CN104178839A - Polyamide fiber - Google Patents
Polyamide fiber Download PDFInfo
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- CN104178839A CN104178839A CN201310195667.7A CN201310195667A CN104178839A CN 104178839 A CN104178839 A CN 104178839A CN 201310195667 A CN201310195667 A CN 201310195667A CN 104178839 A CN104178839 A CN 104178839A
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Abstract
The invention discloses polyamide fiber. The polyamide fiber at least comprises a polyamide type polymer, and boron nitride inorganic particles having an average particle size of 0.1-1 [mu]m. The weight of the boron nitride inorganic particles is 0.5-5 wt% of the total weight of the polyamide fiber. The polyamide fiber has cold sense and maintains good strength and elongation.
Description
Technical field
The present invention relates to a kind of polyamide fiber, in this fiber, contain boron nitride inorganic particulate.
Background technology
Along with terrestrial climate warms gradually, there is functional fabric and be subject to gradually people's attention.Especially in hot moist summer, people wish that the clothing of the hydroscopic fast-drying of wearing some nice and cool property is to reach the requirement that reduces body temperature.In recent years,, as the fabric of using summer, people are studying can cause nice and cool sensation while dress, give the contact coldness shell fabric of refrigerant sense.In order to make such contact coldness fiber type, can utilize the method for the water imbibition of raising fiber or the conductivity of heat of raising fiber etc., or can utilize the polymer of having introduced the hydrophilic radical such as hydroxyl or carboxyl to make fiber, can also utilize the polymer of having sneaked into the filler that conductivity of heat is high to make fiber, or fiber surface is implemented to plating processing etc.But these above-mentioned technology, although really can obtain in theory contact coldness, when in fact carrying out people's sense experiment, do not have anything different with common fiber substantially, not having can the actual contact coldness of experiencing.
Chinese patent 200910196878.6 discloses a kind of nm-class boron nitride PP fiber and manufacture method, the feature of this technique is that boron nitride master batch and polypropylene PP are carried out to melt blending spinning, the content of boron nitride master batch is 1～10%, in boron nitride master batch, boron nitride content is 1～10%, be that in fiber, boron nitride content is 0.01～1%, the fiber obtaining has antibacterial functions, and the particle diameter of boron nitride is 20～80nm.But this patent to the process for dispersing of boron nitride inorganic particulate without any explanation.
Chinese patent 201110295850.5 discloses a kind of contact coldness dress material of excellence, this dress material is the knitted fabric of bilateral structure, 30～70% of total looped pile of dress material, by the fibroplastic looped pile of highly cool to touch, contains thermoplastic elastomer (TPE) and average grain diameter and is the inorganic filler of 0.2～3.0 micron.In inorganic filler, do not mention boron nitride.In addition, the fiber of the highly cool to touch in this patent, is not in order to give contact coldness, but to prevent that sticky feeling when moistening from, as object, adding inorganic filler, and the skin sense of touch while simultaneously improving with skin contact or the skin while undressing depart from sense.
Summary of the invention
The object of this invention is to provide and a kind ofly there is creeping chill and good strength and elongation is long-pending, the polyamide fiber of boiling water shrinkage.
It is the boron nitride inorganic particulate of 0.1～1.0 micron that creeping chill polyamide fiber of the present invention at least contains polyamide polymers and average grain diameter, and boron nitride inorganic particulate to account for total weight of fibers be 0.5～5wt%.
Polyamide polymers, as the main component of fiber, can be given the serviceability that fiber is good.There is no particular limitation for polyamide polymers of the present invention, and that can enumerate has nylon 6, nylon 66 or their modified copolymer etc.May be used alone, used in two or more.
The inorganic particulate containing in creeping chill polyamide fiber of the present invention is boron nitride inorganic particulate, and there is no particular limitation for its crystal form, can be cubic-crystal or hexagonal crystal shape etc., is preferably hexagonal crystal shape.The existence of inorganic particulate in fiber, the performance of giving fiber contact coldness.This is because inorganic particulate has good heat-conductive characteristic, makes human body produce contact coldness by quick conductive.Hexagonal boron nitride is one of material of heat conduction maximum in ceramic material, and thermal conductivity is ten times of quartz, on perpendicular to c direction of principal axis, has higher thermal conductivity 60W/ (mK); In addition, the interpolation of inorganic particulate, makes the surface of fiber also obtain modification and has formed small concavo-convexly, makes the tactility between fabric and skin that fiber makes have small change, has improved comfortableness.
The boron nitride inorganic particulate containing in creeping chill polyamide fiber of the present invention is preferably hexagonal crystal shape, hexagonal boron nitride is a kind of flexible material, Mohs' hardness is only 2, coefficient of friction is low to moderate 0.16, under high temperature, do not increase, can the abrasion of fine reduction to spinning equipment, can obtain good spinning workability, and obtain excellent creeping chill polyamide fiber and keep good comfortableness.
Creeping chill polyamide fiber of the present invention meets the following conditions:
A. strength and elongation long-pending >=20;
B. boiling water shrinkage≤15%.
Long-pending can the calculating by following formula of strength and elongation herein:
Amass=intensity (cN/dtex) × (elongation at break (%) of strength and elongation
0.5).
The words that fibre strength is high, can make fabric there is higher brute force, but generally can improve during fabrication the multiplying power of extension in order to obtain higher fibre strength, like this, although fibre strength has had raising, but the percentage elongation of fiber meeting step-down, easily produces filoplume in rear process, the correspondingly variation of trafficability characteristic of the engineerings such as weaving.Therefore,, in order to obtain excellent elongation at break and higher intensity, it is more than 20 that the strength and elongation of control fiber is amassed.
Creeping chill polyamide fiber of the present invention, can obtain by following method manufacture: by polyamide polymers with together with the master batch that contains boron nitride inorganic particulate, drop into feed bin, after blender mixes, feed the import of screw extruder, after spinning or further processing, obtain creeping chill polyamide fiber.
In the master batch that contains boron nitride inorganic particulate using in the present invention, the polyamide-based weight ratio of boron nitride and base polymer is 20～30:80～70.
The boron nitride inorganic particulate using in the present invention finally amount in fiber is 0.5～5wt%.
Creeping chill polyamide fiber of the present invention, can adopt any known melt spinning method to obtain.
Owing to containing inorganic particulate in creeping chill fiber, there is good heat conductivity.Use the fabric of this creeping chill fibre spinning to have better cold-type yellow (clear) with respect to common fabric.Use the fabric of this fiber weaving can effectively make skin temperature decline 4.5～6.0 degree with respect to common fabric, and can keep good strength and elongation.Meanwhile, the manufacture method of this fiber is suitable for existing disclosed various melt spinning methods, and not containing heavy metal, belongs to the green fiber that environment is safe from harm, and can effectively produce in a large number.
The method of testing of the parameter relating in the present invention is as follows:
(1) the constituent content assay method in fiber:
Tester: iCAP-6500 type (Thermo Scientific manufacture)
Method of testing: boron content is measured
Pre-treatment: alkali fusion after ashing, acid extraction method
Measure: US EPA6010C inductively coupled plasma spectroscopic methodology.
(2) the average mark shot footpath of inorganic particulate:
By scanning electron microscope sem or transmission electron microscope TEM, surface and the section to fiber or master batch observed, and obtains electronic image, then obtains the average mark shot footpath of inorganic particulate by the processing of winrof software.
(3) fabric face reduces the assay method of temperature:
Determining instrument: KES-7, infrared induction temperature video camera
Determination step: at 10cm × 10cm area, the heat that on the hot plate of certain mass, storage is set, heat is set as human body skin temperature 33 and spends, the test portion that is 20cm × 20cm by area is placed on the surface of hot plate, after test portion Surface Contact, use infrared induction temperature video camera to measure the variations in temperature on test portion surface.The shooting time of infrared induction temperature video camera is 5min, and shooting interval is 5sec, and final fabric face reduces the computing formula of temperature (MAX):
Fabric face reduces temperature=hot plate design temperature-fabric face minimum temperature.
(4) intensity of fiber, elongation at break and strength and elongation are long-pending
Sample is upper with JIS-L1013(1999 at cupping machine (ORIENTEC produces (Tensilon) UCT-100)) constant speed elongation condition in 8.5.1 standard test measures.Sample length is that 20cm, draw speed are that 20cm/ divides, and test number (TN) is 10 times.In addition, elongation at break is that the elongation of fiber is tried to achieve when maximum powerful in S-S curve.Strength and elongation is long-pending can try to achieve by formula below,
Amass=intensity (cN/dtex) × (elongation at break (%) of strength and elongation
0.5).
(5) boiling water shrinkage assay method
Use the boiling water shrinkage of JIS L 1013 standard test yarns.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
Nylon 6 slice is dried to below moisture 300ppm, the master batch feeding small feed bin that contains 20% Cubic boron nitride inorganic particulate, setting master batch addition is 2.5wt%, after blender mixes, enter screw extruder import, melting in screw extruder, by its discharge-amount of measuring pump control, by the filament spinning component by spinning manifold control temperature, spin as-spun fibre, cooling curing moulding under lateral blowing, then through fiber evenly being oiled and makes the collection of filaments and reduce friction to oil nozzle.The fiber that oil supply boundling is over through spinning shaft, enters first roller (1GR), then batches and make pre-oriented yarn POY through enter coiling machine after the second roller (2GR).
The pre-oriented yarn POY making processes on false twisting machine, and test obtains false twist yarn DTY filament number and reaches 0.5dtex, and elongation at break reaches 32.3%, and intensity reaches 4.36dtex/cN, and it is 24.78 that strength and elongation is amassed, and the receipts of boiling are 5.2%.It is 0.5 micron that the average mark shot footpath of the inorganic particulate containing in fiber in the present embodiment obtains by test, with the fabric of this fiber false twist yarn DTY100% use spinning, using infrared induction temperature video camera shooting test to obtain fabric face reduction temperature is 4.5 degree.The results are shown in Table 1.
Embodiment 2
Nylon 6 slice is dried to below moisture 300ppm, the master batch feeding small feed bin that contains 20% 6 square boron nitride inorganic particulate, setting master batch addition is 25wt%, after blender mixes, enter screw extruder import, melting in screw extruder, by its discharge-amount of measuring pump control, by the filament spinning component by spinning manifold control temperature, spin as-spun fibre, cooling curing moulding under lateral blowing, then through fiber evenly being oiled and makes the collection of filaments and reduce friction to oil nozzle.The fiber that oil supply boundling is over through spinning shaft, enters first roller (1GR), then batches and make pre-oriented yarn POY through enter coiling machine after the second roller (2GR).
The pre-oriented yarn POY making processes on false twisting machine, and the filament number that test obtains false twist yarn DTY reaches 1.0dtex, and elongation at break reaches 34.5%, and intensity reaches 3.62dtex/cN, and it is 21.26 that strength and elongation is amassed, and the receipts of boiling are 6.3%.It is 0.3 micron that the average mark shot footpath of the inorganic particulate containing in fiber in the present embodiment obtains by test, and the fabric spinning with this fiber false twist yarn DTY100% use, using infrared induction temperature video camera shooting test to obtain fabric face reduction temperature is 6.0 degree.The results are shown in Table 1.
Embodiment 3
Nylon 6 slice is dried to below moisture 300ppm, the master batch feeding small feed bin that contains 20% 6 square boron nitride inorganic particulate, setting master batch addition is 2.5wt%, after blender mixes, enter screw extruder import, melting in screw extruder, by its discharge-amount of measuring pump control, by the filament spinning component by spinning manifold control temperature, spin as-spun fibre, cooling curing moulding under lateral blowing condition, then through fiber evenly being oiled and makes the collection of filaments and reduce friction to oil nozzle.The fiber that oil supply boundling is over is through spinning shaft, through pre-winding apparatus interlacing, enter the first hot-rolling 1HR, and on the first hot-rolling, be wound around after 6 ~ 7 circles, through the second hot-rolling 2HR, be also wound around 6 ~ 7 circles in the above again, the fiber after the stretching between the first hot-rolling and the second hot-rolling carries out interlacing by main winding apparatus to it under the second hot-rolling, by the 3rd roller (3GR) the 4th roller (4GR), fiber is introduced to coiling machine and coil into finished product spinning cake (DSD) again.
The filament number that test obtains DSD reaches 1.0dtex, and elongation at break reaches 32.5%, and intensity reaches 3.91dtex/cN, and it is 22.29 that strength and elongation is amassed, and the receipts of boiling are 5.5%.It is 0.3 micron that the average mark shot footpath of the inorganic particulate containing in fiber in the present embodiment obtains by test, and the fabric spinning with this fiber DSD100% use, and using infrared induction temperature video camera shooting test to obtain fabric face reduction temperature is 4.5 degree.The results are shown in Table 1.
Embodiment 4
Nylon 6 slice is dried to below moisture 300ppm, the master batch feeding small feed bin that contains 20% 6 square boron nitride inorganic particulate, setting master batch addition is 25wt%, after blender mixes, enter screw extruder import, melting in screw extruder, by its discharge-amount of measuring pump control, by the filament spinning component by spinning manifold control temperature, spin as-spun fibre, cooling curing moulding under lateral blowing condition, then through fiber evenly being oiled and makes the collection of filaments and reduce friction to oil nozzle.The fiber that oil supply boundling is over is through spinning shaft, through pre-winding apparatus interlacing, enter the first hot-rolling 1HR, and on the first hot-rolling, be wound around after 6 ~ 7 circles, through the second hot-rolling 2HR, be also wound around 6 ~ 7 circles in the above again, the fiber after the stretching between the first hot-rolling and the second hot-rolling carries out interlacing by main winding apparatus to it under the second hot-rolling, by the 3rd roller (3GR) the 4th roller (4GR), fiber is introduced to coiling machine and coil into finished product spinning cake (DSD) again.
The filament number that test obtains DSD reaches 1.0dtex, and elongation at break reaches 31.2%, and intensity reaches 3.97dtex/cN, and it is 22.18 that strength and elongation is amassed, and the receipts of boiling are 6.1%.It is 0.3 micron that the average mark shot footpath of the inorganic particulate containing in fiber in the present embodiment obtains by test, and the fabric spinning with this fiber DSD100% use, and using infrared induction temperature video camera shooting test to obtain fabric face reduction temperature is 6.0 degree.The results are shown in Table 1.
Comparative example 1
Nylon 6 slice is dried to below moisture 300ppm, the master batch feeding small feed bin that contains 20% 6 square boron nitride inorganic particulate, setting master batch addition is 40wt%, after blender mixes, enters screw extruder import, carries out spinning process with embodiment 1, obtain false twist yarn DTY filament number and reach 0.5dtex, degree of stretching reaches 28.6%, and intensity reaches 2.93dtex/cN, it is 15.67 that strength and elongation is amassed, and the receipts of boiling are 7.1%.With the fabric of this fiber false twist yarn DTY100% use spinning, using infrared induction temperature video camera shooting test to obtain fabric face reduction temperature is 6.4 degree.Although this fabric has obvious creeping chill effect, monofilament strength and elongation occurs obviously to decline.The results are shown in Table 1.
Comparative example 2
Nylon 6 slice is dried to below moisture 300ppm, the master batch feeding small feed bin that contains 20% 6 square boron nitride inorganic particulate, setting master batch addition is 2.0wt%, after blender mixes, enters screw extruder import, carries out spinning process with embodiment 1, obtain false twist yarn DTY filament number and reach 1.0dtex, degree of stretching reaches 31.7%, and intensity reaches 4.43dtex/cN, it is 24.94 that strength and elongation is amassed, and the receipts of boiling are 6.4%.With the fabric of this fiber false twist yarn DTY100% use spinning, using infrared induction temperature video camera shooting test to obtain fabric face reduction temperature is 3.0 degree.Although this fabric keeps good strength and elongation, there is no excellent creeping chill effect.The results are shown in Table 1.
Comparative example 3:
Nylon 6 slice is dried to below moisture 300ppm, the master batch feeding small feed bin that contains 20% titanium oxide inorganic particulate, setting master batch addition is 30wt%, after blender mixes, enters screw extruder import, carries out spinning process with embodiment 1, obtain false twist yarn DTY filament number and reach 1.0dtex, degree of stretching reaches 31.7%, and intensity reaches 3.64dtex/cN, it is 20.49 that strength and elongation is amassed, and the receipts of boiling are 5.4%.With the fabric of this fiber 100% use spinning, using infrared induction temperature video camera shooting test to obtain fabric face reduction temperature is 2.4 degree.This fabric does not have obvious creeping chill effect.The results are shown in Table 1.
Claims (3)
1. a polyamide fiber, is characterized in that: in this fiber, at least contain polyamide polymers and average grain diameter and be the boron nitride inorganic particulate of 0.1～1.0 micron, it is 0.5～5wt% that described boron nitride inorganic particulate accounts for total weight of fibers.
2. polyamide fiber according to claim 1, is characterized in that: the crystallization shape of described boron nitride inorganic particulate is hexagonal crystal shape.
3. polyamide fiber according to claim 1 and 2, is characterized in that: described fiber meets the following conditions:
A. strength and elongation long-pending >=20;
B. boiling water shrinkage≤15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310195667.7A CN104178839A (en) | 2013-05-23 | 2013-05-23 | Polyamide fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310195667.7A CN104178839A (en) | 2013-05-23 | 2013-05-23 | Polyamide fiber |
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| CN104178839A true CN104178839A (en) | 2014-12-03 |
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| CN201310195667.7A Pending CN104178839A (en) | 2013-05-23 | 2013-05-23 | Polyamide fiber |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016108078A1 (en) | 2015-09-14 | 2016-07-07 | Rhodia Poliamida E Especialidades Ltda | Polyamide fiber with improved comfort management, process thereof and article made therefrom |
| CN106480531A (en) * | 2015-08-25 | 2017-03-08 | 东丽纤维研究所（中国）有限公司 | A kind of nylon fiber |
| CN110205706A (en) * | 2019-07-05 | 2019-09-06 | 常州兴烯石墨烯科技有限公司 | A kind of modified white graphite alkene polyamide fibre composite fibre and preparation method thereof |
| CN111172608A (en) * | 2020-02-17 | 2020-05-19 | 西安工程大学 | Heat-conducting cool-feeling, moisture-absorbing and sweat-releasing polyamide fiber material and preparation method thereof |
| CN113430668A (en) * | 2021-06-28 | 2021-09-24 | 安踏（中国）有限公司 | Ice-feeling quick-drying fiber and preparation method thereof, and ice-feeling quick-drying fabric and preparation method thereof |
-
2013
- 2013-05-23 CN CN201310195667.7A patent/CN104178839A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480531A (en) * | 2015-08-25 | 2017-03-08 | 东丽纤维研究所（中国）有限公司 | A kind of nylon fiber |
| CN106480531B (en) * | 2015-08-25 | 2020-05-15 | 东丽纤维研究所（中国）有限公司 | Nylon fiber |
| WO2016108078A1 (en) | 2015-09-14 | 2016-07-07 | Rhodia Poliamida E Especialidades Ltda | Polyamide fiber with improved comfort management, process thereof and article made therefrom |
| CN110205706A (en) * | 2019-07-05 | 2019-09-06 | 常州兴烯石墨烯科技有限公司 | A kind of modified white graphite alkene polyamide fibre composite fibre and preparation method thereof |
| CN111172608A (en) * | 2020-02-17 | 2020-05-19 | 西安工程大学 | Heat-conducting cool-feeling, moisture-absorbing and sweat-releasing polyamide fiber material and preparation method thereof |
| CN111172608B (en) * | 2020-02-17 | 2022-02-25 | 西安工程大学 | Heat-conducting cool-feeling, moisture-absorbing and sweat-releasing polyamide fiber material and preparation method thereof |
| CN113430668A (en) * | 2021-06-28 | 2021-09-24 | 安踏（中国）有限公司 | Ice-feeling quick-drying fiber and preparation method thereof, and ice-feeling quick-drying fabric and preparation method thereof |
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