Warp-knitted vamp fabric with thickness layer change and knitting method thereof

Abstract

The invention relates to the technical field of textile, provides a warp-knitted vamp fabric with layered thickness change and a knitting method thereof, and solves the problems that the existing concave-convex cloth sample cannot have layered change of different thicknesses at the same time, a thin area cannot achieve an extremely thin effect, a thick area is easy to collapse, and the capacity and profit of the cloth sample are poor. Comprising the following steps: (1) weaving preparation; (2) guide bar configuration; (3) knitting on a machine: forming a surface layer by the guide bar GB1, forming a middle connecting layer by the guide bars JB2.1, JB2.2, JB3.1 and JB3.2, and forming a bottom layer with a stable structure by the guide bars GB4 and GB5; the JB2.1 and the JB2.2 are connected through a control surface layer and a bottom layer in a negative yarn feeding mode to form a plurality of thick areas, the thick areas have more than five layers with different thicknesses, and the thickness range is 0.8 mm-5 mm; and the guide bars JB3.1 and JB3.2 are shrunk and connected through front and back yarn laying to form a thin area.

Description

Technical Field

[0001] The present invention relates to the technical field of textiles, and particularly to a warp-knitted upper fabric with thickness level variations and a knitting method thereof. Background Art

[0002] In the current situation where the sports shoes and fashion footwear markets continue to prosper and consumers' requirements for product quality and design sense are becoming increasingly stringent, the innovation of upper materials and processes has become a key area of competition among major brands. The warp-knitted upper with concave and convex effects is exactly an innovative achievement emerging under this industry trend. It skillfully combines modern textile technology and fashion design concepts, bringing a new visual experience and performance improvement to footwear products.

[0003] Chinese Patent Application No. CN202210899310.6 discloses a double jacquard single-layer multi-color gradient jacquard fabric and its manufacturing method. The knitting yarns of the fabric include a loop pure color area and a dot area. The loop pure color area includes: the chain stitch of the first yarn; the double warp stitch and the weft insertion stitch of the second and third yarns respectively; the weft insertion stitch of the fourth yarn and the plain stitch of the fifth yarn; among them, the first and fifth yarns are transparent yarns, and the yarn characteristics of the second and third yarns are different; the fourth yarn has the same yarn characteristics as the second or third yarn; in the dot area, the second or third yarn is in the chain stitch, and the others are the same as the organization of the loop pure color area; through the development of a new basic jacquard organization and multi-level weft insertion organizations, and in cooperation with the loop organization, the weft insertion jacquard and the loop jacquard are compounded, and through the yarn matching of the ground comb and the combination of the organization of the jacquard comb, a light and thin upper jacquard effect is achieved. However, this upper only has a light and thin effect and cannot simultaneously present thickness level variations.

[0004] Chinese Patent Application No. CN202210182048.3 discloses a knitted fabric of a double-needle bed flower comb jacquard warp knitting machine, an upper and its manufacturing method, including an integrally knitted fabric body, which includes: a surface layer, an intermediate layer, a bottom layer, and a pattern superimposed layer. The intermediate layer is knitted below the surface layer. The intermediate layer includes a pattern layer and a linking layer. The bottom layer is knitted below the intermediate layer. The pattern superimposed layer is knitted above the surface layer and / or between the intermediate layers. The double-needle bed flower comb jacquard fabric knitted by using the double-needle bed warp knitting machine equipment with additional flower comb combs achieves an integrally knitted and formed pattern stacking effect through reasonable process comb configuration, and combines multiple features such as mesh holes, plain cloth, pattern insertion, and different thickness woolen height effects in a double-layer fabric. However, the thin area of the upper with different thicknesses cannot achieve an extremely thin effect, and the thick area is prone to collapse. Summary of the Invention

[0005] Therefore, in view of the above problems, the present invention provides a warp-knitted upper fabric with thickness level changes and its knitting method, which solves the problems that the existing concave-convex fabric patterns cannot simultaneously have different thickness level changes, the thin areas cannot achieve an extremely thin effect, the thick areas are prone to collapse, and the production capacity and profit of the fabric patterns are poor.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A knitting method for a warp-knitted upper fabric with thickness level changes includes the following steps:

[0008] S1. Knitting preparation: Design the pattern of the upper on a computer.

[0009] S2. Guide bar configuration: Select a creel warp knitting machine with more than nine guide bars. The creel warp knitting machine includes a front needle bed and a rear needle bed. Among them, the nine guide bars are arranged in order from the front needle bed to the rear needle bed as: GB1, JB1.1, JB1.2, JB2.1, JB2.2, JB3.1, JB3.2, GB4, GB5.

[0010] S3. On-machine knitting: The guide bar GB1 forms the surface layer, the guide bars JB2.1, JB2.2, JB3.1 and JB3.2 form the intermediate connection layer, and the guide bars GB4 and GB5 form the bottom layer with a stable structure.

[0011] Among them, the JB2.1 and JB2.2 adopt the passive yarn feeding method to connect by controlling the connection between the surface layer and the bottom layer, forming several thick areas. The several thick areas have more than 5 different thickness levels, and the thickness range is 0.8 mm - 5 mm.

[0012] The guide bars JB3.1 and JB3.2 form a thin area by shrinkage connection through front and back yarn laying.

[0013] Among them, the guide bars GB4 and GB5 play a role in supporting the bottom layer.

[0014] Further, the guide bars JB1.1 and JB1.2 cooperate with the guide bar GB1 to form a random mesh structure on the surface.

[0015] Further, the guide bars GB1, JB1.1, JB1.2 and GB5 are all threaded with polyester bobbin yarns.

[0016] Further, the guide bars JB2.1 and JB2.2 are threaded with polyester creel yarns, and the guide bars JB3.1 and JB3.2 are threaded with polyester high-elastic yarns.

[0017] Further, the guide bars JB2.1 and JB2.2 are threaded with polyester high-elastic yarns, and the guide bars JB3.1 and JB3.2 are threaded with polyester creel yarns.

[0018] Furthermore, the comb GB4 is threaded with transparent fishing silk disk head yarns.

[0019] The present invention also provides a warp-knitted upper fabric with thickness level changes, which is knitted by using the knitting method of the above-mentioned warp-knitted upper fabric with thickness level changes.

[0020] By adopting the foregoing technical solution, the beneficial effects of the present invention are as follows:

[0021] 1. The warp-knitted upper fabric prepared by this technical solution consists of a surface layer, an intermediate connection layer, and a bottom layer, and adopts a common fixed structure for the surface and bottom combined with three groups of variable jacquards. The first group of jacquards (JB1.1 and JB1.2) cooperate with the common comb GB1 of the surface layer to form a random mesh effect. The second group of jacquards (JB2.1 and JB2.2) adopts a negative yarn feeding method, and more than 5 different thickness structures can be formed by controlling the connection between the surface layer and the bottom layer. The third group of jacquards (JB3.1 and JB3.2) selects yarns with elastic shrinkage, and forms a thin area through front and back laying-in and shrinkage connection; the main difference of this technology is that the way of covering the intermediate layer with monofilaments in the past is cancelled, and two groups of different jacquards are used to form the intermediate connection layer, and by changing the structure of the connection layer, an uneven effect with arbitrarily variable thickness can be formed.

[0022] 2. For traditional fabrics with different thickness levels, the unevenness of thickness can only be in the range of 1.7 mm - 3.5 mm, and there are only 2 thickness level changes. In the fabric sample prepared by this technical solution, there can be more than 5 thickness level changes in the thinnest and thickest areas, and the range of thickness difference change is larger, which is 0.8 mm - 5 mm.

[0023] 3. There is no fixed common monofilament connection in the intermediate layer of the fabric sample prepared by this technical solution, so the change of the intermediate layer can be arbitrarily controlled. Only the front and back connection of high-elastic yarns at the thinnest position has an extremely thin effect, which is more comfortable and breathable. The thick area can be filled with a large amount of 150D - 200D yarns, and the convex feeling of the finished product is full and not easily affected by post-processing. The uneven effect of this technology mainly depends on the thickness and tension of the yarns used in the jacquard yarn rack, so the horizontal density can be made smaller compared with the previous uneven fabric samples. In this way, more finished products can be produced with a fixed number of yarns, and the production capacity and profit are higher. There are various control methods for the lateral extension of this product, and the support at the bottom is increased, which has more advantages in forming shoes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the warp-knitted upper fabric with thickness level changes in the embodiment of the present invention;

[0025] Figure 2 It is a plan view of the warp-knitted upper fabric with thickness level changes in the embodiment of the present invention;

[0026] Figure 3 The arrangement positions of nine guide bars in the embodiment of the present invention;

[0027] Figure 4 The guide bar lapping motion diagrams of guide bars GB1 and GB5 in the embodiment of the present invention;

[0028] Figure 5 The guide bar lapping motion diagrams of guide bars JB1.1 and JB1.2 in the embodiment of the present invention;

[0029] Figure 6 The guide bar lapping motion diagrams of guide bars JB2.1 and JB2.2 in the embodiment of the present invention;

[0030] Figure 7 The guide bar lapping motion diagrams of guide bars JB3.1 and JB3.2 in the embodiment of the present invention;

[0031] Figure 8 The guide bar lapping motion diagram of guide bar GB4 in the embodiment of the present invention;

[0032] Description of reference numerals in the figure: 1 - surface layer, 2 - intermediate connection layer, 3 - bottom layer, 4 - polyester high - elastic yarn, 5 - polyester bobbin yarn, 6 - polyester creel yarn, 7 - transparent fishing line bobbin yarn, 21 - thick area, 22 - thin area, 211 - first thick area, 212 - second thick area, 213 - third thick area, 214 - fourth thick area, 215 - fifth thick area. Detailed implementation manners

[0033] Example 1, referring to Figures 1 to 8 , a knitting method for a warp - knitted upper fabric with variable thickness levels, comprising the following steps:

[0034] S1. Knitting preparation: Design the pattern of the upper on a computer;

[0035] S2. Guide bar configuration: Select a creel warp knitting machine with more than nine guide bars. The creel warp knitting machine includes a front needle bed and a rear needle bed. The arrangement positions of the nine guide bars from the front needle bed to the rear needle bed are in sequence: GB1, JB1.1, JB1.2, JB2.1, JB2.2, JB3.1, JB3.2, GB4, GB5;

[0036] S3. Knitting on the machine:

[0037] The guide bar GB1 forms the surface layer, and the basic lapping organization is 10 / 01 / / ;

[0038] The basic lapping organizations of the guide bars JB1.1 and JB1.2 are 1011 / 1211 / / ;

[0039] The basic yarn laying-in structure of the guide bars JB2.1 and JB2.2 is 1010 / 1212 / / ;

[0040] The basic yarn laying-in structure of the guide bars JB3.1 and JB3.2 is 1010 / 1212 / / ;

[0041] The basic yarn laying-in structure of the guide bar GB4 is 23 / 10 / / ;

[0042] The basic yarn laying-in structure of the guide bar GB5 is 10 / 01 / / ;

[0043] Among them, the guide bars GB4 and GB5 form a bottom layer with a stable structure.

[0044] The guide bars JB1.1, JB1.2, JB2.1, JB2.2, JB3.1 and JB3.2 form an intermediate connection layer.

[0045] The guide bars JB1.1 and JB1.2 cooperate with the guide bar GB1 to form a random mesh structure on the surface.

[0046] The JB2.1 and JB2.2 adopt a passive yarn feeding method to connect the surface layer and the bottom layer, forming a number of thick regions 21. A number of the thick regions have 5 hierarchical thicknesses, including a first thick region 211, a second thick region 212, a third thick region 213, a fourth thick region 214, and a fifth thick region 215. The thickness of the first thick region is 1 mm, the thickness of the second thick region is 2 mm, the thickness of the third thick region is 3 mm, the thickness of the fourth thick region is 4 mm, and the thickness of the fifth thick region is 5 mm.

[0047] The guide bars JB3.1 and JB3.2 are threaded with polyester high-elastic yarn 4 and form a thin region 22 through shrinkage connection of front and back yarn laying-in.

[0048] The guide bars GB1, JB1.1, JB1.2 and GB5 are all threaded with polyester bobbin yarn 5.

[0049] The guide bars JB2.1 and JB2.2 are threaded with polyester creel yarn 6.

[0050] The guide bar GB4 is threaded with transparent fishing filament bobbin yarn 7.

[0051] The present invention also provides a warp knitted upper fabric with thickness level changes, which is knitted by using the knitting method of the warp knitted upper fabric with thickness level changes as described above.

[0052] Example 2

[0053] A knitting method of a warp knitted upper fabric with thickness level changes includes the following steps:

[0054] S1. Knitting preparation: Design the pattern of the shoe upper on the computer;

[0055] S2. Guide bar configuration: Select a warp knitting machine with more than nine guide bars. The warp knitting machine includes a front needle bed and a rear needle bed. The nine guide bars are arranged in sequence from the front needle bed to the rear needle bed as follows: GB1, JB1.1, JB1.2, JB2.1, JB2.2, JB3.1, JB3.2, GB4, GB5;

[0056] S3. Knitting on the machine:

[0057] The guide bar GB1 forms the surface layer, and the basic laying-in structure is 10 / 01 / / ;

[0058] The basic laying-in structures of the guide bars JB1.1 and JB1.2 are 1011 / 1211 / / ;

[0059] The basic laying-in structures of the guide bars JB2.1 and JB2.2 are 1010 / 1212 / / ;

[0060] The basic laying-in structures of the guide bars JB3.1 and JB3.2 are 1010 / 1212 / / ;

[0061] The basic laying-in structure of the guide bar GB4 is 23 / 10 / / ;

[0062] The basic laying-in structure of the guide bar GB5 is 10 / 01 / / ;

[0063] Among them, the guide bars GB4 and GB5 form the bottom layer with a stable structure.

[0064] The guide bars JB1.1, JB1.2, JB2.1, JB2.2, JB3.1 and JB3.2 form the intermediate connection layer.

[0065] The guide bars JB1.1 and JB1.2 cooperate with the guide bar GB1 to form a random mesh structure on the surface.

[0066] The JB2.1 and JB2.2 adopt the passive yarn feeding method to connect the surface layer and the bottom layer, forming a number of thick regions 21. The number of said thick regions has five different thickness levels, including the first thick region 211, the second thick region 212, the third thick region 213, the fourth thick region 214 and the fifth thick region 215. The thickness of the first thick region is 1 mm, the thickness of the second thick region is 2 mm, the thickness of the third thick region is 3 mm, the thickness of the fourth thick region is 4 mm, and the thickness of the fifth thick region is 5 mm.

[0067] The comb bars JB3.1 and JB3.2 pass through the polyester yarn beam yarn 6, and a thin area 22 is formed by shrinkage connection with front and back yarn laying.

[0068] The comb bars GB1, JB1.1, JB1.2 and GB5 all pass through the polyester beam yarn 5.

[0069] The comb bars JB2.1 and JB2.2 pass through the polyester high-elastic yarn 4.

[0070] The comb bar GB4 passes through the transparent fishing filament beam yarn 7.

[0071] The present invention also provides a warp-knitted upper fabric with thickness level changes, which is knitted by using the knitting method of the above warp-knitted upper fabric with thickness level changes.

[0072] The parameters listed in the above tissues are selected for the specific implementation of the present invention, and the change of individual tissues also belongs to the scope of protection of this patent.

[0073] Although the present invention is specifically shown and introduced in combination with the preferred implementation, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all of them are within the protection scope of the present invention.

Claims

1. A knitting method for a warp knitted upper fabric with thickness level changes, characterized in that, It includes the following steps: S1. Knitting preparation: Design the pattern of the shoe upper on a computer; S2. Guide bar configuration: Select a warp knitting machine with a creel having more than nine guide bars. The warp knitting machine includes a front needle bed and a rear needle bed. The nine guide bars are successively arranged from the front needle bed to the rear needle bed as follows: GB1, JB1.1, JB1.2, JB2.1, JB2.2, JB3.1, JB3.2, GB4, GB5; S3. Knitting on the machine: The guide bar GB1 forms the surface layer, the guide bars JB2.1, JB2.2, JB3.1 and JB3.2 form the intermediate connection layer, and the guide bars GB4 and GB5 form the bottom layer with a stable structure; Among them, the JB2.1 and JB2.2 adopt the passive yarn feeding method to connect by controlling the connection between the surface layer and the bottom layer, forming a number of thick regions. The number of the thick regions has more than 5 different thickness levels, and the thickness range is 0.8 mm - 5 mm; The guide bars JB3.1 and JB3.2 form a thin region through shrinkage connection of front and back yarn laying; 2. The knitting method of a warp knitted upper fabric with thickness level change according to claim 1, characterized in that: The guide bars JB1.1 and JB1.2 cooperate with the guide bar GB1 to form a random mesh structure on the surface; 3. The knitting method of a warp-knitted upper fabric with thickness level changes according to claim 1, characterized in that: The guide bars GB1, JB1.1, JB1.2 and GB5 are all threaded with polyester bobbin yarns; 4. The knitting method of a warp knitted upper fabric with thickness level variation according to claim 1, characterized in that: The guide bars JB2.1 and JB2.2 are threaded with polyester creel yarns, and the guide bars JB3.1 and JB3.2 are threaded with polyester high-elastic yarns; 5. The knitting method of a warp knitted upper fabric with thickness level changes according to claim 1, characterized in that: The guide bars JB2.1 and JB2.2 are threaded with polyester high-elastic yarns, and the guide bars JB3.1 and JB3.2 are threaded with polyester creel yarns; 6. The knitting method of a warp knitted upper fabric with thickness level variation according to claim 1, characterized in that: The guide bar GB4 is threaded with transparent fishing filament bobbin yarns; 7. A warp-knitted upper fabric with thickness level variations, characterized in that: It is knitted by using the knitting method of the warp knitted shoe upper fabric with thickness level change as described in any one of claims 1 - 6.

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