fiber, in the fiber that forms by poly terephthalic acid ethylidene ester, this trend highly significant, this poly terephthalic acid ethylidene ester degree of crystallinity is low, and has and based on the combined polymerization poly terephthalic acid ethylidene ester of the M-phthalic acid generation combined polymerization of acid constituents total mole number 5-50 mole %.Above-mentioned polyester-type staple fiber can carry out hot adhesion mutually under pressure, can be used for the binder fiber of nonwoven fabric.When above-mentioned polyester polymers was used as the matrix polymer of polyester-type staple fiber of the present invention, resulting polyester type staple fiber can not cause the problems referred to above as binder fiber.Resulting polyester type staple fiber of the present invention to production have needed soft feel and even texture nonwoven fabric also be useful.
For the thickness of single polyester-type staple fiber of the present invention without limits.Usually, the thickness of polyester-type staple fiber of the present invention preferably divides the scope of Tekes at 0.01-500.
Polyester-type staple fiber of the present invention can be by for example following method production.The fused mass of the polyblend of polyester polymers and polyolefin polymer is extruded by (fusing-) spinning head, this spinning head has the spinneret orifice of a plurality of routines (fusing-) device for spinning, make cold air blow to the logistics of fusion and draw, cooling and the thread logistics of extruding of solidifying melt derive the silk that solidifies with 100-2000m/ minute speed and obtain non-stretching polyester mutifilament yarn.
The fused mass of polyblend prepares by following method: the fused mass of the fused mass of mixed polyester polymer and polyolefin polymer in static mixer or dynamic mixer, or with the desirable quality ratio mixed polyester polymer and the particle of polyolefin polymer, with (fusing-) extruder mixture is carried out (fusing-) and mediate, then resulting mixed melting thing is dosed into (fusing-) spinning head.
In the process of producing non-stretching polyester-type conjugated yarn, carry out above-mentioned identical step, but the fused mass of polyblend and the fused mass of mylar are dosed into (fusing-) spinning head respectively, the fused mass of polyblend and mylar in spinning head in conjunction with the conjugated yarn between forming mutually, the surface of this conjugated yarn 50% or manyly form by polyblend.
Is to stretch with desirable rate of extension in 70-100 ℃ the hot water or in temperature is 100-125 ℃ steam resulting non-stretching silk in temperature, randomly the drawn yarn that obtains is rubbed wrinkle, purpose according to purposes and resulting staple fiber adopts cover finish (finish oil) oiling, and drying is also loosened.Resulting silk is cut into the staple fiber with the fibre length that needs, obtain target polyesters type staple fiber.In these steps, oil agent can contain the silicone compounds of this type, and its content does not hinder and reaches purpose of the present invention.Obtaining birefringence of the present invention with above-mentioned identical method step is 0.05 or lower, or degree of crystallinity is 2% or lower polyester-type staple fiber, but this method has been omitted stretching step, the cover finish is applied on the silk that does not stretch, the undrawn yarn of oiling is the dry regular hour at room temperature, and the length of this time can not cause that the degree of crystallinity of dry silk surpasses 20%.Being produced by polyester-type staple fiber of the present invention in the process of nonwoven fabric, preferably as described below, the length of regulating staple fiber produces gauffer according to the method that is formed fabric by fiber.
For example, when using the air web method to form fabric, preferably the length adjustment with staple fiber arrives 2-30mm, more preferably 3-20mm.By being adjusted to, fibre length is not less than 2mm, needed staple fiber can carry out industrial production under gratifying technology stability condition, length by controlling fiber is not more than 30mm, and the fiber that resulting staple fiber demonstrates raising launches performance and high anti-fibre agglomerates performance.The polyester-type staple fiber can be that the fiber of wrinkle can not be the fiber of wrinkle also, decides on the purposes of gained nonwoven fabric.That is, when the target nonwoven fabric must have high-loft, staple fiber is the fiber of wrinkle preferably.Must improve when the target nonwoven fabric launches performance for the fiber of jet-stream wind, and must be improved by the homodisperse performance of aerojet the time, staple fiber can not have wrinkle.When the staple fiber of gauffer is used for fabric formation air web method, the preferred 3-13 of gauffer number gauffer/25mm, the gauffer percentage composition is 3-15%.Be no more than 13 gauffer/25mm when regulating the gauffer number, the gauffer percentage composition is no more than at 15% o'clock, and resulting nonwoven fabric demonstrates gratifying fiber and launches performance when air flows.Have less gauffer number and gauffer percentage composition easily because polyester-type staple fiber of the present invention is compared with traditional polyester-type staple fiber, adjusting gauffer number and gauffer percentage composition are easy in above-mentioned scope.For making polyester-type staple fiber of the present invention have suitable bulking intensity, preferably regulate gauffer number and gauffer percentage composition and be respectively and be no less than 3 gauffer/25mm and be no less than 3%.The mode of gauffer is preferably plane Z font or the ω type that planar forms, rather than three-dimensional spiral shape gauffer mode, and this is because the fiber expansion performance of the staple fiber of plane Z font or ω type wrinkle is higher than the staple fiber of spirality wrinkle.
As above-mentioned adjusting gauffer number and gauffer percentage composition, can make the content of the non-extensibility staple fiber in the fabric that obtains by the air web method can be reduced to 5 quality % or still less.
When using wet type fabric forming method to produce the fabric of nonwoven fabric, because above-mentioned reason, the fibre length of polyester type staple fiber is 2-30mm, more preferably 30-20mm preferably.Staple fiber can be crisp or not have gauffer.Promptly on staple fiber, give gauffer according to the purposes and the purpose of target nonwoven fabric.Yet consider the distributing homogeneity that is dispersed in the staple fiber in the staple fiber aqueous slurry in the wet type fabric forming method, for the not preferred crisp staple fiber of wet type fabric forming method.
When using carded webs forming process productive target non-woven fabrics fabric, the length of polyester-type staple fiber preferably is adjusted to 30-200mm, more preferably 35-150mm, further preferred 40-100mm.Fibre length is no more than the fracture that 30mm could prevent or reduce the gained fabric, and this fracture is because the entanglement deficiency of staple fiber between mutually causes.Fibre length is no more than the quality uniformity that 200mm can improve the expansion performance of gained staple fiber on carding machine and improve the gained fabric.
For improving the transmission performance of transmitting staple fiber by carding machine, preferably use crisp staple fiber.The gauffer number and the percentage composition of preferred staple fiber are respectively 5-30 gauffer/25mm and 3-30%.Regulate gauffer number and percentage composition no more than 30 gauffer/25mm and no more than 30% respectively, the expansion performance that resulting polyester type staple fiber is demonstrated on carding machine, the gained fabric demonstrates satisfied quality uniformity.Regulate gauffer number and percentage composition and be no less than 5 gauffer/25mm respectively and be no less than 3%, can prevent or reduce resulting fabric and rupture, this fracture is because the entanglement deficiency of staple fiber between mutual causes.The mode of gauffer can be conventional plane Z font or ω type or three-dimensional spiral shape node.
The nonwoven fabric that contains polyester-type staple fiber of the present invention has soft touch sense and good hand feeling, can demonstrate 700mm or littler bending resistance, and bending resistance is represented fabric softness, is measured by cantilever method.
Nonwoven fabric of the present invention comprises the nonwoven fabric and the nonwoven fabric laminate of the polyester-type staple fiber of the present invention that mixes with non-polyester-type staple fiber of the present invention, this laminate contains at least one nonwoven layer that contains polyester-type staple fiber of the present invention and at least one additional nonwoven layer that contains non-staple fiber of the present invention, and they are laminated together mutually.
Specifically be, only the nonwoven fabric itself that obtains from polyester-type staple fiber of the present invention demonstrates the soft feel that specific being different from contains the nonwoven fabric of normal polyester type staple fiber, therefore is preferred for multiple use.
In polyester-type staple fiber of the present invention, the outer surface of single staple fiber 50% or mostly be to form by specific polyblend, this polyblend is that the polyolefin polymer of polyester polymers and 0.5-15 quality % is formed.These characteristics of the present invention descend the fibre-fibre friction of resulting staple fiber, and have therefore improved fiber and launched performance, so the gained nonwoven fabric has soft hand feeling and quality uniformity height.
The effect mechanism of polyester-type staple fiber of the present invention and nonwoven fabric is also not fully aware of.Yet, suppose be used for polyblend of the present invention, polyolefin polymer and polyester polymers are incompatible, therefore when an amount of polyolefin polymer mixes and is dispersed in the matrix that is made of polyester polymers, polyolefin polymer suspends with the form on the island in a plurality of oceans that formed by the substrate polyester polymer, when forming single fiber with polyblend, the part on island appears at least a portion of outer surface of each single fiber, make outer surface coarse, therefore resulting single fiber mainly contacts with each other at the bossing of fiber outer surface, and then the coefficient of friction between mutually is low.
Embodiment
Further the present invention is launched explanation with the following examples.
In embodiment and comparing embodiment, the test event and the measuring method of gained staple fiber and nonwoven fabric are as follows.
(a) fiber thickness
According to JIS l 1015-1992,7.5.1, method A measures fiber thickness.
(b) fibre length
According to JIS L 1015-1992,7.4.1, direct method (method C) is measured fibre length.
(c) number of gauffer and percentage composition
According to JIS L 1015-1992,7.12, measure the number and the percentage composition of the gauffer of crisp staple fiber.
(d) inherent viscosity of polyester polymers
Under 35 ℃, in o-chlorphenol, measure the inherent viscosity ([η]) of polyester polymers.
(e) melt index of polyester polymers or polyolefin polymer (MFR)
Measure the melt index of polyester polymers or polyolefin polymer for 4 times in condition according to JIS K 7210.
(f) glass transition temperature of polyester polymers or polyolefin polymer (Tg) and melt temperature (Tm)
Use glass transition temperature (Tg) and the melt temperature (Tm) of differential scanning calorimetry (DSC) (model: DSC-7, Parkin-Elmer Co. makes) with 20 ℃/minute determination of heating rate polyester polymers or polyolefin polymer.
(g) degree of crystallinity of fiber
By measuring fibre density ρ (g/cm at 25 ℃ with density gradient column 3), this density gradient column is equipped with the mixture of normal heptane and carbon tetrachloride, calculates the degree of crystallinity of fiber from the density calculation ρ of gained fiber according to establishing an equation down.
xc＝ρc(ρ-ρa)/ρ(ρc-ρa)
Wherein xc represents the degree of crystallinity of fiber, and % represents with quality, and ρ c represents the crystalline density of poly terephthalic acid ethylidene ester, i.e. 1.455g/cm 3, ρ a represents the amorphous state density of poly terephthalic acid ethylidene ester, i.e. 1.335g/cm 3, ρ represents fibre density.
(h) birefringence of fiber (Δ n)
As Textile Institute Butter Worths, Manchester﹠amp; W.E.Morton that London publishes and J.W.S.Hearle are at " Physical Properties of Textile Fibers ", the 524-532 page or leaf, 22.2.1 birefringence and refractive index are disclosed to 22.2.3 birefringence determination method, with the birefringence (Δ n) of delay method mensuration fiber, this method uses bromonaphthalene as steeping liq and Belec compensator.
(i) percentage composition (u) of the fiber that does not launch
Obtain the fibre agglomerates that does not launch by the 10g fabric that the air web method is produced, measure the quality (x) of obtained fibre agglomerates, calculate the percentage composition (u) of the fiber that does not launch in the fabric according to establishing an equation down.
u(％)＝x/10×100
Wherein x represents the quality of the fibre agglomerates that does not launch obtained from fabric, and u represents the percentage composition of the fiber that do not launch in the fabric.
(j) bending resistance of nonwoven fabric
According to JIS L 1085-1992,5.7. method A (45 ° of cantilever methods) measures the bending resistance of nonwoven fabric.Numerical value is low more, and the flexibility of fabric is high more.
(k) texture score of nonwoven fabric
With the outward appearance that bore hole is observed fabric, estimate according to following three classification
The quality of grade fabric
3 fibre agglomerates that do not have discovery not launch.Do not find inhomogeneous Mass Distribution.The quality of fabric is even
2 fibre agglomerates that do not launch are not obvious.Bore hole can be found uneven Mass Distribution.
1 fibre agglomerates that does not launch is obvious.Inhomogeneous Mass Distribution is obvious.The fabric quality is inhomogeneous.
Embodiment 1
With 120 ℃ under vacuum dry 16 hours, its inherent viscosity [η] is 0.61, melt temperature [Tm] is that 256 ℃ poly terephthalic acid ethylidene ester (PET) particle mixes mutually with the mass ratio of high density polyethylene (HDPE) (HDPE) particle with 97: 3, and this high density polyethylene (HDPE) has 20g/10 minute melt index (MFR) and 131 ℃ melt temperature.With mixture fusion in double screw extruder, temperature is that 280 ℃ gained fused mass is extruded through (fusion-) spinning head with 200g/ minute rate of extrusion, and this spinning head has 600 spray silk circular holes that internal diameter is 0.3mm.With the thread smelt flow extruded chilled air cools, the non-stretching multifilament textile of cooling curing is reeled under 1150m/ minute speed with 30 ℃.With filling letter type crimper non-stretching multifilament textile is carried out wrinkle, so that the number of the plane Z font gauffer of the non-stretching single silk of multifilament textile is 8 gauffer/25mm, the gauffer percentage composition is 4%.Based on the dry mass of yarn, the multifilament textile of wrinkle is with the oil agent oiling of 25% dry mass, and it is 80/20 the alkyl phosphoric acid sylvite and the siloxanes of polyoxyethylene modification that this oil agent comprises mass ratio, and the hot-air that is blown into 45 ℃ then carries out drying.The non-stretching multifilament of drying is cut into the fibre length of 5mm.The thickness of gained polyester-type staple fiber is 3.1 fens Tekes, and degree of crystallinity is 16%, and birefringence is 0.0035.
It is 50g/m that staple fiber obtains substrate quality through the air web fabric forming process 2Fabric.Using a pair of surface temperature of rolling is 200 ℃ flat stack, under the speed of the line pressure of 80KPam and 20m/ minute fabric is rolled, and makes the air web nonwoven fabric.This nonwoven fabric has the bending resistance of 50mm, and the percentage composition of non-extensibility fiber (u) is 0.5%, and the quality uniformity of this nonwoven fabric is a 3rd level.
Embodiment 2
Produce polyester-type staple fiber and air web method nonwoven fabric with the step identical with embodiment 1, but replace PET with poly terephthalic acid ethylidene ester-M-phthalic acid ester copolymer, M-phthalic acid and its fusing point that this copolymer contains the copolyesterification of 10 moles of % are 220 ℃.The thickness of gained polyester-type staple fiber is 3.4 fens Tekes, and degree of crystallinity is 9%, and birefringence is 0.0027.The bending resistance of gained nonwoven fabric is 44mm, and the percentage composition that does not launch fiber is 0.8%, and the quality of nonwoven fabric is a 3rd level.
Embodiment 3
The particle (isophthalic acid ester that contains the copolymerization of 40 moles of % with unbodied poly terephthalic acid ethylidene ester-M-phthalic acid ester copolymer, dry 24 hours and its inherent viscosity [η] are 0.55 under 50 ℃ vacuum, and glass transition temperature (Tg) is 65 ℃) mix with 95: 5 mass ratioes with the particle of high density polyethylene (HDPE) (HDPE) (melt index is that 20g/10 minute, melt temperature are 131 ℃).With mixture fusion in double screw extruder, obtain the fused mass of 250 ℃ polyblend.Dividually, will be that PET particle fusion in extruder of 0.61 obtains 280 ℃ PET fused mass 120 ℃ of dry 16 hours down, inherent viscosity [η].
Fused mass and PET fused mass to polyblend carry out melt spinning, this method uses the interior centre type conjugated yarn of concentric shell to form the compound silk that spinning head (it has 1032 spinneret orifices of internal diameter as 0.3mm) obtains centre type in the shell, this compound silk has shell part that the fused mass by polyblend forms and the core that is formed by the PET fused mass, and the shell partly ratio (A/B) of the cross section of (A) and core (B) is 50: 50.
The logistics of centre type conjugation is extruded by spinning head with 870g/ minute rate of extrusion with 285 ℃ spray silk temperature in the shell of polyblend and PET fused mass, and the cold air that is blown into 30 ℃ cools off.Centre type conjugate complex gauze twines under 1150m/ minute speed in the shell that gained is non-stretching.Non-stretching conjugate complex gauze stretch rate with 3.75 in 80 ℃ hot water is stretched, then the water-bath of stretching conjugate complex gauze by 30 ℃ made the yarn cooling, to fuse between the single silk that prevents to stretch, with the yarn of cooling with the oil agent oiling of 0.2% dry mass, this oil agent comprises and mixes the dry mass ratio is 80: 20 the alkyl phosphoric acid sylvite and the siloxanes of polyoxyethylene modification, in filling letter type crimper, make the yarn wrinkle that were coated with oil, making the number of the plane Z font gauffer of each conjugated yarn is 9 gauffer/25mm, and the gauffer percentage composition is 12%.The silk of wrinkle is dry under 50 ℃, and cuts into the fibre length of 5mm.The thickness that gained often produces conjugate fibre is 2.1 fens Tekes.
Normal product conjugate fibre experience air fabric formation step obtains substrate quality (basis mass) and is 50g/m 2Fabric.The heat that fabric carried out 2 minutes is tangled the part bonding that single normal product conjugate fibre is being crossed one another with 150 ℃ hot air flows.Gained air web method nonwoven fabric has the bending resistance of 53mm, and the percentage composition of the fiber of Zhan Kaiing not is 0.7%, and the quality of nonwoven fabric is a 3rd level.
Comparing embodiment 1
Make polyester-type according to embodiment 3 identical methods and often produce composite fibre and air web method nonwoven fabric, but with unbodied poly terephthalic acid ethylidene ester and M-phthalic acid ester copolymer (M-phthalic acid that contains 40 moles of % combined polymerizations, inherent viscosity [η] be 0.55 and Tg be 65 ℃) replace being used to form the amorphous PET copolymer of shell part of conjugate fibre and the copolymer mixture of HDPE.The thickness that gained often produces conjugate fibre is 2.1 fens Tekes.The bending resistance of gained nonwoven fabric is 83mm, and the percentage composition of the fiber of Zhan Kaiing not is 11%, and the quality of nonwoven fabric is the 1st grade.
Comparing embodiment 2
Make the shell polyblend partly that is used to form centre type conjugated yarn in the shell according to embodiment 3 identical methods, but the blending ratio of amorphous PET copolymer pellet and HDPE became 84: 16 from 95: 5.The silk of gained polyblend forms poor performance, therefore can't carry out fusing spinning step.
Embodiment 4
Prepare polyester-type staple fiber and nonwoven fabric according to the method identical with embodiment 3, but except following.At the polyblend of the shell part that is used for conjugated yarn, be that 30g/10 minute, Tm are that 160 ℃ isotactic acrylic resin replaces HDPE with MFR.
The thickness that gained often produces conjugate fibre is 2.2 fens Tekes.The bending strength of gained nonwoven fabric is 58mm, and the percentage composition of the fiber of Zhan Kaiing not is 1.3%, and the quality of nonwoven fabric is a 3rd level.
Embodiment 5
Prepare polyester-type staple fiber and nonwoven fabric according to the method identical with embodiment 3, but except following.
At the polyblend of the shell part that is used for conjugated yarn, replace HDPE with ethylene, propylene random copolymer (MFR is that 50g/10 minute, Tm are 135 ℃, and the combined polymerization mol ratio of ethene and propylene is 37: 63).
The thickness that gained often produces conjugate fibre is 2.2 fens Tekes.
The bending resistance of gained nonwoven fabric is 58mm, and the percentage composition of the fiber of Zhan Kaiing not is 1.3%, and the quality of nonwoven fabric is a 3rd level.
Embodiment 6
Prepare polyester-type staple fiber and nonwoven fabric according to the method identical with embodiment 3, but except following.
At the polyblend of the shell part that is used for conjugated yarn, to replace HDPE with the straight-chain low density polyethylene of 3.5% quality maleic anhydride graft copolymerization (MFR is that 8g/10 minute, Tm are 96 ℃).
The thickness that gained often produces conjugate fibre is 2.2 fens Tekes.
The bending resistance of gained nonwoven fabric is 52mm, and the percentage composition of the fiber of Zhan Kaiing not is 0.8%, and the quality of nonwoven fabric is a 3rd level.
Embodiment 7
Prepare polyester-type staple fiber and nonwoven fabric according to the method identical with embodiment 3, but except following.
With inherent viscosity is that 1.34 (measuring in 35 ℃ metacresol) and Tm are the PET that 215 ℃ nylon 6 replaces being used for the core of conjugated yarn.It is 240 ℃ nylon 6 fused mass that the fusion in extruder of the small pieces of nylon 6 makes temperature.Under the rate of extrusion of 250 ℃ spray silk temperature and 500g/ minute, carry out melt spinning and obtain centre type conjugated yarn in the shell.The non-stretching multifilament textile of gained is at room temperature stretched with 2.1 extensibility, and the extensibility with 1.05 stretches in 55 ℃ hot water then.The stretching multifilament textile is cooled off by water-bath, again with the identical method oiling of embodiment 3.Produce plane Z font fold on the multifilament textile of oiling, the gauffer number is 12 gauffer/25mm, and the percentage composition of gauffer is 6.5%, and is dry down at 45 ℃ then.With the identical method of embodiment 3 multifilament of wrinkle is cut into staple fiber.
The thickness that gained often produces conjugate fibre is 2.2 fens Tekes.
The bending resistance of gained nonwoven fabric is 52mm, and the percentage composition of the fiber of Zhan Kaiing not is 1.6%, and the quality of nonwoven fabric is a 3rd level.
Embodiment 8
Prepare polyester-type staple fiber and nonwoven fabric according to the method identical, but the length of staple fiber changes 3mm into by 5mm with embodiment 3.
The bending resistance of gained nonwoven fabric is 57mm, and the percentage composition of the fiber of Zhan Kaiing not is 1.6%, and the quality of nonwoven fabric is a 3rd level.
Embodiment 9
Prepare polyester-type staple fiber and nonwoven fabric according to the method identical, but replace conjugated yarn moulding spinning head in center in the concentric shell with centre type conjugated yarn moulding spinning head in the shell of off-centre with embodiment 3.The percentage composition of the gauffer on the fiber of wrinkle becomes 15% by 12%, and gauffer is the ω type.
The thickness that gained often produces conjugate fibre is 2.3 fens Tekes.
The bending resistance of gained nonwoven fabric is 55mm, and the percentage composition that does not launch fiber is 0.9%, and the quality of nonwoven fabric is a 3rd level.
Embodiment 10
Prepare polyester-type staple fiber and nonwoven fabric according to the method identical, but on the compound multifilament textile that stretches, do not generate gauffer with embodiment 3.
The bending resistance of gained nonwoven fabric is 53mm, and the percentage composition that does not launch fiber is 0.2%, and the quality of nonwoven fabric is a 3rd level.
Embodiment 11
To be suspended in the water by the polyester-type staple fiber and the wood pulp fibre (mass ratio is 80: 20) of embodiment 10 same procedure preparation, fully stir simultaneously, use the rectangular sheet pressing machine to make size by moisture mixed fiber pulp and be about 25cm * about 25cm, the butt quality is 50g/m 2Sheet material.This sheet material is dry 24 hours or longer time at room temperature, is placed on then on the porose teflon plate, shrinks in 120 ℃ hot air circulate type drier and handled 5 minutes, obtains the damp process nonwoven fabric.
The bending resistance of gained nonwoven fabric is 38mm, and the quality of nonwoven fabric is a 3rd level.
Comparing embodiment 3
Prepare polyester-type staple fiber and damp process nonwoven fabric according to the method identical, but omit the step of the stretching multifilament textile being carried out wrinkle with embodiment 11.
The bending resistance of gained nonwoven fabric is 38mm, and the quality of nonwoven fabric is the 2nd grade.
Embodiment 12
Prepare the polyester-type staple fiber according to the method identical, but the length of staple fiber changes 51mm into by 5mm with embodiment 3.
Staple fiber is dosed into the combing step of using the cylinder carding machine, makes carded webs (cardweb).In the combing step, staple fiber demonstrates good carding machine through performance.A plurality of carded webs are overlapped each other place that to obtain the butt quality be 50g/m 2Laminated fabric.
Making this laminated fabric at the mutual cross section of staple fiber heat take place with thermal air current with the heat entanglement method identical with embodiment 3 tangles, obtains the hot entanglement nonwoven fabric of combing method.
The bending resistance of gained nonwoven fabric is 58mm, and the quality of nonwoven fabric is a 3rd level.
Embodiment 13
Prepare the polyester-type staple fiber according to the method identical, but the length of staple fiber changes 51mm into by 5mm with embodiment 10.
Step according to embodiment 12 is dosed into the combing step with staple fiber, makes carded webs.In the combing step, staple fiber demonstrates good carding machine through performance.A plurality of carded webs are overlapped each other in embodiment 12 identical modes place and carry out heat entanglement, obtain the hot entanglement nonwoven fabric of combing method.
The bending resistance of gained nonwoven fabric is 51mm, and the quality of nonwoven fabric is a 3rd level.
The present invention can provide specific polyester-type staple fiber, is used to form soft and the uniform nonwoven fabric of quality.The present invention also can provide the not only even but also soft nonwoven fabric of quality.What especially, the prepared nonwoven fabric of fabric that is formed by the air web fabric forming process by polyester-type staple fiber of the present invention had a low content does not launch fiber and good quality uniformity.
Therefore, specific polyester-type staple fiber makes the nonwoven fabric that is made by this staple fiber have more purposes, therefore has higher industrial value.

Claims (12)

1. polyester-type staple fiber comprises:
Polyblend, it comprises 0.5-15 quality %, and mixes and be dispersed in polyolefin polymer in the substrate polyester polymer,
50% or more fiber surface form by described polyblend.
2. polyester-type staple fiber according to claim 1, wherein said polyolefin polymer comprises and is selected from polyethylene, polypropylene, ethylene-propylene copolymer, at least a in polyethylene and ethylene copolymers and the polypropylene copolymer, the wherein at least a ethylenically unsaturated monomers that is different from ethene and propylene is block copolymerization or graft copolymerization.
3. polyester-type staple fiber according to claim 1, wherein said substrate polyester polymer are selected from polyalkylene terephthalates and polyalkylene terephthalates-M-phthalic acid ester copolymer.
4. according to one of any described polyester-type staple fiber among the claim 1-3, the degree of crystallinity of wherein said polyester-type staple fiber is 20% or littler, and birefringence is 0.05 or littler.
5. according to one of any described polyester-type staple fiber among the claim 1-3, wherein said polyester-type staple fiber has centre type conjugated structure in the concentric or eccentric shell, and shell part is wherein formed by polyblend.
6. according to one of any described polyester-type staple fiber among the claim 1-3, wherein said polyester-type staple fiber has the fibre length of 2-30mm, and having the gauffer number is 3-13 gauffer/25mm, and the gauffer percentage composition is plane Z font or the ω type gauffer of 3-15%.
7. according to one of any described polyester-type staple fiber among the claim 1-3, wherein said polyester-type staple fiber has the fibre length of 30-200mm, and to have the gauffer number be 5-30 gauffer/25mm, and the gauffer percentage composition is the gauffer of 3-30%.
8. nonwoven fabric comprises one of any described a plurality of polyester-type staple fibers among the claim 1-6, and is made by the air web fabric forming process.
9. nonwoven fabric according to claim 8, the percentage composition that does not launch fiber in the wherein said nonwoven fabric is 5% or littler.
10. nonwoven fabric comprises one of any described a plurality of polyester-type staple fibers among the claim 1-5, and is made by the wet forming method.
11. nonwoven fabric comprises one of any described a plurality of polyester-type staple fibers in claim 1-5 and 7, and is made by the carded webs forming process.
12. one of any described nonwoven fabric according to Claim 8-11, the bending resistance that wherein said nonwoven fabric is measured by cantilever method is 70mm or littler.
CNB03800884XA 2002-06-21 2003-06-18 Polyester staple fiber and nonwoven fabric composed thereof Expired - Lifetime CN1320180C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002181139A JP4027728B2 (en) 2002-06-21 2002-06-21 Nonwoven fabric made of polyester staple fibers
JP181139/2002 2002-06-21

Publications (2)

Publication Number Publication Date
CN1545573A true CN1545573A (en) 2004-11-10
CN1320180C CN1320180C (en) 2007-06-06

Family

ID=29996620

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB03800884XA Expired - Lifetime CN1320180C (en) 2002-06-21 2003-06-18 Polyester staple fiber and nonwoven fabric composed thereof

Country Status (10)

Country Link
US (2) US20040265577A1 (en)
EP (1) EP1516079B1 (en)
JP (1) JP4027728B2 (en)
KR (1) KR20050009979A (en)
CN (1) CN1320180C (en)
AU (1) AU2003244268A1 (en)
DE (1) DE60330562D1 (en)
HK (1) HK1067389A1 (en)
TW (1) TWI303283B (en)
WO (1) WO2004001108A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103168121A (en) * 2010-10-27 2013-06-19 帝人株式会社 Biomass-derived polyester short fibers and wet nonwoven fabric formed from same
CN101896653B (en) * 2007-10-19 2014-01-08 Es飞博比琼斯株式会社 Hot-melt adhesive polyester conjugate fiber
CN110709551A (en) * 2017-06-09 2020-01-17 东洋纺株式会社 Long fiber nonwoven fabric and filter reinforcing material using same
CN112095230A (en) * 2020-08-15 2020-12-18 福建冠泓工业有限公司 Super-soft super-fluffy spun-bonded non-woven fabric and preparation method thereof
CN109196150B (en) * 2016-05-30 2021-09-21 Es飞博比琼斯株式会社 Hot-melt conjugate fiber, method for producing same, sheet-like fiber assembly, and method for producing nonwoven fabric
CN113827762A (en) * 2020-06-24 2021-12-24 上海清白香环保科技有限公司 Medical dressing for inhibiting harmful microorganism breeding

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040260034A1 (en) 2003-06-19 2004-12-23 Haile William Alston Water-dispersible fibers and fibrous articles
US7892993B2 (en) 2003-06-19 2011-02-22 Eastman Chemical Company Water-dispersible and multicomponent fibers from sulfopolyesters
US8513147B2 (en) 2003-06-19 2013-08-20 Eastman Chemical Company Nonwovens produced from multicomponent fibers
JP4831971B2 (en) * 2005-01-11 2011-12-07 日本エステル株式会社 Short fiber for nonwoven fabric and short fiber nonwoven fabric
WO2007091665A1 (en) * 2006-02-06 2007-08-16 Teijin Fibers Limited Process for production of polyester fiber for air-laid nonwoven fabrics
JP4955278B2 (en) * 2006-02-06 2012-06-20 帝人ファイバー株式会社 Polyester fiber for airlaid nonwoven fabric and method for producing the same
JP4881026B2 (en) * 2006-02-06 2012-02-22 帝人ファイバー株式会社 Heat-adhesive conjugate fiber for airlaid nonwoven fabric and method for producing the same
JP5065670B2 (en) * 2006-12-27 2012-11-07 帝人ファイバー株式会社 Nonwoven fabric and sheet
JP4960908B2 (en) * 2008-03-13 2012-06-27 帝人ファイバー株式会社 Polyethylene naphthalate fiber and short fiber nonwoven fabric comprising the same
US8512519B2 (en) 2009-04-24 2013-08-20 Eastman Chemical Company Sulfopolyesters for paper strength and process
JP2011195978A (en) * 2010-03-18 2011-10-06 Teijin Fibers Ltd Heat-bonding composite fiber for producing wet nonwoven fabric, and method of producing the same
US20120183861A1 (en) 2010-10-21 2012-07-19 Eastman Chemical Company Sulfopolyester binders
WO2012114829A1 (en) * 2011-02-23 2012-08-30 東レ株式会社 Fiber reinforced composite material
WO2013002245A1 (en) * 2011-06-28 2013-01-03 萩原工業株式会社 Concrete-reinforcing connecting fibers and manufacturing method thereof
JP4945004B2 (en) * 2011-08-22 2012-06-06 帝人ファイバー株式会社 Method for producing polyester fiber for airlaid nonwoven fabric
US8840757B2 (en) 2012-01-31 2014-09-23 Eastman Chemical Company Processes to produce short cut microfibers
JP6077370B2 (en) * 2013-04-05 2017-02-08 帝人株式会社 Thermal adhesive composite fiber
US9303357B2 (en) 2013-04-19 2016-04-05 Eastman Chemical Company Paper and nonwoven articles comprising synthetic microfiber binders
EP3017100B1 (en) * 2013-07-03 2019-02-13 Low & Bonar B.V. Nonwoven material
US9968435B2 (en) * 2013-07-10 2018-05-15 Terumo Kabushiki Kaisha Body lumen graft base, production method of body lumen graft base, and body lumen graft using the same
US9598802B2 (en) 2013-12-17 2017-03-21 Eastman Chemical Company Ultrafiltration process for producing a sulfopolyester concentrate
US9605126B2 (en) 2013-12-17 2017-03-28 Eastman Chemical Company Ultrafiltration process for the recovery of concentrated sulfopolyester dispersion
JP6298697B2 (en) * 2014-04-18 2018-03-20 Ｋｂセーレン株式会社 Composite fiber and fabric
DE102017004481A1 (en) * 2017-05-11 2018-11-15 Carl Freudenberg Kg Textile fabric for electrical insulation

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531368A (en) * 1966-01-07 1970-09-29 Toray Industries Synthetic filaments and the like
JPS56159340A (en) * 1980-05-09 1981-12-08 Asahi Chemical Ind Production of polyester nonwoven fabric
EP0080274B1 (en) * 1981-11-23 1986-05-14 Imperial Chemical Industries Plc Process of melt spinning of a blend of a fibre-forming polymer and an immiscible polymer and melt spun fibres produced by such process
FI74738C (en) * 1986-05-09 1988-03-10 Outokumpu Oy FOERFARANDE OCH ANORDNING FOER ATT MINSKA STOFTAGGLOMERATER VID BEHANDLING AV GASER AV SMAELTNINGSUGNEN.
US4908052A (en) * 1987-04-20 1990-03-13 Allied-Signal Inc. Fibers and filters containing said fibers
JPH02500176A (en) * 1987-04-20 1990-01-25 アライド・コーポレーション Improved fibers and filters containing these fibers
US5082720A (en) * 1988-05-06 1992-01-21 Minnesota Mining And Manufacturing Company Melt-bondable fibers for use in nonwoven web
US5069970A (en) * 1989-01-23 1991-12-03 Allied-Signal Inc. Fibers and filters containing said fibers
US6495656B1 (en) * 1990-11-30 2002-12-17 Eastman Chemical Company Copolyesters and fibrous materials formed therefrom
JP2599847B2 (en) * 1991-08-13 1997-04-16 株式会社クラレ Polyethylene terephthalate type melt blown nonwoven fabric and its manufacturing method
DE4412969C1 (en) * 1994-04-14 1995-06-22 Inventa Ag Stretched PET fibres with improved bulk and recovery
US5948529A (en) * 1997-02-26 1999-09-07 Hna Holdings, Inc. Bicomponent fiber
US6231976B1 (en) * 1997-08-28 2001-05-15 Eastman Chemical Company Copolyester binder fibers
US6544455B1 (en) * 1997-12-22 2003-04-08 Kimberly-Clark Worldwide, Inc. Methods for making a biodegradable thermoplastic composition
US6686303B1 (en) * 1998-11-13 2004-02-03 Kimberly-Clark Worldwide, Inc. Bicomponent nonwoven webs containing splittable thermoplastic filaments and a third component
KR100723551B1 (en) * 1999-04-30 2007-05-31 킴벌리-클라크 월드와이드, 인크. Stretchable Nonwoven Material
EP1200505B1 (en) * 1999-08-06 2004-07-07 Eastman Chemical Company Polyesters having a controlled melting point and fibers formed therefrom
US6855422B2 (en) * 2000-09-21 2005-02-15 Monte C. Magill Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereof
JP3778808B2 (en) * 2001-04-04 2006-05-24 帝人ファイバー株式会社 Polyester-based heat-adhesive conjugate fiber and method for producing the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101896653B (en) * 2007-10-19 2014-01-08 Es飞博比琼斯株式会社 Hot-melt adhesive polyester conjugate fiber
CN103168121A (en) * 2010-10-27 2013-06-19 帝人株式会社 Biomass-derived polyester short fibers and wet nonwoven fabric formed from same
CN109196150B (en) * 2016-05-30 2021-09-21 Es飞博比琼斯株式会社 Hot-melt conjugate fiber, method for producing same, sheet-like fiber assembly, and method for producing nonwoven fabric
CN110709551A (en) * 2017-06-09 2020-01-17 东洋纺株式会社 Long fiber nonwoven fabric and filter reinforcing material using same
CN110709551B (en) * 2017-06-09 2021-12-28 东洋纺株式会社 Long fiber nonwoven fabric and filter reinforcing material using same
US11225738B2 (en) 2017-06-09 2022-01-18 Toyobo Co., Ltd. Long-fiber nonwoven fabric and filter reinforcement material using the same
CN113827762A (en) * 2020-06-24 2021-12-24 上海清白香环保科技有限公司 Medical dressing for inhibiting harmful microorganism breeding
CN112095230A (en) * 2020-08-15 2020-12-18 福建冠泓工业有限公司 Super-soft super-fluffy spun-bonded non-woven fabric and preparation method thereof

Also Published As

Publication number Publication date
HK1067389A1 (en) 2005-04-08
US20040265577A1 (en) 2004-12-30
EP1516079B1 (en) 2009-12-16
TWI303283B (en) 2008-11-21
CN1320180C (en) 2007-06-06
AU2003244268A1 (en) 2004-01-06
KR20050009979A (en) 2005-01-26
US20070098986A1 (en) 2007-05-03
TW200402485A (en) 2004-02-16
DE60330562D1 (en) 2010-01-28
EP1516079A1 (en) 2005-03-23
EP1516079A4 (en) 2006-05-24
JP2004027377A (en) 2004-01-29
WO2004001108A1 (en) 2003-12-31
JP4027728B2 (en) 2007-12-26

Similar Documents

Publication Publication Date Title
CN1320180C (en) Polyester staple fiber and nonwoven fabric composed thereof
CN1271269C (en) Nonwoven fabric, process for producing same, sanitary material, and sanitary supply
CN1097116C (en) Purous fiber structure and its making method
CN1178267A (en) Composite long fiber nonwoven fabrics and manufacture thereof
US20090243141A1 (en) Manufacturing method of polyester fiber for airlaid nonwoven fabrics
TWI784249B (en) Polyesters with ultra-high flowability and superior stability and meltblown fibers thereof
KR101894773B1 (en) Polyester Nonwoven Fabric, Method for Manufacturing The Same, and Primary Backing Substrae for Carpet Comprising The Same
TWI304448B (en) Poly (trimethylene terephthalate) bicomponent fiber process
JP2003171860A (en) Fiber for air laid nonwoven fabric
JP2010209500A (en) Short-cut polyester conjugate fiber
KR20170001319A (en) Dimensional Stable Non-woven Fabric, and Method for Manufacturing the Same
JP2019210567A (en) Wet laid non-woven fabric
JP2013133571A (en) Thermally adhesive conjugated fiber having high mechanical crimping performance and method for producing the same
JP5344963B2 (en) Short fiber nonwoven fabric
JPH1037056A (en) Nonwoven fabric for thermoforming
JP5117259B2 (en) Polyester composite staple fiber and staple fiber nonwoven fabric
JP7425866B2 (en) Spunbond nonwoven fabric and carpet tiles using it
JP4336551B2 (en) Shoji paper
JP2009215662A (en) Staple fiber for nonwoven fabric and stape fiber nonwoven fabric
JP2024088496A (en) Polyester elastomer fiber
WO2019245217A1 (en) Non-woven fabric for carpet backing and method for manufacturing same
JP2011195978A (en) Heat-bonding composite fiber for producing wet nonwoven fabric, and method of producing the same
JP6475033B2 (en) Polyester fiber
JPH09163489A (en) Diaphragm for electroacoustic transducer and manufacturing method thereof
JP2004162231A (en) Polyester-based binder fiber for japanese shoji paper

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1067389

Country of ref document: HK

C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180322

Address after: Osaka City, Osaka of Japan

Patentee after: TEIJIN FRONTIER CO.,LTD.

Address before: Osaka Japan

Patentee before: Teijin Fibers Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20070606