CN114657666A - Light-absorbing and heating yarn and fabric prepared from same - Google Patents
Light-absorbing and heating yarn and fabric prepared from same Download PDFInfo
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- CN114657666A CN114657666A CN202210353044.7A CN202210353044A CN114657666A CN 114657666 A CN114657666 A CN 114657666A CN 202210353044 A CN202210353044 A CN 202210353044A CN 114657666 A CN114657666 A CN 114657666A
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- 239000004744 fabric Substances 0.000 title claims abstract description 128
- 238000010438 heat treatment Methods 0.000 title claims abstract description 64
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 101
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 95
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 94
- 229920000728 polyester Polymers 0.000 claims abstract description 27
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- 238000002156 mixing Methods 0.000 claims abstract description 21
- 238000009987 spinning Methods 0.000 claims abstract description 21
- 238000002074 melt spinning Methods 0.000 claims abstract description 15
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 10
- 238000005338 heat storage Methods 0.000 claims abstract description 8
- 241000222122 Candida albicans Species 0.000 claims abstract description 5
- 241000588724 Escherichia coli Species 0.000 claims abstract description 5
- 241000191967 Staphylococcus aureus Species 0.000 claims abstract description 5
- 229940095731 candida albicans Drugs 0.000 claims abstract description 5
- 230000031700 light absorption Effects 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 13
- 238000002791 soaking Methods 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 12
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- 238000002360 preparation method Methods 0.000 claims description 10
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- 238000009941 weaving Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000002310 reflectometry Methods 0.000 claims description 9
- 238000009991 scouring Methods 0.000 claims description 8
- HJVAFZMYQQSPHF-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanol;boric acid Chemical compound OB(O)O.OCCN(CCO)CCO HJVAFZMYQQSPHF-UHFFFAOYSA-N 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
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- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002071 nanotube Substances 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 4
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 3
- 238000000498 ball milling Methods 0.000 claims description 3
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- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- 230000005764 inhibitory process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 19
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- 238000012360 testing method Methods 0.000 description 14
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- 239000000523 sample Substances 0.000 description 9
- 238000009940 knitting Methods 0.000 description 7
- 229920000742 Cotton Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000002759 woven fabric Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 3
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- 244000005700 microbiome Species 0.000 description 3
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- 210000001519 tissue Anatomy 0.000 description 3
- 229920000433 Lyocell Polymers 0.000 description 2
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- 230000000052 comparative effect Effects 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 208000006820 Arthralgia Diseases 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 238000001237 Raman spectrum Methods 0.000 description 1
- GWBWGPRZOYDADH-UHFFFAOYSA-N [C].[Na] Chemical compound [C].[Na] GWBWGPRZOYDADH-UHFFFAOYSA-N 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003738 black carbon Substances 0.000 description 1
- 239000002238 carbon nanotube film Substances 0.000 description 1
- 210000002390 cell membrane structure Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
-
- 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
-
- 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
- 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
- D01F6/92—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 polyesters
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
- D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/449—Yarns or threads with antibacterial properties
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/52—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads thermal insulating, e.g. heating or cooling
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/54—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads coloured
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/22—Physical properties protective against sunlight or UV radiation
Abstract
The invention discloses light-absorbing and heating yarn, which comprises carbon nano tubes and polyester, wherein the content of the carbon nano tubes is 0.1-5 wt%, and the balance is the polyester; the yarn is a filament yarn obtained by melt spinning, a spun yarn obtained by spinning a cut filament yarn obtained by melt spinning and then spinning a cut staple fiber, or a blended yarn obtained by blending a cut filament yarn obtained by melt spinning and another fiber. The light-absorbing heating fabric has a unique light-absorbing heating effect and light and heat storage performance. Has reflection effect on far infrared rays, and can prevent the escape of heat of a human body. The fabric added with the carbon nano tubes has a durable antibacterial function, and the bacteriostatic rate of the fabric on staphylococcus aureus, escherichia coli and candida albicans is over 85 percent after the fabric is washed for 50 times by a common family.
Description
Technical Field
The invention relates to the technical field of light-absorbing heating yarns, in particular to a light-absorbing heating yarn and a fabric prepared from the same.
Background
China is wide in territory, the climate difference between the south and the north is large, the temperature of the north is low, the temperature of the three provinces in the northeast can often reach more than thirty degrees centigrade below zero, although the temperature of the south is relatively high, the severe cold can be brought to people due to heavy moisture, the human health can be greatly damaged due to the cold, the activities of people are limited, and the life becomes inconvenient. In particular, some people who need outdoor activities, such as: outdoor workers such as cleaners, builders, takemen, couriers, mappers and the like are very easily infected with wind cold due to the fact that the bodies of the workers are in a low-temperature environment for a long time and heat preservation measures are not in place, and therefore symptoms such as cough, pneumonia, cardiovascular diseases, heart and lung function failure and the like are caused, and even death is caused finally. The clothes have higher requirements on the warmth retention degree of clothes, and more diseases accompanied by arthralgia and other sequelae caused by cold catching of bodies of special people such as juveniles and old people are caused. For young people, the clothes are expected to be fashionable, not bulky and warm in cold winter.
In view of the above, new requirements are required for the warmth retention property of the garment fabric, and research and development of the fabric are continuously ongoing. Such as: as disclosed in the carbon nanotube heating fabric of publication No. CN 111615862a and the method for manufacturing the same, a carbon nanotube film is obtained from a carbon nanotube array and twisted to make carbon nanotube fibers, and a predetermined number of carbon nanotube fibers are combined into carbon nanotube fiber bundles; the carbon nanotube fiber bundles are used for forming a fabric, the carbon nanotube heating fabric is electrified through the two opposite conductive side edges, the temperature of the fabric can be instantly raised, the temperature of the fabric is stable, however, when the heating fabric is used, a charger needs to be carried with a user, the load of the body is increased, and the situation that the user cannot keep warm after the power supply is urgent at any time is worried about. And the following steps: in the multifunctional heating fabric disclosed in publication No. CN 214938153U, the carbon nanotube yarn and the cotton yarn are proportioned to make warp yarns, the carbon nanotube yarn and the flame-retardant acrylic fibers are proportioned to make weft yarns, the technical scheme and the test effect are shown in the specification [ 0017 ], and the heating function can be achieved after the combination is electrified. The invention also increases the load of the body and can not keep warm after the power supply is emergency.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a light-absorbing and heat-emitting yarn and a fabric prepared from the same, so as to solve the problems in the background art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides light-absorbing and heating yarn, which comprises carbon nano tubes and polyester, wherein the content of the carbon nano tubes is 0.1-5 wt%, and the balance is the polyester;
the yarn is a filament yarn obtained by melt spinning, a spun yarn obtained by spinning a cut filament yarn obtained by melt spinning and then spinning a cut staple fiber, or a blended yarn obtained by blending a cut filament yarn obtained by melt spinning and another fiber.
As one of means for improving the warmth retention of the fabric, yarns with high moisture absorption and heat generation properties are generally used and are matched with the texture design of the fabric; or some charged and heated yarns are used, and the heat retention property of the fabric is improved by utilizing external energy; or ceramic particles with far infrared emission function are added in the yarns to prevent the heat loss of the human body. The invention achieves the effect of keeping warm of the fabric by utilizing the effect of directly converting natural light absorbed by the carbon nano tubes into heat energy, wherein the content of the carbon nano tubes in the yarn is between 0.1 and 5 weight percent. As the content of the carbon nanotube increases, the formability of the fiber or filament deteriorates, and the tensile strength of the fiber or filament decreases rapidly until spinning cannot be performed; and the content of the carbon nano tubes is reduced due to the increase of the polyester component, so that various effects of the fabric are poor, even no effect is achieved. That is, the yarn contains polyester component besides carbon nanotube component, and the content of the carbon nanotube is 0.1 wt% -5 wt%.
Preferably, the length of the carbon nanotube is 20-100 micrometers, and the diameter of the carbon nanotube is less than 6 nanometers. The carbon nano tube acts on the outer wall of the microorganism through puncture, so that the cell wall and cell membrane structures of the microorganism are damaged, cytoplasm is released, the microorganism is killed, and the fabric has durable antibacterial performance.
The titer of the filament is 33dtex to 550dtex, and the staple fiber yarn is 32s to 80 s. The content of the fiber in the blended yarn with other fibers is not less than 30%. The light-absorbing heating yarn is added with black carbon nano tubes, so that the yarn is formed into matte black, and the color of the spun yarn is gradually lightened along with the increase of the proportion of other yarns until the yarn becomes gray.
According to the use occasions of the fabric, the filament yarn or the short fiber yarn is selected to be used, for example, the fabric used for the down jacket fabric requires high down resistance, and a high-density woven fabric is mostly adopted. To achieve the weavability of a highly dense woven fabric, filaments are often selected for fabric design. For example, in order to obtain a good napping effect and ensure the strength of the fabric, filaments are often used in a single-sided napping fabric. For another example, the fabric is used for bedding (four-piece set) or thermal underwear, and the spun yarn with light absorption and heating can be selected for better hand feeling or skin-friendly feeling; or blended yarn obtained by blending with one or more cellulose fibers such as cotton, viscose, lyocell, tencel and the like.
The invention also provides a fabric prepared from the light-absorbing and heating yarn, and the specific preparation method of the fabric comprises the following steps:
s1, grinding, ball-milling and ultrasonically processing the synthesized nanotube material to obtain nano-scale carbon nanotube powder with the carbon nanotube length of 20-100 microns and the diameter of less than 6 nanometers;
s2, grinding the carbon nano tube powder and the polyester chip according to the weight ratio of 1: 10-1: 3, fully mixing, melting, extruding by using a screw extruder, and granulating to obtain carbon nanotube master batches; wherein the blending temperature is 270-280 ℃, and the screw rotating speed is 120-160 rpm;
s3, mixing the obtained carbon nano tube master batch with the polyester chip according to the weight ratio of 1: 99-1: 10 is added into polyester for melt spinning; producing according to a common polyester chip spinning production process and flow, controlling the supply of a spinning metering pump to be 700-850 g/min, the spinning temperature to be 285-300 ℃, the spinning speed to be 850-1000 m/min and the drafting multiple to be 2.0-3.0 times, and preparing carbon nano tube polyester undrawn yarns or filaments;
s4, false twisting the obtained carbon nano tube undrawn yarn to obtain carbon nano tube low-elasticity false-twisted yarn;
s5, weaving the carbon nano tube low-elasticity false-twist yarn to obtain grey cloth;
s6, scouring the obtained grey cloth, wherein the scouring agent is 2g/L and the caustic soda is 0.6 g/L;
s7, determining whether the fabric needs intermediate sizing or dyeing according to the characteristics of the processed fabric;
and S8, performing functional finishing on the refined or dyed fabric as required to obtain a finished product.
Preferably, the average reflectivity of the light absorption and heat generation fabric to the ultraviolet and visible light regions is 0.5-30%, and the average transmittance to the ultraviolet and visible light regions is less than 1%. The carbon nano tube has an absorption effect on full-spectrum light, particularly has obvious effects on the reflectivity and the transmittance of ultraviolet and visible light, and the light absorption heating yarn absorbs the full-spectrum light. The light absorption heating fabric is affected by the weaving tightness and gaps caused by the tissues, and although the full spectrum cannot be absorbed, the light absorption heating fabric has low transmittance. And blending with different fibers or blending with other yarns can improve the reflectivity of the fabric. Preferably, the average reflectivity of the light absorption heating fabric to ultraviolet and visible light regions is 0.5-10%, the absorption of the fabric to light is increased, and the light absorption heating effect is better.
Preferably, the temperature rise value of the fabric after light absorption and heating is 5-30 ℃.
Preferably, the temperature rise value of the fabric after light absorption and heating is 10-25 ℃.
Preferably, the maximum temperature rise value of the light and heat storage performance of the fabric measured by GB/T18319-2019 is 5-20 ℃.
The higher the cover coefficient of the fabric is, the more compact the fabric cover is, and the better the quality is. In the invention, the covering coefficient of the woven fabric is preferably 2200-2800. When the covering coefficient of the fabric is less than 2200, particularly the down jacket fabric is easy to have the problem of down running, and the quality of the fabric is reduced. On the contrary, when the cover factor of the fabric is larger than 2800, the weaving difficulty is increased, and the hand feeling of the fabric also tends to be hard.
Preferably, the fabric prepared by using the light absorption heating yarn has the advantages that the temperature rise value after light absorption heating is 5-30 ℃, the maximum temperature rise value of the light heat storage performance of the fabric is 5-20 ℃, and the antibacterial effect of the fabric measured by using a GB/T20944.3-2008 oscillation method has the effect that the antibacterial rate of 50 recycled materials after washing in ordinary families to staphylococcus aureus, escherichia coli and candida albicans is more than 85%.
Preferably, the carbon nanotubes are further treated by a modifying solution; the specific treatment method comprises the following steps: soaking the carbon nano tube, then sending the carbon nano tube into 2-3 times of modification liquid for ultrasonic dispersion, and washing and drying the carbon nano tube after the treatment to obtain the modified carbon nano tube; the preparation method of the modified liquid comprises the following steps: stirring and fully mixing 5-9 parts of sodium dodecyl sulfate, 1-5 parts of silane coupling agent KH570, 1-3 parts of triethanolamine borate, 10-20 parts of ethanol and 1-3 parts of hydrochloric acid to obtain a modified solution.
After the carbon nano tube is treated by the modifying solution, the activity is enhanced, the dispersing power is improved, and the comprehensive performance of the carbon nano tube in a re-product is improved by matching with soaking treatment.
Preferably, the soaking treatment is carried out by reducing the temperature to 150-170 ℃ at the speed of 1-3 ℃/min, preserving the heat for 5-10min, then continuously increasing the temperature to 215 ℃ at the speed of 1 ℃/min, preserving the heat for 20min, and finally air-cooling to room temperature.
Preferably, the power of the ultrasonic dispersion is 100-500W, and the ultrasonic time is 20-30 min.
Compared with the prior art, the invention has the following beneficial effects:
the light absorption heating fabric has a unique light absorption heating effect and has light and heat storage performance. Has reflection effect on far infrared rays, and can prevent the escape of human body heat. The fabric added with the carbon nano tubes has a durable antibacterial function, and the bacteriostatic rate of the fabric on staphylococcus aureus, escherichia coli and candida albicans is over 85 percent after the fabric is washed for 50 times by a common family.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The light-absorbing and heat-emitting yarn comprises carbon nanotubes and polyester, wherein the content of the carbon nanotubes is 0.1-5 wt%, and the balance is the polyester;
the yarn is a filament yarn obtained by melt spinning, a spun yarn obtained by spinning a cut filament yarn obtained by melt spinning and then spinning a cut staple fiber, or a blended yarn obtained by blending a cut filament yarn obtained by melt spinning and another fiber.
The carbon nanotube of the present embodiment has a length of 20 to 100 μm and a diameter of 6 nm or less.
The fabric prepared from the light-absorbing and heating yarn provided by the embodiment comprises the following specific preparation method:
s1, grinding, ball-milling and ultrasonically processing the synthesized nanotube material to obtain nano-scale carbon nanotube powder with the carbon nanotube length of 20-100 microns and the diameter of less than 6 nanometers;
s2, grinding the carbon nano tube powder and the polyester chip according to the weight ratio of 1: 10-1: 3, fully mixing, melting, extruding by using a screw extruder, and granulating to obtain carbon nanotube master batches; wherein the blending temperature is 270-280 ℃, and the screw rotating speed is 120-160 rpm;
s3, mixing the obtained carbon nano tube master batch with the polyester chip according to the weight ratio of 1: 99-1: 10 is added into polyester for melt spinning; producing according to a common polyester chip spinning production process and flow, controlling the supply of a spinning metering pump to be 700-850 g/min, the spinning temperature to be 285-300 ℃, the spinning speed to be 850-1000 m/min and the drafting multiple to be 2.0-3.0 times, and preparing carbon nano tube polyester undrawn yarns or filaments;
s4, false twisting the obtained carbon nano tube undrawn yarn to obtain carbon nano tube low-elasticity false-twisted yarn;
s5, weaving the carbon nano tube low-elasticity false-twist yarn to obtain grey cloth;
s6, scouring the obtained grey cloth, wherein the scouring agent is 2g/L and the caustic soda is 0.6 g/L;
s7, determining whether the fabric needs intermediate sizing or dyeing according to the characteristics of the processed fabric;
and S8, functionally finishing the refined or dyed fabric according to requirements to obtain a finished product.
The light-absorbing and heat-generating fabric of the present example had an average reflectance in the ultraviolet and visible light regions of 0.5 to 30% and an average transmittance in the ultraviolet and visible light regions of 1% or less.
The temperature rise value of the fabric after light absorption and heating is 5-30 ℃.
The temperature rise value of the fabric of the embodiment after light absorption and heat emission is 17.5 ℃.
The maximum temperature rise value of the light and heat storage performance of the fabric of the embodiment measured by GB/T18319-2019 is 5-20 ℃.
The result of the antibacterial effect of the fabric of the embodiment measured by the GB/T20944.3-2008 oscillation method is that the inhibition rate of the fabric on staphylococcus aureus, escherichia coli and candida albicans is above 85% after the fabric is washed for 50 times in a common household.
The carbon nano tube is also treated by the modifying solution; the specific treatment method comprises the following steps: soaking the carbon nano tube, then sending the carbon nano tube into 2-3 times of modification liquid for ultrasonic dispersion, and washing and drying the carbon nano tube after the treatment to obtain the modified carbon nano tube; the preparation method of the modified liquid comprises the following steps: stirring and fully mixing 5-9 parts of sodium dodecyl sulfate, 1-5 parts of silane coupling agent KH570, 1-3 parts of triethanolamine borate, 10-20 parts of ethanol and 1-3 parts of hydrochloric acid to obtain a modified solution.
The soaking treatment adopts the speed of 1-3 ℃/min to reduce the temperature to 150 ℃ and 170 ℃, the temperature is kept for 5-10min, then the temperature is continuously increased to 215 ℃ at the speed of 1 ℃/min, the temperature is kept for 20min, and finally the air cooling is carried out to the room temperature.
The power of ultrasonic dispersion is 100-500W, and the ultrasonic time is 20-30 min.
Example 1
On an air jet loom, 84dtex-72 f-light absorption heating yarns are selected as warp yarns, 84dtex-72 f-light absorption heating yarns are selected as weft yarns, plain weave is adopted, the warp and weft density is 156 × 136 pieces/inch, weaving is carried out to obtain gray fabric, then refining, drying, padding water-absorbing resin (8g/L) are carried out, and finally shaping is carried out at 170 ℃ to obtain the light absorption heating woven fabric. See table 1 for details.
Wherein, the length of the carbon nanotube of the light absorption heating yarn is 50 micrometers, and the diameter is less than 6 nanometers.
The carbon nano tube is also treated by the modifying solution; the specific treatment method comprises the following steps: soaking the carbon nano tube, then sending the carbon nano tube into 2 times of modification liquid for ultrasonic dispersion, and washing and drying the carbon nano tube after the treatment to obtain the modified carbon nano tube; the preparation method of the modified liquid comprises the following steps: 5 parts of sodium dodecyl sulfate, 1 part of silane coupling agent KH570, 1 part of triethanolamine borate, 10 parts of ethanol and 1 part of hydrochloric acid are stirred and mixed fully to obtain a modified solution.
Soaking treatment is carried out by decreasing the temperature to 150 deg.C at a rate of 1 deg.C/min, maintaining the temperature for 5min, then increasing the temperature to 215 deg.C at a rate of 1 deg.C/min, maintaining the temperature for 20min, and finally air cooling to room temperature.
The power of ultrasonic dispersion is 100W, and the ultrasonic time is 20 min.
Example 2
On an air jet loom, 50s of light-absorbing and heating yarns are selected as warp yarns, 40s of light-absorbing and heating yarns are selected as weft yarns, twill weave is carried out, the warp and weft density is 184 x 102 pieces/inch, gray fabric is obtained through weaving, and then the light-absorbing and heating woven fabric is obtained through scouring, drying and finally setting at the temperature of 170 ℃. See table 1 for details.
Wherein, the length of the carbon nanotube of the light absorption heating yarn is 80 microns, and the diameter is below 6 nanometers.
The carbon nano tube is also treated by the modifying solution; the specific treatment method comprises the following steps: soaking the carbon nano tube, then sending the carbon nano tube into 3 times of modification liquid for ultrasonic dispersion, and washing and drying the carbon nano tube after the treatment is finished to obtain a modified carbon nano tube; the preparation method of the modified liquid comprises the following steps: stirring and mixing 9 parts of sodium dodecyl sulfate, 5 parts of silane coupling agent KH570, 3 parts of triethanolamine borate, 20 parts of ethanol and 3 parts of hydrochloric acid sufficiently to obtain a modified solution.
The soaking treatment adopts the speed of 3 ℃/min to reduce the temperature to 170 ℃, the temperature is preserved for 10min, then the temperature is continuously raised to 215 ℃ at the speed of 1 ℃/min, the temperature is preserved for 20min, and finally, the air cooling is carried out to the room temperature.
The power of ultrasonic dispersion is 500W, and the ultrasonic time is 30 min.
Example 3
The light absorbing and heating woven fabric of the present invention was obtained in the same manner as in example 2 except that the yarn was changed to 50s light absorbing and heating yarn as warp, and 50% 40s light absorbing and heating fiber and 50% viscose fiber as weft. See table 1 for details.
Wherein, the length of the carbon nanotube of the light absorption heating yarn is 65 micrometers, and the diameter is less than 6 nanometers.
The carbon nano tube is also treated by the modifying solution; the specific treatment method comprises the following steps: soaking the carbon nano tube, then sending the carbon nano tube into 2.5 times of modification liquid for ultrasonic dispersion, and washing and drying the carbon nano tube after the treatment to obtain the modified carbon nano tube; the preparation method of the modified liquid comprises the following steps: stirring and mixing 7 parts of sodium dodecyl sulfate, 3 parts of silane coupling agent KH570, 2 parts of triethanolamine borate, 15 parts of ethanol and 2 parts of hydrochloric acid sufficiently to obtain a modified solution.
The soaking treatment adopts 2 ℃/min speed to reduce the temperature to 160 ℃, the heat preservation is carried out for 7.5min, then the temperature is continuously increased to 215 ℃ at the speed of 1 ℃/min, the heat preservation is carried out for 20min, and finally, the air cooling is carried out to the room temperature.
The power of ultrasonic dispersion is 300W, and the ultrasonic time is 25 min.
Example 4
On a 28-needle double-sided circular knitting machine, 84dtex-72 f-light-absorbing heating yarns are selected as knitting yarns, cotton and wool tissues are selected for knitting to obtain gray fabric, and then the gray fabric is refined, dried, padded with water-absorbing resin (8g/L) and finally shaped at the temperature of 170 ℃ to obtain the light-absorbing heating double-sided knitted fabric. See table 1 for details.
Wherein, the length of the carbon nanotube of the light absorption heating yarn is 50-80 micrometers, and the diameter is below 6 nanometers.
Example 5
On a 24-needle single-side terry machine, 40s cotton yarn and 30D spandex are selected as surface yarn, 110dtex-72 f-light absorption heating yarn is selected as inner yarn, weaving is carried out to obtain gray fabric, then scouring and drying are carried out, water absorption resin (8g/L) is padded, and finally setting is carried out at 170 ℃ to obtain the light absorption heating double-side knitted fabric. See table 1 for details.
Wherein, the length of the carbon nanotube of the light absorption heating yarn is 50-80 microns, and the diameter is below 6 nanometers.
Example 6
On a three-thread sweater with 20 needles, 40s cotton yarn is selected as surface yarn, 84dtex-72 f-light absorption heating yarn is selected as connecting yarn, two 110dtex-72 f-light absorption heating yarns are selected as lining yarn, weaving is carried out to obtain gray fabric, the gray fabric is refined, dried, padded with water absorption resin (8g/L), and finally shaped at 170 ℃, and then cut pile and fluffed to obtain the light absorption heating napping knitted fabric. See table 1 for details.
Wherein, the length of the carbon nanotube of the light absorption heating yarn is 50-80 microns, and the diameter is below 6 nanometers.
Example 7
On a 28-needle double-sided circular knitting machine, 84dtex-72 f-light absorption heating yarn and 20D spandex are selected as surface yarn and inner yarn, 150dtex-72 f-light absorption heating yarn is selected as connecting yarn to be knitted to obtain grey cloth, and the grey cloth is subjected to refining, drying, padding with water-absorbent resin (8g/L) and finally shaping at 170 ℃ to obtain the light absorption heating napping knitted fabric. See table 1 for details.
Wherein, the length of the carbon nanotube of the light absorption heating yarn is 50-80 microns, and the diameter is below 6 nanometers.
Comparative example 1
On a 28-needle double-sided circular knitting machine, 84dtex-72 f-polyester low-elasticity twisted yarn is selected as knitting yarn, cotton and wool tissue is selected for knitting to obtain gray fabric, and then the gray fabric is refined, dried, padded with water-absorbent resin (8g/L) and finally shaped at 170 ℃ to obtain the light-absorbing and heating double-sided knitted fabric.
The test method of each parameter related in the invention is as follows:
(1) assay for carbon nanotubes
A sample piece with the size of 100mm multiplied by 100mm is cut and analyzed by infrared, Raman spectrum and SEM-EDS to obtain whether the fabric contains the carbon nano tube or not.
Determination of content of carbon nanotube
After the fact that the fabric contains the carbon sodium nanotubes is determined, the content of the carbon nanotubes is calculated by referring to GB/T34916-.
(3) Reflectivity of fabric
A sample piece with the size of 60mm multiplied by 60mm is cut, an ultraviolet-visible spectrophotometer UV-2450 is used, ultraviolet and visible regions with the measuring wave band of 280-800 nm are selected, the testing mode is reflection, and the testing condition with the data interval of 5nm is used for testing the reflectivity of the fabric. And taking the average value of the all-band reflectivity as the average reflectivity of the fabric.
Transmittance of fabric
A60 mm multiplied by 60mm sample piece is cut, an ultraviolet-visible spectrophotometer UV-2450 is used, ultraviolet and visible regions with the measuring wave band of 280-800 nm are selected, the transmittance of the fabric is tested by using a testing condition with the testing mode of transmittance and the data interval of 5 nm. And taking the average value of the all-band transmittance as the average transmittance of the fabric.
(5) Coefficient of coverage
Coverage factor (Pj (Tj)1/2+ Pw (Tw)1/2)/K
Pj, Pw: warp and weft yarn density (root/inch)
Tj, Tw: fineness of warp and weft (dtex)
K: fabric weave correction factor
(plain K-1; 2/1 twill K-1.2; 3/1 twill, 2/2 squareness K-1.3; 4/1 satin K-1.4).
(6) Light-absorbing and heating property of fabric
Each sample is cut into a whole fabric with the width of more than 0.5m at least, each combined experiment is composed of two prepared solid samples with the size of 60mm multiplied by 100mm, the reverse surfaces of the samples are attached to each other, and a bag-shaped insertion opening is sewn along three sides to form a combined sample. The stitching thread should be parallel to the length or width direction of the fabric. The comparison sample refers to the fabric woven by the common yarns with the same specification and the same weaving method. The rated power of the irradiation light source is 500W. The test pieces were subjected to humidity control of the samples for at least 4 hours under an environment of temperature (20. + -. 2 ℃ C.) and relative humidity (65. + -. 4)% as prescribed in GB/T6529. The distance between the light source and the test piece is (50 +/-1) cm, the temperature recorder is connected, and data acquisition is set to record at least once every 8 seconds. After the glove is worn, the temperature sensors are respectively inserted into the test sample and the comparison sample. And (5) starting a light source for testing, wherein the testing time is 20 min. The positions of the test sample and the reference sample are tested once more. The maximum value of the temperature is selected as the heating value of the light absorption and heating of the fabric.
(7) Light heat storage performance
The test was performed according to GB/T18319 and 2019.
(8) Antibacterial effect
The test was carried out according to GB/T20944.3-2008 oscillation method.
(9) Ordinary household washing
The washing experiments were carried out according to the washing method of a domestic double-drum washing machine specified in GB/T20944.3-2008.
See table 1 for details.
According to Table 1
As can be seen from example 3 and comparative example 1, in the same conditions, when the light-absorbing and heat-generating yarn is used in comparison with the fabric woven and processed by the common polyester yarn in the same weave, the light-absorbing and heat-generating value, the light-heat-storing performance and the antibacterial property of the former are much higher than those of the latter, and the light-absorbing and heat-generating effect and other performances are obviously better than those of the latter.
As is clear from example 2 and example 3, in the same conditions, the light absorption heating value, the light heat storage performance and the antibacterial property of the pure light absorption heating yarn are higher than those of the fabric woven by the mixed yarn and the same structure with the fiber of other materials, and the light absorption heating effect and other performances are obviously better than those of the fabric woven by the mixed yarn and the same structure with the fiber of other materials.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The light-absorbing and heating yarn is characterized by comprising 0.1-5 wt% of carbon nanotubes and polyester, wherein the balance is polyester;
the yarn is a filament yarn obtained by melt spinning, a spun yarn obtained by spinning a cut filament yarn obtained by melt spinning and then spinning a cut staple fiber, or a blended yarn obtained by blending a cut filament yarn obtained by melt spinning and another fiber.
2. A light-absorbing and heat-emitting yarn as claimed in claim 1, wherein the carbon nanotubes have a length of 20 to 100 μm and a diameter of less than 6 nm.
3. A fabric made of light-absorbing and heat-emitting yarns according to claim 2, wherein the average reflectivity of the light-absorbing and heat-emitting fabric in an ultraviolet and visible light region is 0.5-30%, and the average transmittance of the light-absorbing and heat-emitting fabric in the ultraviolet and visible light region is less than 1%.
4. A preparation method of light-absorbing and heating yarn and fabric thereof is characterized in that the specific preparation method of the yarn or the fabric is as follows:
s1, grinding, ball-milling and ultrasonic processing the synthesized nanotube material to obtain nano-scale carbon nanotube powder with the carbon nanotube length of 20-100 micrometers and the diameter of less than 6 nanometers;
s2, grinding the carbon nano tube powder and the polyester chip according to the weight ratio of 1: 10-1: 3, fully mixing, melting, extruding by using a screw extruder, and granulating to obtain carbon nanotube master batches; wherein the blending temperature is 270-280 ℃, and the screw rotating speed is 120-160 rpm;
s3, mixing the obtained carbon nano tube master batch with the polyester chip according to the weight ratio of 1: 99-1: 10 is added into polyester for melt spinning; producing according to a common polyester chip spinning production process and flow, controlling the supply of a spinning metering pump to be 700-850 g/min, the spinning temperature to be 285-300 ℃, the spinning speed to be 850-1000 m/min and the drafting multiple to be 2.0-3.0 times, and preparing carbon nano tube polyester undrawn yarns or filaments;
s4, false twisting the obtained carbon nano tube undrawn yarn to obtain carbon nano tube low-elasticity false twisted yarn;
s5, weaving the carbon nano tube low-elasticity false-twist yarn to obtain grey cloth;
s6, scouring the obtained grey cloth, wherein the scouring agent is 2g/L and the caustic soda is 0.6 g/L;
s7, determining whether the fabric needs intermediate sizing or dyeing according to the characteristics of the processed fabric;
and S8, performing functional finishing on the refined or dyed fabric as required to obtain a finished product.
5. A fabric made of light-absorbing and heat-emitting yarns according to claim 3, wherein the temperature rise value of the fabric after light absorption and heat emission is 5-30 ℃.
6. A fabric prepared from the light-absorbing and heat-emitting yarn as claimed in claim 5, wherein the maximum temperature rise value of the light-heat storage performance of the fabric measured by GB/T18319-2019 is 5-20 ℃.
7. The fabric prepared from the light-absorbing and heat-emitting yarn according to claim 5, wherein the antibacterial effect of the fabric measured by the GB/T20944.3-2008 oscillation method is that the inhibition rate of the fabric on staphylococcus aureus, escherichia coli and candida albicans is more than 85% after the fabric is washed for 50 times in a common family.
8. The fabric made of the light-absorbing and heat-emitting yarn according to claim 1, wherein the carbon nanotubes are further treated by a modifying solution; the specific treatment method comprises the following steps: soaking the carbon nano tube, then sending the carbon nano tube into 2-3 times of modification liquid for ultrasonic dispersion, and washing and drying the carbon nano tube after the treatment to obtain the modified carbon nano tube; the preparation method of the modified liquid comprises the following steps: stirring and fully mixing 5-9 parts of sodium dodecyl sulfate, 1-5 parts of silane coupling agent KH570, 1-3 parts of triethanolamine borate, 10-20 parts of ethanol and 1-3 parts of hydrochloric acid to obtain a modified solution.
9. The light-absorbing and heat-emitting fabric prepared from the yarns according to claim 8, wherein the soaking treatment is carried out by reducing the temperature to 150-170 ℃ at the speed of 1-3 ℃/min, preserving the heat for 5-10min, then continuously increasing the temperature to 215 ℃ at the speed of 1 ℃/min, preserving the heat for 20min, and finally cooling the fabric to room temperature in air.
10. The light-absorbing and heat-emitting yarn fabric as claimed in claim 8, wherein the power of the ultrasonic dispersion is 100-500W, and the ultrasonic time is 20-30 min.
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