Down fabric with three-dimensional structure
By using a three-layer down fabric design, the vertical wrinkled style channel area formed by the interlacing of warp and weft yarns and the vertical stripes of the weft direction solve the problems of down leakage and accumulation, thereby improving the warmth and appearance of the down jacket.
Patent Information
- Application Number
- CN202422829556.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The down feathers in existing down jackets tend to leak out through the pinholes, and they tend to accumulate after washing, affecting their warmth and appearance.
The down fabric uses a three-layer structure, with the outer and inner layers being the same and the middle layer being a hollow layer formed by the interlacing of warp and weft yarns. It features vertical wrinkle-style channel areas in the first and second cycles and weft-interval vertical stripes to prevent down from piling up.
It effectively prevents down from piling up in the same direction after washing, ensuring the even distribution of down and improving the warmth and appearance of down jackets.
Smart Images

Figure CN223548194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fabrics, and in particular to a down fabric with a three-dimensional structure. Background Technology
[0002] Down jackets are essential for consumers to keep warm in winter. Most down jackets are currently manufactured using a sewing process, which creates many pinholes. High-end down jackets use fine down feathers as filling, which improves their warmth. However, because the down feathers are fine, they are very easy to leak out through the pinholes, greatly affecting the consumer's wearing experience.
[0003] Currently, direct-fill down fabrics are available on the market, which are woven into a straight double-layer fabric during the weaving process. However, this method tends to cause down accumulation after washing, significantly affecting the uniformity of the down's appearance and warmth retention after washing. Based on these reasons, this invention provides a double-layer down fabric to overcome the shortcomings of existing down fabrics. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a down fabric with a three-dimensional structure that avoids the accumulation of down fibers.
[0005] To achieve the above objectives, the solution of this utility model is:
[0006] A down fabric with a three-dimensional structure includes a main fabric layer. This main fabric layer is a three-layer structure formed by warp and weft yarns interlacing according to a preset weave pattern. The outer and inner layers have the same structure, and a hollow layer is formed between the outer and inner layers for subsequent down filling, ensuring the warmth of the down jacket. The weave pattern includes a first cycle and a second cycle. The first cycle is a vertically wrinkled channel area formed by warp and first weft yarns. The second cycle also has a channel area formed by warp and second weft yarns. The second cycle also has vertical stripes spaced along the weft direction, with two stripes forming an opening 1.5cm-2cm wide.
[0007] Furthermore, the spacing of the first cycle is 1cm-1.5cm.
[0008] Furthermore, the pipe spacing in the second cycle is 3cm-4.5cm.
[0009] Furthermore, the interval between the two vertical strips along the latitudinal direction is 3cm-4.5cm, and the length of the vertical strips is 0.75cm-1.25cm.
[0010] Furthermore, the warp yarn is 20D-30D polyester or nylon DTY fiber, the first weft yarn is 30D-50D polyester or nylon DTY fiber, and the second weft yarn is 30D-50D non-ammonia elastic fiber.
[0011] Furthermore, the density of the warp yarn is 350T-400T, and the density of the weft yarn is 310-380T, wherein the ratio of weft yarn 1 to weft yarn 2 is 1:3.
[0012] With the above structure, this utility model features a three-dimensional down fabric. The main body of the fabric is a three-layer structure formed by warp and weft yarns interlacing according to a weave diagram. A hollow layer is formed between the outer and inner layers of the main body, used for subsequent down filling, ensuring the warmth of the down jacket. The first and second cycles create a double-layer effect. The vertical stripes in the second cycle divide the down filling channels in the middle layer into several sections, preventing them from piling up in the same direction after washing, thus avoiding uneven down distribution and inconsistent warmth. The opening width of the vertical stripes is designed to be 0.75cm-1.25cm, ensuring effective down filling and minimizing down accumulation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the fabric structure of one embodiment of the present invention.
[0014] Figure 2 This is a front view of the main fabric layer of this utility model. Detailed Implementation
[0015] To further reveal the technical solution of this utility model, the present utility model will be described in detail below through specific embodiments.
[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0017] like Figure 1 and Figure 2As shown, this utility model discloses a double-layer down fabric with a three-dimensional structure, including a main fabric layer. The main fabric layer is formed by warp yarns 1 and weft yarns 2 interlacing vertically according to a preset structure diagram to form a three-layer structure. The outer layer and the inner layer have the same structure, and the middle layer forms a hollow layer for subsequent down filling, ensuring the warmth performance of the down jacket. The fabric structure diagram includes a first cycle A and a second cycle B. The first cycle A consists of vertically wrinkled, textured piping sections spaced 1cm-1.5cm apart, formed by the interlacing of warp and first weft yarns. The second cycle consists of piping sections spaced 3cm-4.5cm apart, also formed by the interlacing of warp and second weft yarns. The second cycle B also features vertical stripes C, 0.75cm-1.25cm long, spaced 3cm-4.5cm apart along the weft direction. Two stripes C form an opening D 1.5cm-2cm wide. The design of these vertical stripes C divides the middle layer of down filling piping into several sections, preventing them from piling up in the same direction after washing, thus avoiding uneven down distribution and inconsistent warmth retention. The spacing of the vertical stripes C along the weft direction is set between 3cm-4.5cm; it should not be too large, as this will also cause down accumulation and fail to effectively reduce down buildup. The opening D of the vertical strip C is designed to be 1.5cm-2cm wide. This opening D of the vertical strip C can ensure the filling effect and prevent the accumulation of fluff to the greatest extent.
[0018] The warp yarns are 20D-30D polyester or nylon DTY fibers, the first weft yarn 21 is 30D-50D polyester or nylon DTY fibers, and the second weft yarn 22 is 30D-50D non-spandex elastic fiber. This elasticity is not high. When the fabric is dyed and finished, the shrinkage of the second weft yarn 22 is greater than that of the first weft yarn 21, causing the first weft yarn 21 to wrinkle. Due to the low elasticity of the second weft yarn 22, the first weft yarn 21 can produce a uniform wrinkle. Since the wrinkle in the first cycle A is caused by the shrinkage of the yarn, the spacing of the first cycle A should not be too large to ensure the uniformity of the wrinkle.
[0019] The warp density is 350T-400T, and the weft density is 310-380T, with the ratio of weft yarn 1 to weft yarn 2 being approximately 1:3. Within this warp and weft density range, the product's hand feel is guaranteed to be neither too stiff nor too rigid, and post-processing such as calendering and finishing is not required, thus achieving a lint-free and down-proof effect.
[0020] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.
Claims
1. A down fabric with a three-dimensional structure, comprising a main fabric layer, characterized in that: The main fabric layer is a three-layer structure formed by warp and weft yarns interlacing according to a preset weave pattern. The outer and inner layers have the same structure, and a hollow layer is formed between the outer and inner layers. The weave pattern includes a first cycle and a second cycle. The first cycle is a vertical wrinkle-style channel area, which is formed by warp yarns and the first weft yarn. The second cycle has a channel area, which is formed by warp yarns and the second weft yarn. The second cycle also has vertical stripes spaced along the weft direction, and two vertical stripes form an opening with a width of 1.5cm-2cm.
2. The down fabric with a three-dimensional structure as described in claim 1, characterized in that: The spacing of the first cycle is 1cm-1.5cm.
3. The down fabric with a three-dimensional structure as described in claim 1, characterized in that: The pipe spacing in the second cycle is 3cm-4.5cm.
4. The down fabric with a three-dimensional structure as described in claim 1, characterized in that: The interval between the two vertical stripes along the latitudinal direction is 3cm-4.5cm, and the length of the vertical stripes is 0.75cm-1.25cm.
5. A down fabric with a three-dimensional structure as described in claim 1, characterized in that: The warp yarn is 20D-30D polyester or nylon DTY fiber, the first weft yarn is 30D-50D polyester or nylon DTY fiber, and the second weft yarn is 30D-50D non-ammonia elastic fiber.
6. A down fabric with a three-dimensional structure as described in claim 5, characterized in that: The density of the warp yarn is 350T-400T, and the density of the weft yarn is 310-380T, wherein the ratio of weft yarn 1 to weft yarn 2 is 1:3.