CN108884599A - A kind of core sheath composite fibre and its fabric - Google Patents
A kind of core sheath composite fibre and its fabric Download PDFInfo
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- CN108884599A CN108884599A CN201780018084.3A CN201780018084A CN108884599A CN 108884599 A CN108884599 A CN 108884599A CN 201780018084 A CN201780018084 A CN 201780018084A CN 108884599 A CN108884599 A CN 108884599A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
-
- 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
- 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
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide 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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Multicomponent Fibers (AREA)
- Manufacturing & Machinery (AREA)
- Woven Fabrics (AREA)
Abstract
This application discloses a kind of core sheath composite fibre, mesotheca ingredient is polyamide, and core component is easily to dissolve out polyester, and the tensile viscosity N of the tensile viscosity M of the polyamide in the fiber and easily dissolution polyester meets the following conditions：Under 255 DEG C or more of same temperature, M-N >=0Pa.s.The fiber can possess excellent light weight by being reduced post-processing, and possess excellent washing fastness after dyeing.
Description
The core sheath composite fibre that the present invention relates to a kind of colorfastness is excellent, dyeing effect is good and the fabric containing the fiber.
People select not requiring nothing more than to dress well and see when gym suit, also require weight bearing sense low as far as possible, can be heartily soaked with sweat and be without fear of an attack from the rear.Therefore, the performances such as light weight, the moisture absorption of wearing fabric are especially moved to garment material, and more stringent requirements are proposed.Although the good hygroscopicity of natural fiber, comfortable and easy to wear, the weight reduction rate of natural fiber is too low, does not reach the light weight that can satisfy movement needs, can generate during exercise or to human body certain weight bearing sense.In terms of the synthetic fibers be primarily now by doughnut or composite fibre after the method that dissolves out realize the lightweight of fiber；By be copolymerized with hygroscopic matter or the chemical method that is blended perhaps the roughening of fiber surface, section abnormal shape, porous, hollow fibre structure physical method realize the hygroscopicity of fiber or directly using the polymer with moisture absorbing.
Chinese patent CN1284140A discloses a kind of hollow section daiamid composition multifilament yarn, and the fracture morphology of the multifilament yarn is c-type, and opening percentage is greater than 15%.Although due to the performance of polyamide itself, the multifilament yarn meets the requirement of sportswear fabric well in terms of hydroscopicity and comfort, but the low forming degree of polyamide determines that hollow rate is almost not achieved 25% when polyamide single composition yarn is cooling, there is no apparent light weight sense, to the no positive effect of weight bearing sense for mitigating clothing.
Chinese patent CN101748512A discloses a kind of polyester complex fiber of skin-core structure, and cortex polymer is polyester or polyamide, and core layer polymer is alkali ease of solubility copolyesters.Although the fiber is reduced
Can also have light weight sense and hygroscopicity afterwards, but the differences in viscosity as caused by polyester and polyamide-compatible and spinning temperature, it is sufficiently tensile so that polyamide is unable to get, fiber and subsequent fabric are resulted in after using polyamide acid dyeing, wash the problems such as fastness is poor, and dyeing effect is bad.
Summary of the invention
It is sheath ingredient, easily dissolution polyester as the sheath-core type conjugate fiber of core component that the purpose of the present invention is to provide a kind of using polyamide.The hollow Fypro of the fiber available light weight, good hygroscopicity after decrement, and dyeing effect after polyamide acid dyeing is good, washing fastness is good.Fiber of the invention can be used for preparing fabric, and the fabric comfort after being reduced is good, and special matters move wearing fabric.
The technical solution of the invention is as follows:
A kind of core sheath composite fibre, mesotheca ingredient are polyamide, and core component is easily to dissolve out polyester.The tensile viscosity N of the tensile viscosity M of polyamide in the fiber and easily dissolution polyester meets the following conditions: under 255 DEG C or more of same temperature, M-N >=0Pa.s, preferably M-N >=100Pa.s.
The weight of polyamide and easily dissolution polyester is compound than preferred 70:30~30:70 in the fiber.
M-phthalic acid -5- the sulfonate that 0.3~0.5wt% of polyester total amount is accounted in terms of S element is preferably comprised in the easy dissolution polyester.
On the cross section transverse of the fiber, the preferred c-type or U-shaped of sheath ingredient polyamide.
The invention also discloses a kind of fabric, contain above-mentioned sheath-core type conjugate fiber in the fabric.
Fiber of the invention not only has the good characteristic of light weight, good hygroscopicity after being reduced, and, washing fastness good through dyeing poststaining effect might as well.
Fig. 1 is the sectional view of core sheath composite fibre of the present invention.
Fig. 2 is sectional view of the core sheath composite fibre of the present invention after decrement treatment.
The core component of core sheath composite fibre of the invention is constituted by easily dissolving out polyester, and sheath ingredient is made of polyamide, the Fypro of available hollow, c-type or U-shaped equal section shape after decrement.
It is compared with the direct Fypro formed by special-shaped or hollow spinneret plate, is capable of forming bigger voidage by dissolving out easily dissolution polyester after core sheath composite spinning again, reaches apparent light weight effect.This is because directly by the way that in special-shaped or hollow spinneret plate spinning process, the polymer squeezed out from spinneret can largely offset the formation in gap because of expansion, thus influence final light weight effect.
And when polyester composite spinning is dissolved out using polyamide and easily in the prior art, because of compatibility and differences in viscosity existing for spinning temperature difference, cause polyamide to be unable to get to be sufficiently tensile, composite fibre and later period fabric are resulted in after using polyamide acid dyeing, washing fastness is poor, and dyeing effect is bad.
The present invention is more than or equal to the tensile viscosity N of easily dissolution polyester by the tensile viscosity M of setting polyamide, so that polyamide is during composite spinning, it, can be by more tension force stretchings when especially spin-drawing tension distributes, the orientation that will not prevent polyamide enables molecule orientation sufficiently to carry out.The washing fastness of the polyamide portion being sufficiently tensile after dyeing is excellent, and dyeing effect is good.If the incomplete orientation of polyamide or only part orientation, the dyestuff attachment space after will lead to dyeing is big, and falling off for fuel occurs in the washing process of later period fiber and fabric, causes washing fastness bad.
Assuming that the tensile viscosity of polyamide is M, the tensile viscosity for easily dissolving out polyester is N, then under 255 DEG C or more of same temperature, M-N >=0Pa.s, preferably M-N >=100Pa.s.
The weight of polyamide and easily dissolution polyester is compound than can arbitrarily change in known range in core sheath composite fibre of the invention.In order to obtain the more superior Fypro of light weight after decrement, the preferably weight is compound than being 70:30~30:70, more preferable 60:40~40:60.
The polyamide can be nylon 6, nylon66 fiber or their modified copolymer etc..
The easy dissolution polyester is mainly formed by aromatic acid or its carboxylate, aliphatic dihydroxy alcohol and M-phthalic acid -5- Sulfonates combined polymerization.In addition, polyalkylene diol copolymer ingredient can also be contained in the easy dissolution polyester.
Sulfonic acid group is polar hydrophilic group, has sucting electronic effect, while the introducing of M-phthalic acid -5- Sulfonates compound changes the regularity of polyester molecule chain, is conducive to the infiltration of aqueous slkali and the progress of Alkali reduction process.M-phthalic acid -5- Sulfonates the compound preferably accounts for 0.3~0.5wt% of easily dissolution polyester total amount in terms of S element.
But since sulfonate compound is formed by steric hindrance and polar effect, it will lead to polyester melt viscosity rising, influence spinnability.Therefore, soft segment polyalkylene dihydric alcohol can be introduced in the polyester, substantially improves the rigidity of polyester molecule, improves the spinnability of polyester, while further increasing the dissolving out capability of the polyester.
The aromatic acid or the preferred terephthalic acid (TPA) of its carboxylate, the preferred ethylene glycol of aliphatic dihydroxy alcohol, the preferred polyethylene glycol of polyalkylene dihydric alcohol.
On the cross section transverse of core sheath composite fibre of the present invention, the preferred c-type or U-shaped of sheath ingredient polyamide.
The invention also discloses a kind of fabrics containing above-mentioned core sheath composite fibre.Using fabric made from 100% above-mentioned core sheath composite fibre after decrement treatment, the lightweight rate of fabric can reach 30% or more.
Core sheath composite fibre of the invention can be prepared using spinning process commonly known in the art.For example, the polyamide for meeting differences in viscosity of the present invention is sliced and dissolves out polyester slice easily with certain weight ratio by melting, composite spinneret ejection, spinning, batching, nylon composite long fiber is obtained.Preferred 70:30~the 30:70 of weight ratio, more preferable 60:40~40:60.
Above-mentioned spinning process can use one-step shaping method drawing and forming, and first spinning can also be taken to carry out extending two one-step forming methods of twisting processing again.
The invention further relates to a kind of fabric at least containing above-mentioned core sheath composite fibre, the preparation method of the fabric can be using known method in the prior art.After obtaining fabric, stripping property processing, available light weight fabric are carried out under the conditions of alkali soluble solution appropriate.Remaining Fypro after observation decrement, it can be seen that the cross section transverse form of Fypro, the fracture morphology of preferred polyamide fiber are c-type or U-shaped.
When the fabric is all prepared by core sheath composite fibre, after being reduced, the lightweight rate of fabric can achieve 30% or more before decrement in preferred technical solution
Using conventional treatment process when decrement treatment, usually carried out in the NaOH solution that concentration is 1%~5%, bath raio is 100~200.
Formally since the tensile viscosity of polyamide in core sheath composite fibre of the invention is more than or equal to the tensile viscosity of easily dissolution polyester, so that spinning process polyamide is sufficiently tensile, and then obtain after decrement removes easily dissolution polyester light weight, good hygroscopicity, dyeing effect are good, colorfastness is excellent Fypro and containing the fabric of the fiber.
The test method of parameter involved in the present invention is as follows.
1. each Ingredients Weight in core sheath composite fibre
(1) test method of polyamide: core sheath composite fibre being put into 1% NaOH solution,
Bath raio is that 1:100 carries out decrement treatment, and polyamide is obtained after decrement is complete, is weighed after dry；
(2) it easily dissolves out the test method of polyester: core sheath composite fibre is handled according to GB-T2910.7-2009, polyamide obtains easily dissolving out polyester after all dissolving, and weighs after dry.
2. the content of M-phthalic acid -5- Sulfonates compound easily in dissolution polyester
Easy dissolution polyester after will be dry obtained in test method 1 (2) measures sulfur content therein using elemental analyser, and the content of M-phthalic acid -5- Sulfonates compound is obtained after converting.Final result takes test 5 times average value.
3. tensile viscosity
Using the polyamide and easily dissolution polyester respectively obtained in test method 1 as sample, the shear viscosity of polyamide and easily dissolution polyester under 255 DEG C or more of same temperature is tested using capillary rheometer, obtain viscosity when corresponding zero shearing, 3 times of viscosity when tensile viscosity is zero shearing.
4. core sheath composite fibre fracture morphology
By SEM photograph, fiber cross-sectional shapes are observed.
5. washing fastness
Pass through JIS0844-2011 and GB-T3921-2008 standard testing.
6. fabric reduction rate
Fabric is made in core sheath composite fibre of the invention, a certain amount of fabric is taken to be put into the NaOH solution that concentration is 1%~5%, bath raio is 100~200, by decrement treatment, after guaranteeing that sample remaining weight is no longer changed after being finally reduced, it takes out remaining fabric drying, weigh weight
Reduction rate=(remaining weight after weight-decrement before being reduced)/weight × 100% before being reduced.
7. fabric lightweight rate
Fabric will be made by core sheath composite fibre of the invention, the fabric of certain area is taken to be reduced completely
The easy dissolution polyester of removal, the weight for weighing fabric after being reduced is M1, and the diameter of Polyamide filaments in fabric after being reduced is observed and measured by microscope；Take the Fypro of same diameter, identical component with same weaving condition woven into fabric, the weight for weighing the same area fabric is M2.The calculating of fabric lightweight rate is as follows:
Fabric lightweight rate=(M2-M1)/M2 × 100%.
Below with reference to embodiment, the present invention is further illustrated.
Embodiment 1
It is pre-crystallized, dry to moisture content 100ppm or less that 70wt% nylon 6 (N6) and 30wt% are easily dissolved out into polyester slice difference, each feed bin is put into respectively, it is melted at a temperature of 250~300 DEG C through each screw rod, its discharge-amount is controlled by individual metering pump, by controlling core-sheath-type composite spining module of temperature under the conditions of about 290 DEG C by spinning manifold, spin nascent composite fibre, molding is cooled and solidified under the conditions of cross air blasting wind speed 40m/min, fiber, which is uniformly oiled, to oil nozzle again makes the collection of filaments and reduces friction, oil addition 1.0%.
The fiber that oil supply boundling is over passes through spinning shaft, through pre- winding apparatus interlacing, into the first hot-rolling 1HR (temperature is 80 DEG C), and on the first hot-rolling after 6 circle of winding, again through the second hot-rolling 2HR, also the circle of wound thereon 6 (temperature is 160 DEG C), stretching ratio between first hot-rolling and the second hot-rolling is 2.50, fiber after drawn carries out interlacing to it by main winding apparatus under the second hot-rolling, again by 2 roller (3GR, fiber introducing coiling machine 4GR) is coiled into finished product spinning cake (FDY), the coiling speed of coiling machine is 5000m/min, obtain composite fibre 66Den/36f.
The tensile viscosity for testing nylon 6 and easily dissolution polyester respectively at 290 DEG C, is 588Pa.s respectively, and tensile viscosity difference is 0Pa.s.Easily in dissolution polyester, the content of M-phthalic acid -5- sulfonate is calculated as 0.3wt% with S element.Fiber cross-sectional is observed with SEM, nylon 6 is in easily dissolution polyester
It is outer at U-shaped.Fabric all is prepared using core sheath composite fibre obtained above, fabric is reduced 25 minutes in the NaOH solution that concentration is 1%, bath raio is 150, the reduction rate of fabric is 31.0%, lightweight rate 30.1%.After fabric is dyed, test washing fastness is 4~5 grades under JIS standard and GB standard.
Embodiment 2
60wt% nylon 6 (N6) and 40wt% are easily dissolved out into polyester slice and carry out spinning with embodiment 1, obtains composite fibre 66Den/36f.
At 290 DEG C, test nylon 6 and the easy tensile viscosity for dissolving out polyester, respectively 688Pa.S and 588Pa.S, tensile viscosity difference are 100Pa.S respectively.Easily in dissolution polyester, the content of M-phthalic acid -5- sulfonate is calculated as 0.5wt% with S element.Fiber cross-sectional is observed with SEM, nylon 6 is outside easily dissolution polyester at c-type.Fabric all is prepared using core sheath composite fibre obtained above, fabric is reduced 30 minutes in the NaOH solution that concentration is 1%, bath raio is 150, fabric reduction rate is 43.0%, lightweight rate 41.2%.After fabric is dyed, test washing fastness is 4~5 grades under JIS standard and GB standard.
Embodiment 3
50wt% nylon 6 (N6) and 50wt% are easily dissolved out into polyester slice and carry out spinning with embodiment 1, obtains composite fibre 66Den/36f.
At 290 DEG C, test nylon 6 and the easy tensile viscosity for dissolving out polyester, respectively 864Pa.S and 588Pa.S, tensile viscosity difference are 276Pa.S respectively.Easily in dissolution polyester, the content of M-phthalic acid -5- sulfonate is calculated as 0.4wt% with S element.Fiber cross-sectional is observed with SEM, nylon 6 is outside easily dissolution polyester at U-shaped.Fabric all is prepared using core sheath composite fibre obtained above, fabric is reduced 35 minutes in the NaOH solution that concentration is 1%, bath raio is 150, fabric reduction rate is 53.3%,
Lightweight rate is 51.2%.After fabric is dyed, test washing fastness is 4~5 grades under JIS standard and GB standard.
Embodiment 4
70wt% nylon66 fiber (N66) and 30wt% are easily dissolved out into polyester slice and carry out spinning with embodiment 1, obtains composite fibre 66Den/36f.
At 290 DEG C, test nylon66 fiber and the easy tensile viscosity for dissolving out polyester, respectively 1035Pa.S and 588Pa.S, tensile viscosity difference are 447Pa.S respectively.Easily in dissolution polyester, the content of M-phthalic acid -5- sulfonate is calculated as 0.5wt% with S element.Fiber cross-sectional is observed with SEM, nylon 6 is outside easily dissolution polyester at U-shaped.Fabric all is prepared using core sheath composite fibre obtained above, fabric is reduced 25 minutes in the NaOH solution that concentration is 1%, bath raio is 150, fabric reduction rate is 32.1%, lightweight rate 31.5%.After fabric is dyed, test washing fastness is 4~5 grades under JIS standard and GB standard.
Embodiment 5
60wt% nylon 6 (N6) and 40wt% are easily dissolved out into polyester slice and carry out spinning with embodiment 1, obtains composite fibre 66Den/36f.
At 260 DEG C, test nylon 6 and the easy tensile viscosity for dissolving out polyester, respectively 1521Pa.S and 1191Pa.S, tensile viscosity difference are 330Pa.S respectively.Easily in dissolution polyester, the content of M-phthalic acid -5- sulfonate is calculated as 0.5wt% with S element.Fiber cross-sectional is observed with SEM, nylon 6 is outside easily dissolution polyester at c-type.Fabric all is prepared using core sheath composite fibre obtained above, fabric is reduced 30 minutes in the NaOH solution that concentration is 1%, bath raio is 150, fabric reduction rate is 43.0%, lightweight rate 41.2%.After fabric is dyed, test washing fastness is 4~5 grades under JIS standard and GB standard.
Embodiment 6
60wt% nylon 6 (N6) and 40wt% are easily dissolved out into polyester slice and carry out spinning with embodiment 1, obtains composite fibre 66Den/36f.
At 270 DEG C, test nylon 6 and the easy tensile viscosity for dissolving out polyester, respectively 1248Pa.S and 933Pa.S, tensile viscosity difference are 315Pa.S respectively.Easily in dissolution polyester, the content of M-phthalic acid -5- sulfonate is calculated as 0.5wt% with S element.Fiber cross-sectional is observed with SEM, nylon 6 is outside easily dissolution polyester at c-type.Fabric all is prepared using core sheath composite fibre obtained above, fabric is reduced 30 minutes in the NaOH solution that concentration is 1%, bath raio is 150, fabric reduction rate is 43.0%, lightweight rate 41.2%.After fabric is dyed, test washing fastness is 4~5 grades under JIS standard and GB standard.
Embodiment 7
60wt% nylon 6 (N6) and 40wt% are easily dissolved out into polyester slice and carry out spinning with embodiment 1, obtains composite fibre 66Den/36f.
At 280 DEG C, test nylon 6 and the easy tensile viscosity for dissolving out polyester, respectively 1035Pa.S and 735Pa.S, tensile viscosity difference are 300Pa.S respectively.Easily in dissolution polyester, the content of M-phthalic acid -5- sulfonate is calculated as 0.5wt% with S element.Fiber cross-sectional is observed with SEM, nylon 6 is outside easily dissolution polyester at c-type.Fabric all is prepared using core sheath composite fibre obtained above, fabric is reduced 30 minutes in the NaOH solution that concentration is 1%, bath raio is 150, fabric reduction rate is 43.0%, lightweight rate 41.2%.After fabric is dyed, test washing fastness is 4~5 grades under JIS standard and GB standard.
Comparative example 1
70wt% nylon 6 (N6) and 30wt% are easily dissolved out into polyester slice and carry out spinning with embodiment 1,
Obtain composite fibre 66Den/36f.
At 290 DEG C, test nylon66 fiber and the easy tensile viscosity for dissolving out polyester, respectively 528Pa.S and 588Pa.S, tensile viscosity difference are -60Pa.S respectively.Easily in dissolution polyester, the content of M-phthalic acid -5- sulfonate is calculated as 0.5wt% with S element.Fiber cross-sectional is observed with SEM, nylon 6 is outside easily dissolution polyester at c-type.Fabric all is prepared using core sheath composite fibre obtained above, fabric is reduced 25 minutes in the NaOH solution that concentration is 1%, bath raio is 150, fabric reduction rate is 32.2%, lightweight rate 31.5%.After fabric is dyed, test washing fastness is 1~2 grade under JIS standard, and test washing fastness is 1 grade under GB standard.
Claims (6)
- A kind of core sheath composite fibre, its mesotheca ingredient is polyamide, core component is easily to dissolve out polyester, it is characterised in that: the tensile viscosity N of the tensile viscosity M of the polyamide in the fiber and easily dissolution polyester meets the following conditions: under 255 DEG C or more of same temperature, M-N >=0Pa.s.
- Core sheath composite fibre according to claim 1, it is characterised in that: under 255 DEG C or more of same temperature, M-N >=100Pa.s.
- Core sheath composite fibre according to claim 1 or 2, it is characterised in that: the weight of polyamide and easily dissolution polyester is compound than being 70:30~30:70 in the fiber.
- Core sheath composite fibre according to claim 1 or 2, it is characterised in that: contain the M-phthalic acid -5- sulfonate that 0.3~0.5wt% of polyester total amount is accounted in terms of S element in the easy dissolution polyester.
- Composite fibre according to claim 1 or 2, it is characterised in that: on the cross section transverse of the fiber, the sheath ingredient polyamide is c-type or U-shaped.
- The application of core sheath composite fibre in the fabric described in a kind of claim 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610291855.3A CN107345320A (en) | 2016-05-05 | 2016-05-05 | A kind of core sheath composite fibre and its fabric |
| CN2016102918553 | 2016-05-05 | ||
| PCT/CN2017/082797 WO2017190647A1 (en) | 2016-05-05 | 2017-05-03 | Core-sheath complex fibre and fabric thereof |
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| CN108884599A true CN108884599A (en) | 2018-11-23 |
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| CN201610291855.3A Pending CN107345320A (en) | 2016-05-05 | 2016-05-05 | A kind of core sheath composite fibre and its fabric |
| CN201780018084.3A Pending CN108884599A (en) | 2016-05-05 | 2017-05-03 | A kind of core sheath composite fibre and its fabric |
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| JP (1) | JP2019515157A (en) |
| KR (1) | KR20190005159A (en) |
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| WO (1) | WO2017190647A1 (en) |
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| JP6636215B1 (en) * | 2018-03-29 | 2020-01-29 | 三井化学株式会社 | Non-woven fabric and filter |
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| JP2004137319A (en) * | 2002-10-16 | 2004-05-13 | Toray Ind Inc | Copolyester composition and conjugate fiber obtained from the same |
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2016
- 2016-05-05 CN CN201610291855.3A patent/CN107345320A/en active Pending
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2017
- 2017-05-03 KR KR1020187031892A patent/KR20190005159A/en active IP Right Grant
- 2017-05-03 WO PCT/CN2017/082797 patent/WO2017190647A1/en active Application Filing
- 2017-05-03 JP JP2018558142A patent/JP2019515157A/en active Pending
- 2017-05-03 CN CN201780018084.3A patent/CN108884599A/en active Pending
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| KR20190005159A (en) | 2019-01-15 |
| CN107345320A (en) | 2017-11-14 |
| WO2017190647A1 (en) | 2017-11-09 |
| JP2019515157A (en) | 2019-06-06 |
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