A weft knitting process for a knitted heddle fabric and its application in footwear.
By using the weft knitting process of heddle fabrics, the transfer loop technology is used to weave heddle fabrics on a weft knitting machine, which solves the problem of cumbersome weaving on shuttle looms, improves production efficiency, and maintains the strength and breathability of the fabric, making it suitable for shoe materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FUJIAN HUAFENG NEW MATERIALS
- Filing Date
- 2023-12-29
- Publication Date
- 2026-08-04
AI Technical Summary
Existing heddle fabrics require weaving on a shuttle loom, which involves a complicated weaving process and low production efficiency.
The weft knitting process of the knitted heddle fabric is adopted. The surface and bottom layers of the knitted heddle structure are knitted one stitch at a time, and the eyelets are formed by the transfer loop technology, which simplifies the knitting process and allows knitting to be carried out directly on the weft knitting machine.
It improves production efficiency, simplifies the weaving process, and reduces processes such as warping, sizing, and threading. The woven heddle fabric retains the appearance, strength, and breathability of heddle fabric, making it suitable for shoe materials.
Smart Images
Figure CN117867730B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of textile technology, and in particular to a weft knitting process for knitted heddle fabric and its shoe material. Background Technology
[0002] With the continuous development of knitting technology, various weaving techniques have emerged, and fabrics woven using these techniques are increasingly used in footwear materials. Among them, heddle fabrics are particularly popular in the footwear market. Heddle fabrics primarily involve dividing the warp yarns into sliver warp and ground warp, which twist and interweave with the weft yarns. During weaving, the ground warp remains stationary, while the sliver warp twists back and forth to the left and right of the ground warp, interweaving with the weft yarns. When the sliver warp moves from one side of the ground warp to the other, the sliver warp and ground warp twist once, increasing the gap between the warp and weft yarns at the twist point, creating yarn holes in the fabric. Heddle fabrics not only have a unique style but also boast high strength, durability, and breathability. These characteristics are particularly advantageous in spring and summer footwear uppers. Currently, heddle fabrics are mainly woven using shuttle looms. Before weaving, the yarns need to undergo processes such as warping, sizing, and threading, which is cumbersome and hinders production efficiency. Summary of the Invention
[0003] Therefore, there is a need to provide a weft knitting process for heddle fabrics to solve the problem that existing heddle fabrics must be woven on a shuttle loom, which involves many knitting processes and low production efficiency.
[0004] To achieve the above objectives, the present invention provides a knitting process for a heddle fabric, wherein the heddle fabric includes a heddle section, and the heddle section has at least one heddle structure. The surface layer and the bottom layer of the heddle structure are knitted one stitch at a time. During knitting, the loops formed by the loop knitting of the surface layer are transferred to the bottom layer, and the loops formed by the loop knitting of the bottom layer are transferred to the surface layer, so that eyelets are formed between adjacent knits.
[0005] Furthermore, the knitted heddle section also includes a breathable structure, which is composed of two adjacent structures. One structure has a surface layer of open knitting and a bottom layer of loop knitting; the other structure has a surface layer of loop knitting and a bottom layer of open knitting.
[0006] Furthermore, the breathable structure is located on both sides of the knitted heddle structure.
[0007] Furthermore, the knitting heddle section also includes a stabilizing structure, which is composed of two adjacent structures. One structure has a surface layer with one stitch and one loop, and a bottom layer with one stitch and one loop; the other structure has a surface layer with one stitch and one loop, and a bottom layer with one stitch and one loop.
[0008] Furthermore, the stabilizing structure is located on one or both sides of the knitted heddle structure.
[0009] Furthermore, the yarn of the knitted heddle structure is a transparent monofilament; or the yarn of the breathable structure is a transparent monofilament; or the yarn of the stabilizing structure is any chemical fiber.
[0010] Furthermore, the transparent monofilament is spun from one or more materials including polyester, nylon, cationic polyester, TPU, and TPEE.
[0011] Furthermore, the knitted heddle fabric also includes a non-knitted heddle section, which includes a transitional structure composed of two adjacent structures. One structure has a surface layer with open stitch knitting and a bottom layer with one stitch-one-open stitch knitting or one stitch-one-open stitch knitting; the other structure has a surface layer with one stitch-one-open stitch knitting or one stitch-one-open stitch knitting and a bottom layer with open stitch knitting.
[0012] Furthermore, the non-knitted heddle portion also includes a stabilizing structure, which is located on one or both sides of the transition structure.
[0013] A type of shoe material fabric is woven using the knitted heddle fabric weaving process described above.
[0014] Unlike existing technologies, the knitted heddle section of the above-mentioned technical solution includes a knitted heddle structure. Both the surface and bottom layers of the knitted heddle structure are knitted one stitch at a time. Utilizing a loop transfer technique, during knitting, the loops formed by the loop knitting of the surface layer are transferred to the bottom layer, and the loops formed by the loop knitting of the bottom layer are transferred to the surface layer, creating eyelets between adjacent knits. These eyelets are similar to the yarn holes in heddle fabric, allowing the knitted heddle fabric to have the appearance of heddle fabric while maintaining high strength, durability, and breathability. Its knitting process is simple, requiring no knitting on a loom, and the resulting knitted heddle fabric can replace heddle fabric in footwear materials. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the knitting heddle section of the present invention;
[0016] Figure 2 This is a schematic diagram of the knitting of the non-knitted heddle section of the present invention. Detailed Implementation
[0017] 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.
[0018] 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.
[0019] 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.
[0020] 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.
[0021] 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.
[0022] 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.
[0023] 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.
[0024] 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.
[0025] 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.
[0026] See Figure 1 and Figure 2 As shown, this invention provides a knitting process for heddle fabric. The heddle section of this invention includes a heddle structure, in which both the surface and bottom layers are knitted with a single stitch and a loop. Utilizing a loop transfer technique, during knitting, the loops formed by the loop knitting of the surface layer are transferred to the bottom layer, and the loops formed by the loop knitting of the bottom layer are transferred to the surface layer, creating eyelets between adjacent knits. These eyelets are similar to the yarn holes in heddle fabric, allowing the heddle fabric to have the appearance of heddle fabric while maintaining high strength, durability, and breathability. The knitting process is simple, requiring no knitting on a loom, which greatly shortens the weaving process. It eliminates the need for warping, sizing, and threading processes; weaving can proceed directly by threading the yarn, significantly improving production efficiency. The resulting heddle fabric can replace heddle fabric in shoe materials.
[0027] The following is a detailed description of the knitting process of a heddle fabric provided by an embodiment of the present invention. See also... Figure 1As shown, a knitted heddle fabric weave process is described. The knitted heddle fabric includes a heddle section, which contains at least one heddle weave structure. The surface layer and bottom layer of the heddle weave structure are knitted in a loop-and-knit pattern. During knitting, the loops formed by the loop knitting of the surface layer are transferred to the bottom layer, and the loops formed by the loop knitting of the bottom layer are transferred to the surface layer, creating eyelets between adjacent knits. The loop-and-knit pattern of the surface and bottom layers of the heddle weave structure is a loop-and-knit pattern of the surface and bottom layers of the heddle weave structure. The eyelets between adjacent knits are created by knitting the interval knitting of the heddle weave structure in loops, then transferring the loops to create eyelets at the empty needles. That is, an eyelet is formed between two adjacent loop knitting intervals that transfer loops.
[0028] A further improvement to the aforementioned knitting process is that the knitted heddle section also includes a breathable structure. This breathable structure consists of two adjacent weaves. One weave has a surface layer of open stitch knitting and a bottom layer of loop knitting; the other weave has a surface layer of loop knitting and a bottom layer of open stitch knitting. By alternating between open stitch and loop knitting in adjacent weaves, a breathable structure is formed, giving the knitted heddle fabric excellent breathability. Preferably, the breathable structures are located on both sides of the knitted heddle structure, making the surrounding weave thinner and helping to highlight the eyelets, thus improving the appearance and breathability of the knitted heddle fabric. In the aforementioned breathable structure, one weave has a surface layer of open stitch knitting and a bottom layer of loop knitting, meaning that each row of the surface layer of one weave is open stitch knitted and each row of the bottom layer is loop knitted; the other weave has a surface layer of loop knitting and a bottom layer of open stitch knitting, meaning that each row of the surface layer of the other weave is loop knitted and each row of the bottom layer is open stitch knitted.
[0029] In a further improvement to the above-mentioned knitting process, the knitting heddle section also includes a stabilizing structure, which is composed of two adjacent structures. One structure has a surface layer knitted with one stitch and a bottom layer knitted with one stitch and one stitch; the other structure has a surface layer knitted with one stitch and a bottom layer knitted with one stitch and one stitch. The aforementioned stabilizing structure employs a one-knit-one-knit pattern on the surface layer and a one-knit-one-knit pattern on the bottom layer. This creates a one-knit-one-knit-one-round cycle on the surface layer and a one-knit-one-knit-one-knit-one-round cycle on the bottom layer. In other words, when a knit row on the surface layer of the stabilizing structure is a knit row, the corresponding knit row on the bottom layer is a round row, and vice versa. Similarly, the other stabilizing structure uses a one-knit-one-knit pattern on the surface layer and a one-knit-one-knit pattern on the bottom layer. This creates a one-knit-one-knit-one-knit-one-round cycle on the surface layer and a one-knit-one-knit-one-round cycle on the bottom layer. This stabilizing structure, formed by the alternating one-knit-one-knit pattern on both the surface and bottom layers, increases the strength of the knitted heddle fabric and prevents it from unraveling. Preferably, the stabilizing structure is located on one or both sides of the knitted heddle structure. It can be used to connect knitted heddle structures to knitted heddle structures, or to connect knitted heddle structures to breathable structures, thereby increasing the strength of the knitted heddle fabric and preventing the knitted heddle fabric from loosening.
[0030] The term "looping" refers to creating loops through looped knitting, while "empty needle" refers to creating floats through empty needle knitting.
[0031] The yarns used in the aforementioned knitted heddle structures and breathable structures, especially the knitted heddle structures which require high-strength yarns for the transfer motion, are preferably transparent monofilaments. Transparent monofilament yarns can also be used in breathable structures. Transparent monofilament yarns are typically made from highly transparent materials, offering excellent transparency and enhancing the product's aesthetics and fashion sense. Using transparent monofilament yarns in both knitted heddle structures and breathable structures makes them more permeable and enhances the recognizability of the woven fabric. For yarn strength considerations, the yarns in knitted heddle structures and breathable structures can be made from two strands of transparent monofilament. Yarn composed of two strands of transparent monofilament is stronger, ensuring that the yarn will not break during the knitting process. These transparent monofilaments are spun from one or more materials, including but not limited to polyester, nylon, cationic polyester, TPU, and TPEE. Transparent monofilaments spun from materials such as polyester, nylon, cationic polyester, TPU, and TPEE have high strength and durability, giving them excellent tensile strength during use. They are also lightweight and soft, making textiles or products more comfortable to use and providing better durability and stability.
[0032] The yarn used in the aforementioned stabilizing structure is any synthetic fiber. Yarns with high stability and durability are typically selected, capable of withstanding significant tensile and compressive forces, and exhibiting good abrasion resistance and durability. In practical designs, pure white yarn can be used, resulting in a white stabilizing structure that contrasts sharply with the transparency of knitted heddle structures and breathable fabrics, enhancing the visual appeal of the knitted heddle fabric. For yarn strength considerations, the stabilizing structure yarn can be made of two polyester strands. Yarn composed of two polyester strands is stronger, ensuring that the yarn will not break during the knitting process.
[0033] Of course, in order to make the patterns of knitted trachet fabrics more diverse, knitted trachet fabrics usually include non-knitted trachet sections in addition to the knitted trachet sections. The non-knitted trachet sections can be designed according to actual needs to enrich the patterns of knitted trachet fabrics and make the patterns of knitted trachet fabrics more diverse.
[0034] To better understand this invention, the following embodiment of a double-sided jacquard double-transfer jacquard machine implementing the above-mentioned weaving process is provided for illustrative purposes. However, the implementation of the double-sided jacquard double-transfer jacquard machine is not intended to limit the scope of patent protection of this invention. Compared with the woven heddle weaving process, the weft knitting process significantly shortens the weaving flow, eliminating the need for warping, sizing, and warp threading processes; weaving can be carried out directly by threading the yarn, greatly improving production efficiency.
[0035] Machine: Double-sided jacquard double-loop jacquard machine;
[0036] The two loop-forming systems of the double-sided jacquard double-transfer jacquard machine form a single weaving line. The yarn of the surface layer is fed into the needle cylinder of one loop-forming system through the yarn feeder for surface weaving, and the yarn of the bottom layer is fed into the needle plate of the other loop-forming system for bottom weaving. The needle plate is arranged with 12 needles in two stages, and the needle cylinder is arranged with 21 needles in two stages.
[0037] See Figure 1 As shown, the yarn arrangement of the knitting heddle section is as follows:
[0038] First and Second Paths: Any Fiber
[0039] Third to eighth threads: Transparent monofilament
[0040] The knitted heddle section is woven using an eight-way circular knitting method:
[0041] First row: The surface layer is knitted with one stitch and one loop, and the bottom layer is knitted with one stitch and one loop;
[0042] Second approach: The surface layer is knitted with one stitch per loop, and the bottom layer is knitted with one stitch per loop;
[0043] Third row: The surface layer is knitted with open stitches, and the bottom layer is knitted in circles;
[0044] Fourth row: The surface layer is knitted in circles, and the bottom layer is knitted with open stitches;
[0045] Fifth row: The surface layer is knitted with open stitches, and the bottom layer is knitted in circles;
[0046] Sixth route: The top layer and bottom layer are knitted one stitch at a time. When knitting, the loops formed by the knitting of the top layer are transferred to the bottom layer, and the loops formed by the knitting of the bottom layer are transferred to the top layer, so that eyelets are formed between adjacent knitting.
[0047] Seventh row: The top layer is knitted with open stitches, and the bottom layer is knitted in circles;
[0048] Eighth row: The surface layer is knitted in circles, and the bottom layer is knitted with open stitches.
[0049] See Figure 2 As shown, in order to enrich the patterns of the fabric, knitted heddle fabrics usually also include non-knitted heddle sections, and the yarns of the non-knitted heddle sections can be any chemical fiber.
[0050] The non-knitted heddle section is woven using a sixteen-way circular knitting pattern.
[0051] First row: The surface layer is knitted with one stitch and one loop, and the bottom layer is knitted with one stitch and one loop;
[0052] Second approach: The surface layer is knitted with one stitch per loop, and the bottom layer is knitted with one stitch per loop;
[0053] Third row: The surface layer is knitted with open stitches, and the bottom layer is knitted with one stitch followed by one open stitch.
[0054] Fourth row: The surface layer is knitted with one stitch followed by one space, and the bottom layer is knitted with space stitches;
[0055] Fifth row: The top layer is knitted with open stitches, and the bottom layer is knitted with one stitch followed by one open stitch;
[0056] Sixth row: The surface layer is knitted with one stitch and one loop, and the bottom layer is knitted with loops;
[0057] Seventh row: The top layer is knitted with open stitches, and the bottom layer is knitted with one stitch followed by one open stitch;
[0058] Eighth row: The surface layer is knitted with one stitch and one loop, and the bottom layer is knitted with loops;
[0059] Ninth row: The surface layer is knitted with one stitch and one loop, and the bottom layer is knitted with one stitch and one loop;
[0060] Tenth row: The top layer is knitted with one stitch in a row and the bottom layer is knitted with one stitch in a row;
[0061] 11th line: The surface layer is knitted with a single stitch, and the bottom layer is knitted with one stitch in each row;
[0062] Twelfth row: The surface layer is knitted with one stitch in the air and the bottom layer is knitted with an air stitch.
[0063] Thirteenth row: The surface layer is knitted with a single stitch, and the bottom layer is knitted with one stitch in each row;
[0064] Fourteenth row: The surface layer is knitted with one stitch in the air and the bottom layer is knitted with an air stitch;
[0065] Row 15: The surface layer is knitted with a single stitch, and the bottom layer is knitted with one stitch in a single stitch.
[0066] Sixteenth row: The surface layer is knitted with one stitch in the air and the bottom layer is knitted with an air stitch.
[0067] A shoe material fabric is woven using the aforementioned knitted heddle fabric weaving process. The shoe material fabric woven using this process possesses the appearance of a heddle fabric while maintaining high strength, durability, and breathability. It can be used as the upper for spring and summer shoes, giving them a unique style, high strength, durability, and breathability.
[0068] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this invention. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this invention, or equivalent structural or procedural transformations made using the description and drawings of this invention, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection for this invention.
Claims
1. A knitting process for heddle fabric, characterized in that, The knitted heddle fabric includes a knitted heddle section, which has at least one knitted heddle structure. The surface and bottom layers of the knitted heddle structure are knitted one stitch at a time. During knitting, the loops formed by the loop knitting of the surface layer are transferred to the bottom layer, and the loops formed by the loop knitting of the bottom layer are transferred to the surface layer, creating eyelets between adjacent knits. The knitted heddle section also includes a stabilizing structure, which consists of two adjacent structures. One structure has a surface layer knitted one stitch at a time and a bottom layer knitted one stitch at a time; the other structure has a surface layer knitted one stitch at a time and a bottom layer knitted one stitch at a time.
2. The knitting process of the heddle fabric according to claim 1, characterized in that, The knitted heddle section also includes a breathable structure, which is composed of two adjacent structures. One structure has a surface layer of open knitting and a bottom layer of loop knitting; the other structure has a surface layer of loop knitting and a bottom layer of open knitting.
3. The knitting process of the heddle fabric according to claim 2, characterized in that, The breathable structures are located on both sides of the knitted heddle structure.
4. The knitting process of the heddle fabric according to claim 1, characterized in that, The stabilizing structure is located on one or both sides of the knitted heddle structure.
5. The knitting process of the heddle fabric according to claim 2, characterized in that, The yarn of the knitted heddle structure is a transparent monofilament; or the yarn of the breathable structure is a transparent monofilament; or the yarn of the stabilizing structure is any chemical fiber.
6. The knitting process of the heddle fabric according to claim 5, characterized in that, The transparent monofilament is spun from one or more materials including polyester, nylon, TPU, and TPEE.
7. The knitting process of the heddle fabric according to claim 4, characterized in that, The knitted heddle fabric also includes a non-knitted heddle section, which includes a transitional structure composed of two adjacent structures. One structure has a surface layer of open stitch knitting and a bottom layer of one-needle-one-open stitch knitting or one-open-one-needle knitting. The other structure has a surface layer of one-needle-one-open stitch knitting or one-open-one-needle knitting and a bottom layer of open stitch knitting.
8. The knitting process of the heddle fabric according to claim 7, characterized in that, The non-knitted heddle portion also includes a stabilizing structure, which is located on one or both sides of the transition structure.
9. A shoe material fabric, woven using the knitted heddle fabric weaving process of any one of claims 1-8.