阅读说明：本技术 一种抗菌吸湿发热复合面料及其制备方法 (Antibacterial moisture-absorbing heating composite fabric and preparation method thereof ) 是由 韩文超 于 2019-11-18 设计创作，主要内容包括：本发明涉及一种抗菌吸湿发热复合面料及其制备方法,其为三层一体式结构,从上至下依次为表层面料、芯层透汽膜和里层面料；表层为单面毛巾结构吸湿发热的摇粒绒面料,由涤纶低弹丝构成的地组织上织有由混纺纱构成的绒毛层,该混纺纱由超细涤纶和发热粘胶制备；里层为抗菌网眼针织布,其由涤纶纱、含有纳米银或抗菌金属氧化物的涤纶抗菌纱和弹性氨纶制备；里层面料将体表的湿气吸收并传导到表层面料,表层面料将湿气转化为热能,热能经芯层透汽膜缓慢传导至里层面料,从而实现复合面料持续吸湿放热的良性循环,本发明促进了人体微环境的稳定,使得穿戴者始终保持温暖、干爽、舒适的穿着体验,保证了面料穿戴时的舒适性、透湿性以及抗菌性能。(The invention relates to an antibacterial moisture-absorbing heating composite fabric and a preparation method thereof, wherein the antibacterial moisture-absorbing heating composite fabric is of a three-layer integrated structure and sequentially comprises a surface layer fabric, a core layer breathable film and an inner layer fabric from top to bottom; the surface layer is a polar fleece fabric with a single-sided towel structure and capable of absorbing moisture and generating heat, a fluff layer formed by blended yarns is woven on a ground structure formed by terylene low stretch yarns, and the blended yarns are prepared from superfine terylene and heating viscose; the inner layer is an antibacterial mesh knitted fabric which is prepared from polyester yarns, polyester antibacterial yarns containing nano silver or antibacterial metal oxide and elastic spandex; the inner fabric absorbs and transmits moisture on the body surface to the surface fabric, the surface fabric converts the moisture into heat energy, and the heat energy is slowly transmitted to the inner fabric through the core layer vapor permeable film, so that the virtuous cycle of continuous moisture absorption and heat release of the composite fabric is realized.)

1. The utility model provides an antibiotic moisture absorption compound surface fabric that generates heat which characterized in that: the composite fabric is of a three-layer integrated structure and sequentially comprises a surface layer fabric (1), a core layer breathable film (2) and an inner layer fabric (3) from top to bottom, wherein the surface layer fabric (1) is a polar fleece fabric capable of absorbing moisture and generating heat, and the inner layer fabric (3) is an antibacterial mesh knitted fabric.

2. The antibacterial moisture-absorbing heat-emitting composite fabric as claimed in claim 1, wherein: the polar fleece fabric is of a single-side towel structure and comprises a ground tissue formed by terylene low stretch yarns, wherein a fluff layer (11) formed by blended yarns is woven on the ground tissue, and the blended yarns are prepared from superfine terylene and heating viscose; the heating viscose is a moisture absorption heating fiber; the thickness of the fluff layer (11) is 0.5mm-1 mm.

3. The antibacterial moisture-absorbing heat-emitting composite fabric as claimed in claim 2, wherein: the polar fleece fabric comprises the following components in parts by weight: 30-60 parts of superfine polyester, 20-30 parts of heating viscose and 30-40 parts of polyester low stretch yarn.

4. The antibacterial moisture-absorbing heat-emitting composite fabric as claimed in claim 1, wherein: the antibacterial mesh knitted fabric is prepared from polyester yarns, polyester antibacterial yarns and elastic spandex; the polyester antibacterial yarn is polyester yarn containing nano silver or antibacterial metal oxide.

5. The antibacterial moisture-absorbing heat-emitting composite fabric according to claim 4, characterized in that: the antibacterial mesh knitted fabric comprises the following components in parts by weight: 83-93 parts of polyester yarn, 2-5 parts of polyester antibacterial yarn and 5-12 parts of elastic spandex.

6. The antibacterial moisture-absorbing heat-emitting composite fabric as claimed in claim 1, wherein: the meshes of the antibacterial mesh knitted fabric are uniformly distributed, and the distribution density is as follows: the number of meshes per inch in the warp direction is 10-13, and the number of meshes per inch in the weft direction is 9-12; the mesh of the antibacterial mesh knitted fabric is of a dot structure, and the diameter of the mesh is 0.4-0.6 mm.

7. The antibacterial moisture-absorbing heat-emitting composite fabric as claimed in claim 1, wherein: the core layer breathable film (2) is a TPU low-permeability film with a nano-microporous structure, and the thickness of the core layer breathable film (2) is 0.01-0.1 mm.

8. The antibacterial moisture-absorbing heat-emitting composite fabric as claimed in claim 1, wherein: the surface fabric (1), the core layer breathable film (2) and the inner layer fabric (3) form a composite fabric with a hierarchical structure through a sequential hot pressing process.

9. A method for preparing the antibacterial moisture-absorbing heat-emitting composite fabric as claimed in claim 1, which is characterized by comprising the following steps: the method comprises the following steps:

the first step is as follows: preparing weaving raw materials of the surface fabric (1), blended yarns prepared by mixing superfine terylene and heating viscose and terylene low stretch yarns;

the second step is that: taking the terylene low stretch yarn as ground texture, and weft-knitting a fluff layer (11) on the terylene low stretch yarn by the blended yarn to prepare grey cloth of the surface fabric (1);

the third step: the grey cloth of the surface layer fabric (1) in the second step is taken out of the machine and placed into a cylinder for dyeing to obtain dyed grey cloth of the surface layer fabric (1);

the fourth step: adding a raising agent into the dyed grey cloth of the surface layer fabric (1) in the third step, and drying and pre-shaping; the presetting temperature is 170-180 ℃, and the dyed grey cloth is subjected to fluffing and softening finishing through a padder;

the fifth step: brushing and shearing the surface fabric (1) in the fourth step, wherein the shearing length is 2-4 mm; and carrying out the shaking treatment on the surface layer fluff layer (11) to ensure that the thickness of the fluff layer (11) after the shaking process is 0.5-1mm, thus obtaining the shaking fluff fabric;

and a sixth step: preparing weaving raw materials of the inner layer fabric (3), polyester yarns, polyester antibacterial yarns and elastic spandex;

the seventh step: performing weft knitting on the polyester yarns, the polyester antibacterial yarns and the elastic spandex in the sixth step to obtain antibacterial mesh knitted fabrics, namely grey fabrics of the inner layer fabric (3);

eighth step: performing heat setting on the grey cloth of the middle-layer fabric (3) in the seventh step, wherein the heat setting temperature is 205 ℃, and the machine speed is 15Y/min;

the ninth step: taking the lining fabric (3) obtained in the eighth step off the machine and placing the lining fabric into a cylinder for dyeing to obtain dyed grey cloth of the lining fabric (3);

the tenth step: preparing a TPU low-permeability film as a core layer vapor-permeable film (2);

the eleventh step: attaching the surface layer fabric (1) in the fifth step to one side of the core layer breathable film (2), attaching and standing for 10-12 hours under the working conditions that the temperature is 85-90 ℃ and the machine speed is 20 m/min;

the twelfth step: and (3) attaching the inner layer fabric (3) in the ninth step to the other side of the core layer breathable film (2), and attaching the inner layer fabric and the core layer breathable film under the working conditions that the temperature is 85-90 ℃ and the machine speed is 25m/min to obtain the composite fabric with the three-layer structure.

10. The preparation method of the antibacterial moisture-absorbing heat-emitting composite fabric according to claim 9, characterized by comprising the following steps: in the third step, the dyeing of the grey cloth of the surface fabric (1) comprises the following steps:

the method comprises the following steps: adding a degreasing agent into the cylinder, heating to 90 ℃ at the speed of 1 ℃/min, and pretreating for 45 min;

step two: after the pretreatment of the first step, adding a high-temperature leveling agent, a chelating dispersant, glacial acetic acid and dye components into a cylinder, heating to 130 ℃ at the speed of 1 ℃/min, and dyeing for about 120 min;

step three: after the dyeing in the second step, cooling to 90 ℃ at the speed of 1 ℃/min, and preserving heat for 20 min; then continuously cooling to 60 ℃;

step four: adding soaping agent, and soaping for 20 min;

step five: the surface fabric (1) treated in the fourth step is changed into clear water and washed for 20 min;

step six: taking the surface fabric (1) out of the vat in the fifth step, and sequentially dehydrating, cutting and drying to obtain the dyed surface fabric (1);

in the ninth step, the dyeing of the grey cloth of the inner layer fabric (3) is the same as the dyeing of the grey cloth of the surface layer fabric (1).

Technical Field

The invention relates to the technical field of garment materials, in particular to an antibacterial moisture-absorbing heating composite material and a preparation method thereof.

Background

With the improvement of national living standard, the requirements of people on living quality are increased, including the requirements on functional textiles and the requirements on fabric comfort are also increased. In order to meet the market demand, more and more functional textiles are developed in the textile industry, such as cold-feel moisture-absorption quick-drying fabrics, antibacterial fabrics, vapor-permeable and water-repellent fabrics, thermal-insulation heating fabrics and the like.

Disclosure of Invention

The applicant provides the antibacterial moisture-absorbing heating composite fabric with a reasonable structure and the preparation method thereof aiming at the defects in the prior art, so that the fabric is ensured to have a good warm-keeping effect, and simultaneously the comfortableness, the moisture permeability and the antibacterial performance of the fabric are also ensured, the stability of the microenvironment of a human body is maintained, and the production cost of the fabric is greatly reduced while the grade of the fabric is improved.

The technical scheme adopted by the invention is as follows:

the utility model provides an antibiotic moisture absorption compound surface fabric that generates heat, compound surface fabric is three-layer integral type structure, includes surface layer surface fabric, sandwich layer vapor-permeable membrane and nexine surface fabric from last to down in proper order, surface layer surface fabric is the polar fleece surface fabric that shakes that the moisture absorption generates heat, the nexine surface fabric is antibiotic mesh looped fabric.

As a further improvement of the above technical solution:

the polar fleece fabric is of a single-face towel structure and comprises a ground tissue formed by terylene low stretch yarns, a fluff layer formed by blended yarns is woven on the ground tissue, and the blended yarns are prepared from superfine terylene and heating viscose glue; the heating viscose is a moisture absorption heating fiber; the thickness of the fluff layer is 0.5mm-1 mm.

The polar fleece fabric comprises the following components in parts by weight: 30-60 parts of superfine polyester, 20-30 parts of heating viscose and 30-40 parts of polyester low stretch yarn.

The antibacterial mesh knitted fabric is prepared from polyester yarns, polyester antibacterial yarns and elastic spandex; the polyester antibacterial yarn is polyester yarn containing nano silver or antibacterial metal oxide.

The antibacterial mesh knitted fabric comprises the following components in parts by weight: 83-93 parts of polyester yarn, 2-5 parts of polyester antibacterial yarn and 5-12 parts of elastic spandex.

The meshes of the antibacterial mesh knitted fabric are uniformly distributed, and the distribution density is as follows: the number of meshes per inch in the warp direction is 10-13, and the number of meshes per inch in the weft direction is 9-12; the mesh of the antibacterial mesh knitted fabric is of a dot structure, and the diameter of the mesh is 0.4-0.6 mm.

The core layer breathable film is a TPU low-permeability film with a nano-microporous structure, and the thickness of the core layer breathable film is 0.01-0.1 mm.

The surface fabric, the core layer breathable film and the inner layer fabric are sequentially subjected to a hot pressing process to form the composite fabric with the hierarchical structure.

The preparation method of the antibacterial moisture-absorbing heating composite fabric comprises the following steps:

the first step is as follows: preparing a weaving raw material of a surface fabric, blended yarn prepared by mixing superfine terylene and heating viscose, and terylene low stretch yarn;

the second step is that: taking the terylene low stretch yarns as ground texture, and performing weft knitting on the blended yarns on the terylene low stretch yarns to form a fluff layer to prepare grey cloth of surface fabric;

the third step: the grey cloth of the surface layer fabric in the second step is discharged from the machine and placed into a cylinder for dyeing to obtain dyed grey cloth of the surface layer fabric;

the fourth step: adding a raising agent into the dyed grey cloth of the surface layer fabric in the third step, and drying and pre-shaping; the presetting temperature is 170-180 ℃, and the dyed grey cloth is subjected to fluffing and softening finishing through a padder;

the fifth step: brushing and shearing the surface fabric in the fourth step, wherein the shearing length is 2-4 mm; carrying out shaking treatment on the surface layer fluff layer to enable the thickness of the fluff layer after the shaking procedure to be 0.5-1mm, and obtaining a shaking grain fluff fabric;

and a sixth step: preparing weaving raw materials of the lining fabric, polyester yarns, polyester antibacterial yarns and elastic spandex;

the seventh step: performing weft knitting on the polyester yarns, the polyester antibacterial yarns and the elastic spandex in the sixth step to obtain antibacterial mesh knitted fabrics, namely grey fabrics of the inner layer fabric;

eighth step: performing heat setting on the grey cloth of the inner layer fabric in the seventh step, wherein the heat setting temperature is 205 ℃, and the machine speed is 15Y/min;

the ninth step: discharging the lining fabric obtained in the eighth step, and placing the lining fabric into a cylinder for dyeing to obtain dyed grey cloth of the lining fabric;

the tenth step: preparing a TPU low-permeability film as a core layer vapor-permeable film;

the eleventh step: attaching the surface layer fabric in the fifth step to one side of the core layer breathable film, attaching the surface layer fabric at the temperature of 85-90 ℃ under the working condition of machine speed of 20m/min, and standing for 10-12 hours;

the twelfth step: and (3) attaching the inner layer fabric in the ninth step to the other side of the permeable membrane of the core layer, and attaching under the working conditions that the temperature is 85-90 ℃ and the machine speed is 25m/min to obtain the composite fabric with the three-layer structure.

In the third step, the dyeing of the grey cloth of the surface fabric comprises the following steps:

the method comprises the following steps: adding a degreasing agent into the cylinder, heating to 90 ℃ at the speed of 1 ℃/min, and pretreating for 45 min;

step two: after the pretreatment of the first step, adding a high-temperature leveling agent, a chelating dispersant, glacial acetic acid and dye components into a cylinder, heating to 130 ℃ at the speed of 1 ℃/min, and dyeing for about 120 min;

step three: after the dyeing in the second step, cooling to 90 ℃ at the speed of 1 ℃/min, and preserving heat for 20 min; then continuously cooling to 60 ℃;

step four: adding soaping agent, and soaping for 20 min;

step five: the surface fabric treated in the fourth step is changed into clear water and washed for 20 min;

step six: taking the surface fabric out of the vat in the fifth step, and sequentially dehydrating, splitting and drying to obtain the dyed surface fabric;

and in the ninth step, the dyeing of the grey cloth of the inner fabric is the same as the dyeing of the grey cloth of the surface fabric.

The invention has the following beneficial effects:

the invention has compact and reasonable structure, and the inner layer fabric is designed into the mesh knitted fabric structure, so that the skin-friendly effect is considered, and the moisture on the body surface is absorbed and transferred to the surface layer fabric at a higher speed than the traditional plain cloth type fabric; the surface layer fabric is a moisture-absorbing and heating polar fleece fabric, absorbed moisture is converted into heat energy, and the effective contact area of water molecules and moisture-absorbing and heating fibers is larger due to the villus layer structure of the surface layer, so that a better moisture-absorbing and heating effect is realized; the heat energy of surface layer surface fabric conversion slowly conducts to the nexine surface fabric through the ventilative membrane of sandwich layer to realize that compound surface fabric lasts the exothermic virtuous circle of moisture absorption, make the stability of human microenvironment, make the wearer remain throughout warm, dry and comfortable wearing experience, the practicality is strong, and user experience feels good.

The invention also comprises the following advantages:

the moisture absorption heating fibers are used as heating viscose and are prepared into blended yarns together with superfine terylene, and the blended yarns are woven to ground tissue to form surface fabric of a single-sided towel structure, namely the moisture absorption heating fibers with higher cost are combined with the superfine terylene and the terylene low stretch yarn to form composite surface fabric, so that the moisture absorption heating fibers are effectively used for absorbing water molecules in air and simultaneously emitting heat to achieve the functions of heating and keeping warm, and the purposes of ensuring heating and keeping warm and reducing cost are achieved;

the fluff layer on the surface fabric can also retain more static air, so that the fabric has better heat preservation effect;

the core layer vapor-permeable membrane adopts a TPU low-permeability membrane with a nano-microporous structure, so that water molecules can pass from the inner layer to the outer layer in one way, external moisture is effectively prevented from entering the inner layer, the dry and comfortable environment of the inner layer is guaranteed, and the core layer vapor-permeable membrane is waterproof and moisture-proof and has air permeability;

the terylene antibacterial yarn in the inner layer fabric is the terylene yarn containing nano silver or antibacterial metal oxide, so that the composite fabric has permanent antibacterial and bacteriostatic functions.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a working principle diagram of the present invention.

Fig. 3 is a weaving process diagram of the lining fabric of the present invention.

Fig. 4 is a schematic diagram of the arrangement of knitting needles when the lining fabric is knitted.

Fig. 5 is a triangular arrangement view of knitting needles when the lining fabric is knitted.

Fig. 6 is a comparison graph of the moisture absorption and heating effects of the composite fabric of the invention and a reference sample.

Wherein: 1. surface layer fabric; 2. a core layer vapor permeable membrane; 3. lining fabric; 11. a fluff layer; 4. the surface layer of the skin.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, the antibacterial moisture-absorbing and heat-generating composite fabric of the embodiment is of a three-layer integrated structure, and sequentially comprises a surface layer fabric 1, a core layer vapor-permeable membrane 2 and an inner layer fabric 3 from top to bottom, wherein the surface layer fabric 1 is a polar fleece fabric which absorbs moisture and generates heat, and the inner layer fabric 3 is an antibacterial mesh knitted fabric.

The polar fleece fabric is of a single-side towel structure and comprises a ground structure formed by terylene low stretch yarns, wherein a fluff layer 11 formed by blended yarns is woven on the ground structure, and the blended yarns are prepared from superfine terylene and heating viscose; the heating viscose is hygroscopic heating fiber; the thickness of the fluff layer 11 is 0.5mm-1mm, and the fluff layer 11 can retain more static air, so that the fabric has a better heat preservation effect.

The moisture absorption heating fibers are used as heating viscose and are prepared into blended yarns together with superfine terylene, the blended yarns are woven to ground tissue to form a surface fabric 1 of a single-face towel structure, namely the moisture absorption heating fibers with higher cost are combined with the superfine terylene and the terylene low stretch yarns to form a composite surface fabric 1, the moisture absorption heating fibers are effectively used for absorbing water molecules in air and simultaneously emit heat to achieve the functions of heating and keeping warm, and the purposes of heating and keeping warm and reducing cost are achieved.

The polar fleece fabric comprises the following components in parts by weight: 30-60 parts of superfine polyester, 20-30 parts of heating viscose and 30-40 parts of polyester low stretch yarn.

Setting the number of blended yarns to be 32-42s, wherein the yarn ratio of the blended yarns is 60-90% of superfine terylene and 10-40% of heating viscose; the specification of the superfine terylene is 75-120D/36-144F, the specification of the heating viscose is 80D-120D/78-144F, the specification of the terylene low stretch yarn is 120D-150D/100-144F, and the gram weight of the obtained surface fabric 1 is 150-380 gsm.

In the textile industry, D represents denier, and 1D represents that the mass of the yarn with the length of 9000m under the conditions of standard atmospheric pressure and official moisture regain is 1 g; f represents the number of monofilaments in one yarn; if 100D/50F shows that the specification of the yarn is as follows: 9000 meters long weigh 100 grams and are composed of 50 filaments.

The antibacterial mesh knitted fabric is prepared from polyester yarns, polyester antibacterial yarns and elastic spandex; the terylene antibacterial yarn is terylene yarn containing nano silver or antibacterial metal oxide, and the antibacterial metal oxide can be titanium dioxide, zinc oxide, silver oxide and the like; the bacteriostatic rate of the nano-silver to candida albicans, staphylococcus aureus and escherichia coli reaches 99%, and the polyester antibacterial yarn enables the composite fabric to have permanent antibacterial and bacteriostatic functions.

The antibacterial mesh knitted fabric comprises the following components in parts by weight: 83-93 parts of polyester yarn, 2-5 parts of polyester antibacterial yarn and 5-12 parts of elastic spandex.

In the inner layer fabric 3, the specification of the polyester antibacterial yarn is 75-150D/36-144F, the specification of the polyester yarn is 50-150D/36-144F, the specification of the elastic spandex is 20-70D, and the gram weight of the obtained inner layer fabric 3 is 80-280 gsm.

The meshes of the antibacterial mesh knitted fabric are regularly and uniformly distributed, and the distribution density is as follows: the number of meshes per inch in the warp direction is 10-13, and the number of meshes per inch in the weft direction is 9-12; the mesh of the antibacterial mesh knitted fabric is of a dot structure, and the diameter of the mesh is 0.4-0.6 mm.

The mesh distribution density on the inner layer fabric 3 made of the antibacterial knitted mesh fabric may be set as follows: the number of meshes per inch in the warp direction was 13, the number of meshes per inch in the weft direction was 12, and the diameter of the round dot-shaped meshes was 0.5 mm/piece.

The core layer vapor-permeable membrane 2 is a TPU low-permeability membrane with a nano micro-porous structure, and the thickness of the core layer vapor-permeable membrane 2 is 0.01-0.1 mm; have many micropores on the ventilative membrane 2 of sandwich layer, it enables the hydrone and passes through to the skin one-way from the nexine to effectively prevent outside moisture to get into the nexine, with the dry comfortable environment of guarantee nexine, have the gas permeability concurrently when the ventilative membrane 2 of sandwich layer is waterproof damp proof.

The surface layer fabric 1, the core layer breathable film 2 and the inner layer fabric 3 form a composite fabric with a hierarchical structure through a sequential hot pressing process; the weight ratio of the three layers of fabrics is as follows: 60-62%, 2-4%, 34-38%, preferably 62%, 4%, 34%.

As shown in fig. 2, the working principle of this embodiment is as follows:

moisture on the skin surface layer 4 is absorbed by the lining fabric 3 and is transmitted to the surface layer fabric 1 through the core layer breathable film 2; the surface fabric 1 continuously absorbs moisture and continuously releases heat, and the temperature rise amplitude of the surface fabric 1 can reach 2-5 ℃ in a short time;

the heat energy converted by the surface fabric 1 is slowly transferred to the inner fabric 3 through the core layer vapor permeable membrane 2, so that the virtuous cycle of continuous moisture absorption and heat release of the composite fabric is realized, the stability of the microenvironment of a human body is promoted, and the wearer can always keep warm, dry and comfortable wearing experience.

The preparation method of the antibacterial moisture-absorbing heating composite fabric comprises the following steps:

the first step is as follows: preparing weaving raw materials of the surface fabric 1, blended yarns prepared by mixing superfine terylene and heating viscose and terylene low stretch yarns;

the second step is that: taking the terylene low stretch yarns as ground texture, and performing weft knitting on the blended yarns on the terylene low stretch yarns to form a fluff layer to prepare grey cloth of the surface fabric 1;

the third step: the grey cloth of the surface layer fabric 1 in the second step is taken out of the machine and placed into a cylinder for dyeing to obtain dyed grey cloth of the surface layer fabric 1;

the fourth step: adding a raising agent into the dyed grey cloth of the surface layer fabric 1 in the third step, and drying and pre-shaping; the presetting temperature is 170-180 ℃, and the dyed grey cloth is subjected to fluffing and softening finishing through a padder;

the fifth step: brushing and shearing the surface fabric 1 in the fourth step, wherein the shearing length is 2-4 mm; carrying out shaking treatment on the surface layer fluff layer 11 to enable the thickness of the fluff layer 11 after the shaking procedure to be 0.5-1mm, and obtaining a shaking fleece fabric;

selecting blended yarn with the count of 32s, wherein the yarn ratio of the blended yarn is 89.5% of superfine terylene and 10.5% of heating viscose; selecting the polyester low stretch yarn with the specification of 120D/144F as ground tissue, and selecting a 34' multiplied by 24G single-face machine table to weave the surface layer fabric 1 with a single-face towel structure, wherein the width and the gram weight of the obtained surface layer fabric 1 are 150cm multiplied by 240 gsm.

And a sixth step: preparing weaving raw materials of the lining fabric 3, polyester yarns, polyester antibacterial yarns and elastic spandex;

the seventh step: performing weft knitting on the polyester yarns, the polyester antibacterial yarns and the elastic spandex in the sixth step to obtain antibacterial mesh knitted fabrics, namely grey fabrics of the inner layer fabric 3;

eighth step: performing heat setting on the grey cloth of the inner layer fabric 3 in the seventh step, wherein the heat setting temperature is 205 ℃, and the machine speed is 15Y/min;

the ninth step: taking the lining fabric 3 obtained in the eighth step out of the machine and placing the lining fabric in a cylinder for dyeing to obtain dyed grey cloth of the lining fabric 3;

selecting polyester antibacterial yarn with the specification of 75D/72F, polyester with the specification of 50D/72F and elastic spandex with the specification of 20D; a32' -32G superfine needle single-side large-profile machine table is selected, the obtained lining fabric 3 is of a mesh structure, the yarn ratio of the mesh structure is 95% of terylene, 5% of elastic spandex, and the width and the gram weight of the lining fabric 3 are 150cm multiplied by 120 gsm.

The tenth step: preparing a TPU low-permeability film as a core layer vapor-permeable film 2;

the eleventh step: attaching the surface fabric 1 in the fifth step to one side of the core layer breathable film 2, attaching the surface fabric at the temperature of 85-90 ℃ under the working condition of the machine speed of 20m/min, and standing for 10-12 hours;

the twelfth step: and (3) attaching the inner fabric 3 in the ninth step to the other side of the core layer breathable film 2, and attaching under the working conditions that the temperature is 85-90 ℃ and the machine speed is 25m/min to obtain the composite fabric with the three-layer structure.

In the seventh step, when the inner fabric 3, namely the antibacterial mesh knitted fabric, is woven, knitting is performed as shown in fig. 3, 4 and 5, ①②③④⑤⑥ in fig. 3 and 5 is the number of paths of yarn feeding, and six paths of yarn feeding are in total, 1, 2 and 3 in the upper, middle and lower rows in fig. 4 are the numbers of different knitting needles, namely a needle number 1, a needle number 2 and a needle number 3 respectively, in fig. 5, a symbol reverse V represents a stitch triangle, a symbol reverse U represents a stitch triangle, a symbol minus represents a float triangle, when the knitting needles pass through the corresponding triangles, the yarns in weaving show a stitch, stitch or miss state, knitting is performed, the upper machine knitting is performed in the manner shown in fig. 3, 4 and 5, six paths of knitting are a complete fabric knitting cycle, in fig. 5, the lower disc triangles of the first path of yarn feeding are not stitch cams, which correspond to a spandex path in fig. 3, the knitting is performed, other paths are all cams, and the other paths are loops of knitted fabric, namely, and the antibacterial mesh layer is knitted by using antibacterial mesh 3972, so that the antibacterial mesh fabric is obtained by feeding the antibacterial mesh layer 3, 5, 3, and 5, and the antibacterial mesh layer is obtained by using the antibacterial mesh layer ①②③④⑤⑥.

In the third step, the dyeing of the grey cloth of the surface fabric 1 comprises the following steps:

the method comprises the following steps: adding a degreasing agent into the cylinder, heating to 90 ℃ at the speed of 1 ℃/min, and pretreating for 45 min;

step two: after the pretreatment of the first step, adding a high-temperature leveling agent, a chelating dispersant, glacial acetic acid and dye components into a cylinder, heating to 130 ℃ at the speed of 1 ℃/min, and dyeing for about 120 min;

step three: after the dyeing in the second step, cooling to 90 ℃ at the speed of 1 ℃/min, and preserving heat for 20 min; then continuously cooling to 60 ℃;

step four: adding soaping agent, and soaping for 20 min;

step five: the surface fabric 1 treated in the fourth step is changed into clear water and washed for 20 min;

step six: taking the surface fabric 1 obtained in the fifth step out of the cylinder, and sequentially dehydrating, splitting and drying to obtain the dyed surface fabric 1.

In the ninth step, the grey cloth of the inner fabric 3 is dyed in the same manner as the grey cloth of the surface fabric 1.

The composite fabric of the present embodiment is compared with the existing common moisture absorption and heat generation fabric (reference sample) to illustrate the moisture absorption and heat generation effect.

The same size samples and reference samples (20cm x 20cm) were taken, treated in a desiccator for four hours and placed in a dispenser overnight;

treating the placed sample and the reference sample in a constant temperature and humidity box for two hours at the temperature of 20 ℃ and the humidity of 40%;

finally, the samples and the reference samples were subjected to temperature measurements over time in a constant temperature and humidity chamber at a temperature of 20 ℃ and a humidity of 90%, as shown in the following table and represented by the line diagram in FIG. 6:

the test results show that the maximum hygroscopic heating effect of the sample is 215.8% of (23.8-19.7)/(21.6-19.7) of the reference sample, and the temperature of the final sample fabric is maintained at 21.3 ℃ which is higher than that of the reference sample fabric at 20.2 ℃, so that the fabric of the embodiment has better heat preservation effect.

The composite fabric obtained by the invention has comfortable, moisture permeable, heating and antibacterial properties, so that the stability of a human body microenvironment is effectively maintained, and the experience effect of a wearer is good.

The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.