CN110565205A - preparation method and application of fat-reducing functional fiber - Google Patents
preparation method and application of fat-reducing functional fiber Download PDFInfo
- Publication number
- CN110565205A CN110565205A CN201910845322.9A CN201910845322A CN110565205A CN 110565205 A CN110565205 A CN 110565205A CN 201910845322 A CN201910845322 A CN 201910845322A CN 110565205 A CN110565205 A CN 110565205A
- Authority
- CN
- China
- Prior art keywords
- functional
- fat
- polycondensation
- reducing
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 121
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 142
- 239000000843 powder Substances 0.000 claims abstract description 110
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 100
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims abstract description 72
- 229920000728 polyester Polymers 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 38
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000005886 esterification reaction Methods 0.000 claims abstract description 32
- 238000009987 spinning Methods 0.000 claims abstract description 30
- 239000002131 composite material Substances 0.000 claims abstract description 28
- 238000004537 pulping Methods 0.000 claims abstract description 28
- 230000001603 reducing effect Effects 0.000 claims abstract description 24
- 239000004952 Polyamide Substances 0.000 claims abstract description 17
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 17
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 239000003112 inhibitor Substances 0.000 claims abstract description 17
- 229920002647 polyamide Polymers 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000007664 blowing Methods 0.000 claims abstract description 8
- 238000007909 melt granulation Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 8
- 239000000243 solution Substances 0.000 claims description 83
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 51
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims description 45
- 229920002125 Sokalan® Polymers 0.000 claims description 41
- 239000004584 polyacrylic acid Substances 0.000 claims description 41
- 239000004744 fabric Substances 0.000 claims description 38
- 239000002243 precursor Substances 0.000 claims description 35
- 230000032050 esterification Effects 0.000 claims description 28
- 238000003756 stirring Methods 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 23
- 239000011259 mixed solution Substances 0.000 claims description 21
- 238000001354 calcination Methods 0.000 claims description 17
- 229920002292 Nylon 6 Polymers 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 14
- FUECGUJHEQQIFK-UHFFFAOYSA-N [N+](=O)([O-])[O-].[W+4].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-] Chemical compound [N+](=O)([O-])[O-].[W+4].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-] FUECGUJHEQQIFK-UHFFFAOYSA-N 0.000 claims description 12
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 8
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 239000004925 Acrylic resin Substances 0.000 claims description 6
- 230000007547 defect Effects 0.000 abstract description 7
- 239000004753 textile Substances 0.000 abstract description 4
- CBACFHTXHGHTMH-UHFFFAOYSA-N 2-piperidin-1-ylethyl 2-phenyl-2-piperidin-1-ylacetate;dihydrochloride Chemical compound Cl.Cl.C1CCCCN1C(C=1C=CC=CC=1)C(=O)OCCN1CCCCC1 CBACFHTXHGHTMH-UHFFFAOYSA-N 0.000 description 34
- 238000010438 heat treatment Methods 0.000 description 25
- 239000002245 particle Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 20
- 238000004321 preservation Methods 0.000 description 20
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 15
- 229910001930 tungsten oxide Inorganic materials 0.000 description 15
- 239000002775 capsule Substances 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 230000009467 reduction Effects 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 12
- 239000010410 layer Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 238000009413 insulation Methods 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 230000005855 radiation Effects 0.000 description 7
- 238000010008 shearing Methods 0.000 description 7
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical group [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 6
- WSXIMVDZMNWNRF-UHFFFAOYSA-N antimony;ethane-1,2-diol Chemical group [Sb].OCCO WSXIMVDZMNWNRF-UHFFFAOYSA-N 0.000 description 6
- 235000017281 sodium acetate Nutrition 0.000 description 6
- 239000001632 sodium acetate Substances 0.000 description 6
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical group C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 6
- 230000000844 anti-bacterial effect Effects 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 150000001408 amides Chemical class 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000012792 core layer Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000003094 microcapsule Substances 0.000 description 4
- 239000004005 microsphere Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910000416 bismuth oxide Inorganic materials 0.000 description 3
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 3
- 229910001451 bismuth ion Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000029219 regulation of pH Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- -1 tungsten ions Chemical class 0.000 description 1
- BDPNSNXYBGIFIE-UHFFFAOYSA-J tungsten;tetrahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[W] BDPNSNXYBGIFIE-UHFFFAOYSA-J 0.000 description 1
Classifications
-
- 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
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/32—Side-by-side 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
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
The invention relates to the technical field of functional textile fibers, in particular to a preparation method and application of a fat-reducing functional fiber, S1, preparing functional powder; s2, preparing functional polyester chips: putting functional powder, terephthalic acid and ethylene glycol into a container, adding a catalyst, an ether inhibitor and an antioxidant into the container, pulping to prepare pulping liquid, then carrying out pressurized esterification reaction on the pulping liquid to prepare esterified pulp, carrying out pre-polycondensation reaction and final polycondensation reaction on the esterified pulp, and carrying out melt granulation to prepare functional polyester chips; s3, preparing the fat-reducing functional fiber: and (4) taking the functional polyester chips and the polyamide chips prepared in the step (S2) as raw materials, adopting a parallel composite spinning method, and utilizing parallel spinneret plates to prepare the fat-reducing functional fiber through circular blowing, oiling, winding and drafting parallel composite fibers from the parallel spinneret plates. The invention effectively overcomes the defect of poor fat reducing effect of functional fibers in the prior art and achieves the purpose of efficiently reducing fat.
Description
Technical Field
The invention relates to the technical field of functional textile fibers, in particular to a preparation method and application of a fat-reducing functional fiber.
Background
Fat reduction means that the fat in the body exceeds the normal range, and the redundant fat on the body is reduced by various means due to the physical health of the body. Even if a moving machine is used for walking at ordinary times, energy is not generated and consumed at no time in the working process, but the consumption generated in the moving process of the human body is far less than the intake; therefore, how to develop a fiber or fabric with fat-reducing function has become an urgent problem to be solved in the current clothing industry.
In patent CN201510841948.4, a plurality of functional layers made of different materials are arranged to form a non-woven fabric, so as to achieve the purpose of heating and reducing fat; patent CN201721081613.8 discloses a heating and fat-reducing fabric made of two different yarns. Although both of the above two patents have the function of heating to reduce fat, the preparation process of patent CN201510841948.4 is complex, and not only the special functional fibers need to be prepared first, but also the special functional fibers need to be combined to achieve the purpose of heating to reduce fat, and the fabric has poor fat reduction effect and poor user experience due to poor moisture absorption and air permeability caused by the multi-layer functional fibers; the preparation process of patent CN201721081613.8 is also complex, and not only needs to prepare a layer of common RPET fibers and a layer of RPET fibers coated with a copper ion layer, but also needs to weave and overlap two layers of RPET fibers to achieve the purpose of heating and reducing fat, and the cloth has poor moisture absorption and permeability due to the two layers of RPET fibers, and finally results in poor fat reduction effect. Therefore, how to arrange the fat-reducing functional fiber with better fat-reducing effect becomes a need of the industry.
Disclosure of Invention
In view of the above, the invention provides a preparation method and an application of a functional fiber for reducing fat, so as to solve the defect of poor fat reducing effect of the functional fiber in the prior art.
The invention discloses a preparation method of fat-reducing functional fiber, which comprises the following steps:
S1, preparing functional powder: s11, firstly, dissolving bismuth nitrate powder in an ethylene glycol solution to prepare a bismuth nitrate solution for later use; s12, dispersing polyacrylic resin in an ethylene glycol solution, and stirring with ammonia water to dissolve the polyacrylic resin in the ethylene glycol solution to prepare a polyacrylic acid mixed solution; s13, adding potassium iodide into the polyacrylic acid mixed solution, dissolving, and obtaining a functional powder precursor solution after the solution is clarified; s14, dropwise adding the bismuth nitrate solution prepared in the step S1 into the functional powder precursor solution under ultrasonic and rapid stirring to perform ultrasonic stirring reaction for several hours; s15, adding tungsten nitrate powder, carrying out dissolving and adsorption reaction, continuously carrying out ultrasonic stirring reaction for a plurality of hours, filtering, and washing with deionized water for a plurality of times to obtain filter residue; s16, calcining the filter residue in an aerobic environment at 450-750 ℃ for several hours, and then calcining in an aerobic environment at 800-1000 ℃ to prepare the functional powder.
S2, preparing functional polyester chips: putting functional powder, terephthalic acid and ethylene glycol into a container, adding a catalyst, an ether inhibitor and an antioxidant into the container, pulping to prepare pulping liquid, then carrying out pressurized esterification reaction on the pulping liquid to prepare esterified pulp, carrying out pre-polycondensation reaction and final polycondensation reaction on the esterified pulp, and carrying out melt granulation to prepare functional polyester chips;
s3, preparing the fat-reducing functional fiber: and (4) taking the functional polyester chips and the polyamide chips prepared in the step (S2) as raw materials, adopting a parallel composite spinning method, and utilizing parallel spinneret plates to prepare the fat-reducing functional fiber through circular blowing, oiling, winding and drafting parallel composite fibers from the parallel spinneret plates.
As a preferable scheme of the present invention, in the step S11, the mass fraction of bismuth nitrate in the bismuth nitrate solution is 5 to 15%; in the step S12, the mass fraction of polyacrylic acid in the polyacrylic acid mixed solution is 5-15%; in the step S13, the mass fraction of potassium iodide in the functional powder precursor solution is 5 to 15%; in the step S14, the volume ratio of the functional powder precursor solution to the bismuth nitrate solution is 1:0.25 to 1: 0.50; in the step S15, the addition amount of the tungsten nitrate powder is 5 to 10% by mass of the functional powder precursor solution.
in a preferred embodiment of the present invention, in the step S2, the molar ratio of the terephthalic acid to the ethylene glycol is 1:1.05 to 1.25; the mass ratio of the functional powder to the glycol is 1: 50-200; the mass fraction of the catalyst relative to the terephthalic acid is 0.05 percent; the mass fraction of the ether inhibitor relative to the terephthalic acid is 0.05 percent; the mass fraction of the antioxidant relative to the terephthalic acid is 0.05 percent; in the step S2, the catalyst is ethylene glycol antimony, the ether inhibitor is sodium acetate, and the antioxidant is triphenyl phosphate; in the step S2, in the pressure esterification process, the pressure is 0.35-0.45 MPa, the esterification temperature is 230-245 ℃, and the esterification time is 2.5-3.0 h; the pre-polycondensation reaction is normal-pressure polycondensation, the pre-polycondensation temperature is 250-260 ℃, and the pre-polycondensation time is 0.5-1.5 h; in the step S2, the final polycondensation reaction is vacuum polycondensation, and low vacuum polycondensation is performed first, and then high vacuum polycondensation is performed; the vacuum degree of the low vacuum polycondensation is 500-5000 Pa, the low vacuum polycondensation time is 0.5-1.0 h, the vacuum degree of the high vacuum polycondensation is 50-100 Pa, and the high vacuum polycondensation time is 1.0-3.0 h.
In a preferred embodiment of the present invention, in step S3, the polyamide chips are specifically polyamide 6 chips, and the relative viscosity is 2.1 to 2.4.
In a preferred embodiment of the present invention, in step S3, the cross-sectional shape of the parallel spinneret plate is a pseudo-divided structure, wherein the convex side of the pseudo-divided structure is a circular structure, and the plane of the pseudo-divided structure is an elliptical structure, wherein the radius of the circular structure is equal to the radius of the minor axis of the ellipse, and the radius of the major axis of the ellipse is 1.5 times the radius of the minor axis of the ellipse.
In a preferred embodiment of the present invention, in step S3, the raised edge of the "÷" shaped structure of the parallel spinneret is the functional polyester chip melting component, and the plane of the "÷" shaped structure of the parallel spinneret is the polyamide chip melting component.
In a preferred embodiment of the present invention, in step S3, the fiber with a fat-reducing function has an elastic recovery rate of 90 to 94% and an elastic recovery rate of 0.01 to 0.02cN/dtex when stretched at 150% elongation.
The invention also discloses an application of the fat-reducing functional fiber, wherein the prepared fat-reducing functional fiber is applied to cloth, the heat insulation performance of a cloth sample prepared by using the fat-reducing functional fiber is subjected to heat radiation for 1min at 100 ℃ (15cm), the temperature difference between the front surface and the rear surface of the cloth sample before heating is 1.0-2.0 ℃, and the surface temperature of a fabric is higher than 100 ℃.
According to the technical scheme, the invention has the beneficial effects that: on one hand, the bismuth oxyiodide capsule particles with the spherical hollow structure can be effectively and uniformly dispersed on the surface of the functional fiber, so that the functional fiber is endowed with excellent heating and heat-insulating properties due to low addition, the lipid-reducing functional fiber can directly and uniformly generate heat through the bismuth oxyiodide capsule particles with the spherical hollow structure, and the defect of low lipid-reducing efficiency caused by nonuniform heating of the lipid-reducing functional fiber is effectively avoided; on the other hand, the invention uses the protruding surface in the structure of the shape imitating the Chinese character 'un' formed by the fat reducing functional fiber to stimulate the skin surface of the human body, and the temperature of the surface of the human body is raised through the far infrared emission and absorption functions of the fat reducing functional fiber, thereby accelerating the seepage of moisture, and the capillary effect of water vapor is improved through the groove structure with quick moisture conduction in the structure of the shape imitating the Chinese character 'un' and the difference of hydrophilicity of the high-viscosity amide and the heat-preservation polyester, thereby achieving the function of unidirectional moisture conduction, thereby realizing the quick export of the moisture, leading the prepared fat reducing functional fiber to quickly absorb the seeped moisture while heating to reduce fat, avoiding the poor fat reducing effect caused by the influence of the fat consumption of the human body due to the incapability of quick absorption of the moisture, and effectively solving the defect of poor fat reducing effect of the functional fiber in the prior art, achieving the purpose of reducing fat with high efficiency.
drawings
FIG. 1 is a schematic cross-sectional view of a fat-reducing functional fiber prepared according to the present invention;
FIG. 2 is an XRD spectrum of the functional powder prepared by the present invention;
FIG. 3 is a scanning electron microscope image of the functional powder prepared by the present invention;
FIG. 4 is a cross-sectional electron microscope atlas of the fat-reducing functional fiber prepared by the invention;
FIG. 5 is a photograph showing the three-dimensional crimp shape of the fat-reduced functional fiber prepared according to the present invention;
Description of the labeling: 1-a polyamide chip melt component; 2-functional polyester chip melting component.
Detailed Description
the following examples are intended to illustrate the invention in further detail, but are not intended to limit the invention in any way, and unless otherwise indicated, the reagents, methods and apparatus used in the invention are conventional in the art, and are not intended to limit the invention in any way.
The invention discloses a preparation method of fat-reducing functional fiber, which comprises the following steps:
S1, preparing functional powder: s11, firstly, dissolving bismuth nitrate powder in an ethylene glycol solution to prepare a bismuth nitrate solution for later use; s12, dispersing polyacrylic resin in an ethylene glycol solution, and stirring with ammonia water to dissolve the polyacrylic resin in the ethylene glycol solution to prepare a polyacrylic acid mixed solution; s13, adding potassium iodide into the polyacrylic acid mixed solution, dissolving, and obtaining a functional powder precursor solution after the solution is clarified; s14, dropwise adding the bismuth nitrate solution prepared in the step S1 into the functional powder precursor solution under ultrasonic and rapid stirring to perform ultrasonic stirring reaction for several hours; s15, adding tungsten nitrate powder, carrying out dissolving and adsorption reaction, continuously carrying out ultrasonic stirring reaction for a plurality of hours, filtering, and washing with deionized water for a plurality of times to obtain filter residue; s16, calcining the filter residue in an aerobic environment at 450-750 ℃ for several hours, and then calcining in an aerobic environment at 800-1000 ℃ to prepare the functional powder. In the step S11, the mass fraction of the bismuth nitrate in the bismuth nitrate solution is 5-15%; in the step S12, the mass fraction of polyacrylic acid in the polyacrylic acid mixed solution is 5-15%; in the step S13, the mass fraction of potassium iodide in the functional powder precursor solution is 5 to 15%; in the step S14, the volume ratio of the functional powder precursor solution to the bismuth nitrate solution is 1:0.25 to 1: 0.50; in the step S15, the addition amount of the tungsten nitrate powder is 5 to 10% by mass of the functional powder precursor solution. In the invention, the steps are mainly that firstly, bismuth nitrate reacts with potassium iodide to generate bismuth oxyiodide, then tungsten ions are introduced to the bismuth oxyiodide, and the bismuth oxyiodide antibacterial agent is loaded with tungsten oxide powder through calcination in an aerobic environment, so that the functional powder has an antibacterial effect and a far infrared emission function. In the reaction process, polyacrylic acid is mainly dispersed into small balls through emulsification, an ammonium polyacrylate salt solution is formed on the surface of polyacrylic acid through the pH regulation of ammonia water, bismuth ions in bismuth nitrate in an alkaline environment are complexed with amino groups, then potassium iodide and the bismuth ions react to generate bismuth oxyiodide microspheres, tungsten hydroxide precipitate is loaded on the surfaces of the bismuth oxyiodide microspheres through complexation and precipitation, after the reaction is finished, the polyacrylic acid in a core layer can be removed through high-temperature calcination, and meanwhile, the loading of tungsten oxide with a far infrared emission function on the bismuth oxyiodide microspheres is realized through the regulation of a calcination process, so that the problems that conventional loaded microsphere particles are too large, the stability of tungsten oxide in the powder is poor, and the particle size of functional powder is large and the dispersibility is poor are solved. And the aerobic environment set in the step is mainly used for completely decomposing the polyacrylic acid, so that the residue of the polyacrylic acid is prevented from influencing the color of the functional powder, and meanwhile, the distribution high-temperature decomposition is mainly used for decomposing the polyacrylic acid at low temperature, and is mainly beneficial to the formation of tungsten oxide at high temperature. In addition, the specific ratio of each product in step S1 is mainly to regulate the ratio of the core layer and the shell layer, the core layer contains polyacrylic acid with too much content and has too large particle size, which results in a thinner subsequent wall layer, which is easy to break the wall during calcination and difficult to form spherical complete functional powder, the core layer is too little and has thicker wall layer, which results in a particle size process of the wall layer, in the subsequent processing, the crushing pressure of the wall layer is increased, which results in difficulty in crushing and uniform dispersion in the melt spinning process, and the content of tungsten oxide powder is too low, which has poor far infrared effect, which results in too much bluing color and increased particle size of the powder.
s2, preparing functional polyester chips: putting functional powder, terephthalic acid and ethylene glycol into a container, adding a catalyst, an ether inhibitor and an antioxidant into the container, pulping to prepare pulping liquid, then carrying out pressurized esterification reaction on the pulping liquid to prepare esterified pulp, carrying out pre-polycondensation reaction and final polycondensation reaction on the esterified pulp, and carrying out melt granulation to prepare functional polyester chips; in the step S2, the molar ratio of the terephthalic acid to the ethylene glycol is 1: 1.05-1.25; the mass ratio of the functional powder to the glycol is 1: 50-200; the mass fraction of the catalyst relative to the terephthalic acid is 0.05 percent; the mass fraction of the ether inhibitor relative to the terephthalic acid is 0.05 percent; the antioxidant was 0.05% by mass relative to terephthalic acid. In the step S2, the catalyst is ethylene glycol antimony, the ether inhibitor is sodium acetate, and the antioxidant is triphenyl phosphate. In the step S2, in the pressure esterification process, the pressure is 0.35-0.45 MPa, the esterification temperature is 230-245 ℃, and the esterification time is 2.5-3.0 h; the pre-polycondensation reaction is normal-pressure polycondensation, the pre-polycondensation temperature is 250-260 ℃, and the pre-polycondensation time is 0.5-1.5 h. In the step S2, the final polycondensation reaction is vacuum polycondensation, and low vacuum polycondensation is performed first, and then high vacuum polycondensation is performed; the vacuum degree of the low vacuum polycondensation is 500-5000 Pa, the low vacuum polycondensation time is 0.5-1.0 h, the vacuum degree of the high vacuum polycondensation is 50-100 Pa, and the high vacuum polycondensation time is 1.0-3.0 h. In step S2, the functional powder is mainly prepared by a conventional polyester polymerization process, and the main purpose is to fully disperse and uniformly distribute the functional powder on the functional polyester chips.
S3, preparing the fat-reducing functional fiber: and (4) taking the functional polyester chips and the polyamide chips prepared in the step (S2) as raw materials, adopting a parallel composite spinning method, and utilizing parallel spinneret plates to prepare the fat-reducing functional fiber through circular blowing, oiling, winding and drafting parallel composite fibers from the parallel spinneret plates. The parallel composite spinning method is similar to the conventional parallel composite spinning process, and the spinning process is adjustable. In the step S3, the one-way moisture-conducting effect is achieved by utilizing the different hydrophilicity differences of the high-viscosity amide and the warm-keeping polyester, so that the moisture is quickly led out, the prepared fat-reducing functional fiber can quickly absorb the exuded moisture while heating to reduce fat, and the problem that the fat-reducing effect is poor due to the fact that the moisture cannot be quickly absorbed to influence the fat consumption of a human body is avoided. The temperature of the parallel composite spinning is 260-270 ℃, the melt flow ratio is 1:1, and the spinning speed is 3000-3500 m/min.
Specifically, in step S3, the polyamide chips are specifically polyamide 6 chips, and the relative viscosity is 2.1-2.4. The reason why the polyamide 6 chips and the relative viscosity are selected in the step S3 is that the relative viscosity of polyamide is mainly for convenience of spinning, and the relative viscosity of polyamide meeting the spinning requirement of the specific fat-reducing functional fiber is 2.1-2.4 through tests.
More specifically, in step S3, the cross-sectional shape of the parallel spinneret plate is a pseudo ÷ shaped structure, wherein the convex side of the pseudo ÷ shaped structure is a circular structure, and the plane of the pseudo ÷ shaped structure is an elliptical structure, wherein the radius of the circular structure is equal to the radius of the minor axis of the ellipse, and the radius of the major axis of the ellipse is 1.5 times the radius of the minor axis of the ellipse.
In step S3, the protruding side of the "÷" shaped structure of the parallel spinneret is the functional polyester chip melt component 2, and the plane of the "÷" shaped structure of the parallel spinneret is the polyamide chip melt component 1. The reason why the cross-sectional shape of the parallel spinneret plate is set to the "÷" shaped structure in step S3 is that: the fiber groove structure is mainly improved, the difference of the hydrophilicity of the polyester and the polyamide is endowed, the corresponding difference of the hydrophilicity and the hygroscopicity can reach the maximum value only on the basis of a certain groove structure, the corresponding capillary effect is optimal, and therefore the purpose of rapid moisture absorption and moisture conduction is achieved.
Further, in step S3, the fiber with fat-reducing function has an elastic recovery rate of 90 to 94% and an elastic recovery rate of 0.01 to 0.02cN/dtex when stretched at 150% elongation.
The invention also discloses an application of the fat-reducing functional fiber, wherein the prepared fat-reducing functional fiber is applied to cloth, the heat insulation performance of a cloth sample prepared by using the fat-reducing functional fiber is subjected to heat radiation for 1min at 100 ℃ (15cm), the temperature difference between the front surface and the rear surface of the cloth sample before heating is 1.0-2.0 ℃, and the surface temperature of a fabric is higher than 100 ℃.
Bismuth oxyiodide has excellent heating, heat-preserving and catalytic effects, is widely applied to preparation of heating and heat-preserving powder, and has large heating and heat-preserving activity, so that the bismuth oxyiodide is difficult to be added and dispersed in situ in a polymer, and the application of the bismuth oxyiodide in a polyester matrix is difficult; in the technical scheme disclosed by the invention, the heating and heat-insulating properties of bismuth oxyiodide are utilized, the surface of the bismuth oxyiodide is passivated and coated by polyacrylic acid, in the process of coating bismuth oxyiodide, a hollow microcapsule structure is prepared, which can not only meet the requirement of dispersing bismuth oxyiodide in a polyester matrix, and the spherical heating and heat-preserving nano particles are not subjected to high shearing action in the polymerization process, so that the nano particles can be uniformly dispersed in a polymerization matrix, the hollow structure can be destroyed by utilizing the high-pressure high-speed shearing of a spinneret orifice in the melt spinning process of the bismuth oxide with the hollow structure, thereby realizing the dispersion of the heating and heat preservation bismuth oxyiodide on the fiber, and during the drafting and shearing process of the spherical hollow bismuth oxyiodide, the fiber surface is beneficial to rapid dispersion under the influence of shearing action, so that the fiber is endowed with excellent heating and heat preservation performance under the condition of low addition. Meanwhile, in the aspect of preparing functional powder, the excellent far infrared absorption and reflection effects are given to the powder by utilizing the far infrared emission function containing the tungsten nitrate structure, so that the functional powder has the warm-keeping effect and the far infrared emission and absorption effects, and the excellent warm-keeping function of the fiber is ensured on the fiber fabric through the design of the fiber hollow structure.
obviously, more specifically, the specific reason why the bismuth oxyiodide capsule particles having a hollow microcapsule structure are uniformly distributed and arranged on the fat-reducing functional fiber according to the present invention is that: oxidizing bismuth nitrate by utilizing potassium iodide to form hollow bismuth oxyiodide particles with efficient heating and heat preservation catalysis effects, and then passivating and coating the surfaces of the bismuth oxyiodide particles by utilizing polyacrylic acid to form hollow microcapsule-structured bismuth oxyiodide capsule particles; then dissolving and adsorbing the tungsten nitrate powder particles into bismuth oxyiodide capsule particles, so that the prepared functional powder has the effects of keeping warm and far infrared emission and absorption; meanwhile, bismuth oxyiodide capsule particles with a hollow microcapsule structure are dispersed in a polyester matrix, and the bismuth oxyiodide capsule particles are not subjected to high shearing action in the polymerization process, so that the bismuth oxyiodide capsule particles can be uniformly dispersed in the polymerization matrix to form functional polyester chips; finally, bismuth oxyiodide capsule particles with a hollow microcapsule structure are sheared at high pressure and high speed through spinneret orifices in the high-pressure melting spinning process of parallel spinneret plates to destroy the hollow structure, so that the dispersion of the bismuth oxyiodide capsule particles on the fiber is realized, and the spherical hollow bismuth oxyiodide capsule particles are influenced by the shearing action in the drafting shearing process and are beneficial to being quickly and uniformly dispersed on the surface of the functional fiber, so that the functional fiber is endowed with excellent heating and heat-insulating properties due to low addition, the spherical hollow bismuth oxyiodide capsule particles are effectively and uniformly dispersed on the surface of the functional fiber, the functional fiber is endowed with excellent heating and heat-insulating properties due to low addition, and the lipid-reducing functional fiber can directly and uniformly generate heat through the spherical hollow bismuth oxyiodide capsule particles, the defect that the fat reducing efficiency is low due to uneven heating of the fat reducing functional fiber is effectively avoided.
In addition, as shown in fig. 1-5, the invention adopts a parallel composite spinning method, and the finally prepared fat-reducing functional fiber forms an imitated/divided structure by designing the structure with the imitated/divided structure; the invention uses the protruding surface in the structure of the shape imitating the Chinese character 'du' formed by the fat-reducing functional fiber to stimulate the skin surface of the human body, the surface temperature of the human body is raised through the far infrared emission and absorption functions of the fat reducing functional fiber, thereby achieving the purpose of accelerating the seepage of moisture, improving the capillary effect of water vapor by the structure of the channel which is divided into the shape of Chinese character 'di' and has the function of unidirectional moisture conduction by utilizing the different hydrophilicity differences of the high-viscosity amide and the thermal polyester, thereby realizing the rapid derivation of the moisture, leading the prepared fat-reducing functional fiber to rapidly absorb the exuded moisture while heating and reducing the fat, avoiding the poor fat-reducing effect caused by the influence on the fat consumption of the human body due to the rapid absorption of the moisture, thereby effectively solving the defect of poor fat reducing effect of functional fibers in the prior art and achieving the purpose of high-efficiency fat reduction.
the following are specific examples:
Example 1
the embodiment of the invention discloses a preparation method of fat-reducing functional fiber, which comprises the following steps:
Preparation of warm-keeping functional powder
firstly, dissolving bismuth nitrate powder in an ethylene glycol solution to prepare a bismuth nitrate solution for later use. Then, the polyacrylic acid resin is dispersed in the ethylene glycol solution, and the polyacrylic acid resin is dissolved in the ethylene glycol solution by stirring with ammonia water to prepare a polyacrylic acid mixed solution. Then adding potassium iodide into a polyacrylic acid mixed solution, dissolving, obtaining a heat-preservation functional powder precursor solution after the solution is clarified, dropwise adding a bismuth nitrate glycol solution into the heat-preservation functional powder precursor solution under ultrasonic and rapid stirring, carrying out ultrasonic stirring reaction for 4 hours, then adding tungsten nitrate powder, carrying out dissolving and adsorption reaction, continuously carrying out ultrasonic stirring reaction for 4 hours, then filtering, washing filter residues with deionized water for 3 times, calcining the filter residues in an aerobic environment at 650 ℃ for 3 hours, and then calcining at 900 ℃ for 15 minutes to prepare the heat-preservation functional powder. The mass fraction of bismuth nitrate in the diethylene alcohol solution of bismuth nitrate is 15 percent; the mass fraction of the polyacrylic acid mixed solution is 15%; the mass fraction of potassium iodide in the heat-insulating functional powder precursor solution is 15%; the volume ratio of the warm-keeping functional powder precursor to the ethylene glycol solution of bismuth nitrate is 1: 0.50; the addition amount of the tungsten oxide is 10 percent of the mass fraction of the precursor of the warm-keeping functional powder.
Preparation of (II) functional polyester chip
The method comprises the steps of firstly pulping the heat-preservation functional powder obtained in the step (I), terephthalic acid and ethylene glycol, simultaneously adding ethylene glycol antimony serving as a catalyst, sodium acetate serving as an ether inhibitor and triphenyl phosphate serving as an antioxidant, pulping for 15min at the temperature of 80 ℃ to obtain a pulping liquid, then carrying out pressurized esterification on the pulping liquid to prepare an esterification slurry, carrying out pre-polycondensation reaction and final polycondensation reaction, and carrying out melt granulation to prepare the functional polyester chip. The molar ratio of the terephthalic acid to the ethylene glycol is 1: 1.25; the mass ratio of the warm-keeping functional powder to the glycol is 1: 50; the mass fraction of the catalyst relative to the terephthalic acid is 0.05 percent; the mass fraction of the ether inhibitor relative to the terephthalic acid is 0.05 percent; the mass fraction of the antioxidant relative to the terephthalic acid is 0.05 percent; in the pressure esterification process, the pressure is 0.35-0.45 MPa, the esterification temperature is 230-245 ℃, and the esterification time is 3.0 h; the pre-polycondensation reaction is normal-pressure polycondensation, the pre-polycondensation temperature is 250-260 ℃, and the pre-polycondensation time is 1.5 h; the final polycondensation reaction is vacuum polycondensation, and low vacuum polycondensation is firstly carried out, and then high vacuum polycondensation is carried out; the low vacuum degree of vacuum polycondensation is 500-5000 Pa, the low vacuum time of polycondensation is 01.0h, the high vacuum degree of vacuum polycondensation is 50-100 Pa, and the high vacuum time of polycondensation is 3.0 h.
Preparation of functional fiber for fat reduction
And (3) taking the functional polyester chips and the high-viscosity polyamide 6 chips prepared in the step (II) as raw materials, adopting a parallel composite spinning method, and using parallel spinneret plates with a structure imitating the shape of a Chinese character 'di', and performing circular blowing, oiling, winding and drafting on parallel composite fibers from the parallel spinneret plates to prepare the functional fiber for fat reduction with antibacterial, warm keeping and elasticity. The relative viscosity of the high-viscosity polyamide 6 slices is 2.4; the cross-sectional shape of the parallel spinneret plate is of a structure imitating the shape of a division Chinese character 'u', wherein the convex edge of the structure imitating the shape of the division Chinese character 'u' is of a circular structure, the plane of the structure imitating the shape of the division Chinese character 'u' is of an elliptical structure, the radius of the circular structure is equal to the radius of the short axis of an ellipse, and the radius of the long axis of the ellipse is 1.5 times of the radius of the short axis of the ellipse. The round imitating the shape of the Chinese character 'un' is a functional polyester component, and the ellipse imitating the shape of the Chinese character 'un' is a high-viscosity polyamide 6 component. The parallel composite spinning process is similar to the conventional parallel composite spinning process, and the spinning process is adjustable.
The invention also discloses an application of the fat-reducing functional fiber, wherein the prepared fat-reducing functional fiber is applied to cloth, the heat insulation performance of a cloth sample prepared by utilizing the fat-reducing functional fiber is thermally radiated for 1min at 100 ℃ (15cm), the surface temperature difference before and after the cloth sample is heated is 1.2 ℃, and the surface temperature of a fabric is more than 100 ℃; the elastic recovery rate of a fabric sample prepared by using the fat-reducing functional fiber is 94%, and the elastic recovery rate of the fabric sample after being stretched for 150% is 0.02 cN/dtex.
Example 2
The embodiment of the invention discloses a preparation method of fat-reducing functional fiber, which comprises the following steps:
Preparation of warm-keeping functional powder
Firstly, dissolving bismuth nitrate powder in an ethylene glycol solution to prepare a bismuth nitrate solution for later use. Then, the polyacrylic acid resin is dispersed in the ethylene glycol solution, and the polyacrylic acid resin is dissolved in the ethylene glycol solution by stirring with ammonia water to prepare a polyacrylic acid mixed solution. Then adding potassium iodide into a polyacrylic acid mixed solution, dissolving, obtaining a heat-preservation functional powder precursor solution after the solution is clarified, dropwise adding a bismuth nitrate glycol solution into the heat-preservation functional powder precursor solution under ultrasonic and rapid stirring, carrying out ultrasonic stirring reaction for 4 hours, then adding tungsten nitrate powder, carrying out dissolving and adsorption reaction, continuously carrying out ultrasonic stirring reaction for 4 hours, then filtering, washing filter residues with deionized water for 3 times, calcining the filter residues in an aerobic environment at 650 ℃ for 2 hours, and then calcining at 900 ℃ for 15 minutes to prepare the heat-preservation functional powder. The mass fraction of bismuth nitrate in the diethylene alcohol solution of bismuth nitrate is 5 percent; the mass fraction of the polyacrylic acid mixed solution is 5%; the mass fraction of potassium iodide in the precursor solution of the heat-insulating functional powder is 5 percent; the volume ratio of the precursor of the warm-keeping functional powder to the ethylene glycol solution of bismuth nitrate is 1: 0.25; the addition amount of the tungsten oxide is 5-10% of the mass fraction of the precursor of the warm-keeping functional powder.
preparation of (II) functional polyester chip
The method comprises the steps of firstly pulping the heat-preservation functional powder obtained in the step (I), terephthalic acid and ethylene glycol, simultaneously adding ethylene glycol antimony serving as a catalyst, sodium acetate serving as an ether inhibitor and triphenyl phosphate serving as an antioxidant, pulping for 15min at the temperature of 80 ℃ to obtain a pulping liquid, then carrying out pressurized esterification on the pulping liquid to prepare an esterification slurry, carrying out pre-polycondensation reaction and final polycondensation reaction, and carrying out melt granulation to prepare the functional polyester chip. The molar ratio of the terephthalic acid to the ethylene glycol is 1: 1.05; the mass ratio of the warm-keeping functional powder to the glycol is 1: 200; the mass fraction of the catalyst relative to the terephthalic acid is 0.05 percent; the mass fraction of the ether inhibitor relative to the terephthalic acid is 0.05 percent; the mass fraction of the antioxidant relative to the terephthalic acid is 0.05 percent; in the pressure esterification process, the pressure is 0.35-0.45 MPa, the esterification temperature is 230-245 ℃, and the esterification time is 2.5 h; the pre-polycondensation reaction is normal-pressure polycondensation, the pre-polycondensation temperature is 250-260 ℃, and the pre-polycondensation time is 0.5 h; the final polycondensation reaction is vacuum polycondensation, and low vacuum polycondensation is firstly carried out, and then high vacuum polycondensation is carried out; the low vacuum degree of vacuum polycondensation is 500-5000 Pa, the low vacuum time of polycondensation is 0.5h, the high vacuum degree of vacuum polycondensation is 50-100 Pa, and the high vacuum time of polycondensation is 1.0 h.
Preparation of functional fiber for fat reduction
And (3) taking the functional polyester chips and the high-viscosity polyamide 6 chips prepared in the step (II) as raw materials, adopting a parallel composite spinning method, and using parallel spinneret plates with a structure imitating the shape of a Chinese character 'di', and performing circular blowing, oiling, winding and drafting on parallel composite fibers from the parallel spinneret plates to prepare the functional fiber for fat reduction with antibacterial, warm keeping and elasticity. The relative viscosity of the high-viscosity polyamide 6 slices is 2.1; the cross-sectional shape of the parallel spinneret plate is of a structure imitating the shape of a division Chinese character 'u', wherein the convex edge of the structure imitating the shape of the division Chinese character 'u' is of a circular structure, the plane of the structure imitating the shape of the division Chinese character 'u' is of an elliptical structure, the radius of the circular structure is equal to the radius of the short axis of an ellipse, and the radius of the long axis of the ellipse is 1.5 times of the radius of the short axis of the ellipse. The round imitating the shape of the Chinese character 'un' is a functional polyester component, and the ellipse imitating the shape of the Chinese character 'un' is a high-viscosity polyamide 6 component. The parallel composite spinning process is similar to the conventional parallel composite spinning process, and the spinning process is adjustable.
The invention also discloses an application of the fat-reducing functional fiber, wherein the prepared fat-reducing functional fiber is applied to cloth, the heat insulation performance of a cloth sample prepared by utilizing the fat-reducing functional fiber is thermally radiated for 1min at 100 ℃ (15cm), the surface temperature difference before and after the cloth sample is heated is 1.0 ℃, and the surface temperature of a fabric is more than 100 ℃; the elastic recovery rate of a fabric sample prepared by using the fat-reducing functional fiber is 90%, and the elastic recovery rate of the fabric sample after stretching for 150% is 0.01 cN/dtex.
example 3
The embodiment of the invention discloses a preparation method of fat-reducing functional fiber, which comprises the following steps:
Preparation of warm-keeping functional powder
Firstly, dissolving bismuth nitrate powder in an ethylene glycol solution to prepare a bismuth nitrate solution for later use. Then, the polyacrylic acid resin is dispersed in the ethylene glycol solution, and the polyacrylic acid resin is dissolved in the ethylene glycol solution by stirring with ammonia water to prepare a polyacrylic acid mixed solution. Then adding potassium iodide into a polyacrylic acid mixed solution, dissolving, obtaining a heat-preservation functional powder precursor solution after the solution is clarified, dropwise adding a bismuth nitrate glycol solution into the heat-preservation functional powder precursor solution under ultrasonic and rapid stirring, carrying out ultrasonic stirring reaction for 4 hours, then adding tungsten nitrate powder, carrying out dissolving and adsorption reaction, continuously carrying out ultrasonic stirring reaction for 4 hours, then filtering, washing filter residues with deionized water for 3 times, calcining the filter residues in an aerobic environment at 650 ℃ for 2.5 hours, and then calcining at 900 ℃ for 15 minutes to prepare the heat-preservation functional powder. The mass fraction of bismuth nitrate in the diethylene alcohol solution of bismuth nitrate is 7.5%; the mass fraction of the polyacrylic acid mixed solution is 7.5%; the mass fraction of potassium iodide in the precursor solution of the heat-insulating functional powder is 7.5 percent; the volume ratio of the warm-keeping functional powder precursor to the ethylene glycol solution of bismuth nitrate is 1: 0.35; the addition amount of the tungsten oxide is 7.5 percent of the mass fraction of the precursor of the warm-keeping functional powder.
Preparation of (II) functional polyester chip
The method comprises the steps of firstly pulping the heat-preservation functional powder obtained in the step (I), terephthalic acid and ethylene glycol, simultaneously adding ethylene glycol antimony serving as a catalyst, sodium acetate serving as an ether inhibitor and triphenyl phosphate serving as an antioxidant, pulping for 15min at the temperature of 80 ℃ to obtain a pulping liquid, then carrying out pressurized esterification on the pulping liquid to prepare an esterification slurry, carrying out pre-polycondensation reaction and final polycondensation reaction, and carrying out melt granulation to prepare the functional polyester chip. The molar ratio of the terephthalic acid to the ethylene glycol is 1: 1.25; the mass ratio of the warm-keeping functional powder to the glycol is 1: 100; the mass fraction of the catalyst relative to the terephthalic acid is 0.05 percent; the mass fraction of the ether inhibitor relative to the terephthalic acid is 0.05 percent; the mass fraction of the antioxidant relative to the terephthalic acid is 0.05 percent; in the pressure esterification process, the pressure is 0.35-0.45 MPa, the esterification temperature is 230-245 ℃, and the esterification time is 2.5 h; the pre-polycondensation reaction is normal-pressure polycondensation, the pre-polycondensation temperature is 250-260 ℃, and the pre-polycondensation time is 1.0 h; the final polycondensation reaction is vacuum polycondensation, and low vacuum polycondensation is firstly carried out, and then high vacuum polycondensation is carried out; the low vacuum degree of vacuum polycondensation is 500-5000 Pa, the low vacuum time of polycondensation is 1.0h, the high vacuum degree of vacuum polycondensation is 50-100 Pa, and the high vacuum time of polycondensation is 2.0 h.
Preparation of functional fiber for fat reduction
And (3) taking the functional polyester chips and the high-viscosity polyamide 6 chips prepared in the step (II) as raw materials, adopting a parallel composite spinning method, and using parallel spinneret plates with a structure imitating the shape of a Chinese character 'di', and performing circular blowing, oiling, winding and drafting on parallel composite fibers from the parallel spinneret plates to prepare the functional fiber for fat reduction with antibacterial, warm keeping and elasticity. The relative viscosity of the high-viscosity polyamide 6 slices is 2.2; the cross-sectional shape of the parallel spinneret plate is of a structure imitating the shape of a division Chinese character 'u', wherein the convex edge of the structure imitating the shape of the division Chinese character 'u' is of a circular structure, the plane of the structure imitating the shape of the division Chinese character 'u' is of an elliptical structure, the radius of the circular structure is equal to the radius of the short axis of an ellipse, and the radius of the long axis of the ellipse is 1.5 times of the radius of the short axis of the ellipse. The round imitating the shape of the Chinese character 'un' is a functional polyester component, and the ellipse imitating the shape of the Chinese character 'un' is a high-viscosity polyamide 6 component. The parallel composite spinning process is similar to the conventional parallel composite spinning process, and the spinning process is adjustable.
The invention also discloses an application of the fat-reducing functional fiber, wherein the prepared fat-reducing functional fiber is applied to cloth, the heat insulation performance of a cloth sample prepared by utilizing the fat-reducing functional fiber is thermally radiated for 1min at 100 ℃ (15cm), the surface temperature difference before and after the cloth sample is heated is 1.3 ℃, and the surface temperature of a fabric is more than 100 ℃; the elastic recovery rate of a cloth sample prepared by using the fat-reducing functional fiber is 92%, and the elastic recovery rate of the cloth sample after stretching for 150% is 0.015 cN/dtex.
example 4
The embodiment of the invention discloses a preparation method of fat-reducing functional fiber, which comprises the following steps:
Preparation of warm-keeping functional powder
Firstly, dissolving bismuth nitrate powder in an ethylene glycol solution to prepare a bismuth nitrate solution for later use. Then, the polyacrylic acid resin is dispersed in the ethylene glycol solution, and the polyacrylic acid resin is dissolved in the ethylene glycol solution by stirring with ammonia water to prepare a polyacrylic acid mixed solution. Then adding potassium iodide into a polyacrylic acid mixed solution, dissolving, obtaining a heat-preservation functional powder precursor solution after the solution is clarified, dropwise adding a bismuth nitrate glycol solution into the heat-preservation functional powder precursor solution under ultrasonic and rapid stirring, carrying out ultrasonic stirring reaction for 4 hours, then adding tungsten nitrate powder, carrying out dissolving and adsorption reaction, continuously carrying out ultrasonic stirring reaction for 4 hours, then filtering, washing filter residues with deionized water for 3 times, calcining the filter residues in an aerobic environment at 650 ℃ for 2.5 hours, and then calcining at 900 ℃ for 15 minutes to prepare the heat-preservation functional powder. The mass fraction of bismuth nitrate in the diethylene alcohol solution of bismuth nitrate is 15 percent; the mass fraction of the polyacrylic acid mixed solution is 5%; the mass fraction of potassium iodide in the heat-insulating functional powder precursor solution is 10%; the volume ratio of the precursor of the warm-keeping functional powder to the ethylene glycol solution of bismuth nitrate is 1: 0.25; the addition amount of the tungsten oxide is 5% of the mass fraction of the precursor of the warm-keeping functional powder.
Preparation of (II) functional polyester chip
The method comprises the steps of firstly pulping the heat-preservation functional powder obtained in the step (I), terephthalic acid and ethylene glycol, simultaneously adding ethylene glycol antimony serving as a catalyst, sodium acetate serving as an ether inhibitor and triphenyl phosphate serving as an antioxidant, pulping for 15min at the temperature of 80 ℃ to obtain a pulping liquid, then carrying out pressurized esterification on the pulping liquid to prepare an esterification slurry, carrying out pre-polycondensation reaction and final polycondensation reaction, and carrying out melt granulation to prepare the functional polyester chip. The molar ratio of the terephthalic acid to the ethylene glycol is 1: 1.25; the mass ratio of the warm-keeping functional powder to the glycol is 1: 75; the mass fraction of the catalyst relative to the terephthalic acid is 0.05 percent; the mass fraction of the ether inhibitor relative to the terephthalic acid is 0.05 percent; the mass fraction of the antioxidant relative to the terephthalic acid is 0.05 percent; in the pressure esterification process, the pressure is 0.35-0.45 MPa, the esterification temperature is 230-245 ℃, and the esterification time is 2.5 h; the pre-polycondensation reaction is normal-pressure polycondensation, the pre-polycondensation temperature is 250-260 ℃, and the pre-polycondensation time is 1.5 h; the final polycondensation reaction is vacuum polycondensation, and low vacuum polycondensation is firstly carried out, and then high vacuum polycondensation is carried out; the low vacuum degree of vacuum polycondensation is 500-5000 Pa, the low vacuum time of polycondensation is 0.5h, the high vacuum degree of vacuum polycondensation is 50-100 Pa, and the high vacuum time of polycondensation is 2.0 h.
Preparation of functional fiber for fat reduction
and (3) taking the functional polyester chips and the high-viscosity polyamide 6 chips prepared in the step (II) as raw materials, adopting a parallel composite spinning method, and using parallel spinneret plates with a structure imitating the shape of a Chinese character 'di', and performing circular blowing, oiling, winding and drafting on parallel composite fibers from the parallel spinneret plates to prepare the functional fiber for fat reduction with antibacterial, warm keeping and elasticity. The relative viscosity of the high-viscosity polyamide 6 slices is 2.4; the cross-sectional shape of the parallel spinneret plate is of a structure imitating the shape of a division Chinese character 'u', wherein the convex edge of the structure imitating the shape of the division Chinese character 'u' is of a circular structure, the plane of the structure imitating the shape of the division Chinese character 'u' is of an elliptical structure, the radius of the circular structure is equal to the radius of the short axis of an ellipse, and the radius of the long axis of the ellipse is 1.5 times of the radius of the short axis of the ellipse. The round imitating the shape of the Chinese character 'un' is a functional polyester component, and the ellipse imitating the shape of the Chinese character 'un' is a high-viscosity polyamide 6 component. The parallel composite spinning process is similar to the conventional parallel composite spinning process, and the spinning process is adjustable.
the invention also discloses an application of the fat-reducing functional fiber, wherein the prepared fat-reducing functional fiber is applied to cloth, the heat insulation performance of a cloth sample prepared by utilizing the fat-reducing functional fiber is thermally radiated for 1min at 100 ℃ (15cm), the temperature difference between the front surface and the rear surface of the cloth sample before heating is 1.5 ℃, and the surface temperature of a fabric is more than 100 ℃; the elastic recovery rate of a fabric sample prepared by using the fat-reducing functional fiber is 92%, and the elastic recovery rate of the fabric sample after being stretched for 150% is 0.01 cN/dtex.
comparative example 1
The functional powder and the polyester chip are directly spun to obtain the polyester fiber yarn as in example 1.
comparative example 2
The polyamide fiber is prepared by directly spinning the functional powder and the polyamide chips in the same way as in the example 1.
Comparative example 3
The same mass fractions of the point bismuth oxide and tungsten oxide powders and the polyester chips as in example 1 were spun directly as in example 1.
Comparative example 4
The same mass fractions of the bismuth oxide and tungsten oxide powders and the polyamide chips as in example 1 were spun directly as in example 1.
Experimental tests were conducted on the anion far infrared radiation performance of the fibers prepared in examples 1 to 4 and comparative examples 1 to 4.
According to the standard of GBT 30125-2013 for detecting and evaluating far infrared performance of textiles, the far infrared function evaluation indexes of the textiles are as follows: the wavelength range of the far infrared rays is 5-14 mu m; the far infrared emissivity should not be lower than 0.88. Wherein, the far infrared emissivity refers to the ratio of the normal far infrared radiation intensity of the sample and the same temperature standard black board under the specified conditions. The temperature rise refers to the temperature rise value of the surface of the test sample measured after the far infrared radiation source irradiates the test sample for a certain time with constant radiation intensity. Therefore, the far infrared radiation performance of the fiber is represented by measuring the far infrared emissivity and the temperature rise of the fat-reducing far infrared polyester fiber, and the result is shown in table 1:
TABLE 1
And (4) conclusion: as can be seen from Table 1, the fat-reducing functional fiber prepared by the invention has excellent far infrared emission and heat insulation performance; because the tungsten oxide powder is loaded on the surface of the bismuth oxyiodide, the far infrared performance of the bismuth oxyiodide is further improved, and because the tungsten oxide has excellent far infrared emission effect, although the polyester has a certain far infrared emission function by adding the two powder mixing methods in the comparative examples 1 to 4, the content of the functional powder is the same as that of the embodiment 1, and because the bismuth oxyiodide and the tungsten oxide have synergistic modification effect after being loaded, the far infrared emissivity of the examples 1 to 4 is far greater than that of the comparative examples 1 to 4, and the particle size of the powder is small and the powder is easy to disperse after the bismuth oxyiodide loads the tungsten oxide, and the dispersion uniformity of the simple powder mixing method is poor, so that the heat insulation performance of the examples 1 to 4 is far better than that of the comparative examples 1 to 4. Obviously, the invention utilizes the protruding surface in the structure of the shape imitating the shape of a Chinese character 'un', the stimulation is carried out on the surface of the skin of the human body, the surface temperature of the human body is raised through the far infrared emission and absorption functions of the fat-reducing functional fiber, thereby achieving the purpose of accelerating the seepage of moisture, improving the capillary effect of water vapor by the structure of the channel which is divided into the shape of Chinese character 'di' and has the function of unidirectional moisture conduction by utilizing the different hydrophilicity differences of the high-viscosity amide and the thermal polyester, thereby realizing the rapid derivation of the moisture, leading the prepared fat-reducing functional fiber to rapidly absorb the exuded moisture while heating and reducing the fat, avoiding the poor fat-reducing effect caused by the influence on the fat consumption of the human body due to the rapid absorption of the moisture, thereby effectively solving the defect of poor fat reducing effect of functional fibers in the prior art and achieving the purpose of high-efficiency fat reduction.
the technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments can be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. a preparation method of a fat-reducing functional fiber is characterized by comprising the following steps:
S1, preparing functional powder;
S2, preparing functional polyester chips: putting functional powder, terephthalic acid and ethylene glycol into a container, adding a catalyst, an ether inhibitor and an antioxidant into the container, pulping to prepare pulping liquid, then carrying out pressurized esterification reaction on the pulping liquid to prepare esterified pulp, carrying out pre-polycondensation reaction and final polycondensation reaction on the esterified pulp, and carrying out melt granulation to prepare functional polyester chips;
s3, preparing the fat-reducing functional fiber: and (4) taking the functional polyester chips and the polyamide chips prepared in the step (S2) as raw materials, adopting a parallel composite spinning method, and utilizing parallel spinneret plates to prepare the fat-reducing functional fiber through circular blowing, oiling, winding and drafting parallel composite fibers from the parallel spinneret plates.
2. The method for preparing a fiber with fat reducing function according to claim 1, wherein the step S1 comprises the following steps:
S11, firstly, dissolving bismuth nitrate powder in an ethylene glycol solution to prepare a bismuth nitrate solution for later use;
S12, dispersing polyacrylic resin in an ethylene glycol solution, and stirring with ammonia water to dissolve the polyacrylic resin in the ethylene glycol solution to prepare a polyacrylic acid mixed solution;
S13, adding potassium iodide into the polyacrylic acid mixed solution, dissolving, and obtaining a functional powder precursor solution after the solution is clarified;
S14, dropwise adding the bismuth nitrate solution prepared in the step S1 into the functional powder precursor solution under ultrasonic and rapid stirring to perform ultrasonic stirring reaction for several hours;
S15, adding tungsten nitrate powder, carrying out dissolving and adsorption reaction, continuously carrying out ultrasonic stirring reaction for a plurality of hours, filtering, and washing with deionized water for a plurality of times to obtain filter residue;
S16, calcining the filter residue in an aerobic environment at 450-750 ℃ for several hours, and then calcining in an aerobic environment at 800-1000 ℃ to prepare the functional powder.
3. The method for preparing the fiber with the fat reducing function according to claim 2, wherein in the step S11, the mass fraction of bismuth nitrate in the bismuth nitrate solution is 5-15%; in the step S12, the mass fraction of polyacrylic acid in the polyacrylic acid mixed solution is 5-15%; in the step S13, the mass fraction of potassium iodide in the functional powder precursor solution is 5 to 15%; in the step S14, the volume ratio of the functional powder precursor solution to the bismuth nitrate solution is 1:0.25 to 1: 0.50; in the step S15, the addition amount of the tungsten nitrate powder is 5 to 10% by mass of the functional powder precursor solution.
4. The method of claim 1, wherein in step S2, the molar ratio of terephthalic acid to ethylene glycol is 1: 1.05-1.25; the mass ratio of the functional powder to the glycol is 1: 50-200; the mass fraction of the catalyst relative to the terephthalic acid is 0.05 percent; the mass fraction of the ether inhibitor relative to the terephthalic acid is 0.05 percent; the antioxidant was 0.05% by mass relative to terephthalic acid.
5. The method for preparing the fiber with the fat reducing function according to claim 4, wherein in the step S2, the pressure is 0.35 to 0.45MPa, the esterification temperature is 230 to 245 ℃, and the esterification time is 2.5 to 3.0 hours; the pre-polycondensation reaction is normal-pressure polycondensation, the pre-polycondensation temperature is 250-260 ℃, and the pre-polycondensation time is 0.5-1.5 h; the final polycondensation reaction is vacuum polycondensation, and low vacuum polycondensation is firstly carried out, and then high vacuum polycondensation is carried out; the vacuum degree of the low vacuum polycondensation is 500-5000 Pa, the low vacuum polycondensation time is 0.5-1.0 h, the vacuum degree of the high vacuum polycondensation is 50-100 Pa, and the high vacuum polycondensation time is 1.0-3.0 h.
6. The method of claim 1, wherein in step S3, the polyamide chips are polyamide 6 chips with a relative viscosity of 2.1-2.4.
7. the method of claim 6, wherein in step S3, the cross-sectional shape of the side-by-side spinneret is a pseudo-divided structure, wherein the convex side of the pseudo-divided structure is a circular structure, and the plane of the pseudo-divided structure is an elliptical structure, wherein the radius of the circular structure is equal to the radius of the minor axis of the ellipse, and the radius of the major axis of the ellipse is 1.5 times the radius of the minor axis of the ellipse.
8. The method of claim 7, wherein in step S3, the raised side of the "÷" shaped structure of the side-by-side spinneret is the functional polyester chip melt component, and the plane of the "÷" shaped structure of the side-by-side spinneret is the polyamide chip melt component.
9. The method of claim 7, wherein in step S3, the fiber has an elastic recovery of 90-94%, and an elastic recovery of 0.01-0.02 cN/dtex when stretched 150%.
10. use of a functional fiber for reducing fat, characterized in that the functional fiber for reducing fat prepared according to any one of claims 1 to 9 is used in a cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845322.9A CN110565205B (en) | 2019-09-08 | 2019-09-08 | Preparation method and application of fat-reducing functional fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845322.9A CN110565205B (en) | 2019-09-08 | 2019-09-08 | Preparation method and application of fat-reducing functional fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110565205A true CN110565205A (en) | 2019-12-13 |
| CN110565205B CN110565205B (en) | 2022-03-15 |
Family
ID=68778489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910845322.9A Active CN110565205B (en) | 2019-09-08 | 2019-09-08 | Preparation method and application of fat-reducing functional fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110565205B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965138A (en) * | 2019-12-31 | 2020-04-07 | 深圳市宏翔新材料发展有限公司 | Profiled fiber and preparation method thereof |
| CN110983572A (en) * | 2019-12-31 | 2020-04-10 | 深圳市宏翔新材料发展有限公司 | Preparation method of seersucker |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004218156A (en) * | 2003-01-16 | 2004-08-05 | Teijin Ltd | Latently crimpable polyester conjugate fiber |
| CN106350891A (en) * | 2016-08-24 | 2017-01-25 | 福建省百凯经编实业有限公司 | Far-infrared healthcare tricot lace fabric and processing method thereof |
| US9725647B1 (en) * | 2016-10-10 | 2017-08-08 | Techid Limited | Anti-counterfeiting yarn and preparation method thereof |
| CN107502969A (en) * | 2017-09-26 | 2017-12-22 | 成都新柯力化工科技有限公司 | A kind of textile fabric and preparation method with self-cleaning function |
| CN107574499A (en) * | 2016-07-05 | 2018-01-12 | 江苏德赛化纤有限公司 | The thick denier Three-dimensional crimped hollow polyester staple fibers of 25D |
| CN108411492A (en) * | 2018-03-08 | 2018-08-17 | 南通大学 | A kind of preparation method of X, gamma-rays protection non-woven fabrics |
-
2019
- 2019-09-08 CN CN201910845322.9A patent/CN110565205B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004218156A (en) * | 2003-01-16 | 2004-08-05 | Teijin Ltd | Latently crimpable polyester conjugate fiber |
| CN107574499A (en) * | 2016-07-05 | 2018-01-12 | 江苏德赛化纤有限公司 | The thick denier Three-dimensional crimped hollow polyester staple fibers of 25D |
| CN106350891A (en) * | 2016-08-24 | 2017-01-25 | 福建省百凯经编实业有限公司 | Far-infrared healthcare tricot lace fabric and processing method thereof |
| US9725647B1 (en) * | 2016-10-10 | 2017-08-08 | Techid Limited | Anti-counterfeiting yarn and preparation method thereof |
| CN107502969A (en) * | 2017-09-26 | 2017-12-22 | 成都新柯力化工科技有限公司 | A kind of textile fabric and preparation method with self-cleaning function |
| CN108411492A (en) * | 2018-03-08 | 2018-08-17 | 南通大学 | A kind of preparation method of X, gamma-rays protection non-woven fabrics |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965138A (en) * | 2019-12-31 | 2020-04-07 | 深圳市宏翔新材料发展有限公司 | Profiled fiber and preparation method thereof |
| CN110983572A (en) * | 2019-12-31 | 2020-04-10 | 深圳市宏翔新材料发展有限公司 | Preparation method of seersucker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110565205B (en) | 2022-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110565205B (en) | Preparation method and application of fat-reducing functional fiber | |
| CN107287682B (en) | Graphene-containing stone needle composite fiber and preparation method and application thereof | |
| CN109705319B (en) | Functional polyester production method and system and functional polyester fiber | |
| CN102877153B (en) | Negative ion cool lining and method for preparing same | |
| CN114525595B (en) | Rare earth-based thermal composite fiber and preparation method and application thereof | |
| KR100297473B1 (en) | Non-woven fabric emitting far infrared rays and its manufacturing method | |
| CN101787586A (en) | Sea-island ultrafine fiber, polyurethane leather and base fabric thereof and preparation method | |
| CN109112688A (en) | A kind of UV resistance and absorbing fast-drying yarn and its production technology and application | |
| CN110257951B (en) | Preparation method of nano-functionalized moisture-absorbing sweat-releasing antibacterial fiber | |
| CN101311390A (en) | Production process of bamboo charcoal polyester fibres | |
| CN102337603A (en) | Fiber with function of infrared ray absorption, and its preparation method and textile | |
| CN105040139A (en) | Anti-ultraviolet acrylic fiber and preparation method thereof | |
| CN107723831B (en) | Dope-dyed polyester fiber and preparation method thereof | |
| CN113265769B (en) | High-quality electric cotton non-woven fabric material and preparation method thereof | |
| CN109706546A (en) | A kind of graphene sea-island fibre and its manufacturing method | |
| CN107898556A (en) | Magnetic far-infrared negative-ion energy eye-mask | |
| CN102409427A (en) | Preparation method for polyester fiber with composite ultraviolet, static electricity and pilling resisting functions | |
| CN105624821B (en) | A kind of barium sulfate/polyvinyl alcohol composite fiber and preparation method thereof, non-woven cloth | |
| CN102877154B (en) | Method for preparing organic pigment microcapsule polyester color yarn | |
| CN108018613B (en) | Preparation method of photo-sterilization, self-cleaning and far-infrared composite nano particles and multifunctional fibers thereof | |
| CN113564741A (en) | Far infrared functional powder, far infrared fiber and preparation method and application thereof | |
| CN108221179B (en) | Preparation method of moisture-absorbing and heat-emitting antibacterial yarn | |
| CN110591067B (en) | Preparation method and application of polyester chip with fat-reducing function | |
| CN110565199A (en) | Preparation method and application of fiber with warm-keeping and bacteriostatic functions | |
| JP3381742B2 (en) | Absorbing thermal storage far-infrared emitting fiber and method for producing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Preparation method and application of a fat reducing functional fiber Effective date of registration: 20231018 Granted publication date: 20220315 Pledgee: Zhongshan branch of Dongguan Bank Co.,Ltd. Pledgor: DEANFUN UNDERWEAR Co.,Ltd. Registration number: Y2023980061702 |