CN104975362A - Polyamide high-contraction composite split-lobe type fully drawn yarn and preparation method thereof - Google Patents
Polyamide high-contraction composite split-lobe type fully drawn yarn and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a polyamide high-contraction composite split-lobe type fully drawn yarn and a preparation method thereof. The fully drawn yarn is made of two-component composite fibers combining high-contraction components and polyamide components. The cross section is in the shape of a split lobe. The ratio of the weight percentage of the polyamide components to the weight percentage of the high-contraction components is 55%-65% : 35%-45%. The fully drawn yarn is a novel elastic composite fiber which is highly elastic without spandex. Problems of a difficulty in dyeing, excessive elasticity, complex weaving, unstable size of fabrics and aging in the use process of the spandex are solved. The fully drawn yarn has higher fineness and intensity performance.
Description
Technical field
The present invention relates to textile technology field, especially a kind of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) and preparation method thereof.
Background technology
Current elastic fibers take spandex as representative, but spandex has many deficiencies to need to improve, such as Final finishing is afraid of chlorine drift, bad sizing, elastic instability, badly arranges, is easily bubbled, elasticity surplus, wear stuffy etc.E.I.Du Pont Company develops polytrimethylene terephthalate (PTT), is that one has flexible polyester fiber, can Some substitute spandex, but at present due to reasons such as starting monomer costs, present stage also cannot volume production.Also have polybutylene terephthalate (PBT) (PBT) etc. in addition, yet do not reach volume production requirement.Polyethylene terephthalate (PET) is the polyester fiber that current production rate is the highest, is also the maximum chemical fibre of output.But polyester fiber does not have elasticity, therefore fabric feel, comfort level etc. are difficult to improve, and more cannot independently use products such as the higher occasion such as swimming suits of aeroelastic requirements at some.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provides a kind of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) and preparation method thereof.
The technical solution adopted for the present invention to solve the technical problems is: a kind of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), described polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) is the bi-component composite fiber be combined with each other by high convergency component and polyamide fibre component, and cross section is rip-panel shape, described polyamide fibre component: the percentage by weight of high convergency component is 55% ~ 65%:35% ~ 45%.
Particularly, the percentage by weight of polyamide fibre component is 60%, and the percentage by weight of high convergency component is 40%.
Another mix proportion scheme: the percentage by weight of polyamide fibre component is 62.5%, the percentage by weight of high convergency component is 37.5%.
Another mix proportion scheme: the percentage by weight of polyamide fibre component is 55%, the percentage by weight of high convergency component is 45%.
Another mix proportion scheme: the percentage by weight of polyamide fibre component is 65%, the percentage by weight of high convergency component is 35%.
Further, the slicing characteristics viscosity of described high convergency component is 0.7 ~ 1.0dl/g, and the slicing characteristics viscosity of described polyamide fibre component is 0.4 ~ 0.6dl/g, and between described high convergency component and polyamide fibre component differences in viscosity between 0.2 ~ 1.2.
A preparation method for polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), comprises the following steps:
(1) the high convergency section being, 35% ~ 45% percentage by weight with consumption is the first raw material, enter the first material continuous drying tower, make the dry section of high convergency of moisture content < 50ppm, the melt extruded entering the first screw extruder becomes can spinning polyester fondant, the melt extruded process of the first screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and this polyester fondant is transported in spinning manifold, and be evenly distributed in composite component further and go, be the first component;
(2) slices of caprone being, 55% ~ 65% percentage by weight with consumption is the second raw material, enter the second material continuous drying tower, make the dry section of polyamide fibre of moisture content < 50ppm, then the second screw extruder is entered, becoming through the melt extruded of the second screw extruder can the polyamide fibre melt of spinning, the melt extruded process of the second screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and this polyamide fibre melt is also transported in spinning manifold, and be evenly distributed to further in composite component, be the second component;
(3), FDY spinning: use rip-panel type spinnerets in spinning process, adopt the first hot-rolling GR1 in winding process, the second hot-rolling GR2 carries out stretching and winding.
Particularly, in described step (1), the melt extruded process of described first screw extruder is provided with 5 sections of thermals treatment zone, and the heating-up temperature in each district is 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C.
Particularly, in described step (2), the melt extruded process of described second screw extruder is provided with 3 sections of thermals treatment zone, and the heating-up temperature in each district is 265 ~ 285 DEG C, 265 ~ 285 DEG C, 265 ~ 285 DEG C.
Particularly, in described step (3), the active line speed of described first hot-rolling GR1 is 2000 ~ 2400m/min, and the operating temperature of described first hot-rolling GR1 is 90 ~ 105 DEG C; The active line speed of described second hot-rolling GR2 is 4200 ~ 4500m/min, and the operating temperature of described second hot-rolling GR2 is 130 ~ 155 DEG C.
The invention has the beneficial effects as follows: polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) of the present invention, it is kind of a novel elastic composite fibre, containing spandex, but not there is good elasticity, problems such as which solving the not easy dyeing of spandex, elastic force surplus, weave complexity, unstable and in use the spandex of fabric size is aging, its polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) formed has good fiber number and stronger strength character.
The fabric made by present invention process is adopted to have following characteristics: 1, elastic force is light, comfortable, lasting; 2, fabric is soft, well-pressed, drapability is good; 3, cloth cover is smooth, wrinkle resistance good; 4, hydroscopic fast-drying, feel is smooth 5, good stability of the dimension, is easy to answer.Remarkable wearability makes it be widely used in trousering, cowboy, sportswear, the fields such as high-grade women's dress.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the cross section structure schematic diagram of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) in the specific embodiment of the invention;
Detailed description of the invention
Boiling water shrinkage and the dry-hot shrinkage of usual PET are smaller, its high-shrinkage fibre (HighShrinkageFiber is called for short HSF) is then by the physics of PET resin or chemical modification and obtained a kind of fiber, be generally defined as boiling water shrinkage or dry-hot shrinkage higher than 25% fibre in differentiation.Its feature be fiber when heat treatment, shrinkage factor can reach 25% ~ 70%, utilizes this feature can produce various fabric with mannerism.This fiber and other fibre-coated, mixed fine and twist with the fingers, strong, the stylish bubble of third dimension, crepe fabrics can be weaved, for garment material, woollen blanket, dermatine etc., particularly carry out intertexture with composite ultrafine fiber and can produce high-grade SUEDE FABRIC, imitative peach face, high-density fabric, silk like fabric fabric.In addition, PET high-shrinkage fibre has good insulating properties, is suitable as the clad material of cable, transformer, therefore high-shrinkage fibre wide market.High-shrinkage fibre is a kind of fiber with potential shrinkage, introduces copolymer composition in this fiber.When this fiber is heated at moderate temperatures, because its degree of crystallinity is low, little to the binding force of macromolecular chain segment motion, make the large molecule of original high orientation (amorphous area) produce disorientation, thus fiber high convergency macroscopically occurs.Dacron high-shrunk filament has the supramolecular structure of low crystallization, high orientation.In process implementing process, the measure that chemical modification must be adopted to combine with physical modification, ensures its highly shrinkable and stability.Therefore, the HSPET of modification by copolymerization should be adopted, simultaneously in drying, spinning, stretching, heat-setting process, adopt cryogenic tensile, cryogenic shaping process, make it can obtain the structure of high orientation, low crystallization.
The embodiment of the invention discloses a kind of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) and preparation method thereof.Those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention.Application of the present invention is described by preferred embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope application as herein described is changed or suitably change with combination, realize and apply the technology of the present invention.
In order to understand the present invention further, below in conjunction with embodiment, the present invention is described in detail.
Embodiment 1
A kind of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) be the bi-component composite fiber be combined with each other by high convergency component and polyamide fibre component, and cross section is rip-panel shape, described polyamide fibre component: the percentage by weight of high convergency component is 62.5%:37.5%.
The slicing characteristics viscosity of high convergency component is 0.7 ~ 1.0dl/g, and the slicing characteristics viscosity of polyamide fibre component is 0.4 ~ 0.6dl/g, and between high convergency component and polyamide fibre component, differences in viscosity is between 0.2 ~ 1.2.
A preparation method for polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), comprises the following steps:
(1), doing section 30kg with high convergency is the first raw material, enter the first material continuous drying tower, make the dry section of high convergency of moisture content < 50ppm, the melt extruded entering the first screw extruder becomes can spinning polyester fondant, the melt extruded process of the first screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and this polyester fondant is transported in spinning manifold, and be evenly distributed in composite component further and go, be the first component;
(2), doing section 50kg with polyamide fibre is the second raw material, enter the second material continuous drying tower, make the dry section of polyamide fibre of moisture content < 50ppm, then the second screw extruder is entered, becoming through the melt extruded of the second screw extruder can the polyamide fibre melt of spinning, and the melt extruded process of the second screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and is also transported in spinning manifold by this polyamide fibre melt, and be evenly distributed to further in composite component, be the second component;
(3), FDY spinning: use rip-panel type spinnerets in spinning process, adopt the first hot-rolling GR1 in winding process, the second hot-rolling GR2 carries out stretching and winding.
Particularly, in described step (1), the melt extruded process of described first screw extruder is provided with 5 sections of thermals treatment zone, and the heating-up temperature in each district is 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C.
Particularly, in described step (2), the melt extruded process of described second screw extruder is provided with 3 sections of thermals treatment zone, and the heating-up temperature in each district is 265 ~ 285 DEG C, 265 ~ 285 DEG C, 265 ~ 285 DEG C.
Particularly, in described step (3), the active line speed of described first hot-rolling GR1 is 2000 ~ 2400m/min, and the operating temperature of described first hot-rolling GR1 is 90 ~ 105 DEG C; The active line speed of described second hot-rolling GR2 is 4200 ~ 4500m/min, and the operating temperature of described second hot-rolling GR2 is 130 ~ 155 DEG C.
The performance parameter of final finished polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY): fiber number: 82, extends: 39.79%, intensity: 4.35, boiling water: 9.1.
It can thus be appreciated that this polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) has good fiber number and stronger strength character.
Embodiment 2
A kind of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) is the bi-component composite fiber be combined with each other by high convergency component and polyamide fibre component, and cross section is rip-panel shape, the percentage by weight of polyamide fibre component is 55%, and the percentage by weight of high convergency component is 45%.
The slicing characteristics viscosity of high convergency component is 0.7 ~ 1.0dl/g, and the slicing characteristics viscosity of polyamide fibre component is 0.4 ~ 0.6dl/g, and between high convergency component and polyamide fibre component, differences in viscosity is between 0.2 ~ 1.2.
A preparation method for polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), comprises the following steps:
(1), doing section 45kg with high convergency is the first raw material, enter the first material continuous drying tower, make the dry section of high convergency of moisture content < 50ppm, the melt extruded entering the first screw extruder becomes can spinning polyester fondant, the melt extruded process of the first screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and this polyester fondant is transported in spinning manifold, and be evenly distributed in composite component further and go, be the first component;
(2), doing section 55kg with polyamide fibre is the second raw material, enter the second material continuous drying tower, make the dry section of polyamide fibre of moisture content < 50ppm, then the second screw extruder is entered, becoming through the melt extruded of the second screw extruder can the polyamide fibre melt of spinning, and the melt extruded process of the second screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and is also transported in spinning manifold by this polyamide fibre melt, and be evenly distributed to further in composite component, be the second component;
(3), FDY spinning: use rip-panel type spinnerets in spinning process, adopt the first hot-rolling GR1 in winding process, the second hot-rolling GR2 carries out stretching and winding.
Particularly, in described step (1), the melt extruded process of described first screw extruder is provided with 5 sections of thermals treatment zone, and the heating-up temperature in each district is 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C.
Particularly, in described step (2), the melt extruded process of described second screw extruder is provided with 3 sections of thermals treatment zone, and the heating-up temperature in each district is 265 ~ 285 DEG C, 265 ~ 285 DEG C, 265 ~ 285 DEG C.
Particularly, in described step (3), the active line speed of described first hot-rolling GR1 is 2000 ~ 2400m/min, and the operating temperature of described first hot-rolling GR1 is 90 ~ 105 DEG C; The active line speed of described second hot-rolling GR2 is 4200 ~ 4500m/min, and the operating temperature of described second hot-rolling GR2 is 130 ~ 155 DEG C.
The performance parameter of final finished polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY): fiber number: 82, extends: 42.3%, intensity: 4.15, boiling water: 9.8.
It can thus be appreciated that this polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) has good fiber number and stronger strength character.
Embodiment 3
A kind of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) is the bi-component composite fiber be combined with each other by high convergency component and polyamide fibre component, and cross section is rip-panel shape, the percentage by weight of polyamide fibre component is 65%, and the percentage by weight of high convergency component is 35%.
The slicing characteristics viscosity of high convergency component is 0.7 ~ 1.0dl/g, and the slicing characteristics viscosity of polyamide fibre component is 0.4 ~ 0.6dl/g, and between high convergency component and polyamide fibre component, differences in viscosity is between 0.2 ~ 1.2.
A preparation method for polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), comprises the following steps:
(1), doing section 35kg with high convergency is the first raw material, enter the first material continuous drying tower, make the dry section of high convergency of moisture content < 50ppm, the melt extruded entering the first screw extruder becomes can spinning polyester fondant, the melt extruded process of the first screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and this polyester fondant is transported in spinning manifold, and be evenly distributed in composite component further and go, be the first component;
(2), doing section 65kg with polyamide fibre is the second raw material, enter the second material continuous drying tower, make the dry section of polyamide fibre of moisture content < 50ppm, then the second screw extruder is entered, becoming through the melt extruded of the second screw extruder can the polyamide fibre melt of spinning, and the melt extruded process of the second screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and is also transported in spinning manifold by this polyamide fibre melt, and be evenly distributed to further in composite component, be the second component;
(3), FDY spinning: use rip-panel type spinnerets in spinning process, adopt the first hot-rolling GR1 in winding process, the second hot-rolling GR2 carries out stretching and winding.
Particularly, in described step (1), the melt extruded process of described first screw extruder is provided with 5 sections of thermals treatment zone, and the heating-up temperature in each district is 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C.
Particularly, in described step (2), the melt extruded process of described second screw extruder is provided with 3 sections of thermals treatment zone, and the heating-up temperature in each district is 265 ~ 285 DEG C, 265 ~ 285 DEG C, 265 ~ 285 DEG C.
Particularly, in described step (3), the active line speed of described first hot-rolling GR1 is 2000 ~ 2400m/min, and the operating temperature of described first hot-rolling GR1 is 90 ~ 105 DEG C; The active line speed of described second hot-rolling GR2 is 4200 ~ 4500m/min, and the operating temperature of described second hot-rolling GR2 is 130 ~ 155 DEG C.
The performance parameter of final finished polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY): fiber number: 83, extends: 36.5%, intensity: 4.41, boiling water: 8.8.
It can thus be appreciated that this polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) has good fiber number and stronger strength character.
Embodiment 4
A kind of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) is the bi-component composite fiber be combined with each other by high convergency component and polyamide fibre component, and cross section is rip-panel shape, the percentage by weight of polyamide fibre component is 60%, and the percentage by weight of high convergency component is 40%.
The slicing characteristics viscosity of high convergency component is 0.7 ~ 1.0dl/g, and the slicing characteristics viscosity of polyamide fibre component is 0.4 ~ 0.6dl/g, and between high convergency component and polyamide fibre component, differences in viscosity is between 0.2 ~ 1.2.
A preparation method for polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), comprises the following steps:
(1), doing section 40kg with high convergency is the first raw material, enter the first material continuous drying tower, make the dry section of high convergency of moisture content < 50ppm, the melt extruded entering the first screw extruder becomes can spinning polyester fondant, the melt extruded process of the first screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and this polyester fondant is transported in spinning manifold, and be evenly distributed in composite component further and go, be the first component;
(2), doing section 60kg with polyamide fibre is the second raw material, enter the second material continuous drying tower, make the dry section of polyamide fibre of moisture content < 50ppm, then the second screw extruder is entered, becoming through the melt extruded of the second screw extruder can the polyamide fibre melt of spinning, and the melt extruded process of the second screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and is also transported in spinning manifold by this polyamide fibre melt, and be evenly distributed to further in composite component, be the second component;
(3), FDY spinning: use rip-panel type spinnerets in spinning process, adopt the first hot-rolling GR1 in winding process, the second hot-rolling GR2 carries out stretching and winding.
Particularly, in described step (1), the melt extruded process of described first screw extruder is provided with 5 sections of thermals treatment zone, and the heating-up temperature in each district is 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C.
Particularly, in described step (2), the melt extruded process of described second screw extruder is provided with 3 sections of thermals treatment zone, and the heating-up temperature in each district is 265 ~ 285 DEG C, 265 ~ 285 DEG C, 265 ~ 285 DEG C.
Particularly, in described step (3), the active line speed of described first hot-rolling GR1 is 2000 ~ 2400m/min, and the operating temperature of described first hot-rolling GR1 is 90 ~ 105 DEG C; The active line speed of described second hot-rolling GR2 is 4200 ~ 4500m/min, and the operating temperature of described second hot-rolling GR2 is 130 ~ 155 DEG C.
The performance parameter of final finished polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY): fiber number: 83, extends: 40.8%, intensity: 4.22, boiling water: 9.4.
It can thus be appreciated that this polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) has good fiber number and stronger strength character.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to right.
Claims (10)
1. a polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), it is characterized in that: described polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) is the bi-component composite fiber be combined with each other by high convergency component and polyamide fibre component, and cross section is rip-panel shape, described polyamide fibre component: the percentage by weight of high convergency component is 55% ~ 65%:35% ~ 45%.
2. polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) according to claim 1, it is characterized in that: the percentage by weight of polyamide fibre component is 60%, the percentage by weight of high convergency component is 40%.
3. polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) according to claim 1, it is characterized in that: the percentage by weight of polyamide fibre component is 62.5%, the percentage by weight of high convergency component is 37.5%.
4. polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) according to claim 1, it is characterized in that: the percentage by weight of polyamide fibre component is 55%, the percentage by weight of high convergency component is 45%.
5. polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) according to claim 1, it is characterized in that: the percentage by weight of polyamide fibre component is 65%, the percentage by weight of high convergency component is 35%.
6. polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) according to claim 1, it is characterized in that: the slicing characteristics viscosity of described high convergency component is 0.7 ~ 1.0dl/g, the slicing characteristics viscosity of described polyamide fibre component is 0.4 ~ 0.6dl/g, and between described high convergency component and polyamide fibre component differences in viscosity between 0.2 ~ 1.2.
7. a preparation method for polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY), is characterized in that: comprise the following steps:
(1) the high convergency section being, 35% ~ 45% percentage by weight with consumption is the first raw material, enter the first material continuous drying tower, make the dry section of high convergency of moisture content < 50ppm, the melt extruded entering the first screw extruder becomes can spinning polyester fondant, the melt extruded process of the first screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and this polyester fondant is transported in spinning manifold, and be evenly distributed in composite component further and go, be the first component;
(2) slices of caprone being, 55% ~ 65% percentage by weight with consumption is the second raw material, enter the second material continuous drying tower, make the dry section of polyamide fibre of moisture content < 50ppm, then the second screw extruder is entered, becoming through the melt extruded of the second screw extruder can the polyamide fibre melt of spinning, the melt extruded process of the second screw extruder is provided with 3 ~ 6 sections of thermals treatment zone, and this polyamide fibre melt is also transported in spinning manifold, and be evenly distributed to further in composite component, be the second component;
(3), FDY spinning: use rip-panel type spinnerets in spinning process, adopt the first hot-rolling GR1 in winding process, the second hot-rolling GR2 carries out stretching and winding.
8. the preparation method of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) according to claim 7, it is characterized in that: in described step (1), the melt extruded process of described first screw extruder is provided with 5 sections of thermals treatment zone, and the heating-up temperature in each district is 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C, 290 ~ 305 DEG C.
9. the preparation method of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) according to claim 7, it is characterized in that: in described step (2), the melt extruded process of described second screw extruder is provided with 3 sections of thermals treatment zone, and the heating-up temperature in each district is 265 ~ 285 DEG C, 265 ~ 285 DEG C, 265 ~ 285 DEG C.
10. the preparation method of polyamide fibre high convergency compound rip-panel type fullly drawn yarn (FDY) according to claim 7, it is characterized in that: in described step (3), the active line speed of described first hot-rolling GR1 is 2000 ~ 2400m/min, and the operating temperature of described first hot-rolling GR1 is 90 ~ 105 DEG C; The active line speed of described second hot-rolling GR2 is 4200 ~ 4500m/min, and the operating temperature of described second hot-rolling GR2 is 130 ~ 155 DEG C.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105970355A (en) * | 2016-05-25 | 2016-09-28 | 浙江理工大学 | Differential-shrinkage superfine composite fiber and processing process thereof |
| CN109750359A (en) * | 2019-01-10 | 2019-05-14 | 长乐恒申合纤科技有限公司 | The method of One-step production ultrafine-denier high-strength degree polyamide fibre -6FDY product |
| CN114892292A (en) * | 2022-06-14 | 2022-08-12 | 绍兴山海纺织有限公司 | Compound FDY filament |
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