Warm-keeping anti-static jean fabric
By using a layered interwoven structure and conductive yarn design, the problem of reduced warmth retention and static electricity in denim fabric after washing is solved, achieving a balance between antistatic and warmth retention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-05-15
AI Technical Summary
Existing denim fabrics suffer from reduced durability during the washing and distressing process after coating treatment, which can negatively impact health. Furthermore, the use of synthetic fibers can generate static electricity, affecting comfort.
It adopts a layered interlacing structure, including upper and lower warp yarns, upper and lower weft yarns, and a middle conductive yarn. The middle weft yarn does not interlace with the warp yarns to form a conductive layer. The lower layer is a fleece layer. The conductive yarn and the fleece layer are combined to prevent static electricity and keep warm.
It effectively prevents static electricity and improves warmth without affecting wearing comfort. It reduces heat loss by quickly balancing the charge of conductive yarns and keeping the space in between.
Smart Images
Figure CN224243355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a warm and anti-static denim fabric, belonging to the textile field. Background Technology
[0002] Traditional denim fabric is a woven fabric, with warp yarns made of pure cotton yarn dyed with indigo dye and weft yarns made of off-white pure cotton yarn. After more than a century of development, denim clothing has remained a staple of fashion, beloved by young people. With societal development, people's pursuit of denim clothing has expanded beyond style and design, placing greater emphasis on functionality and comfort. For example, in cold winters, people need warm denim clothing to protect against the cold. Current technology involves coating fabrics to apply a insulating substance to the surface. However, this coating process is done before the fabric is shipped. For denim clothing, the post-production washing and aging process significantly damages the coating, reducing the garment's warmth. Furthermore, the chemicals in the coating may potentially affect health. Some technicians have also used functional yarns to solve the problem of warmth. Due to the special nature of denim garment production (warp yarns need to be dyed, and most functional yarns are synthetic fibers, which are difficult to dye with indigo), functional synthetic fiber weft yarns are generally used for weaving, such as yarns that can raise temperatures with far-infrared radiation and absorb light to generate heat. Although this can improve the warmth of the fabric, synthetic fibers have poor moisture absorption and are prone to generating static electricity during wear, leading to discomfort. Therefore, a new solution is needed to address this issue. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a warm and anti-static denim fabric, which makes the fabric warm and less prone to static electricity.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] A warm and antistatic denim fabric includes warp yarns and weft yarns. The warp yarns include upper warp yarns and lower warp yarns belonging to two separate systems. The weft yarns include upper weft yarns, middle weft yarns, and lower weft yarns belonging to three separate systems. The upper warp yarns and upper weft yarns interweave to form the upper layer of the fabric, and the lower warp yarns and lower weft yarns interweave to form the lower layer of the fabric. The middle weft yarns are located between the upper and lower layers and do not interweave with the warp yarns. The bottom surface of the lower layer is provided with a napped layer, and the middle weft yarns include conductive yarns.
[0006] The thermal and antistatic denim fabric provided in this application forms a thickened two-layer structure through different interlacing methods of the upper and lower warp and weft yarns. The lower fleece layer can effectively increase the thermal insulation performance. The middle weft yarn is located in the middle and does not interlace with the warp yarn, forming an independent conductive layer. This layer can both support the fabric and create a small space between the thermal layer and the upper layer of the fabric to reduce heat loss, and hide the conductive yarn to avoid contact and friction with the skin and the outside world, thereby providing excellent antistatic performance.
[0007] In a preferred embodiment, the weaving ratio of the upper weft yarn, the middle weft yarn, and the lower weft yarn is 1:1:1, which makes the overall performance of the fabric stable and ensures that the functions of warmth retention, antistatic properties, and structural support are balanced.
[0008] In a preferred embodiment, the ratio of the upper warp yarn to the lower warp yarn is 1:1, which can maintain the uniformity of the warp yarn distribution in the upper and lower layers, ensure that the upper and lower layers have similar tightness, which is conducive to the stability of the upper and lower fabric structures, reduces air leakage, and ensures the basic wearability of the upper layer and the warmth retention effect of the lower fleece layer.
[0009] As a preferred embodiment, the upper layer has a two-upper-two-lower-square weave, which is beneficial for improving wrinkle resistance and fabric drape. The square weave also makes the upper layer of the fabric compact and flat.
[0010] In a preferred embodiment, the lower layer has a plain weave structure with one layer on top of the other. The plain weave is simple and compact, providing a good foundation for brushing and napping. After brushing, it can effectively form a brushed and napped layer, enhancing the warmth retention effect. Moreover, this structure ensures that the lower layer still has good strength after brushing.
[0011] In a preferred embodiment, the upper weft yarn and the lower warp yarn are interwoven as a junction point.
[0012] In a preferred embodiment, the conductive yarn comprises a synthetic fiber core and a metal layer surrounding the synthetic fiber core. The synthetic fiber core provides a certain strength and flexibility, facilitating weaving; the outer metal layer imparts conductivity to the yarn, and this structural design helps to conceal the conductive yarn within the fabric, achieving antistatic functionality without affecting the wearing experience.
[0013] Furthermore, the chemical fiber core is a polyester filament, polyamide filament, or polyethylene filament with a denier of 20D. The 20D denier ensures that the chemical fiber core has a moderate thickness, guaranteeing that the conductive yarn has a certain strength and flexibility.
[0014] Furthermore, the metal layer is a bundle of 30 to 50 metal wires, the diameter of which is less than 0.3 mm and the resistance of which is less than 10 Ω / m. This bundle structure reduces the impact of the metal material on the softness and feel of the fabric, making it more comfortable to wear.
[0015] Furthermore, the conductive yarn also includes an adhesive layer covering the metal layer. The adhesive layer can fix the metal wire, preventing it from loosening during weaving or use and ensuring the stability of the conductive yarn structure; at the same time, the adhesive layer can prevent the metal wire from directly contacting the human body and causing a cooling sensation.
[0016] The beneficial effects of this invention are as follows: The warm and anti-static denim fabric of this invention uses conductive yarn as the middle weft yarn. Static electricity caused by friction between the upper and lower layers of the fabric can be quickly balanced by the middle weft yarn, avoiding static electricity stimulation that may cause discomfort to the user. At the same time, the middle weft yarn is equivalent to a down filling structure, which can support the space between the upper and lower layers. The air in this space is relatively still and has high thermal resistance, which can enhance the warmth of the fabric. Combined with the fleece layer to reduce heat loss, it achieves an even warmer effect.
[0017] 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
[0018] Figure 1 This is a schematic diagram of the layer structure of a warm and anti-static denim fabric provided in an embodiment of this application.
[0019] Figure 2 This is a schematic diagram of the radial cross-sectional structure of a medium-weft yarn provided in an embodiment of this application.
[0020] Figure 3 This is a minimum weave repeat diagram of a warm and anti-static denim fabric provided in an embodiment of this application.
[0021] Figure 4 This is a diagram of a higher-level organizational structure provided in an embodiment of this application.
[0022] Figure 5 This is a lower-level organizational structure diagram provided in an embodiment of this application.
[0023] Attached label: 1. Upper layer; 2. Middle weft yarn; 21. Chemical fiber core; 22. Metal wire; 23. Adhesive layer; 3. Lower layer; 31. Fleece layer. Detailed Implementation
[0024] 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.
[0025] 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.
[0026] Reference Figure 1 This application provides a warm and antistatic denim fabric, including warp yarns and weft yarns. The warp yarns include upper warp yarns and lower warp yarns belonging to two systems, and the weft yarns include upper weft yarns, middle weft yarns 2, and lower weft yarns belonging to three systems. The upper warp yarns and upper weft yarns are interwoven to form the upper layer 1 of the fabric, and the lower warp yarns and lower weft yarns are interwoven to form the lower layer 3 of the fabric. The middle weft yarns 2 are located between the upper layer 1 and the lower layer 3 and are not interwoven with the warp yarns. The bottom surface of the lower layer 3 is provided with a napped layer 31, and the middle weft yarns 2 include conductive yarns.
[0027] In this embodiment, the fabric is divided into upper and lower layers with a non-interwoven middle weft yarn 2 sandwiched in between, thus realizing the structural layering function of the fabric. The lower layer is formed by brushing to form a brushed nap layer. The middle weft yarn can effectively suppress static electricity accumulation and does not interweave with other yarns, so as not to affect the structure of the upper and lower layers.
[0028] When the upper layer 1 rubs against the outside environment or outer clothing, and when the lower layer 3 rubs against inner clothing or the human body, the middle weft yarn 2 can quickly achieve charge balance. Thanks to this, even if the upper and lower weft yarns are made of functional synthetic fibers with heat-retaining properties, the fabric is not prone to static electricity. For example, if the upper weft yarn is a light-absorbing and heat-generating yarn, it can convert the light shining on the outer side of the fabric into heat energy, and the lower weft yarn is a moisture-absorbing and heat-generating yarn, it can absorb moisture emitted by the human body to generate heat. Both the upper and lower warp yarns can be cotton yarns.
[0029] In some embodiments, the weaving ratio of the upper weft yarn, the middle weft yarn 2, and the lower weft yarn is 1:1:1. The three types of weft yarns are woven in equal proportions, so that the fabric is structurally evenly distributed, ensuring that the conductive layer formed by the middle weft yarn 2 is centered and continuous, which helps to improve the overall stability of the fabric and the uniformity of its antistatic function.
[0030] Correspondingly, the ratio of upper warp yarns to lower warp yarns is 1:1, which helps to improve the overall stability and smoothness of the fabric.
[0031] As a specific case, refer to Figure 3 , Figure 4 and Figure 5 The sequence number of the upper weft yarn is represented by Chinese numerals, the sequence number of the middle weft yarn is represented by Arabic numerals, the sequence number of the lower weft yarn is represented by Roman numerals, the sequence number of the upper warp yarn is represented by uppercase letters, and the sequence number of the lower warp yarn is represented by lowercase letters. Blank cells represent weft weft points, and filled cells represent warp weft points. Figure 4 From Figure 3 The upper-level organizational structure diagram extracted from the middle layer. Figure 5 From Figure 3 A diagram of the lower-level organizational structure extracted from the middle layer.
[0032] In this specific case, the lower warp yarn in column h overlaps the upper weft yarn in row four, forming a junction point to connect the upper and lower layers. The upper layer 1 has a two-upper-two-lower plain weave structure, resulting in a tight, smooth, and clearly textured fabric surface. This structure is also resistant to deformation under external forces, making it suitable for everyday wear. The lower layer 3 has a one-upper-one-lower plain weave structure. The plain weave is tight and reliable, and even after weaving, the fabric strength is less likely to decrease significantly, preventing fabric fraying and ensuring more even and less shedding of the nap. The combination of the upper layer 1's plain weave and the lower layer 3's plain weave makes both the upper and lower layers relatively tight, preventing air leakage. The middle weft yarn 2 of the down filling structure supports the space between upper layer 1 and lower layer 3, creating a space with high thermal resistance, which enhances the fabric's warmth.
[0033] Reference Figure 2 The conductive yarn includes a synthetic fiber core 21 and a metal layer surrounding the synthetic fiber core 21. This structure, by wrapping the flexible core with a metal layer, combines flexibility and conductivity in the conductive yarn, facilitating its weft weaving and reducing breakage. Furthermore, thanks to the upper layer 1 and lower layer 3 covering the weft yarn 2, touching either side of the weft yarn 2 makes it difficult to directly contact the metal layer, giving the fabric a feel similar to ordinary denim.
[0034] Specifically, the chemical fiber core 21 can be a polyester filament, polyamide filament, or polyethylene filament with a denier of 20D. Using a 20D fine denier filament as the core can enhance the flexibility and fineness of the conductive yarn, making it easier to maintain smoothness during weaving.
[0035] Preferably, the metal layer is a cluster of 30 to 50 metal wires 22, the diameter of the metal wires 22 is less than 0.3 mm, and the resistance of the metal wires 22 is less than 10 Ω / m. The metal wires can be, for example, nickel-plated copper wires. The clustered structure allows the conductive layer to maintain conductivity while also being flexible, avoiding excessive rigidity of a single metal wire that could affect the comfort of the fabric.
[0036] Because metal has high thermal conductivity, direct contact with the skin can produce a cooling sensation, making it unsuitable for use as warm clothing. In this embodiment, the upper layer 1 and lower layer 3 cover the weft yarn 2, while the napped layer 31 keeps the lower layer 3 away from the skin. This structure significantly reduces the chance of metal contact with the human body. To completely prevent metal wires from contacting the human body, in a preferred embodiment, the conductive yarn also includes an adhesive layer 23 covering the metal layer. The adhesive layer 23, for example, can be a polyurethane coating layer, which can stabilize the metal wires 22, help fix the shape of the metal wire bundle, prevent individual wires from breaking or detaching, and completely prevent the metal from contacting the human body.
[0037] 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.
[0038] 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 warm and anti-static denim fabric, comprising warp yarns and weft yarns, characterized in that, The warp yarns include upper warp yarns and lower warp yarns belonging to two systems, and the weft yarns include upper weft yarns, middle weft yarns (2) and lower weft yarns belonging to three systems. The upper warp yarns and the upper weft yarns are interwoven to form the upper layer (1) of the fabric, and the lower warp yarns and the lower weft yarns are interwoven to form the lower layer (3) of the fabric. The middle weft yarns (2) are located between the upper layer (1) and the lower layer (3) and are not interwoven with the warp yarns. The bottom surface of the lower layer (3) is provided with a napped layer (31). The middle weft yarns (2) include conductive yarns.
2. The warm and antistatic denim fabric according to claim 1, characterized in that, The weaving ratio of the upper weft yarn, the middle weft yarn (2), and the lower weft yarn is 1:1:
1.
3. The warm and antistatic denim fabric according to claim 1, characterized in that, The ratio of the upper warp yarn to the lower warp yarn is 1:
1.
4. The warm and antistatic denim fabric according to claim 1, characterized in that, The upper layer (1) has a two-upper-two-lower flat structure.
5. The warm and antistatic denim fabric according to claim 1, characterized in that, The lower layer (3) has a plain weave structure with one upper and one lower layer.
6. The warm and antistatic denim fabric according to claim 1, characterized in that, The upper weft yarn and the lower warp yarn interweave to form a junction.
7. The warm and antistatic denim fabric according to claim 1, characterized in that, The conductive yarn includes a chemical fiber core (21) and a metal layer surrounding the outer periphery of the chemical fiber core (21).
8. The warm and antistatic denim fabric according to claim 7, characterized in that, The chemical fiber core (21) is a polyester filament, polyamide filament or polyethylene filament with a denier of 20D.
9. The warm and antistatic denim fabric according to claim 7 or 8, characterized in that, The metal layer is a bundle of 30 to 50 metal wires (22), the diameter of the metal wires (22) is less than 0.3 mm, and the resistance of the metal wires (22) is less than 10 Ω / m.
10. The warm and antistatic denim fabric according to claim 7, characterized in that, The conductive yarn also includes an adhesive layer (23) covering the metal layer.