Preparation process of warp-knitted jacquard multi-layer jacquard vamp fabric

Abstract

The invention relates to the technical field of textile, provides a preparation process of a warp-knitted jacquard multi-layer jacquard vamp fabric, and solves the problems that the jacquard change layers of the existing warp-knitted double-jacquard single-layer fabric are not rich enough, the fabric strength is relatively poor, and the light, thin and breathable effects cannot be achieved at the same time. Comprising the following steps: (1) setting guide bars, wherein the guide bars of a knitting machine comprise a ground bar guide bar, a pattern bar guide bar and a jacquard guide bar; (2) threading and weaving guide bars: fully threading the ground guide bars GB1 and GB2; the threading mode of the pattern comb guide bar PB3-PB74 is threading according to the designed pattern comb effect, and any weft insertion jacquard weave is formed; the ground comb guide bar GB1 wraps yarns of all other layers through coils and extension lines, and the ground comb guide bar GB2 wraps and locks yarns of other layers except the GB1.

Description

Technical Field

[0001] The invention relates to the field of textile technology, in particular to a preparation process of a warp-knitted jacquard multi-layered jacquard shoe upper fabric. Background Art

[0002] As the sports footwear industry continues to demand more functionality, aesthetics, and production efficiency, warp-knitted jacquard upper fabrics, with their unique three-dimensional structure, programmable jacquard effect, and efficient production, are becoming a core technology for high-end sports footwear. Traditional warp-knitted upper materials rely on a warp-beam yarn feeding system, using spacer layers or double jacquard devices to create basic jacquard patterns. However, due to limitations in warp let-off methods and weave design, their pattern layering and color expression are limited, making it difficult to meet the market's urgent demand for personalized and complex designs.

[0003] Existing warp-knitted double-jacquard single-layer fabrics only have two layers of jacquard pattern variation. Each jacquard yarn can only be varied by shifting one stitch length from its original size, typically within a range of 3-4 stitches. A fully threaded jacquard (1100 yarn) piece of fabric typically only uses a single yarn, or in special cases, two yarns. The jacquard yarn typically ranges in thickness from 75D to 300D. Thicker yarns are more difficult to knit and can't guarantee quality.

[0004] The existing product is a warp-knitted multi-comb jacquard single needle bed fabric. It is a material that can thread yarn of any thickness at the required position in a fixed cycle according to the designed pattern. This material can form rich patterns by padding yarn in a large range (16N single time, 350N cumulatively) according to the set padding yarn number. The required texture is spliced by multiple groups (72) of different individual padding combs to meet the needs of local embroidery texture; the previous jacquard jacquard raw materials and patterns have certain limitations.

[0005] Chinese patent application No. CN202211124887.6 discloses a novel warp-knitted double jacquard double-creel shoe upper fabric and a weaving method, which fabric includes a first color block jacquard area, wherein the first color block jacquard area includes a chain structure formed by the first yarn through a ground comb on the front needle bed, the second yarn is looped on the front and rear needle beds through jacquard bars JB2.1 and jacquard bars JB3.1 to form structures 1-0-1-1 / 2-3-2-2 / / and 2-3-2-2 / 1-0-1-1 / / , the third yarn is looped on the front and rear needle beds through jacquard bars JB2.2 and jacquard bars JB3.2 to form structures 2-2-2-3 / 1-1-1-0 / / and 1-1-1-0 / 2-2-2-3 / / , the fourth yarn is formed on the rear needle bed through a ground comb to form a chain structure, and the fifth needle bed is formed on the rear needle bed to form a three-needle warp plain structure. This invention uses jacquard bars to connect the top and bottom layers, eliminating the need for separate spacer yarns to connect the front and back layers, ensuring the fabric remains seamless. Combined with a specific jacquard weave, the jacquard bars simultaneously connect the top and bottom layers while also creating jacquard patterns in solid-color areas. However, this weaving process uses only a ground bar and jacquard bars, resulting in overlapping patterns and structural layers, which can limit layering.

[0006] Chinese patent application number CN202110778796.3 discloses a double jacquard warp knitted fabric and its knitting process, comprising a front wear-resistant layer composed of two ground yarns and a jacquard yarn, a middle jacquard layer with patterned yarns, and a back jacquard layer composed of a jacquard yarn. The two ground yarns and the jacquard yarn are looped to form the front wear-resistant layer and form mesh holes on the front. The patterned yarn jacquard layer is equipped with 16 or more patterned yarns. The jacquard yarn of the bottom jacquard layer adopts a weft insertion structure. However, the fabric does not have the structure of fishing thread + patterned comb + weft insertion spool + weft insertion fishing thread, and the fabric strength is relatively poor. Summary of the Invention

[0007] Therefore, in response to the above problems, the present invention provides a preparation process of a warp-knitted jacquard multi-layer jacquard shoe upper fabric to solve the problems that the jacquard variation layers of the existing warp-knitted double jacquard single-layer fabric are not rich enough, the fabric strength is relatively poor, and it cannot be both light and breathable.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A preparation process of a warp-knitted jacquard multi-layered jacquard shoe upper fabric comprises the following steps:

[0010] S1. Comb settings: RSJ89 / 2B is selected as the weaving machine. The combs of the weaving machine include: ground combs, pattern combs and jacquard combs. The ground combs include: GB1, GB2 and GB77; the pattern combs include PB3-PB74; the jacquard combs include knitting jacquard and weft-inserting jacquard. The combs JB75-1 and JB75-2 are knitting jacquard, and JB76-1 and JB76-2 are weft-inserting jacquard.

[0011] S2, comb weaving:

[0012] The ground comb bars GB1 and GB2 are both fully threaded; the pattern comb bars PB3-PB74 thread the yarn according to the designed pattern comb effect to form an arbitrary weft-inserted jacquard structure; the ground comb bar GB1 wraps all other layers of yarn through loops and extension lines, and the ground comb bar GB2 wraps and locks the yarns of other layers except GB1; through the loop-forming structure of the ground comb bars GB1 and GB2, all the weft-inserted yarns are bundled to stabilize the structure of the warp-knitted jacquard multi-layer jacquard shoe upper fabric; through the jacquard design of the pattern comb bars and the jacquard jacquard of the jacquard comb bars, a multi-layer jacquard structure is formed; the yarns threaded by the ground comb bars GB1 and GB77 are laid on the bottom layer of the warp-knitted jacquard multi-layer jacquard shoe upper fabric.

[0013] Furthermore, the combing bars for inserting weft yarns include: GB77, JB76-1, JB76-2, PB3-PB74.

[0014] Furthermore, the ground combing bar GB1 is fully threaded with 0.1TPEE yarn, and the basic structure of the inlay yarn is 43 / 01 / / .

[0015] Furthermore, the ground combing bar GB2 is fully threaded with 100D polyester FDY disc yarn, and the basic yarn structure of the padding is 10 / 01 / / .

[0016] Furthermore, the pattern comb bars PB3-PB74 are threaded with 300D cationic pattern comb yarn frame yarn, and any one of the pattern comb bars PB3-PB74 can be used to make any different inlay yarns.

[0017] Furthermore, the jacquard bars JB75-1 and JB75-2 are made of 150D polyester creel yarn, and the basic yarn structure of the padding is 00 / 22 / / .

[0018] Furthermore, the jacquard bars JB76-1 and JB76-2 are made of 150D cationic disc yarn, and the basic yarn structure of the padding is 11 / 00 / / .

[0019] Furthermore, the ground combing bar GB77 is threaded with 0.1TPEE disk yarn, and the basic structure of the inlay yarn is 00 / 33 / / .

[0020] Furthermore, the 0.1TPEE disc yarn is transparent fishing yarn.

[0021] By adopting the above technical solution, the beneficial effects of the present invention are:

[0022] Ground bars ensure the stability and continuity of the basic structure, forming a smooth bottom layer of loops. Pattern bars independently introduce additional weft inlays or floating yarns to create an intermediate layer, adding thickness and volume to the fabric. Jacquard bars focus on the surface pattern, creating a high-precision pattern through complex inlay motion. This layered, collaborative approach achieves a three-dimensional weaving effect, unlike traditional weaving techniques that rely solely on ground bars and jacquards, where the pattern and structure overlap and the layering is limited.

[0023] The single-layer warp knitted jacquard shoe fabric after machine upgrading has the following characteristics:

[0024] (1) Based on the double-layer variation of the original warp-knitted double jacquard single-layer fabric, up to 6 layers of variable pattern comb layers are added; the ground comb is responsible for the basic structure, the pattern comb processes the middle layer, and the jacquard focuses on jacquard, reducing the load of a single comb bar, reducing the risk of breakage, and improving weaving stability; and it can form a multi-layer structure at one time, avoiding subsequent composite processing (such as laminating different materials), saving time and cost;

[0025] (2) Each variable pattern comb can be offset within the range of 350 stitches;

[0026] (3) A piece of cloth with a full-threaded comb (72*3 combs) can theoretically thread 72 different yarns and create 72 different patterns. At the same time, the comb is combined with the jacquard to form a multi-layered feature on the cloth surface.

[0027] (4) The thickness of the raw materials of the floral comb can generally range from 75D to 1500D.

[0028] The fabric prepared by this technical solution includes a structure of fishing silk + pattern comb + weft inlay frame + weft inlay disk head + weft inlay fishing silk. The usable surface of the fabric is the extension line surface, so the extension line is on the top and the coil surface is on the bottom. It has a light and breathable effect and a certain strength. The layered texture has a richer and more varied effect than the previous jacquard. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the arrangement position of the combs in an embodiment of the present invention;

[0030] Figure 2 : is a yarn laying motion diagram of the combing bar GB1 in an embodiment of the present invention;

[0031] Figure 3 : is a yarn laying motion diagram of the combing bar GB2 in an embodiment of the present invention;

[0032] Figure 4 The figure is a yarn laying motion diagram of the combing bars JB75-1 and JB75-2 in the embodiment of the present invention;

[0033] Figure 5 2 is a diagram of the yarn laying motion of the combing bars JB76-1 and JB76-2 in an embodiment of the present invention;

[0034] Figure 6 2 is a yarn laying motion diagram of the combing bar GB77 in an embodiment of the present invention;

[0035] Figure 7 This is a partial yarn laying motion diagram of a pattern comb bar in an embodiment of the present invention;

[0036] Explanation of the numbers in the figure: 1-0.1TPEE disc yarn, 2-100D polyester FDY disc yarn, 3-150D polyester creel yarn, 4-150D cationic disc yarn, 5-300D cationic creel yarn. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are:

[0038] refer to Figures 1 to 7 A preparation process of a warp-knitted jacquard multi-layered jacquard shoe upper fabric comprises the following steps:

[0039] (1) Comb setting:

[0040] RSJ89 / 2B is selected as the weaving machine. The combs of the weaving machine include: ground combs, pattern combs and jacquard combs. The ground combs include: GB1, GB2 and GB77; the pattern combs include PB3-PB74; the jacquard combs include loop jacquard and weft jacquard. The combs JB75-1 and JB75-2 are loop jacquard, and JB76-1 and JB76-2 are weft jacquard.

[0041] The knitting machine includes a front needle bed and a rear needle bed, wherein the comb bars are arranged in the following order from the front needle bed to the rear needle bed: GB1, GB2, PB3-PB74, JB75-1, JB75-2, JB76-1, JB76-2, GB77;

[0042] (2) Comb threading and weaving:

[0043] GB1 full threading specification is 0.1TPEE disk yarn, and the basic yarn structure is 43 / 01 / / ;

[0044] GB2 full wear specification is 100D polyester FDY disc yarn, the basic yarn structure is 10 / 01 / / ;

[0045] The threading specification of PB3-PB74 is 300D cationic patterned yarn, and the threading method is to thread the yarn according to the designed patterned effect to form any weft-inserted jacquard structure. Any of the patterned comb bars PB3-PB74 can be used to make any different inlay yarn.

[0046] JB75-1 and JB75-2 use 150D polyester creel yarn, and the basic weave of the lapping yarn is 00 / 22 / / ;

[0047] JB76-1 and JB76-2 use 150D cationic yarn and the basic weave of the lapping yarn is 11 / 00 / / ;

[0048] The GB77 wear specification is 0.1TPEE disk yarn, and the basic yarn structure is 00 / 33 / / .

[0049] The GB1 wraps all other layers of yarn through coils and extension lines.

[0050] The GB2 wraps and locks the yarns of other layers except GB1.

[0051] The specification is 0.1TPEE disc yarn which is transparent fishing silk.

[0052] The combing bars for threading weft yarn are: GB77, JB76-1, JB76-2, PB3-PB74.

[0053] Through the loop-forming structure of GB1 and GB2, all the weft yarns are bound together, thereby stabilizing the structure of the warp-knitted jacquard multi-layered jacquard shoe upper fabric.

[0054] Through the jacquard design of the pattern comb and the jacquard comb, a multi-layer jacquard structure is formed.

[0055] The transparent fishing thread is laid on the bottom layer of the warp-knitted jacquard multi-layered jacquard shoe upper fabric.

[0056] The parameters listed above for the inlay yarn structure are selected for the specific implementation of the present invention, and changes to individual structures also fall within the scope of protection of this patent.

[0057] The parameters listed in the above yarn specifications are selected for the specific implementation of the present invention, and individual structural changes also fall within the scope of protection of this patent.

[0058] Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the present invention.

Claims

1. A preparation process for a warp-knitted jacquard multi-layered jacquard shoe upper fabric, characterized in that: The following steps are involved: S1. Comb settings: RSJ89 / 2B is selected as the weaving machine. The combs of the weaving machine include: ground combs, pattern combs and jacquard combs. The ground combs include: GB1, GB2 and GB77; the pattern combs include PB3-PB74; the jacquard combs include knitting jacquard and weft-inserting jacquard. The combs JB75-1 and JB75-2 are knitting jacquard, and JB76-1 and JB76-2 are weft-inserting jacquard. S2, comb weaving: The ground comb bars GB1 and GB2 are both fully threaded; the pattern comb bars PB3-PB74 thread the yarn according to the designed pattern comb effect to form an arbitrary weft-inserted jacquard structure; the ground comb bar GB1 wraps all other layers of yarn through loops and extension lines, and the ground comb bar GB2 wraps and locks the yarns of other layers except GB1; through the loop-forming structure of the ground comb bars GB1 and GB2, all the weft-inserted yarns are bundled to stabilize the structure of the warp-knitted jacquard multi-layer jacquard shoe upper fabric; through the jacquard design of the pattern comb bars and the jacquard jacquard of the jacquard comb bars, a multi-layer jacquard structure is formed; the yarns threaded by the ground comb bars GB1 and GB77 are laid on the bottom layer of the warp-knitted jacquard multi-layer jacquard shoe upper fabric.

2. The preparation process of a warp-knitted jacquard multi-layered jacquard shoe upper fabric according to claim 1, characterized in that: The combing bars for threading weft yarn are: GB77, JB76-1, JB76-2, PB3-PB74.

3. The process for preparing a warp-knitted jacquard multi-layered jacquard shoe upper fabric according to claim 1, characterized in that: The ground combing bar GB1 is fully threaded with 0.1TPEE yarn and the basic yarn structure is 43 / 01 / / .

4. The process for preparing a warp-knitted jacquard multi-layered jacquard shoe upper fabric according to claim 1, characterized in that: The ground combing bar GB2 is fully threaded with 100D polyester FDY disc yarn, and the basic structure of the lapping yarn is 10 / 01 / / .

5. The process for preparing a warp-knitted jacquard multi-layered jacquard shoe upper fabric according to claim 1, characterized in that: The pattern comb bars PB3-PB74 are threaded with 300D cationic pattern comb yarn frame yarn, and any one of the pattern comb bars PB3-PB74 can be used to make any different inlay yarns.

6. The process for preparing a warp-knitted jacquard multi-layered jacquard shoe upper fabric according to claim 1, characterized in that: The jacquard bars JB75-1 and JB75-2 are made of 150D polyester creel yarn, and the basic yarn structure of the lapping yarn is 00 / 22 / / .

7. The process for preparing a warp-knitted jacquard multi-layered jacquard shoe upper fabric according to claim 1, characterized in that: The jacquard bars JB76-1 and JB76-2 are made of 150D cationic disc yarn, and the basic yarn structure is 11 / 00 / / .

8. The process for preparing a warp-knitted jacquard multi-layered jacquard shoe upper fabric according to claim 1, characterized in that: The ground combing bar GB77 is threaded with 0.1TPEE yarn and the basic structure of the inlay yarn is 00 / 33 / / .

9. The process for preparing a warp-knitted jacquard multi-layered jacquard shoe upper fabric according to claim 3, characterized in that: The specification is 0.1TPEE disc yarn which is transparent fishing silk.

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