Fabric with three-layer fabric structure
By designing a three-layer fabric structure, using independent filling channels and alternating bonding points, the problems of kapok fiber slippage and insufficient content were solved, thereby improving the stability and heat insulation performance of kapok fiber products.
Patent Information
- Application Number
- CN202520258847.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Traditional kapok fiber products are prone to slippage, clumping, and caking during use, and the existing technology does not contain 100% kapok fiber, which affects the heat insulation and buoyancy performance.
Design a three-layer fabric structure, including a first layer, a second layer and a third layer. The second layer is set between the first and third layers in a zigzag or wavy shape, forming independent first and second filling channels. Kapok fibers are filled through the alternately set channels, and the spacing between the bonding points is controlled at 5-25cm. All-cotton warp and weft yarns are used, with a warp and weft density of 40S-115×76 threads/inch.
It effectively reduces the movement of kapok fibers, prevents clumping, improves the user experience, achieves 100% kapok fiber content, enhances heat preservation and buoyancy, and improves product flatness and safety.
Smart Images

Figure CN223777972U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of woven fabrics, and specifically relates to a three-layer woven structure fabric. Background Technology
[0002] Kapok fiber is a green, natural plant material with a hollow content of 80%-90%. It is lightweight, fluffy, soft, and antibacterial. Its hollow cavities provide excellent heat retention and insulation, making it generally more cost-effective than other animal and plant fibers. In the Lingnan region, during the kapok fruit ripening season, people typically collect the fallen fibers to handcraft quilts, pillows, cushions, and other products. However, traditional handcrafting makes it difficult to precisely separate and position the kapok fibers. During use, the smooth surface of the fibers easily leads to slippage, clumping, and tufting, requiring frequent kneading, smoothing, and maintenance, significantly diminishing the user experience.
[0003] Moreover, based on the aforementioned advantages of kapok fiber, products made from kapok fiber have appeared on the market. For example, the prior art with application number 202111436581.X discloses a kapok plant fiber composite fiber wadding, thermal insulation material, and lightweight life-saving material. It adds hot-melt materials to kapok fiber and polyester fiber, and reinforces and produces wadding cotton clothing and bedding accessories through processes such as carding, web laying, hot melting, rolling, and packaging. After the kapok fiber is pretreated, it is mixed with reinforcing fiber-hot-melt fiber bicomponent fiber and silane coupling agent. The mixture is put into a cotton separator, mixed by a beater, and then put into a vibrating cotton box. Then, a series carding and web laying machine is used to lay the web in a cross-laying manner, hot air treatment for reinforcement, powdering, secondary reinforcement, cooling, and rolling. Increasing the mixing of polyester fiber and kapok fiber reduces the volume ratio and weight ratio of kapok fiber, and also reduces the thermal insulation and buoyancy effect. Moreover, its cutting will increase material loss.
[0004] The disadvantages of the kapok fiber products mentioned above are: their polyester fiber structure lacks a hollow air heat storage bladder, resulting in a stiffer feel and reduced heat insulation and buoyancy performance. At the same time, it is impossible to obtain wadding and products made of 100% kapok. Summary of the Invention
[0005] To address the aforementioned issues, the primary objective of this invention is to provide a three-layer woven fabric structure that, when used to fill kapok fiber materials, reduces the movement of the kapok fibers and improves the user experience of the product.
[0006] Another objective of this invention is to provide a three-layer woven fabric structure that, when used to fill kapok fiber material, can produce products with 100% kapok content, effectively improving the product's heat preservation, heat storage, and buoyancy effects.
[0007] To achieve the above objectives, the technical solution of this utility model is as follows:
[0008] This utility model provides a three-layer fabric structure, including: a first layer, a second layer, and a third layer. The second layer is arranged in a zigzag or wavy shape between the first layer and the third layer, and the upper edge of the zigzag or wavy shape is connected to the first layer and the lower edge is connected to the third layer, so that a number of independent first filling channels are formed between the first layer and the second layer, and a number of independent second filling channels are formed between the second layer and the third layer. The first filling channels and the second filling channels are alternately arranged.
[0009] Furthermore, the connection between the first layer and the second layer forms a first joint point, and the connection between the second layer and the third layer forms a second joint point. The distance between two adjacent first joint points is 5-25cm, and the distance between two adjacent second joint points is 5-25cm.
[0010] Furthermore, the first and third layers are plain or twill weave fabrics, and the second layer is a plain weave mesh gauze fabric.
[0011] Furthermore, the first layer, the second layer, and the third layer are all made of cotton warp and weft yarn fabric, and the yarn count of the cotton warp and weft yarn fabric is 40S.
[0012] Furthermore, the plain weave fabric of the first and third layers has a warp and weft density of 120×76 threads / inch, and the plain weave mesh fabric of the second layer has a warp and weft density of 29×76 threads / inch.
[0013] Furthermore, the warp and weft density of the twill weave in the first and third layers is 115×76 threads / inch, and the warp and weft density of the plain weave mesh fabric in the second layer is 39×76 threads / inch.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The above structure can divide the space between the first and third layers into several independent first and second filling channels through the second layer for filling kapok fibers. This reduces the movement of kapok fibers, thereby avoiding problems such as clumping and lumps in the product. It also solves the problem of heat retention caused by channel gaps due to the back-and-forth slippage of kapok fibers, thus improving the user experience. At the same time, the alternation of the first and second filling channels also makes the filled fabric smoother. In addition, when the fabric of this application is filled with kapok fibers, the kapok fiber content can reach 100%, effectively improving the product's heat preservation, heat storage, and buoyancy effects. Attached Figure Description
[0015] Figure 1 This is a cross-sectional structural diagram of a three-layer fabric.
[0016] Figure 2 This is a three-dimensional structural diagram of a three-layer fabric. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0018] To achieve the above objectives, the technical solution of this utility model is as follows:
[0019] See Figure 1-2 As shown, this embodiment provides a three-layer fabric structure, including: a first layer 1, a second layer 2, and a third layer 3. The second layer 2 is arranged in a zigzag shape between the first layer 1 and the third layer 3, with the upper edge of the zigzag shape connected to the first layer 1 and the lower edge connected to the third layer 3, so that a plurality of independent first filling channels 4 are formed between the first layer 1 and the second layer 2, and a plurality of independent second filling channels 5 are formed between the second layer 2 and the third layer 3. The first filling channels 4 and the second filling channels 5 are arranged alternately.
[0020] Furthermore, the first layer 1 and the third layer 3 are plain or twill weave fabrics, and the second layer 2 is a plain weave mesh gauze fabric.
[0021] Furthermore, the first layer 1, the second layer 2, and the third layer 3 are all made of cotton warp and weft yarn fabric, and the yarn count of the cotton warp and weft yarn fabric is 40S.
[0022] The above-mentioned fabric can be filled with kapok fibers to make pillows, mattresses, meditation cushions, and other products, as follows:
[0023] 1. Taking a quilt core size of 230cm × 220cm as an example, the quilt core is suitable for temperatures of 0-10 degrees Celsius, ideal for autumn and winter. The first layer 1 and the third layer 3 of the fabric are plain weave with a warp and weft density of 120 × 76 threads / inch, and the second layer 2 is plain weave mesh gauze with a warp and weft density of 29 × 76 threads / inch. The distance between two adjacent first bonding points 6 and the distance between two adjacent second bonding points 7 are both 20cm. The weight of fibers filled into the individual channels by the down filling machine is 90-180 grams, and the total weight of kapok fibers filled into this quilt core ranges from 2000-4000 grams.
[0024] 2. Taking a quilt core size of 230cm×220cm as an example, the quilt core is suitable for temperatures of 5-15 degrees Celsius, ideal for spring and autumn. The first layer 1 and the third layer 3 of the fabric are plain weave with a warp and weft density of 120×76 threads / inch, and the second layer 2 is plain weave mesh gauze with a warp and weft density of 29×76 threads / inch. The distance between two adjacent first bonding points 6 and the distance between two adjacent second bonding points 7 are both 15cm. The weight of fibers filled into the individual channels by the down filling machine is 60-120 grams, and the total weight of kapok fibers filled into the quilt core ranges from 1200-2400 grams.
[0025] 3. Taking a quilt core size of 190cm×200cm as an example, this quilt core is suitable for use in summer when the temperature is 15-25 degrees Celsius, and is also suitable for use in autumn and winter for keeping warm, as well as in cotton-padded clothes, cotton-padded trousers, clothing fabrics, and wadding. The first layer 1 and the third layer 3 of the fabric are twill weave with a warp and weft density of 115×76 threads / inch, and the second layer 2 is plain weave mesh fabric with a warp and weft density of 39×76 threads / inch. The distance between two adjacent first bonding points 6 and the distance between two adjacent second bonding points 7 range from 5cm to 10cm. The weight of fibers filled into the individual channels by the down filling machine is 10-30 grams, and the total weight of kapok fibers filled into this quilt core ranges from 600-1200 grams.
[0026] In this embodiment, the first layer 1, the second layer 2, and the third layer 3 are combined to form the first filling channel 4 and the second filling channel 5. Using a computer-controlled filling machine, 100% kapok fiber is qualitatively and quantitatively filled using air pressure to meet the required filling volume. After being laid flat, patted, and evenly distributed, the fiber volume expands, resulting in a fluffy and soft effect. The first layer 1 and the third layer 3 form an inward wrapping and outward convex curve, creating a natural arc. Simultaneously, inward stress is generated, filling the fibers within the channels of the first filling channel 4 and the second filling channel 5, adhering to the mesh interface of the second layer 2. The fiber is pushed by the filling machine, generating air pressure. The resulting airflow carries the fiber through the mesh and implants it into the interface squares, where the fiber is supported. The mesh limits the fiber movement, acting like a stake, resulting in the fibers within the mesh of the second layer 2 and the critical fibers within the channels merging and intertwining. The thickness of the overall volume can be adjusted by utilizing the fibers in the interface structure of all the second layer 2 meshes and the fibers in the individual channels, based on the distance between the weaving joints. The range of fiber filling weight (2.5cm-25cm) yields a filling structure with a fiber filling weight of 80g / m²-800g / m². In other words, the distance is related to the volume ratio. The longer the distance between the joints of the first layer 1, the third layer 3, and the second layer 2, the greater the required fiber weight and the larger the volume ratio. The natural curvature of the outward protrusion creates a greater reaction force on the internally wrapped fibers, and vice versa. This utilizes the second layer 2 mesh within the channels to increase frictional resistance between fibers, generating mutual stress and increasing the mesh's gripping force on the fibers. The obtuse-angled boundary surfaces effectively support and limit each other, achieving a stable effect where the fibers do not shift within the channels.
[0027] Compared to existing technologies, the above structure, through the second layer 2, divides the space between the first layer 1 and the third layer 3 into several independent first filling channels 4 and second filling channels 5 for filling kapok fibers. This reduces the movement of kapok fibers, thus preventing clumping and other problems. It also solves the problem of heat retention caused by channel gaps due to the back-and-forth slippage of kapok fibers, improving the user experience. Simultaneously, the alternation of the first filling channels 4 and second filling channels 5 makes the filled fabric smoother. Furthermore, the kapok fiber content in this embodiment reaches 100%, eliminating the health and safety hazards and quality defects associated with using other animal fibers. It also reduces the production steps of the wadding, the basic material for cotton clothing and quilts, significantly expanding the application range of kapok fibers, effectively achieving cleaner production, cost reduction, and efficiency improvement. Additionally, the invention of combining kapok fibers with a three-layer cotton fabric for warmth and insulation utilizes plant fibers grown under sunlight, making it more biocompatible, low-carbon, environmentally friendly, and in harmony with nature.
[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A three-layer woven fabric, characterized in that, include: The system consists of a first layer, a second layer, and a third layer. The second layer is arranged in a zigzag or wavy shape between the first and third layers. The upper edge of the zigzag or wavy shape is connected to the first layer, and the lower edge is connected to the third layer. This creates several independent first filling channels between the first and second layers, and several independent second filling channels between the second and third layers. The first and second filling channels are arranged alternately.
2. The three-layer woven fabric structure as described in claim 1, characterized in that, The connection between the first layer and the second layer forms a first joint point, and the connection between the second layer and the third layer forms a second joint point. The distance between two adjacent first joint points is 5-25cm, and the distance between two adjacent second joint points is 5-25cm.
3. The three-layer woven fabric structure as described in claim 1, characterized in that, The first and third layers are plain or twill weaves, and the second layer is a plain mesh gauze weave.
4. The three-layer woven fabric structure as described in claim 3, characterized in that, The first, second, and third layers are all made of cotton warp and weft yarn fabric, and the yarn count of the cotton warp and weft yarn fabric is 40S.
5. A three-layer fabric structure fabric as described in claim 3 or 4, characterized in that, The plain weave density of the first and third layers is 120 × 76 threads / inch; The second layer of plain weave gauze has a warp and weft density of 29 × 76 threads / inch.
6. A three-layer fabric structure fabric as described in claim 3 or 4, characterized in that, The warp and weft density of the twill weave in the first and third layers is 115 × 76 threads / inch; The second layer of plain weave gauze has a warp and weft density of 39×76 threads / inch.
Citation Information
Patent Citations
Kapok plant fiber composite fiber flocculus, thermal insulation material and lightweight lifesaving material
CN113981609A