Crease-resistant shape-retaining high-proportion China-hemp woven fabric

Abstract

The utility model discloses an anti-wrinkle shape-keeping high-proportion China-hemp woven fabric, a fabric body is formed by interweaving warp yarns with a high China-hemp proportion and weft yarns with a high China-hemp proportion, the warp yarns are China-hemp polyester staple fiber blended yarns, the weft yarns are China-hemp-wrapped T400 polyester filament yarn core-spun yarns, the weft yarns comprise core yarns and outer layers wrapped on the outer sides of the core yarns, and the outer layers are formed by interweaving warp yarns with a high China-hemp proportion and weft yarns with a high China-hemp proportion. The outer layer is composed of pure China hemp fibers, and the core yarn is T400 polyester filament double-strand doubling and twisting yarn. The high-proportion China-hemp casual fabric is resistant to wrinkles and stable in quality, the cloth texture, the hand feeling and the capillary effect of the high-proportion China-hemp casual fabric are close to the natural casual style of a 100% all-hemp fabric, moisture absorption and quick drying are achieved, the breathable and comfortable performance is good, and the high-proportion China-hemp casual fabric has the stable elasticity and the stable size and shape maintaining performance. In addition, compared with a fabric interwoven by hemp and chemical fiber filaments in the market, the color and appearance of the fabric are washable, new-keeping and shape-keeping properties are obviously improved, the snagging problem can be completely avoided, and the hand feeling style of the fabric is closer to the whole hemp texture and has no chemical fiber feeling.

Description

Technical Field

[0001] This utility model relates to a woven fabric, specifically a wrinkle-resistant and shape-preserving high-proportion hemp woven fabric. Background Technology

[0002] With the growing popularity of low-carbon and environmentally friendly lifestyles, hemp materials are being increasingly widely used in the textile and apparel industry, primarily due to their green and natural properties. They offer a cool, comfortable, breathable, and skin-friendly feel, along with excellent functional advantages such as natural antibacterial properties and UV protection. However, hemp fabrics also suffer from common problems such as unstable shrinkage, tearing after washing, easy wrinkling, and susceptibility to chafing and fading in dark colors. This is especially true for pure hemp or high-proportion hemp woven fabrics (i.e., hemp woven fabrics with a hemp content of 50% or more), which present numerous challenges and risks from development and design to mass production. Furthermore, consumers have expressed varying degrees of demand for wrinkle resistance and shape retention in hemp clothing during daily wear, necessitating further exploration and research. Currently, the industry mainly employs three technical approaches to improve the wrinkle resistance of hemp fabrics, all of which have certain shortcomings and deficiencies.

[0003] Both resin finishing and garment finishing processes can significantly improve wrinkle resistance, as linen and cotton are both natural cellulose fibers and can achieve wrinkle resistance through a combination of resin cross-linking and baking / pressing processes. However, linen cellulose molecules have a higher degree of crystallinity, resulting in a less than ideal reaction effect and a certain risk of formaldehyde residue. Linen also doesn't have the same smoothness as cotton, and the feel and style of linen fabrics treated with wrinkle-free finishing change drastically, lacking a natural, relaxed, and casual feel, making it unsuitable for casual brand positioning.

[0004] Other non-resin-based chemical finishing processes mainly improve fiber elasticity by forming a polymer film on the surface of the fabric fibers. The change in the feel and style of the fabric before and after finishing is not significant, but the overall wrinkle resistance is only slightly improved, almost negligible, and the wrinkle resistance stability is very poor, making it not resistant to multiple household washes.

[0005] Improvements in fabric structure and manufacturing processes, such as the addition of wrinkle-resistant layers and lamination techniques, have resulted in significant changes in fabric style, a heavier texture, and a substantial reduction in comfort and skin-friendliness. Additionally, some fabrics are made by interweaving pure linen yarn with polyester, nylon, and other synthetic filaments, which improves wrinkle resistance to some extent, but the feel and style differ significantly from pure linen fabrics, with a heavier synthetic feel and a higher risk of snagging. Furthermore, some fabrics are blends of linen and multi-component fibers wrapped with polyester filaments, resulting in a lower linen content in the finished yarn, greatly diminishing the linen feel and lacking the natural, dry touch and rugged, casual style of pure linen. Utility Model Content

[0006] In response to the combined problems of shrinkage, wrinkling, and poor shape retention of existing pure linen or high-proportion hemp woven fabrics, this utility model provides a high-proportion hemp woven fabric that is wrinkle-resistant, stable, washable, shape-retaining, comfortable, and whose style and feel are as close as possible to pure linen fabric.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a wrinkle-resistant and shape-preserving high-proportion hemp woven fabric, comprising a fabric body, wherein the fabric body is woven from warp yarns and weft yarns with a high hemp proportion, wherein the warp yarns are hemp-polyester staple fiber blended yarns, and the weft yarns are hemp-wrapped T400 polyester filament core-spun yarns, wherein the weft yarns include a core yarn and an outer layer wrapped around the outside of the core yarn, wherein the outer layer is composed of pure hemp fibers, and the core yarn is a T400 polyester filament double-ply twisted yarn.

[0008] This utility model relates to a high-proportion hemp woven fabric, employing both warp and weft yarns with a high hemp ratio. Both warp and weft yarns exhibit a distinct coarse-fine texture similar to pure hemp yarn, and possess excellent bending recovery properties. While maintaining the fabric's natural, casual hemp-like feel, its wrinkle resistance is significantly improved, ensuring it remains fresh and retains its shape after washing. It also offers comfortable elasticity, greatly enhancing the consumer's wearing experience. Specifically, the warp yarns are made of a hemp-polyester staple fiber blend, which improves the fabric's shrinkage stability during production. The weft yarns are made of hemp-wrapped T400 polyester filament core-spun yarn. T400 polyester filament has good elasticity and an irregular cross-sectional structure. Furthermore, its double-strand core structure not only provides more stable elasticity and better strength indicators but also further enhances the fabric's moisture absorption and quick-drying properties, improving wearing comfort.

[0009] Compared to fabrics made of hemp and synthetic filaments on the market, the high-proportion hemp woven fabric of this invention has significantly improved color, appearance, washability, and shape retention. It can completely avoid snagging problems, and the fabric's feel and style are closer to that of pure hemp, without any synthetic fiber feel.

[0010] Preferably, the warp yarn has a count of 24-50 Nm / L, the outer layer of the weft yarn has a count of 24-50 Nm / L, and the core yarn of the weft yarn has a specification of 30D / 2-50D / 2.

[0011] Preferably, the fabric body has a plain or twill weave structure with a warp density of 86-60 threads / inch and a weft density of 62-50 threads / inch.

[0012] Preferably, the weight of the fabric body is 120-180 g / m². 2 .

[0013] This invention effectively solves the technical problem of the incompatibility between ordinary high-proportion hemp fabrics in terms of shrinkage and wrinkleability, breathability and comfort, and a casual, natural hemp feel. Compared with existing technologies, this invention has the following advantages: This wrinkle-resistant, shape-retaining high-proportion hemp woven fabric is a wrinkle-resistant, shape-retaining, and high-quality casual hemp fabric. Its surface texture, feel, and nap are close to the natural casual style of 100% pure hemp fabric. It is quick-drying, breathable, and comfortable, and has stable elasticity and dimensional stability. Furthermore, compared to fabrics on the market that are a blend of hemp and synthetic filaments, this high-proportion hemp woven fabric significantly improves color, appearance, washability, and shape retention, completely avoiding snagging issues. The fabric's feel and style are closer to pure hemp, without any synthetic feel. This wrinkle-resistant, shape-retaining high-proportion hemp woven fabric can be used for men's and women's casual shirts, jackets, trousers, as well as women's dresses and other casual fashion items. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the fabric structure and warp and weft interlacing effect in the embodiment;

[0015] Figure 2 This is a simplified schematic diagram of the weft yarn structure in the embodiment;

[0016] The specific labels in the diagram are as follows: 1-warp yarn, 2-weft yarn, 21-core yarn, 22-outer layer. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] The embodiment includes a wrinkle-resistant and shape-retaining high-proportion hemp woven fabric with a weight of 120-180 g / m². 2 The fabric body, as shown in the figure, is woven from warp yarns 1 and weft yarns 2 with a high hemp ratio. Warp yarn 1 is a blended yarn of hemp and polyester staple fiber, and weft yarn 2 is a core-spun yarn of hemp wrapped with T400 polyester filament. Weft yarn 2 includes a core filament 21 and an outer layer 22 wrapped around the outside of the core filament 21. The outer layer 22 is composed of pure hemp fiber, and the core filament 21 is a double-ply twisted yarn of T400 polyester filament.

[0019] In this embodiment, the count of warp yarn 1 is 24-50 Nm / 1, and the blending ratio of hemp / polyester staple fiber is 50 / 50-70 / 30; the count of the outer layer 22 of weft yarn 2 is 24-50 Nm / 1, and the specification of the core yarn 21 of weft yarn 2 is 30D / 2-50D / 2.

[0020] In this embodiment, the fabric body has a plain weave structure with a warp density of 86-60 threads / inch and a weft density of 62-50 threads / inch.

[0021] Using existing hemp fabrics produced by different technical routes as comparative examples 1 to 5, the dimensional stability and hand feel of the fabrics in the example and comparative examples 1 to 5 were tested. The specific comparative test results are shown in Table 1.

[0022] The fabric tested according to the GB / T 2660 shirt standard is shown in Table 2.

[0023] Table 1: Comparative test results of the fabrics in Examples 1-5 and Comparative Examples 1-5

[0024]

[0025] Table 2: Test results data of the fabrics in the examples (GB / T 2660 Shirts)

[0026]

[0027] As shown in Table 1, the high-proportion hemp woven fabric of this utility model, while maintaining a similar feel, appearance, and casual style to pure hemp fabric and keeping the weight unchanged, can ensure the natural antibacterial properties of hemp fabric, while significantly upgrading its wrinkle resistance. The appearance smoothness after 1 and 5 washes can reach level 3, the warp shrinkage rate of the fabric is also improved from -3.6% of pure hemp fabric (national standard requires ≥-3.5%) to -0.7%, the twist rate is improved to within 1%, and the dimensional stability is greatly enhanced, which can greatly improve the daily wearing experience of consumers and meet the demands of the consumer market.

Claims

1. A wrinkle-resistant and shape-retaining high-proportion hemp woven fabric, characterized in that, The fabric body comprises a warp yarn with a hemp content of more than 50% and a weft yarn with a hemp content of more than 50%. The warp yarn is a hemp-polyester staple fiber blended yarn, and the weft yarn is a hemp-wrapped T400 polyester filament core-spun yarn. The weft yarn includes a core yarn and an outer layer wrapped around the outside of the core yarn. The outer layer is composed of pure hemp fibers, and the core yarn is a double-ply twisted T400 polyester filament yarn.

2. The wrinkle-resistant and shape-preserving high-ratio hemp woven fabric according to claim 1, characterized in that, The warp yarn has a count of 24-50 Nm / L, the outer layer of the weft yarn has a count of 24-50 Nm / L, and the core yarn of the weft yarn has a specification of 30D / 2-50D / 2.

3. The wrinkle-resistant and shape-preserving high-ratio hemp woven fabric according to claim 1, characterized in that, The fabric itself has a plain or twill weave structure with a warp density of 86-60 threads / inch and a weft density of 62-50 threads / inch.

4. A wrinkle-resistant, shape-preserving, high-ratio hemp woven fabric according to any one of claims 1-3, characterized in that, The fabric body has a weight of 120-180 g / m². 2 .

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