CN109112688B - Ultraviolet-proof moisture-absorbing quick-drying yarn and production process and application thereof - Google Patents
Ultraviolet-proof moisture-absorbing quick-drying yarn and production process and application thereof Download PDFInfo
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- CN109112688B CN109112688B CN201810977623.2A CN201810977623A CN109112688B CN 109112688 B CN109112688 B CN 109112688B CN 201810977623 A CN201810977623 A CN 201810977623A CN 109112688 B CN109112688 B CN 109112688B
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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
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- 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
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—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
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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
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
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- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
- Woven Fabrics (AREA)
Abstract
The invention relates to a production process of an anti-ultraviolet and moisture-absorbing quick-drying fabric, which comprises the steps of firstly melting polyester resin and an auxiliary agent thereof, then extruding and cutting into polyester slices, then forming fine denier polyester staple fibers through a spinning process, and then preparing a finished product through a siro spinning and weaving process, an alkali decrement process and the like. The beneficial effects are as follows: according to the ultraviolet-proof moisture-absorbing quick-drying fabric, a large number of micropores and grooves are distributed on the surface of the ultraviolet-proof moisture-absorbing quick-drying fabric, so that the fabric has a strong capillary effect, and sweat can be quickly transferred to the outer grooves through the micropores to form a moisture-absorbing quick-drying effect; the invention adopts the technical scheme that an environment-friendly ultraviolet absorbent, a shielding agent and polyester chips are fused, and the ultraviolet-proof moisture-absorbing quick-drying fabric with high performance is formed through a special spinning process.
Description
Technical Field
The invention belongs to the technical field of textile and clothing, and particularly relates to an ultraviolet-proof moisture-absorbing quick-drying yarn and a production process and application thereof.
Background
The polyester fiber is the most widely applied fiber in China, and has excellent physical properties and chemical properties, such as high breaking strength and elastic modulus, moderate rebound resilience, excellent heat setting, good heat and light resistance, better corrosion resistance, stability to weak acid and alkali and the like. Although the performance of the polyester fiber is excellent, the textile prepared from the polyester fiber still has many defects, mainly including poor moisture absorption, easy pilling, poor ultraviolet resistance, easy generation of static electricity, dirt and dust and the like, so that the application of the polyester fiber is limited in many fields of textiles. In order to solve these problems, domestic and foreign scientists have gradually studied the modification of polyester fibers and produced differentiated fibers with comfort and unique style, which are mainly classified into two types: one is chemical modification, including copolymerization and surface treatment, and the other is physical modification, including blending spinning, altering fiber processing conditions, altering fiber morphology, etc.
With the rapid development of functional textiles, moisture-absorbing and quick-drying fabrics or fibers become increasingly needed, especially for polyester fibers. The traditional concept of hydrophilic finishing of fabrics is based on the introduction of organic compounds containing polar groups on the surface of the fibers to enhance the moisture absorption of the fibers. Due to the high temperature in summer and strong ultraviolet light, the outdoor protection tooling fabric has higher requirements on ultraviolet resistance. The traditional ultraviolet-proof fabric is generally prepared by applying an ultraviolet-proof finishing agent to the fabric in a coating finishing mode, but the fabric finished in the mode has poor ultraviolet durability, hard hand feeling and uncomfortable wearing, and is difficult to meet the requirements of people on textiles.
Disclosure of Invention
In order to solve the problems in the prior art, based on the moisture absorption quick-drying finishing fabric, sweat on the skin can be extracted from the skin at any time, the sweat is transmitted to the surface of the fabric and is quickly evaporated, and the skin keeps dry, comfortable and stuffy feeling-free, the invention provides the ultraviolet-proof moisture absorption quick-drying yarn and the production process and application thereof, the ultraviolet-proof moisture absorption quick-drying yarn adopts an advanced processing process, and the produced fine denier polyester staple fibers are distributed with a large number of micropores and grooves on the surface, and the special physical structure enables the fibers to have extremely strong capillary effect, and sweat can be quickly transmitted to the external grooves through the micropores to form the moisture absorption quick-drying effect; the invention adopts the fusion of the environment-friendly ultraviolet absorbent, the shielding agent and the polyester chip and forms the anti-ultraviolet fine denier short fiber with high performance through a special spinning process.
The invention aims to provide an ultraviolet-proof moisture-absorbing quick-drying yarn.
An ultraviolet resistant and moisture absorbent quick drying yarn according to a specific embodiment of the present invention, the yarn being produced by a process comprising the steps of:
(1) preparation of polyester chip: polyester resin and an auxiliary agent are adopted to prepare polyester chips, wherein the auxiliary agent comprises a mixture of glycerol, titanium dioxide and zinc oxide, epoxy benzophenone and inorganic microparticles;
(2) the fine denier short fiber spinning process comprises the following steps: sequentially carrying out pre-crystallization, drying, melt extrusion, static mixing, metering by a metering pump, extruding by a spinning assembly, slow cooling and heat preservation, cooling by circular blowing, winding and forming, shredding and forming on the polyester slices obtained in the step (1) to form fine denier short fibers;
(3) siro spinning: and (3) spinning the fine denier short fibers obtained in the step (2) into yarns in a siro spinning mode, namely the anti-ultraviolet and moisture-absorbing quick-drying yarns.
According to the ultraviolet-proof and moisture-absorbing quick-drying yarn of the embodiment of the invention, in the step (1), under the condition that the temperature is 280-300 ℃, the terylene resin and the inorganic substance microparticles are put into a low-speed stirrer to be stirred for 10-15min to form a molten state; then adding nano zinc oxide, titanium dioxide and epoxy group benzophenone in sequence, mixing uniformly, adding glycerol, and continuing stirring at low speed for 30-50 min; finally, stirring at a medium speed for 60-90min, uniformly mixing, extruding by using a plasticizing instrument, and carrying out strand cutting to prepare polyester chips; the low speed is 100-200rpm, and the medium speed is 300-400 rpm.
According to the ultraviolet-proof and moisture-absorbing quick-drying yarn of the specific embodiment of the invention, in the step (1), the polyester resin and the auxiliary agent are as follows by weight percent: 0.07-0.08% of glycerin, 6-15% of a mixture of zinc oxide and titanium dioxide, 0.8-1.2% of epoxy benzophenone, 8-9% of inorganic substance microparticles and the balance of polyester resin. The epoxy benzophenone is an organic ultraviolet absorbent, under the action of illumination, the epoxy benzophenone can absorb ultraviolet light, along with a photoinduced interconversion structure of a hydrogen bond, the epoxy benzophenone can receive light energy instead of the breakage of the hydrogen bond, and the light energy is converted into heat energy, so that the consumed ultraviolet energy is consumed. The glycerol is a dispersing agent and is mainly used for improving the dispersing capacity of titanium dioxide and zinc oxide at high temperature, so that the spun fiber has an excellent ultraviolet-proof effect.
The particle size of zinc oxide and titanium dioxide in the mixture of zinc oxide and titanium dioxide is less than or equal to 400nm, and the mass ratio of the titanium dioxide to the zinc oxide is 1:10-1: 6. The titanium dioxide and the zinc oxide are inorganic compounds, have larger reflection and refraction or scattering effects on incident ultraviolet rays, and reduce the transmittance of the ultraviolet rays.
The preparation method of the mixture of the zinc oxide and the titanium dioxide comprises the following steps: respectively grinding titanium dioxide and zinc oxide into fine powder by adopting a high-energy ball milling mode, screening fine powder with the particle size of 10-50 microns, uniformly mixing the screened zinc oxide and titanium dioxide according to a ratio by adopting a nano grinder, and grinding the mixture into superfine particles with the particle size of less than or equal to 400nm to obtain a mixture of the zinc oxide and the titanium dioxide; the inorganic micro-particles are silicon dioxide, barium sulfate and/or ferric oxide. In alkaline solution, inorganic matter corpuscle can dissolve in caustic soda solution, like this the fine denier short fiber that forms at last inside will distribute a large amount of microporous structures, has promoted fibrous capillary effect by a wide margin, has strengthened fibrous hygroscopicity.
According to the invention, the ultraviolet-proof and moisture-absorbing quick-drying yarn is provided, wherein in the step (2), the temperature of the melt extrusion is 290-295 ℃, and the winding speed is 2600 r/min; the higher the temperature is, the better the fluidity of the spinning solution is, but the higher the temperature is, certain groups in the spinning solution can be hydrolyzed, and the spinning effect is influenced; the number of spinneret holes in the extrusion process of the spinning assembly is 144 meshes, the plate diameter of the spinneret plate is 95mm, the thickness of the spinneret plate is 24mm, the hole diameter of the spinneret plate is 0.18mm, and the spinneret holes are arranged in a rectangular shape; the spinneret plate with the thickness of 24mm is selected, so that the stability of spinning can be improved; in addition, the diameter of the spinneret plate is too small, so that the problems of uneven cooling of strand silk, poor effect and the like are easily caused, and the diameter of a 95mm plate is more appropriate; and the breakage rate can be increased when the aperture is too small, and the aperture is preferably 0.18 mm; the wind speed in the circular blowing cooling process is 0.3-0.4m/s, the wind humidity is 60-70%, and the temperature is 25-30 ℃; compared with the conventional spinning process, the invention adopts a circular air blowing cooling mode and combines special cooling pipes (the outer layer is of an annular structure, and a large number of micropores are distributed in the inner layer), so that the cooling consistency of the inner layer and the outer layer of the tows is ensured, and the spinning broken ends can be reduced; the spinning speed is 2800r/min, the spinning tension is 0.3cN/dtex, and the oiling rate of the filament bundle is 0.5-0.8%; and shredding by using a shredder, wherein the fineness of the fine denier staple fiber is 0.7-1.3 dtex.
According to the ultraviolet-proof moisture-absorbing quick-drying yarn disclosed by the embodiment of the invention, in the step (3), the fine denier staple fibers and cotton are used as raw materials for spinning in the siro spinning process, wherein the warp direction contains 60% -70% of cotton, the weft direction contains 30% -40% of the fine denier staple fibers, the weft direction contains 60% -70% of cotton, and the fine denier staple fibers contain 30% -40%; the fixed quantity of the roving is 3.5g/10m, the twist coefficient of the roving is 100, the drafting multiple of the rear area of the roving is 1.1, and the total drafting multiple of the roving machine is 4.5; the center distance of the bell mouth of the spun yarn is 3.0mm, the twist coefficient of the spun yarn is 360, the total drafting multiple of a spinning machine is 60 times, the speed of a front roller of the spun yarn is 115r/min, and the fineness of the spun yarn is 16-23 tex. The setting greatly increases the number of the cross sections of the fibers in the yarn, so that more micro air chambers are formed between the fibers, and the capillary effect is improved.
The invention also aims to provide a production process of the ultraviolet-proof moisture-absorbing quick-drying yarn.
The production process of the ultraviolet-proof and moisture-absorbing quick-drying yarn according to the embodiment of the invention comprises the following steps:
(1) preparation of polyester chip: polyester resin and an auxiliary agent are adopted to prepare polyester chips, wherein the auxiliary agent comprises a mixture of glycerol, titanium dioxide and zinc oxide, epoxy benzophenone and inorganic microparticles;
(2) the fine denier short fiber spinning process comprises the following steps: sequentially carrying out pre-crystallization, drying, melt extrusion, static mixing, metering by a metering pump, extruding by a spinning assembly, slow cooling and heat preservation, cooling by circular blowing, winding and forming, shredding and forming on the polyester slices obtained in the step (1) to form fine denier short fibers;
(4) siro spinning: and (3) spinning the fine denier short fibers obtained in the step (2) into yarns in a siro spinning mode, namely the anti-ultraviolet and moisture-absorbing quick-drying yarns.
It is a further object of the present invention to provide the use of a uv resistant and moisture absorbent quick drying yarn.
A knit or woven fabric formed of uv protected and moisture absorbent quick drying yarns according to embodiments of the present invention.
According to the knitted fabric or woven fabric of the specific embodiment of the invention, in the manufacturing process of the knitted fabric or woven fabric, the ultraviolet-proof and moisture-absorbing quick-drying yarn is wound on a warp beam through a warping machine, then the yarn on the warp beam is sequentially sent into a size tank, sizing operation is carried out by adopting size prepared by corn starch and PVA according to a proportion, and then the knitted fabric or woven fabric is formed after weaving, desizing, dyeing and heat setting; the yarn count density of the knitted fabric or the woven fabric is 472-551 yarns/10 cm in the warp direction and 314 yarns/10 cm in the weft direction.
The knitted fabric or woven fabric according to the embodiment of the invention, wherein the small tension of the warping machine is 10-12cN, the large tension is 20-22cN, and the warping speed is 400-600 m/min; the temperature in the sizing process is 90-95 ℃, the sizing pressure is 22-24KN, and the sizing speed is 75 m/min; the weight ratio of the corn starch to the PVA is 10: 1; weaving by adopting a 'late opening' process; an open-width desizing and dyeing integrated machine is adopted, the fabric is subjected to open-width alkali rolling in a groove, then is subjected to steaming in an open-width steaming box for 60min, and is subjected to washing, dyeing and heat setting after being fully desized; the frock fabric requires the fabric surface to be clean and tidy, stiff and smooth, less in hairiness and high in strength, so the designed weave is a twill weave with two upper parts and one lower part, and the weaving is carried out by adopting a 'late opening' process. In the weaving process, in order to improve the stress condition of the yarns, the opening and closing time can be properly prolonged. The delayed opening can reduce the warp tension and the resistance during beating-up, can effectively reduce the broken warp rate, and can make the cloth cover lines clear. Compared with the conventional terylene, the fine denier terylene of the invention has more surface grooves and more internal micropores, increases the specific surface area of the fiber, leads to the acceleration of the dyeing rate, therefore, the initial dyeing temperature is reduced by 10-15 ℃, and the temperature rise rate is strictly controlled (the standard dyeing temperature is 190-200 ℃, namely 175-190 ℃).
According to the knitted fabric or woven fabric of the embodiment of the invention, further, the caustic soda concentration in the open width alkali rolling process is 5-8g/L, and the temperature is 80-90 ℃; the temperature of the heat setting is 165-175 ℃, and the time is 30-40 s. The heat setting is mainly to enable the fabric to be more stiff and smooth, and the high-temperature setting is beneficial to reducing the internal stress in the fiber, so that the dimensional stability of the fabric is improved, and finally the tooling fabric with excellent ultraviolet-proof and moisture-absorbing quick-drying effects is obtained.
According to the knitted fabric or woven fabric of the specific embodiment of the invention, alkali decrement treatment is carried out during desizing, wherein the alkali decrement treatment is to put a woven semi-finished product into NaOH solution with the concentration of 3-10g/L and the temperature of 95-98 ℃ for rinsing and reacting for 40min, and then high-temperature washing, medium-temperature washing, cold water washing, acid neutralization, normal-temperature washing, dehydration and drying are sequentially carried out, so that the alkali decrement treatment process can be completed; the high-temperature water washing is rinsing by adopting water with the temperature of 80 ℃; the medium-temperature water washing is water washing by adopting hot water at 60 ℃; the cold water washing is rinsing by adopting cold water at the temperature of 0-4 ℃. In order to make the woven semi-finished product have the effect of moisture absorption and quick drying, alkali deweighting treatment is needed, and the main purpose of the alkali deweighting process is to dissolve inorganic particles contained in the fiber, so that a large number of micropores are formed in the fiber and a large number of grooves are formed on the surface of the fiber.
The purpose of slow cooling and heat preservation is to delay the cooling rate of the filament.
The siro spinning, also known as doubling and twisting spinning, is characterized by that two pieces of roving yarn with a certain spacing are fed into spinning machine, after drafted, the two pieces of single yarn strands are delivered from front roller, and the single yarn strands are provided with a small amount of twist due to the transfer of twist, and after being pieced together, they are further twisted into yarn similar to ply, and wound on bobbin.
The alkali deweighting process is a production process which utilizes concentrated alkali liquor to hydrolyze and corrode macromolecular lipid bonds in polyester fabrics, so as to cause the tissues of fiber fabrics to be loose and lighten the weight of the fabrics, thereby achieving the real silk feeling of the fabrics.
The invention has the beneficial effects that:
the invention provides an anti-ultraviolet and moisture-absorbing quick-drying yarn which is prepared from anti-ultraviolet fine-denier polyester staple fibers, wherein a small amount of nano zinc oxide, titanium dioxide, epoxy benzophenone and inorganic microparticles are added into polyester resin slices in the preparation of the yarn, so that the problems of poor fluid viscosity stability, unstable spinning, easy yarn breakage and the like in spinning are solved;
the fine denier short fiber with high performance and anti-ultraviolet grade prepared by the spinning process has the ultraviolet shielding rate of 97 percent, has higher durability than anti-ultraviolet after-finishing textiles, can reduce the after-finishing process, reduces the cost of manpower and material resources, and is beneficial to environmental protection;
according to the invention, inorganic microparticles are blended in polyester chips, and the fine denier polyester staple fiber prepared by a spinning process is subjected to alkali decrement treatment, so that alkali-soluble polyester is removed, a large number of micropores are formed in the fiber, and the fine denier staple fiber has small fineness and high filling density, so that a micro air chamber can be formed in the fiber after yarn forming, the capillary effect of the fiber is greatly improved, and the finally formed fabric has an excellent moisture absorption and quick drying effect;
the invention improves the traditional melt spinning, and the fineness of the spun fiber can reach 0.6 to 1.0 dtex;
the chemical auxiliary agent adopted by the invention has no pollution to the environment and no corrosiveness, belongs to an environment-friendly product, and the produced tooling fabric has the functions of ultraviolet resistance, moisture absorption and quick drying, high air permeability and soft close-fitting surface, and has no harm to a human body.
Drawings
FIG. 1 is a schematic view of a circular-blowing cooling tube according to the present invention;
FIG. 2 is a schematic view of the structure of a micropore in the present invention;
FIG. 3 is an electron micrograph of a fine denier staple fiber of the present invention.
Reference numerals
8-a cooling pipe; 9-micropores; 10-outer opening; 11-inner orifice.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1
The embodiment provides an ultraviolet-proof moisture-absorbing quick-drying yarn, which is produced by the following process:
(1) preparation of polyester chip: firstly, respectively grinding titanium dioxide and zinc oxide into fine powder by adopting a high-energy ball milling mode, screening fine powder with the particle size of 10-50 microns, then uniformly mixing the screened zinc oxide and titanium dioxide by adopting a nano grinder according to the mass ratio of 1:10, and grinding the mixture into superfine particles with the particle size of less than 400nm to obtain a mixture of the zinc oxide and the titanium dioxide; taking 0.07 percent of glycerin, 15 percent of mixture of zinc oxide and titanium dioxide, 1.2 percent of epoxy group benzophenone, 9 percent of silicon dioxide and barium sulfate and the balance of polyester resin as raw materials; under the condition that the temperature is 280 ℃, putting polyester resin, silicon dioxide and barium sulfate into a low-speed stirrer to be stirred for 15min to form a molten state; then adding nano zinc oxide, titanium dioxide and epoxy group benzophenone in sequence, mixing uniformly, adding glycerol, and continuing stirring at low speed for 30 min; finally, stirring at a medium speed for 90min, uniformly mixing, extruding by using a plasticizing instrument, and carrying out strand cutting to prepare polyester chips; the low speed is 100rpm, and the medium speed is 300 rpm;
(2) the fine denier short fiber spinning process comprises the following steps: pre-crystallizing, drying, melt extruding, static mixing, metering by a metering pump, extruding by a spinning assembly, slowly cooling, preserving heat, cooling by circular blowing, winding and forming, shredding, bunching, guiding, drafting, shaping and heating by a hot box, oiling by an oil tanker, and winding and forming the polyester chips obtained in the step (1) in sequence to form fine denier short fibers; the temperature of the melt extrusion is 295 ℃, and the winding forming speed is 2600 r/min; the number of spinneret holes in the extrusion process of the spinning assembly is 144 meshes, the plate diameter is 95mm, the thickness is 24mm, the hole diameter is 0.18mm, and the spinneret holes are arranged in a rectangular shape; the wind speed in the circular blowing cooling process is 0.3m/s, the wind humidity is 70%, and the temperature is 30 ℃; the spinning speed is 2800r/min, the spinning tension is 0.3cN/dtex, and the oiling rate of the filament bundle is 0.5%; shredding by using a shredder, wherein the fineness of the fine denier staple fiber is 1.0 dtex;
(3) siro spinning: carrying out siro spinning by taking the fine denier short fibers and the cotton obtained in the step (2) as raw materials, wherein the warp direction contains 60 percent of cotton, the weft direction contains 40 percent of the fine denier short fibers, and the weft direction contains 70 percent of cotton, and the weft direction contains 30 percent of the fine denier short fibers; the fixed quantity of the roving is 3.5g/10m, the twist coefficient of the roving is 100, the drafting multiple of the rear area of the roving is 1.1, and the total drafting multiple of the roving machine is 4.5; the center distance of the bell mouth of the spun yarn is 3.0mm, the twist coefficient of the spun yarn is 360, the total drafting multiple of a spinning machine is 60 times, the speed of a front roller of the spun yarn is 115r/min, and the fineness of the spun yarn is 16tex, so that the ultraviolet-proof moisture-absorbing quick-drying yarn is obtained.
The knitted fabric is formed by the ultraviolet-proof and moisture-absorbing quick-drying yarns, the ultraviolet-proof and moisture-absorbing quick-drying yarns are wound on a warp beam through a warping machine in the manufacturing process of the knitted fabric, the yarns on the warp beam are sequentially sent into a size box, sizing operation is carried out on size prepared by corn starch and PVA according to a proportion, and the knitted fabric is formed after weaving, desizing, dyeing and heat setting in sequence; the yarn count density of the knitted fabric is 472 yarns/10 cm in the warp direction and 236 yarns/10 cm in the weft direction; the small tension of the warping machine is 12cN, the large tension is 20cN, and the warping speed is 600 m/min; the temperature in the sizing process is 90 ℃, the sizing pressure is 24KN, and the sizing vehicle speed is 75 m/min; the weight ratio of the corn starch to the PVA is 10: 1; weaving by adopting a 'late opening' process; an open-width desizing and dyeing integrated machine is adopted, the fabric is subjected to open-width alkali rolling in a groove, then is subjected to steaming in an open-width steaming box for 60min, and is subjected to washing, dyeing and heat setting after being fully desized; the caustic soda concentration in the open-width caustic soda rolling process is 5g/L, and the temperature is 90 ℃; the heat setting temperature is 165 ℃ and the time is 40 s.
Example 2
The embodiment provides an ultraviolet-proof moisture-absorbing quick-drying yarn, which is produced by the following process:
(1) preparation of polyester chip: respectively grinding titanium dioxide and zinc oxide into fine powder by adopting a high-energy ball milling mode, screening fine powder with the particle size of 10-50 microns, uniformly mixing the screened zinc oxide and titanium dioxide by adopting a nano grinder according to the mass ratio of 1:6, and grinding the mixture into superfine particles with the particle size of less than or equal to 400nm to obtain a mixture of the zinc oxide and the titanium dioxide; the raw materials comprise 0.08 percent of glycerin, 6 percent of a mixture of zinc oxide and titanium dioxide, 0.8 percent of epoxy group benzophenone, 8 percent of silicon dioxide, barium sulfate and/or ferric oxide and the balance of polyester resin; under the condition that the temperature is 300 ℃, putting the polyester resin and the silicon dioxide, the barium sulfate and/or the ferric oxide into a low-speed stirrer to be stirred for 10min to form a molten state; then adding nano zinc oxide, titanium dioxide and epoxy group benzophenone in sequence, mixing uniformly, adding glycerol, and continuing to stir at low speed for 50 min; finally, stirring at a medium speed for 60min, uniformly mixing, extruding by using a plasticizing instrument, and carrying out strand cutting to prepare polyester chips; the low speed is 200rpm, and the medium speed is 400 rpm;
(2) the fine denier short fiber spinning process comprises the following steps: pre-crystallizing, drying, melt extruding, static mixing, metering by a metering pump, extruding by a spinning assembly, slowly cooling, preserving heat, cooling by circular blowing, winding and forming, shredding, bunching, guiding, drafting, shaping and heating by a hot box, oiling by an oil tanker, and winding and forming the polyester chips obtained in the step (1) in sequence to form fine denier short fibers; the temperature of the melt extrusion is 290 ℃, and the speed of the winding molding is 2600 r/min; the number of spinneret holes in the extrusion process of the spinning assembly is 144 meshes, the plate diameter is 95mm, the thickness is 24mm, the hole diameter is 0.18mm, and the spinneret holes are arranged in a rectangular shape; the wind speed in the circular blowing cooling process is 0.3-0.4m/s, the wind humidity is 60%, and the temperature is 25 ℃; the spinning speed is 2800r/min, the spinning tension is 0.3cN/dtex, and the oiling rate of the filament bundle is 0.8%; shredding by using a shredder, wherein the fineness of the fine denier staple fiber is 0.7 dtex;
(4) siro spinning: carrying out siro spinning by taking the fine denier short fibers and the cotton obtained in the step (2) as raw materials, wherein the warp direction contains 70% of cotton, the weft direction contains 30% of the fine denier short fibers, and the weft direction contains 60% of cotton, and the fine denier short fibers contain 40%; the fixed quantity of the roving is 3.5g/10m, the twist coefficient of the roving is 100, the drafting multiple of the rear area of the roving is 1.1, and the total drafting multiple of the roving machine is 4.5; the center distance of the bell mouth of the spun yarn is 3.0mm, the twist coefficient of the spun yarn is 360, the total drafting multiple of a spinning machine is 60 times, the speed of a front roller of the spun yarn is 115r/min, and the fineness of the spun yarn is 23tex, so that the ultraviolet-proof moisture-absorbing quick-drying yarn is obtained.
A woven fabric formed by the ultraviolet-proof moisture-absorbing quick-drying yarns is characterized in that the ultraviolet-proof moisture-absorbing quick-drying yarns are wound on a warp beam by a warping machine in the manufacturing process of the woven fabric, the yarns on the warp beam are sequentially sent into a size box, sizing operation is carried out on size prepared by corn starch and PVA according to a proportion, and the woven fabric is formed after weaving, desizing, dyeing and heat setting in sequence; the yarn count density of the knitted fabric or the woven fabric is 551 yarns per 10cm in the warp direction and 314 yarns per 10cm in the weft direction; the small tension of the warping machine is 10cN, the large tension is 22cN, and the warping speed is 400 m/min; the temperature in the sizing process is 95 ℃, the sizing pressure is 22KN, and the sizing vehicle speed is 75 m/min; the weight ratio of the corn starch to the PVA is 10: 1; weaving by adopting a 'late opening' process; an open-width desizing and dyeing integrated machine is adopted, the fabric is subjected to open-width alkali rolling in a groove, then is subjected to steaming in an open-width steaming box for 60min, and is subjected to washing, dyeing and heat setting after being fully desized; the caustic soda concentration in the open-width caustic soda rolling process is 8g/L, and the temperature is 80 ℃; the temperature of the heat setting is 175 ℃ and the time is 30 s;
performing alkali decrement treatment in a desizing process, specifically, putting the woven semi-finished product obtained in the step (2) into NaOH solution with the concentration of 3-10g/L and the temperature of 98 ℃ for rinsing and reacting for 40min, and then sequentially performing high-temperature water washing, medium-temperature water washing, cold water washing, acid neutralization, normal-temperature water washing, dehydration and drying to finish the alkali decrement treatment process; the high-temperature water washing is rinsing by adopting water with the temperature of 80 ℃; the medium-temperature water washing is water washing by adopting hot water at 60 ℃; the cold water washing is rinsing by adopting cold water at the temperature of 0-4 ℃. As shown in fig. 3, the fine denier staple fiber after alkali weight reduction treatment is rougher in surface and porous, and is more moisture-absorbing and quick-drying than the fiber without alkali weight reduction treatment.
Example 3
The embodiment provides an ultraviolet-proof moisture-absorbing quick-drying yarn, which is produced by the following process:
(1) preparation of polyester chip: respectively grinding titanium dioxide and zinc oxide into fine powder by adopting a high-energy ball milling mode, screening fine powder with the particle size of 10-50 microns, uniformly mixing the screened zinc oxide and titanium dioxide by adopting a nano grinder according to the mass ratio of 1:8, and grinding the mixture into superfine particles with the particle size of less than or equal to 400nm to obtain a mixture of the zinc oxide and the titanium dioxide; the raw materials comprise 0.075 percent of glycerol, 10 percent of mixture of zinc oxide and titanium dioxide, 1.0 percent of epoxy benzophenone, 8.5 percent of ferric oxide and the balance of polyester resin; under the condition that the temperature is 290 ℃, the polyester resin and the ferric oxide are put into a low-speed stirrer to be stirred for 13min to form a molten state; then adding nano zinc oxide, titanium dioxide and epoxy group benzophenone in sequence, mixing uniformly, adding glycerol, and continuing to stir at low speed for 40 min; finally, stirring at a medium speed for 75min, uniformly mixing, extruding by using a plasticizing instrument, and carrying out strand cutting to prepare polyester chips; the low speed is 150rpm, and the medium speed is 350 rpm;
(2) the fine denier short fiber spinning process comprises the following steps: pre-crystallizing, drying, melt extruding, static mixing, metering by a metering pump, extruding by a spinning assembly, slowly cooling, preserving heat, cooling by circular blowing, winding and forming, shredding, bunching, guiding, drafting, shaping and heating by a hot box, oiling by an oil tanker, and winding and forming the polyester chips obtained in the step (1) in sequence to form fine denier short fibers; the temperature of the melt extrusion is 293 ℃, and the winding forming speed is 2600 r/min; the number of spinneret holes in the extrusion process of the spinning assembly is 144 meshes, the plate diameter is 95mm, the thickness is 24mm, the hole diameter is 0.18mm, and the spinneret holes are arranged in a rectangular shape; the wind speed in the circular blowing cooling process is 0.3m/s, the wind humidity is 65 percent, and the temperature is 28 ℃; the spinning speed is 2800r/min, the spinning tension is 0.3cN/dtex, and the oiling rate of the filament bundle is 0.6%; shredding by using a shredder, wherein the fineness of the fine denier staple fiber is 1.3 dtex;
(3) siro spinning: carrying out siro spinning by taking the fine denier short fibers and the cotton obtained in the step (2) as raw materials, wherein the warp direction contains 65% of cotton, the weft direction contains 35% of the fine denier short fibers, and the weft direction contains 68% of cotton, and the fine denier short fibers contain 32%; the fixed quantity of the roving is 3.5g/10m, the twist coefficient of the roving is 100, the drafting multiple of the rear area of the roving is 1.1, and the total drafting multiple of the roving machine is 4.5; the center distance of the bell mouth of the spun yarn is 3.0mm, the twist coefficient of the spun yarn is 360, the total drafting multiple of a spinning machine is 60 times, the speed of a front roller of the spun yarn is 115r/min, and the fineness of the spun yarn is 20tex, so that the ultraviolet-proof moisture-absorbing quick-drying yarn is obtained.
A knitted fabric formed by the ultraviolet-proof and moisture-absorbing quick-drying yarns is characterized in that the ultraviolet-proof and moisture-absorbing quick-drying yarns are wound on a warp beam by a warping machine in the manufacturing process, then the yarns on the warp beam are sequentially sent into a size box, sizing operation is carried out by sizing agent prepared by corn starch and PVA according to a proportion, and the fabric is formed after weaving, desizing, dyeing and heat setting in sequence, wherein the yarn count density is 500 pieces/10 cm in the warp direction and 300 pieces/10 cm in the weft direction; the small tension of the warping machine is 11cN, the large tension is 21cN, and the warping speed is 500 m/min; the temperature in the sizing process is 93 ℃, the sizing pressure is 23KN, and the sizing vehicle speed is 75 m/min; the weight ratio of the corn starch to the PVA is 10: 1; weaving by adopting a 'late opening' process; an open-width desizing and dyeing integrated machine is adopted, the fabric is subjected to open-width alkali rolling in a groove, then is subjected to steaming in an open-width steaming box for 60min, and is subjected to washing, dyeing and heat setting after being fully desized; the caustic soda concentration in the open-width caustic soda rolling process is 6g/L, and the temperature is 85 ℃; the temperature of the heat setting is 170 ℃ and the time is 35 s.
Performing alkali decrement treatment in a desizing process, specifically, putting the woven semi-finished product obtained in the step (2) into NaOH solution with the concentration of 5g/L and the temperature of 96 ℃ for rinsing and reacting for 40min, and then sequentially performing high-temperature water washing, medium-temperature water washing, cold water washing, acid neutralization, normal-temperature water washing, dehydration and drying to finish the alkali decrement treatment process; the high-temperature water washing is rinsing by adopting water with the temperature of 80 ℃; the medium-temperature water washing is water washing by adopting hot water at 60 ℃; the cold water washing is to carry out alkali decrement treatment by rinsing with cold water at the temperature of 2 ℃;
example 4
The embodiment provides a production process flow of an anti-ultraviolet moisture-absorbing quick-drying fine-denier polyester staple fiber fabric, which comprises the following steps: preparation of polyester chip-fine denier short fiber spinning process-alkali decrement treatment-warp warping and sizing process-weaving process-desizing, dyeing-heat setting-finished product
The preparation of the polyester chip comprises polyester resin and an auxiliary agent. The proportion of each component in the slice is 0.07 percent of glycerol, 9 percent of nano titanium dioxide and zinc oxide, 1 percent of epoxy benzophenone, 8 percent of inorganic particles and the balance of terylene resin.
This example provides a method for preparing the slice, which mainly comprises the following steps:
(1) blending polyester resin and inorganic matter microparticles at 280 ℃, and then putting the mixture into a stirrer with low speed of 150rpm for stirring for 10min to form a molten state;
(2) sequentially adding nano zinc oxide, titanium dioxide, epoxy benzophenone and glycerol, and continuously stirring for 40 min;
(3) slowly adjusting the stirring speed to 300rpm, stirring for 70min, extruding by a plasticator, and carrying out strand cutting to prepare functional polyester chips.
Further, the embodiment provides a spinning method for preparing the fine denier polyester staple fiber, which comprises the following main process flows:
feeding wet slices, pre-crystallizing, drying, melt extrusion, static mixing, metering by a metering pump, extruding by a spinning assembly, slowly cooling and preserving heat, cooling by circular blowing, winding and forming, a filament cutter, a filament containing cylinder, a filament bundling frame, a filament guide machine, a drawing machine, a shaping hot box, oiling by an oil tanker, and winding and forming
(1) The pre-crystallization temperature is 165 ℃, the drying temperature is 176 ℃, and the dew point of compressed air is-60 ℃ during drying. The operation aims at fully removing moisture in the slices and improving the purity of the slices;
(2) the spinning temperature is 290 ℃, the spinning speed is 2600r/min, and the reasonable temperature and spinning speed are favorable for reducing the probability of yarn breakage and yarn floating in the spinning process;
(3) the number of the spinneret holes is 144 meshes, the plate diameter is 95mm, the thickness is 24mm, the hole diameter is 0.18mm, and the spinneret holes are arranged in a rectangular shape.
(4) The air speed of the circular blowing air is 0.3m/s, the air humidity is 60%, and the temperature is 25 ℃;
(5) the spinning speed is 2800r/min, the spinning tension is 0.3cN/dtex, and the oiling rate of the tows is 0.5%;
(6) the filaments are cut into short fibers with uniform length by a filament cutter, and the fiber fineness is 0.66 dtex.
Furthermore, the embodiment provides a method for obtaining moisture absorption and quick drying effect of the fine denier polyester staple fiber, which dissolves out inorganic substance microparticles contained in the fiber, so that a large number of micropore structures exist in the fiber, and the specific process is as follows: alkali decrement treatment (caustic soda concentration is 5g/L, 95 ℃ and 40 min), hot water washing at 80 ℃, cold water washing at 60 ℃, cold water washing, acid neutralization, water washing, dehydration and drying.
The prepared fine denier staple fibers are spun into yarns by adopting a siro spinning mode, the roving ration is 3.5g/10m, the roving twist coefficient is 100, the drafting multiple of the rear area of the roving is 1.1, the drafting total multiple of a roving frame is 4.5, the center distance of a yarn horn mouth is 3.0mm, the spinning twist coefficient is 360, the drafting total multiple of a spinning frame is 60 times, and the speed of a roller before spinning is 115 r/min.
The yarn is wound on a beam by a warping machine, the warping low tension is 10cN, the warping high tension is 20cN, and the warping speed is 500 m/min. The yarns on the warp beam are sequentially sent into a size box according to a certain arrangement, sizing operation is carried out by adopting size prepared by corn starch and PVA according to the proportion of 10:1, wherein the sizing temperature is 90 ℃, the sizing pressure is 22KN, and the sizing vehicle speed is 75 m/min.
The desizing and dyeing process adopts an open-width desizing and dyeing integrated machine, the fabric is firstly subjected to open-width alkali rolling in a groove, the concentration of caustic soda is 6g/L, the temperature is 85 ℃, the fabric is steamed for 60min in an open-width steaming box, the fabric is fully desized, and then washing and dyeing are carried out. The heat setting process is carried out at the temperature of 165 ℃ for 40S. The method mainly aims to enable the fabric to be more stiff and smooth, and simultaneously, high-temperature setting is beneficial to reducing the internal stress in the fiber, so that the dimensional stability of the fabric is improved, and finally the tooling fabric with excellent ultraviolet-proof and moisture-absorbing quick-drying effects is obtained.
Example 5
The embodiment provides a production process flow of an anti-ultraviolet, moisture-absorbing and quick-drying fine-denier polyester staple fiber fabric, which comprises the following steps: preparation of polyester slice-fine denier short fiber spinning process-alkali decrement treatment-siro spinning-warp warping and sizing process-weaving process-desizing, dyeing-heat setting-finished product
The preparation of the polyester chip comprises polyester resin and an auxiliary agent. The proportion of each component in the slice is 0.08 percent of glycerin, 15 percent of nano titanium dioxide and zinc oxide, 1 percent of epoxy group benzophenone, 9 percent of inorganic particles and the balance of terylene resin.
This example provides a method for preparing the slice, which mainly comprises the following steps:
(1) blending polyester resin and inorganic matter microparticles at 280 ℃, and then putting the blended polyester resin and inorganic matter microparticles into a stirrer with a low speed of 220rpm for stirring for 15min to form a molten state;
(2) sequentially adding nano zinc oxide, titanium dioxide, epoxy benzophenone and glycerol, and continuously stirring for 40 min;
(3) slowly adjusting the stirring speed to 400rpm, stirring for 90min, extruding by a plasticator, and carrying out strand cutting to prepare functional polyester chips.
Further, the embodiment provides a spinning method for preparing the fine denier polyester staple fiber, which comprises the following main process flows:
feeding wet slices, pre-crystallizing, drying, melt extrusion, static mixing, metering by a metering pump, extruding by a spinning assembly, slowly cooling and preserving heat, cooling by circular blowing, winding and forming, a filament cutter, a filament containing cylinder, a filament bundling frame, a filament guide machine, a drawing machine, a shaping hot box, oiling by an oil tanker, and winding and forming
(1) The pre-crystallization temperature is 165 ℃, the drying temperature is 176 ℃, and the dew point of compressed air is-60 ℃ during drying. The operation aims at fully removing moisture in the slices and improving the purity of the slices;
(2) the spinning temperature is 295 ℃, the spinning speed is 2600r/min, and the reasonable temperature and spinning speed are favorable for reducing the probability of yarn breakage and yarn floating in the spinning process;
(3) the number of the spinneret holes is 144 meshes, the plate diameter is 95mm, the thickness is 24mm, the hole diameter is 0.18mm, and the spinneret holes are arranged in a rectangular shape;
(4) the air speed of the circular blowing air is 0.4m/s, the air humidity is 70%, and the temperature is 28 ℃;
(5) the spinning speed is 2800r/min, the spinning tension is 0.3cN/dtex, and the oiling rate of the tows is 0.8%;
(6) the filaments are cut into short fibers with uniform length by a filament cutter, and the fiber fineness is 0.88 dtex.
Furthermore, the embodiment provides a method for obtaining moisture absorption and quick drying effect of the fine denier staple fiber, which dissolves out inorganic substance microparticles contained in the fiber, so that a large number of micropore structures exist in the fiber, and the specific process is as follows: alkali decrement treatment (caustic soda concentration 9g/L, 90 ℃, 40 min) — hot water washing at 80 ℃, cold water washing at 60 ℃, cold water washing, acid neutralization, water washing, dehydration and drying.
The prepared fine denier staple fibers are spun into yarns by adopting a siro spinning mode, the roving ration is 3.5g/10m, the roving twist coefficient is 100, the drafting multiple of the rear area of the roving is 1.1, the drafting total multiple of a roving frame is 4.5, the center distance of a yarn horn mouth is 3.0mm, the spinning twist coefficient is 360, the drafting total multiple of a spinning frame is 60 times, and the speed of a roller before spinning is 115 r/min.
The yarn is wound on a beam by a warping machine, the warping low tension is 12cN, the warping high tension is 22cN, and the warping speed is 600 m/min. The yarns on the warp beam are sequentially sent into a size box according to a certain arrangement, sizing operation is carried out by adopting size prepared by corn starch and PVA according to the proportion of 10:1, wherein the sizing temperature is 95 ℃, the sizing pressure is 24KN, and the sizing vehicle speed is 75 m/min.
The desizing and dyeing process adopts an open-width desizing and dyeing integrated machine, the fabric is subjected to open-width alkali rolling (the concentration of caustic soda is 8g/L and the temperature is 90 ℃) in a groove, and the fabric is steamed for 60min in an open-width steaming box, fully desized and washed and dyed. Compared with the conventional polyester, the fine-denier polyester staple fiber has a tighter fiber structure and a larger specific surface area of the fiber, so that the adsorption rate of the fine-denier polyester staple fiber to dye is increased, the initial dyeing temperature is reduced by 10-15 ℃, and the temperature rise rate is controlled.
The heat setting process is carried out at the temperature of 175 ℃ for 30S. The method mainly aims to enable the fabric to be more stiff and smooth, and simultaneously, high-temperature setting is beneficial to reducing the internal stress in the fiber, so that the dimensional stability of the fabric is improved, and finally the tooling fabric with excellent ultraviolet-proof and moisture-absorbing quick-drying effects is obtained.
Compared with the conventional spinning process, the invention improves a cooling system, adopts a special cooling pipe technology, and combines a circular air blowing cooling system to cool tows, as shown in figure 1, a cooling pipe 8 is of an annular structure, and micropores 9 are uniformly distributed on the cooling pipe 8; the micropore 9 is similar to a circular truncated cone in structure as shown in fig. 2, and the diameter of the outer opening 10 is slightly smaller than that of the inner opening 11. The ring blowing process wind reaches the surface of the tows after being uniformly distributed through the micropores, the special ring-shaped cooling pipe can eliminate rapid airflow and supplement negative pressure airflow formed along with the airflow, the consistency of the cooling effect of the inner layer and the outer layer of the tows is ensured, and the purposes of reducing spinning broken ends and improving the production efficiency can be achieved.
The various indices of the fabrics produced in examples 1-5 are shown in tables 1 and 2:
TABLE 1 ultraviolet protection Properties of the Fabric
| Detecting items | UPF | UVA ultraviolet transmittance (%) | UVB ultraviolet transmittance (%) |
| Example 1 | 35 | 4.28 | 1.76 |
| Example 2 | 43 | 4.30 | 1.95 |
| Example 3 | 40 | 4.32 | 1.82 |
| Example 4 | 30 | 4.35 | 2.05 |
| Example 5 | 50 | 4.26 | 1.67 |
TABLE 2 moisture absorption and quick drying Properties of the Fabric
| Detecting items | Water absorption (%) | Wicking height (mm) | Moisture permeability (g/m 2. d) | Evaporation Rate (g/h) |
| Example 1 | 103 | 96 | 9080 | 0.4 |
| Example 2 | 102 | 93 | 9160 | 0.4 |
| Example 3 | 104 | 98 | 9500 | 0.6 |
| Example 4 | 103 | 95 | 9080 | 0.5 |
| Example 5 | 105 | 97 | 9800 | 0.6 |
As can be seen from the data in table 1, the fabrics prepared in examples 1 to 5 have low uv transmittance in both UVA and UVB regions, and have excellent uv protection performance. As can be seen from the data in Table 2, the water absorption rate of the fabrics prepared in the examples 1-5 can reach more than 100, the wicking height can reach more than 90, the moisture permeability can be kept between 9000 and 10000, the evaporation rate is slow, the fabric has a strong capillary effect, and the skin-friendly and comfortable effect is reflected.
The comparison of various indexes of the fabric produced in example 1 after multiple water washes with those before washing is shown in table 3.
TABLE 3 comparison of the indices after washing with water with those before washing
| Detecting items | Water absorption (%) | Drip spread time(s) | Wicking height (mm) | Moisture permeability (g/m 2. d) | Evaporation Rate (g/h) |
| Before washing | 103 | <3 | 96 | 9080 | 0.7 |
| After washing for 5 times | 108 | <3 | 99 | 9740 | 0.6 |
As can be seen from the data in Table 3, the water absorption of the fabric prepared in example 1 is increased after 5 times of washing, the water drop diffusion time is not changed obviously, the wicking height can reach more than 90, the moisture permeability is kept between 9000 and 10000, and the evaporation rate is relatively slow, so that the fabric prepared by the invention still has good effects of moisture absorption, quick drying, skin friendliness and comfort after 5 times of washing.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (5)
1. A knitted fabric or woven fabric formed by anti-ultraviolet and moisture-absorbing quick-drying yarns is characterized in that the knitted fabric or woven fabric is formed by winding the anti-ultraviolet and moisture-absorbing quick-drying yarns on a warp beam through a warping machine in the manufacturing process, then sequentially feeding the yarns on the warp beam into a size box, performing sizing operation by using size prepared by corn starch and PVA in proportion, and then sequentially performing weaving, desizing, dyeing and heat setting; the yarn count density of the knitted fabric or the woven fabric is 472-551 yarns/10 cm in the warp direction and 314 yarns/10 cm in the weft direction;
the ultraviolet-proof moisture-absorbing quick-drying yarn is produced by a process comprising the following steps of:
(1) preparation of polyester chip: polyester resin and an auxiliary agent are adopted to prepare polyester chips, wherein the auxiliary agent comprises a mixture of glycerol, titanium dioxide and zinc oxide, epoxy benzophenone and inorganic microparticles; the polyester resin and the auxiliary agent are as follows by weight percent: 0.07-0.08% of glycerol, 6-15% of a mixture of zinc oxide and titanium dioxide, 0.8-1.2% of epoxy benzophenone, 8-9% of inorganic substance microparticles and the balance of polyester resin; the inorganic micro-particles are silicon dioxide, barium sulfate and/or ferric oxide;
(2) the fine denier short fiber spinning process comprises the following steps: sequentially carrying out pre-crystallization, drying, melt extrusion, static mixing, metering by a metering pump, extruding by a spinning assembly, slow cooling and heat preservation, cooling by circular blowing, winding and forming, shredding and forming on the polyester slices obtained in the step (1) to form fine denier short fibers;
(3) siro spinning: spinning the fine denier staple fibers obtained in the step (2) into yarns in a siro spinning mode, namely the anti-ultraviolet and moisture-absorbing quick-drying yarns; in the siro spinning process, the fine denier staple fibers and cotton are used as raw materials for spinning, the warp direction contains 60% -70% of cotton, the weft direction contains 30% -40% of the fine denier staple fibers, the weft direction contains 60% -70% of cotton, and the fine denier staple fibers contain 30% -40%.
2. The knitted fabric or woven fabric according to claim 1, wherein in the step (1), the terylene resin and the inorganic fine particles are put into a low-speed stirrer to be stirred for 10-15min at the temperature of 280-300 ℃ to form a molten state; then adding nano zinc oxide, titanium dioxide and epoxy group benzophenone in sequence, mixing uniformly, adding glycerol, and continuing stirring at low speed for 30-50 min; finally, stirring at a medium speed for 60-90min, uniformly mixing, extruding by using a plasticizing instrument, and carrying out strand cutting to prepare polyester chips; the low speed is 100-200rpm, and the medium speed is 300-400 rpm.
3. The knitted or woven fabric according to claim 1, wherein in step (1), the polyester resin and the auxiliary agent are, in weight percent: 0.07-0.08% of glycerol, 6-15% of a mixture of zinc oxide and titanium dioxide, 0.8-1.2% of epoxy benzophenone, 8-9% of inorganic substance microparticles and the balance of polyester resin; the particle size of zinc oxide and titanium dioxide in the mixture of zinc oxide and titanium dioxide is less than or equal to 400nm, and the mass ratio of the titanium dioxide to the zinc oxide is 1:10-1: 6; the preparation method of the mixture of the zinc oxide and the titanium dioxide comprises the following steps: respectively grinding titanium dioxide and zinc oxide into fine powder by adopting a high-energy ball milling mode, screening fine powder with the particle size of 10-50 microns, uniformly mixing the screened zinc oxide and titanium dioxide according to a ratio by adopting a nano grinder, and grinding the mixture into superfine particles with the particle size of less than or equal to 400nm to obtain a zinc oxide and titanium dioxide mixture; the inorganic micro-particles are silicon dioxide, barium sulfate and/or ferric oxide.
4. The knitted or woven fabric according to claim 1, wherein in the step (2), the temperature of the melt extrusion is 290 ℃ and 295 ℃, and the winding speed is 2600 r/min; the plate diameter of a spinneret plate in the extrusion process of the spinning assembly is 95mm, the thickness of the spinneret plate is 24mm, the aperture of the spinneret plate is 0.18mm, and spinneret orifices are arranged in a rectangular shape; the wind speed in the circular blowing cooling process is 0.3-0.4m/s, the wind humidity is 60-70%, and the temperature is 25-30 ℃; the spinning speed is 2800r/min, the spinning tension is 0.3cN/dtex, and the oiling rate of the filament bundle is 0.5-0.8%; and shredding by using a shredder, wherein the fineness of the fine denier staple fiber is 0.7-1.3 dtex.
5. The knitted fabric or woven fabric according to claim 1, wherein in the step (3), the fine denier staple fibers and the cotton are used as raw materials for spinning in the siro spinning process, and the raw materials comprise 60% -70% of cotton in the warp direction, 30% -40% of the fine denier staple fibers, 60% -70% of cotton in the weft direction and 30% -40% of the fine denier staple fibers; the fixed quantity of the roving is 3.5g/10m, the twist coefficient of the roving is 100, the drafting multiple of the rear area of the roving is 1.1, and the total drafting multiple of the roving machine is 4.5; the center distance of the bell mouth of the spun yarn is 3.0mm, the twist coefficient of the spun yarn is 360, the total drafting multiple of a spinning machine is 60 times, the speed of a front roller of the spun yarn is 115r/min, and the fineness of the spun yarn is 16-23 tex.
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Denomination of invention: A UV resistant and moisture absorbing fast drying yarn and its production process and application Effective date of registration: 20230625 Granted publication date: 20201222 Pledgee: Huzhou Bank Co.,Ltd. Wuxing Sub branch Pledgor: ZHEJIANG LANTIANHAI TEXTILE GARMENT TECHNOLOGY Co.,Ltd. Registration number: Y2023980045446 |