CN112501708B - Cool fiber and preparation method thereof - Google Patents
Cool fiber and preparation method thereof Download PDFInfo
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- CN112501708B CN112501708B CN202011314980.4A CN202011314980A CN112501708B CN 112501708 B CN112501708 B CN 112501708B CN 202011314980 A CN202011314980 A CN 202011314980A CN 112501708 B CN112501708 B CN 112501708B
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- cool
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- fiber
- functional powder
- bamboo fiber
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
-
- 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
-
- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
Abstract
The invention discloses a cool fiber which comprises the following substances in parts by weight: 10 to 15 parts of bamboo fiber particles; 5 to 10 parts of cool functional powder; 80 to 100 parts of polyamide 6 chips; the invention also discloses a preparation method of the cool fiber, which comprises the steps of adding the bamboo fiber particles and the cool functional powder into the polyamide 6 slices, melting and blending the mixture, and then forming micropores through a profiled spinneret plate; when the bamboo fiber particles and the cool feeling functional powder pass through the micropores, the bamboo fiber particles and the cool feeling functional powder are self-arranged in the fibers, and the particles with smaller particle size are distributed around the particles with larger particle size; according to the invention, the cool functional powder is matched with the hollow structure of the fiber, so that the specific surface area of the cool fiber is increased, the contact between the cool fiber and the skin is improved, and the Q-max is effectively improved.
Description
Technical Field
The invention relates to the technical field of functional fibers, in particular to a cool fiber and a preparation method thereof.
Background
The sweat of the human body in the process of wearing the clothes is discharged, so that the moisture is accumulated on the fibers, the skin is sticky and feels wet and cold, if the sweat can be discharged in time to be led out of the fabric, the moisture absorption and sweat releasing are facilitated, and the skin of the human body can feel lasting cool touch.
The instantaneous maximum heat flux (Q-max) of the fabric reaches 0.259 (J/cm)2Sec), the larger the Q-max value is, the more noticeable the instantaneous cooling sensation is. According to FTTS-FA-019 'fabric instant cooling verification specification', when Q-max is more than or equal to 0.14J/cm2And at sec, the product can obtain an instant cool functional textile seal, and the fiber is the fiber with cool feeling.
The existing cool fiber is prepared by adding jade powder, aluminum nitride powder or silicon carbide powder serving as cool functional powder into polymer slices through a melt blending method, and the cool fiber brings cool touch through the contact of the cool functional powder and the skin; how to improve the cool touch of the cool fiber by increasing Q-max is required to further improve the internal structure of the cool fiber.
Disclosure of Invention
The invention aims to provide a cool fiber, which increases the specific surface area of the cool fiber, improves the contact between the cool fiber and the skin and effectively improves the Q-max by matching cool functional powder with a fiber hollow structure.
In order to solve the technical problem, the technical scheme of the invention is as follows: the cool fiber comprises the following substances in parts by weight:
10-15 parts of bamboo fiber particles;
5 to 10 portions of cool functional powder;
and 80 to 100 parts of polyamide 6 chips.
The composition further preferably comprises the following substances in parts by mass:
12 parts of bamboo fiber particles;
7 parts of cool functional powder;
and 87 parts of polyamide 6 chips.
Preferably, the cool functional powder comprises the following substances:
titanium dioxide and jade powder, wherein the mass ratio of the titanium dioxide to the jade powder is 1: 1.
According to the invention, titanium dioxide and jade powder are mixed in equal amount, so that on one hand, the dosage of the jade powder is effectively reduced, and the cost is effectively reduced; meanwhile, the cool feeling of the fiber is ensured by matching titanium dioxide with jade powder; meanwhile, the titanium dioxide is uniformly distributed in the fiber, so that the antibacterial property of the fiber is improved.
Preferably, the particle size of the bamboo fiber particles is 100-300 μm;
the particle diameter of the cool feeling functional powder is 100nm to 300 nm.
According to the invention, the micron-sized bamboo fiber particles are matched with the nanoscale cool-feeling functional powder, the bamboo fiber particles and the cool-feeling functional powder are uniformly dispersed in the polyamide 6, and the nanoscale cool-feeling functional powder particles are dispersed along the surface of the bamboo fiber particles through extrusion molding, namely, the small-particle cool-feeling functional powder is extruded to the surface of the fiber to be dispersed because the bamboo fiber particles occupy the space in the fiber, so that the contact area of the cool-feeling functional powder and a human body is increased, and the Q-max is effectively increased.
The second purpose of the invention is to provide a preparation method of the cool fiber, the invention has simple preparation process, effectively reduces cost and improves Q-max of the prepared fiber by melting and blending the raw material bamboo fiber particles and the cool functional powder.
In order to solve the technical problem, the technical scheme of the invention is as follows: a preparation method of cool fiber comprises adding bamboo fiber particles and cool functional powder into polyamide 6 slices, melting and blending, and molding by micropores of a profile spinneret plate;
when the bamboo fiber particles and the cool feeling functional powder pass through the micropores, the bamboo fiber particles and the cool feeling functional powder are arranged in the fiber in a self-arranging manner, and the particles with smaller particle sizes are distributed around the particles with larger particle sizes.
Further preferably, the preparation method of the bamboo fiber particles comprises the following steps:
s1, crushing bamboo chips, and soaking in 3-5% acetic acid solution for 8-12 h at 60-80 deg.C;
s2, filtering the solid substance of S1, and cleaning to be neutral;
and S3, drying, grinding and crushing to obtain bamboo fiber particles.
Preferably, the spinneret plate pores are cross-shaped, and the aspect ratio of the pores is 5 to 13. According to the invention, the cross-section of the prepared fiber is cross-shaped, so that the surface area of the fiber is effectively increased, and meanwhile, the cool feeling functional powder is limited at the superficial part of the fiber through the extrusion of the bamboo fiber particles, so that the distribution density of the cool feeling functional powder in the unit area of the superficial layer of the fiber is increased, and the cool feeling is effectively increased; meanwhile, the pore channels of the bamboo fiber particles conduct heat and moisture in the fibers, and the comfort and the cool touch feeling of the fibers after the fibers are made into textiles are improved.
The preferable pretreatment mode of the cool functional powder and the bamboo fiber particles before melt blending is as follows:
adding absolute ethyl alcohol into a three-neck flask, then adding cool functional powder and bamboo fiber particles, and adjusting the pH value of a reaction system to 3-5 by using formic acid; heating and stirring for 1 hour under the water bath condition of 65 ℃;
simultaneously ultrasonically dispersing a silane coupling agent KH550 in absolute ethyl alcohol;
mixing the two, stirring at 65 deg.C, keeping the temperature for 1h, cleaning, and drying to obtain mixture of cool feeling functional powder and bamboo fiber granule.
According to the invention, the dispersibility of the cool functional powder and the bamboo fiber particles is improved through pretreatment, so that the cool functional powder and the bamboo fiber particles are uniformly mixed in the forming process, the repulsion among the particles is reduced, the cool functional powder and the bamboo fiber particles are automatically arranged in sequence in the forming and extruding process, and the distribution of the cool functional powder on the surface of the fiber is improved.
The preferred process conditions for melt blending are as follows:
screw temperature: a first zone 264 ℃; a second zone 272 ℃; a third area is 270 ℃; a fourth zone of 270 ℃;
the invention ensures the continuous connection of macromolecules in the fiber and ensures that the fiber with the cross section has good strength by controlling the temperature of the screw and the spinning speed.
The third purpose of the invention is to provide the application of the cool fiber.
By adopting the technical scheme, the invention has the beneficial effects that:
firstly, uniformly dispersing cool functional powder and bamboo fiber particles in fibers by extrusion in a melt blending mode; natural pore channels in the bamboo fibers are used as channels for transferring heat and water vapor; meanwhile, the bamboo fiber particles extrude the cool functional powder to the superficial part of the fiber body through the volume of the bamboo fiber particles, so that the distribution of the cool functional powder on the superficial surface of the fiber is effectively improved, the contact area of the cool functional powder and a human body is increased, and the Q-max is effectively increased; the fibers still maintain reliable strength;
the cool feeling functional powder is used in the invention, which is equal to or less than the cool feeling functional powder in the prior art, and the cool feeling functional powder is more densely distributed on the surface of the fiber due to the space occupation of the bamboo fiber particles, and meanwhile, the water absorption and the antibacterial property of the fiber can also be improved by the bamboo fiber;
the preparation method is simple and convenient, facilitates the upgrading of the prior art, and improves the yield;
after the fibers prepared by the method are prepared into textiles, the Q-max can reach 0.416, the contact cool feeling is obvious, and meanwhile, the antibacterial effect is obvious.
Thereby achieving the above object of the present invention.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
Example 1
This example discloses a method for preparing bamboo fiber particles,
the method comprises the following steps:
s1, crushing bamboo chips, and soaking in 3-5% acetic acid solution for 8-12 h at 60-80 deg.C;
s2, filtering the solid substance of S1, and cleaning to be neutral;
and S3, drying, grinding and crushing to obtain bamboo fiber particles.
The particle size of the bamboo fiber particles prepared in the embodiment is 100-300 μm, and the particles are dried for later use.
Example 2
The embodiment discloses a pretreatment mode of cool functional powder and bamboo fiber particles before melt blending as follows:
adding absolute ethyl alcohol into a three-neck flask, then adding cool functional powder and bamboo fiber particles, and adjusting the pH value of a reaction system to 3-5 by using formic acid; heating and stirring for 1 hour under the water bath condition of 65 ℃;
simultaneously ultrasonically dispersing a silane coupling agent KH550 in absolute ethyl alcohol;
mixing the two, stirring at 65 deg.C, keeping the temperature for 1h, cleaning, and drying to obtain mixture of cool feeling functional powder and bamboo fiber granule.
Example 3
The embodiment discloses a preparation method of a cool fiber and the cool fiber prepared by the same, which comprises the following steps: the process conditions for melt blending were as follows:
adding bamboo fiber particles and cool functional powder into polyamide 6 slices, melting and blending according to the mass parts in the table 1, and then forming by micropores of a special-shaped spinneret plate;
screw temperature: a first zone 264 ℃; a second zone 272 ℃; a third area is 270 ℃; a fourth zone of 270 ℃;
when the bamboo fiber particles and the cool feeling functional powder pass through the micropores, the bamboo fiber particles and the cool feeling functional powder are arranged in the fiber in a self-arranging manner, and the particles with smaller particle sizes are distributed around the particles with larger particle sizes.
The spinneret plate micropores are cross-shaped, and the length-width ratio of the micropores is 5.
Example 4
The main difference between this example and example 3 is the amount of raw materials, which is detailed in table 1.
The spinneret plate micropores are cross-shaped, and the length-width ratio of the micropores is 8.
Example 5
The main difference between this example and example 3 is the amount of raw materials, which is detailed in table 1.
The spinneret plate micropores are cross-shaped, and the length-width ratio of the micropores is 10.
Example 6
The main difference between this example and example 3 is the amount of raw materials, which is detailed in table 1.
The spinneret plate micropores are cross-shaped, and the length-width ratio of the micropores is 13.
Comparative example
The main difference between this example and example 3 is that: no bamboo fibre particles were used and the amounts of other materials were as in table 1.
TABLE 1 raw materials and amounts of fibers of examples 3 to 6 and comparative examples
TABLE 2 evaluation index of Performance of fibers obtained in examples 3 to 6 and comparative example
The Q-max in Table 2 was tested as follows: the KES-F7 is used to contact with a cold and warm feeling tester, and the temperature of the sample carrying table is set to be (20 +/-0.5) DEG C, the temperature of the thermal detection plate is (35 +/-0.5) DEG C, and the Q-max value of the cool fiber cloth sample is measured, when the Q-max is more than or equal to 0.15J/cm2S indicates that the fabric has a cool feeling property at the moment of contact, and the larger the value, the stronger the cool feeling at the contact.
The values in tables 1 and 2 show that the values of the breaking strength and the breaking elongation of the samples 3 to 6 are smaller than those of the comparative example, the Q-max value is obviously improved compared with that of the comparative example, the distribution of cool functional powder is effectively changed by adding the bamboo fiber particles, and the Q-max value of the fabric made of the fibers is effectively improved by combining the pore structure of the bamboo fiber particles;
comparing the fiber performance indexes of example 6 and comparative example, it can be seen that the amount of cool functional powder used in the comparative example is significantly greater than that in example 6, but the Q-max value of example 6 is still higher than that in the comparative example.
According to the invention, the bamboo fiber particles and the cool functional powder are shared, so that the distribution position of the cool functional powder in the fiber is improved, the cool functional powder is uniformly distributed on the superficial surface of the fiber, the contact between the cool functional powder and the skin is improved, the bamboo fiber particles support the cool functional powder to be concentrated on the superficial surface of the fiber, and the internal pore channels of the bamboo fiber particles provide channels for the transfer of heat and moisture, so that the moisture accumulation is prevented, and the sultry is prevented.
The bamboo fiber particles and the titanium dioxide particles are used together, so that the antibacterial property of the fibers is effectively improved, and the antibacterial rate of the fibers prepared in the embodiments 3 to 6 is over 99 percent in 5 weeks according to GB/T2591-2003 test.
In conclusion, the textile made of the product is safe and comfortable to use.
Claims (9)
1. A cool fiber is characterized in that:
the composition comprises the following substances in parts by mass:
10-15 parts of bamboo fiber particles;
5 to 10 portions of cool functional powder;
80-100 parts of polyamide 6 slices;
adding bamboo fiber particles and cool functional powder into polyamide 6 slices, melting and blending, and then forming by micropores of a special-shaped spinneret plate;
when the bamboo fiber particles and the cool feeling functional powder pass through the micropores, the bamboo fiber particles and the cool feeling functional powder are self-arranged in the fibers, and the particles with smaller particle size are distributed around the particles with larger particle size;
the grain diameter of the bamboo fiber particles is 100-300 mu m;
the particle diameter of the cool feeling functional powder is 100nm to 300nm;
the spinneret plate micropores are cross-shaped, and the length-width ratio of the micropores is 5 to 13.
2. A cool fiber as claimed in claim 1 wherein:
the composition comprises the following substances in parts by mass:
12 parts of bamboo fiber particles;
7 parts of cool functional powder;
and 87 parts of polyamide 6 chips.
3. A cool fiber as claimed in claim 1 wherein: the cool feeling functional powder comprises the following substances:
titanium dioxide and jade powder, wherein the mass ratio of the titanium dioxide to the jade powder is 1: 1.
4. A method for preparing the cool fiber according to any one of claims 1 to 3, which comprises the steps of:
adding bamboo fiber particles and cool functional powder into polyamide 6 slices, melting and blending, and then forming by micropores of a special-shaped spinneret plate;
when the bamboo fiber particles and the cool feeling functional powder pass through the micropores, the bamboo fiber particles and the cool feeling functional powder are arranged in the fiber in a self-arranging manner, and the particles with smaller particle sizes are distributed around the particles with larger particle sizes.
5. The method of claim 4, wherein:
the preparation method of the bamboo fiber particles comprises the following steps:
s1, crushing bamboo chips, and soaking in 3-5% acetic acid solution for 8-12 h at 60-80 deg.C;
s2, filtering the solid substance of S1, and cleaning to be neutral;
and S3, drying, grinding and crushing to obtain bamboo fiber particles.
6. The method for preparing a cool fiber according to claim 4, wherein the method comprises the following steps: the spinneret plate micropores are cross-shaped, and the length-width ratio of the micropores is 5 to 13.
7. The method for preparing a cool fiber according to claim 4, wherein the method comprises the following steps: the pretreatment method of the cool functional powder and the bamboo fiber particles before melt blending is as follows:
adding absolute ethyl alcohol into a three-neck flask, then adding cool functional powder and bamboo fiber particles, and adjusting the pH value of a reaction system to 3-5 by using formic acid; heating and stirring for 1 hour under the water bath condition of 65 ℃;
simultaneously ultrasonically dispersing a silane coupling agent KH550 in absolute ethyl alcohol;
mixing the two, stirring at 65 deg.C, keeping the temperature for 1h, cleaning, and drying to obtain mixture of cool feeling functional powder and bamboo fiber granule.
8. The cool fiber and the preparation method thereof according to claim 4, wherein the cool fiber comprises the following components: the process conditions for melt blending were as follows:
screw temperature: a first zone 264 ℃; a second zone 272 ℃; a third area is 270 ℃; a fourth zone of 270 ℃;
the spinning speed is 600 m/min;
the draft multiple is 2.5 times to 4 times;
the temperature of the hot roller is 60 ℃;
the heat setting temperature is 120 ℃.
9. A textile woven from the cool feeling fiber of any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011314980.4A CN112501708B (en) | 2020-11-20 | 2020-11-20 | Cool fiber and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011314980.4A CN112501708B (en) | 2020-11-20 | 2020-11-20 | Cool fiber and preparation method thereof |
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| CN112501708A CN112501708A (en) | 2021-03-16 |
| CN112501708B true CN112501708B (en) | 2022-03-25 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337911A (en) * | 2021-06-28 | 2021-09-03 | 中纺高创(江苏)纳米技术开发有限公司 | Multifunctional cool nanometer textile fiber |
| CN117089948A (en) * | 2023-10-18 | 2023-11-21 | 汕头市兴裕泰纺织有限公司 | Cooling factor modified nylon fiber with special-shaped cross section, preparation method and application thereof in cool sense anti-ultraviolet fabric |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894146A (en) * | 2017-03-18 | 2017-06-27 | 中山市韩希服饰有限公司 | A kind of perspiratory and antibacterial underwear fabric and preparation method thereof |
| CN107740200A (en) * | 2017-09-30 | 2018-02-27 | 金华市伊万卡科技有限公司 | Multi-functional refrigerant sense fiber |
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- 2020-11-20 CN CN202011314980.4A patent/CN112501708B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894146A (en) * | 2017-03-18 | 2017-06-27 | 中山市韩希服饰有限公司 | A kind of perspiratory and antibacterial underwear fabric and preparation method thereof |
| CN107740200A (en) * | 2017-09-30 | 2018-02-27 | 金华市伊万卡科技有限公司 | Multi-functional refrigerant sense fiber |
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