Partially elastic shoe material

Abstract

A partially elastic shoe material, characterized in that the shoe material comprises a base layer knitted by means of a loop-forming ground guide bar GB1 from multifilament yarns to form a chain stitch structure, and a jacquard layer overlying the base layer, wherein the jacquard layer comprises an elastic region knitted by means of a first pair of jacquard bars from multifilament yarns to form a loop structure, and an inelastic region knitted by means of the first pair of jacquard bars from multifilament yarns to form a fine structure, wherein the loop-forming ground guide bar GB1 moves in a movement mode with a yarn laying notation 1-0 / 0-1 / / for knitting, and the first pair of jacquard bars moves in a movement mode with a yarn laying notation for knitting that is achieved by changes with a combination of arbitrary stitch numbers with four stitch distances of 0,1, 2 and 3 is produced as a basic offset unit, and wherein a partially elastic layer resulting from pattern guide bars is located on the elastic area.

Description

[0001] The present invention relates to the field of knitting textile fabrics and, in particular, to a partially elastic shoe material and a method for its production.

[0002] With the accelerated technological modernization, not only are the requirements for shoe materials in the processing of the shoe upper material increasing, but more and more emphasis is also being placed on comfort, process, feel, quality, style, design, etc. Partially elastic shoe materials are usually a composite consisting of a non-elastic fabric and another elastic fabric laminated to achieve local elasticity of the fabric. However, the non-elastic part of the partially elastic shoe material still has a certain degree of elasticity, while the elastic fabric lacks excellent elasticity, which does not ensure better wrapping and comfort for the feet.The two materials must be sewn or glued to the vamp of the shoe, which requires additional processes and the use of environmentally harmful chemicals, and affects production efficiency.

[0003] It is an object of the present invention to provide a partially elastic shoe material and a method for producing the same, by means of which a local elasticity can be achieved in a specific area of ​​the shoe material, which allows the shoe material to change with the tension and relaxation of the foot muscles and enables a tighter wrapping of the foot by the shoe material.

[0004] To achieve the object, the present invention offers the following technical solutions: A partially elastic shoe material is provided, wherein the shoe material comprises a base layer knitted by means of a loop-forming ground guide bar GB1 from multifilament yarns to form a chain stitch structure, and a jacquard layer overlying the base layer. The jacquard layer comprises an elastic region and an inelastic region. The elastic region is knitted by means of a first pair of jacquard bars from multifilament yarns to form a loop structure. The inelastic region is knitted by means of the first pair of jacquard bars from multifilament yarns to form a fine structure. The loop-forming ground guide bar GB1 moves in a motion mode with a yarn laying notation 1-0 / 0-1 / / for knitting.The first pair of jacquard bars move in a motion mode with a yarn placement notation for knitting, which is generated by changes with a combination of any stitch count with four stitch distances of 0, 1, 2, and 3 as the basic offset unit. A partially elastic layer resulting from pattern guide bars is located on the elastic area.

[0005] Furthermore, the partially elastic layer resulting from pattern guide bars is knitted by overlaying the mesh structure layer with a spandex weft insertion.

[0006] Furthermore, the fineness of the multifilament yarn is 70-300D, while the fineness of the spandex in the spandex weft insertion is 70-1400D.

[0007] Furthermore, the composition of the multifilament yarn is selected from one of nylon fibers, polyester fibers, vinylon fibers, acrylic fibers, synthetic fibers, polyethylene fibers, aramid fibers and polymer fibers or a combination thereof.

[0008] Furthermore, the base layer is knitted from multifilament yarns by means of one or more loop-forming base guide bars in conjunction with the loop-forming base guide bar GB1, forming a warp-knit or weft insertion structure. The one or more loop-forming base guide bars are arranged on the loop-forming base guide bar in a motion mode with a yarn placement notation of 1-0 / 0-1 / / or 0-0 / 1-1 / / .

[0009] Furthermore, the elastic region is knitted from multifilament yarns by means of a second pair of jacquard bars in cooperation with the first pair of jacquard bars, forming a looped structure. The inelastic region is knitted from multifilament yarns by means of the second pair of jacquard bars in cooperation with the first pair of jacquard bars, forming a fine structure. The second pair of jacquard bars moves in cooperation with the first pair of jacquard bars in a movement mode with a yarn placement notation for knitting, which is generated by changes with a combination of any stitch number with four stitch distances of 0, 1, 2, and 3 as the basic offset unit.

[0010] A method for producing a partially elastic shoe material according to claim 1 comprises the following steps: Step S1: Knitting a base layer of the shoe material with a loop-forming ground bar GB1 made of multifilament yarns to form a chain stitch structure; Step S2: Knitting a jacquard layer for various types of shoe materials from multifilament yarns using the jacquard function of a first pair of jacquard bars, whereby a stitch structure must be knitted in the elastic region of the jacquard layer and a fine structuring must be knitted in the inelastic region of the jacquard layer; Step S3: Overlaying a spandex weft insertion area knitted with the jacquard bar using a weft insertion pattern guide bar, whereby the elasticity of the spandex and the deformable structural elasticity of the stitch structure in the stitch area of ​​the fabric create a partially elastic layer resulting from pattern guide bars.

[0011] Furthermore, in step S1, the loop-forming base guide bar GB1 moves in a movement mode with a yarn placement notation of 1-0 / 0-1 / / for knitting, and the base layer is knitted by one or more loop-forming base guide bars in cooperation with the loop-forming base guide bar from multifilament yarns to form a warp-knit or weft insertion structure. The one or more loop-forming base guide bars are arranged on the loop-forming base guide bar GB1 in a movement mode with a yarn placement notation of 1-0 / 0-1 / / or 0-0 / 1-1 / / .

[0012] Furthermore, in step S2, the elastic region is knitted from multifilament yarns by means of the jacquard function of the second pair of jacquard bars in cooperation with the first pair of jacquard bars, forming a stitch structure. The inelastic region is knitted from multifilament yarns by means of the second pair of jacquard bars in cooperation with the first pair of jacquard bars, forming a fine structure. The second pair of jacquard bars move in cooperation with the first pair of jacquard bars in a movement mode with a yarn placement notation for knitting, which is generated by changes with a combination of arbitrary stitch numbers with four stitch distances of 0, 1, 2, and 3 as the basic offset unit.

[0013] Furthermore, the fineness of the multifilament yarn is 70-300D, while the fineness of the spandex in the spandex weft insertion is 70-1400D.

[0014] The advantages of the present invention are as follows: The present invention provides a partially elastic shoe material and a manufacturing method that enables local elasticity in a specific area of ​​the shoe material, i.e., no elasticity in the inelastic area and good elasticity in the elastic area. The tightness of the shoe material is automatically adjusted locally, with the shoe material changing with the contraction and relaxation of the foot muscles to achieve a tighter fit and enhance performance in sports and fitness. Fig. 1 shows a simulation diagram of a shoe material according to the invention; Fig. 2 shows the structure of the shoe material according to the invention; Fig. Figure 3 shows the results of performance tests of a product manufactured by the process according to the invention.

[0015] 1. Jacquard layer, 2. Elastic area, 3. Inelastic area, 4. Partially elastic layer resulting from pattern bars.

[0016] The present invention is explained in more detail below with reference to the accompanying drawings.

[0017] In relation to Fig. 1 to Fig. 3, in one embodiment according to the present invention, a partially elastic shoe material is provided, characterized in that the shoe material comprises a base layer knitted by means of a loop-forming base guide bar GB1 from multifilament yarns to form a chain stitch structure, and a jacquard layer 1 overlying the base layer, wherein the jacquard layer 1 comprises an elastic region 2 knitted by means of a first pair of jacquard bars from multifilament yarns to form a looped structure, and an inelastic region knitted by means of the first pair of jacquard bars from multifilament yarns to form a fine structuring, wherein the loop-forming base guide bar GB1 moves in a movement mode with a yarn laying notation 1-0 / 0-1 / / for knitting, and wherein the first pair of jacquard bars moves in a movement mode with a yarn laying notation for knitting,which is generated by changes with a combination of any stitch numbers with four stitch distances of 0, 1, 2 and 3 as a basic offset unit; wherein a partially elastic layer 4 resulting from pattern guide bars is provided on the elastic region 2. Among them, the concrete examples of “yarn laying notation created by changes with a combination of any stitch numbers with four stitch distances of 0, 1, 2 and 3 as the basic offset unit” can be 0-0 / 1-1 / / , 1-1 / 2-2 / / , 2-2 / 3-3 / / , ... or 0-0 / 2-2 / / , 1-1 / 3-3 / / , 2-2 / 4-4 / / , ... or 0-1 / 2-1 / / , 1-2 / 3-2 / / , 2-3 / 4-3 / / , ... or 1-0 / 1-2 / / , 2-1 / 2-3 / / , 3-2 / 3-4 / / , ... or 0-1 / 3-2 / / , 1-2 / 4-3 / / , 2-3 / 5-4 / / , ... or 1-0 / 2-3 / / , 2-1 / 3-4 / / , 3-2 / 4-5 / / , ...

[0018] Further with regard to Fig. 1 to Fig. 3 In one embodiment of the present invention, the partially elastic layer 4 resulting from pattern guide bars is knitted by overlaying the stitch structure layer with a spandex weft insertion.

[0019] Further with regard to Fig. 1 to Fig. 3 In one embodiment of the present invention, the fineness of the multifilament yarn is 70-300D, while the fineness of the spandex in the spandex weft insertion is 70-1400D.

[0020] Further with regard to Fig. 1 to Fig. 3 In one embodiment of the present invention, the composition of the multifilament yarn is selected from one of nylon fibers, polyester fibers, vinylon fibers, acrylic fibers, synthetic fibers, polyethylene fibers, aramid fibers and polymer fibers or a combination thereof.

[0021] Further with regard to Fig. 1 to Fig. 3 In one embodiment of the present invention, the base layer is knitted from multifilament yarns by means of one or more loop-forming base guide bars in cooperation with the loop-forming base guide bar GB1, forming a warp-stitched or weft-inserted structure. The one or more loop-forming base guide bars are arranged on the loop-forming base guide bar in a movement mode with a yarn placement notation of 1-0 / 0-1 / / or 0-0 / 1-1 / / . The base layer is formed by means of a loop-forming base guide bar GB2 in cooperation with the loop-forming base guide bar GB1, so that the physical property of the warp is improved. These bars serve to improve the physical property. If the physical property of GB1 is sufficiently good, the GB2 bar can also be omitted.The one or more than one loop-forming base guide bars may be one, two, three or four loop-forming base guide bars.

[0022] Further with regard to Fig. 1 to Fig. 3, in one embodiment of the present invention, the elastic region 2 is knitted from multifilament yarns by means of a second pair of jacquard bars in cooperation with the first pair of jacquard bars, forming a loop structure. The inelastic region is knitted from multifilament yarns by means of the second pair of jacquard bars in cooperation with the first pair of jacquard bars, forming a fine structure. The second pair of jacquard bars move in cooperation with the first pair of jacquard bars in a movement mode with a yarn laying notation for knitting, which is generated by changes with a combination of arbitrary stitch numbers with four stitch distances of 0, 1, 2, and 3 as the basic offset unit. These bars serve to improve the physical properties.If the physical properties of the first pair of Jacquard bars are sufficiently good, the second pair of Jacquard bars can be omitted.

[0023] Further with regard to Fig. 1 to Fig. 3, in one embodiment according to the present invention, a method for producing a partially elastic shoe material according to claim 1 is provided. The method comprises the following steps: Step S1: Knitting a base layer of the shoe material by means of a loop-forming ground bar GB1 made of multifilament yarns to form a chain stitch structure; Step S2: Knitting a jacquard layer 1 for various types of shoe materials from multifilament yarns using the jacquard function of a first pair of jacquard bars, wherein a mesh structure must be knitted in the elastic region 2 of the jacquard layer 1 and a fine structuring must be knitted in the inelastic region of the jacquard layer 1; Step S3: Overlaying a spandex weft insertion on a mesh area knitted with the jacquard bar using a weft insertion pattern guide bar, whereby the elasticity of the spandex and the deformable structural elasticity of the mesh structure in the mesh area of ​​the fabric result in a partially elastic layer 4 resulting from pattern guide bars.

[0024] Further with regard to Fig. 1 to Fig. 3, in one embodiment of the present invention, in step S1, the loop-forming base guide bar GB1 further moves in a movement mode with a yarn placement notation of 1-0 / 0-1 / / for knitting, and the base layer is knitted from multifilament yarns by means of one or more loop-forming base guide bars in cooperation with the loop-forming base guide bar, forming a warp-knit or weft-insertion structure. The one or more loop-forming base guide bars are arranged on the loop-forming base guide bar GB1 in a movement mode with a yarn placement notation of 1-0 / 0-1 / / or 0-0 / 1-1 / / .

[0025] Further with regard to Fig. 1 to Fig. 3, in one embodiment of the present invention, in step S2, the elastic region 2 is further knitted from multifilament yarns by means of the jacquard function of the second pair of jacquard bars in cooperation with the first pair of jacquard bars, forming a stitch structure. The inelastic region is knitted from multifilament yarns by means of the second pair of jacquard bars in cooperation with the first pair of jacquard bars, forming a fine structure. The second pair of jacquard bars moves in cooperation with the first pair of jacquard bars in a movement mode with a yarn placement notation for knitting, which is generated by changes with a combination of arbitrary stitch numbers with four stitch distances of 0, 1, 2, and 3 as the basic offset unit.

[0026] Further with regard to Fig. 1 to Fig. 3 In one embodiment of the present invention, the fineness of the multifilament yarn is 70-300D, while the fineness of the spandex in the spandex weft insertion is 70-1400D. Example 1:

[0027] A single-bed multi-bar raschel machine is used, which is equipped with a loop-forming basic guide bar GB1, if necessary a loop-forming basic guide bar GB2, jacquard bars JB3 and JB4, weft insertion pattern guide bars PB7-10, PB15-17 and PB23-25 ​​and if necessary jacquard bars JB61 and JB62, whereby in the loop-forming ground guide bar GB1, which moves with a yarn laying notation of 1-0 / 0-1 / / to form a chain stitch, 100D multifilament yarn is used and the thread take-up in the loop-forming ground guide bar is full, the speed of the warp let-off is 1790 mm / lacquer, the yarn proportion is 21%, and the number of warp threads of the sectional warp beam is 520 × 6; in the loop-forming basic guide bar GB2, which moves with a yarn laying notation 1-0 / 0-1 / / to form a chain stitch or with a yarn laying notation 0-0 / 1-1 / / to form a weft insertion structure and serves to improve the physical properties, 100D multifilament yarn is used and the thread take-up in the loop-forming basic guide bar is full, the speed of the warp let-off is 1830 mm / lacquer; the yarn proportion is 21%; and the number of warp threads on the sectional warp beam is 520 × 6; and if the physical properties of GB1 are sufficiently good, the GB2 bar can be dispensed with; The physical properties of shoe materials are assessed based on the following criteria: 1. Warp thread tensile strength ≥ 8 N / mm, 2. Weft thread tensile strength ≥ 30 N, 3. Seam strength (warp thread) ≥ 5 N / mm, 4. Bursting strength ≥ 18 kgf / cm 2 ; For the jacquard bars JB3 and JB4, of which the jacquard bar JB3 moves with a yarn displacement notation of 0-1 / 2-1 / / , while the jacquard bar JB4 moves with a yarn displacement notation of 2-1 / 0-1 / / , 150D multifilament yarn is used and the thread take-up on the jacquard bars is full; the warp let-off speed is 2550 mm / lacquer; the yarn proportion is 25%; the warp thread count of the sectional warp beam is 260 × 12; using the warp knitting CAD software, the jacquard offset signal is drawn in the desired range and converted into an electronic file format for the machine; the jacquard needle is controlled by the jacquard signal so that a position offset of the needle takes place; after the needle position offset in the fine structuring area, the yarn laying notation is changed to JB3: 0-1 / 3-2 / / , JB4: 3-2 / 0-1 / / ;and after the position offset of the needle in the stitch structure area, the yarn laying notation is changed to JB3: 0-1 / 2-1 / 1-2 / 3-2 / 1-2 / 2-1 / / , JB4: 3-2 / 1-2 / 2-1 / 0-1 / 2-1 / 1-2 / / ; PB7-10, PB15-17, PB23-25, 420D spandex is used for the weft insertion pattern guide bars, and the thread take-up of the weft insertion pattern guide bars is full; the warp let-off mode of yarn frames is passive; the yarn content is 5%, and the number of yarn on the yarn frame is 90; and using the warp knitting CAD software, the pattern guide bar offset signal is drawn in the desired area and converted into an electronic file format for the machine, with the pattern guide bar being offset with a stitch distance of 9 in the stitch structure area and with a stitch distance of 1 in the fine structure area. For the jacquard bars JB61 and JB62, of which the jacquard bar JB61 moves with a yarn laying notation of 0-0 / 2-2 / / , while the jacquard bar JB62 moves with a yarn laying notation of 2-2 / 0-0 / / , 100D multifilament yarn is used; the warp let-off speed is 1180 mm / lacquer; using the warp knitting CAD software, the jacquard offset signal is drawn in the desired range and converted into an electronic file format for the machine; the jacquard needle is controlled by the jacquard signal so that a needle position offset takes place; after the needle position offset in the fine structuring area, the yarn laying notation is changed to JB61: 0-0 / 3-3 / / , JB62: 3-3 / 0-0 / / ; after the needle position offset in the stitch structure area, the yarn laying notation is changed to JB61: 0-0 / 2-2 / 1-1 / 3-3 / 1-1 / 2-2 / / , JB62: 3-3 / 1-1 / 2-2 / 0-0 / 2-2 / 1-1 / / ; these bars serve to improve the physical properties;Where the physical properties of JB3 and JB34 are sufficiently good, the bars JB61 and JB62 may be omitted; and the physical properties of shoe materials are determined using the above-mentioned assessment criteria.

[0028] In summary, the fabric according to the invention, as described in Fig.3, it exhibits good strength and toughness, as well as excellent breaking strength, tear resistance, bursting strength, flexural strength, and wear resistance. The flexural strength is up to 100,000 times. The test criteria include: tear strength - UATMM07 method; breaking strength and elongation at break - UATMM05 method; seam strength - UATMM09 method; bursting strength - UATMM10 method; Bally bending - UATMM16 method; and Martindale abrasion test - UATMM19-20 method. Local elasticity is enabled in a specific area of ​​the shoe material, allowing the tightness of the shoe material to be automatically adjusted locally. The shoe material changes with the contraction and relaxation of the foot muscles to achieve a tighter wrap and assist in sports and fitness.

[0029] Although the invention has been illustrated and described in detail by the preferred embodiments, the invention is nevertheless not limited by the disclosed examples and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention.

Claims

[1] Partially elastic shoe material, characterized bythat the shoe material comprises a base layer knitted by means of a loop-forming basic guide bar GB1 from multifilament yarns to form a chain stitch structure, and a jacquard layer overlying the base layer, wherein the jacquard layer comprises an elastic region knitted by means of a first pair of jacquard bars from multifilament yarns to form a loop structure, and an inelastic region knitted by means of the first pair of jacquard bars from multifilament yarns to form a fine structure, wherein the loop-forming basic guide bar GB1 moves in a movement mode with a yarn laying notation 1-0 / 0-1 / / for knitting, and the first pair of jacquard bars moves in a movement mode with a yarn laying notation for knitting which is achieved by changes with a combination of arbitrary stitch numbers with four stitch distances of 0, 1,2 and 3 is produced as a basic offset unit, and wherein a partially elastic layer resulting from pattern guide bars is located on the elastic region. [2] Partially elastic shoe material according to claim 1, characterized by that the partially elastic layer resulting from pattern guide bars is knitted by overlaying the mesh structure layer with a spandex weft insertion. [3] Partially elastic shoe material according to claim 2, characterized by that the fineness of the multifilament yarn is 70-300D, while the fineness of the spandex in the spandex weft insertion is 70-1400D. [4] Partially elastic shoe material according to claim 1, characterized by that the composition of the multifilament yarn is selected from one of nylon fibers, polyester fibers, vinylon fibers, acrylic fibers, synthetic fibers, polyethylene fibers, aramid fibers and polymer fibers or a combination thereof. [5] Partially elastic shoe material according to claim 1, characterized by that the base layer is knitted by means of one or more than one loop-forming basic guide bar in cooperation with the loop-forming basic guide bar GB1 from multifilament yarns to form a warp-knit or weft insertion structure, wherein the one or more than one loop-forming basic guide bar is arranged in a movement mode with a yarn laying notation 1-0 / 0-1 / / or 0-0 / 1-1 / / on the loop-forming basic guide bar. [6] Partially elastic shoe material according to claim 1, characterized byin that the elastic region is knitted from multifilament yarns by means of a second pair of jacquard bars in cooperation with the first pair of jacquard bars to form a stitch structure, and in that the inelastic region is knitted from multifilament yarns by means of the second pair of jacquard bars in cooperation with the first pair of jacquard bars to form a fine structure, wherein the second pair of jacquard bars moves in cooperation with the first pair of jacquard bars in a movement mode with a yarn laying notation for knitting which is generated by changes with a combination of arbitrary stitch numbers with four stitch distances of 0, 1, 2 and 3 as a basic offset unit.

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