CN107587206A - A kind of energy storage heat generating thermal fiber and preparation method thereof - Google Patents
A kind of energy storage heat generating thermal fiber and preparation method thereof Download PDFInfo
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Abstract
The invention provides a kind of energy storage heat generating thermal fiber and preparation method thereof, the doughnut made of the particle modified macromolecule fibre-forming polymer of inorganic heating, wherein, mass percent shared by macromolecule fibre-forming material is 60%~99.9%, and mass percent shared by inorganic heating particle is 0.1%~40%.Fiber prepared by the present invention while have and absorb luminous energy heating, absorb thermal radiation of body heating, absorb infra-red radiation heating, heat insulation function, it can not only absorb luminous energy heating, the effect that the heat radiation that human body gives out reaches heating can also be absorbed, the air of the hollow storage of fibrous inside plays the effect of insulation simultaneously, improves the comfortableness that human body wears such dress ornament；With the infrared lamp bergmann's fiber sample that the wave-length coverage sent similar to human body surface is 4~14 μm, as a result the spontaneous thermal fiber shown from research and development has preferable temperature-responsive, and the microcirculation with promotion organization blood, reach warming, health care, improve the work(fruit of body immunity.
Description
Technical field
The present invention relates to a kind of fiber, and in particular to a kind of heat generating and retention fiber and preparation method thereof.
Background technology
In the last few years, the heat generating fiber developed both at home and abroad mainly based on far IR fibre, is sent out by absorbing human body
The heat of injection, to the far infrared of the wavelength range of human body radiation one, body local can be made to produce thermogenetic effect.But by
In thermal Finite caused by human body, the heat-insulating property of such fabric is also limited, is improved compared with business suit less than 1
℃.Therefore, luminous energy heat generating fiber material turns into the focus of research.
Infrared spectrum is generally divided into by three regions according to optical wavelength：Near infrared region (0.75~2.5 μm), middle infrared
(2.5~25 μm) and far-infrared band (25~300 μm).Infrared ray absorbing mechanism is Spectral matching RESONANCE ABSORPTION, that is, works as radiation source
Radiation wavelength it is consistent with the absorbing wavelength of radiant matter when, the object just absorbs substantial amounts of infra-red radiation.Human body is a kind of natural
Infrared emitting source, regardless of the colour of skin, the emissivity of skin of living body is 98%, and the heat radiation wavelength of human body surface is 2.5
~15 μ ms, peak wavelength is about at 9.37 μm, wherein the radiation of 8~14 mu m wavebands is about human body total radiation energy
46%, while human body is good infrared absorber again, absorbing wavelength is based on 8~14 μm, human-body emitting and the heat absorbed
Infrared band scope in radiation mainly.And the sun is that energy is most strong, the natural radiation source of natural stabilisation, observe on the ground
The wavelength band of solar radiation is about 0.295~2.5 μm, belongs to visible ray and near infrared band scope more.Luminous energy heating is fine
Dimension is the fiber of visible ray and near infrared ray in a kind of absorbable solar radiation, and can reflect thermal radiation of body, mainly with addition
Based on IV group 4 transition metal carbide, such as ZrC, TiC, HfC.Day Bender mountain all goes out carbon containing with You Nijika companies joint research and developments
Change zirconium (ZrC), heat accumulation thermal fiber " the solar- α " of absorbable solar energy.It is a kind of core-skin composite fiber, and sandwich layer is carbon containing
Change the polyamide or polyester of zirconium, cortex is common fiber-forming polymer, is formed by double screw extruder melt spinning.This fiber adds
Work is into after clothes, and temperature can be high compared with business suit 2~8 DEG C in clothes under sunlight；But its cortex is conventional polyester, is unfavorable for
Absorption to heat radiation.Asahi Kasei Corporation uses double-decker, and outer layer uses sunlight heat-storing material to improve body-sensing temperature rise effect,
Internal layer can reflect thermal radiation of body, thermal loss caused by reduce human-body radiating using mixing far-infrared ceramic material.
There is the heat generating fiber using tourmaline powder and (or) bamboo-carbon powder the country.Tourmaline has higher far infrared
Emissivity, but it is poor for the absorption heating effect of sunlight and human body radiation.Bamboo-carbon powder generally has preferable suction-operated,
Such as Chinese patent " a kind of warming heat generating fiber and its processing method and application " (CN104389043A), disclose a kind of using electricity
Gas stone flour body and bamboo-carbon powder, produce the warming heat generating fiber of tubular filament.Chinese patent " a kind of extinction heating function fiber and
Its spinning processing technology and fabric " (CN104213242A), there is provided a kind of extinction heating function fiber and its spinning processing
Technique and fabric, it can solve the problems, such as that existing thermal isolation and heat storage functional fiber or fabric heat absorption efficiency are poor, and it is weaved
Afterwards also without being dyed again, so as to reach the purpose of energy-saving and emission-reduction.Its function essentially consists in extinction and generated heat, but for
The effect of absorption, heating and the insulation of thermal radiation of body then has no.
It follows that existing heat generating fiber material causes heating property to differ because the functional powder of use is different
Cause, or can only extinction heating, do not possess the effect that is incubated after heating, with less solar radiation, Studies of Human Body Heat can be absorbed simultaneously
Radiation and the function of infrared emanation, and then cause heating property difference is larger in different environments or can not make full use of
The heat radiation of human body itself, reduce comfortableness of the human body when wearing such heating dress ornament.
The content of the invention
Goal of the invention：In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of energy storage heat generating thermal fiber
And preparation method thereof, the fiber is rapidly heated after can absorbing solar radiation, thermal radiation of body and infrared emanation, and with compared with
Good heat-preserving function, improve comfortableness of the human body when wearing such heating dress ornament.
Technical scheme：A kind of energy storage heat generating thermal fiber, by the particle modified macromolecule fibre-forming polymer system of inorganic heating
Into doughnut, wherein, mass percent shared by macromolecule fibre-forming material be 60%~99.9%, it is inorganic heating particle shared by
Mass percent is 0.1%~40%.
Further, the section of the doughnut is single hole circle, single hole triangle, four holes are circular or seven apertures in the human head is circular, should
Class doughnut has higher hollow rate, and the air that inside is possessed is more, so as to which thermal property is preferable.
Further, the macromolecule fibre-forming polymer is that any proportioning of one or more in polyester, polyamide, PLA is mixed
Close, including PET, PBT, PTT, PA6 and PA66.
Further, the inorganic heating particle is Zirconium carbide powder, or is Zirconium carbide powder and far-infared ceramic powder, carbon
The arbitrarily proportioning mixing of one or both of SiClx powder.
Preferably, the particle size range of the inorganic heating particle is 1000~15000 mesh, and the powder of the particle diameter is dispersed in into
It is not likely to produce in fine high polymer and agglomerates into aggregated particle and damaged to spinning production, while the particles of phase homogenous quantities has
Quantity is more, can give full play to the function of powder.It can prove, the heating powder granule selected of the present invention disperseing in the fibre
Preferably, small to fibre machinery performance impact, available for doughnut is spinned, the fiber of preparation has preferable mechanical performance, can
To be used in the field of taking.
The preparation method of above-mentioned energy storage heat generating thermal fiber, comprises the following steps：
(1) inorganic heating particle and macromolecule fibre-forming material be mixed and stirred for uniformly, extruding pelletization, obtaining inorganic
The macromolecule fibre-forming polymer section for generating heat particle modified or master batch；
(2) with the particle modified macromolecule fibre-forming polymer section of inorganic heating or master batch and conventional macromolecule fibre-forming material
Blended slice is that raw material carries out melt spinning, and the precursor that spinning is obtained carries out boundling, drawing-off, sizing, cut-out, packing, that is, makes
It is standby to obtain energy storage heat generating thermal fiber.
Further, spinning is carried out using single hole circle, single hole triangle, the spinneret that four holes are circular or seven apertures in the human head is circular.
Beneficial effect：Fiber prepared by the present invention while have absorb luminous energy heating, absorb thermal radiation of body heating,
Infra-red radiation heating, heat insulation function are absorbed, luminous energy heating can be not only absorbed, the hot spoke that human body gives out can also be absorbed
The effect for reaching heating is penetrated, while the air of the hollow storage of fibrous inside plays the effect of insulation, improves human body and wears this
The comfortableness of class dress ornament；With the infrared lamp bergmann's fiber sample that the wave-length coverage sent similar to human body surface is 4~14 μm, knot
Fruit shows that the spontaneous thermal fiber from research and development has preferable temperature-responsive, and the microcirculation with promotion organization blood, reaches guarantor
Warm, health care, the work(fruit for improving body immunity.
Because the heating effect for testing fiber does not have ready-made standard, according to the principle of heat generating fiber effect and with reference to remote red
Outer ceramic fibre testing standard, designed, designed of the present invention use sunlight and infrared lamp bergmann's fiber sample, monitor fiber-like in real time
The method of the temperature of product monitors the energy storage heat generating effect of fiber.Method of testing is as follows, the distance of fixed test sample fiber, with
Different radiating light source, thermal source irradiation chopped fiber sample, within certain time (10min), detect the temperature change of fiber；Then
Remove the light source, thermal source, the temperature change of detection a period of time (5min) interior fiber.
The equipment of involved monitoring temperature includes green gram of contact thermocouple, good fortune thermal infrared imaging instrument.In testing experiment
Radiating light source, the thermal source used have respectively sunshine, indoor 150W, 125W infrared lamp, wavelength for 4~15um middle infrared lamp
(simulation human body radiation).
The warming heat generating fiber of accumulation of energy prepared by the present invention is compared with pure polyester fiber, under northern morning in the early spring weak sunlight,
Test environment temperature is 4 DEG C or so, and the temperature that the present invention can reach is higher than 10 DEG C or so of control sample；Irradiated when removing light source
After 5min, fiber sample of the present invention is still higher than control sample fiber 2~3 DEG C.Under stronger sunlight, test environment temperature is
13.0 DEG C or so, the temperature that the present invention can reach is higher than 10-25 DEG C or so of control sample.
Under indoor far-infrared lamp test condition, the warming heat generating fiber of accumulation of energy prepared by the present invention is compared with pure polyester fiber,
When being 1 minute between upon irradiation, the present invention shows preferable heating effect, 40 DEG C higher than blank fiber or so.Work as irradiation
When time is 5 minutes, 50 DEG C high compared with blank fiber or so.When removing infrared lamp source irradiation, fiber and sky prepared by the present invention
The temperature of white fiber drastically reduces, still 5 DEG C higher than blank polyester fiber or so, has excellent energy storage heat generating thermal property.
Under the middle infrared lamp test condition of 4~15um wavelength, infrared optical response of the fiber of the invention prepared to the wavelength
It is more obvious, high 4 DEG C or so of the temperature reached than commercially available Far-infrared hollow fiber within the same time.
Brief description of the drawings
Fig. 1 is of the invention and pure polyester fiber heat generating and retention Contrast on effect.
Embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
Embodiment：
Embodiment 1：A kind of preparation method of energy storage heat generating thermal fiber：
(1) preparation of the inorganic particle modified macromolecule fibre-forming polymer of heating
99.9 parts of PET are well mixed and dried with the Zirconium carbide powder of 0.1 part of 1000 mesh, under conditions of 250 DEG C, warp
Twin-screw blending is granulated, and the particle modified macromolecule fibre-forming material section of inorganic heating is prepared.
(2) preparation of energy storage heat generating thermal fiber：
The short fine production equipment of conventional polyester and doughnut special spinning jet is used to produce section as the hollow of single hole circle
Fiber, the particle modified macromolecule fibre-forming material of the inorganic heating prepared is cut into slices 100 parts be dried, melt spinning, boundling,
Drawing-off, sizing, cut-out, packing, spinning temperature are 290 DEG C, that is, energy storage heat generating thermal fiber is prepared.
Performance test is carried out to obtained energy storage heat generating thermal fiber, itself and pure polyester staple fiber are contrasted：
Test condition：Under sunshine, detection device is contact thermocouple；
Time：Northern morning in the early spring 7:30；
Weather condition：Cloudy gentle breeze；Environment temperature：4.0℃；
Test specification：This testing time is 15 minutes (10 minutes shady places of illumination cool down 5 minutes), and all steps are complete
Completed under outdoor situations, without any circumstance of occlusion.The heating effect correction data of the present embodiment fiber and pure polyester fiber is shown in
Following table：
It is of the invention under 1 weak sunshine of table to be contrasted with pure polyester fiber heating effect
As can be known from the above table, under northern morning in the early spring weak sunlight, the temperature that the present invention can reach is higher than 10 DEG C of control sample
Left and right；After light source irradiation 5min is removed, fiber sample of the present invention is still higher than control sample fiber 2~3 DEG C.
Obtained energy storage heat generating thermal fiber and pure polyester staple fiber (control sample 1) are under equal conditions spun
Yarn, weave cotton cloth, itself and the cloth specimen (control sample 2) on commercially available Japan " warm love " heat generating and retention underwear are tested into cloth specimen under similarity condition
Surface temperature is as a result as follows：
Test condition：Sunlight, light application time 10 minutes and stops illumination 5 minutes, using the detection of infrared thermally sensitive temperature instrument simultaneously
The change of sample temperature is recorded, contrast test result see the table below：
Under the sunshine of table 2, the present invention contrasts with control sample heating effect
As can be known from the above table, in the sun, the temperature that cloth specimen made of the present invention can reach is higher than about 2.5 DEG C of control sample 2
Left and right, higher than about 7 DEG C or so of control sample 1；After light source irradiation 5min is removed, fiber sample of the present invention is still than control sample 1 high 2
℃。
Embodiment 2：A kind of preparation method of energy storage heat generating thermal fiber：
(1) preparation of the inorganic particle modified macromolecule fibre-forming polymer of heating
99.8 parts of PBT are mixed with the Zirconium carbide powder of 0.1 part of 1000 mesh and 0.1 part of 2000 mesh far-infrared ceramic powder
It is even and dry, under conditions of 235 DEG C, it is blended and is granulated through twin-screw, the inorganic particle modified macromolecule of heating is prepared into fibre
Polymer chips.
(2) preparation of energy storage heat generating thermal fiber：
The particle modified macromolecule fibre-forming polymer of the inorganic heating prepared is cut into slices 100 parts be dried, melt spinning,
Boundling, drawing-off, sizing, cut-out, packing, spinning temperature are 260 DEG C, that is, energy storage heat generating thermal fiber is prepared.
Performance test is carried out to obtained energy storage heat generating thermal fiber, itself and pure polyester staple fiber are contrasted：
Test condition is using 150W infrared light supplies, by the warming heat generating fiber of accumulation of energy manufactured in the present embodiment and pure polyester fibre
Dimension is contrasted, and detects reception distance 45cm of fiber sample or so, using light application time 10 minutes and stops illumination 5 minutes,
Utilize the change inside contact thermocouple detection heat generating fiber with polyester fiber internal temperature.The present embodiment fiber and pure polyester
The heating effect correction data of fiber is shown in Fig. 1 and following table：
It is of the invention under the irradiation of the 150W infrared light supplies of table 3 to be contrasted with pure polyester fiber heating effect
From test result as can be seen that fiber prepared by the present invention has higher temperature compared with pure polyester fiber, work as irradiation
When time is 1 minute, the present invention shows preferable heating effect, 4 DEG C higher than control sample or so.It is 5 points between upon irradiation
Zhong Shi, 10 DEG C high compared with control sample or so.When removing infrared lamp source irradiation, fiber and the temperature of control sample prepared by the present invention is anxious
Fall sharply low, still 4 DEG C higher than control sample or so, there is excellent energy storage heat generating thermal property.
Embodiment 3：A kind of preparation method of energy storage heat generating thermal fiber：
(1) preparation of the inorganic particle modified macromolecule fibre-forming polymer of heating
80 parts of PA66 are well mixed and done with the Zirconium carbide powder of 5 part of 3000 mesh silicon carbide powder and 15 part of 1000 mesh
It is dry, under conditions of 240 DEG C, it is blended and is granulated through twin-screw, it is female that the inorganic particle modified macromolecule fibre-forming material of heating is prepared
Grain.
(2) preparation of energy storage heat generating thermal fiber：
By the particle modified macromolecule fibre-forming material of the inorganic heating prepared cut into slices 10 parts with 90 parts of conventional macromolecules into fibre
Material carries out combination drying, melt spinning, boundling, drawing-off, sizing, cut-out, packing, and spinning temperature is 290 DEG C, that is, is prepared
Energy storage heat generating thermal fiber.
Because human body is in active procedure, the far infrared heat of 4~15um wavelength is constantly outwardly radiated, in order to more accurate
True simulation human body is worn the clothes environment, and present invention uses the middle infrared lamp of 4~15um wavelength to be detected to sample.
In addition, in order that influence of the external environment to testing fiber is minimum, employed in test that test sample is hanging
Method.And it is 27cm strictly to control the distance of infrared lamp and sample, is tested under conditions of without any other light, it is ensured that each
The test condition strict conformance of sample.
The sample of test, wherein No. 1 sample is this hair for far-infared ceramic powder hollow core staple fibers on the market, No. 2 samples
The energy storage heat generating warming short fiber of bright preparation, test result see the table below：
Table 4 heats up and warming effect contrast
In the electromagnetic wave that far-infrared textiles are given off, the far infrared and human body in 4~14 μ m wavelength ranges are thin
The vibration frequency of hydrone is identical in born of the same parents, when human body surface is radiated by this far infrared, human body surface can be caused thin
The resonance of the molecule of born of the same parents, fuel factor, and human activin superficial cell are produced, promotes the microcirculation of subcutis blood, reaches
To warming, health care, enhance metabolism, improve the effect of body immunity.
From test result as can be seen that far red light response of the fiber of the invention prepared to the wavelength is more obvious, than 1
High 4 DEG C or so of the temperature that number commercially available Far-infrared hollow fiber reaches within the same time.
Embodiment 4：A kind of preparation method of energy storage heat generating thermal fiber：
(1) preparation of the inorganic particle modified macromolecule fibre-forming material of heating
By 60 parts PET and 10 part 5000 mesh far-infrared ceramic powders and the Zirconium carbide powder of 20 part of 15000 mesh and 10 parts
The silicon carbide powder of 5000 mesh is well mixed and dried, and under conditions of 285 DEG C, is blended and is granulated through twin-screw, nothing is prepared
The particle modified macromolecule fibre-forming polymer master batch of machine heating.
(2) preparation of energy storage heat generating thermal fiber：
By 10 parts of the particle modified macromolecule fibre-forming polymer master batch of the inorganic heating prepared and 90 parts of conventional macromolecules into
Fiber material carries out combination drying, melt spinning, boundling, drawing-off, sizing, cut-out, packing, and spinning temperature is 290 DEG C, that is, is prepared into
To energy storage heat generating thermal fiber.
Performance test is carried out to obtained energy storage heat generating thermal fiber, it is indoor remote red with the progress of pure polyester staple fiber
Outer lamp test：
Test condition：150W infrared light supplies, receive distance 45cm or so, light application time 10 minutes and stop illumination 5 minutes,
Light source irradiates fiber surface, is detected using infrared thermally sensitive temperature instrument and records the change of sample surface temperature.
Table 5 is of the invention with pure polyester fiber heat generating and retention Contrast on effect
From test result as can be seen that fiber prepared by the present invention has higher temperature compared with pure polyester fiber, work as irradiation
When time is 1 minute, the present invention shows preferable heating effect, 47 DEG C higher than blank fiber or so.It is 5 between upon irradiation
During minute, 50 DEG C high compared with blank fiber or so.When removing infrared lamp source irradiation, the fiber prepared and blank fiber of the invention
Temperature drastically reduces, still 5 DEG C higher than blank polyester fiber or so, has excellent energy storage heat generating thermal property.
Claims (7)
- A kind of 1. energy storage heat generating thermal fiber, it is characterised in that：By the particle modified macromolecule fibre-forming polymer system of inorganic heating Into doughnut, wherein, mass percent shared by macromolecule fibre-forming material be 60%~99.9%, it is inorganic heating particle shared by matter It is 0.1%~40% to measure percentage.
- 2. energy storage heat generating thermal fiber according to claim 1, it is characterised in that：The section of the doughnut is single hole Circle, single hole triangle, four holes are circular or seven apertures in the human head is circular.
- 3. energy storage heat generating thermal fiber according to claim 1, it is characterised in that：The macromolecule fibre-forming polymer is poly- Any proportioning mixing of one or more in ester, polyamide, PLA, including PET, PBT, PTT, PA6 and PA66.
- 4. energy storage heat generating thermal fiber according to claim 1, it is characterised in that：The inorganic heating particle is zirconium carbide Powder, or mixed for Zirconium carbide powder with one or both of far-infared ceramic powder, silicon carbide powder arbitrarily proportioning.
- 5. energy storage heat generating thermal fiber according to claim 4, it is characterised in that：The particle diameter model of the inorganic heating particle Enclose for 1000~15000 mesh.
- 6. the preparation method of energy storage heat generating thermal fiber as claimed in claim 1, it is characterised in that：Comprise the following steps：（1）Inorganic heating particle and macromolecule fibre-forming material be mixed and stirred for uniformly, extruding pelletization, to obtain inorganic heating Particle modified macromolecule fibre-forming polymer section or master batch；（2）With the particle modified macromolecule fibre-forming polymer section of inorganic heating or master batch and the blending of conventional macromolecule fibre-forming material Cut into slices and carry out melt spinning for raw material, the precursor that spinning is obtained carries out boundling, drawing-off, sizing, cut-out, packing, that is, is prepared into To energy storage heat generating thermal fiber.
- 7. the preparation method of energy storage heat generating thermal fiber according to claim 1, it is characterised in that：Justified using single hole Shape, single hole triangle, the spinneret that four holes are circular or seven apertures in the human head is circular carry out spinning.
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| CN108691081A (en) * | 2018-05-17 | 2018-10-23 | 无锡恒诺纺织科技有限公司 | Extinction heat preservation is knitted fabric |
| CN109629035A (en) * | 2018-12-25 | 2019-04-16 | 南通东屹高新纤维科技有限公司 | A kind of manufacture craft of 56 fiber of biology base nylon with far-infrared functional |
| CN110791827A (en) * | 2019-09-30 | 2020-02-14 | 中润科技股份有限公司 | Far infrared efficient heat storage polyester fiber and preparation process thereof |
| CN111549439A (en) * | 2020-05-15 | 2020-08-18 | 嘉兴市菲尔欣制衣股份有限公司 | Production process of self-heating thermal woolen sweater |
| CN111593433A (en) * | 2020-05-25 | 2020-08-28 | 中国科学技术大学先进技术研究院 | Energy-storage heating fiber and preparation method thereof |
| CN111647969A (en) * | 2020-06-10 | 2020-09-11 | 北京环境特性研究所 | Composite fiber |
| CN112647145A (en) * | 2020-12-16 | 2021-04-13 | 上海德福伦化纤有限公司 | Hollow heat-storage heat-preservation polylactic acid fiber and preparation method thereof |
| CN113373528A (en) * | 2021-06-09 | 2021-09-10 | 温州市名达服饰有限公司 | Warm-keeping western-style trousers and warm-keeping layer thereof |
| CN114103365A (en) * | 2021-12-13 | 2022-03-01 | 厦门安踏体育用品有限公司 | Lightweight warming functional flocculus and preparation method thereof |
| CN114703578A (en) * | 2022-02-17 | 2022-07-05 | 长乐力恒锦纶科技有限公司 | Production process of full-dull nylon 6 thermal inductance fiber fully drawn yarn |
| CN114763629A (en) * | 2021-05-24 | 2022-07-19 | 上海九裕纺织科技有限公司 | Fabric with heating function and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108691081A (en) * | 2018-05-17 | 2018-10-23 | 无锡恒诺纺织科技有限公司 | Extinction heat preservation is knitted fabric |
| CN109629035A (en) * | 2018-12-25 | 2019-04-16 | 南通东屹高新纤维科技有限公司 | A kind of manufacture craft of 56 fiber of biology base nylon with far-infrared functional |
| CN110791827A (en) * | 2019-09-30 | 2020-02-14 | 中润科技股份有限公司 | Far infrared efficient heat storage polyester fiber and preparation process thereof |
| CN111549439A (en) * | 2020-05-15 | 2020-08-18 | 嘉兴市菲尔欣制衣股份有限公司 | Production process of self-heating thermal woolen sweater |
| CN111593433A (en) * | 2020-05-25 | 2020-08-28 | 中国科学技术大学先进技术研究院 | Energy-storage heating fiber and preparation method thereof |
| CN111647969A (en) * | 2020-06-10 | 2020-09-11 | 北京环境特性研究所 | Composite fiber |
| CN111647969B (en) * | 2020-06-10 | 2022-08-05 | 北京环境特性研究所 | Composite fiber |
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| CN114763629A (en) * | 2021-05-24 | 2022-07-19 | 上海九裕纺织科技有限公司 | Fabric with heating function and preparation method thereof |
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