A kind of blade needle, anti-pilling hooking cutting pile double cloth and its weaving method

Abstract

A kind of cutter needle, anti-pilling hooking pile cutting double cloth and weaving method thereof, the double cloth includes flat surface layer and cutting pile surface layer, the flat surface layer is formed by face yarn complete and compact plane loop, the cutting pile surface layer includes wool yarn, and the wool yarn includes cutting pile segment and wool yarn root portion.In the corresponding loop formation position of wool yarn root portion, the interlaced loop of plane loop, cutting pile surface layer and wool yarn root portion form fixed yarn point in overcasting, so that wool yarn root portion is limited between plane loop and interlaced loop.In manufacturing, plane loop and interlaced loop are formed by the knitting needle of weft knitting double circular machine, and cutting is carried out after forming cutting loop arc by cutter needle hooking wool yarn.Forming cutter needle includes first cutting surface and second cutting surface, first cutting surface is used to cut wool yarn in the process of rising, and second cutting surface is used to cut wool yarn again in the process of falling.Thus, one side of double cloth can be made flat and anti-pilling hooking, the other side forms stable cutting pile segment, and the situation of shedding and falling off is reduced.

Description

Technical Field

[0001] This application relates to the textile field, specifically to a knife needle, an anti-pilling and anti-snagging double-sided fabric, and a weaving method thereof. Background Technology

[0002] Cut pile double-sided fabric is commonly used in sportswear, sweatshirts, jackets, loungewear, and other products. One side needs to have a relatively flat fabric surface to meet the requirements of appearance, abrasion resistance, and snag resistance, while the other side needs to have a pile structure to improve fluffiness, warmth, and wearing comfort.

[0003] Existing fleece-like knitted fabrics are typically achieved through terry weaves, brushed fleece, napping treatments, or composite processes. When using terry weaves, exposed loops are prone to appear on the fabric surface. These exposed loops are easily pulled out during wear, washing, or contact with zippers, Velcro, or sharp objects, leading to problems such as snagging and pilling. When using ordinary double-sided brushed fleece, the pile height is limited. To create longer pile, it is often necessary to increase yarn usage or improve finishing strength, which can easily lead to increased fabric weight and poor pile stability. Using composite or complex cut pile processes requires significant equipment investment and is difficult to control, making low-cost production on conventional weft-knitted double-sided circular knitting machines challenging.

[0004] In addition, in cut pile fabrics, the yarn is cut to form pile, but if the roots of the yarn are not properly secured, it is easy for it to become loose, fall out, or show the base material during subsequent dyeing, washing, stretching, or wear friction. Summary of the Invention

[0005] In view of the above problems, this application provides a cutting needle, an anti-pilling and anti-snagging double-sided fabric and a weaving method thereof, which can improve the stability of the cut yarn and make the cut yarn less likely to fall apart or shed.

[0006] To achieve the above objectives, the inventors provide an anti-pilling, snagging, cut-pile double-sided fabric, comprising a flat surface layer and a cut-pile surface layer. The flat surface layer is formed by continuous and tight planar loops from yarn. The cut-pile surface layer comprises yarn, including cut-pile segments located outside the cut-pile surface layer and yarn roots connected to the cut-pile segments. The cut-pile surface layer has looping positions corresponding to the yarn roots, where the planar loops, the interlaced loops of the cut-pile surface layer, and the yarn roots form a yarn-fixing point in a cover-knit manner, confining the yarn roots between the planar loops and the interlaced loops.

[0007] Through the above implementation method, the smooth surface layer is not formed by exposed loops, but by complete and tight planar loops formed by the yarn. Therefore, the outer surface is smoother, and external objects are less likely to snag the loops or loose yarns, which helps reduce the risk of snagging and pilling. In the cut pile layer, the yarn forms cut pile segments on the outer side, giving the other side of the fabric a velvety and fluffy feel. The yarn roots are not solely connected by the intermediate connecting layer, but are woven together with the planar loops and interlaced loops at the corresponding loop formation position to form a yarn-fixing point, thus pressing and confining the yarn roots between the two types of loops. In this way, even if the outer part of the yarn is cut into cut pile segments, the yarn roots can remain stable and are not easily pulled out of the cut pile layer.

[0008] The embodiment also provides a method for weaving an anti-pilling, snagging, cut-pile double-sided fabric. The weaving method includes: configuring knitting needles and cutting needles on a weft knitting double-sided circular knitting machine; controlling the knitting needles to hook the yarn in the looping area of ​​the needle plate and form planar loops; feeding wool yarn into the cutting needles and controlling the cutting needles to hook the wool yarn and stretch it to form a cut-pile arc; controlling the knitting needles to hook the wool yarn in the looping area of ​​the needle cylinder and form interlacing loops; controlling the planar loops, the interlacing loops, and the root of the wool yarn to form a yarn-fixing point in a cover knitting manner at the looping position corresponding to the wool yarn, and restricting the root of the wool yarn between the planar loops and the interlacing loops; controlling the cutting needles to cut the cut-pile arc, so that the wool yarn forms a cut-pile segment connected to the root of the wool yarn.

[0009] Through the above implementation method, the flat surface layer, the cut pile surface layer, and the yarn fixing points can be formed using a weft knitting double-sided circular knitting machine. The face yarn is continuously looped on one side to form a flat surface layer, and the pile yarn is hooked by the cutting needle to form a loop arc to be cut. After the loop arc is cut, it forms a cut pile segment. Because a cover weaving fixing point is formed at the loop position corresponding to the root of the pile before cutting, the root of the pile yarn is already restricted between the flat loop and the interlacing loop. Therefore, the pile yarn is not easy to scatter or fall off after cutting, which can take into account both the long pile effect and the anti-snagging effect of the flat surface.

[0010] The embodiment also provides a cutting needle, which is applied to the cut pile segment of forming an anti-pilling, snagging, cut pile double-sided fabric, or to a weaving method for such fabric. The cutting needle includes a hook portion, a needle body, a first cutting surface, and a second cutting surface. The hook portion is located at one end of the needle body and is used to hook the yarn and stretch it to form a loop to be cut during the needle's rising and falling motion. The first cutting surface is connected to the needle body and located below the hook portion. The first cutting surface is situated on the path traversed by the loop to be cut as the needle rises, and is used to perform a first cut on the loop during the needle's rising motion. The second cutting surface is connected to the needle body and is positioned opposite to the first cutting surface. The second cutting surface is situated on the path traversed by the loop to be cut as the needle falls, and is used to perform a second cut on the loop during the needle's falling motion.

[0011] Through the above implementation method, the cutting needle can cut the yarn twice in one lifting cycle. The first cutting surface cuts the arc to be cut during the needle's ascent. If the yarn is not completely cut due to insufficient force or local slack, the uncut yarn can enter the cutting path of the second cutting surface during the needle's descent and be cut again by the second cutting surface. This can improve the integrity of the yarn cut and reduce problems such as uncut yarn and uneven pile.

[0012] The above description of the invention is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0013] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of the present invention and other related contents, and should not be considered as limitations on this application.

[0014] In the accompanying drawings of the instruction manual:

[0015] Figure 1 This is a diagram illustrating the weaving of the anti-pilling, snagging, and velour-cut double-sided fabric in the embodiments of this application.

[0016] Figure 2 This is a schematic diagram illustrating the function of the cutting needle in the anti-pilling, snagging, and velour-cutting double-sided fabric of this application embodiment;

[0017] Figure 3 This is a schematic diagram of the structure of the knife needle in the embodiments of this application;

[0018] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0019] The reference numerals used in the above figures are explained as follows:

[0020] 1. Cutting the pile segment; 2. Fixing the yarn point; 3. Planar loop; 4. Cutting needle; 41. Needle hook; 42. Needle body; 43. First cutting surface; 44. Second cutting surface; 45. Needle pin. Detailed Implementation

[0021] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0022] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0023] Example 1:

[0024] Please refer to Figure 1 The anti-pilling, snagging, and cut-pile double-sided fabric provided in this application includes a flat surface layer and a cut-pile surface layer. The flat surface layer forms a relatively flat side of the fabric, while the cut-pile surface layer forms a side with a pile effect. The flat surface layer is formed by complete and tight planar loops 3 from yarn, with the planar loops 3 continuously looped on one side of the flat surface layer, so that the surface of this side is mainly composed of yarn loops, rather than loops formed by exposed yarn. Through this structure, the surface of the flat surface layer is relatively flat, and external objects are less likely to snag loose loops or exposed yarns, thereby helping to reduce the risk of snagging and pilling.

[0025] The cut pile surface layer comprises yarn, which includes cut pile segments 1 located on the outer side of the cut pile surface layer and yarn roots connected to the cut pile segments 1. The cut pile segments 1 are formed by cutting the yarn and extend outwards from the cut pile surface layer, giving it a fluffy, soft, and warm feel. The yarn roots are located inside the fabric structure and serve to maintain the connection between the cut pile segments 1 and the main fabric body.

[0026] In the cut pile layer, there are looping positions corresponding to the yarn root. At these looping positions, the planar loops 3, the interlacing loops of the cut pile layer, and the yarn root form a yarn-fixing point 2 in a cover-weave manner. The cover-weave manner can be understood as the planar loops 3, the interlacing loops, and the yarn root overlapping, crossing, or pressing against each other at the same looping position, so that the yarn root does not exist alone as a floating yarn, but is jointly constrained by the planar loops 3 and the interlacing loops. Specifically, the planar loops 3 cover the side of the yarn root closest to the flat surface layer, the interlacing loops are located on the side of the yarn root closest to the cut pile layer, and the yarn root is constrained between the planar loops 3 and the interlacing loops.

[0027] Through the aforementioned yarn-fixing points 2, after the yarn is cut into cut pile segments 1, the root of the yarn can still be stably fixed in the fabric structure, making it less likely to come off from the cut pile surface layer during dyeing, washing, stretching, or wearing friction. Unlike the method of connecting the two fabrics by relying solely on a common intermediate connecting layer, the yarn-fixing points 2 of this application are directly formed at the loop position corresponding to the root of the yarn, making the fixation of the yarn root more targeted. This not only forms longer pile on the cut pile surface layer but also reduces problems such as shedding, fraying, and exposure of the underlying fabric.

[0028] In one alternative embodiment, the planar loop 3 is a continuous loop of yarn, covering the side of the yarn root near the smooth surface layer. The outer surface of the smooth surface layer is mainly composed of continuous loops formed by the yarn, and the yarn is controlled to avoid the outer surface of the smooth surface layer. As a result, exposed loops are less likely to form on the smooth surface layer, enabling the fabric to maintain good smoothness and anti-snagging properties.

[0029] In one alternative embodiment, the interlaced loops are formed by the combined participation of ground yarn and pile yarn in the cut pile layer. The ground yarn forms the base structure of the cut pile layer, while the pile yarn forms the cut pile segments 1 and participates in securing the pile yarn roots. The interlaced loops are located on the side of the pile yarn roots closer to the cut pile layer and, together with the planar loops 3, clamp the pile yarn roots. By involving the pile yarn in the loop formation, the pile yarn roots can bond with the base structure of the cut pile layer, rather than simply existing as exposed yarns to be cut later, thus improving the stability of the pile yarn in the fabric.

[0030] In one alternative embodiment, multiple yarn-fixing points 2 are spaced apart along the weaving direction of the cut pile layer, forming a cut pile area between adjacent yarn-fixing points 2 for exposing the yarn. The yarn in the cut pile area is stretched to form a loop to be cut, and this loop is then cut to form a cut pile segment 1. Through the interlacing of the yarn-fixing points 2 and the cut pile area, the yarn can be stably fixed at multiple locations, and the yarn between adjacent yarn-fixing points 2 can have sufficient exposed length, thus forming a cut pile segment 1 with a certain height.

[0031] Example 2:

[0032] Please refer to Figure 2 This application also provides a method for weaving an anti-pilling, snagging, cut-pile double-sided fabric. This weaving method can be performed on a weft-knitting double-sided circular knitting machine. The weft-knitting double-sided circular knitting machine is equipped with knitting needles and cutting needles 4. The knitting needles are used to participate in the knitting of the flat surface layer and the cut-pile surface layer, and the cutting needles 4 are used to snag the yarn and cut the yarn.

[0033] During manufacturing, the yarn is knitted using needles to form a flat surface layer on one side of the double-sided fabric, consisting of complete and tightly packed planar loops 3. Specifically, the needles of the weft-knitting double-sided circular knitting machine can be controlled to hook the yarn and complete looping, bending, and unhooking, so that the yarn continuously forms loops on one side of the double-sided fabric. After the yarn is continuously formed into loops, a flat surface layer is formed, and the outer surface of the flat surface layer is mainly composed of planar loops 3 formed by the yarn.

[0034] During the formation of the smooth surface layer, the yarn is controlled to avoid the outer surface of the smooth surface layer. Instead of forming loose loops on the outer side of the smooth surface layer, the yarn is guided to the cut pile side to participate in the formation of the cut pile structure and yarn fixing point 2. This ensures the smooth surface layer maintains good flatness and reduces the possibility of it being snagged by external objects.

[0035] Subsequently, yarn is fed into the cutting needle 4, causing the needle 4 to hook the yarn and stretch it to form a loop to be cut. The length of the loop to be cut can be adjusted by the lifting height of the cutting needle 4, the feeding position of the yarn, and the loop-forming triangle of the weft knitting double-sided circular knitting machine. The longer the loop to be cut, the longer the cut pile segment 1 formed after cutting is usually; when the loop to be cut is shorter, the cut pile segment 1 formed after cutting is relatively shorter.

[0036] At the corresponding looping position of the yarn, the planar loop 3, the interlacing loop, and the yarn root are controlled to form a yarn-fixing point 2 in a cover-weave manner, thus confining the yarn root between the planar loop 3 and the interlacing loop. This process can be completed before the yarn is cut, ensuring that the yarn root is fixed first, and then the exposed part of the yarn is cut. Since the yarn root is already held by the planar loop 3 and the interlacing loop, the cut pile segment 1 formed after cutting is not easily detached from the cut pile surface layer.

[0037] After forming the yarn fixing point 2, the cutting needle 4 is controlled to cut the arc of the loop to be cut, and a cut pile segment 1 is formed on the other side of the double-sided fabric. After the above process, a complete and compact flat surface layer is formed on one side of the double-sided fabric, and a cut pile surface layer with the cut pile segment 1 is formed on the other side. The flat surface layer is used to improve anti-snagging and anti-pilling properties, the cut pile surface layer is used to provide a velvety and fluffy hand feel, and the yarn fixing point 2 is used to improve the fixation stability of the yarn root.

[0038] In one alternative approach, the materials of the face yarn and the wool yarn can be selected based on the intended use of the fabric. For example, the face yarn can be made of polyester, nylon, cotton, viscose, or a composite yarn thereof to give the smooth surface layer good smoothness, abrasion resistance, or skin-friendliness; the wool yarn can be made of polyester, nylon, acrylic, viscose, or a composite yarn thereof to form soft, fluffy cut pile segments after cutting. In actual production, the yarn thickness, elasticity, and fiber type of the face yarn and wool yarn can also be adjusted according to the required hand feel, weight, bulkiness, and dyeing and finishing requirements of the product.

[0039] In one alternative configuration, the weft-knitting double-sided circular knitting machine can employ a needle configuration consisting of disc needles, cylinder needles, and cutter needles 4. Disc needles are primarily used to hook the face yarn and form flat loops 3 for the smooth surface layer; cylinder needles are used to hook the ground yarn and pile yarn to form interlaced loops for the cut pile layer; cutter needles 4 are used to hook the pile yarn and stretch it to form the cut loop arc. The cutter needles 4 and the knitting needles can be arranged according to a preset pattern, such as alternating cutter needles 4 with cylinder needles, or placing cutter needles 4 between several knitting needles, so that the pile yarn can form the cut loop arc at a predetermined position and form a yarn-fixing point 2 at the corresponding loop-forming position. The above arrangement is not limited to a fixed needle ratio and can be adjusted according to the fabric structure, pile density, and the spacing of the yarn-fixing points 2.

[0040] In one alternative configuration, the loop-forming cams of the weft knitting double-sided circular knitting machine can independently control the lifting and lowering trajectories of the disc needles, cylinder needles, and cutter needle 4. Guided by the loop-forming cams, the disc needles complete the looping, bending, and unlooping of the face yarn, continuously forming loops to create a smooth surface layer. Guided by the corresponding cams, the cylinder needles hook the ground yarn and pile yarn, forming interlaced loops on the cut pile layer. The cutter needle 4, through its pin 45, engages with the loop-forming cams to hook the pile yarn at a predetermined height and stretch it to form the loop to be cut. By adjusting the lifting height of the corresponding cam of the cutter needle 4, the length of the loop to be cut can be adjusted, thereby adjusting the height of the cut pile section 1. The needle bar, equipped with pin 45, can work with the cams to achieve different pile lengths; the longer the pile yarn is stretched by the cutter needle 4, the longer the pile formed after cutting.

[0041] Specifically, the cams of the weft knitting double-sided circular knitting machine can be arranged in a multi-path cycle, so that the knitting needles and cutter needles 4 can perform loop forming, loop gathering, floating yarn, or yarn cutting actions in different knitting paths. Specifically, the cams can be set up in three-path cycles, each cycle including a first path, a second path, and a third path. The first path can be configured to allow the cutter needle 4 or the corresponding knitting needle to rise and receive the yarn. The second path can be configured to allow the knitting needle to participate in forming planar loops 3 or interlacing loops. The third path can be configured to allow some knitting needles not to participate in loop forming or only to perform floating yarn coordination. Through the above three-path cycle arrangement, the yarn can be hooked and stretched by the cutter needle 4 in a predetermined path to form the loop to be cut, while the face yarn and ground yarn form planar loops 3 and interlacing loops in adjacent paths, thereby forming a yarn fixing point 2 at the loop forming position corresponding to the yarn root.

[0042] Furthermore, in the triangular arrangement, the triangular tracks corresponding to the cutting needle 4, the needle plate needles, and the cylinder needles can be staggered and coordinated. The cutting needle 4 is guided upwards in the first path so that the hook part 41 hooks the yarn and stretches it to form the loop to be cut; the needles complete the looping of the face yarn, ground yarn, and yarn in the second or adjacent path, so that the planar loop 3, the interlacing loop, and the yarn root form cover-type yarn fixing points 2 at the corresponding looping positions; some needles in the third path may not hook the yarn or may perform float work to form a cutting area for the exposed yarn between adjacent yarn fixing points 2. In this way, the triangular arrangement does not control the rise and fall of a single needle individually, but rather, through multi-path cyclical coordination, the hooking, fixing, and cutting actions of the yarn are interconnected.

[0043] In actual production, the triangular arrangement can be repeated in three rows. For example, different needle rise, loop, or non-loop tracks can be set in the first, second, and third rows, so that the cutting needle 4, the cylinder needles, and the dial needles move according to a predetermined sequence. This triangular arrangement can be adjusted according to the pile density, the spacing of the yarn fixing points 2, the length of the cut pile area, and the tightness of the flat surface layer, and is not limited to a fixed three-row symbol or a fixed needle position ratio. By adjusting the triangular arrangement, the timing of the cutting needle 4 picking up the yarn, the timing of the needles forming the yarn fixing points 2, and the position where the yarn is cut can be changed, so that the fabric can obtain a more stable cut pile section 1 while maintaining a flat surface layer and resisting snagging and pilling.

[0044] In one embodiment, the triangular arrangement can be set cyclically according to three rows of needle positions and three triangular trajectories, so that the first needle position, the second needle position and the third needle position correspond to the rising needle, the looping or the non-looping state in different loops respectively; through this staggered arrangement, some needle positions can first form the yarn hooking and fixing action, and some needle positions can then form the cutting area, so that the fixing point 2 and the cutting area are distributed at intervals along the knitting direction.

[0045] Example 3:

[0046] Please refer to Figure 3 and Figure 4 This application also provides a cutting needle 4. This cutting needle 4 can be installed on a weft knitting double-sided circular knitting machine, used to hook the yarn during the weaving process, stretch the yarn to form a loop to be cut, and then cut the loop to be cut through the cutting surface to form the cut pile segment 1. This cutting needle 4 can be used to form the cut pile segment 1 of the anti-pilling, snagging, cut pile double-sided fabric in Embodiment 1, and can also be used to perform the cutting process in the weaving method of the anti-pilling, snagging, cut pile double-sided fabric in Embodiment 2.

[0047] The cutting needle 4 includes a needle body 42, a needle hook 41, a first cutting surface 43, and a second cutting surface 44. The needle body 42 is used to be installed in the needle groove of the weft knitting double-sided circular knitting machine and moves up and down with the looping triangle of the weft knitting double-sided circular knitting machine. The needle hook 41 is located at one end of the needle body 42 and is used to receive the yarn during the yarn padding process, so that the yarn falls into the needle hook 41. After the yarn falls into the needle hook 41, it is stretched with the up and down movement of the cutting needle 4 to form a loop arc to be cut. The loop arc to be cut can be understood as a loop-shaped or arc-shaped yarn segment formed by the yarn before it is cut. This loop arc to be cut is subsequently cut to form the cut pile segment 1.

[0048] During the weaving process, the yarn is preferably controlled at the position of the needle hook 41. That is, when the yarn is laid, the yarn first enters the needle hook 41 and is received by the needle hook 41, rather than directly contacting the cutting surface at the beginning. The advantage of this setting is that the yarn can be stably hooked by the cutting needle 4 and stretched into a loop first, and then enter the cutting path when the cutting needle 4 rises and falls to the corresponding position. This helps to avoid the yarn from contacting the cutting surface too early, which would lead to loss of control of the yarn position, uneven pile length, or unstable cutting.

[0049] The first cutting surface 43 is connected to the needle body 42 and positioned below the needle hook portion 41. The first cutting surface 43 is located on the path that the arc to be cut traverses as the cutting needle 4 rises. When the cutting needle 4 rises under the action of the looping triangle, the needle hook portion 41 drives the yarn upward, and the arc to be cut is gradually stretched and tightened. During this process, the arc to be cut enters the cutting position of the first cutting surface 43, and the first cutting surface 43 performs the first cut on the arc to be cut.

[0050] The first cutting surface 43 can be set as a blade surface inclined relative to the needle body 42. The angle between the first cutting surface 43 and the needle body 42 can be between 22° and 25°. Within this angle range, the first cutting surface 43 can both cut into the loop to be cut and prevent the yarn from being obstructed too early. If the angle between the first cutting surface 43 and the needle body 42 is too small, the yarn is prone to slippage when passing through the first cutting surface 43, and the cutting effect of the first cutting surface 43 on the yarn is insufficient, resulting in insufficient first cut. If the angle between the first cutting surface 43 and the needle body 42 is too large, the yarn is prone to strong obstruction when entering the cutting path, which may affect the smoothness of the rise and fall of the needle 4 and the stability of the yarn loop. Therefore, setting the angle between the first cutting surface 43 and the needle body 42 to 22° to 25° can balance yarn introduction, tension, and cutting effect.

[0051] The second cutting surface 44 is connected to the needle body 42 and is positioned opposite to the first cutting surface 43. The second cutting surface 44 is located on the path traversed by the arc to be cut as the cutting needle 4 descends. The second cutting surface 44 can be configured as a cutting surface that is hooked back to the needle body 42. The hooked shape here can be understood as: the second cutting surface 44 has a hooked or reverse hooking structure relative to the needle body 42, so that it can intercept, hook, and cut the yarn that has not been completely cut by the first cutting surface 43 when the cutting needle 4 descends.

[0052] In the actual cutting process, although the first cutting surface 43 can cut the yarn for the first time when the needle 4 rises, the yarn may become loose or insufficiently tensioned locally due to the limited force points on the yarn when the needle 4 rises, resulting in some yarn not being completely cut by the first cutting surface 43. To solve this problem, this application provides a second cutting surface 44 on the needle 4. When the needle 4 rises to a preset height, the yarn that has not been cut by the first cutting surface 43 will enter the position corresponding to the second cutting surface 44 as the needle 4 moves. Subsequently, the needle 4 descends under the action of the looping triangle, and the second cutting surface 44 cuts the uncut yarn a second time during the descent, thereby ensuring that the yarn can be completely cut and form the cut pile segment 1.

[0053] When the second cutting surface 44 adopts a hook-shaped structure, the uncut yarn is less likely to slip off from the second cutting surface 44 during the descent of the cutting needle 4, but can be brought into the cutting position by the hook-shaped structure. In this way, the second cutting surface 44 not only serves as a cutting edge, but also provides a certain hooking effect on the yarn during the descent, making the second cut more stable. Through the cooperation of the first cutting surface 43 and the second cutting surface 44, the cutting needle 4 can create two cutting opportunities in one lifting cycle, which can reduce problems such as uncut yarn, tangled threads, and uneven pile.

[0054] The cutting needle 4 may also be equipped with a pin 45. The pin 45 is used to cooperate with the loop-forming triangle of the weft knitting double-sided circular knitting machine. When the weft knitting double-sided circular knitting machine is running, the pin 45 moves along the trajectory formed by the loop-forming triangle, thereby driving the needle body 42 and the needle hook part 41 to complete the rising and falling. The trajectory of the loop-forming triangle determines the rising and falling height and the timing of the movement of the cutting needle 4. Therefore, by changing the trajectory of the loop-forming triangle or adjusting the cooperation relationship between the pin 45 and the loop-forming triangle, the stretching length of the needle hook part 41 after hooking the yarn can be controlled.

[0055] The yarn is stretched by the hook part 41 to form a cut loop, the length of which is related to the lifting height of the cutting needle 4. Generally, the greater the lifting height of the cutting needle 4, the longer the stretching distance of the hook part 41 on the yarn, the longer the cut loop, and the longer the cut pile segment 1. Conversely, the smaller the lifting height of the cutting needle 4, the shorter the cut loop, and the shorter the cut pile segment 1. Therefore, the cooperation between the needle 45 and the loop-forming triangle not only drives the cutting needle 4 to complete the yarn hooking and cutting actions, but also controls the length of the cut pile segment 1, enabling the same type of equipment to form different pile heights according to different product requirements.

[0056] In one specific manufacturing process, the yarn is first inserted into the hook portion 41. At this point, the yarn is not yet cut, but is hooked by the hook portion 41 and forms a loop. As the cutting needle 4 continues to rise, the loop is lengthened, and the yarn gradually approaches the first cutting surface 43. When the loop reaches the cutting path of the first cutting surface 43, the first cutting surface 43 performs the first cut on the yarn. If the yarn is completely cut by the first cut, a cut pile segment 1 is formed. If the yarn is not completely cut due to slack or insufficient force, the uncut yarn enters the area below or corresponding to the second cutting surface 44 after the cutting needle 4 rises to a high position. The cutting needle 4 then descends, and the second cutting surface 44 performs a second cut on the uncut yarn during the descent, so that the yarn is finally completely cut.

[0057] Through the aforementioned needle 4 structure, this application enables the direct stretching and cutting of yarn on a weft knitting circular knitting machine, eliminating the need for a separate, complex napping process after weaving. The first cutting surface 43 is used for the initial cut during the rising process, the second cutting surface 44 is used for the supplementary cut during the falling process, the hook part 41 is used to stably hook and stretch the yarn, and the needle 45 and the looping triangle are used to control the lifting height and yarn length of the needle 4. The above structures work together to ensure that the needle 4 not only forms the cut pile segment 1 but also improves the cutting integrity and makes the length of the cut pile segment 1 controllable.

[0058] In summary, this application sets up a flat surface layer and a cut pile layer on the double-sided fabric, allowing each side to perform different functions. The flat surface layer consists of complete and tight planar loops formed by the yarn, preventing the yarn from forming loose loops on the outside. This results in a smoother fabric surface, making it less prone to snagging the yarns and reducing the risk of snagging and pilling during wear, friction, and washing. In the cut pile layer, the yarn is hooked and stretched by a cutting needle to form a cut loop arc. After cutting, it forms cut pile segments, giving the other side of the fabric a better sense of fluffiness, softness, and warmth, thus balancing a smooth appearance with a velvety feel.

[0059] Meanwhile, this application does not simply rely on an intermediate connecting layer to fix the two-sided structure. Instead, at the looping position corresponding to the yarn root, the planar loops, the interlacing loops of the cut pile layer, and the yarn root form yarn-fixing points in a cover-weave manner. The yarn root is confined between the planar loops and the interlacing loops. After the exposed part of the yarn is cut into cut pile segments, the yarn root can still be clamped and pressed by the loops, making it difficult to fall out of the fabric structure, thereby reducing problems such as shedding, unraveling, and exposure of the base layer. Multiple yarn-fixing points are distributed at intervals along the weaving direction, which can also reserve cut pile areas for exposed yarn and pile formation while ensuring stable fixation of the yarn, making the pile height and distribution more stable.

[0060] Furthermore, the cutting needle of this application is equipped with a first cutting surface and a second cutting surface. The first cutting surface performs the first cut on the arc to be cut during the needle's ascent, and the second cutting surface performs the second cut on the arc to be cut during the needle's descent. In particular, when the second cutting surface is hooked to the needle body, it can hook onto any yarn that has not been completely cut during the descent and cut it again, reducing problems such as uncut yarn, tangled threads, or uneven pile. After the needle and the loop-forming triangle are combined, the lifting height of the needle hook can also be controlled, thereby adjusting the length of the arc to be cut and making the height of the cut pile section controllable. Thus, this application can achieve the production of double-sided fabric with anti-pilling and anti-snagging properties on one side and stable pile cutting and napping on the other side based on a weft knitting double-sided circular knitting machine, and is conducive to reducing the difficulty of equipment modification and improving product differentiation.

[0061] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A double-sided fabric resistant to pilling, snagging, and velour, characterized in that, Includes a smooth surface layer and a cut-pile surface layer; The smoothing layer includes planar loops formed from yarn; The cut pile surface layer includes yarn, and the yarn includes cut pile segments located on the outside of the cut pile surface layer and yarn roots connected to the cut pile segments; The cut pile layer has a looping position corresponding to the root of the yarn. At the looping position, the planar loop, the interlacing loop of the cut pile layer, and the root of the yarn form a yarn fixing point in a cover weave manner, and the root of the yarn is restricted between the planar loop and the interlacing loop.

2. The anti-pilling, snagging, and velvet-cut double-sided fabric according to claim 1, characterized in that, The planar coil is a continuous loop of yarn, and the planar coil covers the side of the yarn root near the flat surface layer.

3. The anti-pilling, snagging, and velvet-cut double-sided fabric according to claim 1, characterized in that, The interlaced loop is formed by the ground yarn and the wool yarn in the cut pile layer. The interlaced loop is located at the root of the wool yarn on the side close to the cut pile layer, and together with the planar loop, it clamps the root of the wool yarn.

4. The anti-pilling, snagging, and velvet-cut double-sided fabric according to claim 1, characterized in that, Multiple yarn-fixing points are distributed at intervals along the weaving direction of the cut pile layer, and a cut pile area is formed between two adjacent yarn-fixing points for the yarn to be exposed.

5. A method for weaving an anti-pilling, snagging, cut-pile double-sided fabric, characterized in that, include: Equip the weft knitting double-sided circular knitting machine with knitting needles and cutting needles; The knitting needles are controlled to hook the yarn in the looping area of ​​the needle plate and form a planar loop; Feed yarn into the cutting needle, and control the cutting needle to hook the yarn and stretch it to form a cut circle arc; The knitting needle is controlled to hook the yarn in the looping area of ​​the needle cylinder and form an interlaced loop; At the looping position corresponding to the yarn, the planar loop, the interlacing loop, and the root of the yarn are controlled to form a yarn fixing point in a cover weave manner, and the root of the yarn is restricted between the planar loop and the interlacing loop; The blade is controlled to cut the arc to be cut, so that the yarn forms a cut pile segment connected to the root of the yarn.

6. The weaving method of the anti-pilling, snagging, and cut-pile double-sided fabric according to claim 5, characterized in that, The control of the knitting needles to hook the yarn and form planar loops in the looping area of ​​the needle plate includes: The needles of the double-sided circular knitting machine are controlled to hook the yarn and complete looping, bending and unlooping, so that the yarn is continuously looped on one side of the double-sided fabric. Control the yarn to avoid the outer surface of the flat surface layer.

7. A knife needle, characterized in that, The cut pile segment is applied to the formation of the anti-pilling, snagging, cut pile double-sided fabric according to any one of claims 1-4, or is applied to the weaving method of the anti-pilling, snagging, cut pile double-sided fabric according to any one of claims 5-6, wherein the cut needle includes a hook portion, a needle body, a first cutting surface, and a second cutting surface. The hook portion is located at one end of the needle body and is used to hook the yarn and stretch the yarn to form a cut circle during the lifting and lowering of the cutting needle. The first cutting surface is connected to the needle body and is located below the needle hook portion; the first cutting surface is located on the path that the arc to be cut passes through as the needle rises, and the first cutting surface is used to make the first cut on the arc to be cut during the rising process of the needle. The second cutting surface is connected to the needle body and is disposed opposite to the first cutting surface; the second cutting surface is located on the path that the arc to be cut passes through as the needle descends, and the second cutting surface is used to perform a second cut on the arc to be cut during the descent of the needle.

8. The knife needle according to claim 7, characterized in that, The cutting needle is equipped with a pin for engaging with the looping triangle of the weft knitting double-sided circular knitting machine. The pin is used to control the lifting height of the needle hook under the guidance of the looping triangle.

9. The knife needle according to claim 7, characterized in that, The second cutting surface and the needle body are in a barb shape.

10. The knife needle according to claim 7, characterized in that, The angle between the first cutting surface and the needle body is in the range of 22°-25°.

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