A weaving method and fabric having a back facing fabric

Abstract

The application discloses a weaving method of a back-hanging fabric and the fabric, the fabric is woven by a circular knitting machine, the back-hanging fabric comprises at least one cycle unit, the cycle unit is first woven by hooking the face yarn in a positive direction through a needle cylinder, then is woven by hooking the back-hanging yarn in a positive direction and a reverse direction in sequence through the needle cylinder, is then woven by hooking the face yarn in a reverse direction through the needle cylinder, and finally is woven by hooking the back-hanging yarn in a positive direction and a reverse direction in sequence through the needle cylinder; the above technical scheme makes each face yarn weaving row have a back-hanging yarn weaving row formed by the positive direction and the reverse direction of the back-hanging yarn, further makes the back-hanging yarn weaving row in the fabric have no interval, solves the problem of fabric sparseness, and meanwhile keeps the original weaving positions of the face yarn and the back-hanging yarn unchanged, avoids many flying lines in the cycle weaving process, and even avoids the problem of entanglement.

Description

Technical Field

[0001] This invention relates to the field of textile technology, and in particular to a weaving method and fabric with a back-hanging fabric. Background Technology

[0002] The weaving of existing elastic fabrics usually uses at least two yarns. One of them is the backing yarn, which mainly plays the role of elasticity, making the fabric elastic but not showing on the surface of the fabric. It is also usually used as the starting yarn to weave anti-slip loops to prevent the fabric from breaking at the beginning. The remaining yarn is mainly used as the face yarn and is shown on the surface of the fabric.

[0003] See Figure 1 and Figure 2 As shown, existing back-hanging fabrics are mainly woven by alternating back-hanging yarns and face yarns. That is, the existing circular knitting machine weaves elastic fabrics by hooking the face yarn and making full-position needles in both forward and reverse directions (two face yarn rows), and then hooking the back-hanging yarn and making half-position needles in both forward and reverse directions (one back-hanging yarn row). Since the back-hanging yarn row formed by the forward and reverse back-hanging yarns is only reflected behind one face yarn row, there is no back-hanging yarn row behind the other face yarn row. That is, the back-hanging yarn rows in the woven fabric are spaced out, resulting in a sparse fabric.

[0004] See Figure 3 As shown, to improve the spacing of the backing yarn weave, if the face yarn is directly split into forward and reverse rotations and a forward and reverse backing yarn is inserted, although this eliminates the gaps in the backing yarn weave and solves the problem of sparse fabric, the face yarn only rotates forward. The face yarn hooked by the needles is still at the end of the forward rotation. At this point, the position of the shuttle with the backing yarn is different from the face yarn position. The circular knitting machine prioritizes the currently executing backing yarn weave, rotating the needles to the end of the forward rotation position, first reversing the backing yarn, then reversing it, and then reversing it again. At this point, the face yarn reversing will intersect with the forward-rotating backing yarn, resulting in many fly yarns (see...). Figure 3 (In the middle, blue diagonal line), the back yarn and face yarn are prone to tangling during the weaving process, and it is also not conducive to hiding the back yarn. Summary of the Invention

[0005] Therefore, a weaving method with a backing fabric is needed to solve the problem of sparse absorption of existing elastic fabrics.

[0006] To achieve the above objectives, the present invention provides a weaving method for a back-hanging fabric, wherein the fabric is woven by a circular knitting machine, and the back-hanging fabric includes at least one revolving unit. The revolving unit first weaves by hooking the face yarn with a needle and rotating it clockwise, then weaves by hooking the back-hanging yarn with a needle and rotating it clockwise and counterclockwise in sequence; then weaves by hooking the face yarn with a needle and rotating it counterclockwise in sequence, and finally weaves by hooking the back-hanging yarn with a needle and rotating it clockwise and counterclockwise in sequence.

[0007] Furthermore, when the position of the needle cylinder is different from the position of the face yarn weaving or the position of the back yarn weaving, the needle cylinder rotates forward or backward to carry empty needles.

[0008] Furthermore, the loop unit specifically includes the following weaving sequence:

[0009] The needle cylinder hooks onto the yarn and rotates clockwise to weave;

[0010] The syringe reverses to run an empty needle;

[0011] The needle cylinder hooks onto the back-hanging yarn and rotates clockwise to weave;

[0012] The needle cylinder hooks onto the back-hanging yarn and reverses its direction to weave;

[0013] The syringe rotates clockwise to move an empty needle.

[0014] The needle cylinder hooks onto the yarn and reverses its direction to weave;

[0015] The needle cylinder hooks onto the back-hanging yarn and rotates clockwise to weave;

[0016] The needle cylinder hooks onto the back yarn and reverses to weave.

[0017] Furthermore, there are several loop units, and these loop units are closely connected.

[0018] Furthermore, the needle cylinder hooks onto the yarn and rotates clockwise or counterclockwise to weave the yarn.

[0019] Furthermore, the needle hooks onto the back-hanging yarn and rotates clockwise and counterclockwise, alternating half positions for weaving.

[0020] Furthermore, the veil is made of TPU.

[0021] Furthermore, the back-hanging yarn is an elastic yarn.

[0022] Furthermore, the back-hanging yarn is a core-spun yarn.

[0023] A back-hanging fabric, which is woven using the aforementioned back-hanging fabric weaving method.

[0024] Unlike existing technologies, the above-mentioned technical solution breaks down the continuous weaving of the face yarn by alternating forward and reverse rotations. After each forward or reverse rotation of the face yarn, a backing yarn, also alternating forward and reverse rotations, is inserted. This ensures that each row of face yarn is followed by a row of backing yarn formed by the forward and reverse rotations, thus eliminating gaps in the backing yarn rows within the fabric and solving the problem of sparse fabric. Simultaneously, it maintains the original weaving positions of the face yarn and backing yarn, avoiding numerous flying threads and even tangling issues during the cyclic weaving process. This effectively reduces downtime of the circular knitting machine due to flying threads and tangling, thereby improving production efficiency. Furthermore, it helps improve fabric quality, ensuring better strength and durability. Attached Figure Description

[0025] Figure 1 Background technology includes a back-hanging fabric weaving process diagram;

[0026] Figure 2 Background art includes a real image of the back-hanging fabric;

[0027] Figure 3 Background technology includes a back-hanging fabric weaving process diagram;

[0028] Figure 4 The example includes a diagram of the back-hanging fabric weaving process;

[0029] Figure 5 The example shown includes a picture of the back-hanging fabric.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Veil;

[0032] 20. Back-hanging yarn. Detailed Implementation

[0033] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0034] 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.

[0035] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0036] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0037] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0038] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0039] Similar to the interpretation in the Patent Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also interpreted in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0040] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0041] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0042] See Figures 4-5 As shown, this invention provides a weaving method for a back-hanging fabric, woven using a circular knitting machine. By splitting the face yarn 10 into sequential forward and reverse rotations during continuous weaving, a back-hanging yarn 20 is inserted after each forward or reverse rotation of the face yarn 10. This ensures that each face yarn row is followed by a back-hanging yarn row formed by the forward and reverse rotations of the back-hanging yarn 20, thus eliminating gaps in the back-hanging yarn rows and solving the problem of sparse fabric. Simultaneously, the original weaving positions of the face yarn 10 and the back-hanging yarn 20 remain unchanged, avoiding numerous flying threads or even tangling during the cyclic weaving process. This effectively reduces downtime of the circular knitting machine due to flying threads and tangling, thereby improving production efficiency. Furthermore, it helps improve fabric quality, ensuring better strength and durability.

[0043] The following provides an embodiment of a weaving method for a back-hanging fabric according to the present invention. The fabric is woven by a circular knitting machine. The back-hanging fabric includes at least one revolving unit. The revolving unit first weaves the face yarn 10 by hooking the needle cylinder and rotating it clockwise, then weaves the back-hanging yarn 20 by hooking the needle cylinder and rotating it clockwise and counterclockwise in sequence; then weaves the face yarn 10 by hooking the needle cylinder and rotating it counterclockwise in sequence, and finally weaves the back-hanging yarn 20 by hooking the needle cylinder and rotating it clockwise and counterclockwise in sequence.

[0044] The aforementioned face yarn 10 refers to the yarn that appears on the surface of the fabric after it has been woven. The characteristics and quantity of face yarn 10 are not limited. If multiple yarns exist, they can have different or the same characteristics, and the specific selection can be made according to requirements. Fabric design diversity can be achieved by changing the color of the yarns. The aforementioned backing yarn 20 refers to the yarn that does not appear on the surface of the fabric after it has been woven. The characteristics and quantity of backing yarn 20 are not limited. If multiple yarns exist, they can have different or the same characteristics, and the specific selection can be made according to requirements. Similarly, face yarn 10 and backing yarn 20 can have different or the same characteristics, and their quantities can be the same or different. The aforementioned characteristics refer to yarn color, material, elasticity, etc.

[0045] The aforementioned forward rotation usually refers to the cylinder of the circular knitting machine rotating in a predetermined direction (such as clockwise or counterclockwise), while reverse rotation is the opposite direction to forward rotation; for example, forward rotation is clockwise, and reverse rotation is counterclockwise. The aforementioned needle cylinder hooking the face yarn 10 and rotating it clockwise for weaving means that the needle cylinder hooks the face yarn 10 and drives the face yarn 10 to weave in the clockwise direction, so that the face yarn 10 forms a loop structure and is woven into a face yarn weave that appears on the fabric surface. Similarly, the aforementioned needle cylinder hooking the face yarn 10 and rotating it counterclockwise for weaving means that the needle cylinder hooks the face yarn 10 and drives the face yarn 10 to weave in the counterclockwise direction, so that the face yarn 10 forms a loop structure and is woven into a face yarn weave. Similarly, the aforementioned needle cylinder hooking the back yarn 20 and rotating it clockwise and counterclockwise for weaving means that the needle cylinder first hooks the back yarn 20 and drives the back yarn 20 to weave in the clockwise direction, so that the back yarn 20 forms a loop structure, and then weaves it in the counterclockwise direction, so that the back yarn 20 forms a loop structure. This clockwise and counterclockwise rotation is used to weave a back yarn weave that does not appear on the fabric surface, that is, it does not appear on the fabric surface together with the face yarn weave.

[0046] In the above weaving method, after the needle cylinder hooks onto the face yarn 10 and weaves clockwise, the needle cylinder is at the end of the clockwise rotation (which is also the start of the counter-clockwise rotation). The next step is for the needle cylinder to hook onto the back yarn 20 and weave clockwise. At this point, the needle cylinder needs to be at the start of the clockwise rotation (which is also the end of the counter-clockwise rotation). The needle cylinder position is different from the weaving position of the back yarn 20. Alternatively, after the needle cylinder hooks onto the back yarn 20 and weaves counter-clockwise, the needle cylinder is at the end of the counter-clockwise rotation (which is also the start of the clockwise rotation). The next step is for the needle cylinder to hook onto the face yarn 10 and weave counter-clockwise. At this point, the needle cylinder needs to be at the start of the counter-clockwise rotation (which is also the end of the clockwise rotation). The needle cylinder position is different from the weaving position of the face yarn 10. That is, there are instances where the needle cylinder position is different from the weaving position of the face yarn 10 or the weaving position of the back yarn 20. This can be addressed by allowing the needle cylinder to rotate clockwise or counter-clockwise to perform empty needle movements. The above-mentioned needle cylinder rotation in forward or reverse direction with empty needle means that during the forward or reverse rotation of the needle cylinder, neither the face yarn 10 nor the back yarn 20 is hooked, and the needle returns to the weaving position of the face yarn 10 or the weaving position of the back yarn 20 in an empty needle manner.

[0047] To further illustrate and facilitate understanding of the invention, the invention provides a specific weaving sequence.

[0048] The number of stitches usually determines the width of the fabric with a backing. The following example uses 1-20 stitches as a row of knitting, with the starting point of the forward turn (ending point of the reverse turn) being the 1st stitch and the ending point of the forward turn (starting point of the reverse turn) being the 20th stitch.

[0049] Specifically, the loop unit includes the following weaving sequence:

[0050] The needle cylinder hooks onto yarn 10 and rotates clockwise to knit; (the needle cylinder hooks onto yarn 10 and rotates clockwise from the 1st stitch to the 20th stitch, finally stopping at the 20th stitch position)

[0051] The syringe is reversed to feed the needle without inserting it; (the syringe is reversed from the 20th needle to the 1st needle, and finally stops at the position of the 1st needle).

[0052] The needle cylinder hooks onto the backing yarn 20 and rotates clockwise to knit; (the needle cylinder hooks onto the backing yarn 20 and rotates clockwise from the 1st stitch to the 20th stitch, finally stopping at the 20th stitch position)

[0053] The needle cylinder hooks onto back yarn 20 and reverses direction to knit; (the needle cylinder hooks onto back yarn 20 and reverses direction from the 20th stitch to the 1st stitch, finally stopping at the 1st stitch position)

[0054] The syringe rotates clockwise to move the needle without inserting it; (the syringe rotates clockwise from the 1st needle to the 20th needle, and finally stops at the 20th needle position)

[0055] The needle cylinder hooks onto yarn 10 and reverses direction to knit; (the needle cylinder hooks onto yarn 10 and reverses direction from the 20th stitch to the 1st stitch, finally stopping at the 1st stitch position)

[0056] The needle cylinder hooks onto the backing yarn 20 and rotates clockwise to knit; (the needle cylinder hooks onto the backing yarn 20 and rotates clockwise from the 1st stitch to the 20th stitch, finally stopping at the 20th stitch position)

[0057] The needle cylinder hooks onto backing yarn 20 and reverses direction to knit. (The needle cylinder hooks onto backing yarn 20 and reverses direction from the 20th stitch to the 1st stitch, finally stopping at the 1st stitch position.)

[0058] The above steps form a loop unit. Typically, there are several loop units in the fabric, meaning there are multiple loop units. These loop units can be arranged linearly, in a ring, in a matrix, or in other ways. Each loop unit can maintain a certain interval or be closely connected.

[0059] The aforementioned needle cylinder hooks onto the yarn 10 and rotates clockwise or counterclockwise to weave using full-position needles. Each stitch participates in the weaving, ensuring that each loop connects with adjacent loops to form a continuous loop structure. This results in a high-density interlacing of the yarn 10 within the fabric, effectively dispersing external forces and improving the overall strength of the fabric. When the fabric is stretched or abraded, the interlacing points act as support points, preventing the yarn 10 from breaking or falling off, which is particularly suitable for elastic fabrics with a backing. Simultaneously, it ensures that the yarn 10 is woven evenly during the weaving process, avoiding uneven thickness or inconsistent texture on the fabric surface. The needle cylinder hooks onto the backing yarn 20 and rotates clockwise or counterclockwise to weave using half-position needles. This helps enhance the fabric's breathability, especially in elastic fabrics with a backing. The alternating clockwise and counterclockwise weaving method makes the yarn distribution more even within the fabric, providing uniform elasticity. This uniform elasticity allows the fabric to better recover its original shape and maintain its stability when subjected to external forces. This ensures that the fabric has sufficient elasticity without causing discomfort or deformation due to excessive or insufficient elasticity.

[0060] The aforementioned face yarn 10 can be a non-elastic yarn, such as cotton yarn, polyester yarn, nylon yarn, etc.; or it can be an elastic yarn, such as spandex yarn, polyester elastic yarn, nylon elastic yarn, polyester elastic yarn, mercerized elastic yarn, pure cotton elastic yarn, etc. It should be noted that when the face yarn 10 is an elastic yarn, its elasticity is less than that of the backing yarn 20. In some embodiments, the backing yarn 20 is TPU (Thermoplastic Urethane). TPU has excellent elasticity, can quickly return to its original shape after being subjected to external force, can withstand greater tensile force, and is not easily broken due to stretching; moreover, TPU has excellent abrasion resistance, making it suitable as a face yarn to resist long-term friction and wear, extending the fabric's service life.

[0061] The aforementioned backing yarn 20 is an elastic yarn to give the backing fabric elasticity. The elastic yarn can be spandex yarn, polyester elastic yarn, nylon elastic yarn, polyester elastic yarn, mercerized elastic yarn, pure cotton elastic yarn, etc. It can also be a composite yarn, which is composed of two or more different yarns, combining the advantages of different yarns. In some embodiments, such as polyester and spandex (special yarns containing nylon hot-melt yarn), it is suitable for making a durable and elastic backing yarn 20. The composite yarn can be formed by twisting (yarns that are twisted to a certain extent after being combined) or untwisting (yarns that are not twisted after being combined). In some embodiments, the composite yarn is formed by two or more different yarns freely coupled together in parallel. In some embodiments, the composite yarn has one yarn as the core, with other yarns surrounding the core surface, forming a core-spun yarn.

[0062] Elastic fabrics with backing can be used in products such as ribbing (e.g., sock cuffs, collars, cuffs, etc.), elastic bands (e.g., waistbands, waist trainers, shoulder straps, sports protective gear, etc.), and shapewear (bodysuits, bodysuits, underwear, etc.). They can also be used for garment edge shaping, overlocking shaping, and binding shaping.

[0063] The present invention also provides a back-hanging fabric, which is woven using the above-described weaving method for back-hanging fabrics.

[0064] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of the present invention, or equivalent structural or procedural transformations made using the content of the present invention's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection of the present invention.

Claims

1. A weaving method having a back-hanging fabric, characterized in that, The fabric is woven by a circular knitting machine. The backing fabric includes at least one revolving unit. The revolving unit first uses a needle cylinder to hook the face yarn and rotate it clockwise for weaving. Then, it uses a needle cylinder to hook the backing yarn and rotate it clockwise and counterclockwise in sequence for weaving. After that, it uses a needle cylinder to hook the face yarn and rotate it counterclockwise for weaving. Finally, it uses a needle cylinder to hook the backing yarn and rotate it clockwise and counterclockwise in sequence for weaving. When the position of the needle cylinder is different from the position of the face yarn weaving or the position of the backing yarn weaving, the needle cylinder rotates clockwise or counterclockwise to perform empty needle movements.

2. The method of weaving with a back panel according to claim 1, wherein, The loop unit specifically includes the following weaving sequence: The needle cylinder hooks onto the yarn and rotates clockwise to weave; The syringe reverses to run an empty needle; The needle cylinder hooks onto the back-hanging yarn and rotates clockwise to weave; The needle cylinder hooks onto the back-hanging yarn and reverses its direction to weave; The syringe rotates clockwise to move an empty needle. The needle cylinder hooks onto the yarn and reverses its direction to weave; The needle cylinder hooks onto the back-hanging yarn and rotates clockwise to weave; The needle cylinder hooks onto the back yarn and reverses to weave.

3. The method of weaving with a back panel according to claim 1, wherein, The loop unit is a plurality of units, and the plurality of loop units are closely connected.

4. The method of weaving with a back panel according to claim 1, wherein, The needle cylinder hooks onto the yarn and rotates clockwise or counterclockwise to weave the yarn.

5. The method of claim 1, wherein, The needle cylinder hooks onto the back-hanging yarn and rotates clockwise and counterclockwise, moving halfway between needle positions to weave.

6. The method of weaving with a back panel according to claim 1, wherein, The veil is made of TPU.

7. The weaving method for a back-hanging fabric according to claim 1, characterized in that, The backing yarn is an elastic yarn.

8. The weaving method for a back-hanging fabric according to claim 7, characterized in that, The back-hanging yarn is a core-spun yarn.

9. A fabric with a back hanging feature, characterized in that, The fabric is woven using the weaving method for the back-hanging fabric as described in any one of claims 1-8.

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