Flannelette manufacturing process, flannelette and textile product

Abstract

The invention relates to the technical field of textile, in particular to a flannelette manufacturing process, flannelette and a textile product, the flannelette manufacturing process comprises the following steps: obtaining weaving yarns, the weaving yarns comprise at least one kind of yarns, one kind of yarns is main body yarns, the monofilament number range of the main body yarns is 240F-300F, and the monofilament number range of the main body yarns is 240F-300F; the ratio range of the number of the monofilaments to the fineness is 1.5-2; weaving is conducted, weaving yarn is fed into a warp knitting machine, warp knitting grey cloth with meshes is manufactured by adopting warp-level variation weave weaving, the maximum size of the meshes ranges from 0.1 mm to 0.3 mm, and the distance between every two adjacent meshes ranges from 0.8 mm to 2.5 mm; raising: raising at least one side of the warp-knitted gray fabric to obtain the flannelette. The flannelette prepared by the flannelette manufacturing process provided by the invention can avoid the problem that the traditional high-gram-weight winter flannelette fabric is easy to sweat and stick to the skin, and can keep the body surface dry and comfortable even when people sit indoors for a long time or do light exercises outdoors.

Description

Technical Field

[0001] This invention relates to the field of textile technology, and particularly to a process for manufacturing fleece, fleece, and textile products. Background Technology

[0002] Fleece fabrics are a core raw material in the textile and home textile industries, with good warmth retention being a primary requirement. However, the industry currently faces significant technological bottlenecks, namely, the warmth retention of traditional fleece fabrics relies entirely on high weight (200g / m²). 2 The above raw materials and dense weaving process achieve heat preservation by locking in a large amount of still air inside the fabric. This inherent logic leads to the fabric being inevitably thick and having poor breathability.

[0003] As consumers demand a higher level of comfort and warmth, breathability and sweat-free clothing have become the core market demand for fleece fabrics in autumn and winter. In particular, the problems of traditional heavy fleece fabrics being stuffy and sticky against the skin are becoming increasingly prominent, especially in scenarios with large temperature differences between indoors and outdoors, light outdoor travel, and daily commutes. Summary of the Invention To address the problems of traditional thick fleece fabrics being stuffy and sticky on the skin, this invention provides a fleece fabric manufacturing process, fleece fabric, and textile products.

[0005] The solution to the technical problem of this invention is to provide a process for manufacturing fleece fabric, including the following steps: Obtain a braided yarn, the braided yarn comprising at least one yarn, wherein one yarn is a main yarn, the number of monofilaments of the main yarn is in the range of 240F-300F, and the ratio of the number of monofilaments to the fineness is in the range of 1.5-2; Weaving involves feeding the weaving yarn into a warp knitting machine and weaving it using a warp-plain variation structure to produce a warp-knitted fabric with mesh openings. The maximum size of the mesh openings is 0.1-0.3 mm, and the spacing between two adjacent mesh openings is 0.8-2.5 mm. Pile fabric is obtained by pile-forming at least one side of the warp-knitted fabric.

[0006] Preferably, the braided yarn further includes at least one auxiliary yarn, which includes at least one of polyester-coated spandex core-spun yarn and polyester elastic yarn; the main yarn includes 150D / 288F polyester yarn or 150D / 240F polyester yarn.

[0007] Preferably, obtaining the braided yarn specifically includes the following steps: The main yarn and the auxiliary yarn are blended at a mass ratio of (95-98):(2-5); After blending, the yarn is placed into a warping machine for warping treatment at a speed of 400-600 m / min; After warping, the yarn undergoes light sizing and then dewatering until the moisture content of the knitting yarn is ≤8%.

[0008] Preferably, the weaving process parameters of the warp knitting machine are set as follows: weaving speed 700-900 r / min, weft density 250-350 wefts / 10cm, and machine tension 170-190 N.

[0009] Preferably, the weight of the warp-knitted fabric is 80-90 g / m². 2 The weight of the fleece fabric is 100-120 g / m². 2 .

[0010] Preferably, the napping process specifically includes the following steps: The fabric blank is fed into a napping machine and napped using a needle cloth roller. The napping speed is 10-20 m / min, the needle cloth roller speed is 700-900 r / min, and the napping depth is controlled to be 0.5-0.8 mm. The napping process involves feeding the napped fabric into a napping machine for directional napping. The direction of the napping needles is perpendicular to the warp direction of the fabric, and the nap height after napping is 2.2-5mm. The combed fabric is fed into a spinning machine and spun for 20-30 minutes at a temperature of 35-45℃ and a speed of 200-400r / min.

[0011] Preferably, the process of combing and spinning includes shearing, which comprises the following steps: The combed fabric is fed into a shearing machine, where a circular blade is used to shear the pile at a speed of 5-15 m / min and a blade spacing of 1.0-1.2 mm. The pile height after shearing is 2-4.8 mm. The sheared fabric is then fed into a reeling machine for further processing.

[0012] Preferably, the fleece manufacturing process further includes the following steps: The fabric is then subjected to post-treatment, which includes one or more of the following: dyeing treatment, antistatic treatment, and softening treatment.

[0013] To solve the above-mentioned technical problems, the present invention provides another technical solution as follows: a fleece fabric, wherein the fleece fabric is prepared by the above-mentioned fleece fabric preparation process, the fleece fabric comprising a warp-knitted greige fabric formed by weaving and a pile surface formed by napping on at least one side of the warp-knitted greige fabric, the warp-knitted greige fabric having a plurality of mesh openings, the maximum size of the mesh openings being 0.1-0.3 mm, the spacing between two adjacent mesh openings being 0.8-2.5 mm, and the area in the pile surface corresponding to the mesh openings forming air-permeable channels, the fleece fabric having a basis weight of 100-120 g / m². 2 .

[0014] To solve the above-mentioned technical problems, the present invention provides another technical solution as follows: A textile product, wherein the textile product includes the above-mentioned fleece fabric.

[0015] Compared with the prior art, the velvet manufacturing process, velvet, and textile products provided by the present invention have the following beneficial effects: 1. The fabric manufacturing process of the present invention includes the following steps: obtaining a braiding yarn, the braiding yarn including at least one yarn, wherein one yarn is a main yarn, the number of monofilaments of the main yarn is in the range of 240F-300F, and the ratio of the number of monofilaments to the fineness is in the range of 1.5-2; braiding, feeding the braiding yarn into a warp knitting machine, and weaving it using a warp-plain variation structure to obtain a warp-knitted fabric with mesh openings, the maximum size of the mesh openings being 0.1-0.3mm, and the spacing between two adjacent mesh openings being 0.8-2.5mm; and raising the pile, raising the pile on at least one side of the warp-knitted fabric to obtain the fabric.

[0016] This invention, by selecting main yarns with specific parameters and combining them with weaving techniques to form a mesh, enables the resulting fleece fabric to possess lightweight and warm properties. The mesh design also achieves a "warm yet breathable" wearing experience, avoiding the problems of traditional high-grammage winter fleece fabrics being prone to sweating and sticking to the skin. Even when sitting indoors for long periods or engaging in light outdoor exercise, the skin can remain dry and comfortable, completely solving the core pain point of traditional fleece fabrics that are "warm but inevitably sweaty." It also avoids the health problems caused by the drop in perceived temperature due to dampness and coldness from traditional fleece fabrics, which can lead to colds and other health issues.

[0017] 2. In the fleece manufacturing process of the present invention, the weaving yarn also includes at least one auxiliary yarn, which includes at least one of polyester-coated spandex core-spun yarn and polyester elastic yarn; the main yarn includes 150D / 288F polyester yarn or 150D / 240F polyester yarn. The main yarn provides the core functions of warmth retention, lightweight, and fleece formation; the auxiliary yarn provides auxiliary properties without affecting the function of the main yarn, such as improving the elasticity of the fabric base or improving washability, thereby improving the performance of the fleece.

[0018] 3. The specific steps for obtaining the braided yarn in the fabric manufacturing process of this invention include: blending the main yarn and auxiliary yarn at a mass ratio of (95-98):(2-5); placing the blended yarn into a warping machine for warping at a speed of 400-600 m / min; performing a light sizing treatment after warping, and then dehydrating until the moisture content of the braided yarn is ≤8%. The yarn arrangement will be more uniform after warping, and the light sizing treatment is beneficial to improving the tensile strength and weaving performance of the yarn, and reducing yarn breakage during the weaving process.

[0019] 4. In the fabric manufacturing process of this invention, the weaving process parameters of the warp knitting machine are set as follows: weaving speed 700-900 r / min, weft density 250-350 weft ends / 10cm, and on-machine tension 170-190 N; and / or the basis weight of the warp-knitted fabric is 80-90 g / m². 2 This helps reduce the weight of the fleece fabric.

[0020] 5. The napping process in the fabric manufacturing process of this invention specifically includes the following steps: napping, where the mesh fabric blank is fed into a napping machine, and napping is performed using a needle-cloth roller at a napping speed of 10-20 m / min and a needle-cloth roller rotation speed of 700-900 r / min, with the napping depth controlled at 0.5-0.8 mm; combing, where the napped fabric is fed into a combing machine for directional combing, with the combing needles perpendicular to the warp direction of the fabric, resulting in a nap height of 2.2-5 mm; and shaking, where the combed fabric is fed into a shaking machine and shaken for 20-30 minutes at a temperature of 35-45℃ and a rotation speed of 200-400 r / min. Through these three steps of napping, combing, and shaking, the combed fabric is directly fed into the shaking machine for further processing, simplifying the process and increasing production efficiency.

[0021] 6. The fleece manufacturing process of this invention further includes shearing between combing and reeling. Shearing includes the following steps: feeding the combed fabric into a shearing machine, using a circular blade for shearing at a speed of 5-15 m / min, with the blade distance controlled at 1.0-1.2 mm, resulting in a fleece height of 2-4.8 mm. The sheared fabric is then fed into a reeling machine for further processing. Through these four refined processes—combing, shearing, and reeling—the surface fibers of the fleece can be arranged in an orderly pattern perpendicular to the base, ensuring a uniform fleece height without unevenness, improving both appearance and warmth uniformity, and creating a three-dimensional, fluffy, and uniformly high fleece surface.

[0022] 7. The fleece manufacturing process of the present invention further includes the following steps: post-processing the fleece, which includes one or more of dyeing, antistatic treatment, and softening treatment. Dyeing can give the fleece an attractive color, and antistatic treatment can make the surface resistivity of the fleece ≥10. 11 Ω, softening treatment can enhance the softness and smoothness of the fleece.

[0023] 8. The present invention also provides a fleece fabric, which has the same beneficial effects as the fleece fabric manufacturing process described above, and will not be described in detail here.

[0024] 9. The present invention also provides a textile product that has the same beneficial effects as the above-mentioned fleece fabric, which will not be described in detail here. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a flowchart of the steps of a velvet fabric manufacturing process provided in the first embodiment of the present invention.

[0027] Figure 2 This is a flowchart of step S1 of a velvet fabric manufacturing process provided in the first embodiment of the present invention.

[0028] Figure 3 This is a flowchart of step S3 of a velvet fabric manufacturing process provided in the first embodiment of the present invention.

[0029] Figure 4 This is a cross-sectional schematic diagram of a velvet fabric provided in the second embodiment of the present invention.

[0030] Figure 5 This is a top view schematic diagram of a velvet fabric provided in the second embodiment of the present invention.

[0031] Figure 6a This is a schematic diagram of a rectangular mesh in a velvet fabric provided in the second embodiment of the present invention.

[0032] Figure 6b This is a schematic diagram of a circular mesh in a velvet fabric provided in the second embodiment of the present invention.

[0033] Figure 6c This is a schematic diagram of a diamond-shaped mesh in a velvet fabric provided in the second embodiment of the present invention.

[0034] Figure 6d This is a schematic diagram of a honeycomb mesh in a velvet fabric provided in the second embodiment of the present invention.

[0035] Explanation of reference numerals in the attached diagram: 10. Fleece; 11. Warp-knitted fabric; 12. Pile surface; 110. Mesh. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] Please see Figure 1 The first embodiment of the present invention provides a process for manufacturing fleece fabric, including the following steps: S1. Obtain braided yarn, which includes at least one type of yarn, wherein one type of yarn is the main yarn, the number of monofilaments of the main yarn is in the range of 240F-300F, and the ratio of the number of monofilaments to the fineness is in the range of 1.5-2. S2. Weaving: The weaving yarn is fed into a warp knitting machine and woven using a warp-plain variation structure to produce a warp-knitted fabric with mesh openings. The maximum size of the mesh openings is 0.1-0.3mm, and the spacing between two adjacent mesh openings is 0.8-2.5mm. S3. Pile raising: Pile fabric is obtained by raising pile on at least one side of the warp-knitted fabric.

[0038] Optionally, in some embodiments, the ratio of the number of monofilaments to the fineness can be in the range of 1.5-1.8, 1.8-2, etc.

[0039] It can be understood that the warp-plain weave variation in step S2 refers to changing the lateral shift distance of the padding yarn between adjacent rows on the basis of the warp-plain weave, so that it is no longer limited to adjacent stitch lengths, but spans two or more stitch lengths. The warp-plain weave variation forms long extension lines by padding yarns across stitch lengths, and creates unrestrained points with the help of another guide bar, which opens up the floats under the action of tension to form a longitudinally continuous mesh.

[0040] The main yarn of this invention has a single filament count ranging from 240F to 300F, and a single filament count to fineness ratio ranging from 1.5 to 2. By selecting high F (F represents the single filament count) yarns, each yarn is composed of more fine denier fibers (fine denier fibers refer to: 0.5 denier ≤ fineness / single filament count ≤ 1.0 denier). This allows for the formation of more tiny, stationary air layers between the fibers, enhancing the insulation effect. Simultaneously, the fine denier fibers also improve the fabric's softness and lightweight nature, laying the foundation for ultra-lightweight warmth. Furthermore, combining this with warp knitting ensures the fabric's base density, preventing the loss of warmth due to mesh openings. The mesh design creates micron-level interconnected breathable channels, breaking the conventional logic of "dense for warmth" and achieving a dual effect of warmth and breathability.

[0041] In other words, by selecting main yarns with specific parameters and combining them with weaving techniques to form a mesh, the present invention can produce fleece fabric with lightweight and warm properties. The mesh design also achieves a "warm but not stuffy" wearing experience, avoiding the problems of traditional high-gram weight winter fleece fabrics being prone to stuffiness and stickiness to the skin. Even when sitting indoors for a long time or exercising lightly outdoors, the skin can remain dry and comfortable, completely solving the core pain point of traditional fleece fabrics that are "warm but stuffy". It also avoids the health problems such as colds caused by the drop in body temperature due to dampness and coldness caused by traditional fleece fabrics.

[0042] Optionally, in some embodiments, the main yarn is selected as 150D / 288F polyester yarn. The F number represents the number of individual fibers in the yarn. 288F is a high F number, which means that a single yarn is composed of a large number of fine denier fibers. Fine denier fibers have a smaller diameter and more and denser gaps between fibers. These tiny gaps can lock in more still air. Therefore, the more micro-still air layers are formed between fibers, the stronger the thermal insulation performance of the fabric, and the warmth retention rate can reach more than 30%.

[0043] It can be understood that 150D / 288F means that the number of monofilaments (represented by the symbol F) is 288 and the fineness is 150 denier (represented by the symbol D), with a ratio of monofilament count to fineness of 1.92.

[0044] The formula for calculating the heat retention rate is: Heat retention rate (%) = (Q0 - Q1) / Q0 × 100%, where Q0 represents the heat loss without the fleece covering and Q1 represents the heat loss with the fleece covering.

[0045] Optionally, in some embodiments, the main yarn is selected from 150D / 240F polyester yarn.

[0046] Specifically, both 150D / 288F polyester yarn and 150D / 240F polyester yarn are 100% pure polyester fiber. The raw materials are all from chemical fibers, without the addition of any natural fibers (such as cotton, linen, wool, silk) or other types of chemical fibers.

[0047] Furthermore, the knitting yarn also includes at least one auxiliary yarn, which includes at least one of polyester-covered spandex core-spun yarn and polyester elastic yarn. In embodiments of the present invention, the main yarn provides the core functions of warmth retention, lightweight, and napped surface formation; the auxiliary yarn can provide auxiliary properties without affecting the function of the main yarn, such as improving the elasticity of the fabric base or enhancing washability.

[0048] Optionally, in some embodiments, the auxiliary yarn is a polyester-covered spandex core-spun yarn, which is made of 20D spandex plus 50D polyester core-spun yarn, with an elastic recovery rate of ≥95%, which can improve the elasticity and fit of the fabric base.

[0049] Specifically, the amount of polyester-covered spandex core-spun yarn added accounts for 20%-25% of the woven yarn. Adding a small amount does not increase the weight, but can improve the fit of the fabric and prevent the mesh from deforming.

[0050] Optionally, in some embodiments, the auxiliary yarn is made of polyester elastic yarn, which is polyester elastic fiber (polytrimethylene terephthalate, abbreviated as PTT). PTT has a slightly lower elastic recovery rate, but better washability and anti-yellowing properties, making it suitable for products such as outerwear and inner linings of rain jackets that require long-term washing.

[0051] Furthermore, such as Figure 2 As shown, step S1, obtaining the braided yarn, specifically includes the following steps: S11. Blend the main yarn and auxiliary yarn at a mass ratio of (95-98):(2-5); S12, after blending, is placed into a warping machine for warping treatment at a speed of 400-600 m / min; and S13. After warping, perform light sizing treatment, and then dehydrate until the moisture content of the braided yarn is ≤8%.

[0052] Specifically, in step S12, the warp density is 320-350 warps / 10cm, resulting in a more uniform yarn arrangement after warping. In step S13, the sizing process involves a solids content of 8%-10%, using environmentally friendly water-soluble sizing agents, which helps improve the yarn's tensile strength and weaving performance. To prevent yarn breakage during weaving, dehydration in step S13 can be achieved through methods such as natural air drying.

[0053] Furthermore, in an embodiment of the present invention, the weaving process parameters of the warp knitting machine in step S2 are set as follows: weaving speed 700-900 r / min, weft density 250-350 wefts / 10cm, and machine tension 170-190 N. The weight of the warp-knitted fabric obtained after weaving is 80-90 g / m². 2 .

[0054] Furthermore, the first embodiment of the present invention provides a fleece manufacturing process that produces fleece with a basis weight of 100-120 g / m². 2 .

[0055] Specifically, in some embodiments, the warp knitting machine in step S2 is selected as 22-needle, 100-inch. The 22-needle process achieves the best balance between warmth and lightness, and can make the fleece have a heat retention rate of ≥30%.

[0056] It is understandable that 22 needles refers to the machine's serial number, indicating that 22 needles are arranged on a 1-inch wide needle bed; 100 inches refers to the machine's working width, indicating that the effective working width of the machine's needle bed is 100 inches.

[0057] It is understandable that the use of a 22-needle warp knitting machine in this invention has two core innovative values: First, the high needle count of 22 needles ensures the density of the fabric base, avoiding the loss of warmth due to the mesh design. At the same time, the high needle count allows the yarn to be arranged more compactly and evenly, reducing the overall thickness of the fabric. Second, the mesh layout forms regular micron-level breathable channels in the fabric base. The channels have a vertical three-dimensional through-structure, which does not damage the heat-locking effect of the surface fleece, but also enables rapid exchange of air and moisture, enhancing breathability.

[0058] It can be understood that the mesh layout of this invention forms regular micron-level breathable channels on the fabric substrate. The channels have a longitudinal three-dimensional through-structure. The core of this invention is that the channels are not planar holes, but three-dimensional spatial structures with continuous through-structure in the fabric thickness direction. This is specifically reflected in three points: Through the thickness direction: The channel completely penetrates from the front of the fabric to the inside of the base and then to the back of the fabric, forming a three-dimensional path that runs through the thickness of the fabric, rather than a shallow hole on the surface.

[0059] Longitudinal directional extension: The mesh holes are arranged linearly and continuously along the warp (longitudinal) direction of the fabric, and are not random holes, but have a clear spatial direction.

[0060] Three-dimensional cross-section: The channel has three-dimensional dimensions in cross-section: height (fabric thickness), width, and length, forming a tubular / groove-like three-dimensional space, rather than a two-dimensional gap.

[0061] Optionally, the mesh shape can include one or more of the following different mesh shapes: rectangular mesh, circular mesh, diamond mesh, honeycomb mesh, etc.; among them, honeycomb mesh has a better heat retention effect, but the air permeability is slightly reduced (≥550mm / s), which is suitable for cold northern regions.

[0062] Specifically, in some embodiments, the mesh openings are arranged linearly and continuously along the warp (longitudinal) direction of the fabric. When the human body is active, sweat and hot, humid airflow mainly flow vertically (i.e., along the body's longitudinal direction). The linear arrangement of the mesh openings along the warp direction coincides with the body's primary perspiration direction, forming a continuous self-breathing channel. Furthermore, when the wearer moves, the fabric stretches longitudinally with the limbs, slightly opening the mesh openings and accelerating the longitudinal expulsion of moisture, achieving targeted moisture wicking. This arrangement utilizes the Bernoulli effect (the faster the airflow, the lower the air pressure) more effectively than a randomly arranged mesh, creating negative pressure during movement to actively draw out internal moisture.

[0063] To further clarify the technical solution of the present invention, the rectangular mesh, circular mesh, diamond mesh, and honeycomb mesh formed in the present invention will be described below in conjunction with specific warp-flat weaving processes.

[0064] Optionally, in some embodiments, when the mesh shape is a rectangular mesh, the relevant parameters are as follows: Guide bar configuration and padding yarn numbers: Two guide bars are used, namely GB1 and GB2, both of which adopt warp-flat variation weave. The padding yarn numbers are symmetrical to each other, forming a stable mesh structure.

[0065] GB1 padding yarn number: 1-0 / 1-2 / 2-3 / 2-1 / / , This structure is a warp-plank variation structure, with extension lines alternately distributed between different rows, providing a structural basis for mesh formation.

[0066] GB2 padding yarn numbers: 2-3 / 2-1 / 1-0 / 1-2 / / , which is symmetrical to GB1. Two combs form alternating extension lines between the warp rows, so that some warp rows are not connected by extension lines, thus forming mesh.

[0067] How to thread the gauze: GB1: Full threading (i.e., each guide needle is threaded with yarn) is adopted to form a dense base structure, ensuring the overall strength and warmth of the fabric.

[0068] GB2: The yarn threading method of one thread and one loop is adopted, that is, the number of consecutive threading and the number of loops are both 1, forming a periodic loop area, so that there is no extension line connection between some warp rows, and the longitudinally continuous mesh is naturally formed during the weaving process.

[0069] With the combination of the aforementioned yarn padding numbers and yarn threading methods, the formation of rectangular meshes satisfies the following key constraints: Organizational structure constraints: GB1 and GB2 have symmetrical warp-flat variation weaves. The two guide bars have no extension lines connecting them between specific warp rows. Combined with the one-through-one-open-through yarn method of GB2, the open-through area has no loop connection between the corresponding warp rows, forming a stable mesh.

[0070] Yarn padding range constraint: The yarn padding range for both GB1 and GB2 is 3 (i.e., the maximum needle pitch difference is 3). The sum of the number of consecutive warp passes and the number of free passes is 2. The yarn padding range is greater than this sum (3>2) to ensure that the loops will not fall off during weaving and that the mesh structure is stable.

[0071] Weaving parameters: Warp knitting machine type: 22-needle warp knitting machine Weaving speed: 750 r / min Weft density: 280 threads / 10cm Machine tension: 180±10N Optionally, in some embodiments, when the mesh shape is circular, the rectangular mesh is first obtained by weaving it according to the above-described method, and then a shaping process is performed to obtain the circular mesh. The shaping process parameters are as follows: Stentering equipment: Tensioner Setting temperature: 130–140℃ Lateral stretching range: 15–25% wider than the original width. Setting time: 45–60 seconds Cooling method: Natural cooling to room temperature.

[0072] It is understandable that during the heat setting process, under the action of transverse tension, the rectangular mesh is stretched in the transverse direction, while the longitudinal dimensions shrink relatively, causing the original rectangular holes to deform and form approximately circular or elliptical openings. By controlling the stretching amplitude and the setting temperature, the roundness and aperture size of the mesh can be adjusted.

[0073] It is understood that the circular mesh in this invention can be either perfectly circular or elliptical.

[0074] Optionally, in some embodiments, when the mesh shape is a diamond-shaped mesh, the relevant parameters are as follows: Guide bar configuration and padding yarn number: Three guide bars are used, namely GB1, GB2 and GB3. Among them, GB1 and GB2 adopt symmetrical warp and satin variation structure, and GB3 is an auxiliary stabilizing guide bar.

[0075] GB1 padding yarn code: 1-0 / 2-3 / 1-2 / 0-1 / / , This structure is a warp-satin variation structure with the extension lines distributed obliquely, providing oblique boundaries for the diamond mesh.

[0076] GB2 padding yarn numbers: 2-3 / 1-0 / 2-1 / 3-2 / / , which is symmetrical to GB1. The diagonal extension lines of the two combs intersect alternately between the horizontal rows to form a diamond-shaped outline.

[0077] GB3 padding yarn number: 1-0 / 1-2 / / , adopts warp plain weave as weft guide bar, stabilizes oblique loops, and prevents mesh deformation.

[0078] How to thread the gauze: GB1: Full penetration is adopted to form the main structure of the base.

[0079] GB2: It adopts a one-through-one-open technique, with the open-through position matching the full-through position of GB1, forming a mesh area at the intersection of the diagonal extension lines.

[0080] GB3: Full penetration is adopted to enhance the overall structural stability.

[0081] With the combination of the aforementioned yarn padding numbers and yarn threading methods, the formation of the diamond-shaped mesh satisfies the following key constraints: Organizational structure constraints: The symmetrical warp satin variation of GB1 and GB2 causes the extension lines to cross obliquely between the horizontal rows, and there are no extension lines connecting the open longitudinal rows, forming a diamond-shaped mesh.

[0082] Yarn threading method constraints: The one-thread-one-open pattern of GB2, combined with the full threading of GB1 and GB3, ensures that the diagonal extension lines are broken in the open threading area, forming a stable diamond-shaped opening.

[0083] Yarn padding range constraint: The yarn padding range for both GB1 and GB2 is 3. The sum of the number of consecutive warp threads and the number of empty threads is 2 (one thread and one empty). The yarn padding range is greater than this sum (3>2) to ensure that the coil does not fall off.

[0084] Weaving parameters: Warp knitting machine type: 22-needle warp knitting machine Weaving speed: 750 r / min Weft density: 280 threads / 10cm Machine tension: 180±10N Optionally, in some embodiments, when the mesh shape is a honeycomb mesh, the relevant parameters are as follows: Guide bar configuration and yarn padding: Four guide bars are used, namely GB1, GB2, GB3, and GB4. GB1 and GB2 form the base and hexagonal outline, while GB3 and GB4 are auxiliary stabilizing guide bars. GB1 padding yarn number: 1-0 / 1-2 / 2-3 / 2-1 / / , warp variation structure, forming the base body.

[0085] GB2 padding yarn numbers: 2-3 / 2-1 / 1-0 / 1-2 / / , symmetrical to GB1, forming a basic extension line distribution of a hexagonal outline.

[0086] GB3 padding yarn code: 1-0 / 2-3 / 1-2 / 0-1 / / , warp satin variation structure, providing transverse extension lines to form hexagonal transverse boundaries.

[0087] GB4 padding yarn numbers: 2-3 / 1-0 / 2-1 / 3-2 / / , symmetrical to GB3, with a stable hexagonal structure and oblique side.

[0088] How to thread the gauze: GB1: Full Penetration GB2: Two passes and two gaps (i.e., two consecutive passes and two gaps) GB3: One through, one empty GB4: Full Penetration By arranging the open spaces of the multi-comb in a staggered manner, the open space areas are periodically distributed in both the horizontal and vertical directions, forming a hexagonal outline.

[0089] With the combination of the aforementioned yarn padding numbers and yarn threading methods, the formation of the honeycomb mesh satisfies the following key constraints: Organizational structure constraints: The padding yarns of the four combs work together to make the extension lines hexagonal in the horizontal rows, and the open areas form hexagonal openings.

[0090] Yarn threading constraint: The two threads and two gaps of GB2 and the one thread and one gap of GB3 are spatially misaligned, so that the gap areas are arranged in a staggered manner in the horizontal direction to form a hexagonal mesh array.

[0091] Yarn padding range constraint: The yarn padding range of each comb bar is 3. The maximum sum of the number of consecutive warp passes and the number of empty passes is 4 (two passes and two empty passes). If the yarn padding range is less than this sum (3<4), it is necessary to rely on multiple comb bars to work together to stabilize the coil and prevent it from falling off.

[0092] Weaving parameters: Warp knitting machine type: 22-gauge warp knitting machine (requires a four-comb patterned head) Weaving speed: 700 r / min Weft density: 290 threads / 10 cm Machine tension: 180±10 N It can be understood that the maximum size of the mesh is 0.1-0.3mm, which means that the distance between the two farthest points in the mesh is 0.1-0.3mm.

[0093] Optionally, in some embodiments, the spacing between two adjacent meshes is 1-2 mm, and the heat retention rate of the fleece is ≥30%.

[0094] Optionally, in some embodiments, the spacing between two adjacent meshes is 0.8-1mm. A smaller spacing results in a higher heat retention rate (≥32%) for the fleece, but a slightly lower air permeability.

[0095] Optionally, in some embodiments, the spacing between two adjacent meshes is 2-2.5 mm. The larger the spacing, the higher the air permeability of the fleece (≥650 mm / s), but the slightly lower the heat retention (≥28%).

[0096] By setting different mesh spacing, it is possible to adapt to the needs of different climate regions.

[0097] Please see Figure 3 Step S3, raising the nap, specifically includes the following steps: S31. Pile drawing: Feed the mesh fabric blank into the pile drawing machine and use a needle cloth roller for pile drawing. The pile drawing speed is 10-20m / min, the needle cloth roller speed is 700-900r / min, and the pile drawing depth is controlled at 0.5-0.8mm. S32. Combing: The napped fabric is fed into a combing machine for directional combing. The combing needles are perpendicular to the warp direction of the fabric. The pile height after combing is 2.2-5mm. S33. Shearing: The combed fabric is fed into a shearing machine, where a circular blade is used for shearing. The shearing speed is 5-15 m / min, the blade distance is controlled at 1.0-1.2 mm, and the pile height after shearing is 2-4.8 mm. S34. Swirling: The sheared fabric is fed into a swirling machine and swirled for 20-30 minutes at a temperature of 35-45℃ and a speed of 200-400r / min.

[0098] Optionally, the napping speed in step S31 can be 10-15m / min, 15-20m / min, etc., the needle cloth roller speed can be 700-750r / min, 750-800r / min, 800-850r / min, 850-900r / min, etc., and the napping depth can be 0.5-0.6mm, 0.6-0.7mm, 0.7-0.8mm, etc.

[0099] Optionally, the pile height after combing in step S32 can also be 2.2-3mm, 3-3.5mm, 3.5-4mm, 4-4.5mm, 4.5-5mm, etc.

[0100] Optionally, the shearing speed in step S33 can be 5-10m / min, 10-15m / min, etc., the blade distance can be controlled at 1.0-1.1mm, 1.1-1.2mm, etc., and the pile height after shearing can be 2-2.5mm, 2.5-3mm, 3-3.5mm, 3.5-4mm, 4-4.8mm, etc.

[0101] Optionally, the temperature range for the spinning process in step S34 can also be 35-38℃, 38-40℃, 40-45℃, etc., the rotation speed can also be 200-250r / min, 250-300r / min, 300-350r / min, 350-400r / min, etc., and the spinning time can also be 20-25min, 25-30min, etc.

[0102] It is understandable that the needle cloth roller for napping can be a steel wire needle cloth roller. The napping depth of 0.5-0.8mm refers to the vertical depth to which the needle cloth penetrates the surface of the fabric. Napping can evenly pull up the surface fibers of the yarn to form a basic pile surface. Combing can comb the messy fibers into an orderly arrangement perpendicular to the fabric base, strengthening the air-locking ability between fibers. Trimming can precisely cut excessively long fibers to ensure that the pile height is uniform and consistent, without height differences, improving the appearance and warmth uniformity. Swinging can allow the fibers to fully spread out and support each other, forming a three-dimensional and fluffy pile structure. After swinging, the pile fluffiness of the fleece fabric is ≥20cm. 3 / g.

[0103] This invention employs a four-step process of napping, combing, shearing, and shaking to refine the surface fibers of the fleece fabric, creating an orderly arrangement perpendicular to the base and resulting in a three-dimensional, fluffy, and highly uniform fleece surface.

[0104] Optionally, in some embodiments, step S33, the shearing process, can be omitted, and the four-step process can be simplified to three steps: napping, combing, and shaking. The combed fabric is directly sent to the shaking machine for processing, eliminating the shearing step, making the process simpler and the production efficiency higher.

[0105] The pile height of the fleece fabric produced by the three-step process is greater than that produced by the four-step process. Therefore, the three-step process is suitable for mid-to-low-end products with slightly lower requirements for appearance.

[0106] Furthermore, the fabric manufacturing process also includes the following steps: S4. Perform post-treatment on the fleece, including one or more of the following: dyeing treatment, antistatic treatment, and softening treatment.

[0107] Alternatively, dyeing, antistatic treatment, and softening treatment can be carried out in the following ways: The dyeing process can be carried out using high-temperature dyeing and finishing, which is suitable for polyester fibers and can ensure uniform dyeing without damaging the pile and mesh. The dyeing process of this invention can shorten the dyeing time by 20% and reduce energy consumption compared to traditional fleece fabrics, while maintaining a water wash fastness of ≥4. High-temperature dyeing and finishing: Place the fleece fabric in a high-temperature, high-pressure dyeing and finishing machine, add high-temperature disperse dye (concentration 2%-3%) and leveling agent (concentration 0.3%-0.7%), with a liquor ratio of 1:15; raise the temperature to 130-135℃ and maintain the dyeing temperature for 40-50 minutes to allow the dye to fully penetrate into the fiber interior, ensuring uniform dyeing; after dyeing, cool to 70-85℃ and perform reduction cleaning (reduction cleaning agent concentration 0.8%-1%, time 15-25 minutes) to remove excess dye, then rinse with clean water until neutral, and dry until the moisture content is ≤8%.

[0108] Optionally, the high-temperature disperse dye can be anzo dye, anthraquinone dye, etc.; the leveling agent can be anionic, nonionic, anionic / nonionic composite, etc.

[0109] Antistatic treatment: The dried fabric is fed into a padding machine and immersed in a cationic antistatic finishing agent solution (concentration 8%-10%) for a two-dip, two-nip treatment. Each nip is held at 35-45℃ with a nip rate of 70%-80%, ensuring the antistatic components are evenly adhered to the fiber surface. After antistatic treatment, the surface resistivity of the fleece fabric is ≥10 Ω·cm. 11 Ω.

[0110] Softening finish: Immediately after antistatic finishing, immerse in a silicone softening agent solution (concentration 3%-4%) for a one-dip-one-pinch treatment with a puffing rate of 60%-65% to improve the softness and smoothness of the napped surface and fabric. Furthermore, the post-processing of the fleece fabric also includes a shaping process, which includes pre-baking curing and shaping finishing.

[0111] Pre-baking and curing: After post-treatment, the fleece is placed in a hot air circulating oven, pre-baked at 80℃ for 10 minutes, and then heat-cured at 120℃ for 30 minutes. This allows the dye, antistatic finishing agent, or softening agent to bond firmly with the fiber, ensuring a long-lasting effect.

[0112] Alternatively, hot air setting can be used for shaping and finishing.

[0113] Hot air setting: The pre-dried and cured fabric is sent into a tenter frame with a setting temperature of 130℃, a width deviation of ±1cm, and a pre-shrinkage rate controlled at 3%-5%. This ensures the dimensional stability of the fabric and prevents shrinkage and mesh deformation after washing.

[0114] In summary, the fleece fabric prepared using the fleece fabric manufacturing process provided in the first embodiment of this invention can possess the characteristics of being lightweight, warm, and breathable, with a warmth retention rate ≥28%, an air permeability ≥550mm / s, and a weight of 100-120g / m². 2 .

[0115] The present invention will now be described in more detail with reference to embodiments and comparative examples, but the present invention is not limited to these embodiments.

[0116] Experimental Example 1: The first fleece fabric was prepared using the following process. Obtain the weaving yarn by blending the main yarn (150 / 288F polyester yarn) with the auxiliary yarn (spandex core-spun yarn, 20D spandex plus 50D polyester core-spun yarn) at a mass ratio of 98:2. Then, put the yarn into a warping machine for warping at a speed of 500m / min and a warp density of 320 yarns / 10cm. After warping, the yarn is lightly sized and then dried until the moisture content is ≤8%.

[0117] Knitting involves feeding the knitting yarn into a 22-needle, 100-inch warp knitting machine and weaving it using a warp-plain variation structure to produce a warp-knitted fabric with circular mesh openings. The maximum mesh opening size is 0.2 mm, and the spacing between two adjacent mesh openings is 1 mm.

[0118] The process involves raising and napping one side of the warp-knitted fabric. The fabric blank is fed into a napping machine, where a needle roller is used for napping at a speed of 15 m / min and a roller speed of 800 r / min. The napping depth is controlled at 0.6 mm. Next, the napped fabric is fed into a carding machine for directional carding, with the carding needles perpendicular to the warp direction. The nap height after carding is 3.4 mm. Finally, the carded fabric is fed into a shearing machine, where a circular blade is used for shearing at a speed of 10 m / min and a blade spacing of 1.1 mm. The nap height after shearing is 3.2 mm. Finally, the sheared fabric is fed into a spinning machine and spun for 25 minutes at a temperature of 40℃ and a speed of 300 r / min.

[0119] Post-treatment, high-temperature dyeing and finishing: The first fleece fabric is placed in a high-temperature, high-pressure dyeing and finishing machine, and high-temperature disperse dye (concentration 2.5%) and leveling agent (concentration 0.5%) are added at a liquor ratio of 1:15; the temperature is raised to 130℃ and dyed for 45 minutes; after dyeing, the temperature is lowered to 80℃ for reduction washing to remove floating color, then rinsed with clean water until neutral, and dried to a moisture content of 6%. Antistatic treatment: The dried fabric is sent to a padding machine and immersed in a cationic antistatic finishing agent solution (concentration 9%) for two dips and two pads. The padding temperature is 40℃, and the padding rate is 75%, so that the antistatic components are evenly attached to the fiber surface. Softening finishing: After antistatic finishing, the fabric is immediately immersed in an organosilicon softening agent solution (concentration 3.5%) for one dip and one pad, with a padding rate of 65%. For setting, the post-processed fabric is placed in a hot air circulating oven for pre-drying and curing (first pre-drying at 80℃ for 10 minutes, then heat curing at 120℃ for 30 minutes). The pre-dried and cured fabric is then sent to a tenter frame (setting temperature 130℃). The pre-shrinkage rate is controlled at 4% to obtain the first fleece fabric.

[0120] Experimental Example 2: The second piece of fleece differs from Experimental Example 1 only in that the mesh is diamond-shaped.

[0121] Experimental Example 3: The third type of velvet fabric, which differs from Experimental Example 1 only in that the mesh is honeycomb-shaped.

[0122] Experimental Example 4: The fourth type of fleece fabric, which differs from Experimental Example 1 only in that the main yarn is 150D / 240F polyester yarn.

[0123] Experimental Example 5: The fifth type of fleece fabric, which differs from Experimental Example 1 only in that the fleece was not sheared in the fleece raising process, but only three steps: fleece raising, fleece combing, and fleece shaking.

[0124] Experimental Example 6: The sixth type of velvet fabric, which differs from Experimental Example 1 only in that the maximum size of the circular mesh is 0.3 mm and the spacing between two adjacent meshes is 2.5 mm.

[0125] Experimental Example 7: The seventh type of velvet cloth, which differs from Experimental Example 1 only in that the maximum size of the circular mesh is 0.1 mm and the spacing between two adjacent meshes is 0.8 mm.

[0126] Comparative Example 1: Eighth velvet fabric, which differs from Experimental Example 1 only in that the main yarn is made of 150D / 96F polyester yarn.

[0127] Comparative Example 2: Ninth velvet fabric, which differs from Experimental Example 1 only in that the warp knitting machine uses 18 needles and 100 inches.

[0128] Comparative Example 3: Tenth velvet fabric, which differs from Experimental Example 1 only in that the warp knitting machine uses 30 needles and 100 inches.

[0129] Comparative Example 4: Eleventh Fleece, which differs from Experimental Example 1 only in that it is woven using a weft-knitting circular knitting machine with a plain weave structure and no mesh.

[0130] Comparative Example 5: Twelfth velvet cloth, which differs from Experimental Example 1 only in that the maximum size of the circular mesh is 1 mm.

[0131] Comparative Example 6: Thirteenth velvet fabric, which differs from Experimental Example 1 only in that the spacing between two adjacent meshes is 3 mm.

[0132] Comparative Example 7: Fourteenth velvet, which differs from Experimental Example 1 only in that the maximum size of the circular mesh is 1 mm and the spacing between two adjacent meshes is 3 mm.

[0133] The following describes the thickness (mm) and weight (g / m²) of the first to fourteenth fleece fabrics. 2 ), thermal insulation rate (%), moisture permeability (g / m 2 ·d), air permeability (mm / s), pile loft (cm) 3 The weight per gram (g) and the height difference of the nap (mm) were tested respectively.

[0134] For the thickness test, a digital fabric thickness gauge was selected. The sample was conditioned for 24 hours under standard atmospheric conditions. At least 5 different parts were taken. The sample was placed flat on the thickness gauge test platform. The presser foot was started and slowly lowered until it contacted the sample. The thickness value was read and the average value was taken as the final thickness.

[0135] For the gram weight test, a circular sampler (area 100 cm²) and an electronic balance (accuracy 0.001 g) were selected. Five samples were randomly cut using the circular sampler, and the mass of each sample was weighed. The mass per unit area (g / m²) was calculated, and the average value was taken.

[0136] For the thermal insulation rate test, a hot plate apparatus is selected. The sample is covered on a constant temperature hot plate, the hot plate temperature is set to 35℃, the ambient temperature is 20℃, and the relative humidity is 65%. The heat flow is measured, the thermal resistance value is calculated, and then the thermal insulation rate (%) is obtained.

[0137] For the moisture permeability test, a moisture permeability cup and a constant temperature and humidity chamber (temperature 38℃, relative humidity 90%) are selected. The sample is sealed in the mouth of the moisture permeability cup containing desiccant and placed in the constant temperature and humidity chamber. After 1 hour, the change in mass of the moisture permeability cup is weighed, and the moisture permeability per unit area over 24 hours (g / m²·d) is calculated.

[0138] For the air permeability test, select a digital air permeability meter (test pressure difference 100 Pa), clamp the sample on the test head of the air permeability meter, start the instrument to let air pass through the sample, read the air permeability (mm / s), and take the average value of 5 tests.

[0139] For the pile loft test, a pile loft tester (disc compression method) is selected. A circular sample of 100 cm² is cut and placed on the pile loft tester platform. A specified light pressure is applied and the initial thickness is measured. After applying heavy pressure, the compressed thickness is measured and the volume change per unit mass is calculated to obtain the pile loft (cm³ / g).

[0140] To test the height difference of the nap, use a microscope (with a scale), lay the sample flat on the measuring stage, select different areas of the nap, measure the height difference between the highest and lowest points of the nap, and take the maximum value as the nap height difference (mm).

[0141] The test results of Experimental Examples 1-7 are shown in Table 1, and the test results of Comparative Examples 1-7 are shown in Table 2.

[0142] Table 1: Test results of Experiments 1-7

[0143] Table 2: Test results of Comparative Examples 1-7

[0144] Please see Figure 4 The second embodiment of the present invention provides a fleece fabric 10, which is prepared by the fleece fabric preparation process provided in the first embodiment of the present invention. The fleece fabric includes a warp-knitted fabric 11 formed by weaving and a fleece surface 12 formed by napping at least one side of the warp-knitted fabric.

[0145] It is understandable that "pile 12" refers to the combination of all the pile fibers on the pile fabric.

[0146] Further reading Figure 4 and Figure 5The warp-knitted fabric 11 has several mesh openings 110. The maximum size D2 of the mesh opening 110 is 0.1-0.3 mm, and the spacing D1 between two adjacent mesh openings 110 is 0.8-2.5 mm. The area in the pile surface 12 corresponding to the mesh openings 110 forms a breathable channel. The weight of the pile fabric 10 is 100-120 g / m². 2 .

[0147] Furthermore, the thickness H1 of the warp-knitted fabric 11 is 1.8-3mm, and the height H2 of the pile 12 is 2.2-5mm.

[0148] Specifically, the thickness H1 of the warp-knitted fabric 11 can be measured using a microscope, and the height H2 of the pile 12 can be measured using the direct measurement method or instrumental method in FZ / T 01041-2014 "Determination of pile length and pile height of pile fabrics".

[0149] Optionally, in some embodiments, the maximum size D2 of the mesh 110 can also be 0.1-0.2mm, 0.2-0.3mm, etc.

[0150] Optionally, in some embodiments, the spacing between two adjacent meshes 110 can be 0.8-1mm, 1-2mm, 2-2.5mm, etc.

[0151] Optionally, in some embodiments, the thickness H1 of the warp-knitted fabric 11 can be 1.8-2mm, 2-2.5mm, 2.5-3mm, etc., and the height H2 of the pile 12 can be 2.2-3mm, 3-3.5mm, 3.5-4mm, 4-4.5mm, 4.5-5mm, etc.

[0152] Furthermore, the fleece fabric 10 has a warmth retention rate of ≥28% and an air permeability of ≥550mm / s.

[0153] Please see Figures 6a-6d The mesh 110 includes one or more different mesh shapes such as rectangular mesh, circular mesh, diamond mesh, and honeycomb mesh.

[0154] It is understood that the fleece fabric provided in the second embodiment of the present invention has the same beneficial effects as the fleece fabric preparation process provided in the first embodiment of the present invention, and will not be described in detail here.

[0155] The third embodiment of the present invention provides a textile product, which includes the fleece fabric provided in the second embodiment of the present invention.

[0156] Optionally, the textile products may be clothing, scarves, gloves, socks, blankets, baby blankets, cushions, seat cushions, etc., prepared from the fleece fabric provided in the second embodiment of the present invention.

[0157] The clothing includes tops, bottoms, bodysuits, skirts, etc., suitable for various groups of people.

[0158] It is understood that the textile products provided in the third embodiment of the present invention have the same beneficial effects as the fleece fabric provided in the second embodiment of the present invention, and will not be described in detail here.

[0159] In the embodiments provided by this invention, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0160] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also recognize that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily essential to the invention.

[0161] In various embodiments of the present invention, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0162] The foregoing has provided a detailed description of a fleece manufacturing process, fleece, and textile products disclosed in the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention. Any modifications, equivalent substitutions, and improvements made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A process for manufacturing velvet fabric, characterized in that: Includes the following steps: Obtain a braided yarn, the braided yarn comprising at least one yarn, wherein one yarn is a main yarn, the number of monofilaments of the main yarn is in the range of 240F-300F, and the ratio of the number of monofilaments to the fineness is in the range of 1.5-2; Weaving involves feeding the weaving yarn into a warp knitting machine and weaving it using a warp-plain variation structure to produce a warp-knitted fabric with mesh openings. The maximum size of the mesh openings is 0.1-0.3 mm, and the spacing between two adjacent mesh openings is 0.8-2.5 mm. Pile fabric is obtained by pile-forming at least one side of the warp-knitted fabric.

2. The fleece manufacturing process as described in claim 1, characterized in that: The braided yarn also includes at least one auxiliary yarn, which includes at least one of polyester-coated spandex core-spun yarn and polyester elastic yarn; the main yarn includes 150D / 288F polyester yarn or 150D / 240F polyester yarn.

3. The fleece manufacturing process as described in claim 2, characterized in that: Obtaining knitting yarn specifically includes the following steps: The main yarn and the auxiliary yarn are blended at a mass ratio of (95-98):(2-5); After blending, the yarn is placed into a warping machine for warping treatment at a speed of 400-600 m / min. After warping, the yarn undergoes light sizing and then dewatering until the moisture content of the knitting yarn is ≤8%.

4. The fleece manufacturing process as described in claim 1, characterized in that: The weaving process parameters of the warp knitting machine are set as follows: weaving speed 700-900 r / min, weft density 250-350 wefts / 10cm, and machine tension 170-190N.

5. The fleece manufacturing process as described in claim 1, characterized in that: The weight of the warp-knitted fabric is 80-90 g / m². 2 The weight of the fleece fabric is 100-120 g / m². 2 .

6. The fleece manufacturing process as described in claim 1, characterized in that: The napping process specifically includes the following steps: The fabric blank is fed into a napping machine and napped using a needle cloth roller. The napping speed is 10-20 m / min, the needle cloth roller speed is 700-900 r / min, and the napping depth is controlled to be 0.5-0.8 mm. The napping process involves feeding the napped fabric into a napping machine for directional napping. The direction of the napping needles is perpendicular to the warp direction of the fabric, and the nap height after napping is 2.2-5mm. The combed fabric is fed into a spinning machine and spun for 20-30 minutes at a temperature of 35-45℃ and a speed of 200-400r / min.

7. The fleece manufacturing process as described in claim 6, characterized in that: Between combing and spinning the pile is shearing, which includes the following steps: The combed fabric is fed into a shearing machine, where a circular blade is used to shear the pile at a speed of 5-15 m / min and a blade spacing of 1.0-1.2 mm. The pile height after shearing is 2-4.8 mm. The sheared fabric is then fed into a reeling machine for further processing.

8. The fleece manufacturing process as described in claim 1, characterized in that: The fabric manufacturing process also includes the following steps: The fabric is then subjected to post-treatment, which includes one or more of the following: dyeing treatment, antistatic treatment, and softening treatment.

9. A type of velvet fabric, characterized in that: The fleece fabric is prepared using the fleece fabric preparation process as described in any one of claims 1-8. The fleece fabric comprises a warp-knitted greige fabric formed by weaving and a pile surface formed by napping on at least one side of the warp-knitted greige fabric. The warp-knitted greige fabric has a plurality of mesh openings, the maximum size of which is 0.1-0.3 mm, and the spacing between two adjacent mesh openings is 0.8-2.5 mm. Breathable channels are formed in the area of ​​the pile surface corresponding to the mesh openings. The weight of the fleece fabric is 100-120 g / m². 2 .

10. A textile product, characterized in that: The textile product includes the fleece fabric as described in claim 9.

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