Novel elastic yarn and fabric thereof

Abstract

The utility model discloses a novel elastic yarn and a fabric thereof, which belong to the field of textile, and comprise bamboo fiber filaments and elastic fibers as yarn cores, and hollow chinlon wound on the surfaces of the bamboo fiber filaments and the elastic fibers, the hollow chinlon winds the bamboo fiber filaments and the elastic fibers back and forth in an 8 shape to form a composite core yarn, the surface of the composite core wire is coated with a natural cellulose fiber coating layer. The yarn has good structural stability, the yarn core can be prevented from displacing in the using process, the hollow structure provides a buffering effect, and the restraining effect of the bamboo fiber filaments is combined, so that the elastic fibers are prevented from being excessively stretched; the natural cellulose fiber coating layer on the outer layer is good in moisture absorption, the hollow chinlon can utilize a hollow structure to assist in moisture conduction, the bamboo fiber filaments also have good moisture absorption and air permeability, the three parts are matched to avoid accumulation of excessive moisture in the shallow layer of the yarn, transfer of the moisture locally absorbed by the yarn in the length direction of the yarn can be accelerated, and stuffiness can be reduced.

Description

Technical Field

[0001] This utility model relates to a novel elastic yarn and its fabric, belonging to the textile field. Background Technology

[0002] Since its introduction to China, denim clothing has seen a gradual increase in market share. Traditional denim clothing is made of cotton and linen fibers, known for its durability. To meet growing consumer demand, advancements in production technology have led to the emergence of functional denim clothing made from various functional fibers. As the casual appeal of denim clothing has become more apparent, stretch denim has become the mainstream product. Most conventional stretch denim fabrics are woven from elastic yarns with a core-spun yarn structure. Spandex core-spun yarn, using spandex as the core, is the primary yarn used in producing stretch denim. However, spandex has relatively low strength and is prone to breakage after excessive stretching during use. To meet the elasticity required for sports, the industry has introduced T400 fiber as the core. Sportswear needs elasticity, but it also needs to address the issue of sweating during exercise. T400 fiber is a hydrophobic synthetic fiber, which doesn't absorb moisture effectively when the body sweats heavily; spandex also has poor moisture absorption, making it difficult for sweat or moisture to be absorbed. Both of these synthetic fibers can easily create a stuffy feeling. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a new type of elastic yarn and its fabric, which can reduce the stuffiness of fabrics woven from elastic yarn.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] In a first aspect, this application provides a novel elastic yarn, comprising bamboo fiber filaments and elastic fibers as the yarn core, and hollow nylon wound around the surface of the bamboo fiber filaments and the elastic fibers, wherein the hollow nylon is wound back and forth in a figure-eight pattern around the bamboo fiber filaments and the elastic fibers to form a composite core yarn, and the surface of the composite core yarn is covered with a natural cellulose fiber coating layer.

[0006] The novel elastic yarn provided in this application uses hollow nylon “8”-shaped winding of bamboo fiber filaments and elastic fibers, which increases the overall performance and structural stability of the yarn and prevents the yarn core from shifting during use. The hollow structure of the nylon provides a cushioning effect, and the parallel bamboo fiber filaments restrain the stretching of the elastic fibers, which helps to prevent the elastic fibers from being overstretched and reduces the possibility of breakage. The outer natural cellulose fiber coating layer has good moisture absorption and can quickly absorb the sweat emitted by the human body. The hollow nylon in the second outermost layer can use its hollow structure to assist in moisture wicking, and the bamboo fiber filaments in the center also have good moisture absorption, which can prevent excessive moisture from accumulating in the shallow layer of the yarn. The combination of the natural cellulose fiber coating layer, hollow nylon, and bamboo fiber filaments helps to accelerate the transfer of moisture absorbed locally by the yarn along the length of the yarn, which can reduce the feeling of stuffiness.

[0007] Furthermore, the bamboo fiber filaments are thicker than the elastic fibers.

[0008] The thicker bamboo fiber filaments can better exert their restraining effect on the elastic fibers in the yarn core structure. When the yarn is stretched, the thicker bamboo fiber filaments can share more of the tension, further inhibiting the elastic fibers from being overstretched, making the overall tensile performance of the yarn more stable. At the same time, it also helps to maintain the stability of the yarn structure and reduce the possibility of yarn structure deformation caused by excessive stretching of elastic fibers.

[0009] Furthermore, the elastic fiber is 20D spandex.

[0010] 20D spandex, as an elastic fiber, provides suitable elasticity to the yarn, meeting the elasticity requirements of elastic clothing and enabling the garments made from it to adapt to the stretching of the human body during movement, making them more comfortable to wear.

[0011] Furthermore, the denier of the bamboo fiber filament is 75D.

[0012] The combination of 75D bamboo fiber filaments and 20D spandex ensures that the yarn has a certain degree of elasticity. Due to the relatively suitable thickness of the bamboo fiber filaments, they can better cooperate with the spandex. In the yarn core structure, the bamboo fiber filaments play a role in restraining the stretching of the spandex and maintaining the stability of the yarn structure. The thickness of the bamboo fiber filaments provides good moisture absorption and breathability to the deep layers of the yarn. It can also effectively exert the antibacterial effect of the natural antibacterial components (bamboo quinone) in the bamboo fiber filaments, so that bacteria are not easily generated even after the yarn absorbs sweat deep inside.

[0013] Furthermore, the denier of the hollow nylon is 40D~70D.

[0014] Hollow nylon in this denier range, when wound with bamboo fiber filaments and elastic fibers to form a composite core, possesses a suitable thickness, providing sufficient structural support to ensure the overall performance and stability of the yarn. The hollow structure provided by this denier range effectively buffers external forces on the yarn core, reducing the risk of elastic fiber breakage, and also plays a good role in assisting moisture wicking. Combined with a natural cellulose fiber coating layer and bamboo fiber filaments, it optimizes the yarn's moisture absorption and wicking properties, reducing stuffiness.

[0015] Most preferably, the hollow nylon has a denier of 52D.

[0016] Furthermore, the natural cellulose fiber coating layer includes cotton and hemp threads wound in the same direction on the composite core.

[0017] Cotton and linen threads are wound in the same direction around the surface of the composite core yarn to form a natural cellulose fiber coating layer, which increases the moisture absorption area and performance of the natural cellulose fiber coating layer. The different properties of cotton and linen threads complement each other, making them more efficient at absorbing sweat. The structure of the two threads being wound in the same direction creates a uniform moisture-absorbing structure on the yarn surface, which is conducive to the even and rapid absorption of sweat, further reducing stuffiness. In addition, the unidirectional winding provides a good hand feel.

[0018] Furthermore, the cotton thread and the hemp thread are of the same thickness.

[0019] The uniform thickness of the cotton and linen yarns ensures a more even wrapping of the natural cellulose fiber coating on the composite core, guaranteeing consistent moisture absorption across all parts during the absorption process. This avoids differences in moisture absorption caused by uneven thickness, resulting in more stable overall moisture absorption performance of the yarn. This uniform moisture absorption structure helps maintain consistent yarn performance.

[0020] Secondly, this application provides a fabric comprising the novel elastic yarn described in the first aspect.

[0021] Furthermore, the fabric comprises warp yarns and weft yarns, wherein the weft yarns are the novel elastic yarns.

[0022] The beneficial effects of this utility model are as follows: The novel elastic yarn of this utility model uses an "8" winding structure to increase the structural stability of bamboo fiber filaments and elastic fibers, which can prevent the yarn core from shifting during use. The hollow structure provides a buffering effect. When the elastic fibers are stretched, the bamboo fiber filaments also provide a certain restraining effect, which helps to inhibit the excessive stretching of elastic fibers and reduce the occurrence of elastic fiber breakage. The outer natural cellulose fiber coating layer has good moisture absorption, the hollow nylon can use the hollow structure to assist in moisture conduction, and the bamboo fiber filaments also have good moisture absorption and breathability. The combination of the three can avoid excessive moisture accumulation in the shallow layer of the yarn, which is conducive to accelerating the transfer of moisture absorbed locally by the yarn along the length of the yarn and can reduce the feeling of stuffiness.

[0023] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the radial cross-sectional structure of a novel elastic yarn provided in an embodiment of this application.

[0025] Figure 2 This is a schematic diagram of the structure of hollow nylon wound with bamboo fiber filaments and elastic fibers.

[0026] Figure 3 This is a schematic diagram of the structure of a composite core wire covered with a natural cellulose fiber coating layer.

[0027] Figure reference numerals: 1. Composite core wire; 11. Bamboo fiber filament; 12. Elastic fiber; 13. Hollow nylon; 2. Natural cellulose fiber coating layer; 21. Cotton thread; 22. Linen thread. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] The following disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0030] Existing elastic yarns have poor moisture absorption, easily causing a stuffy feeling and promoting bacterial growth in hot and humid environments. Some manufacturers apply antibacterial or hydrophilic coatings to the fabric surface. While these coatings are effective initially, they gradually peel off with repeated household washing, resulting in a decrease in antibacterial effectiveness.

[0031] Reference Figure 1 and Figure 2 This application provides a novel elastic yarn, comprising bamboo fiber filaments 11 and elastic fibers 12 as the yarn core, and hollow nylon 13 wound around the surface of bamboo fiber filaments 11 and elastic fibers 12. The hollow nylon 13 is wound back and forth in a figure-eight shape around bamboo fiber filaments 11 and elastic fibers 12 to form a composite core yarn 1. The surface of the composite core yarn 1 is covered with a natural cellulose fiber coating layer 2.

[0032] Bamboo fiber filament 11 and elastic fiber 12 are used as the yarn core. The combination of the two provides the yarn with a certain elasticity and a natural antibacterial property (bamboo fiber filament contains the natural antibacterial component bamboo quinone).

[0033] The figure-eight winding structure enhances the overall performance and structural stability of the yarn, effectively preventing core displacement during use. Because the hollow nylon tightly winds the elastic fiber, when the elastic fiber needs to elongate, the loop spacing between adjacent loops of the hollow nylon winding on the elastic fiber tends to increase. Correspondingly, the loop spacing between adjacent loops of the hollow nylon winding on the bamboo fiber filament also needs to increase. However, bamboo fiber filaments have a low elongation rate, making it difficult to increase the loop spacing between adjacent loops of the hollow nylon winding on the bamboo fiber filament. This also hinders the increase in loop spacing between adjacent loops of the hollow nylon winding on the elastic fiber, thus achieving restraint on the elastic fiber.

[0034] The hollow structure of the nylon provides a cushioning effect when the yarn is stretched. Furthermore, since the bamboo fiber filament 11 and the elastic fiber 12 are arranged side by side, the bamboo fiber filament 11 can restrain the stretching of the elastic fiber 12 to a certain extent, which helps to prevent the elastic fiber 12 from being overstretched and reduces the possibility of the elastic fiber 12 breaking.

[0035] The natural cellulose fiber coating layer 2 has good moisture absorption and can quickly absorb sweat emitted by the human body. The hollow nylon 13 located in the outermost layer can assist in moisture wicking by utilizing its hollow structure, and the bamboo fiber filament 11 in the center also has good moisture absorption. The combination of these three elements helps to accelerate the transfer of moisture absorbed locally by the yarn along the length of the yarn, avoiding excessive moisture accumulation in the shallow layer of the yarn, thereby reducing the feeling of stuffiness.

[0036] Bamboo fiber filament 11, as part of the yarn core, provides strength and dimensional stability, while elastic fibers give the yarn excellent elastic recovery properties. Hollow nylon is wound in a figure-eight pattern around the yarn core. This winding method ensures a tighter connection between the bamboo fiber filaments and elastic fibers when the yarn is stretched, thereby enhancing the structural stability and density of the composite core. The outermost layer of natural cellulose fiber coating gives the yarn good moisture absorption and skin-friendliness, improving its moisture absorption, breathability, and comfort.

[0037] Preferably, the bamboo fiber filament 11 is thicker than the elastic fiber 12. Bamboo fiber filaments with a larger diameter or denier are selected as the main support component of the yarn core. The relatively thicker bamboo fiber filaments share the load when the elastic fiber is stretched, reducing the likelihood of breakage in the elastic yarn and achieving a balance between yarn strength and elasticity. The relatively thinner elastic fiber, due to the restriction and protection provided by the bamboo fiber filaments, avoids excessive stress during stretching, reducing the risk of damage to the elastic fiber and ensuring the durability of the yarn's elasticity. This combination of thick and thin filaments allows the yarn to possess the elasticity required for use while also improving its overall strength and service life.

[0038] Therefore, the elastic fiber 12 can be made of a finer 20D spandex. Correspondingly, 75D bamboo fiber filament 11 can be used in conjunction, ensuring that the bamboo fiber filament has sufficient strength and stiffness to provide effective physical support for the relatively fine elastic fiber. The 75D bamboo fiber filament can effectively serve as the skeleton of the composite core, fully utilizing the elasticity of the 20D spandex. This dimensional design ensures that the yarn possesses both elasticity and good structural strength.

[0039] When the hollow nylon is too fine, its moisture-wicking ability and cushioning effect are poor; when the hollow nylon is too thick, it makes the composite core yarn too stiff and reduces its elasticity. Specifically, hollow nylon 13 has a denier of 40D~70D, which can provide both good moisture-wicking ability and appropriate cushioning. At the same time, it avoids the problem of increased stiffness and decreased elasticity of the composite core yarn caused by excessively thick hollow nylon, thus ensuring the final strength, elasticity and wearing comfort of the yarn.

[0040] Preferably, the hollow nylon 13 has a denier of 52D, which provides optimal fit for yarns with this structure, offering just the right thickness. During winding of the yarn core, it stably surrounds the bamboo fiber filaments and elastic fibers, providing optimal structural stability and preventing core displacement. It also performs excellently in cushioning elastic fiber stretch and assisting in moisture wicking, ensuring a good performance balance in all aspects of the yarn.

[0041] In some embodiments, the natural cellulose fiber coating layer may be, for example, short fibers of cotton or linen wrapped around the composite core during the spinning process.

[0042] In a preferred embodiment, refer to Figure 3 The natural cellulose fiber coating layer 2 comprises cotton yarn 21 and hemp yarn 22 wound in the same direction on the composite core yarn 1. The cotton yarn imparts a soft touch and moisture-wicking properties to the coating layer, while the hemp yarn provides strength and a certain degree of antibacterial ability. The cotton and hemp yarns are combined in a unidirectional winding manner, allowing the coating layer to possess both the softness and moisture-wicking properties of cotton and the strength of hemp, avoiding the rough feel that pure hemp materials may have. The unidirectional winding method ensures that the yarn surface has a good and consistent feel. By using two natural cellulose fibers, cotton and hemp, the performance of the coating layer is complementary and enhanced.

[0043] Specifically, cotton thread 21 and linen thread 22 are of the same thickness, and the unidirectional winding method ensures that the cotton and linen threads are evenly distributed on the surface, resulting in more balanced yarn surface properties. This forms a natural cellulose fiber coating layer of uniform thickness and structure. This uniform coating layer contributes to more stable yarn surface properties, such as dyeing uniformity, abrasion resistance, and hand feel, thereby improving the overall quality of the yarn. The same thickness also allows the coating layer to simultaneously possess the softness of cotton and the breathability and strength of linen. It is important to note that the specifications of cotton thread 21 and linen thread 22 should be as fine as possible.

[0044] This new type of elastic yarn effectively solves the problems of poor moisture absorption and stuffiness associated with existing elastic fabrics. For example, when used in denim production, this new elastic yarn can be used as the weft yarn, while indigo-dyed pure cotton yarn can be used as the warp yarn, giving the denim fabric many of the yarn's superior properties. These include good elasticity, allowing it to adapt to various movements and providing comfortable wear; natural antibacterial properties, inhibiting bacterial growth; excellent moisture absorption and wicking properties, quickly absorbing sweat and reducing stuffiness; and a stable yarn structure, preventing the yarn core from breaking during use, ensuring the fabric's durability and stability.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A novel elastic yarn, characterized in that, The composite core yarn (1) consists of bamboo fiber filaments (11) and elastic fibers (12) as the yarn core, and hollow nylon (13) wrapped around the surface of the bamboo fiber filaments (11) and elastic fibers (12). The hollow nylon (13) is wound back and forth in a figure-eight shape around the bamboo fiber filaments (11) and elastic fibers (12) to form a composite core yarn (1). The surface of the composite core yarn (1) is covered with a natural cellulose fiber coating layer (2).

2. The novel elastic yarn according to claim 1, characterized in that, The bamboo fiber filaments (11) are thicker than the elastic fibers (12).

3. The novel elastic yarn according to claim 1, characterized in that, The elastic fiber (12) is 20D spandex.

4. The novel elastic yarn according to claim 3, characterized in that, The denier of the bamboo fiber filament (11) is 75D.

5. The novel elastic yarn according to claim 1, characterized in that, Hollow nylon (13) has a denier of 40D~70D.

6. The novel elastic yarn according to claim 5, characterized in that, The hollow nylon (13) has a denier of 52D.

7. The novel elastic yarn according to claim 1, characterized in that, The natural cellulose fiber coating layer (2) includes cotton thread (21) and hemp thread (22) wound in the same direction on the composite core (1).

8. The novel elastic yarn according to claim 7, characterized in that, The cotton thread (21) and the hemp thread (22) are of the same thickness.

9. A fabric, characterized in that, Including the novel elastic yarn as described in any one of claims 1 to 8.

10. The fabric according to claim 9, characterized in that, It includes warp yarns and weft yarns, wherein the weft yarn is the novel elastic yarn.

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