CN104562250A - Micro-porous fine denier nylon 6 three-difference fiber and preparation method and application thereof - Google Patents
Micro-porous fine denier nylon 6 three-difference fiber and preparation method and application thereof Download PDFInfo
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- CN104562250A CN104562250A CN201410696711.7A CN201410696711A CN104562250A CN 104562250 A CN104562250 A CN 104562250A CN 201410696711 A CN201410696711 A CN 201410696711A CN 104562250 A CN104562250 A CN 104562250A
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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
- D01D13/00—Complete machines for producing artificial threads
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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
- D01D5/08—Melt spinning methods
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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
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
- D01D5/247—Discontinuous hollow structure or microporous structure
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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
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- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Knitting Of Fabric (AREA)
Abstract
The invention relates to the field of spinning materials, aims at solving the problems that a technology method for producing a porous fine denier nylon 6 POY/DTY (polyester pre-oriented yarn/draw textured yarn) interlaced composite fiber by a two-step method in the prior art is poor in dyeing property, poor in quality, poor in hand feeling, complicated in process, long in flow, high in cost and the like. The invention provides a micro-porous fine denier nylon 6 three-difference fiber and a preparation method thereof. The breaking strength of the fiber is 3.8-4.8cN/dtex; the elongation at break is 20%-40%; the boiling water shrinkage rate is 25%-40%; the crimp contraction rate is 8%-20%. The fiber disclosed by the invention is low in cost, high in yield, good in product quality and high in additional value; the production technology is easy to regulate and control.
Description
Technology neighborhood
The present invention relates to spinning material field, particularly relate to the production method of the different fiber of a kind of porous micro Denier nylon 6 three.
Background technology
At present, the thickness of textile fabric can be characterized by filament number, usual filament number be the chemical fibre of about 1.1dtex fine count fiber, and the chemical fibre that filament number is about 0.55dtex is called superfine Denier fibre.Filament number is that the fiber of below 0.33dtex level is called fine-denier fiber.The features such as nylon fabric has absorbing sweat, lightweight, toughness is good, resilience good, antiacid alkali, are best suited for one of man-made fabric of mankind's dress.Application on clothes is also one of main application of nylon fiber.The filament number of the nylon 6 fiber using direct melt spinning method to obtain can reach 0.80dtex.The product obtained by the fibrous woven of such fiber number, such as garment material etc., have lot of advantages, and therefore application space, market is wide.But along with the raising of people's living standard, the requirement for textiles is also more and more higher, need some existing defects that can overcome textiles badly.Such as existing chemical fiber garment fabric, because its fibre single thread fiber number is slightly large, and cause that its feel is hardened, comfortableness is poor, absorbent ventilate is poor, etc. problem.In order to address these problems, it is an important subject that the super fine denier of textile fabric or micro Denier change into.
The diameter of superfine Denier fibre and fine-denier fiber is much thinner than conventional chemical fiber (filament number is generally about 3-6dtex), and the technical difficulty manufacturing this kind of chemical fibre is quite large, needs to select appropriate spinning material and auxiliary agent.Also need reasonably to select spining technology scheme and strictly control melting, spinning, cool, oil, drawing-off, every production process such as winding.But for nylon 6 fiber, use the technology of melting direct fabrics method manufacture super fine denier or micro Denier nylon 6 fiber still immature at present.
At present, prepare the production technology of porous fine denier nylon 6POY/DTY composite fibre, general employing two step method production Technology route: the production process first adopting melt-spun POY, then POY is made DTY, again POY and DTY is carried out interlacing compound afterwards.The technological process of conventional two-step method is long, manufacturing procedure complexity, dyeability and effect is poor, poor product quality, and production cost is high, and efficiency is low.
Application number be 201110337465.2 Chinese patent disclose the preparation method of a kind of porous micro Denier polyester POY, FDY interlacing compound silk, simultaneously it a kind ofly produce POY silk and FDY silk and the preparation method got up by their direct combination, and described preparation method comprises the following steps: that a, polyester slice carry out drying; B, dried polyester slice enter screw rod heating and melting, form polyester fondant; C, polyester fondant carry out flow measurement by two measuring pumps, then pulled out respectively by two blocks of spinneretss simultaneously and form two synnemas, and cooling curing is shaped; D, after oiling, wherein a branch ofly after pre-network, stretching and HEAT SETTING, obtain FDY silk, another bundle is drawn to two godet rollers and obtains POY silk; E, FDY silk and POY silk simultaneously input nozzle carry out interlacing compound, and through described coiler device coiling and molding.But this invention to as if polyester fiber, exist obviously different from nylon fiber spinning requirement: comprise screw-rod structure, melt temperature, filament spinning component configure, monomer suction, retarded cooling process, finish, setting temperature, spinning speed etc. all exist significant difference, the spinning technique of nylon fiber requires higher, more difficult realization.
Summary of the invention
The dyeability that the technology method producing porous fine denier nylon 6POY/DTY intermingled composite fiber for solving two step method in prior art exists is poor, of poor quality, feel is poor, complex process, long flow path, high in cost of production problem, the invention provides different fiber of a kind of porous micro Denier nylon 6 three and preparation method thereof and application, fiber cost of the present invention be low, output is high, good product quality, added value are high, production Technology be easy to regulation and control.
The present invention is achieved through the following technical solutions: the different fiber of a kind of porous micro Denier nylon 6 three, and the fracture strength of described fiber is 3.8 ~ 4.8cN/dtex, and elongation at break is 20 ~ 40%; Boiling water shrinkage is 25 ~ 40%; Crimp contraction is 8 ~ 20%.
Described three differently refer to iso-fineness, different elongation and different contraction.
The preparation method of the different fiber of porous micro Denier nylon 6 three of the present invention is:
(1) functional nylon-6 slice is prepared;
The preparation method of functional nylon-6 slice is: add the second main group metal salt compounds by before caprolactam monomer polymerization, after melting mixing dewaters, original position initiated polymerization obtains functional nylon-6 slice, and wherein the weight of the second main group metal salt compounds is 0.001 ~ 0.05% of caprolactam monomer weight.
Modifier second main group metal salt compounds is added before caprolactam monomer polymerization, ensure that metallic compound is dispersed in nylon-6 matrix body, and the interaction given full play of between slaine and nylon molecules is to strengthen modification power, is polymerized rear obtained micro Denier special-purpose nylon 6 resin and has spun porous micro Denier nylon 6 long filament; Concrete preparation method is as described in CN102161755B patent: constantly uniform dissolution had the caprolactam monomer melt of the second main group metal salt compounds to send in normal pressure straight type continuous polymerization pipe (being called for short straight type VK to manage) by feed pump, material is by ring opening agent initiated polymerization, polymer melt through baffle plate layer by layer downstream to bottom VK pipe, taken out of by discharging pump, with liquid level in holding tube.By resulting polymers melt through washing pelletizing, through vacuumize, to remove moisture and small-molecule substance.
(2) functional nylon-6 slice, drying, screw rod melting, casing, monomer suction, slow cooling, ring blow, high speed spinning, winding obtained porous micro Denier nylon 6 pre-oriented yarn (POY) afterwards;
Concrete grammar is for by functional nylon-6 slice resin heating and melting enter spinning manifold after extruding and be quantitatively pressed in filament spinning component by molten mass through measuring pump in single screw extrusion machine, sprayed by specific spinneret orifice, pre-tow is shaping through monomer pumping device, annealing device and ring quenching admittedly, then obtains a kind of porous micro Denier nylon 6POY long filament through oil boundling and winding.
Melt spinning (functional nylon-6 slice resin heating and melting) temperature is 250 ~ 280 DEG C, and screw pressure during described screw machine melting is 120 ~ 160kg/cm
2, screw speed is 15 ~ 30r/min, the screw diameter 35 ~ 66mm of screw machine, draw ratio 28 ~ 35.As preferably, containing static, dynamic mixer in screw machine.
Described spinning body temperature is 250 ~ 260 DEG C.
Functional nylon-6 slice is through melt spinning, and wherein in filament spinning component, the hole count of spinnerets is 68 ~ 196, and aperture is 0.10 ~ 0.25mm, and spinnerets draw ratio is 3.0 ~ 5.0, and spinnerets draw ratio is microcell length and the ratio of micro-pore diameter.Through monomer suction, annealing device, ring blast-cold but, then through boundling and the coiling and molding of oiling, wherein winding speed is 2900 ~ 4300m/min to tow, obtains porous micro Denier nylon 6 pre-oriented yarn (POY).
Annealing device length is 15 ~ 20cm, and described annealing device is the rectangular metal partion (metp) be arranged on below spinning head and monomer pumping device, and with monomer pumping device compact siro spinning technology.Because spun fibre single thread fiber number is very little, tow specific area is comparatively large, and cooling velocity is very fast, causes fiber crystallization to become fragile, should not stretch further, need add annealing device.
In addition, during nylon 6 spinning, easily decompose and produce caprolactam monomer or oligomer.If remove not in time, can do ribbon and have an impact with follow-up dyeing and finishing application; Especially for porous micro Denier nylon 6 fiber, affect more obvious, therefore need to add monomer pumping device.
The wind-warm syndrome 18 ~ 30 DEG C of blowing blowout, humidity 60 ~ 80%, wind speed 0.2 ~ 0.5m/s.Because tow is porous, in order to the bar better controlling fiber is done, spinning head need adopt inner ring blowing device to cool, and to make tow cooling even, bar is done homogeneous, and dyeability is good.
Fiber through ring quenching oils through oil thrower boundling, and finish used in the described boundling that oils is account for finish distilled water emulsion weight 8 ~ 12%.
The filament number of porous micro Denier nylon 6 pre-oriented yarn obtained is 0.11 ~ 0.55dtex, and elongation at break is 60 ~ 90%, and fracture strength is 3.2 ~ 4.3cN/dtex.
(3) tow of porous micro Denier nylon 6 pre-oriented yarn (POY) after seal wire, first roller, the first hot case heating, coldplate cooling, false twisting enters the nozzle of interlace and carries out compound together with another undressed porous micro Denier nylon 6 pre-oriented yarn fiber, after carry out drawing-off through the second roller again, the second hot case heating, oiling roller obtain the different fiber of porous micro Denier nylon 6 three after carrying out coiling and molding after oiling.
First heater temperature is 70 ~ 120 DEG C, and the second heater temperature is 110 ~ 155 DEG C, and D/Y ratio is 1.20 ~ 1.55, and frictional disk material is pottery, and drafting multiple is 1.10 ~ 1.35, and process velocity is 350 ~ 700m/min.
Preparation method of the present invention, operation is simple, convenient operation, the different fiber of porous micro Denier nylon 6 three that fiber number is less than 0.50dtex can be obtained, and in preparation process, nylon 6 fiber tow can not rupture substantially, and the mechanical property of the different fiber of porous micro Denier nylon 6 three of gained is fine, and fiber number is minimum can reach 0.10dtex.Significantly improve technological process in conventional method long, manufacturing procedure is complicated, dyeability and effect is poor, poor product quality, and production cost is high, and efficiency is low to be waited not enough, improves scientific and technological content and the added value of micro Denier nylon 6 fiber product.
The application that the different fiber of porous micro Denier nylon 6 three of the present invention is controled oneself in fabric field in high-end chemical fibre market and cold-proof underwear, function.The described different fiber of porous micro Denier nylon 6 three be a kind of by one or more strands of micro Denier nylon 6POY long filament through seal wire, first roller, the first hot case heats, coldplate cools, tow after false twisting enters modified network nozzle together with another one or more strands of undressed micro Denier nylon 6POY fiber, carry out network combined under airflow function, after carry out drawing-off through the second roller again, the second hot case heating, oiling roller carry out coiling and molding after oiling and obtain.The different fiber of this porous micro Denier nylon 6 three has specialty fibers network fine structure, sandwich construction and the outward appearance similar to natural cotton fiber.Compared with the fabric be made into general fiber, this twice-laid fabric has that moisture absorbing and sweat releasing is good, heterochromatosis is good, warmth retention property is good, bulkiness is good, feel sliding glutinous, elasticity is controled oneself, wear the features such as dry and comfortable, the performances such as COLOR FASTNESS, ABRASION RESISTANCE, elastic recovery surmount natural fabric, added value is high, is therefore widely used in chemical fibre market, middle and high end and cold-proof underwear, function and controls oneself fabric field.
Compared with prior art, the invention has the beneficial effects as follows:
(1) three different fibers of the present invention are that a kind of production cost is low, output is high, good product quality, added value are high;
(2) production Technology is easy to regulation and control.
Specific implementation method
Below by specific embodiment, the present invention is described in further detail.In an embodiment, if not refer in particular to, all equipment and raw material etc. all can be buied from market or the industry is conventional; Method in following embodiment, if no special instructions, is the conventional method of this area.
Main raw material:
Caprolactam monomer: Zhejiang Heng Yi caprolactam Co., Ltd.
Prepare functional nylon-6 slice according to the preparation method of CN102161755B patent, be incorporated in caprolactam monomer by the second main group metal compound, after melting mixing dewaters, original position initiated polymerization obtains.Wherein, based on caprolactam monomer total weight, the weight of the compound of the second main group metal is 0.001 ~ 0.05%.Functional nylon-6 slice described in the present embodiment is caprolactam monomer and CaCl
2in-situ polymerization forms, and fills a prescription as shown in table 1.
Table 1: containing CaCl
2nylon 6 resin formula
| Composition | Mass fraction |
| Caprolactam monomer | 100 |
| Slaine A CaCl 2 | 0.03 |
| Ring opening agent (distilled water) | 1.5 |
| Molecular weight stabilizer (adipic acid) | 0.3 |
Embodiment 1
Spinning machine is delivered to after being extruded by screw extruder by functional nylon-6 slice molten mass, through measuring pump, molten mass is quantitatively pressed in spinning components, by the spinneret orifice on spinnerets, nylon 6 melt is extruded with filament state, pre-tow is admittedly through monomer pumping device, annealing device, dry through ring again, cooling forming, oil boundling and winding obtains micro Denier nylon 6POY fibrous finished product, wherein, melt screw extruder Zhong Ge district temperature be 255 DEG C, 258 DEG C, 259 DEG C, 259 DEG C respectively, spinning temperature is 257 DEG C; The spinnerets hole count adopted is 68, and aperture is 0.25mm, and length is 0.7mm; Annealing device length is 15cm, by adjustment measuring pump rotating speed, obtains the porous micro Denier nylon 6POY fiber that undrawn yarn fiber number is 0.55dtex.The finish used in boundling that oils is account for finish distilled water emulsion weight 9%, and winding speed is 4200m/min, and Mechanics Performance Testing intensity reaches 4.3cN/dtex, and elongation at break is 60%.Subsequently the tow of produced porous micro Denier nylon 6POY long filament after seal wire, first roller, the first hot case heating, coldplate cooling, false twisting is entered the nozzle of interlace together with another undressed porous micro Denier nylon 6POY fiber and carries out compound, after carry out drawing-off through the second roller again, the second hot case heating, oiling roller carry out coiling and molding after oiling.Wherein the first heater temperature is 70 DEG C, and the second heater temperature controls at 155 DEG C; D/Y ratio is selected general 1.55; Frictional disk material is pottery; Drafting multiple is 1.10; Process velocity is 700m/min, obtains the different fiber 1 of a kind of porous micro Denier nylon 6 three.
The fracture strength of the different fiber 1 of porous micro Denier nylon 6 three is 4.7cN/dtex, and elongation at break is 35%; Boiling water shrinkage is 38%; Crimp contraction is 18%.
Embodiment 2
Spinning machine is delivered to after being extruded by screw extruder by functional nylon-6 slice molten mass, through measuring pump, molten mass is quantitatively pressed in spinning components, by the spinneret orifice on spinnerets, nylon 6 melt is extruded with filament state, pre-tow is admittedly through monomer pumping device, annealing device, dry through ring again, cooling forming, oil boundling and winding obtains micro Denier nylon 6POY fibrous finished product, wherein, melt screw extruder Zhong Ge district temperature be 257 DEG C, 260 DEG C, 261 DEG C, 261 DEG C respectively, spinning temperature is 259 DEG C; The spinnerets hole count adopted is 96, and aperture is 0.22mm, and length is 0.7mm; Winding speed is 3900m/min, annealing device length is 20cm, by adjustment measuring pump rotating speed, obtain the porous micro Denier nylon 6POY fiber that undrawn yarn fiber number is 0.40dtex, the finish used in boundling that oils is account for finish distilled water emulsion weight 10%, Mechanics Performance Testing intensity reaches 3.9cN/dtex, and elongation at break is 70%.Subsequently the tow of produced porous micro Denier nylon 6POY long filament after seal wire, first roller, the first hot case heating, coldplate cooling, false twisting is entered the nozzle of interlace together with another undressed porous micro Denier nylon 6POY fiber and carries out compound, after carry out drawing-off through the second roller again, the second hot case heating, oiling roller carry out coiling and molding after oiling.Wherein the first heater temperature is 100 DEG C, and the second heater temperature controls at 120 DEG C; D/Y ratio is selected general 1.40; Frictional disk material is pottery; Drafting multiple is 1.20; Process velocity is 550m/min, obtains the different fiber 2 of a kind of porous micro Denier nylon 6 three.
The fracture strength of the different fiber 2 of porous micro Denier nylon 6 three is 4.45cN/dtex, and elongation at break is 30%; Boiling water shrinkage is 32%; Crimp contraction is 15%.
Embodiment 3
Spinning machine is delivered to after being extruded by screw extruder by functional nylon-6 slice molten mass, through measuring pump, molten mass is quantitatively pressed in spinning components, by the spinneret orifice on spinnerets, nylon 6 melt is extruded with filament state, pre-tow is admittedly through monomer pumping device, annealing device, dry through ring again, cooling forming, oil boundling and winding obtains micro Denier nylon 6POY fibrous finished product, wherein, melt screw extruder Zhong Ge district temperature be 257 DEG C, 260 DEG C, 261 DEG C, 261 DEG C respectively, spinning temperature is 259 DEG C; The spinnerets hole count adopted is 136, and aperture is 0.22mm, and length is 0.7mm; Annealing device length is 18cm, winding speed is 3500m/min, and specification is filament number 0.28dtex, and finish used in the boundling that oils is account for finish distilled water emulsion weight 12%, Mechanics Performance Testing intensity reaches 3.6cN/dtex, and elongation at break is 80%.Subsequently the tow of produced porous micro Denier nylon 6POY long filament after seal wire, first roller, the first hot case heating, coldplate cooling, false twisting is entered the nozzle of interlace together with another undressed porous micro Denier nylon 6POY fiber and carries out compound, after carry out drawing-off through the second roller again, the second hot case heating, oiling roller carry out coiling and molding after oiling.Wherein the first heater temperature is 120 DEG C, and the second heater temperature controls at 130 DEG C; D/Y ratio is selected general 1.30; Frictional disk material is pottery; Drafting multiple is 1.25; Process velocity is 450m/min, obtains the different fiber 3 of a kind of porous micro Denier nylon 6 three.
The fracture strength of the different fiber 3 of porous micro Denier nylon 6 three is 4.15cN/dtex, and elongation at break is 24%; Boiling water shrinkage is 28%; Crimp contraction is 12%.
Embodiment 4
Spinning machine is delivered to after being extruded by screw extruder by functional nylon-6 slice molten mass, through measuring pump, molten mass is quantitatively pressed in spinning components, by the spinneret orifice on spinnerets, nylon 6 melt is extruded with filament state, pre-tow is admittedly through monomer pumping device, annealing device, dry through ring again, cooling forming, oil boundling and winding obtains porous micro Denier nylon 6POY fibrous finished product, wherein, melt is 259 DEG C, 262 DEG C, 262 DEG C, 262 DEG C in the temperature in screw extruder Zhong Ge district respectively, and spinning temperature is 259 DEG C; The spinnerets hole count adopted is 196, and aperture is 0.15mm, and length is 0.6mm; Annealing device length is 17cm, and winding speed is 2900m/min, by adjustment measuring pump rotating speed, obtains the porous micro Denier nylon 6POY fiber that undrawn yarn fiber number is 0.137dtex.The finish used in boundling that oils is account for finish distilled water emulsion weight 8%, and Mechanics Performance Testing intensity reaches 3.3cN/dtex, and elongation at break is 87%.Subsequently the tow of produced porous micro Denier nylon 6POY long filament after seal wire, first roller, the first hot case heating, coldplate cooling, false twisting is entered the nozzle of interlace together with another undressed porous micro Denier nylon 6POY fiber and carries out compound, after carry out drawing-off through the second roller again, the second hot case heating, oiling roller carry out coiling and molding after oiling.Wherein the first heater temperature is 90 DEG C, and the second heater temperature controls at 110 DEG C; D/Y ratio is selected general 1.25; Frictional disk material is pottery; Drafting multiple is 1.35; Process velocity is 350m/min, obtains the different fiber 4 of a kind of porous micro Denier nylon 6 three.
The fracture strength of the different fiber 4 of porous micro Denier nylon 6 three is 4.0cN/dtex, and elongation at break is 20%; Boiling water shrinkage is 25%; Crimp contraction is 9%.
Above preferred embodiment, just for instruction and explanation of content of the present invention, does not form the restriction to content of the present invention.Although inventor enumerates in more detail to invention has been, but, the content that those skilled in the art discloses according to summary of the invention part and embodiment, various amendment can be made or/and it is obvious for supplementing or adopting similar mode to substitute to described specific embodiment, and technique effect of the present invention can be realized, therefore, repeat no longer one by one herein.The term occurred in the present invention, for the elaboration of technical solution of the present invention and understanding, is not construed as limiting the invention.
Claims (7)
1. the different fiber of porous micro Denier nylon 6 three, is characterized in that, the fracture strength of described fiber is 3.8 ~ 4.8cN/dtex, and elongation at break is 20 ~ 40%; Boiling water shrinkage is 25 ~ 40%; Crimp contraction is 8 ~ 20%.
2. a preparation method for the different fiber of porous micro Denier nylon 6 three as claimed in claim 1, it is characterized in that, described preparation method is:
(1) functional nylon-6 slice preparation;
(2) functional nylon-6 slice, drying, screw rod melting, casing, monomer suction, slow cooling, ring blow, high speed spinning, winding obtained porous micro Denier nylon 6 pre-oriented yarn afterwards;
(3) tow of porous micro Denier nylon 6 pre-oriented yarn after seal wire, first roller, the first hot case heating, coldplate cooling, false twisting enters the nozzle of interlace and carries out compound together with another undressed porous micro Denier nylon 6 pre-oriented yarn fiber, after carry out drawing-off through the second roller again, the second hot case heating, oiling roller obtain the different fiber of porous micro Denier nylon 6 three after carrying out coiling and molding after oiling.
3. the preparation method of the different fiber of porous micro Denier nylon 6 three according to claim 2, it is characterized in that, in step (1), the preparation method of functional nylon-6 slice is: add the second main group metal salt compounds by before caprolactam monomer polymerization, after melting mixing dewaters, original position initiated polymerization obtains functional nylon-6 slice, and wherein the weight of the second main group metal salt compounds is 0.001 ~ 0.05% of caprolactam monomer weight.
4. the preparation method of the different fiber of porous micro Denier nylon 6 three according to claim 2, it is characterized in that, in step (2), functional nylon-6 slice is through melt spinning, wherein in filament spinning component, the hole count of spinnerets is 68 ~ 196, aperture is 0.10 ~ 0.25mm, and spinnerets draw ratio is 3.0 ~ 5.0; Tow through monomer suction, annealing device, ring blast-cold but, then after first, second, and third godet roller coiling and molding, wherein winding speed is 2900 ~ 4300m/min, obtains porous micro Denier nylon 6 pre-oriented yarn.
5. the preparation method of the different fiber of porous micro Denier nylon 6 three according to claim 4, it is characterized in that, the filament number of porous micro Denier nylon 6 pre-oriented yarn is 0.11 ~ 0.55dtex, and elongation at break is 60 ~ 90%, and fracture strength is 3.2 ~ 4.3cN/dtex.
6. the preparation method of the different fiber of porous micro Denier nylon 6 three according to claim 2, it is characterized in that, in step (3), the first heater temperature is 70 ~ 120 DEG C, second heater temperature is 110 ~ 155 DEG C, D/Y ratio is 1.20 ~ 1.55, frictional disk material is pottery, and drafting multiple is 1.10 ~ 1.35, and process velocity is 350 ~ 700m/min.
7. a porous micro Denier nylon 6 three different fiber application of controling oneself in fabric field in high-end chemical fibre market and cold-proof underwear, function as defined in claim 1.
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| CN106400143A (en) * | 2015-08-03 | 2017-02-15 | 展颂股份有限公司 | Nylon 66 hollow fiber, manufacture method thereof and production equipment |
| CN108728974A (en) * | 2018-06-21 | 2018-11-02 | 福建恒捷实业有限公司 | A kind of production method of the imitative hair nylon fibre of imitative fiber crops |
| CN108728973A (en) * | 2018-06-21 | 2018-11-02 | 福建恒捷实业有限公司 | A kind of production method of imitative hair nylon fibre |
| US10344401B2 (en) | 2015-08-03 | 2019-07-09 | Chain Yarn Co., Ltd. | Method for manufacturing nylon 66 hollow fiber |
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