阅读说明：本技术 一种降温纺织品及其制备方法 (Cooling textile and preparation method thereof ) 是由 罗屹东 骆诗华 李玉柱 于 2020-12-30 设计创作，主要内容包括：本发明提供了一种降温纺织品,包括多个中红外辐射区域以及多个热湿舒适区域,且多个所述中红外辐射区域与多个所述热湿舒适区域交错设置；其中,多个所述中红外辐射区域由第一纱线编织得到,多个所述热湿舒适区域由第二纱线编织得到,且所述第一纱线为中红外透射率不低于30％的中红外辐射纱线；所述第二纱线包括亲水纱线。通过设置中红外辐射区域以及热湿舒适区域,且中红外辐射区域中红外透射率不低于30％的中红外辐射纱线,能有效对人体产生的热辐射向外传递,达到热辐射降温的效果；热湿舒适区域采用亲水纱线,能保证人体汗液向外传递,有助于汗液蒸发达到降温的效果,使得纺织品具有显著的降温效果、舒适度、透气性、使用性以及耐洗性。(The invention provides a cooling textile, which comprises a plurality of intermediate infrared radiation areas and a plurality of heat and humidity comfort areas, wherein the intermediate infrared radiation areas and the heat and humidity comfort areas are arranged in a staggered manner; the plurality of intermediate infrared radiation areas are obtained by weaving first yarns, the plurality of heat and moisture comfort areas are obtained by weaving second yarns, and the first yarns are intermediate infrared radiation yarns with intermediate infrared transmittance not lower than 30%; the second yarn comprises a hydrophilic yarn. By arranging the intermediate infrared radiation area and the heat-moisture comfortable area, and the intermediate infrared radiation yarns with the infrared transmittance not lower than 30% in the intermediate infrared radiation area, the heat radiation generated to a human body can be effectively transmitted outwards, and the effect of heat radiation cooling is achieved; the heat and moisture comfortable area adopts the hydrophilic yarn, so that the sweat of the human body can be transmitted outwards, the sweat evaporation is facilitated to achieve the cooling effect, and the textile has obvious cooling effect, comfort level, air permeability, usability and washability.)

1. The cooling textile is characterized by comprising a plurality of intermediate infrared radiation areas and a plurality of heat and humidity comfort areas, wherein the intermediate infrared radiation areas and the heat and humidity comfort areas are arranged in a staggered manner; the plurality of intermediate infrared radiation areas are obtained by weaving first yarns, the plurality of heat and moisture comfort areas are obtained by weaving second yarns, and the first yarns are intermediate infrared radiation yarns with intermediate infrared transmittance not lower than 30%; the second yarn comprises a hydrophilic yarn.

2. The cooling textile product of claim 1, wherein the ratio of the number of the intermediate infrared radiation yarns to the number of the hydrophilic yarns is 2-5: 1-2.

3. The cooling textile according to claim 1, wherein the intermediate infrared radiation yarn is an olefin polymer fiber, a natural fiber or a blended spun yarn containing an olefin polymer fiber.

4. The cooling textile according to claim 3, wherein the olefin polymer fibers are one or both of polyethylene fibers and polypropylene fibers.

5. The cooling textile according to claim 4, wherein the hydrophilic yarn is a side-by-side composite fiber prepared from polyethylene and nylon 6 in a mass ratio of 1: 1.

6. The cooling textile according to claim 5, wherein the preparation method of the composite fiber comprises the following steps:

respectively drying a polyethylene raw material and a nylon 6 raw material;

placing the dried polyethylene raw material in a first temperature control charging barrel to be heated and melted to obtain a molten polyethylene raw material;

placing the dried nylon 6 in a second temperature control charging barrel to be heated and melted to obtain a molten nylon 6 raw material;

and extruding the polyethylene raw material in a molten state and the nylon 6 raw material in a molten state through a single screw with parallel spinneret plates to obtain the parallel composite fibers.

7. The cooling textile according to claim 6, wherein the heating temperature in the first temperature control cylinder is 165-260 ℃; the heating temperature in the second temperature control charging barrel is 250-300 ℃.

8. A cooling textile product according to claim 2 wherein said intermediate infrared radiation zone has a multi-layer structure.

9. The cooling textile product of claim 1, wherein the diameter of said mid-ir radiation yarn is 5-300 μm.

10. The cooling textile product of claim 1, wherein said hydrophilic yarns have a diameter of 5 μm to 300 μm.

Technical Field

The invention relates to the field of textiles, in particular to a cooling textile and a preparation method thereof.

Background

With the improvement of living standard, people have higher and higher requirements on wearing comfortable, environment-friendly and healthy clothes, and especially pay more attention to the heat-moisture comfort of the clothes. There are three ways for the heat of human body to be dissipated outwards, namely heat radiation, heat conduction and heat convection. About 65% of human body heat is transferred outwards through heat radiation, and the heat radiation of the human body is mainly concentrated in the wavelength range of 7-14 μm and belongs to the middle infrared, so that the heat management of the human body by utilizing the middle infrared radiation is of great significance.

At present, cooling fabrics mainly comprise phase change material fabrics and cool fiber fabrics added with inorganic powder, but the two fabrics have the problems of complex preparation process, high processing cost and poor water washing resistance. In addition, in the prior art, the fabric is cooled by coating a metal coating and a silicon dioxide coating on the surface of the fabric, but the coated coating is directly contacted with the skin of a human body, so that discomfort can be caused, the quality of the coating can be influenced when the human body sweats, and even the coating is oxidized. The cooling by means of applying a coating also presents the problem of poor air permeability, usability and washability of the fabric.

In conclusion, the above-mentioned problems still remain to be solved in the field of cooling textiles.

Disclosure of Invention

Based on the above, in order to solve the problems of complex preparation process, high cost and poor air permeability, usability, washability and comfort of the cooling textile in the prior art, the invention provides a cooling textile and a preparation method thereof, and the specific technical scheme is as follows:

a cooling textile comprises a plurality of intermediate infrared radiation areas and a plurality of heat and humidity comfort areas, wherein the intermediate infrared radiation areas and the heat and humidity comfort areas are arranged in a staggered mode; the plurality of intermediate infrared radiation areas are obtained by weaving first yarns, the plurality of heat and moisture comfort areas are obtained by weaving second yarns, and the first yarns are intermediate infrared radiation yarns with intermediate infrared transmittance not lower than 30%; the second yarn comprises a hydrophilic yarn.

Preferably, the ratio of the weaving number of the intermediate infrared radiation yarns to the hydrophilic yarns is 2-5: 1-2.

Preferably, the intermediate infrared radiation yarn is an olefin polymer fiber, a natural fiber or a blended yarn containing an olefin polymer fiber.

Preferably, the olefin polymer fibers are one or two of polyethylene fibers and polypropylene fibers.

Preferably, the hydrophilic yarn is a side-by-side composite fiber prepared from polyethylene and nylon 6 in a mass ratio of 1: 1.

Preferably, the preparation method of the composite fiber comprises the following steps:

respectively drying a polyethylene raw material and a nylon 6 raw material;

placing the dried polyethylene raw material in a first temperature control charging barrel to be heated and melted to obtain a molten polyethylene raw material;

placing the dried nylon 6 in a second temperature control charging barrel to be heated and melted to obtain a molten nylon 6 raw material;

and extruding the polyethylene raw material in a molten state and the nylon 6 raw material in a molten state through a single screw with parallel spinneret plates to obtain the parallel composite fibers.

Preferably, the heating temperature in the first temperature control cylinder is 165-260 ℃; the heating temperature in the second temperature control charging barrel is 250-300 ℃.

Preferably, a plurality of the mid-infrared radiation regions are of a plurality of layers.

Preferably, the diameter of the mid-infrared radiation yarn is 5 μm to 300 μm.

Preferably, the diameter of the hydrophilic yarn is 5 μm to 300 μm.

The textile prepared in the scheme is provided with the intermediate infrared radiation area and the heat-moisture comfortable area, and the intermediate infrared radiation yarns with the infrared transmittance not lower than 30% in the intermediate infrared radiation area can effectively transmit heat radiation generated to a human body outwards, so that the effect of heat radiation cooling is achieved; the heat and moisture comfortable area adopts the hydrophilic yarn, so that sweat of a human body can be transmitted outwards, the sweat can be evaporated to achieve the cooling effect, and the textile has obvious cooling effect and comfort; the textile prepared by the method also has the advantages of excellent air permeability, usability and washability, no harm to human skin, safety and environmental protection; the textile of the invention has simple preparation method and still has obvious cooling effect on the premise of lower preparation cost.

Drawings

Fig. 1 is a schematic view of a cooling textile according to example 1 of the present invention;

fig. 2 is a schematic view of a cooling textile according to example 2 of the present invention;

fig. 3 is a schematic view of a cooling textile according to embodiment 3 of the present invention;

fig. 4 is a schematic view of a cooling textile according to example 4 of the present invention;

fig. 5 is a schematic view of a cooling textile according to example 5 of the present invention;

FIG. 6 is a schematic representation of a textile prepared in example 2 to make a garment.

Description of reference numerals:

1-mid infrared radiation area a 1; 2-hot wet comfort area b 1; 3-mid infrared radiation area a 2; 4-hot wet comfort area b 2; 5-mid infrared radiation area a 3; 6-heat moisture comfort area b 3; 7-mid infrared radiation area a 4; 8-heat moisture comfort area b 4; 9-mid infrared radiation area a 5; 10-heat moisture comfort area b 5; 110-side by side composite fiber yarn; 120-polyethylene fiber yarn.

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 below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In an embodiment of the present invention, a cooling textile includes a plurality of intermediate infrared radiation areas and a plurality of heat and humidity comfort areas, and the plurality of intermediate infrared radiation areas and the plurality of heat and humidity comfort areas are arranged in a staggered manner; the plurality of intermediate infrared radiation areas are obtained by weaving first yarns, the plurality of heat and moisture comfort areas are obtained by weaving second yarns, and the first yarns are intermediate infrared radiation yarns with intermediate infrared transmittance not lower than 30%; the second yarn comprises a hydrophilic yarn.

In one embodiment, the ratio of the weaving number of the intermediate infrared radiation yarns to the hydrophilic yarns is 2-5: 1-2. The middle infrared radiation yarns reach the cooling effect through heat radiation, and the hydrophilic yarns reach the cooling through the mode that improves sweat evaporation and take away heat, and middle infrared radiation yarns and hydrophilic yarn setting through reasonable proportion can reach apparent cooling effect.

In one embodiment, the mid-infrared radiation yarn is olefin polymer fiber, natural fiber or blended yarn containing olefin polymer fiber.

In one embodiment, the preparation method of the olefin polymer fiber comprises the following steps:

according to the mass ratio, the ratio of 1:3.5, stirring and mixing the olefin polymer and the paraffin oil at a high speed at 180 ℃ to obtain mixed master batches;

preparing the mixed master batch into the paraffin olefin polymer composite fiber by a melt spinning method;

removing paraffin oil by adopting a dichloromethane extraction method to obtain the olefin polymer fiber.

In one embodiment, the olefin polymer fibers are one or two of polyethylene fibers and polypropylene fibers. Correspondingly, the olefin polymer is one or two of polyethylene and polypropylene.

In one embodiment, the polyethylene fibers are nanoporous polyethylene fibers.

In one embodiment, the polypropylene fibers are nanoporous polypropylene fibers.

The nano-porous polyethylene fibers and the nano-porous polypropylene fibers prepared in the application have the transmittance of mid-infrared radiation of more than 70%, only contain C-C, C-H bonds, and hardly absorb the mid-infrared radiation. The heat radiation of the human body is mainly concentrated in the wavelength range of 7-14 mu m, so that the heat of the human body can be effectively transmitted outwards through the heat radiation of the nano porous polyethylene fibers and the nano porous polypropylene fibers, thereby reducing the surface skin temperature of the human body by 1-3 ℃ and playing a role in cooling.

In one embodiment, the hydrophilic yarn is a side-by-side composite fiber prepared from polyethylene and nylon 6 in a mass ratio of 1: 1.

In one embodiment, the method for preparing the side-by-side composite fiber comprises the following steps:

respectively drying a polyethylene raw material and a nylon 6 raw material;

placing the dried polyethylene raw material in a first temperature control charging barrel to be heated and melted to obtain a molten polyethylene raw material;

placing the dried nylon 6 in a second temperature control charging barrel to be heated and melted to obtain a molten nylon 6 raw material;

and extruding the polyethylene raw material in a molten state and the nylon 6 raw material in a molten state through a single screw with parallel spinneret plates to obtain the parallel composite fibers.

In one embodiment, the heating temperature in the first temperature control cylinder is 165-260 ℃; the heating temperature in the second temperature control charging barrel is 250-300 ℃.

The hydrophilic yarn adopts the prepared parallel composite fibers, and the polyethylene raw material does not have hygroscopicity, but the nylon 6 has excellent hygroscopicity, so that the prepared parallel composite fibers can form a wicking effect, when a human body sweats, the nylon 6 in the heat and humidity comfortable area can absorb moisture, and the polyethylene does not absorb moisture, so that the parallel composite fibers are curled, gaps among the parallel composite fibers are enlarged, the air permeability and the hygroscopicity of textiles are increased, the sweat of the human body is better discharged, and the excellent cooling effect is achieved. When the human body does not sweat, the parallel fibers are restored to the original state, and the quality of the textile can be ensured. In addition, the polyethylene has middle infrared transparency, the nylon 6 has a better heat conductivity coefficient, and the combination of the polyethylene and the nylon 6 has a synergistic interaction effect, so that the skin feeling of the textile is improved, and the preparation of the textile is facilitated, and the remarkable cooling effect is achieved through heat radiation, heat conduction and heat convection.

In one embodiment, the polyethylene fiber is twisted by plying and twisting to spin the polyethylene yarn.

In one embodiment, the side-by-side composite fibers are spun into a side-by-side composite yarn by ply twisting.

In one embodiment, the mid-infrared radiation region has a multi-layer structure.

In one embodiment, the diameter of the mid-infrared radiation yarn is 5 μm to 300 μm.

In one embodiment, the hydrophilic yarn has a diameter of 5 μm to 300 μm.

In one embodiment, a plurality of the mid-ir regions are integrally formed with a plurality of the thermo-wet comfort regions.

In one embodiment, a plurality of the mid-ir regions and a plurality of the thermo-wet comfort regions are integrally formed by weaving or combining.

In one embodiment, the weaving pattern comprises one or more of weaving, knitting, and non-woven weaving.

In one embodiment, the woven structure comprises one or more of a plain structure, a twill structure, and a satin structure.

In one embodiment, the combination comprises one or more of sewing, bonding, and embroidering.

The textile prepared in the scheme is provided with the intermediate infrared radiation area and the heat-moisture comfortable area, and the intermediate infrared radiation yarns with the infrared transmittance not lower than 30% in the intermediate infrared radiation area can effectively transmit heat radiation generated to a human body outwards, so that the effect of heat radiation cooling is achieved; the heat and moisture comfortable area adopts the hydrophilic yarn, so that sweat of a human body can be transmitted outwards, the sweat can be evaporated to achieve the cooling effect, and the textile has obvious cooling effect and comfort; the textile prepared by the method also has the advantages of excellent air permeability, usability and washability, no harm to human skin, safety and environmental protection; the textile of the invention has simple preparation method and still has obvious cooling effect on the premise of lower preparation cost.

Embodiments of the present invention will be described in detail below with reference to specific examples.

Example 1:

a preparation method of a cooling textile comprises the following steps:

according to the mass ratio, polyethylene and paraffin oil with the proportion of 1:3.5 are stirred at a high speed and mixed uniformly at 180 ℃ to obtain mixed master batches; preparing the mixed master batch into the paraffin polyethylene composite fiber by a melt spinning method; removing paraffin oil by adopting a dichloromethane extraction method to obtain polyethylene fibers;

respectively drying a polyethylene raw material and a nylon 6 raw material in a mass ratio of 1: 1; placing the dried polyethylene raw material in a first temperature control charging barrel, and heating to 165 ℃ to obtain a molten polyethylene raw material; placing the dried nylon 6 in a second temperature control charging barrel, and heating to 250 ℃ to obtain a molten nylon 6 raw material; extruding a polyethylene raw material in a molten state and a nylon 6 raw material in a molten state through a single screw with parallel spinneret plates to obtain parallel composite fibers;

the warp density on the machine is 262 pieces/10 cm, the weft density on the machine is 254 pieces/10 cm, and the textile structure adopts plain weave. The polyethylene yarns are spun by selecting polyethylene fibers in a plying and twisting mode, and the parallel composite yarns are spun by selecting parallel composite fibers in a plying and twisting mode. The arrangement proportion of warp yarns is 4:1, weaving weft yarns by adopting the polyethylene yarns, and circularly weaving to prepare the stripe cooling textile.

As shown in fig. 1, the polyethylene fibers 120 and the side-by-side composite fibers 110 are arranged at intervals in the warp direction; in the weft direction, woven with said polyethylene fibers 120, a textile with mid-infrared radiation areas a1 and hot wet comfort areas b1 is obtained.

The textile prepared in the embodiment 1 has the intermediate infrared radiation area a1, and can transmit the heat of the human body to the outside in an infrared radiation mode, so that the temperature of the skin on the surface of the human body is reduced, and the cooling effect is achieved; the heat and moisture comfortable area b1 is formed by interweaving the parallel composite fibers 110 and the polyethylene fibers 120, can be in contact with the skin, quickly absorbs moisture on the surface of the skin, and quickly evaporates, so that heat on the surface of the skin is taken away, and the dryness and comfort of the textile are improved.

Example 2:

a preparation method of a cooling textile comprises the following steps:

according to the mass ratio, polyethylene and paraffin oil with the proportion of 1:3.5 are stirred at a high speed and mixed uniformly at 180 ℃ to obtain mixed master batches; preparing the mixed master batch into the paraffin polyethylene composite fiber by a melt spinning method; removing paraffin oil by adopting a dichloromethane extraction method to obtain polyethylene fibers;

respectively drying a polyethylene raw material and a nylon 6 raw material in a mass ratio of 1: 1; placing the dried polyethylene raw material in a first temperature control charging barrel, and heating to 260 ℃ to obtain a molten polyethylene raw material; placing the dried nylon 6 in a second temperature control charging barrel, and heating to 300 ℃ to obtain a molten nylon 6 raw material; extruding a polyethylene raw material in a molten state and a nylon 6 raw material in a molten state through a single screw with parallel spinneret plates to obtain parallel composite fibers;

the warp density on the machine is 262 pieces/10 cm, the weft density on the machine is 254 pieces/10 cm, and the textile structure adopts plain weave. The polyethylene yarns are spun by selecting polyethylene fibers in a plying and twisting mode, and the parallel composite yarns are spun by selecting parallel composite fibers in a plying and twisting mode. The arrangement proportion of warp yarns is 4:1, weaving weft yarns and parallel composite yarns according to the arrangement ratio of 4:1, and circularly weaving to prepare the grid cooling textile.

As shown in fig. 2, the polyethylene fibers 120 and the side-by-side composite fibers 110 are arranged at intervals in the warp direction; in the weft direction, the polyethylene fibers 120 and the side-by-side composite fibers 110 are woven in the warp direction at the same interval arrangement rule, so that the grid cooling textile with the intermediate infrared radiation area a2 and the heat and humidity comfort area b2 is obtained.

The textile prepared in the embodiment 2 becomes a grid textile with function division, and the intermediate infrared radiation area a2 can transmit the heat of the human body to the outside in an infrared radiation mode, so that the temperature of the skin on the surface of the human body is reduced, and the cooling effect is achieved; the heat and moisture comfortable area b2 is formed by interweaving the parallel composite fibers 110 and the polyethylene fibers 120, can be in contact with the skin, quickly absorbs moisture on the surface of the skin, and quickly evaporates, so that heat on the surface of the skin is taken away, and the dryness and comfort of the textile are improved.

Example 3:

a preparation method of a cooling textile comprises the following steps:

according to the mass ratio, polyethylene and paraffin oil with the proportion of 1:3.5 are stirred at a high speed and mixed uniformly at 180 ℃ to obtain mixed master batches; preparing the mixed master batch into the paraffin polyethylene composite fiber by a melt spinning method; removing paraffin oil by adopting a dichloromethane extraction method to obtain polyethylene fibers;

respectively drying a polyethylene raw material and a nylon 6 raw material in a mass ratio of 1: 1; placing the dried polyethylene raw material in a first temperature control charging barrel, and heating to 200 ℃ to obtain a molten polyethylene raw material; placing the dried nylon 6 in a second temperature control charging barrel, and heating to 280 ℃ to obtain a molten nylon 6 raw material; extruding a polyethylene raw material in a molten state and a nylon 6 raw material in a molten state through a single screw with parallel spinneret plates to obtain parallel composite fibers;

the warp density on the machine is 262 pieces/10 cm, the weft density on the machine is 254 pieces/10 cm, polyethylene fibers are selected to spin polyethylene yarns in a plying and twisting mode, and parallel composite fibers are selected to spin parallel composite yarns in a plying and twisting mode. The arrangement proportion of warp yarns is 4:1, weft yarns are regularly woven by adopting the polyethylene yarns, the middle infrared radiation area is woven in an upper-lower interweaving mode, the heat-humidity comfortable area is woven in an upper-lower interweaving mode, and the stripe cooling textile is prepared by circularly weaving.

As shown in fig. 3, the striped cooling textile prepared in example 3 has a mid-infrared radiation area a3 and a heat and humidity comfort area b3, and has a significant cooling effect after the test.

Example 4:

a preparation method of a cooling textile comprises the following steps:

according to the mass ratio, polyethylene and paraffin oil with the proportion of 1:3.5 are stirred at a high speed and mixed uniformly at 180 ℃ to obtain mixed master batches; preparing the mixed master batch into the paraffin polyethylene composite fiber by a melt spinning method; removing paraffin oil by adopting a dichloromethane extraction method to obtain polyethylene fibers;

respectively drying a polyethylene raw material and a nylon 6 raw material in a mass ratio of 1: 1; placing the dried polyethylene raw material in a first temperature control charging barrel, and heating to 240 ℃ to obtain a molten polyethylene raw material; placing the dried nylon 6 in a second temperature control charging barrel, and heating to 280 ℃ to obtain a molten nylon 6 raw material; extruding a polyethylene raw material in a molten state and a nylon 6 raw material in a molten state through a single screw with parallel spinneret plates to obtain parallel composite fibers;

the warp density on the machine is 262 pieces/10 cm, the weft density on the machine is 254 pieces/10 cm, and the textile structure adopts twill weave. The polyethylene yarns are spun by selecting polyethylene fibers in a plying and twisting mode, and the parallel composite yarns are spun by selecting parallel composite fibers in a plying and twisting mode. The arrangement proportion of warp yarns is 4:1, weaving weft yarns and parallel composite yarns in a polyethylene yarn regular mode, uniformly weaving the weft yarns in an upper-lower interweaving mode, and circularly weaving to prepare the stripe cooling textile.

As shown in fig. 4, the striped cooling textile prepared in example 4 has a mid-infrared radiation area a4 and a heat and humidity comfort area b4, and has a significant cooling effect after the test.

Example 5:

a preparation method of a cooling textile comprises the following steps:

according to the mass ratio, polyethylene and paraffin oil with the proportion of 1:3.5 are stirred at a high speed and mixed uniformly at 180 ℃ to obtain mixed master batches; preparing the mixed master batch into the paraffin polyethylene composite fiber by a melt spinning method; removing paraffin oil by adopting a dichloromethane extraction method to obtain polyethylene fibers;

respectively drying a polyethylene raw material and a nylon 6 raw material in a mass ratio of 1: 1; placing the dried polyethylene raw material in a first temperature control charging barrel, and heating to 170 ℃ to obtain a molten polyethylene raw material; placing the dried nylon 6 in a second temperature control charging barrel, and heating to 260 ℃ to obtain a molten nylon 6 raw material; extruding a polyethylene raw material in a molten state and a nylon 6 raw material in a molten state through a single screw with parallel spinneret plates to obtain parallel composite fibers;

the polyethylene yarns are spun by selecting polyethylene fibers in a plying and twisting mode, and the parallel composite yarns are spun by selecting parallel composite fibers in a plying and twisting mode. The fabric structure adopts a weft plain stitch, and the gram weight of the fabric is160g/m²And (3) mixing the polyethylene yarns with the parallel composite yarns according to the weight ratio of: feeding the materials in the proportion of 1 along the weft direction, and weaving the materials into loops to prepare the striped cooling textile. As shown in fig. 5, the striped cooling textile prepared in example 5 has a mid-infrared radiation area a5 and a heat and humidity comfort area b5, and has a significant cooling effect after the test.

Comparative example 1:

the difference from the example 1 is only that the cotton yarn and the parallel composite yarn are adopted for weaving, wherein the upper warp density adopts 262 pieces/10 cm, the upper weft density adopts 254 pieces/10 cm, the arrangement ratio of the warp yarn to the weft yarn is 4:1, adopting the cotton yarn to regularly weave in the weft yarns, and circularly weaving to prepare the stripe textile.

Comparative example 2:

the only difference from example 2 is: and weaving warp yarns and weft yarns by adopting the polyester yarn rule, and circularly weaving to prepare the textile.

In order to verify the relevant performance of the cooling textiles prepared by the present invention, the cooling textiles prepared in examples 1 to 4 and the textiles prepared in comparative examples 1 to 2 were compared in terms of relevant performance, and the results are shown in table 1.

The method for testing the infrared transmittance comprises the following steps: and (3) testing by adopting an integrating sphere mode of a Fourier transform infrared spectrometer, wherein the number of each group of test samples is 5, and the average value of the test results is taken. Q_maxThe test method comprises the following steps: testing the maximum transient heat flow value Q of the fabric in a very short time by adopting a KES-F7-II type cold-heat sensing tester_maxThe instantaneous feel of the fabric in contact with the skin is evaluated by this value. Q_maxA larger value indicates a greater heat flux at the moment of contact of the fabric with the skin, giving the person a cooler sensation and vice versa a warmer sensation. And (3) respectively testing the exposed temperature of the skin of the human body and the temperature of the skin covered by each fabric by using an infrared thermal imager, subtracting the exposed temperature of the skin from the measured temperature of each fabric, and comparing the temperature difference with the temperature difference of the comparative example 1 to obtain the temperature drop.

Table 1:

the data analysis in table 1 shows that the textile prepared by the invention has excellent heat dissipation and air permeability, and has the effects of efficient radiation cooling and efficient sweat evaporation cooling. The cotton yarn with the middle infrared transmittance lower than 30% is adopted in the comparative example 1, so that the infrared transmittance of the prepared textile is 0.3%, which is obviously inferior to that of the textile prepared in the embodiment, and the invention proves that the material with the middle infrared transmittance lower than 30% is adopted, which is beneficial to improving the heat dissipation performance of the textile; in the comparative example 2, the textile prepared by the conventional chemical fiber polyester yarn has the heat dissipation property obviously lower than that of the textile prepared by the example 2; in conclusion, the textile in the application is knitted by the polyethylene fiber and the parallel composite fiber in a proper proportion, and the parallel composite fiber prepared by the polyethylene fiber and the nylon 6 is used as the hydrophilic yarn, so that the cooling performance of the textile is improved.

The textile prepared in example 2 was prepared into clothes as shown in fig. 6, 200 volunteers were selected for fitting, the fitting period was 30 days, and fitting experience evaluation was performed on day 30, and the evaluation was performed by a scoring method, and the results are shown in table 2 below.

Table 2:

item	Temperature reduction	Air permeability	Comfort feature	Washing fastness
					Scoring	92	100	100	98

As can be seen from the data analysis in table 2, the clothing made from the textile in example 2 still has excellent cooling, breathability, comfort and washability.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.