CN111719215A - Anti-ultraviolet and anti-bacterial fabric and preparation method thereof - Google Patents

Abstract

The invention provides an ultraviolet-proof and antibacterial fabric which is prepared by mutually and vertically interweaving warps and wefts, wherein the warps are formed by alternately combining a first warp and a second warp, and the wefts are formed by alternately combining a first weft and a second weft; the mass ratio of the first warp to the second warp is 100: 262-270; the mass ratio of the weft A to the weft B is 166:165-170, the reed number is 12 teeth/cm, the penetration number of each reed is 3 in/teeth, and the blank width is 226 cm; the total warp number is 5356, and the density of the finished product is: the warp density is 325 pieces/10 cm, and the weft density is 252 pieces/10 cm; the weave is a plain weave, and the number of the heald pages is 4 pages; the width of the finished product is 207cm, and the weight is 120 g/m. The functional yarn is used as the raw material to obtain the long-acting ultraviolet-proof and antibacterial fabric, the defect that the function of the traditional functional fabric is easy to attenuate is overcome, and the fabric has good use value and wide market prospect.

Description

Anti-ultraviolet and anti-bacterial fabric and preparation method thereof

Technical Field

The invention relates to the technical field of fabrics, in particular to an ultraviolet-proof and antibacterial fabric and a preparation method thereof.

Background

Textile fabric is a common light industrial product of daily life, in the past because the standard of living is lower, textile fabric as long as satisfy characteristics such as durable sense of touch is good can, along with the improvement of standard of living now, people tend to the diversification to textile fabric's function, also more and more high to textile fabric's functional requirement, be similar to this kind of function that is favorable to physical and mental health of antibacterial function also becomes consumer's demand, along with the improvement of consumer's safety consciousness in addition, also has required textile fabric's flame retardant property.

Polyvinyl acetal fiber is also called vinylon fiber, and has a relative density of 1.26-1.30 g/cc, a softening point of 220-230 ℃, and a softening point in water of 110 ℃; the fineness of the cotton fiber type short fiber is 1.4 deniers; the dry and wet strength is 5.4 gram force/denier and 4.3 gram force/denier respectively, the dry and wet elongation is 16.5 percent and 17.5 percent respectively, the Young modulus is 550 kilogram force/millimeter, and the elastic recovery rate (3 percent) is 70 percent; it is characterized by high strength, good toughness, good hygroscopicity, wear resistance, acid and alkali resistance, high wet strength, mildew and moth resistance, etc.; the vinylon fiber is mainly used for making clothes, and can also be used for making various cables, canvases, agricultural windproof and cold-proof gauze, etc.

Since vinylon fiber has excellent moisture absorption performance, vinylon fiber is often used for making clothes worn in summer, but summer weather is hot, ultraviolet intensity is high, and sun protection is also an important thing. However, vinylon fiber has the defects of poor elasticity, poor dyeing property and the like, and the use of the vinylon fiber is limited by the defects, and the defects cannot be changed if the vinylon fiber is used for preparing a fabric by only making yarns from the vinylon fiber.

Disclosure of Invention

The invention aims to provide an ultraviolet-proof and antibacterial fabric and a preparation method thereof, and the ultraviolet-proof and antibacterial fabric with long-acting property is obtained by reasonable organization design and weft insertion sequence, so that the defect that the function of the traditional functional fabric is easy to attenuate is overcome.

The technical scheme of the invention is realized as follows:

the invention provides an ultraviolet-proof and antibacterial fabric which is prepared by mutually and vertically interweaving warps and wefts, wherein the warps are formed by cross combination of warps A and wefts B in a 1:1 relationship, and the wefts are formed by cross combination of wefts A and wefts B in a 1:2 relationship; the mass ratio of the first warp to the second warp is 100: 262-270; the mass ratio of the weft A to the weft B is 166:165-170, the reed number is 12 teeth/cm, the penetration number of each reed is 3 in/teeth, and the blank width is 226 cm; the total warp number is 5356, and the density of the finished product is: the warp density is 325 pieces/10 cm, and the weft density is 252 pieces/10 cm; the weave is a plain weave, and the number of the heald pages is 4 pages; the warp yarns are arranged into a first 2B 1, a first 4B 1, a first 6B 1 and a first 2B 1; the width of the finished product is 207cm, and the weight is 120 g/m;

the first weft adopts antibacterial yarns; the second weft adopts low-twist composite yarn formed by twisting moisture-absorbing and sweat-releasing yarn and fine cotton fiber; the first warp adopts an anti-ultraviolet polyester fiber yarn; the second warp adopts polyester fiber yarns;

the antibacterial yarn is prepared from the following raw materials: polyvinyl alcohol, graphene oxide-silver nano-composite, chitin and plant fiber;

the anti-ultraviolet polyester fiber yarn is prepared from the following raw materials: terylene fiber and modified ZnO-TiO₂Nano powder and plant fiber;

the moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials: cotton fiber, vinylon fiber and plant fiber.

As a further improvement of the invention, the titer of the first weft is 500dtex, 700 twists/m, S twist direction; the titer of the weft B is 500dtex, 700 twists/m and Z twist direction; the titer of the first warp is 200dtex, 1700 twist/m and S twist direction; the titer of the second warp is 220dtex, 320 twists/m and Z twist direction.

As a further improvement of the invention, the antibacterial yarn is prepared from the following raw materials in parts by weight: 100-150 parts of polyvinyl alcohol, 5-10 parts of graphene oxide-silver nano compound, 30-50 parts of chitin and 20-40 parts of plant fiber;

the anti-ultraviolet polyester fiber yarn is prepared from the following raw materials in parts by weight: polyester fiber 100-200 parts modified ZnO-TiO₂3-5 parts of nano powder and 10-20 parts of plant fiber;

the moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials in parts by weight: 100-200 parts of cotton fiber, 20-50 parts of vinylon fiber and 70-100 parts of plant fiber.

As a further improvement of the invention, the antibacterial yarn is prepared from the following raw materials in parts by weight: 125 parts of polyvinyl alcohol, 7 parts of graphene oxide-silver nano compound, 40 parts of chitin and 30 parts of plant fiber;

the anti-ultraviolet polyester fiber yarn is prepared from the following raw materials in parts by weight: 150 parts of polyester fiber and modified ZnO-TiO₂4 parts of nano powder and 15 parts of plant fiber;

the moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials in parts by weight: 150 parts of cotton fibers, 35 parts of vinylon fibers and 85 parts of plant fibers.

As a further improvement of the invention, the plant fiber is selected from one or a mixture of several of wormwood fiber, mint fiber, coconut fiber, sisal fiber, castor fiber and bamboo fiber.

As a further improvement of the invention, the modified ZnO-TiO₂The nano powder is as follows:

s1, carrying silver TiO₂Preparing nano powder: adding TiO into the mixture₂Soaking the nanometer powder in ethanol solution, ultrasonically dispersing, and adding AgNO₃Solution in N₂Under the protection, carrying out photochemical deposition under the irradiation of an ultraviolet lamp to obtain the silver-loaded TiO₂Nano powder;

s2, modified ZnO-TiO₂Preparing nano powder: to carry silver TiO₂The nano powder and the ZnO nano powder are mixed according to the mass ratio of 1: (15-20), drying in vacuum for 4h at 80-100 ℃, grinding, and mixing uniformly to obtain the modified ZnO-TiO₂And (4) nano powder.

As a further improvement of the invention, the mass percent of ethanol in the ethanol solution is 10-35%, and the AgNO is₃AgNO in solution₃The mass percentage of the ultraviolet lamp is 10-20%, the ultrasonic power is 1000-2000W, the wavelength of the ultraviolet lamp is 256nm, and the irradiation time of the ultraviolet lamp is 10-30 min.

As a further improvement of the invention, the fluffing and pilling of the fabric are grade 5, the color fastness to water, washing and perspiration is grade 5, and the breaking strength is as follows: warp direction 920-: 20-25N in the warp direction and 15-17N in the weft direction; pH =7.5, formaldehyde content less than 20mg/kg, water wash size change rate: warp-0.1%, weft-0.1%.

As a further improvement of the invention, the ultraviolet transmittance of the fabric in the wavelength range of 280-380nm is less than 7 percent.

The invention further provides a preparation method of the ultraviolet-proof and antibacterial fabric, which comprises the following steps:

s1, spooling: adopting a bobbin winder to respectively bobbin the first warp, the second warp, the first weft and the second weft, applying an oil agent during winding, wherein the speed is 800-;

s2, double twisting: twisting the first warp, the second warp, the first weft and the second weft into proper twist and twisting direction by adopting a two-for-one twister;

s3, warping: warping the first warp, the second warp, the first weft and the second weft respectively by using a filament warping machine, wherein the speed is 200-220m/min, and the single yarn tension is 12-17 cN;

s4, weaving: weaving by using a sword repent weaving machine, wherein the let-off device and the coiling device synchronously move in the stop and weft finding process of the weaving machine, the rotating speed of the weaving machine is 320 plus 370r/min, the opening time is 300 degrees, and the reed number is 12 teeth/cm, so that the ultraviolet-proof and antibacterial fabric is prepared.

The invention has the following beneficial effects: the invention adopts modified ZnO-TiO₂Preparing uvioresistant polyester fiber yarn with nanometer powder in TiO₂The photocatalytic activity of the fabric can be improved by loading silver on the surface, the antibacterial performance of the fabric can be improved by silver particles, and the ultraviolet rays can be effectively filtered by ZnO nano particles, so that the ultraviolet resistance of the fabric is improved; the graphene oxide-silver nanoparticles enrich silver particles on graphene oxide at high concentration, so that the antibacterial effect of the fabric can be remarkably improved;

the invention adopts functional yarn as raw material, obtains the long-acting ultraviolet-proof and antibacterial fabric by reasonable tissue design and weft insertion sequence, and overcomes the defect that the function of the traditional functional fabric is easy to attenuate. Because the fabric reflects or shields ultraviolet rays and converts the energy of the ultraviolet rays to decompose and kill bacteria, pollutants and the like, the fabric achieves the functions of antibiosis, moisture absorption, ventilation, ultraviolet resistance and the like, has clear fabric lines, excellent drapability, good crease resistance and good elasticity, meets the requirements of people on the health, environmental protection and sanitation of the fabric of the clothes, and has good use value and wide market prospect.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, 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.

Moxa fiber, peppermint fiber, coconut fiber, and castor fiber are available from Weiyue Macro New materials, Inc., Huizhou.

Polyvinyl alcohol CAS number 9002-89-5; chitin CAS number 1398-61-4; are all commercially available chemicals.

Polyester fibers with a thickness of 100D, cotton fibers, 150D, vinylon fibers, and 120D were purchased from Suzhou Yuweisi textile fibers, Inc.

Preparation method and application of CN2012102954161A graphene oxide silver particle nano-composite. graphene oxide-silver nanocomposite

Example 1 ultraviolet-proof and antibacterial fabric

The ultraviolet-proof and antibacterial fabric is prepared by vertically interweaving warps and wefts, wherein the warps are formed by cross combination of warps A and wefts B in a 1:1 relationship, and the wefts are formed by cross combination of wefts A and wefts B in a 1:2 relationship; the mass ratio of the warps A to the warps B is 100: 262; the mass ratio of the weft A to the weft B is 166:165, the reed number is 12 teeth/cm, the penetration number of each reed is 3 in/teeth, and the blank width is 226 cm; the total warp number is 5356, and the density of the finished product is: the warp density is 325 pieces/10 cm, and the weft density is 252 pieces/10 cm; the weave is a plain weave, and the number of the heald pages is 4 pages; the warp yarns are arranged into a first 2B 1, a first 4B 1, a first 6B 1 and a first 2B 1; the width of the finished product is 207cm, and the weight is 120 g/m;

the first weft adopts antibacterial yarns; the second weft adopts low-twist composite yarn formed by twisting moisture-absorbing and sweat-releasing yarn and fine cotton fiber; the first warp adopts an anti-ultraviolet polyester fiber yarn; the second warp adopts polyester fiber yarns;

the titer of the first weft is 500dtex, 700 twists/m and S twist direction; the titer of the weft B is 500dtex, 700 twists/m and Z twist direction; the titer of the first warp is 200dtex, 1700 twist/m and S twist direction; the titer of the second warp is 220dtex, 320 twists/m and Z twist direction.

The antibacterial yarn is prepared from the following raw materials in parts by weight: 100 parts of polyvinyl alcohol, 5 parts of graphene oxide-silver nano composite, 30 parts of chitin and 20 parts of mint fiber.

The anti-ultraviolet polyester fiber yarn is prepared from the following raw materials in parts by weight: 100 parts of polyester fiber and modified ZnO-TiO₂3 parts of nano powder and 10 parts of castor fiber.

Modified ZnO-TiO₂The nano powder is as follows:

s1, carrying silver TiO₂Preparing nano powder: adding TiO into the mixture₂Soaking the nanometer powder in ethanol solution (ethanol content of 10 wt%), ultrasonically dispersing uniformly with ultrasonic power of 1000W, and adding AgNO₃Solution (AgNO)₃In 10% by mass) in N₂Under protection, carrying out photochemical deposition under the irradiation of an ultraviolet lamp with the wavelength of 256nm for 10min to obtain the silver-loaded TiO₂Nano powder;

s2, modified ZnO-TiO₂Preparing nano powder: to carry silver TiO₂The nano powder and the ZnO nano powder are mixed according to the mass ratio of 1: 15, drying for 4 hours in vacuum at 80 ℃, grinding and uniformly mixing to obtain the modified ZnO-TiO₂And (4) nano powder.

The moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials in parts by weight: 100 parts of cotton fiber, 20 parts of vinylon fiber and 70 parts of castor fiber.

The fiber protofilament of the antibacterial yarn, the ultraviolet-resistant polyester fiber yarn and the moisture-absorbing sweat-releasing yarn is prepared by the following method:

mixing and heating the raw materials to be molten to obtain spinning stock solution, conveying the spinning stock solution to a spinning machine, extruding the spinning stock solution through a spinning nozzle, forming the spinning stock solution in saturated sodium sulfate aqueous solution solidification solution, and then stretching and oiling the spinning stock solution to obtain fiber precursor; the aperture of the spinneret is 0.07 mm.

The preparation method comprises the following steps:

s1, spooling: adopting a bobbin winder to respectively perform bobbin winding on the first warp, the second warp, the first weft and the second weft, applying an oil agent during winding, wherein the speed is 800r/min, and the winding tension is 30 cN;

s2, double twisting: twisting the first warp, the second warp, the first weft and the second weft into proper twist and twisting direction by adopting a two-for-one twister;

s3, warping: warping the first warp, the second warp, the first weft and the second weft respectively by using a filament warping machine, wherein the speed is 200m/min, and the single yarn tension is 12 cN;

s4, weaving: weaving by using a sword repent weaving machine, wherein the let-off device and the coiling device synchronously move during the stop and weft finding process of the weaving machine, the rotating speed of the weaving machine is 320r/min, the opening time is 300 degrees, and the reed wire number is 12 teeth/cm, so that the ultraviolet-proof and antibacterial fabric is prepared.

Example 2 ultraviolet-proof and antibacterial fabric

The ultraviolet-proof and antibacterial fabric is prepared by vertically interweaving warps and wefts, wherein the warps are formed by cross combination of warps A and wefts B in a 1:1 relationship, and the wefts are formed by cross combination of wefts A and wefts B in a 1:2 relationship; the mass ratio of the warps A to the warps B is 100: 270; the mass ratio of the weft A to the weft B is 166:170, the reed number is 12 teeth/cm, the penetration number of each reed is 3 in/teeth, and the blank width is 226 cm; the total warp number is 5356, and the density of the finished product is: the warp density is 325 pieces/10 cm, and the weft density is 252 pieces/10 cm; the weave is a plain weave, and the number of the heald pages is 4 pages; the warp yarns are arranged into a first 2B 1, a first 4B 1, a first 6B 1 and a first 2B 1; the width of the finished product is 207cm, and the weight is 120 g/m;

the first weft adopts antibacterial yarns; the second weft adopts low-twist composite yarn formed by twisting moisture-absorbing and sweat-releasing yarn and fine cotton fiber; the first warp adopts an anti-ultraviolet polyester fiber yarn; the second warp adopts polyester fiber yarns;

the titer of the first weft is 500dtex, 700 twists/m and S twist direction; the titer of the weft B is 500dtex, 700 twists/m and Z twist direction; the titer of the first warp is 200dtex, 1700 twist/m and S twist direction; the titer of the second warp is 220dtex, 320 twists/m and Z twist direction.

The antibacterial yarn is prepared from the following raw materials in parts by weight: 150 parts of polyvinyl alcohol, 10 parts of graphene oxide-silver nano compound, 50 parts of chitin and 40 parts of mint fiber.

The anti-ultraviolet polyester fiber yarn is prepared from the following raw materials in parts by weight: polyester fiber 200 parts and modified ZnO-TiO₂5 parts of nano powder and 20 parts of wormwood fiber.

Modified ZnO-TiO₂The nano powder is as follows:

s1, carrying silver TiO₂Preparing nano powder: adding TiO into the mixture₂Soaking the nanometer powder in ethanol solution (35 wt% of ethanol), ultrasonically dispersing uniformly with ultrasonic power of 2000W, and adding AgNO₃Solution (AgNO)₃20% by mass) in N₂Under protection, carrying out photochemical deposition under the irradiation of an ultraviolet lamp with the wavelength of 256nm for 30min to obtain the silver-loaded TiO₂Nano powder;

s2, modified ZnO-TiO₂Preparing nano powder: to carry silver TiO₂The nano powder and the ZnO nano powder are mixed according to the mass ratio of 1: 20, drying in vacuum at 100 ℃ for 4h, grinding, and mixing uniformly to obtain the modified ZnO-TiO₂And (4) nano powder.

The moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials in parts by weight: 200 parts of cotton fiber, 50 parts of vinylon fiber and 100 parts of coconut shell fiber.

The fiber protofilament of the antibacterial yarn, the ultraviolet-resistant polyester fiber yarn and the moisture-absorbing sweat-releasing yarn is prepared by the following method:

mixing and heating the raw materials to be molten to obtain spinning stock solution, conveying the spinning stock solution to a spinning machine, extruding the spinning stock solution through a spinning nozzle, forming the spinning stock solution in saturated sodium sulfate aqueous solution solidification solution, and then stretching and oiling the spinning stock solution to obtain fiber precursor; the aperture of the spinneret is 0.07 mm.

The preparation method comprises the following steps:

s1, spooling: adopting a bobbin winder to respectively perform bobbin winding on the first warp, the second warp, the first weft and the second weft, applying an oil agent during winding, wherein the speed is 1000r/min, and the winding tension is 50 cN;

s2, double twisting: twisting the first warp, the second warp, the first weft and the second weft into proper twist and twisting direction by adopting a two-for-one twister;

s3, warping: warping the first warp, the second warp, the first weft and the second weft respectively by using a filament warping machine, wherein the speed is 220m/min, and the single yarn tension is 17 cN;

s4, weaving: weaving by using a sword repent weaving machine, wherein the let-off device and the coiling device synchronously move during the stop and weft finding process of the weaving machine, the rotating speed of the weaving machine is 370r/min, the opening time is 300 degrees, and the reed wire number is 12 teeth/cm, so that the ultraviolet-proof and antibacterial fabric is prepared.

Example 3 ultraviolet-proof and antibacterial fabric

The ultraviolet-proof and antibacterial fabric is prepared by vertically interweaving warps and wefts, wherein the warps are formed by cross combination of warps A and wefts B in a 1:1 relationship, and the wefts are formed by cross combination of wefts A and wefts B in a 1:2 relationship; the mass ratio of the warps A to the warps B is 100: 267; the mass ratio of the weft A to the weft B is 166:167, the reed number is 12 teeth/cm, the penetration number of each reed is 3 in/teeth, and the blank width is 226 cm; the total warp number is 5356, and the density of the finished product is: the warp density is 325 pieces/10 cm, and the weft density is 252 pieces/10 cm; the weave is a plain weave, and the number of the heald pages is 4 pages; the warp yarns are arranged into a first 2B 1, a first 4B 1, a first 6B 1 and a first 2B 1; the width of the finished product is 207cm, and the weight is 120 g/m;

the first weft adopts antibacterial yarns; the second weft adopts low-twist composite yarn formed by twisting moisture-absorbing and sweat-releasing yarn and fine cotton fiber; the first warp adopts an anti-ultraviolet polyester fiber yarn; the second warp adopts polyester fiber yarns;

the titer of the first weft is 500dtex, 700 twists/m and S twist direction; the titer of the weft B is 500dtex, 700 twists/m and Z twist direction; the titer of the first warp is 200dtex, 1700 twist/m and S twist direction; the titer of the second warp is 220dtex, 320 twists/m and Z twist direction.

The antibacterial yarn is prepared from the following raw materials in parts by weight: 125 parts of polyvinyl alcohol, 7 parts of graphene oxide-silver nano compound, 40 parts of chitin and 30 parts of wormwood fiber.

The anti-ultraviolet polyester fiber yarn is prepared from the following raw materials in parts by weight: 150 parts of polyester fiber and modified ZnO-TiO₂4 parts of nano powder and 15 parts of mint fiber.

Modified ZnO-TiO₂The nano powder is as follows:

s1, carrying silver TiO₂Preparing nano powder: adding TiO into the mixture₂Soaking the nanometer powder in ethanol solution (25 wt% of ethanol), ultrasonically dispersing uniformly with ultrasonic power of 1000-₃Solution (AgNO)₃15% by mass) in N₂Under protection, carrying out photochemical deposition under the irradiation of an ultraviolet lamp with the wavelength of 256nm for 10-30min to obtain the silver-loaded TiO₂Nano powder;

s2, modified ZnO-TiO₂Preparing nano powder: to carry silver TiO₂The nano powder and the ZnO nano powder are mixed according to the mass ratio of 1: 17, drying in vacuum at 90 ℃ for 4h, grinding, and mixing uniformly to obtain the modified ZnO-TiO₂And (4) nano powder.

The moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials in parts by weight: 150 parts of cotton fibers, 35 parts of vinylon fibers and 85 parts of wormwood fibers.

The fiber protofilament of the antibacterial yarn, the ultraviolet-resistant polyester fiber yarn and the moisture-absorbing sweat-releasing yarn is prepared by the following method:

mixing and heating the raw materials to be molten to obtain spinning stock solution, conveying the spinning stock solution to a spinning machine, extruding the spinning stock solution through a spinning nozzle, forming the spinning stock solution in saturated sodium sulfate aqueous solution solidification solution, and then stretching and oiling the spinning stock solution to obtain fiber precursor; the aperture of the spinneret is 0.07 mm.

The preparation method comprises the following steps:

s1, spooling: adopting a bobbin winder to respectively perform bobbin winding on the first warp, the second warp, the first weft and the second weft, applying an oil agent during winding, wherein the speed is 900r/min, and the winding tension is 40 cN;

s2, double twisting: twisting the first warp, the second warp, the first weft and the second weft into proper twist and twisting direction by adopting a two-for-one twister;

s3, warping: warping the first warp, the second warp, the first weft and the second weft respectively by using a filament warping machine, wherein the speed is 210m/min, and the single yarn tension is 15 cN;

s4, weaving: weaving by using a sword repent weaving machine, wherein the let-off device and the coiling device synchronously move during the stop and weft finding process of the weaving machine, the rotating speed of the weaving machine is 350r/min, the opening time is 300 degrees, and the reed wire number is 12 teeth/cm, so that the ultraviolet-proof and antibacterial fabric is prepared.

Comparative example 1

Compared with example 3, the graphene oxide-silver nanocomposite is not added into the antibacterial yarn, and other conditions are not changed.

The ultraviolet-proof and antibacterial fabric is prepared by vertically interweaving warps and wefts, wherein the warps are formed by cross combination of warps A and wefts B in a 1:1 relationship, and the wefts are formed by cross combination of wefts A and wefts B in a 1:2 relationship; the mass ratio of the warps A to the warps B is 100: 267; the mass ratio of the weft A to the weft B is 166:167, the reed number is 12 teeth/cm, the penetration number of each reed is 3 in/teeth, and the blank width is 226 cm; the total warp number is 5356, and the density of the finished product is: the warp density is 325 pieces/10 cm, and the weft density is 252 pieces/10 cm; the weave is a plain weave, and the number of the heald pages is 4 pages; the warp yarns are arranged into a first 2B 1, a first 4B 1, a first 6B 1 and a first 2B 1; the width of the finished product is 207cm, and the weight is 120 g/m;

the first weft adopts antibacterial yarns; the second weft adopts low-twist composite yarn formed by twisting moisture-absorbing and sweat-releasing yarn and fine cotton fiber; the first warp adopts an anti-ultraviolet polyester fiber yarn; the second warp adopts polyester fiber yarns;

the titer of the first weft is 500dtex, 700 twists/m and S twist direction; the titer of the weft B is 500dtex, 700 twists/m and Z twist direction; the titer of the first warp is 200dtex, 1700 twist/m and S twist direction; the titer of the second warp is 220dtex, 320 twists/m and Z twist direction.

The antibacterial yarn is prepared from the following raw materials in parts by weight: 125 parts of polyvinyl alcohol, 47 parts of chitin and 30 parts of wormwood fiber.

The anti-ultraviolet polyester fiber yarn is prepared from the following raw materials in parts by weight: 150 parts of polyester fiber and modified ZnO-TiO₂4 parts of nano powder and 15 parts of mint fiber.

Modified ZnO-TiO₂The nano powder is as follows:

s1, carrying silver TiO₂Preparing nano powder: adding TiO into the mixture₂Soaking the nanometer powder in ethanol solution (25 wt% of ethanol), and ultrasonically dispersing uniformlyThe sound power is 1000-2000W, and AgNO is added₃Solution (AgNO)₃15% by mass) in N₂Under protection, carrying out photochemical deposition under the irradiation of an ultraviolet lamp with the wavelength of 256nm for 10-30min to obtain the silver-loaded TiO₂Nano powder;

s2, modified ZnO-TiO₂Preparing nano powder: to carry silver TiO₂The nano powder and the ZnO nano powder are mixed according to the mass ratio of 1: 17, drying in vacuum at 90 ℃ for 4h, grinding, and mixing uniformly to obtain the modified ZnO-TiO₂And (4) nano powder.

The moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials in parts by weight: 150 parts of cotton fibers, 35 parts of vinylon fibers and 85 parts of wormwood fibers.

The fiber protofilament of the antibacterial yarn, the ultraviolet-resistant polyester fiber yarn and the moisture-absorbing sweat-releasing yarn is prepared by the following method:

mixing and heating the raw materials to be molten to obtain spinning stock solution, conveying the spinning stock solution to a spinning machine, extruding the spinning stock solution through a spinning nozzle, forming the spinning stock solution in saturated sodium sulfate aqueous solution solidification solution, and then stretching and oiling the spinning stock solution to obtain fiber precursor; the aperture of the spinneret is 0.07 mm.

The preparation method comprises the following steps:

s1, spooling: adopting a bobbin winder to respectively perform bobbin winding on the first warp, the second warp, the first weft and the second weft, applying an oil agent during winding, wherein the speed is 900r/min, and the winding tension is 40 cN;

s2, double twisting: twisting the first warp, the second warp, the first weft and the second weft into proper twist and twisting direction by adopting a two-for-one twister;

s3, warping: warping the first warp, the second warp, the first weft and the second weft respectively by using a filament warping machine, wherein the speed is 210m/min, and the single yarn tension is 15 cN;

s4, weaving: weaving by using a sword repent weaving machine, wherein the let-off device and the coiling device synchronously move during the stop and weft finding process of the weaving machine, the rotating speed of the weaving machine is 350r/min, the opening time is 300 degrees, and the reed wire number is 12 teeth/cm, so that the ultraviolet-proof and antibacterial fabric is prepared.

Comparative example 2

Compared with the embodiment 3, the chitin is not added into the antibacterial yarn, and other conditions are not changed.

The ultraviolet-proof and antibacterial fabric is prepared by vertically interweaving warps and wefts, wherein the warps are formed by cross combination of warps A and wefts B in a 1:1 relationship, and the wefts are formed by cross combination of wefts A and wefts B in a 1:2 relationship; the mass ratio of the warps A to the warps B is 100: 267; the mass ratio of the weft A to the weft B is 166:167, the reed number is 12 teeth/cm, the penetration number of each reed is 3 in/teeth, and the blank width is 226 cm; the total warp number is 5356, and the density of the finished product is: the warp density is 325 pieces/10 cm, and the weft density is 252 pieces/10 cm; the weave is a plain weave, and the number of the heald pages is 4 pages; the warp yarns are arranged into a first 2B 1, a first 4B 1, a first 6B 1 and a first 2B 1; the width of the finished product is 207cm, and the weight is 120 g/m;

the first weft adopts antibacterial yarns; the second weft adopts low-twist composite yarn formed by twisting moisture-absorbing and sweat-releasing yarn and fine cotton fiber; the first warp adopts an anti-ultraviolet polyester fiber yarn; the second warp adopts polyester fiber yarns;

the titer of the first weft is 500dtex, 700 twists/m and S twist direction; the titer of the weft B is 500dtex, 700 twists/m and Z twist direction; the titer of the first warp is 200dtex, 1700 twist/m and S twist direction; the titer of the second warp is 220dtex, 320 twists/m and Z twist direction.

The antibacterial yarn is prepared from the following raw materials in parts by weight: 125 parts of polyvinyl alcohol, 47 parts of graphene oxide-silver nano composite and 30 parts of wormwood fiber.

The anti-ultraviolet polyester fiber yarn is prepared from the following raw materials in parts by weight: 150 parts of polyester fiber and modified ZnO-TiO₂4 parts of nano powder and 15 parts of mint fiber.

Modified ZnO-TiO₂The nano powder is as follows:

s1, carrying silver TiO₂Preparing nano powder: adding TiO into the mixture₂Soaking the nanometer powder in ethanol solution (25 wt% of ethanol), ultrasonically dispersing uniformly with ultrasonic power of 1000-₃Solution (AgNO)₃15% by mass) in N₂Under protection, carrying out photochemical deposition under the irradiation of an ultraviolet lamp with the wavelength of 256nm for 10-30min to obtain the silver-loaded TiO₂Nano powder;

s2, modified ZnO-TiO₂Preparing nano powder: to carry silver TiO₂The nano powder and the ZnO nano powder are mixed according to the mass ratio of 1: 17, drying in vacuum at 90 ℃ for 4h, grinding, and mixing uniformly to obtain the modified ZnO-TiO₂And (4) nano powder.

The moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials in parts by weight: 150 parts of cotton fibers, 35 parts of vinylon fibers and 85 parts of wormwood fibers.

The fiber protofilament of the antibacterial yarn, the ultraviolet-resistant polyester fiber yarn and the moisture-absorbing sweat-releasing yarn is prepared by the following method:

mixing and heating the raw materials to be molten to obtain spinning stock solution, conveying the spinning stock solution to a spinning machine, extruding the spinning stock solution through a spinning nozzle, forming the spinning stock solution in saturated sodium sulfate aqueous solution solidification solution, and then stretching and oiling the spinning stock solution to obtain fiber precursor; the aperture of the spinneret is 0.07 mm.

The preparation method comprises the following steps:

s1, spooling: adopting a bobbin winder to respectively perform bobbin winding on the first warp, the second warp, the first weft and the second weft, applying an oil agent during winding, wherein the speed is 900r/min, and the winding tension is 40 cN;

s2, double twisting: twisting the first warp, the second warp, the first weft and the second weft into proper twist and twisting direction by adopting a two-for-one twister;

s3, warping: warping the first warp, the second warp, the first weft and the second weft respectively by using a filament warping machine, wherein the speed is 210m/min, and the single yarn tension is 15 cN;

s4, weaving: weaving by using a sword repent weaving machine, wherein the let-off device and the coiling device synchronously move during the stop and weft finding process of the weaving machine, the rotating speed of the weaving machine is 350r/min, the opening time is 300 degrees, and the reed wire number is 12 teeth/cm, so that the ultraviolet-proof and antibacterial fabric is prepared.

Comparative example 3

Compared with the example 3, the ultraviolet resistant polyester fiber yarn is not added with modified ZnO-TiO₂Nano powder and other conditions are not changed.

The ultraviolet-proof and antibacterial fabric is prepared by vertically interweaving warps and wefts, wherein the warps are formed by cross combination of warps A and wefts B in a 1:1 relationship, and the wefts are formed by cross combination of wefts A and wefts B in a 1:2 relationship; the mass ratio of the warps A to the warps B is 100: 267; the mass ratio of the weft A to the weft B is 166:167, the reed number is 12 teeth/cm, the penetration number of each reed is 3 in/teeth, and the blank width is 226 cm; the total warp number is 5356, and the density of the finished product is: the warp density is 325 pieces/10 cm, and the weft density is 252 pieces/10 cm; the weave is a plain weave, and the number of the heald pages is 4 pages; the warp yarns are arranged into a first 2B 1, a first 4B 1, a first 6B 1 and a first 2B 1; the width of the finished product is 207cm, and the weight is 120 g/m;

the first weft adopts antibacterial yarns; the second weft adopts low-twist composite yarn formed by twisting moisture-absorbing and sweat-releasing yarn and fine cotton fiber; the first warp adopts an anti-ultraviolet polyester fiber yarn; the second warp adopts polyester fiber yarns;

the titer of the first weft is 500dtex, 700 twists/m and S twist direction; the titer of the weft B is 500dtex, 700 twists/m and Z twist direction; the titer of the first warp is 200dtex, 1700 twist/m and S twist direction; the titer of the second warp is 220dtex, 320 twists/m and Z twist direction.

The antibacterial yarn is prepared from the following raw materials in parts by weight: 125 parts of polyvinyl alcohol, 7 parts of graphene oxide-silver nano compound, 40 parts of chitin and 30 parts of wormwood fiber.

The anti-ultraviolet polyester fiber yarn is prepared from the following raw materials in parts by weight: 150 parts of polyester fiber and 15 parts of mint fiber.

The moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials in parts by weight: 150 parts of cotton fibers, 35 parts of vinylon fibers and 85 parts of wormwood fibers.

The fiber protofilament of the antibacterial yarn, the ultraviolet-resistant polyester fiber yarn and the moisture-absorbing sweat-releasing yarn is prepared by the following method:

mixing and heating the raw materials to be molten to obtain spinning stock solution, conveying the spinning stock solution to a spinning machine, extruding the spinning stock solution through a spinning nozzle, forming the spinning stock solution in saturated sodium sulfate aqueous solution solidification solution, and then stretching and oiling the spinning stock solution to obtain fiber precursor; the aperture of the spinneret is 0.07 mm.

The preparation method comprises the following steps:

s1, spooling: adopting a bobbin winder to respectively perform bobbin winding on the first warp, the second warp, the first weft and the second weft, applying an oil agent during winding, wherein the speed is 900r/min, and the winding tension is 40 cN;

s2, double twisting: twisting the first warp, the second warp, the first weft and the second weft into proper twist and twisting direction by adopting a two-for-one twister;

s3, warping: warping the first warp, the second warp, the first weft and the second weft respectively by using a filament warping machine, wherein the speed is 210m/min, and the single yarn tension is 15 cN;

s4, weaving: weaving by using a sword repent weaving machine, wherein the let-off device and the coiling device synchronously move during the stop and weft finding process of the weaving machine, the rotating speed of the weaving machine is 350r/min, the opening time is 300 degrees, and the reed wire number is 12 teeth/cm, so that the ultraviolet-proof and antibacterial fabric is prepared.

Test example 1 Performance test

The ultraviolet-proof and antibacterial fabrics prepared in examples 1-3 and comparative examples 1-3 and the commercially available fabrics are subjected to performance tests, the results are shown in tables 1 and 2, and the fracture strength, the tearing strength, the washing size change rate and the fabric fuzzing and pilling are detected according to the technical requirement method of GB/T21295-; the formaldehyde content, pH, water color fastness, wash color fastness, perspiration color fastness and rubbing color fastness were tested according to the provisions of GB 18401-.

TABLE 1

TABLE 2

As can be seen from the above table, the fabrics produced by the process of the present invention have better properties than the commercial products and the comparative examples. The prepared fabric has 5-grade fluffing and pilling, 5-grade color fastness to water, washing and perspiration, and breaking strength: warp direction 920-: 20-25N in the warp direction and 15-17N in the weft direction; pH =7.5, formaldehyde content less than 20mg/kg, water wash size change rate: warp-0.1%, weft-0.1%.

Test example 2 evaluation of ultraviolet ray resistance Using ultraviolet ray transmittance

The evaluation method comprises the following steps: under certain conditions, whether the fabric is worn to avoid damage to the skin by ultraviolet light is mainly to see whether the ultraviolet transmittance of the fabric is lower than the upper limit of the allowable transmittance. It can be calculated from the following equation:

the upper uv transmittance limit = (average minimum erythema dose x safety factor in the area) ÷ (uv radiation versus exposure over a certain period of time x exposure time) is allowed.

The evaluation method is related to the mean MED (minimal erythemal dose) of the human population, in yellow (MED =70 kJ/m)²) Solar light at 40% north latitude at noon in summer (ultraviolet intensity of 200 kJ/m)²H), after 5 hours of activity, the postural influence rate is 0.6, the uv acceptable transmittance should not exceed the critical value Tc (Tc =9.3%), so the uv transmittance should be less than 10%.

The uv-blocking and antibacterial fabrics obtained in examples 1 to 3 and comparative examples 1 to 3 and commercially available uv-blocking fabrics were subjected to uv transmittance evaluation, and the results are shown in table 3.

TABLE 3

From the test results of the ultraviolet transmittance of the fabric, it can be seen that the ultraviolet transmittance of the fabric is less than 7% in the wavelength range of 280 plus 380nm, so that the fabric can be judged to have better ultraviolet resistance, and clothes made of the fabric worn in summer can effectively prevent sunlight and avoid the damage of ultraviolet rays to the skin.

Test example 3 antibacterial and anti-mite Performance test

The face fabrics obtained in examples 1-3 and comparative examples 1-3 and the face fabrics available on the market were tested by the shaking method (GB/T20944.3-2008). The results are shown in Table 4.

TABLE 4

The fabrics prepared in examples 1-3 and comparative examples 1-3 and the fabrics sold in the market are subjected to an anti-mite test, the test indexes are according to the national standard GBT24253-2009, and the results are shown in Table 5.

TABLE 5

The antibacterial and anti-mite performance of the fabric produced by the invention is better than that of the selected commercially available fabric and the comparative example. Compared with the embodiment 3, the comparative examples 1 and 2 are not added with the graphene oxide-silver nano compound or the chitin respectively, the antibacterial and anti-mite performances of the composite are obviously reduced, and the graphene oxide-silver nano compound and the chitin not only have good antibacterial performance, but also have a synergistic effect when being added. The graphene oxide-silver nano composite is an inorganic antibacterial agent, Ag⁺Can strongly bind to sulfhydryl of enzyme protein to inactivate enzyme, due to Ag⁺Unsaturated coordination ability and N or O on the surface of the thallus act to destroy the active structure on the surface of the thallus, so that the thallus is dead due to physiological change or movement obstruction, chitin is animal-derived antibiotic, and-NH in chitin molecules³⁺The cell wall has positive electricity and is adsorbed on the surface of a cell, so that a layer of polymer membrane can be formed on one hand to prevent nutrient substances from being transported into the cell, and on the other hand, negative charges on the cell wall and the cell membrane are unevenly distributed to destroy the synthesis and dissolution balance of the cell wall and dissolve the cell wall, thereby playing a role in bacteriostasis and sterilization; the other is to kill bacteria by permeating into cells, adsorbing substances with anions in the cells and disturbing normal physiological activities of the cells.

Compared with the prior art, the invention adopts the modified ZnO-TiO₂Preparing uvioresistant polyester fiber yarn with nanometer powder in TiO₂The photocatalytic activity of the fabric can be improved by loading silver on the surface, the antibacterial performance of the fabric can be improved by silver particles, and the ultraviolet rays can be effectively filtered by ZnO nano particles, so that the ultraviolet resistance of the fabric is improved; the graphene oxide-silver nanoparticles enrich silver particles on graphene oxide at high concentration, so that the antibacterial effect of the fabric can be remarkably improved;

the invention adopts functional yarn as raw material, obtains the long-acting ultraviolet-proof and antibacterial fabric by reasonable tissue design and weft insertion sequence, and overcomes the defect that the function of the traditional functional fabric is easy to attenuate. Because the fabric reflects or shields ultraviolet rays and converts the energy of the ultraviolet rays to decompose and kill bacteria, pollutants and the like, the fabric achieves the functions of antibiosis, moisture absorption, ventilation, ultraviolet resistance and the like, has clear fabric lines, excellent drapability, good crease resistance and good elasticity, meets the requirements of people on the health, environmental protection and sanitation of the fabric of the clothes, and has good use value and wide market prospect.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The ultraviolet-proof and antibacterial fabric is prepared by mutually and vertically interweaving warps and wefts, and is characterized in that the warps are formed by the crossed combination of warps A and wefts B in a 1:1 relationship, and the wefts are formed by the crossed combination of wefts A and wefts B in a 1:2 relationship; the mass ratio of the first warp to the second warp is 100: 262-270; the mass ratio of the weft A to the weft B is 166:165-170, the reed number is 12 teeth/cm, the penetration number of each reed is 3 in/teeth, and the blank width is 226 cm; the total warp number is 5356, and the density of the finished product is: the warp density is 325 pieces/10 cm, and the weft density is 252 pieces/10 cm; the weave is a plain weave, and the number of the heald pages is 4 pages; the warp yarns are arranged into a first 2B 1, a first 4B 1, a first 6B 1 and a first 2B 1; the width of the finished product is 207cm, and the weight is 120 g/m;

the first weft adopts antibacterial yarns; the second weft adopts low-twist composite yarn formed by twisting moisture-absorbing and sweat-releasing yarn and fine cotton fiber; the first warp adopts an anti-ultraviolet polyester fiber yarn; the second warp adopts polyester fiber yarns;

the antibacterial yarn is prepared from the following raw materials: polyvinyl alcohol, graphene oxide-silver nano-composite, chitin and plant fiber;

the anti-ultraviolet polyester fiber yarn is prepared from the following raw materials: polyester fiber,Modified ZnO-TiO₂Nano powder and plant fiber;

the moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials: cotton fiber, polyester fiber and plant fiber.

2. The ultraviolet-proof and antibacterial fabric according to claim 1, wherein the titer of the first weft is 500dtex, 700 twists/m, S twist direction; the titer of the weft B is 500dtex, 700 twists/m and Z twist direction; the titer of the first warp is 200dtex, 1700 twist/m and S twist direction; the titer of the second warp is 220dtex, 320 twists/m and Z twist direction.

3. The ultraviolet-proof and antibacterial fabric according to claim 1, wherein the antibacterial yarns are prepared from the following raw materials in parts by weight: 100-150 parts of polyvinyl alcohol, 5-10 parts of graphene oxide-silver nano compound, 30-50 parts of chitin and 20-40 parts of plant fiber;

the anti-ultraviolet polyester fiber yarn is prepared from the following raw materials in parts by weight: polyester fiber 100-200 parts modified ZnO-TiO₂3-5 parts of nano powder and 10-20 parts of plant fiber;

the moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials in parts by weight: 100-200 parts of cotton fiber, 20-50 parts of vinylon fiber and 70-100 parts of plant fiber.

4. The ultraviolet-proof and antibacterial fabric according to claim 3, wherein the antibacterial yarns are prepared from the following raw materials in parts by weight: 125 parts of polyvinyl alcohol, 7 parts of graphene oxide-silver nano compound, 40 parts of chitin and 30 parts of plant fiber;

the anti-ultraviolet polyester fiber yarn is prepared from the following raw materials in parts by weight: 150 parts of polyester fiber and modified ZnO-TiO₂4 parts of nano powder and 15 parts of plant fiber;

the moisture-absorbing and sweat-releasing yarn is prepared from the following raw materials in parts by weight: 150 parts of cotton fibers, 35 parts of vinylon fibers and 85 parts of plant fibers.

5. The ultraviolet-proof and antibacterial fabric according to claim 1, wherein the plant fiber is one or a mixture of several of wormwood fiber, mint fiber, coconut fiber, sisal fiber, castor fiber and bamboo fiber.

6. The ultraviolet-proof and antibacterial fabric according to claim 1, wherein the modified ZnO-TiO is₂The nano powder is as follows:

s1, carrying silver TiO₂Preparing nano powder: adding TiO into the mixture₂Soaking the nanometer powder in ethanol solution, ultrasonically dispersing, and adding AgNO₃Solution in N₂Under the protection, carrying out photochemical deposition under the irradiation of an ultraviolet lamp to obtain the silver-loaded TiO₂Nano powder;

s2, modified ZnO-TiO₂Preparing nano powder: to carry silver TiO₂The nano powder and the ZnO nano powder are mixed according to the mass ratio of 1: (15-20), drying in vacuum for 4h at 80-100 ℃, grinding, and mixing uniformly to obtain the modified ZnO-TiO₂And (4) nano powder.

7. The ultraviolet-proof and antibacterial fabric according to claim 6, wherein the ethanol solution contains 10-35% by mass of ethanol, and the AgNO is₃AgNO in solution₃The mass percentage of the ultraviolet lamp is 10-20%, the ultrasonic power is 1000-2000W, the wavelength of the ultraviolet lamp is 256nm, and the irradiation time of the ultraviolet lamp is 10-30 min.

8. The ultraviolet-proof and antibacterial fabric as claimed in claim 1, wherein the fabric has a fuzzing and pilling grade of 5, a water, wash and sweat stain fastness grade of 5, a breaking strength: warp direction 920-: 20-25N in the warp direction and 15-17N in the weft direction; pH =7.5, formaldehyde content less than 20mg/kg, water wash size change rate: warp-0.1%, weft-0.1%.

9. The ultraviolet-proof and antibacterial fabric as claimed in claim 1, wherein the ultraviolet transmittance of the fabric in the wavelength range of 280-380nm is less than 7%.

10. A method for preparing the ultraviolet-proof and antibacterial fabric as claimed in any one of claims 1 to 9, which is characterized by comprising the following steps:

s1, spooling: adopting a bobbin winder to respectively bobbin the first warp, the second warp, the first weft and the second weft, applying an oil agent during winding, wherein the speed is 800-;

s2, double twisting: twisting the first warp, the second warp, the first weft and the second weft into proper twist and twisting direction by adopting a two-for-one twister;

s3, warping: warping the first warp, the second warp, the first weft and the second weft respectively by using a filament warping machine, wherein the speed is 200-220m/min, and the single yarn tension is 12-17 cN;

s4, weaving: weaving by using a sword repent weaving machine, wherein the let-off device and the coiling device synchronously move in the stop and weft finding process of the weaving machine, the rotating speed of the weaving machine is 320 plus 370r/min, the opening time is 300 degrees, and the reed number is 12 teeth/cm, so that the ultraviolet-proof and antibacterial fabric is prepared.