阅读说明：本技术 一种抗紫外线面料的制备方法和抗紫外线面料 (Preparation method of ultraviolet-resistant fabric and ultraviolet-resistant fabric ) 是由 吴兴群 刘红菲 蓝舟 蒋毅梅 于 2019-10-09 设计创作，主要内容包括：本发明属于材料领域,公开一种抗紫外线面料的制备方法和抗紫外线面料,紫外线黑体吸收层右端设置有镜面反射层,紫外线黑体吸收层和镜面反射层外侧包裹有外包层；外包层设置有驱蚊香料层和吸汗排湿层,其中,吸汗排湿层位于外包层的外侧。本发明设置有三层防护,提高了防紫外线效果。本发明中吸汗排湿层采用纯棉和聚酯纤维编织组成,可以使整体面料既具有棉舒适吸汗等特点,又有聚酯纤维的挺括,快洗易干；同时提高整体面料的保形性好。同时本发明中镜面反射层的制作方法可以使铝箔反光微珠紧贴在基面上,可以增大整体面料的反光强度和反光角度,从而提高整体面料防紫外线的效果。(The invention belongs to the field of materials, and discloses a preparation method of an ultraviolet-resistant fabric and the ultraviolet-resistant fabric, wherein a mirror reflection layer is arranged at the right end of an ultraviolet black body absorption layer, and an outer cladding layer is wrapped outside the ultraviolet black body absorption layer and the mirror reflection layer; the outer cladding is provided with a mosquito repellent perfume layer and a sweat absorbing and moisture removing layer, wherein the sweat absorbing and moisture removing layer is positioned on the outer side of the outer cladding. The invention is provided with three layers of protection, thereby improving the anti-ultraviolet effect. The sweat-absorbing and moisture-removing layer is formed by weaving pure cotton and polyester fibers, so that the whole fabric has the characteristics of comfortable sweat absorption of cotton and the like, and also has the characteristics of stiffness, smoothness, quick washing and easiness in drying of the polyester fibers; meanwhile, the shape retention of the whole fabric is improved. Meanwhile, the manufacturing method of the mirror reflection layer can enable the aluminum foil reflection beads to be attached to the base surface, and can increase the reflection strength and the reflection angle of the whole fabric, so that the ultraviolet-proof effect of the whole fabric is improved.)

1. The preparation method of the ultraviolet-resistant fabric is characterized by comprising the following steps:

firstly, preparing polyester fiber, namely crushing and cleaning recycled waste polyester bottle chips, and then conveying the crushed and cleaned waste polyester bottle chips to a crystallization bed for crystallization and drying; obtaining dry polyester bottle chips with the water content of less than 35 PPm; feeding the dry polyester bottle flakes into a screw extruder for melt extrusion; adding 0.1-0.5% of melted ultraviolet screening agent melt into the melt extruded by the screw extruder according to the mass ratio, and introducing the melt into a prefilter through a melt pump for filtering; introducing the solution filtered by the prefilter into a polymerization kettle for mixing and polycondensation; introducing the condensed solution into a spinning box by a metering pump for melt spinning; the strand silk sprayed out of the hollow spinneret plate of the spinning box is cooled and solidified through side air blowing of a side air blowing box; after the cross air blow is cooled and solidified, the yarns are oiled, so that the yarn tension is reduced and the cohesive force of the tows is increased; gathering the strand silk into a tow and performing two-step full stretching by a stretching device; winding and doffing the fully-stretched filaments in the second step by a winding doffing machine to obtain fully-stretched polyester fibers;

The winding speed of the winding and falling barrel machine is 4000 m/min-4300 m/min;

In the two-step full stretching, the rotating speeds of a roller and two rollers in the one-step stretching are respectively as follows:

1520 m/min-1820 m/min, 1510 m/min-1810 m/min; the surface temperature of the first roller and the surface temperature of the second roller are both 92 ℃ to 94 ℃;

The rotating speeds of the three rollers and the four rollers in the two-step stretching are respectively as follows: 4085-4385 m/min, 4075-4375 m/min; the surface temperatures of the three rollers and the four rollers are both 140 ℃ to 142 ℃;

The crystallization drying temperature in the crystallization bed is 170-175 ℃;

the melt extrusion temperature of the screw extruder is as follows: the temperature of a first zone is 255-285 ℃, the temperature of a second zone is 280-300 ℃, the temperature of a third zone is 288-300 ℃, the temperature of a fourth zone is 288-300 ℃, the temperature of a fifth zone is 280-290 ℃, the temperature of a sixth zone is 280-290 ℃, the temperature of a seventh zone is 280-285 ℃, and the temperature of a machine head is 275-285 ℃;

the diameter of the hollow spinneret plate is 175 mm, the number of spinneret holes on the spinneret plate is 24-48, the diameter of the spinneret holes is 0.25 mm, and the length-diameter ratio L/D of the spinneret holes is 2: 1-2.5: 1;

the side air outlet temperature is 21-22 ℃; the side wind speed is 0.45-0.50 m/s; the fully drawn polyester fiber is 40D-55D;

The prepared polyester fiber is used as weft, and pure cotton is used as warp; spinning, sterilizing, weaving by using corresponding equipment, and dyeing and finishing the woven surface layer to prepare a sweat absorbing and moisture removing layer;

secondly, weaving the polyester fibers prepared in the first step as weft and warp respectively, and placing the woven polyester fibers in a special woven matter disinfection box after weaving; an ultraviolet light wave generating device is arranged in the disinfection box to generate ultraviolet light waves with disinfection function; a heating device is arranged in the disinfection box, so that the disinfection environment temperature in the disinfection box is raised to the pasteurization temperature range to realize the sterilization and disinfection by combining light waves and heat energy; dyeing the sterilized polyester fiber layer with a dye added with a mosquito repellent to prepare a mosquito repellent perfume layer;

Controlling the temperature of the sterilization environment in the sterilization box within a pasteurization temperature range of 50-80 ℃; or controlling the temperature of the sterilization environment in the sterilization box within the pasteurization instantaneous high-temperature sterilization range of 90-100 ℃; the disinfection box is internally provided with a broadband light wave generating device for generating broadband light waves with disinfection function and wavelength of 100-1500 nm, and ultraviolet C waves account for 0.25-0.8% of the broadband light waves;

The dyeing agent for dyeing is prepared from dye and perfume mosquito repellent according to the weight ratio of 5:1, stirring and mixing; during dyeing by adding dye of perfume mosquito repellent, spreading the sterilized polyester fiber layer on a stainless steel ring net conveyor belt for dyeing;

Spraying and dipping the woven fabric by using a dye liquor added with a mosquito repellent, and carrying out 3 dipping procedures, wherein the temperature of the sprayed and dipped dye liquor is 60-90 ℃, and the spraying and dipping time is 3-15 minutes;

Pad dyeing the fabric, through the pad dyeing process 4 times, the pad dyeing process guarantees the fabric and the dye liquor fully contacts, the pad residue rate of the pad-dried fabric is controlled at 40% -80%, in order to make the dye liquor fully react with the fabric, the steps of dye liquor spraying and dipping and pad dyeing the fabric are alternately carried out;

Drying the obtained pad dyeing woven fabric by hot air of a dryer;

spraying the color fixing solution to dip the woven fabric, and performing dipping procedures for 2 times, wherein the temperature of the spraying dipping color fixing solution is 70-100 ℃, and the spraying dipping time is 5-20 minutes; rolling dry and solid color woven fabric, wherein the rolling dry process is carried out for 4 times, the rolling dyeing process ensures that the woven fabric is contacted with dye liquor, the liquor carrying rate of the rolling dry woven fabric is 5-40%, and in order to ensure that the color fixing liquor and the woven fabric fully react, the steps of dye liquor spraying and dipping and the steps of rolling dyeing woven fabric are alternately carried out;

Drying the obtained pad dyeing woven fabric by hot air of a dryer; stacking the steam-steaming woven fabric, wherein the steam-steaming temperature is 100-130 ℃, and the steam-steaming time is 20-40 minutes; washing and soaping the woven fabric, and carrying out 2 washing and soaping procedures, wherein the temperature of the washing and soaping liquid is 40-80 ℃, and the washing and soaping time is 5-25 minutes; drying the obtained pad dyeing woven fabric by hot air of a dryer;

And thirdly, pressing the sweat absorbing and moisture removing layer and the mosquito repellent incense layer to form an outer coating.

2. the preparation method of the ultraviolet-resistant fabric according to claim 1, wherein the first step is carried out by using corresponding equipment before weaving: and after the ultraviolet black body absorption layer is woven, the ultraviolet black body absorption layer is used as a reference plane.

3. the method for preparing the ultraviolet-resistant fabric according to claim 2, wherein after the reference surface is prepared, the mixture of the adhesive and the aluminum foil reflecting micro-beads is coated on the ultraviolet black body absorbing layer, a strong electric field is generated by high voltage, so that the aluminum foil reflecting micro-beads are charged to be adsorbed on the ultraviolet black body absorbing layer, and then subsequent treatment is carried out.

4. the method for preparing the ultraviolet-resistant fabric as claimed in claim 3, wherein the method for preparing the black body absorption layer comprises the following steps:

1) Selecting a pure black polyester material on the market;

2) Sewing and compacting the two layers of black polyester materials;

3) And bonding the black polyester fabric and the mirror surface reflective material by using hot melt adhesive.

5. the method for preparing the ultraviolet-resistant fabric according to claim 4, wherein the specific process for preparing the specular reflection layer comprises the following steps:

Firstly, processing an aluminum foil into reflective microbeads with the same shape and size by using related equipment, and taking an ultraviolet black body absorption layer as a base surface;

Secondly, coating a mixture of an adhesive and aluminum foil reflective microspheres on the ultraviolet black body absorption layer;

And finally, generating a strong electric field by the aluminum foil reflection beads through high voltage electricity, enabling the aluminum foil reflection beads to be electrified and adsorbed on the ultraviolet black body absorption layer, and performing subsequent treatment to obtain the mirror reflection layer.

6. The method for preparing the ultraviolet-resistant fabric according to claim 1, wherein in the third step, after the sweat-absorbing and moisture-removing layer and the mosquito-repellent incense layer are subjected to pressing treatment to form an outer covering layer, the following steps are required:

and wrapping the outer cladding layer and the specular reflection layer, and pressing.

7. The ultraviolet-resistant fabric prepared by the preparation method of the ultraviolet-resistant fabric according to claim 1 is characterized by being provided with:

An ultraviolet black body absorbing layer;

a mirror reflection layer is arranged at the right end of the ultraviolet black body absorption layer, and an outer cladding layer wraps the outer sides of the ultraviolet black body absorption layer and the mirror reflection layer;

The outer cladding is provided with a mosquito repellent perfume layer and a sweat absorbing and moisture removing layer, and the sweat absorbing and moisture removing layer is positioned on the outer side of the outer cladding.

8. The ultraviolet-resistant fabric of claim 7, wherein the sweat-absorbing and moisture-removing layer is composed of polyester fibers and pure cotton, and the weight ratio of the polyester fibers: pure cotton is 3-3.5: 6.5-7.0.

9. an outdoor sportswear knitted by using the ultraviolet-resistant fabric of any one of claims 7 to 8.

10. Daily casual clothes woven by the ultraviolet-resistant fabric according to any one of claims 7 to 8.

Technical Field

The invention belongs to the field of materials, and particularly relates to an anti-ultraviolet fabric and a preparation method thereof.

background

the method for obtaining the ultraviolet-resistant function of the fabric at present has three methods, wherein the first ultraviolet screening agent is mixed with chemical fiber raw materials and then is prepared into the fiber and the fabric with the ultraviolet-shielding function. And secondly, directly preparing the master batch containing the high-concentration ultraviolet screening agent and chemical fiber raw materials into the ultraviolet screening composite fiber with the core-sheath structure in the spinning process through equipment such as composite spinning and the like. And thirdly, after finishing the surface of the fabric, the ultraviolet-resistant finishing of the fabric is to apply an ultraviolet-resistant finishing agent on the fabric to resist or consume ultraviolet rays.

However, the existing fabric has poor ultraviolet-proof effect and complex process, thereby increasing the cost. Meanwhile, the existing fabric is not easy to absorb sweat of wearing, so that the fabric is easy to be wet, and the comfort is reduced.

In summary, the problems of the prior art are as follows:

(1) The existing fabric has poor ultraviolet-proof effect and complex process, thereby improving the cost.

(2) the existing fabric is not easy to absorb sweat of wearing, so that the fabric is easy to be wet, and the comfort is reduced.

(3) The existing dyeing mode is an intermittent dyeing method, and a plurality of processes such as dyeing, cleaning and the like are carried out, so that the consumed working hours are long, the efficiency is low, the auxiliary workload is large, the leaked waste water and waste liquid are more, and the environment is polluted.

(4) the existing infrared high-temperature disinfection mode is slow in disinfection speed, and only bacteria on the part exposed under ultraviolet irradiation can be killed, so that the disinfection efficiency is low.

disclosure of Invention

Aiming at the problems in the prior art, the invention provides a preparation method of an anti-ultraviolet fabric and the anti-ultraviolet fabric.

the invention is realized in such a way that the anti-ultraviolet fabric is provided with:

An ultraviolet black body absorbing layer;

A mirror reflection layer is arranged at the right end of the ultraviolet black body absorption layer, and an outer cladding layer wraps the outer sides of the ultraviolet black body absorption layer and the mirror reflection layer;

the outer cladding is provided with a mosquito repellent perfume layer and a sweat absorbing and moisture removing layer, wherein the sweat absorbing and moisture removing layer is positioned on the outer side of the outer cladding.

the invention also aims to provide a preparation method of the ultraviolet-resistant fabric, which comprises the following steps:

firstly, preparing polyester fiber, namely crushing and cleaning recycled waste polyester bottle chips, and then conveying the crushed and cleaned waste polyester bottle chips to a crystallization bed for crystallization and drying; obtaining dry polyester bottle chips with the water content of less than 35 PPm; feeding the dry polyester bottle flakes into a screw extruder for melt extrusion; adding 0.1-0.5% of melted ultraviolet screening agent melt into the melt extruded by the screw extruder according to the mass ratio, and introducing the melt into a prefilter through a melt pump for filtering; introducing the solution filtered by the prefilter into a polymerization kettle for mixing and polycondensation; introducing the condensed solution into a spinning box by a metering pump for melt spinning; the strand silk sprayed out of the hollow spinneret plate of the spinning box is cooled and solidified through side air blowing of a side air blowing box; after the cross air blow is cooled and solidified, the yarns are oiled, so that the yarn tension is reduced and the cohesive force of the tows is increased; gathering the strand silk into a tow and performing two-step full stretching by a stretching device; winding and doffing the fully-stretched filaments in the second step by a winding doffing machine to obtain fully-stretched polyester fibers;

The winding speed of the winding and falling barrel machine is 4000 m/min-4300 m/min;

in the two-step full stretching, the rotating speeds of a roller and two rollers in the one-step stretching are respectively as follows:

1520 m/min-1820 m/min, 1510 m/min-1810 m/min; the surface temperature of the first roller and the surface temperature of the second roller are both 92 ℃ to 94 ℃;

The rotating speeds of the three rollers and the four rollers in the two-step stretching are respectively as follows: 4085-4385 m/min, 4075-4375 m/min; the surface temperatures of the three rollers and the four rollers are both 140 ℃ to 142 ℃;

the crystallization drying temperature in the crystallization bed is 170-175 ℃;

The melt extrusion temperature of the screw extruder is as follows: the temperature of a first zone is 255-285 ℃, the temperature of a second zone is 280-300 ℃, the temperature of a third zone is 288-300 ℃, the temperature of a fourth zone is 288-300 ℃, the temperature of a fifth zone is 280-290 ℃, the temperature of a sixth zone is 280-290 ℃, the temperature of a seventh zone is 280-285 ℃, and the temperature of a machine head is 275-285 ℃;

the diameter of the hollow spinneret plate is 175 mm, the number of spinneret holes on the spinneret plate is 24-48, the diameter of the spinneret holes is 0.25 mm, and the length-diameter ratio L/D of the spinneret holes is 2: 1-2.5: 1;

The side air outlet temperature is 21-22 ℃; the side wind speed is 0.45-0.50 m/s; the fully drawn polyester fiber is 40D-55D;

The prepared polyester fiber is used as weft, and pure cotton is used as warp; spinning, sterilizing, weaving by using corresponding equipment, and dyeing and finishing the woven surface layer to prepare a sweat absorbing and moisture removing layer;

Secondly, weaving the polyester fibers prepared in the first step as weft and warp respectively, and placing the woven polyester fibers in a special woven matter disinfection box after weaving; an ultraviolet light wave generating device is arranged in the disinfection box to generate ultraviolet light waves with disinfection function; a heating device is arranged in the disinfection box, so that the disinfection environment temperature in the disinfection box is raised to the pasteurization temperature range to realize the sterilization and disinfection by combining light waves and heat energy; dyeing the sterilized polyester fiber layer with a dye added with a mosquito repellent to prepare a mosquito repellent perfume layer;

controlling the temperature of the sterilization environment in the sterilization box within a pasteurization temperature range of 50-80 ℃; or controlling the temperature of the sterilization environment in the sterilization box within the pasteurization instantaneous high-temperature sterilization range of 90-100 ℃; the disinfection box is internally provided with a broadband light wave generating device for generating broadband light waves with disinfection function and wavelength of 100-1500 nm, and ultraviolet C waves account for 0.25-0.8% of the broadband light waves;

The dyeing agent for dyeing is prepared from dye and perfume mosquito repellent according to the weight ratio of 5:1, stirring and mixing; during dyeing by adding dye of perfume mosquito repellent, spreading the sterilized polyester fiber layer on a stainless steel ring net conveyor belt for dyeing;

Spraying and dipping the woven fabric by using a dye liquor added with a mosquito repellent, and carrying out 3 dipping procedures, wherein the temperature of the sprayed and dipped dye liquor is 60-90 ℃, and the spraying and dipping time is 3-15 minutes;

Pad dyeing the fabric, through the pad dyeing process 4 times, the pad dyeing process guarantees the fabric and the dye liquor fully contacts, the pad residue rate of the pad-dried fabric is controlled at 40% -80%, in order to make the dye liquor fully react with the fabric, the steps of dye liquor spraying and dipping and pad dyeing the fabric are alternately carried out;

Drying the obtained pad dyeing woven fabric by hot air of a dryer;

spraying the color fixing solution to dip the woven fabric, and performing dipping procedures for 2 times, wherein the temperature of the spraying dipping color fixing solution is 70-100 ℃, and the spraying dipping time is 5-20 minutes; rolling dry and solid color woven fabric, wherein the rolling dry process is carried out for 4 times, the rolling dyeing process ensures that the woven fabric is contacted with dye liquor, the liquor carrying rate of the rolling dry woven fabric is 5-40%, and in order to ensure that the color fixing liquor and the woven fabric fully react, the steps of dye liquor spraying and dipping and the steps of rolling dyeing woven fabric are alternately carried out;

Drying the obtained pad dyeing woven fabric by hot air of a dryer; stacking the steam-steaming woven fabric, wherein the steam-steaming temperature is 100-130 ℃, and the steam-steaming time is 20-40 minutes; washing and soaping the woven fabric, and carrying out 2 washing and soaping procedures, wherein the temperature of the washing and soaping liquid is 40-80 ℃, and the washing and soaping time is 5-25 minutes; drying the obtained pad dyeing woven fabric by hot air of a dryer;

And thirdly, pressing the sweat absorbing and moisture removing layer and the mosquito repellent incense layer to form an outer coating.

further, the first step is performed by using corresponding equipment before programming: and after the ultraviolet black body absorption layer is woven, the ultraviolet black body absorption layer is used as a reference plane.

further, after the reference surface is prepared, a mixture of an adhesive and aluminum foil reflective beads is coated on the ultraviolet black body absorption layer, a strong electric field is generated by high-voltage electricity, and the aluminum foil reflective beads are charged to be adsorbed on the ultraviolet black body absorption layer for subsequent treatment.

further, the preparation method of the black body absorption layer comprises the following steps:

1) Selecting a pure black polyester material on the market;

2) sewing and compacting the two layers of black polyester materials;

3) and bonding the black polyester fabric and the mirror surface reflective material by using hot melt adhesive.

further, the specific process for preparing the specular reflection layer comprises the following steps:

Firstly, processing an aluminum foil into reflective microbeads with the same shape and size by using related equipment, and taking an ultraviolet black body absorption layer as a base surface;

secondly, coating a mixture of an adhesive and aluminum foil reflective microspheres on the ultraviolet black body absorption layer;

And finally, generating a strong electric field by the aluminum foil reflection beads through high voltage electricity, enabling the aluminum foil reflection beads to be electrified and adsorbed on the ultraviolet black body absorption layer, and performing subsequent treatment to obtain the mirror reflection layer.

Further, after the sweat absorbing and moisture removing layer and the mosquito repellent incense layer are subjected to press-fit treatment to form an outer cladding layer, the third step is carried out:

And wrapping the outer cladding layer and the specular reflection layer, and pressing.

the invention also aims to provide the outdoor sportswear knitted by the ultraviolet-resistant fabric.

the invention also aims to provide daily casual clothes woven by the ultraviolet-resistant fabric.

the invention has the advantages and positive effects that:

The invention has three layers of protection, improves the anti-ultraviolet effect, and has simple process and low cost.

the sweat-absorbing and moisture-removing layer is formed by weaving pure cotton and polyester fibers, so that the whole fabric has the characteristics of comfortable sweat absorption of cotton and the like, and also has the characteristics of stiffness, smoothness, quick washing and easiness in drying of the polyester fibers; meanwhile, the shape retention of the whole fabric is improved.

in the invention, aluminum foil is processed into reflective micro-beads with the same shape and size by using related equipment in the specular reflection layer, and the ultraviolet black body absorption layer is used as a base surface; coating a mixture of an adhesive and aluminum foil reflective microspheres on the ultraviolet black body absorbing layer; the aluminum foil reflective micro beads generate a strong electric field through high voltage electricity, so that the aluminum foil reflective micro beads are electrified and adsorbed on the ultraviolet black body absorption layer for subsequent treatment. The manufacturing method of the mirror reflection layer can enable the aluminum foil reflective micro-beads to be tightly attached to the base surface, and meanwhile, the reflective strength and the reflective angle of the whole fabric can be increased, so that the ultraviolet-proof effect of the whole fabric is improved.

in the mosquito-repellent incense layer, terylene is used as weft and warp to be woven, and disinfection is carried out after weaving is finished; dyeing and drying the woven base cloth after the disinfection to prepare a mosquito repellent incense layer; wherein, the dyeing agent for dyeing is prepared from dye and perfume mosquito repellent according to the weight ratio of 5:1, stirring and mixing. The mosquito repelling effect can be improved by the manufacturing method of the mosquito repelling spice layer.

the dyeing method provided by the invention is characterized in that the woven fabric is placed in a continuous dyeing machine, and the woven fabric is subjected to continuous treatment sequentially through the working procedures of lapping, spraying and dipping dye liquor, rolling and drying, spraying and dipping color fixing liquor, rolling and drying, air steaming, washing, drying and the like. During dyeing, the fixation time is greatly shortened, only a few minutes to more than ten minutes are needed, and compared with the traditional dyeing method, a great deal of dyeing time is saved. The method of the invention is continuous dyeing, and does not need a large amount of auxiliary work among working procedures, thereby saving labor, reducing the consumption of energy sources such as water and electricity and reducing the production cost.

the fabric of the present invention. Easy finishing (including wash fastness and quick drying), anti-wrinkle, air permeability, and anti-uv function.

The 40D-55D polyester fiber has excellent wear resistance, is added with other beneficial components, has high bonding force, and has the monofilament breaking strength of the 40D-55D polyester fiber of 4.2cN-4.6 Cn; the single-filament breaking strength of the existing market is generally 3.2cN-3.5 cN; therefore, the wear resistance of the invention is greatly improved;

The invention is 1.3222-1.6432 in the deviation of the Cv value of the elongation at break of the monofilament; the deviation of the elongation at break Cv value of the monofilament in the existing market is generally about 2.890-5.334; the monofilament in the existing market has poor performance and the quality can not be ensured.

drawings

Fig. 1 is a schematic structural diagram of an ultraviolet-resistant fabric provided by an embodiment of the invention.

Fig. 2 is a flow chart of a preparation method of the ultraviolet-resistant fabric provided by the embodiment of the invention.

In the figure: 1. a specular reflection layer; 2. an ultraviolet black body absorbing layer; 3. an outer cladding; 4. a mosquito-repellent incense layer; 5. a sweat absorbing and moisture removing layer.

Detailed Description

in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to solve the above technical problems, the technical solution of the present invention is described in detail below.

as shown in fig. 1, the ultraviolet-resistant fabric is provided with an ultraviolet black body absorption layer 2, a mirror reflection layer 1 is arranged at the right end of the ultraviolet black body absorption layer 2, an outer covering layer 3 wraps the outer sides of the ultraviolet black body absorption layer 2 and the mirror reflection layer 1, the outer covering layer 3 is provided with a mosquito-repellent perfume layer 4 and a sweat-absorbing and moisture-removing layer 5, and the sweat-absorbing and moisture-removing layer 5 is located on the outer side of the outer covering layer 3.

the sweat absorbing and moisture removing layer 5 provided by the embodiment of the invention is composed of polyester fiber and pure cotton; according to the mass ratio, the polyester fiber: pure cotton is 3-3.5: 6.5-7.0.

As shown in fig. 2, the preparation method of the ultraviolet-resistant fabric provided by the embodiment of the invention specifically includes the following steps:

s101: and after the ultraviolet black body absorption layer is woven, the ultraviolet black body absorption layer is used as a reference plane.

s102: and coating a mixture of an adhesive and the aluminum foil reflection microbeads on the ultraviolet black body absorption layer, generating a strong electric field by using high voltage to enable the aluminum foil reflection microbeads to be electrified and adsorbed on the ultraviolet black body absorption layer, and performing subsequent treatment to obtain the mirror reflection layer.

S103: preparing polyester fibers, namely taking the prepared polyester fibers as weft and pure cotton as warp; spinning, sterilizing, weaving by using corresponding equipment, and dyeing and finishing the woven surface layer to prepare the sweat absorbing and moisture removing layer.

s104: respectively weaving the polyester fibers prepared in the step S103 as weft yarns and warp yarns, and placing the woven polyester fibers in a special woven fabric disinfection box after weaving; an ultraviolet light wave generating device is arranged in the disinfection box to generate ultraviolet light waves with disinfection function; a heating device is arranged in the disinfection box, so that the disinfection environment temperature in the disinfection box is raised to the pasteurization temperature range to realize the sterilization and disinfection by combining light waves and heat energy; and dyeing the sterilized polyester fiber layer by using a dye added with a mosquito repellent to prepare the mosquito repellent perfume layer.

s105: and pressing the sweat absorbing and moisture removing layer and the mosquito repellent perfume layer to form an outer coating.

s106: and (5) wrapping the outer cladding layer obtained in the step (S105) and the specular reflection layer obtained in the step (S102), and pressing.

in step S101, the method for preparing the black body absorption layer includes:

1) selecting pure black polyester materials on the market.

2) And (4) sewing and compacting the two layers of black polyester materials.

3) And bonding the black polyester fabric and the mirror surface reflective material by using hot melt adhesive.

In step S102, the preparation process of the specular reflection layer specifically includes:

First, the aluminum foil is processed into the reflective beads having the same shape and size by using the relevant equipment, and the ultraviolet black body absorbing layer is used as a base surface.

secondly, a mixture of adhesive and aluminum foil reflective beads was coated on the ultraviolet black body absorbing layer.

And finally, generating a strong electric field by the aluminum foil reflecting micro-beads through high voltage electricity, and enabling the aluminum foil reflecting micro-beads to be electrified and adsorbed on the ultraviolet black body absorption layer for subsequent treatment.

In the step S103, preparing polyester fibers, namely crushing and cleaning the recovered waste polyester bottle chips, and then conveying the crushed and cleaned waste polyester bottle chips to a crystallization bed for crystallization and drying; obtaining dry polyester bottle chips with the water content of less than 35 PPm; feeding the dry polyester bottle flakes into a screw extruder for melt extrusion; adding 0.1-0.5% of melted ultraviolet screening agent melt into the melt extruded by the screw extruder according to the mass ratio, and introducing the melt into a prefilter through a melt pump for filtering; introducing the solution filtered by the prefilter into a polymerization kettle for mixing and polycondensation; introducing the condensed solution into a spinning box by a metering pump for melt spinning; the strand silk sprayed out of the hollow spinneret plate of the spinning box is cooled and solidified through side air blowing of a side air blowing box; after the cross air blow is cooled and solidified, the yarns are oiled, so that the yarn tension is reduced and the cohesive force of the tows is increased; gathering the strand silk into a tow and performing two-step full stretching by a stretching device; and (4) winding and doffing the fully-stretched filaments in the second step by a winding doffing machine to obtain the fully-stretched polyester fibers.

the winding speed of the winding and falling barrel machine is 4000 m/min-4300 m/min.

in the two-step full stretching, the rotating speeds of a roller and two rollers in the one-step stretching are respectively as follows:

1520 m/min-1820 m/min, 1510 m/min-1810 m/min; the surface temperature of the first roller and the surface temperature of the second roller are both 92 ℃ to 94 ℃.

The rotating speeds of the three rollers and the four rollers in the two-step stretching are respectively as follows: 4085-4385 m/min, 4075-4375 m/min; the surface temperatures of the three rollers and the four rollers are both 140 ℃ to 142 ℃;

the crystallization drying temperature in the crystallization bed is 170-175 ℃.

The melt extrusion temperature of the screw extruder is as follows: the temperature of the first zone is 255-285 ℃, the temperature of the second zone is 280-300 ℃, the temperature of the third zone is 288-300 ℃, the temperature of the fourth zone is 288-300 ℃, the temperature of the fifth zone is 280-290 ℃, the temperature of the sixth zone is 280-290 ℃, the temperature of the seventh zone is 280-285 ℃, and the temperature of the machine head is 275-285 ℃.

The diameter of the hollow spinneret plate is 175 mm, the number of the spinneret holes on the spinneret plate is 24-48, the diameter of the spinneret holes is 0.25 mm, and the length-diameter ratio L/D of the spinneret holes is 2: 1-2.5: 1.

the side air outlet temperature is 21-22 ℃; the side wind speed is 0.45-0.50 m/s; the fully drawn polyester fiber is 40D-55D.

The prepared polyester fiber is used as weft, and pure cotton is used as warp; spinning, sterilizing, weaving by using corresponding equipment, and dyeing and finishing the woven surface layer to prepare the sweat absorbing and moisture removing layer.

Step S104, controlling the temperature of the sterilization environment in the sterilization box within a pasteurization temperature range of 50-80 ℃; or controlling the temperature of the sterilization environment in the sterilization box within the pasteurization instantaneous high-temperature sterilization range of 90-100 ℃; the disinfection box is internally provided with a broadband light wave generating device for generating broadband light waves with disinfection function and wavelength of 100-1500 nm, and ultraviolet C waves account for 0.25-0.8% of the broadband light waves;

the dyeing agent for dyeing is prepared from dye and perfume mosquito repellent according to the weight ratio of 5:1, stirring and mixing; during dyeing by adding the dye of the perfume mosquito repellent, the polyester fiber layer after sterilization treatment is paved on a stainless steel ring net conveyor belt for dyeing.

The weaving materials are sprayed and impregnated by using the dye liquor added with the mosquito repellent, and the temperature of the sprayed and impregnated dye liquor is 60-90 ℃ after 3 times of impregnation procedures, and the spraying and impregnating time is 3-15 minutes.

The pad dyeing process is carried out on the fabric for 4 times, the pad dyeing process ensures that the fabric is fully contacted with a dye solution, the pad residue rate of the pad-dried fabric is controlled to be 40-80%, and in order to ensure that the dye solution and the fabric fully react, the steps of dye solution spraying and dipping and the steps of pad dyeing the fabric are alternately carried out.

and drying the obtained pad dyeing woven fabric by using hot air of a dryer.

spraying the color fixing solution to dip the woven fabric, and performing dipping procedures for 2 times, wherein the temperature of the spraying dipping color fixing solution is 70-100 ℃, and the spraying dipping time is 5-20 minutes; and (3) rolling dry and color fixing woven fabric, wherein the rolling dry process is carried out for 4 times, the rolling dyeing process ensures that the woven fabric is contacted with dye liquor, the liquor carrying rate of the rolling dry woven fabric is 5-40%, and in order to ensure that the color fixing liquor and the woven fabric fully react, the steps of dye liquor spraying and dipping and the steps of rolling dyeing woven fabric are alternately carried out.

Drying the obtained pad dyeing woven fabric by hot air of a dryer; stacking the steam-steaming woven fabric, wherein the steam-steaming temperature is 100-130 ℃, and the steam-steaming time is 20-40 minutes; washing and soaping the woven fabric, and carrying out 2 washing and soaping procedures, wherein the temperature of the washing and soaping liquid is 40-80 ℃, and the washing and soaping time is 5-25 minutes; and drying the obtained pad dyeing woven fabric by using hot air of a dryer.

The following structure further describes the present invention with particular reference to uv protection testing.

the invention changes the quantity of aluminum foil reflective micro-beads in the mirror surface reflective layer to carry out the ultraviolet resistance test, and the test data comprises the following steps:

table 1 shows the ultraviolet resistance data of the fabric with different numbers of aluminum foil reflective beads

as can be seen from Table 1, the more the number of the aluminum foil reflective beads is, the better the ultraviolet resistance effect of the whole fabric is.

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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.