Warp-knitted concave-convex dot jacquard double-faced plush fabric and production process

Abstract

The invention discloses a warp-knitted concave-convex dot jacquard double-faced plush fabric and a production process, and belongs to the technical field of textile. Knitting is carried out on a single needle bar warp knitting machine, and the warp knitting machine is provided with four guide bars; wherein the GB1 and the GB2 have the same yarn laying rule, yarns with different luster and color are adopted for symmetrical yarn laying weaving, and continuous convex-concave dot jacquard patterns are formed by designing the drawing-in number and the empty drawing-in number of the two guide bars; the GB3 and the GB4 are woven into base cloth with a stable structure; gB3 is fully threaded with polyester to weave a middle ground weave, and GB4 is fully threaded with spandex to endow the weave with elasticity. The process breaks through the limitation that a traditional knitted velvet fabric is single in surface effect and lack of layering sense; the three-dimensional jacquard patterns do not depend on the processes of embossing, burnt-out and the like of after-treatment, and the fabric can have rich touch concave-convex feeling and visual three-dimensional feeling. The aesthetic requirement of the market for high-grade furniture fabric is met, and the fashion sense and the market additional value of the product are remarkably improved.

Description

Technical Field

[0001] This invention relates to a warp-knitted jacquard double-sided fleece fabric with raised dot pattern and its production process, belonging to the field of textile technology. Background Technology

[0002] With the continuous development and improvement of economic levels, people's demand for textile fabrics has gradually expanded from simple clothing to decorative, industrial, and multifunctional applications. Currently, there are many types of fabrics available for sofas, chairs, and other furniture, among which velvet fabrics are increasingly favored due to their soft touch, elegant appearance, and comfortable seating experience. Common velvet fabrics on the market are mainly formed using woven and knitted techniques, with woven fabrics accounting for the majority of the market. However, in recent years, due to the widespread application of finishing methods such as embossing and burnout, the market for warp-knitted velvet fabrics has expanded.

[0003] Currently, most knitted fleece fabrics are plain weave, cut pile, or simple jacquard fleece, with relatively simple structure and surface effect, lacking three-dimensionality. Some fabrics with raised textures achieve this through embossing processes in finishing, but this texture has poor durability and tends to disappear after multiple washes.

[0004] For example, when a double-needle bed warp knitting machine is used to weave jacquard double-sided fleece fabric, it is necessary to first weave a double-layer fabric, then cut the pile in the middle to form two independent fleece fabrics before laminating them. This significantly increases the production process and machine energy consumption. At the same time, the jacquard double-sided fleece formed by the lamination process will have a noticeable close-fitting feel and affect the fabric's breathability. In addition, in order to obtain a rich jacquard effect during the weaving of warp-knitted jacquard fleece fabric, a dyeing and finishing process is usually selected, but this operation increases production costs and wastes raw materials, and some dyes will increase the environmental burden. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a warp-knitted jacquard double-sided fleece fabric with raised dot pattern and its production process. Specifically, this process utilizes a warp satin weave and a warp plain weave, woven on a single-needle bed warp knitting machine. During the knitting process, a double-sided jacquard structure is formed. Further finishing processes such as napping and shearing achieve the fleece effect without additional steps. This results in a more robust loop structure and better breathability. The single-needle bed warp knitting technology, using polyester of different colors and lusters during weaving, imparts a unique luster and jacquard effect to the fabric, increases the durability of the fabric's surface texture, and extends its lifespan. On the front side, raised dots are formed through a multi-needle pitch warp satin weave, while on the reverse side, shorter extension lines are formed through a warp plain weave. Both sides are then finished with napping and shearing to create the double-sided fleece effect.

[0006] The principle of this invention is that GB1 and GB2 form a multi-gauge variation warp plain weave, using two yarns of different colors and lusters to alternately form loops in a certain regular pattern, visually creating a jacquard pattern of intersecting color blocks. At the same time, the multi-gauge padding yarn and some loops do not undergo needle back lateral movement, and the long floats are exposed on the reverse side of the process, which can form a napped structure after a napping and shearing process.

[0007] The motion diagram of the comb bar structure of embossed jacquard double-sided fleece (GB1-GB4) is shown below. Figure 1 As shown.

[0008] GB1 and GB2 have the same backing yarn pattern, forming the same variation of the plain weave. In the looped areas, the yarn is tightly woven into the base fabric, creating a slightly raised appearance. However, due to the long-needle backing yarn, the yarn appears as long floats on the back of the fabric, and because it is not tightly looped, it appears recessed relative to the raised areas. Combined with the opposite warp threading patterns of GB1 and GB2, as well as the differences in color, luster, and elasticity of the yarns used, these two types of yarns alternate on the fabric surface, creating a distinct jacquard effect. Furthermore, the differences in yarn color and luster further amplify the visual depth of the jacquard; areas with dull luster, lighter color, and less elasticity appear raised on the fabric surface, while areas with bright luster, darker color, and greater elasticity appear recessed. GB3 and GB4 form a symmetrical two-needle plain weave, constituting the ground weave. GB4 uses spandex filaments to provide transverse elasticity to counteract the irregular stretching caused by the long floats of the variable plain weave, making the plain weave structure more compact. During finishing, the front side is subjected to napping and shearing processes to increase the fabric's bulk, while the reverse side is subjected to napping due to the presence of long extension lines, ultimately resulting in a double-sided fleece fabric.

[0009] To achieve the above objectives, the following technical solution is provided: This invention provides a production process for warp-knitted jacquard double-sided fleece fabric with raised dot pattern. The process is carried out on a single-needle bed warp knitting machine equipped with four guide bars. GB1 and GB2 have the same backing yarn pattern, using yarns with different luster and color for symmetrical backing yarn knitting. The continuous raised dot jacquard pattern is formed by designing the number of warp passes and the number of open passes on the two guide bars. GB3 and GB4 are knitted into a stable base fabric. GB3 is fully knitted with polyester in the middle, and GB4 is fully knitted with spandex to give the fabric elasticity.

[0010] In one embodiment, the production process steps are as follows: 1) Material selection: Polyester and spandex are selected as raw materials; 2) Warping: The single-needle bed four-comb tricot warp knitting machine uses GB3 and GB4 to knit a stable base fabric. GB3 is fully threaded with polyester to knit the middle ground structure, and GB4 is fully threaded with spandex to give the structure elasticity. GB1 and GB2 use yarns with different luster and color to knit symmetrically with padding yarns. The continuous pattern is formed by designing the number of warp threads and the number of loops of the two guide bars. The total number of warp threads of GB1 and GB2 is m + n = the number of stitches of the two identical structure, where n is the number of warp threads and m is the number of loops. The number of warp heads of each guide bar is calculated according to the width and machine size. 3) Weaving: Single-needle bed knitting machine is used for weaving; during weaving, GB1 and GB2 knit multi-needle variation warp plain weave to form patterned designs, and long extension lines are exposed on the reverse side of the fabric. GB3 and GB4 use two-needle warp plain weave to form the base fabric.

[0011] 4) Post-treatment: brushing, trimming, etc.

[0012] 5) Testing and packaging.

[0013] In one embodiment, GB1 and GB2 in step 2) are made of polyester with different colors and luster, GB3 is made of ordinary polyester, and GB4 is made of spandex with elasticity and softness.

[0014] In one embodiment, the polyester is a light red matte polyester and a dark red bright cationic polyester; the elongation of the polyester is 40% to 70%.

[0015] In one embodiment, GB1 and GB2 are made of semi-dull polyester and elastic polyester PET, GB3 is made of ordinary polyester, and GB4 is made of elastic and soft spandex.

[0016] In one embodiment, in step 2), the combs GB3 and GB4 of the single-needle bed warp knitting machine are fully threaded, and the total number of threaded stitches m+n of GB1 and GB2 is equal to the number of stitches in the tissue cycle of the two identical tissue structures, wherein the number of threaded stitches m+n>2.

[0017] In one embodiment, during weaving on the single-needle bed tricot warp knitting machine in step 3), the selection of each guide bar structure and the yarn threading method are as follows: GB1: 1-0 / 4-5 / 1-0 / 4-5 / 1-0 / 2-3 / 4-5 / 3-2 / / m through n; GB2: 1-0 / 4-5 / 1-0 / 4-5 / 1-0 / 2-3 / 4-5 / 3-2 / / m empty n through; GB3: 1-0 / 1-2 / / Full penetration; GB4: 1-2 / 1-0 / / Full penetration; Among them, the total number of needles threaded through m+n = the number of tissue loops for two identical tissue structures; the number of needles threaded without threading through m>(n+m) / 2.

[0018] The scheme uses two identical padded yarn guides, GB1 and GB2, to weave a raised dot jacquard pattern. In order for two structures with the same padded yarn trajectory to form a continuous raised dot pattern, m+n = the number of repeats of the two identical structures. Since the fabric is relatively thick overall, it is stipulated that the number of yarns threaded by both guides is greater than 1. In order to make the raised dot pattern clearly visible on the fabric surface, m+n > 2.

[0019] In one embodiment, during weaving on the single-needle bed tricot warp knitting machine described in step (3), the selection and yarn threading methods for each guide bar structure are as follows: GB1: 1-0 / 7-8 / 1-0 / 7-8 / 1-0 / 2-3 / 7-8 / 3-2 / / m through n; GB2: 1-0 / 7-8 / 1-0 / 7-8 / 1-0 / 2-3 / 7-8 / 3-2 / / m void n penetration; GB3: 1-0 / 1-2 / / Full penetration; GB4: 1-2 / 1-0 / / Full penetration; GB3 and GB4 use a plain warp weave as the base fabric to enhance the smoothness and extensibility of the fabric. GB1 and GB2 use a multi-gauge variable plain warp weave, employing specific yarn threading patterns to create a raised dot jacquard effect with the yarns.

[0020] In one embodiment, the high-speed Trike warp knitting machine is an HKS4.

[0021] The present invention also provides a warp-knitted jacquard double-sided fleece fabric with raised dot pattern obtained by the process described above.

[0022] This invention also provides the application of the warp-knitted jacquard double-sided fleece fabric with raised dot pattern described above in the preparation of sofa covers and seat cushions.

[0023] Beneficial effects: (1) This invention breaks through the limitations of traditional knitted fleece fabrics, which have a single surface effect and lack of layering, by forming a double-sided fleece fabric with a jacquard structure featuring raised dots. This three-dimensional jacquard pattern does not rely on finishing processes such as embossing or burnout, but is formed directly through the combination of weaving methods and colored yarns, giving the fabric a rich tactile texture and visual three-dimensionality. This not only meets the market's aesthetic demand for high-end furniture fabrics, but also significantly enhances the product's fashion sense and market added value; (2) The variation of the plain weave formed by GB1 and GB2 of the present invention utilizes the weaving rules and yarns with different colors, luster and elasticity to form a special raised dot pattern structure that appears on the front of the process. Since the raised dot pattern is not formed by post-processing such as embossing or burnout, the structure is highly stable. This solves the shortcomings of post-processing such as embossing, which have poor texture durability and disappearance after multiple washes. This allows the fabric to maintain its original three-dimensional pattern after long-term use and repeated washing, thus extending the product's service life. (3) This invention enables the direct formation of double-sided fleece fabric with a textured effect during the weaving stage through a single-needle bed knitting process, while the traditional double-needle bed knitting process requires first weaving a double-layer fabric, then cutting the fleece from the middle to form two independent fleece fabrics, and finally laminating them together. This knitting method reduces the subsequent lamination process, significantly shortens the production process, and reduces machine energy consumption and labor costs. At the same time, the one-piece molding avoids the use of materials such as composite glue, maintaining the original soft hand feel and good breathability of the fabric; (4) This invention achieves one-time molding of jacquard double-sided fleece through an integrated molding weaving process, obtaining a jacquard effect with unique raised dot pattern, which meets the market's aesthetic demand for fleece fabrics. Furthermore, the weaving process simplifies the process by eliminating composites and complex dyeing and finishing, reducing production energy consumption while ensuring the integrity of the fabric. The jacquard pattern is not easily lost during subsequent washing, exhibiting good durability and increasing the product's lifespan. Attached Figure Description

[0024] Figure 1 This is a motion diagram of the packing yarn of a comb GB1~GB4 structure knitted by a single-needle bed four-comb warp knitting machine in Embodiment 1 of the present invention; Figure 2 This is a front view of a fabric process using a single-needle bed four-comb warp knitting machine to knit combs GB1~GB4, as described in Embodiment 1 of the present invention. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The specific embodiments described below further illustrate the present invention.

[0026] Example 1 A warp-knitted jacquard double-sided fleece fabric with raised dot pattern is composed of the following raw materials in weight percentages: 41.0% of 150D / 96f light red matte polyester FDY, 41.0% of 150D / 96f dark red bright cationic polyester FDY, 13.4% of 40D / 24f semi-dull polyester FDY, and 4.6% of 40D spandex with an elongation of 65.0%.

[0027] The specific process of its preparation is as follows: including the selection and matching of the structure of each comb, preparation process, warping, weaving, and finishing.

[0028] 1) Material selection: 150D / 96f light red matte polyester FDY, 150D / 96f dark red bright cationic polyester FDY, 40D / 24f semi-dull polyester FDY, and 40D spandex with an elongation of 65.0% are selected as raw materials. 2) Warping: Based on a width of 150cm and a warp density of 15.0wpc, GB1 and GB2 are both 2-over 2-over, while GB3 and GB4 are full over. Among them, GB1 and GB2 form raised dot patterns by weaving a variation of the warp plain weave, while GB3 and GB4 form the fabric skeleton by weaving a two-needle warp plain weave. The calculated warp head count is: GB1 and GB2 282×8, GB3 and GB4 564×8. The temperature at the warping site is 25±1℃ and the relative humidity is 65±5%. The higher and more stable temperature and humidity help stabilize the twist of the polyester yarn and make the surface soft, preventing the yarn from getting tangled and which is beneficial to the production of warp-knitted products. 3) Weaving: Weaving is carried out using a single-needle bed high-speed Tricot warp knitting machine. Model: High-speed Trik warp knitting machine HKS4 Model number: 28 pins Width: 186 inches Warp knitting structure and yarn threading method: GB1 comb: 1-0 / 4-5 / 1-0 / 4-5 / 1-0 / 2-3 / 4-5 / 3-2 / / Two through, two open; GB2: Comb: 1-0 / 4-5 / 1-0 / 4-5 / 1-0 / 2-3 / 4-5 / 3-2 / / Two gaps and two threads; GB3 comb: 1-0 / 1-2 / / Full thread; GB4 comb: 1-2 / 1-0 / / Full thread; raw material: GB1 comb: 150D / 96 light red matte polyester FDY GB2 comb: 150D / 96f deep red bright cationic polyester FDY GB3 comb: 40D / 24f semi-dull polyester FDY, GB4 comb: 40D spandex with an elongation of 65.0%.

[0029] Input the organization of the yarn padding number, warp feed amount, and draft density into the computer display screen of the control cabinet, save it, load the machine file, and start the machine; after weaving, the raw fabric is obtained, weighed, bagged, and put into storage.

[0030] 4) Finishing: brushing, trimming, shaping, etc.

[0031] 5) Testing and packaging.

[0032] Through the above processes, a warp-knitted jacquard double-sided fleece with raised dot pattern can be obtained. The first and second combs are woven with light red matte polyester and dark red bright cationic polyester to form a raised dot jacquard effect. The third comb uses ordinary semi-dull polyester, which does not damage the fabric color while weaving the ground structure. The fourth comb incorporates spandex with good extensibility, giving the fabric excellent extensibility and softness, making it suitable for use in sofas, chairs, etc.

[0033] Example 2 A warp-knitted jacquard double-sided fleece with embossed patterns is composed of the following raw materials in weight percentages: 40.0% light blue semi-dull polyester FDY (100D / 48f), 40.0% dark blue elastic polyester PET (100D / 48f) with an elongation of 25%, 15.4% semi-dull polyester FDY (50D / 24f), and 4.6% spandex (30D) with an elongation of 65.0%. The specific process of its preparation is as follows: including the selection and matching of the structure of each comb, preparation process, warping, weaving, and finishing; 1) Material selection: 100D / 48f light blue semi-dull polyester FDY, 100D / 48f dark blue elastic polyester PET with an elongation of 25%, 50D / 24f semi-dull polyester FDY, and 30D spandex with an elongation of 65.0% are selected as raw materials. 2) Warping: Based on a width of 150cm and a warp density of 15.0 wpc, GB1 and GB2 use a 2-over 2-over pattern, while GB3 and GB4 use a full over 2-over pattern. GB1 and GB2 create raised dot patterns through variations in the warp weave, while GB3 and GB4 form the fabric skeleton through a two-needle warp weave. The calculated warp head count is: GB1 and GB2 282×8, GB3 and GB4 564×8. The temperature at the warping site is 25±1℃ and the relative humidity is 65±5%. The relatively high and stable temperature and humidity help stabilize the twist of the polyester yarn and make the surface soft, preventing the yarn from getting tangled and which is beneficial to the production of warp-knitted products.

[0034] 3) Weaving: Weaving is carried out using a single-needle bed high-speed Tricot warp knitting machine. Model: High-speed Trik warp knitting machine HKS4 Model number: 24 pins Width: 186 inches Warp knitting structure and yarn threading method: GB1 comb: 1-0 / 7-8 / 1-0 / 7-8 / 1-0 / 2-3 / 7-8 / 3-2 / / Two through, two open; GB2: Comb: 1-0 / 7-8 / 1-0 / 7-8 / 1-0 / 2-3 / 7-8 / 3-2 / / Two gaps and two threads; GB3 comb: 1-0 / 1-2 / / Full thread; GB4 comb: 1-2 / 1-0 / / Full thread; raw material: GB1 comb: 100D / 48f light blue semi-dull polyester FDY GB2 comb: 100D / 48f, 25% elongation, dark blue elastic polyester PET GB3 comb: 50D / 24f semi-dull polyester FDY, GB4 comb: 30D spandex with an elongation of 65.0%.

[0035] Input the weaving pattern, warp feed amount, and draft density into the computer display screen of the control cabinet, save the data, load the machine file, and then start the machine. After weaving, the raw fabric is obtained, weighed, bagged, and stored in the warehouse. 4) Finishing: brushing, trimming, shaping, etc.

[0036] 5) Testing and packaging.

[0037] Through the above processes, a warp-knitted jacquard double-sided fleece with a raised dot pattern can be obtained. The first and second combs are woven using light blue matte polyester and dark blue glossy polyester as raw materials, creating a raised dot jacquard effect. The third comb uses ordinary semi-dull polyester, which, without compromising the fabric's color, creates a ground structure. The fourth comb incorporates spandex with good stretchability, giving the fabric excellent stretch and softness, making it suitable for sofas, chairs, and other similar applications. Different raised effects can be achieved by changing the color and luster of the fabric.

[0038] Comparative Example 1 A knitted jacquard fleece fabric prepared using a traditional embossing process is composed of raw materials with the same linear density as in Example 1: 41.0% 150D / 96f polyester FDY, 41.0% 150D / 96f semi-dull polyester FDY, 13.4% 40D / 24f semi-dull polyester FDY, and 4.6% 40D spandex with an elongation of 65.0%. The specific process of its preparation is as follows: including the selection and matching of the structure of each comb, preparation process, warping, weaving, setting, brushing, ironing, and finishing after embossing.

[0039] 1) Material selection: 150D / 96f polyester FDY, 150D / 96f semi-dull polyester FDY, 40D / 24f semi-dull polyester FDY, and 40D spandex with an elongation of 65.0% are selected as raw materials; 2) Warping: Based on a width of 150cm and a horizontal density of 15.0 wpc, GB1 warp stitches are 2 stitches and 2 gaps, GB2 warp stitches are 2 gaps and 2 stitches, and GB3 and GB4 warp stitches are full stitches; GB1 and GB2 form a multi-needle variation warp plain weave, and GB3 and GB4 form a two-needle warp plain weave. The calculated number of warp head lines is: GB1 and GB2 282×8, GB3 and GB4 564×8; The temperature at the warping site is 25±1℃ and the relative humidity is 65±5%. The higher and more stable temperature and humidity help stabilize the twist of the polyester yarn and make the surface soft, preventing the yarn from getting tangled and which is beneficial to the production of warp-knitted products. 3) Weaving: Weaving is carried out using a single-needle bed high-speed Tricot warp knitting machine. Model: High-speed Trik warp knitting machine HKS4 Model number: 28 pins Width: 186 inches Warp knitting structure and yarn threading method: GB1 comb: 1-0 / 4-5 / 1-0 / 4-5 / 1-0 / 2-3 / 4-5 / 3-2 / / Two through, two open; GB2: Comb: 1-0 / 4-5 / 1-0 / 4-5 / 1-0 / 2-3 / 4-5 / 3-2 / / Two gaps and two threads; GB3 comb: 1-0 / 1-2 / / Full thread; GB4 comb: 1-2 / 1-0 / / Full thread; raw material: GB1 comb: 150D / 96f polyester FDY, GB2 comb: 150D / 96f semi-dull polyester FDY, GB3 comb: 40D / 24f semi-dull polyester FDY, GB4 comb: 40D spandex with an elongation of 65.0%.

[0040] Input the organization of the yarn padding, warp feed, and draft density into the computer display screen of the control cabinet, save it, load the machine file, and then start the machine; after weaving, the yarn is split, shaped, brushed, and ironed.

[0041] 4) Embossing finishing: Emboss the dyed and finished fabric, set the embossing temperature and embossing time to 280℃ and 5 seconds respectively, and then press out the concave and convex dot texture effect through the embossing mold, followed by ironing and other processes. 5) Testing and packaging.

[0042] Traditional knitted jacquard fleece fabrics obtained through the above processes have a textured pattern formed after embossing. According to the test standard GB / T 3921-2008 for the color fastness to washing of textiles, the pattern will become blurred and some areas will lose their texture after 20-30 washes, resulting in poor texture durability. Furthermore, the embossing process adds a dyeing and finishing step, increasing the amount of dye used and consequently raising production costs.

[0043] The embodiments provided above are not intended to limit the scope of the invention, nor are the described steps intended to limit the order of execution. Any obvious modifications made to the invention by those skilled in the art based on existing common knowledge also fall within the scope of protection defined by the claims.

Claims

1. A production process for warp-knitted jacquard double-sided fleece fabric with raised dot pattern, characterized in that, The process is carried out on a single-needle bed warp knitting machine equipped with 4 guide bars. Among them, GB1 and GB2 have the same backing yarn pattern, using yarns with different luster and color for symmetrical backing yarn knitting. The continuous raised and recessed dot jacquard pattern is formed by designing the number of warp passes and the number of open passes of the two guide bars. GB3 and GB4 are knitted into a stable base fabric. GB3 is fully knitted with polyester in the middle, and GB4 is fully knitted with spandex to give the fabric elasticity.

2. The process according to claim 1, characterized in that, The process steps are as follows: 1) Material selection: Polyester and spandex are selected as raw materials; 2) Warping: The single-needle bed four-comb tricot warp knitting machine uses GB3 and GB4 to knit a stable base fabric. GB3 is fully threaded with polyester to knit the middle ground structure, and GB4 is fully threaded with spandex to give the structure elasticity. GB1 and GB2 use yarns with different luster and color to knit symmetrically with padding yarns. The continuous pattern is formed by designing the number of warp threads and the number of loops of the two guide bars. The total number of warp threads of GB1 and GB2 is m + n = the number of stitches of the two identical structure, where n is the number of warp threads and m is the number of loops. The number of warp heads of each guide bar is calculated according to the width and machine size. 3) Weaving: Single-needle bed knitting machine is used for weaving; during weaving, GB1 and GB2 knit multi-needle variation plain weave to form patterned designs, and long extension lines are exposed on the reverse side of the fabric; GB3 and GB4 use two-needle plain weave to form the base fabric. 4) Post-treatment: brushing and trimming; 5) Testing and packaging.

3. The process according to claim 1, characterized in that, Step 2) GB1 and GB2 are made of polyester with different colors and luster, GB3 is made of ordinary polyester, and GB4 is made of spandex with elasticity and softness.

4. The process according to claim 2, characterized in that, The polyester is a light red matte polyester and a dark red bright cationic polyester; the elongation of the polyester is 40%~70%.

5. The process according to claim 1, characterized in that, GB1 and GB2 use semi-dull polyester and elastic polyester PET, GB3 uses ordinary polyester, and GB4 uses elastic and soft spandex.

6. The process according to claim 1, characterized in that, Step 2) The guide bars GB3 and GB4 of the single needle bed warp knitting machine are fully threaded. The total number of threaded needles m+n of GB1 and GB2 is equal to the number of stitches in the two identical weave structures, where the number of threaded needles m+n>2.

7. The process according to claim 1, characterized in that, Step 3) When the single-needle bed Trico warp knitting machine is weaving, the selection and matching of the guide bar structure and the yarn threading method are as follows: GB1: 1-0 / 4-5 / 1-0 / 4-5 / 1-0 / 2-3 / 4-5 / 3-2 / / m through n; GB2: 1-0 / 4-5 / 1-0 / 4-5 / 1-0 / 2-3 / 4-5 / 3-2 / / m empty n through; GB3: 1-0 / 1-2 / / Full penetration; GB4: 1-2 / 1-0 / / Full penetration; Among them, the total number of needles threaded through m+n = the number of tissue loops for two identical tissue structures; the number of needles threaded without threading through m>(n+m) / 2.

8. The process according to claim 1, characterized in that, In step (3), the selection of each guide bar structure and the yarn threading method during weaving on the single-needle bed tricot warp knitting machine are as follows: GB1: 1-0 / 7-8 / 1-0 / 7-8 / 1-0 / 2-3 / 7-8 / 3-2 / / m through n; GB2: 1-0 / 7-8 / 1-0 / 7-8 / 1-0 / 2-3 / 7-8 / 3-2 / / m void n penetration; GB3: 1-0 / 1-2 / / Full penetration; GB4: 1-2 / 1-0 / / Full penetration; Among them, the total number of needles threaded through m+n = the number of tissue loops for two identical tissue structures; the number of needles threaded without threading through m>(n+m) / 2.

9. Warp-knitted jacquard double-sided fleece fabric with raised dot pattern obtained by the process described in any one of claims 1 to 8.

10. The application of the warp-knitted jacquard double-sided fleece fabric of claim 9 in the preparation of sofa covers and seat cushions.

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