A three-dimensional lattice structure shoe use woven fabric and shoe product

Abstract

The utility model provides a kind of shoe with three-dimensional square structure's weaving fabric and shoe product, it is interwoven by warp yarn system and weft yarn system, and weft yarn system includes first weft yarn and second weft yarn, wherein: warp yarn is polyester twisted silk with 650-720 twist / meter of twist degree;First weft yarn is fine denier polyester twisted silk;Second weft yarn is core-spun yarn of polyester and spandex, and first weft yarn and second weft yarn are arranged along weft direction alternately and cyclically.The utility model is combined by high twist warp yarn, fine denier weft yarn and high-elasticity core-spun weft yarn, interwoven in plain weave by grouping mode, and then after finishing, spandex is shrunk, so as to form lasting, full three-dimensional square effect in coordination.The fabric has high breaking strength, excellent elasticity and good air permeability, and its preparation method is reliable, especially suitable for shoe upper material of sports shoes, casual shoes and other shoe products.

Description

Technical Field

[0001] This utility model belongs to the field of textile technology, specifically relating to a three-dimensional grid structure woven fabric for shoes and footwear products using the fabric, particularly a woven fabric for shoes with a significant three-dimensional visual effect, excellent mechanical properties and comfortable elasticity, and footwear products made from the fabric. Background Technology

[0002] Woven fabrics are made by interlacing warp and weft yarns on a loom according to a specific pattern. Due to their stable structure, high strength, good abrasion resistance, and diverse styles, they are widely used in clothing, home textiles, and industrial textiles. In recent years, with the upgrading of consumption and the growth of personalized demands, woven fabrics have been increasingly used in the footwear and apparel industry, especially in sports shoes, casual shoes, and fashionable sneakers.

[0003] For footwear uppers, the fabrics are required to not only provide basic support, protection, and durability, but also to meet higher standards in terms of aesthetics, lightweight design, breathability, functionality, and comfort. Fabrics with three-dimensional textures and unique visual effects effectively enhance the overall design, technological feel, and added value of footwear, becoming an industry trend.

[0004] Currently, most woven checkered fabrics used for shoe uppers on the market are made of the same or similar warp and weft yarns and relatively simple weave structures (such as plain weave, twill weave, or square plain weave). Although these traditional fabrics have a stable structure, the surface is usually quite flat, lacking a strong three-dimensional sense and tactile texture, making it difficult to meet the current market's design demands for high-end and personalized footwear.

[0005] In order to create the desired three-dimensional effect, some attempts have been made in existing technologies.

[0006] A common method is to utilize differences in the physical properties of yarns, such as using yarns of significantly different thicknesses arranged alternately. CN219010582U discloses a checkered woven fabric in which both warp and weft yarns are made of nylon filaments, woven according to a checkered pattern, with the weft yarns consisting of one single yarn and one ply yarn arranged alternately in a 19:3 ratio. However, this method produces a limited and stiff three-dimensional effect, lacking a natural, full, and lasting texture. The fundamental reason is that this three-dimensional effect relies solely on the physical contrast in yarn thickness, resulting in a static and superficial texture. During the finishing process after weaving, and during long-term wear and washing, the lack of synergistic three-dimensional shaping and retention effects from the fabric structure itself and the elastic shrinkage of the yarns easily leads to the loss, weakening, or irregularity of the three-dimensional effect.

[0007] Another approach to creating a three-dimensional effect is to use elastic yarns. However, simply adding elastic yarns without a sophisticated design that coordinates them with rigid yarns and the fabric structure often results in either excessive elasticity leading to a loose fabric structure and poor shape retention, or the elasticity being constrained by the structure and unable to be fully expressed, thus failing to form a stable and regular three-dimensional pattern.

[0008] Therefore, there is a need in this field for an innovative solution that can enable woven fabrics to exhibit a durable, natural, strong and regular 3D grid structure through systematic material combination and structural design, while ensuring the high strength, moderate elasticity, excellent durability and comfort necessary for the fabric as a footwear material. Utility Model Content

[0009] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and provide a three-dimensional square structure woven fabric for shoes. Through specific yarn selection, weave structure design and yarn configuration, this fabric can present a clear, full and durable three-dimensional square effect, while also having high tensile strength, moderate elasticity and good breathability, making it particularly suitable for the manufacture of high-performance footwear.

[0010] Another objective of this invention is to provide footwear products made from the above-mentioned three-dimensional grid structure woven fabric for footwear.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] This utility model provides a three-dimensional checkered structure woven fabric for shoes, which is woven from a warp yarn system and a weft yarn system. The weft yarn system includes a first weft yarn and a second weft yarn.

[0013] The warp yarn is polyester twisted yarn with a twist of 650-720 twists / meter;

[0014] The first weft yarn is fine denier twisted polyester yarn;

[0015] The second weft yarn is a core-spun yarn of polyester and spandex.

[0016] The first weft yarn and the second weft yarn are arranged alternately and cyclically along the weft direction.

[0017] According to the woven fabric for shoes provided by this utility model, the warp yarn is made of polyester twisted yarn with a twist controlled in the high twist range of 650-720 twists / meter. Its high twist gives the warp yarn higher stiffness and strength, helping to form clear, crisp longitudinal lines, which is the foundation for the grid framework. The first weft yarn is fine denier polyester twisted yarn, whose main function is to form relatively flat or concave areas in the grid, and to provide basic structural strength and coverage. The second weft yarn is a core-spun yarn formed by polyester fibers and spandex filaments. This yarn is key to forming a three-dimensional raised effect, with the spandex core filament providing strong elastic shrinkage force. The fabric of this utility model, through a specific combination of high-twist warp yarns, fine denier weft yarns, and highly elastic core-spun weft yarns, combined with a unique yarn configuration and plain weave structure, can present a clear, full, and durable three-dimensional grid effect.

[0018] According to the woven fabric for shoes provided by this utility model, in some preferred embodiments, the first weft yarn is arranged in groups of A, and the second weft yarn is arranged in groups of B, wherein A is an integer not less than 2 (such as 2, 3, 4, 5), B is an integer not less than 1 (such as 1, 2), and the value of A is greater than the value of B. Preferably, the first weft yarn is arranged in groups of 3-5; and the second weft yarn is arranged in groups of 1-2.

[0019] Furthermore, the warp yarns are arranged in groups of N, where N is an integer not less than 4, and preferably 6-10. This grouping method, combined with the weft yarn grouping, jointly defines the size of a single three-dimensional grid unit.

[0020] More importantly, within each local area consisting of N warp yarns and the currently inserted weft yarn, the warp and weft yarns interweave in a plain weave structure. Plain weave has the most interlacing points and the tightest structure of all weave structures, which provides the fabric of this invention with extremely high structural stability and mechanical strength, preventing structural distortion caused by the shrinkage of elastic yarns, and ensuring the regularity and durability of the three-dimensional grid pattern.

[0021] Regarding the fineness (denier):

[0022] The fineness of the warp yarn is preferably 80-120D (denier). For example, 100D is a preferred option that balances strength and fineness.

[0023] The fineness of the first weft yarn is preferably 150-300D, and its twist is preferably 200-350 twists / meter. Yarns within this range can form an effective contrast in thickness with the second weft yarn while maintaining sufficient softness.

[0024] The second weft yarn is preferably formed by wrapping and winding 70-80D×2 polyester fibers (i.e., two 70-80 denier polyester fibers combined) with 180-220D spandex filaments to form a core-spun yarn. The 210D spandex filaments provide ample and long-lasting elastic recovery.

[0025] Through the synergistic design of the above-mentioned raw materials and structure, the resulting fabric exhibits excellent comprehensive performance. In a preferred embodiment of this invention, the areal density of the fabric can be controlled between 190-230 g / m². 2 This achieves a balance between lightweight and high performance. The fabric has a lateral elastic elongation of 30%-40%, providing excellent wearing comfort and a snug fit.

[0026] In some embodiments of this utility model, the preparation method of the three-dimensional grid structure woven fabric for shoes may include the following steps:

[0027] S1: Provide the warp yarn, the first weft yarn, and the second weft yarn;

[0028] S2: On a shuttle loom, weft yarns are fed in in an alternating cycle of the first and second weft yarns; warp yarns are fed in so that the warp yarns and the fed weft yarns interweave in a plain weave pattern to form a greige fabric.

[0029] S3: The fabric is finished by a process including relaxation pre-shrinking and high-temperature setting, which causes the spandex in the second weft yarn to shrink to form a three-dimensional grid structure.

[0030] Preferably, after step S1 and before step S2, the method further includes a step of dyeing the outer polyester covering the warp yarn, the first weft yarn, and / or the second weft yarn. The dyeing step typically includes:

[0031] S1a) Pretreatment of yarn, including desizing, scouring and bleaching;

[0032] S1b) The yarn is placed in a dye bath containing disperse dye and heated for dyeing;

[0033] S1c) Post-treatment of dyed yarn, including washing, soaping, color fixing and drying.

[0034] In this dyeing step, the outer polyester yarns of the warp, first weft, and / or second weft can be dyed simultaneously or separately. Dyeing before weaving (yarn-dyed fabric) helps to obtain more vibrant colors and clearer grid pattern layers.

[0035] In a preferred embodiment of this utility model, step S2 includes: feeding weft yarns in an alternating pattern, with the first weft yarn A as a group and the second weft yarn B as a group; simultaneously, feeding warp yarns in groups of N, so that the warp yarns in each group interweave with the fed weft yarns in a plain weave pattern to form a grey fabric, wherein A is an integer not less than 2, B is an integer not less than 1, and A is greater than B; preferably, N is an integer not less than 4.

[0036] Preferably, the first weft yarn is grouped into sets of 3-5 yarns; the second weft yarn is grouped into sets of 1-2 yarns; preferably, N is an integer from 6 to 10.

[0037] In a preferred embodiment of this invention, in step S3, the temperature of the high-temperature setting treatment is 170-185℃. During this process, the spandex filaments shrink dramatically, strongly pulling the warp yarns interwoven with them and the surrounding first weft yarns, causing them to bend and arch, thereby pulling the area where the second weft yarns are located upwards to form a stable and full raised structure. The area composed of multiple first weft yarns is relatively concave, ultimately forming a clear three-dimensional grid.

[0038] On the other hand, this utility model also provides a footwear product, the upper of which is at least partially made of the aforementioned three-dimensional checkered woven fabric. This footwear product can be any type of footwear that requires a combination of aesthetics, performance, and comfort, such as athletic shoes, casual shoes, canvas shoes, and hiking boots.

[0039] Compared with the prior art, the three-dimensional grid structure woven fabric for shoes provided by this utility model has the following significant advantages:

[0040] 1. Excellent 3D stereoscopic effect

[0041] This invention utilizes multiple contrast mechanisms to create a three-dimensional grid. Firstly, it employs yarn contrast, with the coarser second weft yarn (core-spun yarn) contrasting sharply with the finer first weft yarn, resulting in raised horizontal lines on the fabric surface. Secondly, it leverages elastic shrinkage differences: the spandex core yarn in the second weft yarn imparts extremely high elasticity. During fabric finishing and post-processing (such as high-temperature setting), the second weft yarn shrinks significantly more than both the warp and weft yarns, pulling the surrounding fabric upwards and creating a strong longitudinal convex-concave feel, greatly enhancing the three-dimensional effect of the grid unit. Furthermore, this invention cleverly utilizes optical effects; the twisted warp yarns and the specific plain weave structure reflect light differently, further enhancing the visual depth.

[0042] 2. Excellent mechanical properties

[0043] The warp and weft yarns used in this invention are mainly composed of high-strength polyester, and the fabric is based on a tightly woven plain weave, ensuring high tensile strength and abrasion resistance, meeting the requirements of frequent bending and friction in shoe uppers. Furthermore, the plain weave has the most interlacing points, resulting in a dense fabric structure, dimensional stability, and resistance to deformation.

[0044] 3. Good comfort

[0045] The spandex core-spun yarn in the second weft of this invention provides good lateral elasticity to the fabric, allowing the upper to better conform to the foot, providing a pressure-free wrapping feel and improving wearing comfort. Although the structure is tight, the formation of the three-dimensional grid structure actually increases air circulation channels in the concave and convex areas, avoiding the drawback of plain weave fabrics being too dense.

[0046] 4. The process is reliable and easy to promote.

[0047] The raw materials used in this invention are all common textile materials, and the weaving equipment is a conventional shuttle loom. No major modifications to existing equipment are required, the production process is stable and reliable, and it is easy to achieve large-scale industrial production. Attached Figure Description

[0048] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings, wherein:

[0049] Figure 1 A schematic diagram of the planar structure of the three-dimensional grid structure woven fabric for shoes provided by this utility model. Detailed Implementation

[0050] The present invention will be further described in detail below with reference to specific embodiments. The embodiments given are only for illustrating the present invention and are not intended to limit the scope of the present invention.

[0051] Example 1

[0052] Reference Figure 1 The present invention relates to the preparation of a three-dimensional grid structure woven fabric for shoes.

[0053] 1. Raw material preparation:

[0054] Warp 3: Select 100D / 144F semi-dull polyester filament, and twist it to 680 twists / meter using a twisting machine.

[0055] First weft yarn 2: Select 200D / 96F fine denier twisted polyester yarn with a twist of 280 twists / meter.

[0056] Second weft yarn 1: Core-spun yarn is selected. Its core yarn is 210D spandex (Lycra), and the outer fiber is two 75D / 36F polyester filaments twisted together. The final specification of this core-spun yarn is approximately 75D / 2×210D.

[0057] 2. Weaving:

[0058] The weaving is done using an electronic jacquard loom.

[0059] Weft yarn arrangement: The first weft yarn is grouped into groups of 3, and the second weft yarn is grouped into groups of 1. The weft yarns are added in a cyclical order of "3 first weft yarns + 1 second weft yarn".

[0060] Warp arrangement: Warp yarns are arranged in groups of 8.

[0061] Organizational structure: The 8 warp yarns in each group are interwoven with the weft yarns in a plain weave, that is, the warp yarns interweave with the weft yarns in a 1:1 pattern.

[0062] 3. Post-processing:

[0063] After the woven fabric comes off the machine, the following finishing processes are performed:

[0064] Relaxation pre-shrinkage: The fabric is steamed under no-tension conditions to allow the spandex in the second weft yarn to fully shrink.

[0065] High-temperature setting: The setting process is carried out at a temperature of 170-185℃. During this process, the spandex shrinks dramatically again, causing the surrounding warp and first weft yarns to bend, thereby pulling the area containing the second weft yarn upward to form a stable raised structure. The area formed by the first weft yarn, on the other hand, is relatively concave.

[0066] Figure 1 This is a schematic diagram of the planar structure of the three-dimensional square structure woven fabric for shoes prepared in this embodiment. It can be seen that in the row where the second weft yarn 1 is located, due to the shrinkage effect, it forms a raised part together with the warp yarn 3, while the area formed by the first weft yarn 2 forms a concave part, thereby forming a clear three-dimensional square pattern.

[0067] Test methods and results

[0068] 1. Appearance

[0069] Visual inspection revealed that the fabric surface exhibited a highly regular and striking three-dimensional checkered effect. The horizontal lines centered on the second weft yarn were noticeably raised, with a full tactile feel; the area dominated by the first weft yarn was relatively flat and concave. The vertical lines, formed by groups of eight warp yarns, were slightly raised and interwoven with the horizontal raised lines, creating a clear 3D checkered pattern.

[0070] 2. Areal density

[0071] According to the standard method of GB / T 4669-2008 "Determination of mass per unit length and mass per unit area of ​​woven fabrics", the areal density was measured to be approximately 210 g / m³. 2 The fabric is of moderate weight, making it suitable for shoes in spring, summer, and autumn.

[0072] 3. Elasticity:

[0073] According to GB / T 3923.1-2013 "Textiles - Tensile Properties of Fabrics" Part 1: Determination of Breaking Strength and Elongation at Break (Strip Method), the transverse elastic elongation of the fabric can reach 35%. It has excellent recovery after the release of external force and small permanent deformation.

[0074] 4. Strength:

[0075] According to GB / T 3923.1-2013 "Textiles - Tensile Properties of Fabrics" Part 1: Determination of Breaking Strength and Elongation at Break (Strip Method), the warp and weft breaking strengths of the fabric were both measured to exceed 800 N. This far exceeds the standard for ordinary shoe upper fabrics (usually requiring >400 N), demonstrating excellent durability.

[0076] Example 2

[0077] This embodiment prepares the three-dimensional checkered structure woven fabric for shoes according to a similar method to Embodiment 1, the difference being that the yarn parameters are as follows:

[0078] Warp yarn 3: 150D polyester twisted yarn with a twist of 700 twists / meter.

[0079] First weft yarn 2: 150D polyester twisted yarn with a twist of 350 twists / meter.

[0080] Second weft yarn 1: Selected core-spun yarn of 50D / 1 polyester and 140D spandex.

[0081] Weft yarn arrangement: The first weft yarn is arranged in groups of 4, and the second weft yarn is arranged in groups of 1, and the cycle continues.

[0082] Warp arrangement: Warp yarns are arranged in groups of 6.

[0083] The resulting fabric has larger three-dimensional square units and a slightly softer feel, but it still has excellent three-dimensional visual effects and good lateral elasticity. The measured lateral elastic elongation is about 32%, and the warp and weft breaking strength both exceed 800 N.

[0084] Comparative Example 1

[0085] The conventional checkered fabric weaving method was adopted: both warp and weft yarns were made of 150D polyester filament (untwisted), and the weft yarns were arranged alternately with one thick (300D) and one thin (75D) yarn, and the weave structure was plain weave. After weaving, the fabric was finished under the same conditions as in Example 1.

[0086] Results: Only a slight unevenness due to the varying thickness of the yarns can be observed on the fabric surface, and the three-dimensional effect is far less obvious and full than that of the fabrics described in Embodiments 1 and 2 of this utility model; the hand feel is stiff, the transverse elastic elongation is <15%, and the warp and weft breaking strength is about 650 N.

[0087] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and concept of this utility model, should be included within the scope of protection of this utility model. For example, the polyester fiber can be replaced with other high-performance synthetic fibers such as nylon; the spandex can be replaced with other high-elasticity fibers; the plain weave can be replaced with a variant of other basic weaves (such as a double plain weave); the number of weft and warp yarns can be adjusted within a certain range (e.g., 2-5 weft yarns per group, 1-2 weft yarns per group, and 6-10 warp yarns per group), etc. These variations all fall within the scope of protection claimed by this utility model.

Claims

1. A three-dimensional checkered structure woven fabric for shoes, woven from a warp yarn system and a weft yarn system, wherein the weft yarn system includes a first weft yarn and a second weft yarn, characterized in that: The warp yarn is polyester twisted yarn with a twist of 650-720 twists / meter; The first weft yarn is fine denier twisted polyester yarn; The second weft yarn is a core-spun yarn of polyester and spandex. The first weft yarn and the second weft yarn are arranged alternately and cyclically along the weft direction.

2. The woven shoe fabric with a three-dimensional grid structure according to claim 1, characterized in that, The first weft yarn is grouped into A groups, and the second weft yarn is grouped into B groups, where A is an integer not less than 2, B is an integer not less than 1, and A is greater than B.

3. The woven shoe fabric with a three-dimensional grid structure according to claim 2, characterized in that, The first weft yarn is grouped into sets of 3-5 yarns; the second weft yarn is grouped into sets of 1-2 yarns.

4. The woven shoe fabric with a three-dimensional grid structure according to claim 1, characterized in that, The warp yarns are grouped into N groups, where N is an integer not less than 4.

5. The woven shoe fabric with a three-dimensional grid structure according to claim 4, characterized in that, The warp yarns are arranged in groups of 6-10.

6. The woven shoe fabric with a three-dimensional grid structure according to any one of claims 2 to 5, characterized in that, The warp and weft yarns within each group are interwoven in a plain weave structure.

7. The woven shoe fabric with a three-dimensional grid structure according to claim 1, characterized in that, The fineness of the warp yarn is 80-120D; The fineness of the first weft yarn is 150-300D, and the twist is 200-350 twists / meter; The second weft yarn is a core-spun yarn formed by two combined 70-80D polyester fibers and 180-220D spandex filaments.

8. The woven shoe fabric with a three-dimensional grid structure according to claim 1, characterized in that, The areal density of the fabric is 190-230 g / m³. 2 .

9. The woven shoe fabric with a three-dimensional grid structure according to claim 1, characterized in that, The transverse elastic elongation of the fabric is 30%-40%.

10. A footwear product, characterized in that, The upper is made of at least part of a woven fabric for footwear with a three-dimensional grid structure as described in any one of claims 1 to 6.

Images