Three-dimensional wrapping gradient yarn and preparation method and fabric thereof

Abstract

The invention belongs to the technical field of textile, and discloses a three-dimensional wrapping gradient yarn and a preparation method and fabric thereof. The three-dimensional wrapping gradient yarn comprises core yarn and fixed yarn, the core yarn and the fixed yarn are different in color, and the fixed yarn wraps the surface of the core yarn. The fixed yarn comprises a first group of yarn sections and a second group of yarn sections, the wrapping density of the first group of yarn sections is gradually increased or decreased in a stepped manner, the first group of yarn sections comprises at least three first yarn splitting sections with different wrapping densities, and the second group of yarn sections comprises a plurality of second yarn splitting sections; a second yarn splitting section is arranged between two adjacent first yarn splitting sections, and the wrapping density of the second yarn splitting section is not within the wrapping density range of the two adjacent first yarn splitting sections; or a second yarn splitting section is arranged in the single first yarn splitting section, and the wrapping density of the second yarn splitting section is different from that of the single first yarn splitting section. The three-dimensional wrapping gradually-changing yarn has the color gradually-changing effect on the whole, and meanwhile uneven color doping exists in a local area, so that the three-dimensional wrapping gradually-changing yarn has the layering sense and the three-dimensional sense.

Description

Technical Field

[0001] The invention belongs to the field of textile technology, and in particular relates to a three-dimensional wrapped gradient yarn and a preparation method and fabric thereof. Background Art

[0002] With the development of society and the continuous improvement of people's living standards, people are increasingly concerned about fashion and unique styles in clothing textiles, in addition to comfort. For example, they are pursuing color changes from light to dark or dark to light. To meet these consumer demands, the continuous development of new yarns and fabrics has become a key task for the textile industry.

[0003] Currently, the gradient design of yarn color is mainly achieved through the circulation of different color yarns with light and dark gradients and light and dark gradients. This is just a uniform color cycle gradient and has the problem of poor three-dimensional effect. Summary of the Invention

[0004] The present invention aims to address at least one of the technical problems existing in the aforementioned prior art. To this end, the present invention provides a three-dimensional wrapped gradient yarn, a preparation method, and a fabric. The three-dimensional wrapped gradient yarn not only exhibits an overall color gradient effect but also exhibits uneven color mixing in localized areas, thereby enhancing the sense of layering and three-dimensionality.

[0005] The first aspect of the present invention provides a three-dimensional wrapped gradient yarn, comprising a core yarn and a solid yarn, the core yarn and the solid yarn having different colors, and the solid yarn is wrapped around the surface of the core yarn; the solid yarn comprises a first group of yarn segments and a second group of yarn segments, the first group of yarn segments adopts a step-by-step increasing or decreasing wrapping density, the first group of yarn segments comprises at least three first yarn segments with different wrapping densities, and the second group of yarn segments comprises a plurality of second yarn segments; a second yarn segment is provided between two adjacent first yarn segments, and the wrapping density of the second yarn segment is not within the range of the wrapping density of the two adjacent first yarn segments; or, a second yarn segment is provided in a single first yarn segment, and the second yarn segment has a wrapping density different from that of the single first yarn segment.

[0006] Specifically, a second yarn segment is provided between two adjacent first yarn segments, and the wrapping density of the second yarn segment is not within the wrapping density range of the two adjacent first yarn segments. For example, a first group of yarn segments is divided into three first yarn segments A, B, and C with different wrapping densities, wherein the wrapping density of first yarn segment A is 300 turns / m, the wrapping density of first yarn segment B is 900 turns / m, and the wrapping density of first yarn segment C is 1200 turns / m. The lengths of first yarn segments A, B, and C are 30m, 40m, and 80m, respectively. A second yarn segment M is provided between first yarn segments A and B. The wrapping density of second yarn segment M can be 100 turns / m, 200 turns / m, 1000 turns / m, 1100 turns / m, and so on. That is, the wrapping density of second yarn segment M is not within the wrapping density range of the two adjacent first yarn segments (300 turns / m to 900 turns / m).

[0007] The second group of yarn segments may further include a second yarn segment N, which is located between the first yarn segments B and C. Similarly, the wrapping density of the second yarn segment N is also not within the range of 900 turns / m to 1200 turns / m.

[0008] In some embodiments of the present invention, the first group of yarn segments includes a first yarn segment A, a first yarn segment B and a first yarn segment C, and the second group of yarn segments includes a second yarn segment M and a second yarn segment N. The second yarn segment M is provided between the first yarn segment A and the first yarn segment B, and the second yarn segment N is provided between the first yarn segment B and the first yarn segment C; the wrapping density of the second yarn segment M is smaller than the relatively smaller wrapping density of the first yarn segment A and the first yarn segment B, and the wrapping density of the second yarn segment N is smaller than the relatively smaller wrapping density of the first yarn segment B and the first yarn segment C.

[0009] In some embodiments of the present invention, the first group of yarn segments includes a first yarn segment A, a first yarn segment B and a first yarn segment C, and the second group of yarn segments includes a second yarn segment M and a second yarn segment N. The second yarn segment M is provided between the first yarn segment A and the first yarn segment B, and the second yarn segment N is provided between the first yarn segment B and the first yarn segment C; the wrapping density of the second yarn segment M is greater than the relatively larger wrapping density of the first yarn segment A and the first yarn segment B, and the wrapping density of the second yarn segment N is greater than the relatively larger wrapping density of the first yarn segment B and the first yarn segment C.

[0010] For example, if the wrapping density of the first yarn segment A is 300 turns / m, the wrapping density of the first yarn segment B is 900 turns / m, and the wrapping density of the first yarn segment C is 1200 turns / m, then the wrapping density of the second yarn segment M is less than 300 turns / m, and the wrapping density of the second yarn segment N is less than 900 turns / m; alternatively, the wrapping density of the second yarn segment M is greater than 900 turns / m, and the wrapping density of the second yarn segment N is greater than 1200 turns / m. This gives the yarn a more continuous and three-dimensional feel. If the wrapping density of the second yarn segment M is less than 300 turns / m (for example, 100 turns / m), and the wrapping density of the second yarn segment N is greater than 1200 turns / m (for example, 1500 turns / m), then the five yarn segments are 300 turns / m, 100 turns / m, 900 turns / m, 1500 turns / m, and 1200 turns / m. The yarn segment with 100 turns / m tends to show the color of the core yarn, while the yarn segment with 1500 turns / m strengthens the display of the color of the solid yarn, and the overall span will be larger.

[0011] In some embodiments of the present invention, when a second yarn segment is provided between two adjacent first yarn segments, the wrapping density of the second yarn segment is the same as the wrapping density of the previous or next first yarn segment between the two adjacent first yarn segments.

[0012] For example, the first group of yarn segments includes five first yarn segments with wrapping densities of 300, 600, 800, 950, and 1100 turns / m, respectively. The second group of yarn segments may include one to four second yarn segments. If there are four second yarn segments, then a second yarn segment is inserted between every two adjacent first yarn segments. That is, the second yarn segment M is located between two adjacent first yarn segments (with wrapping densities of 300 and 600 turns / m), and the wrapping density of the second yarn segment M is 800 turns / m. The second yarn segment N is located between two adjacent first yarn segments (with wrapping densities of 600 and 800 turns / m), and the wrapping density of the second yarn segment N is 950 turns / m, and so on. If there are 1-3 second yarn segments, a second yarn segment can be designed between any two adjacent first yarn segments. For example, a second yarn segment can be added between the two first yarn segments of 800 turns / m to 950 turns / m, then the second yarn segment can be 600 turns / m or 1100 turns / m.

[0013] In some embodiments of the present invention, when a second yarn segment is provided between two adjacent first yarn segments, the length of the second yarn segment is 10% to 25% of the length of the shorter first yarn segment of the two adjacent first yarn segments.

[0014] For example, the first group of yarn segments includes five first yarn segments (A, B, C, D, and E), with wrapping densities of 300, 600, 800, 950, and 1100 turns / m, respectively, and lengths of 30m, 50m, 40m, 80m, and 20m, respectively. The second group of yarn segments includes two second yarn segments, M and N. Second yarn segment M is located between first yarn segments B and C, with lengths of 50m and 40m, respectively. If the smaller of 40m is taken, the length of second yarn segment M is 4 to 10m. Second yarn segment N is located between first yarn segments D and E, with lengths of 80m and 20m, respectively. If the smaller of 20m is taken, the length of second yarn segment N is 2 to 5m. The advantage of this design is that the second group of yarn segments, as interspersed yarn segments, mainly serves to enhance the three-dimensional effect. However, if the length is too long, severe delamination will occur.

[0015] In some embodiments of the present invention, when a second yarn segment is provided within a single first yarn segment, the wrapping density of the second yarn segment is the same as the wrapping density of the previous or next first yarn segment of the single first yarn segment.

[0016] For example, the first group of yarn segments includes 5 first yarn segments (A, B, C, D, E), and the winding densities are 300 turns / m, 600 turns / m, 800 turns / m, 950 turns / m, and 1100 turns / m, respectively. A second yarn segment is added to the first yarn segment D (with a winding density of 950 turns / m). The winding density of the second yarn segment is different from that of the first yarn segment D, that is, 950 turns / m is not used. It is preferred to use the winding density of the previous or next first yarn segment adjacent to the first yarn segment D, that is, 800 turns / m or 1100 turns / m.

[0017] In some embodiments of the present invention, when a second yarn splitting segment is provided in a single first yarn splitting segment, the second yarn splitting segment is located in a range from 1 / 3 to 2 / 3 of the length of the single first yarn splitting segment.

[0018] Specifically, each first segment in the first set of yarn segments has a specific length, while the second segment can be inserted at any length within the first segment, preferably between 1 / 3 and 2 / 3 of the length of the first segment. For example, if a first segment is 30 meters long, the second segment can be added between 10 and 20 meters. After the first segment has produced 10 meters, the second segment of length L can be added, and the remaining 20 meters of the first segment can be produced.

[0019] In some embodiments of the present invention, when a second yarn segment is provided within a single first yarn segment, the length of the second yarn segment is 20% to 50% of the smaller of the interval between 1 / 3 and 2 / 3 of the length of the first yarn segment. For example, if a first yarn segment is 30m long, a second yarn segment can be added within the interval between 10m and 20m. The length of the second yarn segment is 20% to 50% of the smaller of 10m between 10m and 20m, i.e., the length of the second yarn segment is 2m to 5m. The main function of the second set of yarn segments as interlaced yarn segments is to enhance the three-dimensional effect. However, if the length is too long, severe delamination will occur.

[0020] The second aspect of the present invention provides a method for preparing the three-dimensional wrapped gradient yarn according to the first aspect of the present invention, comprising the following steps:

[0021] The core yarn and the solid yarn are fed into the hollow spindle respectively. The hollow spindle rotates, and the solid yarn is wrapped around the surface of the core yarn to form a whole and output by the output roller. The rotation speed of the hollow spindle is fixed. The wrapping density of the solid yarn is changed by changing the output speed of the output roller to obtain the three-dimensional wrapped gradient yarn; the feeding speed of the core yarn is 1.005-1.15 times the output speed of the output roller.

[0022] Specifically, taking a fancy twisting machine as an example, the core yarn is fed through a hollow spindle, and the solid yarn is unwound from a bobbin outside the hollow spindle and fed from the top of the hollow spindle through the hollow spindle. The hollow spindle rotates, and the solid yarn is wrapped around the surface of the core yarn to form a whole and output by the output roller. The rotation speed of the hollow spindle is fixed, and the wrapping density of the solid yarn is changed by changing the output speed of the output roller to obtain the three-dimensional wrapped gradient yarn. The feeding speed of the core yarn is controlled to be 1.005-1.15 times the output speed of the output roller. Because the faster feeding speed of the core yarn will cause random fluctuations in the contact position between the core yarn and the solid yarn, the wrapping density of the solid yarn will vary, which is more conducive to achieving a three-dimensional effect of uneven color doping.

[0023] The third aspect of the present invention provides a fabric comprising the three-dimensional wrapped gradient yarn described in the first aspect of the present invention.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The three-dimensional wrapped gradient yarn provided by the present invention, by interspersing a second group of yarn segments with a specific wrapping density into the first group of yarn segments and controlling the feeding speed of the core yarn, makes the three-dimensional wrapped gradient yarn not only have a color gradient effect as a whole, but also have uneven color doping in local areas, thus having a more layered and three-dimensional effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a physical picture of the fabric prepared in Example 1 of the present invention;

[0027] Figure 2 This is a physical picture of the fabric prepared for comparison 1. DETAILED DESCRIPTION

[0028] In order to make the technical solution of the present invention more clearly understood by those skilled in the art, the following examples are given for illustration. It should be noted that the following examples do not limit the scope of protection claimed by the present invention.

[0029] Unless otherwise specified, the yarns or devices used in the present invention can be obtained from conventional commercial channels or by existing known methods.

[0030] Example 1

[0031] A three-dimensional wrapped gradient yarn comprises a white core yarn and a red solid yarn, wherein the solid yarn is wrapped around the surface of the core yarn; the solid yarn comprises a first group of yarn segments and a second group of yarn segments, the first group of yarn segments comprises three first yarn segments A, B, and C with different wrapping densities, wherein the first yarn segment A has a wrapping density of 500 turns / m and a length of 20m, the first yarn segment B has a wrapping density of 700 turns / m and a length of 20m, and the first yarn segment C has a wrapping density of 900 turns / m and a length of 20m; the second group of yarn segments comprises two second yarn segments M and N with different wrapping densities, wherein the second yarn segment M has a wrapping density of 800 turns / m and a length of 3m, and is located between the first yarn segments A and B, and the second yarn segment N has a wrapping density of 500 turns / m and a length of 3m, and is located between the first yarn segments B and C.

[0032] The preparation method of the three-dimensional wrapped gradient yarn comprises the following steps:

[0033] A fancy twisting machine is used to feed the core yarn through the hollow spindle, and the solid yarn is unwound from the yarn tube outside the hollow spindle and fed from the top of the hollow spindle through the hollow spindle. The hollow spindle rotates, and the solid yarn is wrapped around the surface of the core yarn to form a whole and output by the output roller. The rotation speed of the hollow spindle is fixed. The wrapping density of the solid yarn is changed by changing the output speed of the output roller, and a three-dimensional wrapped gradient yarn is output; the feeding speed of the core yarn is set to 1.05 times the output speed of the output roller, so that random fluctuations of the core yarn can be formed during the wrapping process, resulting in a large difference in the wrapping density in local areas, thereby improving the three-dimensional effect.

[0034] A fabric is made from the above three-dimensional wrapped gradient yarn. The actual picture of the fabric is as follows Figure 1 As shown, Figure 1Among them, the color at 1 is lighter, and the wrapping density is 500 turns / m; the color at 2 is lighter, and the wrapping density is 900 turns / m; in the entire area where 3 is located (not limited to the circled area), the red and white are not uniform, but some places have more red and some places have more white. This is due to random fluctuations in the wrapping density, that is, there is uneven color mixing, which makes it more layered and three-dimensional.

[0035] Comparative Example 1

[0036] A wrapped gradient yarn comprises a first white yarn and a second red yarn, wherein the second yarn is spirally wound around the outer layer of the first yarn, and the wrapped gradient yarn circulates in a gradient color along the axial direction;

[0037] In a color gradient cycle, there are four winding yarn segments (A, B, C, and D) in sequence, where the winding density of the winding yarn segment A is 300 turns / m, the winding density of the winding yarn segment B is 600 turns / m, the winding density of the winding yarn segment C is 800 turns / m, and the winding density of the winding yarn segment D is 1000 turns / m. The length of the winding yarn segment A is 10m, the length of the winding yarn segment B is 8m, the length of the winding yarn segment C is 10m, and the length of the winding yarn segment D is 15m.

[0038] A fabric is made from the above-mentioned wrapped gradient yarn. Figure 2 As shown, the gradient from dark to light is uniform, without Figure 1 The uneven color doping in the film means there is no little bit of color doping effect. Figure 2 The three-dimensional sense is poor.

[0039] Example 2

[0040] A three-dimensional wrapped gradient yarn, comprising a white core yarn and a red solid yarn, wherein the solid yarn is wrapped around the surface of the core yarn; the solid yarn comprises a first group of yarn segments and a second group of yarn segments, wherein the first group of yarn segments comprises three first yarn segments A, B, and C with different wrapping densities, the wrapping densities being 300, 600, and 1400 turns / m, respectively, and the lengths being 50m, 50m, and 50m, respectively; the second group of yarn segments comprises two second yarn segments with different wrapping densities, wherein there are 1 to 8 second yarn segments with a wrapping density of 800 turns / m, and 9 to 14 second yarn segments with a wrapping density of 1400 turns / m; the eight second yarn segments with a wrapping density of 800 turns / m are distributed within the first yarn segment A The first yarn segment A is followed by a second yarn segment with a wrapping density of 800 turns / m at lengths of 5, 10, 14, 21, 26, 30, 35, 40, and 46 m, and the lengths of these eight second yarn segments are 1, 1, 0.6, 0.8, 1, 0.6, 0.8, and 1 m, respectively; the six second yarn segments with a wrapping density of 1400 turns / m are distributed in the first yarn segment B. The first yarn segment B is followed by a second yarn segment with a wrapping density of 1400 turns / m at lengths of 5, 10, 14, 18, 26, 35, and 45 m, respectively. The lengths of these six second yarn segments are 1, 0.6, 0.6, 0.6, 1.5, and 1 m, respectively.

[0041] The preparation method of the three-dimensional wrapped gradient yarn comprises the following steps:

[0042] A fancy twisting machine is used to feed the core yarn through the hollow spindle. The solid yarn is unwound from the yarn tube outside the hollow spindle and fed from the top of the hollow spindle through the hollow spindle. The hollow spindle rotates, and the solid yarn is wrapped around the surface of the core yarn to form a whole and output by the output roller. The rotation speed of the hollow spindle is fixed. The wrapping density of the solid yarn is changed by changing the output speed of the output roller, and a three-dimensional wrapped gradient yarn is output; the feeding speed of the core yarn is set to 1.1 times the output speed of the output roller.

[0043] Example 3

[0044] A three-dimensional wrapped gradient yarn comprises a white core yarn and a red solid yarn, wherein the solid yarn is wrapped around the surface of the core yarn; the solid yarn comprises a first group of yarn segments and a second group of yarn segments, the first group of yarn segments comprises three first yarn segments A, B, and C with different wrapping densities, wherein the first yarn segment A has a wrapping density of 500 turns / m and a length of 20m, the first yarn segment B has a wrapping density of 700 turns / m and a length of 20m, and the first yarn segment C has a wrapping density of 900 turns / m and a length of 20m; the second group of yarn segments comprises two second yarn segments M and N with different wrapping densities, wherein the second yarn segment M has a wrapping density of 800 turns / m and a length of 3m, and is located between the first yarn segments A and B, and the second yarn segment N has a wrapping density of 1000 turns / m and a length of 3m, and is located between the first yarn segments B and C.

[0045] The preparation method of the three-dimensional wrapped gradient yarn in this example is the same as that in Example 1.

[0046] Example 4

[0047] A three-dimensional wrapped gradient yarn comprises a white core yarn and a red solid yarn, wherein the solid yarn is wrapped around the surface of the core yarn; the solid yarn comprises a first group of yarn segments and a second group of yarn segments, the first group of yarn segments comprises five first sub-yarn segments A, B, C, D, and E with different wrapping densities, the wrapping densities are 300 loops / m, 600 loops / m, 800 loops / m, 950 loops / m, and 1100 loops / m, respectively, and the lengths are 30m, 50m, 40m, 80m, and 20m, respectively, and the second group of yarn segments comprises five first sub-yarn segments A, B, C, D, and E with different wrapping densities, respectively. The two groups of yarn segments include three second yarn segments M, N, and X. The second yarn segment M is located between the first yarn segments A and B, and the wrapping density of the second yarn segment M is 800 turns / m and the length is 3m. The second yarn segment N is located between the first yarn segments B and C, and the wrapping density of the second yarn segment N is 950 turns / m and the length is 4m. The second yarn segment X is located between the first yarn segments C and D, and the wrapping density of the second yarn segment X is 1100 turns / m and the length is 4m.

[0048] The preparation method of the three-dimensional wrapped gradient yarn in this example is the same as that in Example 1.

[0049] Example 5

[0050] A three-dimensional wrapped gradient yarn includes a white core yarn and a red solid yarn, wherein the solid yarn is wrapped around the surface of the core yarn; the solid yarn includes a first group of yarn segments and a second group of yarn segments, wherein the first group of yarn segments includes three first yarn segments A, B, and C with different wrapping densities, the wrapping densities being 500, 700, and 900 turns / m, respectively, and the lengths being 30m, 30m, and 30m, respectively; the second group of yarn segments includes a second yarn segment distributed within the first yarn segment B, wherein the first yarn segment B is followed by the second yarn segment at a length of 10m, the second yarn segment having a wrapping density of 500 turns / m and a length of 3m.

[0051] The preparation method of the three-dimensional wrapped gradient yarn in this example is the same as that in Example 1.

[0052] The fabrics prepared by the three-dimensional wrapped gradient yarns of the above Examples 2-5 all have a color gradient effect, and at the same time, there is uneven color mixing in local areas, which has a sense of layering and three-dimensionality.

[0053] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A three-dimensional wrapped gradient yarn, characterized in that: It includes a core yarn and a solid yarn, the core yarn and the solid yarn are different in color, and the solid yarn is wrapped around the surface of the core yarn; the solid yarn includes a first group of yarn segments and a second group of yarn segments, the first group of yarn segments adopts a step-by-step increasing or decreasing wrapping density, the first group of yarn segments includes at least three first yarn segments with different wrapping densities, and the second group of yarn segments includes several second yarn segments; a second yarn segment is provided between two adjacent first yarn segments, and the wrapping density of the second yarn segment is not within the range of the wrapping density of the two adjacent first yarn segments; or, a second yarn segment is provided in a single first yarn segment, and the second yarn segment has a wrapping density different from that of the single first yarn segment.

2. The three-dimensional wrapped gradient yarn according to claim 1, characterized in that: The first group of yarn segments includes a first yarn segment A, a first yarn segment B and a first yarn segment C, and the second group of yarn segments includes a second yarn segment M and a second yarn segment N. The second yarn segment M is provided between the first yarn segment A and the first yarn segment B, and the second yarn segment N is provided between the first yarn segment B and the first yarn segment C; the wrapping density of the second yarn segment M is smaller than the relatively small wrapping density of the first yarn segment A and the first yarn segment B, and the wrapping density of the second yarn segment N is smaller than the relatively small wrapping density of the first yarn segment B and the first yarn segment C.

3. The three-dimensional wrapped gradient yarn according to claim 1, characterized in that: The first group of yarn segments includes a first yarn segment A, a first yarn segment B and a first yarn segment C, and the second group of yarn segments includes a second yarn segment M and a second yarn segment N. The second yarn segment M is provided between the first yarn segment A and the first yarn segment B, and the second yarn segment N is provided between the first yarn segment B and the first yarn segment C; the wrapping density of the second yarn segment M is greater than the relatively larger wrapping density of the first yarn segment A and the first yarn segment B, and the wrapping density of the second yarn segment N is greater than the relatively larger wrapping density of the first yarn segment B and the first yarn segment C.

4. The three-dimensional wrapped gradient yarn according to claim 1, characterized in that: When a second yarn segment is provided between two adjacent first yarn segments, the wrapping density of the second yarn segment is the same as the wrapping density of the previous or next first yarn segment between the two adjacent first yarn segments.

5. The three-dimensional wrapped gradient yarn according to claim 4, characterized in that: The length of the second yarn segment is 10% to 25% of the length of the shorter first yarn segment of the two adjacent first yarn segments.

6. The three-dimensional wrapped gradient yarn according to claim 1, characterized in that: When a second yarn segment is provided within a single first yarn segment, the wrapping density of the second yarn segment is the same as the wrapping density of the previous or next first yarn segment of the single first yarn segment.

7. The three-dimensional wrapped gradient yarn according to claim 6, characterized in that: The second yarn division section is located in a range from 1 / 3 to 2 / 3 of the length of the single first yarn division section.

8. The three-dimensional wrapped gradient yarn according to claim 7, characterized in that: The length of the second yarn segment is 20% to 50% of the smaller value within the range of 1 / 3 to 2 / 3 of the length of the single first yarn segment.

9. The method for preparing the three-dimensional wrapped gradient yarn according to any one of claims 1 to 8, characterized in that: The following steps are involved: The core yarn and the solid yarn are fed into the hollow spindle respectively. The hollow spindle rotates, and the solid yarn is wrapped around the surface of the core yarn to form a whole and output by the output roller. The rotation speed of the hollow spindle is fixed. The wrapping density of the solid yarn is changed by changing the output speed of the output roller to obtain the three-dimensional wrapped gradient yarn; the feeding speed of the core yarn is 1.005-1.15 times the output speed of the output roller.

10. A fabric, characterized in that: The invention comprises the three-dimensional wrapped gradient yarn according to any one of claims 1 to 8.

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