Three-layer windproof, warm and antistatic worsted fabric and preparation method thereof

Abstract

The present invention provides a three-layer windproof, warm and anti-static worsted fabric and a preparation method thereof. The fabric comprises a surface fabric, a middle fabric and an inner fabric; the warp yarns of the surface fabric and the warp yarns of the inner fabric alternately sink and float, and are interwoven with the weft yarns to form an intermediate space; the middle fabric is distributed in the hollow space formed by the surface fabric and the inner fabric; the surface fabric, the middle fabric and the inner fabric are woven into a one-time formation; the preparation method comprises dyeing, spinning, weaving and dyeing and finishing processes. The worsted fabric combines the advantages of velvet and glossy fabrics, and has windproof, warm and wear-resistant properties; at the same time, by adding 0.5% conductive fiber to the surface fabric and the inner fabric, the fabric has anti-static properties. The worsted fabric preparation method has the advantages of simple process, easy control and easy implementation.

Description

Technical Field

[0001] The invention relates to the technical field of worsted fabrics, and in particular to a three-layer windproof, warm-keeping and antistatic worsted fabric and a preparation method thereof. Background Art

[0002] Current worsted fabrics are usually single-layer or double-layer designs. Worsted fabrics are finished by shrinking or brushing to increase the density of the fabric, thereby reducing the internal gaps in the fabric to enhance the windproof and warmth-keeping effects of the fabric.

[0003] After shrinking or brushing, a layer of fluff will form on the surface of worsted fabrics, which is prone to pilling, shedding and other phenomena that affect the appearance during use. Fabrics that are not shrinked or brushed have a smooth surface and do not have problems such as pilling or shedding. However, the structure of this type of fabric is loose, there are many gaps on the surface of the fabric, and its windproof and thermal insulation properties are poor.

[0004] In summary, it can be seen that both glossy fabrics and velvet fabrics have certain problems during wearing, and it is difficult to have both warmth retention and good appearance, which limits the application of worsted fabrics. It can be seen that providing a fabric that has both warmth retention and good appearance during wearing has good market prospects. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides a three-layer windproof, warm and anti-static worsted fabric and a preparation method thereof. The fabric includes a surface fabric, a middle fabric and an inner fabric; the middle fabric is distributed as a filler in the hollow space formed by the surface fabric and the inner fabric. The worsted fabric combines the advantages of suede and glossy fabrics, has windproof, warm and wear-resistant properties, and effectively overcomes the shortcomings of suede or brushed fabrics that are warm but not wear-resistant, and glossy fabrics that are wear-resistant but not warm; at the same time, by adding 0.5% conductive fiber to the surface fabric and the inner fabric, the fabric has anti-static properties. The worsted fabric preparation method has the advantages of simple process, easy control and easy implementation.

[0006] The technical solution of the present invention is as follows:

[0007] A three-layer windproof, warm and anti-static worsted fabric, comprising a surface layer fabric, a middle layer fabric and an inner layer fabric;

[0008] The warp yarns of the surface fabric and the warp yarns of the inner fabric alternately sink and float during the weaving process and are interlaced with the weft yarns, so that the surface fabric and the inner fabric alternately sink and float, thereby realizing the layer change of the surface and inner fabrics, thereby forming an intermediate space through the layer change;

[0009] The middle layer fabric is distributed as a filler in the hollow space formed by the surface layer fabric and the inner layer fabric;

[0010] The surface fabric, the middle fabric and the inner fabric are formed by weaving at one time.

[0011] The surface fabric and the inner fabric are connected by exchanging layers to form a quilted appearance effect; the middle fabric is distributed in the hollow space formed by the surface fabric and the inner fabric, and does not participate in the interweaving of the fabric body.

[0012] Furthermore, the average floating length of the surface fabric is similar to the average floating length of the inner fabric.

[0013] Furthermore, the surface fabric and the inner fabric are both 1 / 1 plain weave or 2 / 2 twill weave.

[0014] Furthermore, the surface fabric and the inner fabric structure and the selvedge structure should match; the warp yarn arrangement ratio of the surface fabric and the inner fabric is 1:1, and the weft yarn arrangement ratio of the surface fabric, the middle fabric, and the inner fabric is 1:1:1.

[0015] Furthermore, the selvedge weave matches the body weave, when the surface fabric and the inner fabric are 1 / 1 plain weave, the selvedge weave is 4 / 4, and when the surface fabric and the inner fabric are 2 / 2 twill weave, the selvedge weave is 6 / 6.

[0016] Furthermore, the warp yarn and weft yarn used for weaving the surface fabric and the inner fabric have the same composition, which are high-count yarns obtained by blending 0.5% conductive fiber, 9.5% mulberry silk and 90% wool; the yarn count is 2 / 98Nm-2 / 78Nm, the twist direction is Z / S, the single yarn twist coefficient is 80-100, and the ply yarn twist coefficient is 140-180; the addition of conductive fiber can make the fabric have anti-static properties in dry and cold environments; and by controlling the yarn twist coefficient, the anti-pilling performance of the finished fabric can be effectively enhanced.

[0017] Furthermore, the yarn of the middle layer fabric is a weak-twist parallel yarn, spun and processed using our company's patented technology (a spinning method for worsted parallel fancy yarn ZL201910853167.5), with a yarn count of 3 / 30Nm-3 / 18Nm, a composition of 78%-87% wool, 13%-22% 20D silkworm filament, a twist direction of Z / S / Z, a single yarn twist coefficient of 80-100, a double yarn twist coefficient of 100-150, and a finished yarn twist coefficient of 100-160.

[0018] In this fabric, the position of the middle fabric in the fabric surface is fixed by interweaving with the selvedge, so as to facilitate dyeing and finishing. The selvedge warp yarns need to be interwoven with the surface fabric weft yarns, the lining fabric weft yarns and the middle fabric yarns. The selvedge is tighter than the surface fabric and the lining fabric. The selvedge needs to be raw. The selvedge structure matches the surface fabric and the lining fabric. When the surface fabric and the lining fabric are 1 / 1 plain weave, the selvedge structure is 4 / 4. When the surface fabric and the lining fabric are 2 / 2 twill weave, the selvedge structure is 6 / 6.

[0019] Furthermore, the preparation method of the above-mentioned worsted fabric includes a dyeing process, a spinning process, a weaving process and a dyeing and finishing process;

[0020] The dyeing process is as follows: dyeing in a dye vat, drying, and mixing;

[0021] The spinning process is: wool top, one recombing needle, two recombing needles, three recombing needles, combing machine, one combing needle, two combing needles, one front spinning needle, two front spinning needles, three front spinning needles, four front spinning needles, roving, spun yarn, winding, doubling, double twisting, and steaming yarn;

[0022] The weaving process is: warping, drawing in, reeding, weaving, blank inspection, and raw repair;

[0023] The dyeing and finishing procedures are: singeing, flat washing and boiling, double-box drying, intermediate inspection, repair, continuous steaming, open steaming, pre-shrinking, and finished products.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. The worsted fabric provided by the present invention combines the advantages of suede and glossy fabrics, has windproof, warmth-keeping and wear-resistant properties, and effectively overcomes the shortcomings of suede or brushed fabrics that are warm but not wear-resistant, and glossy fabrics that are wear-resistant but have poor warmth retention; at the same time, by adding 0.5% conductive fiber to the surface fabric and the inner fabric, the fabric has antistatic properties.

[0026] 2. The worsted fabric provided by the present invention has been tested and the pilling index of the surface of the fabric is better than the level 3-4 requirements of the combed wool fabric GB / T26382-2011 standard; the thermal insulation rate is better than the textile industry standard FZ / T73022-2019 knitted thermal underwear thermal insulation rate ≥ 30% requirement, the thermal insulation rate of the double-layer fabric with the same structure is 14.35%, and the thermal insulation rate of the three-layer fabric is significantly better than the double-layer fabric with the same structure; the antistatic property is tested in accordance with the national standard GB / T12703.2-2021, and the fabric charge surface density meets the requirement of not exceeding 7uC / m2.

[0027] 3. The method for preparing worsted fabrics provided by the present invention has the advantages of being simple, easy to control and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is the basic organization diagram before changing the layers of surface fabric and lining fabric.

[0030] Figure 2 This is the basic organization diagram after the surface fabric and the lining fabric are replaced.

[0031] Figure 3 This is the basic fabric structure diagram used in the example.

[0032] In the figure, 1-surface warp yarn, 2-inner warp yarn, 3-surface weft yarn, 4-middle weft yarn, 5-inner weft yarn, X-interlacing point of warp yarn and weft yarn. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] Example 1

[0035] A three-layer windproof, warm and antistatic worsted fabric, the preparation method of the worsted fabric comprising a dyeing process, a spinning process, a weaving process and a dyeing and finishing process;

[0036] The dyeing process is: dyeing in dye vats, drying, and blending;

[0037] Dyeing process feeding:

[0038] The proportion of surface fabric warp yarn and surface fabric weft yarn is: 100S wool 90%, mulberry silk 9.5%, conductive fiber 0.5%, blended to obtain high count yarn;

[0039] The proportion of the inner layer fabric warp yarn and inner layer fabric weft yarn is: 100S wool 90%, mulberry silk 9.5%, conductive fiber 0.5%, blended to obtain high count yarn;

[0040] Middle layer fabric weft yarn ratio: 100S wool 87% 20D silk filament 13%;

[0041] The spinning process is: wool top, recombing one needle, recombing two needles, recombing three needles, combing machine, combing one needle, combing two needles, front spinning one needle, front spinning two needles, front spinning three needles, front spinning four needles, roving, spun yarn, winding, doubling, twisting, steaming yarn;

[0042] Spinning process yarn specifications:

[0043] Specifications of surface fabric warp and weft yarn: yarn count 2 / 98Nm, twist direction Z / S, single yarn twist coefficient 90, yarn twist coefficient 160;

[0044] Specifications of inner layer fabric warp yarn and inner layer fabric weft yarn: yarn count 2 / 98Nm, twist direction Z / S, single yarn twist coefficient 90, yarn twist coefficient 160;

[0045] Specifications of the middle fabric weft yarn: The middle fabric yarn is a weak twist parallel yarn, which is spun and processed using wool and 20D silkworm filament using our patented technology (a spinning method for worsted parallel fancy yarn ZL201910853167.5); the composition is 87% wool, 13% 20D silkworm filament, yarn count 3 / 18Nm, twist direction Z / S / Z, single yarn twist coefficient 85, double yarn twist coefficient 100, and yarn twist coefficient 105;

[0046] The weaving process is: warping, drawing in, reeding, weaving, blank inspection, and raw repair;

[0047] Weaving process design:

[0048] The warp yarn of the surface fabric and the warp yarn of the inner fabric are arranged in a ratio of 1:1, and the weft yarn of the surface fabric, the weft yarn of the middle fabric, and the weft yarn of the inner fabric are arranged in a ratio of 1:1:1; the selvedge structure matches the structure of the surface fabric and the inner fabric, the structure of the surface fabric and the inner fabric is 1 / 1 plain weave, and the selvedge structure is 4 / 4;

[0049] The surface fabric, the middle fabric and the inner fabric are woven into a single process;

[0050] The dyeing and finishing process includes: singeing, flat washing and boiling, double-box drying, intermediate inspection, repair, continuous steaming, open steaming, pre-shrinking, and finished products;

[0051] A short-process technology design is adopted. In order to maintain the three-dimensional appearance of the fabric, the dyeing and finishing process uses continuous steaming and open steaming instead of tank steaming to reduce the pressure on the fabric during the dyeing and finishing process.

[0052] The worsted fabric obtained by the method is designed to alternately sink and float the surface warp and the inner warp during the weaving process, and interweave with the weft yarn to form a surface fabric and an inner fabric that alternately sink and float, thereby realizing the layer exchange of the surface and inner fabrics. The surface fabric and the inner fabric form a hollow space by layer exchange, and the middle fabric is distributed as a filler in the hollow space formed by the surface fabric and the inner fabric, thereby obtaining a three-layer windproof, warm and antistatic worsted fabric;

[0053] The specifications of the worsted fabric are: warp density 700 threads / 10cm, weft density 840 threads / 10cm; the worsted fabric is connected by exchanging layers of the surface fabric and the inner fabric to form a quilted appearance effect; the middle fabric is distributed in the hollow space formed by the surface fabric and the inner fabric, and does not participate in the interweaving of the fabric body.

[0054] Fabric test, surface pilling 4-5, better than the national standard GB / T26382-2011 combed wool fabric pilling 3-4 requirements; thermal insulation rate 50.25%, better than the textile industry standard FZ / T73022-2019 knitted thermal underwear thermal insulation rate ≥ 30% requirement; antistatic property is tested according to the national standard GB / T12703.2-2021, charge surface density 6.5uC / m 2 , meet the requirement of no more than 7uC / m 2 Require.

[0055] Example 2

[0056] A three-layer windproof, warm and antistatic worsted fabric, the preparation method of the worsted fabric comprising a dyeing process, a spinning process, a weaving process and a dyeing and finishing process;

[0057] The dyeing process is: dyeing in dye vats, drying, and blending;

[0058] Dyeing process feeding:

[0059] The proportion of warp yarn and weft yarn of surface fabric is: 90% 90S wool, 9.5% mulberry silk, 0.5% conductive fiber, and the blended yarn is high count yarn;

[0060] The proportion of the inner layer fabric warp yarn and inner layer fabric weft yarn is: 90% 90S wool, 9.5% mulberry silk, and 0.5% conductive fiber, and the blended yarn is high count yarn;

[0061] Middle layer fabric weft yarn ratio: 90S wool 87% 20D silk filament 13%;

[0062] The spinning process is: wool top, recombing one needle, recombing two needles, recombing three needles, combing machine, combing one needle, combing two needles, front spinning one needle, front spinning two needles, front spinning three needles, front spinning four needles, roving, spun yarn, winding, doubling, twisting, steaming yarn;

[0063] Spinning process yarn specifications:

[0064] Specifications of surface fabric warp and surface fabric weft: After blending, the obtained high-count yarn has a yarn count of 2 / 88Nm, twist direction Z / S, single yarn twist coefficient 85, and yarn twist coefficient 150;

[0065] Specifications of inner layer fabric warp yarn and inner layer fabric weft yarn: after blending, the obtained high count yarn has a yarn count of 2 / 88Nm, twist direction Z / S, single yarn twist coefficient 85, and yarn twist coefficient 150;

[0066] Specifications of the middle fabric weft yarn: The middle fabric yarn is a weak twist parallel yarn, which is spun and processed using wool and 20D silkworm filament using our patented technology (a spinning method for worsted parallel fancy yarn ZL201910853167.5), with a composition of 87% wool and 13% 20D silkworm filament, yarn count 3 / 18Nm, twist direction Z / S / Z, single yarn twist coefficient 85, double yarn twist coefficient 100, and yarn twist coefficient 105;

[0067] The weaving process is: warping, drawing in, reeding, weaving, blank inspection, and raw repair;

[0068] Weaving process design:

[0069] The warp yarn of the surface fabric and the warp yarn of the inner fabric are arranged in a ratio of 1:1, and the weft yarn of the surface fabric, the weft yarn of the middle fabric, and the weft yarn of the inner fabric are arranged in a ratio of 1:1:1; the selvedge structure matches the structure of the surface fabric and the inner fabric, the structure of the surface fabric and the inner fabric is 1 / 1 plain weave, and the selvedge structure is 4 / 4;

[0070] The surface fabric, the middle fabric and the inner fabric are woven into a single process;

[0071] The dyeing and finishing process includes: singeing, flat washing and boiling, double-box drying, intermediate inspection, repair, continuous steaming, open steaming, pre-shrinking, and finished products;

[0072] A short-process technology design is adopted. In order to maintain the three-dimensional appearance of the fabric, the dyeing and finishing process uses continuous steaming and open steaming instead of tank steaming to reduce the pressure on the fabric during the dyeing and finishing process.

[0073] The worsted fabric obtained by the method is designed to alternately sink and float the surface warp and the inner warp during the weaving process, and interweave with the weft yarn to form a surface fabric and an inner fabric that alternately sink and float, thereby realizing the layer exchange of the surface and inner fabrics. The surface fabric and the inner fabric form a hollow space by layer exchange, and the middle fabric is distributed as a filler in the hollow space formed by the surface fabric and the inner fabric, thereby obtaining a three-layer windproof, warm and antistatic worsted fabric;

[0074] The specifications of the worsted fabric are: warp density 663 threads / 10cm, weft density 810 threads / 10cm; the worsted fabric is connected by exchanging layers of the surface fabric and the inner fabric to form a quilted appearance effect; the middle fabric is distributed in the hollow space formed by the surface fabric and the inner fabric, and does not participate in the interweaving of the fabric body.

[0075] Fabric test: pilling of the surface is level 4-5, which is better than the national standard GB / T26382-2011 combed wool fabric pilling level 3-4 requirement; thermal insulation rate is 49.55%, which is better than the textile industry standard FZ / T73022-2019 knitted thermal underwear thermal insulation rate ≥ 30% requirement; antistatic property is tested according to the national standard GB / T12703.2-2021, with a charge surface density of 6.6uC / m 2 , meet the requirement of no more than 7uC / m 2 Require.

[0076] Example 3

[0077] A three-layer windproof, warm and antistatic worsted fabric, the preparation method of the worsted fabric comprising a dyeing process, a spinning process, a weaving process and a dyeing and finishing process;

[0078] The dyeing process is: dyeing in dye vats, drying, and blending;

[0079] Dyeing process feeding:

[0080] The proportion of surface fabric warp yarn and surface fabric weft yarn is: 80S wool 90%, mulberry silk 9.5%, conductive fiber 0.5%, blended to obtain high count yarn;

[0081] The proportion of the inner layer fabric warp yarn and inner layer fabric weft yarn is: 80S wool 90%, mulberry silk 9.5%, conductive fiber 0.5%, blended to obtain high count yarn;

[0082] Middle layer fabric weft yarn ratio: 80S wool 87% 20D silk filament 13%;

[0083] The spinning process is: wool top, recombing one needle, recombing two needles, recombing three needles, combing machine, combing one needle, combing two needles, front spinning one needle, front spinning two needles, front spinning three needles, front spinning four needles, roving, spun yarn, winding, doubling, twisting, steaming yarn;

[0084] Spinning process yarn specifications:

[0085] Specifications of surface fabric warp and surface fabric weft: After blending, the obtained high-count yarn has a yarn count of 2 / 78Nm, twist direction Z / S, single yarn twist coefficient 80, and yarn twist coefficient 140;

[0086] Specifications of inner layer fabric warp yarn and inner layer fabric weft yarn: after blending, the obtained high count yarn has a yarn count of 2 / 78Nm, twist direction Z / S, single yarn twist coefficient 80, and yarn twist coefficient 140;

[0087] Specifications of the middle fabric weft yarn: The middle fabric yarn is a weak twist parallel yarn, which is spun and processed using wool and 20D silkworm filament using our patented technology (a spinning method for worsted parallel fancy yarn ZL201910853167.5), with a composition of 87% wool and 13% 20D silkworm filament, yarn count 3 / 18Nm, twist direction Z / S / Z, single yarn twist coefficient 85, double yarn twist coefficient 100, and yarn twist coefficient 105;

[0088] The weaving process is: warping, drawing in, reeding, weaving, blank inspection, and raw repair;

[0089] Weaving process design:

[0090] The warp yarn of the surface fabric and the warp yarn of the inner fabric are arranged in a ratio of 1:1, and the weft yarn of the surface fabric, the weft yarn of the middle fabric, and the weft yarn of the inner fabric are arranged in a ratio of 1:1:1; the selvedge structure matches the structure of the surface fabric and the inner fabric, the structure of the surface fabric and the inner fabric is 1 / 1 plain weave, and the selvedge structure is 4 / 4;

[0091] The surface fabric, the middle fabric and the inner fabric are woven into a single process;

[0092] The dyeing and finishing process includes: singeing, flat washing and boiling, double-box drying, intermediate inspection, repair, continuous steaming, open steaming, pre-shrinking, and finished products;

[0093] A short-process technology design is adopted. In order to maintain the three-dimensional appearance of the fabric, the dyeing and finishing process uses continuous steaming and open steaming instead of tank steaming to reduce the pressure on the fabric during the dyeing and finishing process.

[0094] The worsted fabric obtained by the method is designed to alternately sink and float the surface warp and the inner warp during the weaving process, and interweave with the weft yarn to form a surface fabric and an inner fabric that alternately sink and float, thereby realizing the layer exchange of the surface and inner fabrics. The surface fabric and the inner fabric form a hollow space by layer exchange, and the middle fabric is distributed as a filler in the hollow space formed by the surface fabric and the inner fabric, thereby obtaining a three-layer windproof, warm and antistatic worsted fabric;

[0095] The specifications of the worsted fabric are: warp density 624 threads / 10cm, weft density 780 threads / 10cm; the worsted fabric is connected by exchanging layers of the surface fabric and the inner fabric to form a quilted appearance effect; the middle fabric is distributed in the hollow space formed by the surface fabric and the inner fabric, and does not participate in the interweaving of the fabric body.

[0096] Fabric test, the pilling of the surface is level 4-5, which is better than the national standard GB / T26382-2011 combed wool fabric pilling level 3-4 requirements; the thermal insulation rate is 47.25%, which is better than the textile industry standard FZ / T73022-2019 knitted thermal underwear thermal insulation rate ≥ 30% requirement; antistatic property is tested according to the national standard GB / T12703.2-2021, the charge surface density is 6.6uC / m 2 , meet the requirement of no more than 7uC / m 2 Require.

[0097] Comparative Example 1

[0098] The difference between Comparative Example 1 and Example 1 is that the worsted fabric is a double-layer fabric and does not include an intermediate layer. The preparation method of the fabric includes a dyeing process, a spinning process, a weaving process and a dyeing and finishing process.

[0099] The dyeing process is as follows: the same as in Example 1;

[0100] Dyeing process feeding: same as Example 1;

[0101] The spinning process is as follows: the same as in Example 1;

[0102] The specifications of the surface fabric warp yarn and the surface fabric weft yarn are the same as those in Example 1;

[0103] The specifications of the inner layer fabric warp yarn and the inner layer fabric weft yarn are the same as those in Example 1;

[0104] The weaving process is as follows: same as in Example 1;

[0105] The warp yarn of the surface fabric and the warp yarn of the inner fabric are arranged in a ratio of 1:1, and the weft yarn of the surface fabric and the weft yarn of the inner fabric are arranged in a ratio of 1:1; the texture of the surface fabric and the inner fabric is 1 / 1 plain weave;

[0106] The dyeing and finishing process is as follows: the same as in Example 1; the worsted fabric obtained by the above method is a double-layer worsted fabric;

[0107] Specifications of the worsted fabric: warp density 700 threads / 10cm, weft density 560 threads / 10cm;

[0108] The tested thermal insulation rate of the fabric is 14.35%, which is lower than the requirement of the textile industry standard FZ / T73022-2019 that the thermal insulation rate of knitted thermal underwear should be ≥ 30%.

[0109] Although the present invention has been described in detail by reference to the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person of ordinary skill in the art may easily think of changes or substitutions within the technical scope disclosed by the present invention, and these shall be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A three-layer windproof, warm and antistatic worsted fabric, characterized in that: Including surface fabric, middle fabric and inner fabric; The warp yarns of the surface fabric and the warp yarns of the inner fabric alternately sink and float during the weaving process and are interlaced with the weft yarns, so that the surface fabric and the inner fabric alternately sink and float, thereby realizing the layer change of the surface and inner fabrics, thereby forming an intermediate space through the layer change; The middle layer fabric is distributed in the hollow space formed by the surface layer fabric and the inner layer fabric; The surface fabric, the middle fabric and the inner fabric are woven into a single piece; The average floating length of the surface fabric is similar to the average floating length of the inner fabric; The surface fabric and the lining fabric are both 1 / 1 plain weave or 2 / 2 twill weave; The fabrics used for the surface fabric and the lining fabric must match the fabrics used for the selvedges; The arrangement ratio of the warp yarn of the surface fabric and the warp yarn of the inner fabric is 1:1, and the arrangement ratio of the weft yarn of the surface fabric, the weft yarn of the middle fabric and the weft yarn of the inner fabric is 1:1:1; When the surface fabric and the inner fabric are 1 / 1 plain weave, the selvedge weave is 4 / 4; when the surface fabric and the inner fabric are 2 / 2 twill weave, the selvedge weave is 6 / 6; The warp yarn and weft yarn used for weaving the surface fabric and the inner fabric are of the same composition, which are high-count yarns blended with 0.5% conductive fiber, 9.5% mulberry silk and 90% wool; the yarn count is 2 / 98Nm -2 / 78Nm, the twist direction is Z / S, the single yarn twist coefficient is 80-100, and the yarn twist coefficient is 140-180; The middle fabric is fixed in the middle of the fabric by interweaving with the selvedge. The selvedge warp yarn needs to be interwoven with the surface fabric weft yarn, the inner fabric weft yarn and the middle fabric yarn. The selvedge is tighter than the surface fabric and the inner fabric. The yarn of the middle layer fabric is weak twist parallel yarn, with a yarn count of 3 / 30Nm-3 / 18Nm, a composition of 78%-87% wool, 13%-22% 20D silkworm filament, a twist direction of Z / S / Z, a single yarn twist coefficient of 80-100, a double yarn twist coefficient of 100-150, and a finished yarn twist coefficient of 100-160.

2. A method for preparing the three-layer windproof, warm and antistatic worsted fabric according to claim 1, characterized in that: It includes dyeing process, spinning process, weaving process and dyeing and finishing process; The dyeing process is as follows: dyeing in a dye vat, drying, and mixing; The spinning process is: wool top, one recombing needle, two recombing needles, three recombing needles, combing machine, one combing needle, two combing needles, one front spinning needle, two front spinning needles, three front spinning needles, four front spinning needles, roving, spun yarn, winding, doubling, double twisting, and steaming yarn; The weaving process is: warping, drawing in, reeding, weaving, blank inspection, and raw repair; The dyeing and finishing procedures are: singeing, flat washing and boiling, double-box drying, intermediate inspection, repair, continuous steaming, open steaming, pre-shrinking, and finished products.

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