A woven cool antibacterial fiber jean fabric and garment

Abstract

The utility model discloses a kind of denim of embedded weaving cool feeling antibacterial fiber and clothing, the denim includes: surface layer, it includes functional yarn, functional yarn is as weft and warp yarn interwoven composition;Bottom layer, it includes antibacterial fiber yarn, antibacterial fiber yarn is as weft and the warp yarn interwoven composition, the surface layer and bottom layer jointly constitute directional moisture channel, so that moisture can be oriented by surface layer to bottom layer conduction and diffusion evaporation;The functional yarn is core-sheath inlay composite structure yarn, including: a core layer, by the cool feeling fiber of special-shaped section composition;A sheath layer, it is covered in the outside of the core layer, by natural fiber composition, the natural fiber surface of the sheath layer is attached with antibacterial nanometer material.The utility model constructs directional moisture channel by core-sheath inlay composite structure yarn and antibacterial fiber yarn to realize one-way wetting, and constitute the double-layer level protection of antibacterial function, it has contact bacteriostasis and the double antibacterial function of bottom layer clear bacteria.

Description

Technical Field

[0001] This utility model relates to the field of denim fabric technology, and in particular to a denim fabric and garment inlaid with cool-feeling antibacterial fibers. Background Technology

[0002] Traditional denim fabric is mainly made of pure cotton. It has poor heat dissipation and breathability in hot environments, and lacks effective antibacterial function. It is easy for bacteria to grow and produce odor after sweating, which can hardly meet the higher demands of modern consumers for clothing comfort, health and functionality.

[0003] To impart cooling and antibacterial properties to denim fabric, the most common methods involve applying finishing agents containing cooling minerals (such as mica) or antibacterial agents (such as quaternary ammonium salts and silver ions) to the finished fabric through padding, coating, or printing. However, the functional substances in this approach only adhere to the fiber surface, exhibiting weak bonding and easily detaching after repeated washing, resulting in poor functional durability. Furthermore, functional coatings may obscure the original fabric texture, affect breathability, and stiffen the hand feel, sacrificing the inherent comfort of denim.

[0004] Existing technologies also achieve cooling and antibacterial functions in denim fabrics through functional fiber blending, which involves blending cooling or antibacterial fibers with cotton fibers before weaving. However, in practical applications, the physical properties of some cooling or antibacterial fibers (especially synthetic fibers) differ significantly from those of cotton fibers, leading to difficulties in the spinning process and low yarn quality and efficiency. Secondly, increasing the blending ratio of functional fibers to ensure sufficient functionality often causes the fabric to lose the soft touch of pure cotton, resulting in an unpleasant synthetic feel.

[0005] Furthermore, most existing fabrics with cooling or antibacterial functions adopt a design approach of evenly distributing the functions. This full-width functionalization is not only costly, but also fails to provide localized reinforcement for key areas of the body that are prone to sweating and bacterial growth (such as the armpits and back), resulting in low functional efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide a denim fabric and garment with embedded cooling and antibacterial fibers, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model provides a denim fabric with embedded cooling and antibacterial fibers, comprising: The surface layer, which is in contact with the skin, includes functional yarns, which are interwoven with the warp yarns as weft yarns; The bottom layer, which is integrated with the surface layer yarns through a woven structure, includes antibacterial fiber yarns. The antibacterial fiber yarns are interwoven with the warp yarns as weft yarns. The surface layer and the bottom layer together form a directional moisture channel, which allows moisture to be directionally conducted from the surface layer to the bottom layer and diffused and evaporated. The functional yarn is a core-sheath inlaid composite structure yarn, comprising: The core layer is composed of cooling fibers with irregular cross-sections; A sheath layer, covering the outside of the core layer, is composed of natural fibers, and the surface of the natural fibers of the sheath layer is coated with antibacterial nanomaterials.

[0008] In this technical solution, the surface and bottom layers together form a directional moisture channel. When the skin sweats, the cotton fibers in the surface sheath layer, with their excellent hydrophilicity, quickly absorb sweat. Simultaneously, the cooling minerals (such as mica) contained in the sheath layer provide an instant cooling sensation upon contact with the skin, while the antibacterial nanomaterials embedded in the cotton fiber surface provide the first line of antibacterial defense. The irregularly shaped cooling fibers (such as cross-shaped fibers) in the core layer rapidly draw moisture adsorbed from the cotton fibers in the sheath layer through capillary force. Because the core layer fibers are continuous, moisture is unidirectionally and rapidly transported from the surface layer to the bottom layer. The antibacterial fiber yarns in the bottom layer receive the moisture conducted from the surface layer, and silver or copper ions provide a second, long-lasting, broad-spectrum antibacterial protection. At this point, the antibacterial fibers in the bottom layer can be blended with hydrophobic fibers, which helps moisture diffuse rapidly to a larger area in the bottom layer. The diffused moisture evaporates more quickly in the natural gaps created at the connection points between the surface and bottom layers (i.e., the micro-air layer in the following embodiments) and on the outer surface of the fabric (the outer side of the bottom layer). The evaporation of moisture absorbs a large amount of heat, creating a second layer of evaporative cooling. The skin surface then returns to dryness, and the entire process repeats itself.

[0009] This invention achieves unidirectional moisture conduction by constructing a directional moisture channel through the core-sheath inlaid composite structure yarn on the surface and the antibacterial fiber yarn on the bottom layer, and constitutes a double-layer protection with antibacterial function. It has dual antibacterial functions of contact antibacterial and bottom layer bacteria elimination.

[0010] As a further improvement of this invention: the cooling fibers with irregular cross-sections in the core layer are polyester or nylon filaments with cross-shaped or Y-shaped cross-sections. For cross-shaped filaments, the groove depth is preferably 5-15 μm, and the number of grooves is 4, which can generate a good capillary effect without affecting fiber strength. This improved solution uses the capillary effect generated by the irregular cross-section filaments to form a directional moisture conduction channel, ensuring a dynamic cooling effect and solving the problem of weak moisture-wicking capacity of ordinary circular cross-section fibers.

[0011] As a further improvement of this invention: the natural fiber of the sheath layer is cotton fiber. Cotton fiber ensures that the fabric retains the softness and comfort of pure cotton and the classic denim look when in contact with the skin, avoiding the discomfort that may be caused by direct contact of synthetic fibers with the skin.

[0012] As a further improvement of this utility model: in the core-sheath inlaid composite structure yarn, the mass ratio of the core layer to the sheath layer is 20:80 to 40:60. This mass ratio ensures that the core layer has sufficient moisture-wicking capacity, while the sheath layer has sufficient cotton fiber coverage to maintain the hand feel. If the ratio is too low, the moisture wicking will be insufficient, and if the ratio is too high, it will affect the cotton feel.

[0013] As a further improvement of this utility model: the surface layer and the bottom layer are formed into an integral structure through a double-layer woven fabric, and a micro-air layer is formed between the surface layer and the bottom layer. This improved solution achieves a physically stable bond between the surface layer and the bottom layer through the double-layer woven fabric and the micro-air layer. The micro-air layer enhances the static thermal insulation performance of the fabric and provides space for moisture evaporation, thereby improving overall comfort.

[0014] As a further improvement of this utility model: the denim fabric has local functional areas corresponding to the underarm and / or back regions, where the proportion of the functional yarns inlaid in these local functional areas is higher than in other areas. This improvement solution addresses the heat dissipation and antibacterial needs of key parts of the human body without significantly increasing costs, thereby enhancing the product's cost-effectiveness and market competitiveness.

[0015] As a further improvement of this utility model: in the said local functional area, the proportion of the functional yarn used as weft yarn is 100%; In the transition area surrounding the local functional area, the ratio of the functional yarn to the pure cotton yarn as weft yarn is 1:1; In the base area, excluding the aforementioned local functional areas and transition areas, pure cotton yarn is used as the weft yarn.

[0016] This improved design achieves a smooth transition from strong to weak functionality through gradient design, using 100%, 1:1, and 0% weft projection ratios, avoiding abrupt changes in function and sensory experience, and meeting ergonomic and aesthetic requirements.

[0017] As a further improvement of this utility model: the bottom antibacterial fiber yarn is a blend of silver ion polyester fiber or copper ion fiber and hydrophobic polyester fiber, wherein the mass proportion of antibacterial fiber is not less than 30%. The silver / copper ions in this improved solution provide reliable long-lasting antibacterial effect, and the blending with hydrophobic fibers ensures the spinnability of the yarn and rapid moisture diffusion. The proportion of not less than 30% ensures the effectiveness of antibacterial treatment.

[0018] As a further improvement of this utility model: the warp yarn is indigo-dyed pure cotton yarn, and the fabric structure of the denim fabric is 3 / 1 right twill, 1 / 3 left twill, or satin. In the fabric structure of denim, the warp yarn determines the main color and appearance of the fabric surface. In this embodiment, indigo-dyed pure cotton yarn is used as the warp yarn, which confines the functional yarns more to the inside of the fabric that contacts the skin, while allowing the indigo warp yarn to form a clear and continuous twill pattern on the surface, ensuring the appearance.

[0019] On the other hand, this utility model also provides a garment made of the aforementioned denim fabric inlaid with cooling and antibacterial fibers. The denim fabric, through the synergy of the outer core-sheath inlaid composite structure yarn and the inner antibacterial fiber yarn in its weaving structure, constructs directional moisture channels to achieve one-way moisture wicking and constitutes a dual-layer protection with antibacterial function. It has dual antibacterial functions of contact antibacterial and bottom-layer bacterial eradication. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the structure of the outer and inner layers of the denim fabric in the embodiment. Figure 2 This is a schematic diagram of the core-sheath inlaid composite structure yarn in an embodiment.

[0021] In the attached diagram: 100: surface layer, 200: bottom layer, 300: functional yarn, 310: core layer, 320: sheath layer, 330: antibacterial nanomaterials, 400: micro air layer. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Reference Figures 1 to 2 The following are some examples of denim fabric and clothing with embedded cool-feeling antibacterial fibers according to this utility model.

[0027] An embodiment of this utility model provides a denim fabric with embedded cooling and antibacterial fibers, such as... Figure 1 and Figure 2 As shown, it includes: The surface layer 100, which is the skin contact layer, includes functional yarns 300, which are interwoven as weft yarns and warp yarns; The bottom layer 200 is integrated with the yarn of the top layer 100 through a woven structure. It includes antibacterial fiber yarn, which is interwoven with the warp yarn as weft yarn. The top layer 100 and the bottom layer 200 together form a directional moisture channel, which allows moisture to be directionally conducted from the top layer 100 to the bottom layer 200 and diffused and evaporated. The functional yarn 300 is a core-sheath inlaid composite structure yarn, comprising: The core layer 310 is composed of cooling fibers with irregular cross-sections; A sheath layer 320, which covers the outside of the core layer 310, is made of natural fibers, and antibacterial nanomaterials 330 are attached to the surface of the natural fibers of the sheath layer 320.

[0028] In this embodiment, the yarns of the bottom layer 200 and the top layer 100 are integrated through a woven structure using a layer-changing weaving method. This involves the same set of warp yarns alternately interweaving with the surface weft yarns and the bottom weft yarns, forming two stable layers on the fabric surface. The natural gaps created by the connection points (weaving points) between the top layer 100 and the bottom layer 200 constitute a micro-air layer 400. This micro-air layer is not filled later; the thickness of the gap is determined by the warp and weft density and the weave structure. The core-sheath inlaid composite structure yarn is not a simple blended or wrapped yarn; it is a functional integrated yarn achieved during the spinning stage through modified Siro spinning or embedded composite spinning. The natural fiber surface of the sheath layer is coated with antibacterial nanomaterials, preferably nano-ZnO or nano-Ag2O, with a particle size ≤100nm. The amount of these nanomaterials on the cotton fiber accounts for 0.5%-2% of the natural fiber mass. The antibacterial nanomaterials are combined with the cotton fiber during the spinning solution stage or pretreatment stage using micro-nano inlay technology. It should be noted that this micro-nano embedding technology is an existing technology. It uniformly disperses antibacterial nanomaterials (such as ZnO or nano Ag2O with a particle size of 20-100nm) into the spinning binder. During or after the formation of cotton fibers, through impregnation, spraying and thermosetting techniques, the nanoparticles are firmly embedded and coated in the micropores and cracks on the surface of a single cotton fiber by means of physical anchoring and chemical bonding.

[0029] In this embodiment, the surface and bottom layers together form a directional moisture channel. When the skin sweats, the cotton fibers in the surface sheath, with their excellent hydrophilicity, quickly absorb sweat. Simultaneously, the cooling minerals (such as mica) contained in the sheath provide an instant cooling sensation upon contact with the skin, while the antibacterial nanomaterials embedded in the cotton fiber surface provide the first line of antibacterial defense. The irregularly shaped cooling fibers (such as cross-shaped fibers) in the core layer rapidly draw moisture adsorbed from the cotton fibers in the sheath through capillary force. Because the core layer fibers are continuous, moisture is unidirectionally and rapidly transported from the surface to the bottom layer. The antibacterial fiber yarns in the bottom layer receive the moisture conducted from the surface layer, and silver or copper ions provide a second, long-lasting, broad-spectrum antibacterial protection. At this point, the antibacterial fibers in the bottom layer can be blended with hydrophobic fibers, which helps moisture diffuse rapidly to a larger area in the bottom layer. The diffused moisture evaporates more quickly in the natural gaps created at the connection points between the surface and bottom layers (i.e., the micro-air layer in the following embodiment) and on the outer surface of the fabric (the outer side of the bottom layer). The evaporation of moisture absorbs a large amount of heat, creating a second layer of evaporative cooling. The skin surface then returns to dryness, and the entire process repeats itself.

[0030] This invention utilizes the synergistic weaving structure of the core-sheath inlaid composite structure yarn on the surface and the antibacterial fiber yarn on the bottom layer to construct directional moisture channels for unidirectional moisture conduction and to form a dual-layer protection with antibacterial function. It has dual antibacterial functions of contact antibacterial and bottom layer bacteria elimination.

[0031] In an optional embodiment, such as Figure 2 As shown, the cooling fibers with irregular cross-sections in the core layer 310 are polyester or nylon filaments with cross-shaped or Y-shaped cross-sections. For cross-shaped filaments, the groove depth is preferably 5-15 μm, and the number of grooves is four, which can generate a good capillary effect without affecting fiber strength. In this embodiment, the capillary effect generated by the irregular cross-section filaments forms a directional moisture conduction channel, ensuring a dynamic cooling effect and solving the problem of weak moisture-wicking capacity of ordinary circular cross-section fibers.

[0032] In an optional embodiment, such as Figure 2 As shown, the natural fibers of the sheath layer 320 are cotton fibers, preferably long-staple cotton with a fineness of 1.2-1.8 dtex and a length of 28-32 mm, to ensure the softness and strength of the yarn. Cotton fibers ensure that the fabric retains the softness, comfort, and classic denim look of pure cotton when in contact with the skin, avoiding the discomfort that may be caused by direct contact of synthetic fibers with the skin.

[0033] In an optional embodiment, such as Figure 2 As shown, in the core-sheath inlaid composite yarn, the mass ratio of the core layer 310 to the sheath layer 320 is 20:80 to 40:60. This mass ratio is controlled by adjusting the core filament feeding speed and the sliver feeding speed. For example, on a composite spinning machine, the core filament feeding speed is set to Vc, and the sliver feeding speed to Vs. The required ratio is calculated and adjusted using the formula (Vc × fineness) / (Vs × sliver weight). The 20:80 to 40:60 mass ratio in this embodiment ensures that the core layer has sufficient moisture-wicking capacity, while the sheath layer has sufficient cotton fiber coverage to maintain a good hand feel. A ratio that is too low will result in insufficient moisture wicking, while a ratio that is too high will affect the cotton feel.

[0034] In an optional embodiment, such as Figure 1 As shown, the surface layer 100 and the bottom layer 200 form an integral structure through a double-layer woven fabric, and a micro-air layer 400 is formed between the surface layer 100 and the bottom layer 200. The double-layer woven fabric is achieved through a weaving method that alternates between the outer and inner layers, like a set of warp yarns interlacing with the surface weft yarns and the bottom weft yarns, forming two stable layers on the fabric surface. The micro-air layer is formed by natural gaps created by the weaving points between the surface and bottom layers. The thickness of these natural gaps is determined by the warp and weft density and the fabric structure, and is between 0.2-0.5 mm. In this embodiment, the double-layer woven fabric and the micro-air layer achieve a physically stable bond between the surface and bottom layers. The micro-air layer enhances the static thermal insulation performance of the fabric and provides space for moisture evaporation, thus improving overall comfort.

[0035] In an optional embodiment, the denim fabric has local functional zones corresponding to the armpit and / or back areas, where the proportion of functional yarns woven into these zones is higher than in other areas. During fabric weaving, these local functional zones are created by changing the weft insertion strategy within a preset fabric width range, corresponding to the armpit and back pattern areas of the garment, using an electronic jacquard loom or multi-arm mechanism. For example, when weaving the local functional zones, the loom only introduces functional yarns as weft yarns; when weaving the transition zones, the loom alternately introduces functional yarns and pure cotton yarns according to a preset program. This embodiment addresses the heat dissipation and antibacterial needs of key body parts without significantly increasing costs, thereby improving the product's cost-effectiveness and market competitiveness.

[0036] In an optional embodiment, in the local functional area, the proportion of the functional yarn used as weft yarn is 100%; In the transition area surrounding the local functional area, the ratio of the functional yarn to the pure cotton yarn as weft yarn is 1:1; In the base area, excluding the aforementioned local functional areas and transition areas, pure cotton yarn is used as the weft yarn.

[0037] This embodiment achieves a smooth transition from strong to weak functionality through gradient design, using weft projection ratios of 100%, 1:1, and 0%, avoiding abrupt changes in function and sensory experience, and meeting ergonomic and aesthetic requirements.

[0038] In an optional embodiment, the underlying antibacterial fiber yarn is a blend of silver ion polyester fiber or copper ion fiber and hydrophobic polyester fiber, wherein the mass percentage of antibacterial fiber is not less than 30%. In this embodiment, silver / copper ions provide reliable long-lasting antibacterial protection, and the blend with hydrophobic fibers ensures the yarn's spinnability and rapid moisture diffusion; the proportion of not less than 30% ensures the effectiveness of the antibacterial treatment.

[0039] In an optional embodiment, the warp yarn is indigo-dyed pure cotton yarn, and the denim fabric weave is a 3 / 1 right-hand twill, 1 / 3 left-hand twill, or satin weave. In the weave structure of denim fabric, the warp yarn determines the main color and appearance of the fabric surface. This embodiment uses indigo-dyed pure cotton yarn as the warp yarn, which confines the functional yarns more to the inner side of the fabric in contact with the skin, while allowing the indigo warp yarns to form a clear and continuous twill pattern on the surface, ensuring a good appearance. A 3 / 1 right-hand twill or 1 / 3 left-hand twill is a classic denim weave, known for its sturdy and durable structure. Satin weave is characterized by fewer warp and weft yarn interlacing points and longer floats. Using a satin weave allows the surface functional yarns to form longer floats on the fabric surface, thereby maximizing the contact area with the skin, improving the triggering efficiency of the cooling effect and the absorption speed of sweat.

[0040] On the other hand, this utility model also provides a garment made of denim fabric inlaid with cooling and antibacterial fibers as described in one or more of the above optional embodiments. This embodiment transforms the planar functional structure of the fabric into an ergonomic three-dimensional garment structure. The denim fabric, through the synergy of the core-sheath inlaid composite structure yarn on the surface and the antibacterial fiber yarn on the bottom layer in the weaving structure, constructs directional moisture channels to achieve one-way moisture wicking and constitutes a double-layer protection with antibacterial function, which has dual antibacterial functions of contact antibacterial and bottom layer antibacterial elimination.

[0041] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A denim fabric inlaid with cooling and antibacterial fibers, characterized in that, include: The outer layer (100), as the skin contact layer, includes functional yarns (300), which are interwoven as weft yarns and warp yarns; The bottom layer (200) and the surface layer (100) are combined into one by a woven structure, which includes antibacterial fiber yarn. The antibacterial fiber yarn is interwoven with the warp yarn as weft yarn. The surface layer (100) and the bottom layer (200) together form a directional moisture channel, so that moisture can be directionally conducted from the surface layer (100) to the bottom layer (200) and diffused and evaporated. The functional yarn (300) is a core-sheath inlaid composite structure yarn, comprising: The core layer (310) is composed of cooling fibers with irregular cross-sections; A sheath (320) is wrapped around the core layer (310) and is made of natural fibers. The surface of the natural fibers of the sheath (320) is coated with antibacterial nanomaterials (330).

2. The denim fabric with embedded cooling and antibacterial fibers according to claim 1, characterized in that: The cooling fibers of the irregular cross section of the core layer (310) are polyester or nylon filaments with a cross-shaped or Y-shaped cross section.

3. The denim fabric with embedded cooling and antibacterial fibers according to claim 1, characterized in that: The natural fibers of the sheath (320) are cotton fibers.

4. The denim fabric with embedded cooling and antibacterial fibers according to claim 1, characterized in that: In the core-sheath inlaid composite structure yarn, the mass ratio of the core layer (310) to the sheath layer (320) is 20:80 to 40:

60.

5. The denim fabric with embedded cooling and antibacterial fibers according to claim 1, characterized in that: The surface layer (100) and the bottom layer (200) are integrated into a single structure through a double-layer woven fabric, and a micro-air layer (400) is formed between the surface layer (100) and the bottom layer (200).

6. The denim fabric with embedded cooling and antibacterial fibers according to claim 1, characterized in that: The denim fabric has local functional zones corresponding to the areas under the armpits and / or the back, in which the proportion of the functional yarns (300) is higher than in other areas.

7. The denim fabric with embedded cooling and antibacterial fibers according to claim 6, characterized in that: In the aforementioned local functional area, the proportion of the functional yarn (300) used as weft yarn is 100%; In the transition area surrounding the local functional area, the ratio of the functional yarn (300) to the pure cotton yarn as weft yarn is 1:1; In the base area, excluding the aforementioned local functional areas and transition areas, pure cotton yarn is used as the weft yarn.

8. The denim fabric with embedded cooling and antibacterial fibers according to claim 1, characterized in that, The warp yarn is indigo-dyed pure cotton yarn, and the fabric structure of the denim fabric is 3 / 1 right twill, 1 / 3 left twill, or satin.

9. A garment, characterized in that, Made from denim fabric inlaid with a cooling and antibacterial fiber as described in any one of claims 1 to 8.

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