Sewing-free down quilt cover capable of being directly filled with down and preparation method of sewing-free down quilt cover
By connecting the jacquard structure of the double-layer fabric, the down comforter cover is formed in one piece, which solves the problems of down leakage and down running that are common in traditional sewn comforters. This improves down-proofness, breathability, and softness, and simplifies the production process.
Patent Information
- Application Number
- CN202511409799.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2025-12-26
AI Technical Summary
Traditional down comforter covers suffer from problems such as down leakage channels, down shifting, and poor durability due to their stitching process. Furthermore, the existing double-layer fabric connection method affects softness and breathability.
It adopts a double-layer fabric structure, which is directly connected by jacquard, plain weave, twill, or satin weave structures to form independent cells, achieving a seamless one-time molding design. It is combined with blended yarns such as polyester and silk, and woven in one go using jacquard looms and other equipment.
It achieves improved down-proofness, breathability, and softness of seamless direct-fill down comforter covers, simplifies the production process, reduces costs, and improves warmth retention and smoothness of appearance.
Smart Images

Figure CN121196318A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of textile technology, and in particular to a sewing-free, directly filled down comforter cover and its preparation method. Background Technology
[0002] Down comforters, as a highly warm and comfortable home textile product, are widely used in homes, hotels, and other living environments. Traditional down comforter covers are often constructed using a single layer of fabric sewn together, dividing the cover into several compartments through stitching or quilting before filling with down. This type of product generally suffers from the following technical problems: Firstly, the sewing process relies heavily on post-processing, increasing labor costs and easily creating down leakage channels at the seams, affecting overall down-proof performance and durability. Secondly, traditional sewn-on down comforter covers struggle to achieve good compartmentalized sealing, leading to down leakage and shifting after filling, thus affecting warmth and the smoothness of the appearance.
[0003] To overcome these shortcomings, some studies have attempted to use a double-layer fabric structure, achieving down filling through pre-reserved filling openings. However, existing double-layer fabrics are joined using methods such as sewing, composite adhesive bonding, or ultrasonic pressing. Sewing still results in down leakage; while composite adhesive bonding or ultrasonic pressing sacrifices the fabric's softness and breathability.
[0004] Therefore, there is an urgent need to develop a double-layered down comforter cover with a complete structure, no sewing required, good down-proof performance, and the ability to directly fill with down, and to develop a corresponding efficient molding and weaving process to improve product performance, optimize production processes, and reduce manufacturing costs. Summary of the Invention
[0005] In view of this, the purpose of this invention is to provide a seamless, directly-filled down comforter cover and its preparation method. The seamless, directly-filled down comforter cover of this invention reduces the risk of down leakage, has good down-proof properties, and ensures softness and breathability.
[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: This invention provides a sewn-free, directly filled down comforter cover, comprising an upper fabric and a lower fabric; The upper fabric includes a connecting area and a compartment area; The lower fabric includes a connecting area and a compartment area; The connection area of the upper fabric and the connection area of the lower fabric are arranged opposite to each other, and the cell areas of the upper fabric are arranged opposite to each other. The upper and lower fabrics are directly connected by oppositely arranged connecting areas; the connection method is a jacquard weave, plain weave, twill weave, or satin weave. The opposing compartment areas in the upper and lower fabrics are separated into independent compartments by connecting areas; The cell structures of the upper and lower fabrics are independently plain weave, twill weave, satin weave, or jacquard weave.
[0007] Preferably, the warp yarn of the sewing-free, directly-filled down comforter cover includes a blend of one or more yarns selected from polyester yarn, nylon yarn, recycled polyester yarn, Tencel yarn, silk yarn, modal yarn, and viscose yarn. The weft yarn of the seamless, directly filled down comforter includes a blend of one or more of the following yarns: polyester yarn, nylon yarn, recycled polyester yarn, Tencel yarn, silk yarn, modal yarn, viscose yarn, and spandex yarn.
[0008] Preferably, the warp density of the upper and lower fabrics is 40-120 threads / cm and the weft density is 40-120 threads / cm, respectively.
[0009] Preferably, the cell is polygonal or circular in shape.
[0010] Preferably, the distance between adjacent cells is ≥0.3cm.
[0011] Preferably, a down filling channel is reserved between adjacent compartments, and the width of the down filling channel is ≥1cm.
[0012] The present invention also provides a method for preparing the sewing-free, directly-filled down comforter cover described in the above technical solution, comprising the following steps: S1. Selection of warp and weft yarns; S2. Structure Design: Construct the structure of the upper and lower layers of fabric, and set the structure cycle unit and the total number of warp and weft yarns; S3. Fabric process parameter design: Determine warp density, weft density, jacquard weave structure, and cell division method; S4. Weaving: One-time forming weaving is completed using jacquard looms, boucle looms and shuttleless looms; S5. Dyeing and finishing: This includes pre-setting, dyeing, and calendering in sequence.
[0013] Preferably, in step S4, the shuttleless loom is a water jet loom, a rapier loom, or an air-jet loom.
[0014] Preferably, in step S4, during the weaving process, the weft yarn is fed by the shuttleless loom; the warp yarn is fed to the heald frame via a double warp beam or a single warp beam.
[0015] Preferably, the calendering temperature is 150~180℃.
[0016] This invention provides a sewn-free, directly filled down comforter cover.
[0017] This invention has the following significant technical effects and advantages: 1. Structural Innovation: The sewing-free, directly filled down comforter cover of this invention uses an upper and lower layer weave structure (jacquard, plain weave, twill, or satin weave) connection technology to achieve one-time weaving of the down comforter cover, eliminating the need for sewing and secondary filling structure, and completely solving the problem of down leakage from seams.
[0018] 2. Simplified process: There is no need to sew the inner lining and compartments separately. The filling channel is reasonably reserved, and the filling operation is simple and quick, which significantly reduces production costs and labor.
[0019] 3. Enhanced comfort: With the elimination of the stitched structure, the down is distributed more naturally and fluffily inside the duvet cover, improving warmth; the fabric surface is smooth, flat, and aesthetically pleasing, meeting the demands of high-quality home furnishing products.
[0020] 4. Improved breathability, down-proofness and softness: Compared with composite adhesive or ultrasonic pressing, the down comforter cover of the present invention retains the softness and breathability of the fabric.
[0021] 5. Adaptable to various yarn combinations: Warp and weft yarns can be selected from polyester, Tencel, silk, Modal or viscose yarns according to actual needs, improving product diversity and personalized development capabilities.
[0022] 6. High adaptability: The yarn and weaving used in this invention are all conventional equipment and raw materials in the textile industry, which has good industrialization feasibility and market promotion potential.
[0023] In summary, this invention has significant innovation and practical value in terms of structural design, process flow and product functionality. It overcomes the limitations of existing technologies and has good application prospects and industrialization potential.
[0024] The present invention also provides a method for preparing the seamless, directly-filled down comforter cover described in the above technical solution. The present invention uses a jacquard loom, a multi-arm loom, and a shuttleless loom to complete the one-time forming weaving; calendering improves the down-proof properties of the seamless, directly-filled down comforter cover. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the dimensions and structure of the sewing-free, directly filled down comforter cover in Example 1; Figure 2 This is a picture of the sewing-free, directly filled down comforter cover from Example 1; Figure 3 This is a diagram of the filling channel for the sewing-free, direct-fill down comforter cover in Example 1. Detailed Implementation
[0026] This invention provides a sewn-free, directly filled down comforter cover, comprising an upper fabric and a lower fabric; The upper fabric includes a connecting area and a compartment area; The lower fabric includes a connecting area and a compartment area; The connection area of the upper fabric and the connection area of the lower fabric are arranged opposite to each other, and the cell area of the upper fabric and the cell area of the lower fabric are arranged opposite to each other. The upper and lower fabrics are directly connected by oppositely arranged connecting areas, and the weave structure of the connecting areas is a jacquard weave, plain weave, twill weave, or satin weave. The opposing compartment areas in the upper and lower fabrics are separated into independent compartments by connecting areas; The cell structures of the upper and lower fabrics are independently plain weave, twill weave, satin weave, or jacquard weave.
[0027] In this invention, the equipment and raw materials used, unless otherwise specified, are all commonly used materials and general-purpose equipment in the art, and can be obtained through commercial channels. The process operations in the following embodiments are also methods well known to those skilled in the art.
[0028] The seamless, directly-filled down comforter cover provided by this invention includes an upper fabric. In this invention, the upper fabric includes a connecting area and a compartmentalized area. In this invention, the weave structure of the compartmentalized area of the upper fabric is plain weave, twill weave, satin weave, or jacquard weave.
[0029] The seamless, directly-filled down comforter cover provided by this invention includes a lower fabric layer. In this invention, the lower fabric layer includes connecting areas and compartment areas. In this invention, the weave structure of the compartment areas of the lower fabric layer is plain weave, twill weave, satin weave, or jacquard weave, more preferably plain weave.
[0030] In this invention, the upper and lower fabrics of the seamless, directly filled down comforter are distinguished according to their usage state. The upper fabric refers to the side facing upwards when in use, and the lower fabric refers to the side facing downwards when in use. Specifically, the side in contact with the human body is the lower fabric, and the other side is the upper fabric.
[0031] In this invention, the connection area of the upper fabric and the connection area of the lower fabric are arranged opposite to each other.
[0032] In this invention, the cell regions of the upper fabric and the cell regions of the lower fabric are arranged opposite to each other.
[0033] In this invention, the upper and lower fabrics are directly connected by oppositely arranged connecting areas. The connection method is a jacquard weave, plain weave, twill weave, or satin weave, preferably a jacquard weave.
[0034] In this invention, the cell regions that are arranged opposite to each other in the upper and lower fabrics are separated into independent cells by connecting regions.
[0035] In this invention, the shape of the compartment is preferably polygonal or circular, and more preferably polygonal; the polygon is specifically preferably square, rectangle, regular pentagon, or regular hexagon. In one specific embodiment of this invention, the side length of the square is preferably 24.5 cm.
[0036] In this invention, the distance between adjacent cells is preferably ≥0.3cm, more preferably 0.3~2cm, and specifically preferably 0.3cm, 0.5cm, 1cm, 1.5cm, or 2cm. In this invention, the distance between adjacent cells is also the width of the connecting area. Setting the distance between adjacent cells to ≥0.3cm ensures that the cells are independently divided and not easily deformed, while also maximizing the aesthetics and dimensional stability of the fabric.
[0037] In this invention, a down filling channel is preferably reserved between adjacent compartments. The width of the down filling channel is preferably ≥1cm, more preferably 1~10cm, and specifically preferably 1cm, 2cm, 3cm, 5cm, 8cm or 10cm.
[0038] In this invention, at least 6cm of raw edge is maintained between the compartment and the seamless, directly filled down comforter cover to ensure the dimensional accuracy and aesthetics of the finished product.
[0039] In this invention, the warp direction of the seamless, directly filled down comforter cover preferably has an 8-10cm wide gap between every 5-6 compartments for process buffering and structural stability.
[0040] In one specific embodiment of the present invention, the effective width of the seamless, directly filled down comforter cover is 206cm, with 8 compartments in the weft direction, each compartment being 20-30cm wide, and a filling channel ≥1cm wide between adjacent compartments; an 8-10cm wide gap is provided between every 5-6 compartments in the warp direction for process buffering and structural stability; a distance of at least 6cm is maintained between the compartments and the raw edge of the width to ensure the dimensional accuracy and aesthetics of the finished product.
[0041] In this invention, the warp yarn of the seamless, directly-filled down comforter cover preferably comprises a blend of one or more yarns selected from polyester yarn, nylon yarn, recycled polyester yarn, Tencel yarn, silk yarn, modal yarn, and viscose yarn. In one specific embodiment of this invention, the warp yarn of the seamless, directly-filled down comforter cover is preferably 75D / 72F polyester fine denier yarn.
[0042] In this invention, the weft yarn of the seamless, direct-fill down comforter cover includes a blend of one or more yarns selected from polyester, nylon, recycled polyester, Tencel, silk, modal, viscose, and spandex. In a specific embodiment of this invention, the weft yarn of the seamless, direct-fill down comforter cover is preferably a blend of 2.1D / 192F polyester fine denier filament and 1.6D silk, or a blend of 2.1D / 192F polyester fine denier filament and 1.8D Tencel fiber; the preferred mass ratio of the 2.1D / 192F polyester fine denier filament to 1.6D silk blend is 2:1; the preferred mass ratio of the 2.1D / 192F polyester fine denier filament to 1.8D Tencel fiber blend is 3:1. In this invention, the selection of the above-mentioned weft yarn can meet the requirements of both softness and strength of the fabric.
[0043] In this invention, the warp density of the upper and lower fabrics is the same. Preferably, the warp density of the upper fabric is 40-120 warp threads / cm, specifically preferably 40, 50, 60, 62, 70, 80, 90, 100, 110, or 120 warp threads / cm.
[0044] In this invention, the weft density of the upper and lower fabrics is the same. Preferably, the weft density of the upper fabric is 40-120 threads / cm, specifically 40, 50, 52, 60, 70, 80, 90, 100, 110, or 120 threads / cm.
[0045] The present invention also provides a method for preparing the sewing-free, directly-filled down comforter cover described in the above technical solution, comprising the following steps: S1. Selection of warp and weft yarns; S2. Structure Design: Construct the structure of the upper and lower layers of fabric, and set the structure cycle unit and the total number of warp and weft yarns; S3. Fabric process parameter design: Determine warp density, weft density, jacquard weave structure, and cell division method; S4. Weaving: One-time forming weaving is completed using jacquard looms, boucle looms and shuttleless looms; S5. Dyeing and finishing: This includes pre-setting, dyeing, and calendering in sequence.
[0046] This invention involves the selection of warp and weft yarns. In this invention, the selection of warp and weft yarns is based on actual needs.
[0047] This invention involves the design of the fabric structure: constructing the structure of the upper and lower layers, and setting the weave repeat units and the total number of warp and weft yarns. In this invention, the fabric structure is designed according to actual needs.
[0048] This invention designs fabric process parameters: determining warp density, weft density, jacquard weave structure, and cell division method. In this invention, fabric process parameters are designed according to actual needs.
[0049] The present invention is used for weaving: a jacquard loom, a multi-arm loom, and a shuttleless loom are used to complete the one-time forming weaving.
[0050] In this invention, the shuttleless loom is preferably a water jet loom, a rapier loom, or an air-jet loom, and more preferably a water jet loom.
[0051] In this invention, during the weaving process, the weft yarn is preferably fed by the shuttleless loom; the warp yarn is preferably fed to the heald frame via a double warp beam or a single warp beam.
[0052] After weaving, the present invention performs dyeing and finishing processes, including pre-setting, dyeing and calendering in sequence.
[0053] In this invention, the calendering temperature is preferably 150~180℃. In this invention, when the calendering temperature is 150~160℃, the air permeability of the seamless, directly-filled down comforter is 10~15mm / s; when the calendering temperature is 180℃, the air permeability of the seamless, directly-filled down comforter is 15~20mm / s.
[0054] After calendering, the present invention preferably further includes finished product processing. In the present invention, the finished product processing preferably includes performing positioning checks according to the compartment design in sequence, and filling with down through the down filling channel.
[0055] The following detailed description, in conjunction with embodiments, illustrates the seamless, directly-filled down comforter cover and its preparation method provided by the present invention. However, these descriptions should not be construed as limiting the scope of protection of the present invention.
[0056] Example 1 Structural design and preparation method of a sewn-free down comforter cover based on polyester and silk blended yarn.
[0057] The seamless, directly filled down comforter features a double-layer fabric one-piece molding structure, consisting of an upper fabric and a lower fabric; the upper and lower fabrics are connected by a jacquard weave structure.
[0058] During the weaving process, by controlling the changes in the fabric structure, the upper and lower layers of fabric are interwoven and connected in specific areas through a jacquard weave structure to form multiple closed cells, which can achieve direct filling of down without sewing.
[0059] The cell areas of the upper fabric adopt a plain weave structure, and the cell areas of the lower fabric also adopt a plain weave structure, which helps to maintain the overall stability and flatness of the fabric. The connecting area is formed by the interlacing of the warp and weft yarns of the upper and lower layers to form a jacquard structure, which firmly connects the two layers and defines the filling area. Different patterns can be woven according to design needs to enhance the visual appeal.
[0060] In terms of raw material selection: the warp yarn is made of 75D / 72F polyester fine denier yarn, and the weft yarn is made of 2.1D / 192F polyester fine denier yarn and 1.6D silk, with a blending ratio of 2:1, taking into account strength, hand feel and warmth performance.
[0061] In terms of weaving density: the warp density is 62 threads / cm and the weft density is 52 threads / cm, effectively ensuring the fabric's density and softness.
[0062] In terms of size and structure, specifically as follows Figure 1 As shown: The effective width of the seamless, directly-filled down comforter cover is 206cm. It has 8 independent compartments in the weft direction, each 24.5cm wide, with a 5cm un-woven area between adjacent compartments as a filling channel. The distance between adjacent compartments is 0.3cm. In the warp direction, an 8cm gap is provided between every 6 compartments for buffering. To ensure the integrity of the finished edge, at least 6cm is reserved from the raw edge of each compartment.
[0063] In terms of process implementation, the first step is to prepare for the machine setup, setting the total number of warp yarns to 32,960 based on the weave structure and width requirements. A single warp beam is used to feed the warp yarns, with the raw material on the beam divided into upper and lower layers. The warp yarns are threaded into six heald frames, with the corresponding number of warp yarns inserted according to different weave requirements. The weft yarns are introduced via a water-jet loom, and the weaving is controlled in conjunction with jacquard and dobby looms to achieve one-time weaving of the upper and lower layers of fabric. After the fabric is woven, it enters the dyeing and finishing stage, including pre-setting, dyeing, and calendering. The calendering temperature is 160℃ to improve dimensional stability and comfort. The final fabric has excellent down-proof properties, structural integrity, and a smooth appearance, and can be directly used for down filling, eliminating the need for sewing and paneling processes required for traditional down comforter covers.
[0064] The actual image of the seamless, directly-filled down comforter cover in this embodiment is shown below. Figure 2As shown, it has many advantages such as structural innovation, simplified process, convenient filling, fluffy warmth, and smooth appearance, making it suitable for mass production of modern high-quality home textile products.
[0065] Figure 3 This is a diagram of the filling channel for the sewing-free, direct-fill down duvet cover obtained in this embodiment.
[0066] The air permeability of the seamless down-filled comforter, tested according to GB / T5453-1997, and the down-proof properties of the seamless down-filled comforter, tested according to QB / T1193-2023, are as follows: the air permeability of the seamless down-filled comforter is 7mm / s; the number of down fibers leaking out in an area of 50.1cm×38cm after filling is less than 30.
[0067] Example 2 Structural design and preparation method of a sewn-free, directly-filled down duvet cover based on polyester and Tencel blended yarn.
[0068] The seamless, directly filled down comforter cover uses a double-layer fabric one-piece molding structure, consisting of an upper fabric and a lower fabric; the upper and lower fabrics are connected by a jacquard weave structure.
[0069] During the weaving process, by controlling the changes in the fabric structure, the upper and lower layers of fabric are interwoven in specific areas through jacquard weave to form closed cells, thus achieving the function of seamless direct filling of down.
[0070] In this structure, the cell areas of the upper fabric use a plain weave, and the cell areas of the lower fabric also use a plain weave, which helps to enhance the stability and smoothness of the fabric. The upper and lower fabrics are interwoven at specific locations through connecting areas to form a jacquard structure (used to express patterns and designs, enhance visual effects and market added value), forming independent cells, i.e., filling spaces, eliminating the need for traditional sewing processes.
[0071] In terms of raw material selection, the warp yarn still uses 75D / 72F polyester fine denier filament, while the weft yarn is a blend of 2.1D / 192F polyester fine denier filament and 1.8D Tencel fiber, with the blending ratio adjusted to 3:1. Tencel fiber, as a green and environmentally friendly regenerated cellulose raw material, possesses natural luster, soft hand feel, good skin-friendliness, and excellent moisture absorption, significantly improving the comfort and sustainability of the fabric. It is especially suitable for use in intimate bedding, meeting the ecological requirements of high-end home textiles.
[0072] In terms of fabric density, the warp density is 62 threads / cm and the weft density is 52 threads / cm, which ensures good fabric density and downproof performance while taking into account breathability and flexibility.
[0073] In terms of structural design, the effective width of the down comforter cover is 206cm, divided into 8 compartments in the weft direction. Each compartment is 25cm wide, with a 4cm un-woven area between adjacent compartments as a filling channel. The distance between adjacent compartments is 0.3cm. In the warp direction design, a 10cm gap is reserved every 5 compartments to buffer tension and facilitate subsequent processing. The edge of each compartment is at least 6.5cm from the raw edge of the width to ensure smooth subsequent sewing or overlocking processes, while also enhancing the overall yield and dimensional stability of the product.
[0074] In terms of weaving technology, a double warp beam system is used to feed the warp yarns. The upper warp beam supplies the warp yarns needed for the upper layer of fabric, while the lower warp beam supplies the warp yarns needed for the lower layer. The weft yarns are introduced through a water-jet loom, and the warp yarns are threaded into six heald frames. Precise control of the interlacing structure is achieved in conjunction with jacquard and dobby looms. The fabric is woven in a single pass, eliminating the need for subsequent sewing and splicing. Finishing processes also include pre-setting, dyeing, and calendering to ensure dimensional stability and a soft hand feel. The excellent dyeability of Tencel also gives this duvet cover superior colorfastness during the dyeing and finishing process.
[0075] The air permeability of the seamless down-filled comforter was tested using GB / T5453-1997, and the down-proofness was tested using QB / T1193-2023. The results are as follows: the air permeability of the seamless down-filled comforter is 6mm / s, and the number of down fibers that leak out in an area of 50.1cm×38cm after filling is <30.
[0076] The seamless, directly-filled down comforter cover in this embodiment retains the advantages of integrated structure and seamless direct filling. By optimizing the weft yarn raw materials and introducing Tencel, the finished fabric is further improved in terms of environmental protection, comfort and high-end texture, making it suitable for the high-end home textile consumer market that pursues a natural and healthy sleep experience.
[0077] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A sewing-free, directly-filled down comforter cover, characterized in that, Includes an upper layer fabric and a lower layer fabric; The upper fabric includes a connecting area and a compartment area; The lower fabric includes a connecting area and a compartment area; The connection area of the upper fabric and the connection area of the lower fabric are arranged opposite to each other, and the cell area of the upper fabric and the cell area of the lower fabric are arranged opposite to each other. The upper and lower fabrics are directly connected by oppositely arranged connection areas, and the connection method is jacquard weave, plain weave, twill weave or satin weave. The opposing compartment areas in the upper and lower fabrics are separated into independent compartments by connecting areas; The cell structures of the upper and lower fabrics are independently plain weave, twill weave, satin weave, or jacquard weave.
2. The seamless, directly-filled down comforter cover according to claim 1, characterized in that, The warp yarns of the seamless, directly filled down comforter cover include blended yarns of one or more of the following: polyester yarn, nylon yarn, recycled polyester yarn, Tencel yarn, silk yarn, modal yarn, and viscose yarn. The weft yarn of the seamless, directly filled down comforter includes a blend of one or more of the following yarns: polyester yarn, nylon yarn, recycled polyester yarn, Tencel yarn, silk yarn, modal yarn, viscose yarn, and spandex yarn.
3. The seamless, directly-filled down comforter cover according to claim 1, characterized in that, The warp density of the upper and lower fabrics is independently 40-120 threads / cm, and the weft density is independently 40-120 threads / cm.
4. The seamless, directly-filled down comforter cover according to claim 1, characterized in that, The cells are polygonal or circular in shape.
5. The seamless, directly-filled down comforter cover according to claim 1, characterized in that, The distance between adjacent cells is ≥0.3cm.
6. The seamless, directly-filled down comforter cover according to claim 1, characterized in that, A down filling channel is reserved between adjacent compartments, and the width of the down filling channel is ≥1cm.
7. The method for preparing a sewing-free, directly-filled down comforter cover according to any one of claims 1 to 6, characterized in that, Includes the following steps: S1. Selection of warp and weft yarns; S2. Structure Design: Construct the structure of the upper and lower layers of fabric, and set the structure cycle unit and the total number of warp and weft yarns; S3. Fabric process parameter design: Determine warp density, weft density, jacquard weave structure, and cell division method; S4. Weaving: One-time forming weaving is completed using jacquard looms, boucle looms and shuttleless looms; S5. Dyeing and finishing: This includes pre-setting, dyeing, and calendering in sequence.
8. The preparation method according to claim 7, characterized in that, In step S4, the shuttleless loom is a water jet loom, a rapier loom, or an air-jet loom.
9. The preparation method according to claim 7, characterized in that, In step S4, during the weaving process, the weft yarn is fed by the shuttleless loom; the warp yarn is fed to the heald frame via a double warp beam or a single warp beam.
10. The preparation method according to claim 7, characterized in that, The calendering temperature is 150~180℃.