A down-filled thermal fabric

Abstract

The utility model discloses a kind of down-filled warm-keeping fabrics, it includes: outer layer fabric, inner layer fabric, intermediate fabric, outer down-filled cavity and inner down-filled cavity, the inner side of the outer layer fabric is provided with inner layer fabric, intermediate fabric is fixedly connected between the outer layer fabric and inner layer fabric, the intermediate fabric and inner layer fabric junction are provided with inner fabric connecting line, the intermediate fabric and outer layer fabric junction are provided with outer fabric connecting line, the outer fabric connecting line, intermediate fabric and outer layer fabric are enclosed and form outer down-filled cavity, the inner fabric connecting line, intermediate fabric and inner layer fabric are enclosed and form inner down-filled cavity. Under the condition of same warm-keeping performance, various products made of the raw material and structure mode of the down-filled warm-keeping product of the application can be more light, fit, beautiful, durable than the product made by using prior art, while it can also save down and other raw materials.

Description

Technical Field

[0001] This utility model relates to the field of down-filled thermal fabric technology, and in particular to a down-filled thermal fabric. Background Technology

[0002] In existing technologies, the down-filled cavities used to achieve insulation in down products such as down jackets and down comforters are generally formed by separating and sewing or bonding the outer and inner fabrics according to a certain shape and spacing to create several relatively independent down-filled cavities, which are then filled with down. Each independent down-filled cavity and the down inside together constitute an insulation structure with a very low heat transfer coefficient, which can be used to resist the cold.

[0003] Because the connection between two adjacent down-filled cavities consists only of the outer and inner fabric layers, there is no space for down filling at the connection point. Furthermore, the internal space of the down-filled cavities near the connection point is also very narrow, resulting in a relatively thin or even nonexistent down filling thickness. Therefore, the connection between the outer and inner fabric layers, along with a portion of the down-filled cavities on either side, constitutes a weak point in the insulation effect. For ease of description, this invention uses the architectural term "cold bridge" to describe the weak insulation structure present in the prior art. There are three types of cold bridges in down-filled products produced by existing technology: The first type is structural cold bridge, which refers to the cold bridge structure formed at the connection between the outer and inner fabric layers; the second type is distributed cold bridge, which refers to the cold bridge structure caused by factors such as narrow space in the down filling cavity, insufficient down filling, uneven down filling in the down filling cavity, and decreased down loft due to washing and aging; the third type is spliced ​​cold bridge, which refers to the cold bridge structure formed by flattening and connecting the down filling cavities of different fabrics together by methods such as sewing, bonding, and pressing at the joints of different fabric single-piece structures.

[0004] To enhance warmth, many down products increase the size of the filling cavity and the amount of down, but increasing the filling cavity size only reduces the number and area of ​​structural cold bridges to a limited extent; it cannot eliminate them completely. Increasing the down amount also does not reduce the number and area of ​​structural cold bridges, only the area of ​​distributed cold bridges. It does not fundamentally improve the situation of seam cold bridges at the joints between different fabrics. In larger filling cavities, the down is more prone to forming and expanding distributed cold bridges due to gravity and its own loft, thus reducing warmth. While this method aims to improve warmth, the actual improvement is very limited. It also results in excessive down filling waste, affecting the lightweight nature of down jackets and making them appear bulkier and less aesthetically pleasing. To a large extent, the key to the insulation performance of down products is not the size of the filling cavity or the amount of down, but rather the number and area of ​​cold bridges on the down product itself. Utility Model Content

[0005] The purpose of this invention is to provide a down-filled thermal fabric that solves the problems of structural cold bridges, distributed cold bridges, and spliced ​​cold bridges that cannot be eliminated in existing technical solutions, as well as the problem of excessive down filling and waste.

[0006] To achieve the above objectives, a down-filled thermal fabric is provided, comprising: an outer fabric 1, an inner fabric 2, a middle fabric 9, an outer down-filling cavity 7, and an inner down-filling cavity 8. The inner fabric 2 is disposed inside the outer fabric 1, and the middle fabric 9 is fixedly connected between the outer fabric 1 and the inner fabric 2. An inner fabric connecting line 5 is disposed at the connection between the middle fabric 9 and the inner fabric 2, and an outer fabric connecting line 6 is disposed at the connection between the middle fabric 9 and the outer fabric 1. The outer fabric 1, the middle fabric 9, and the outer fabric connecting line 6 enclose the outer down-filling cavity 7. The inner fabric 2, the middle fabric 9, and the inner fabric connecting line 5 enclose the inner down-filling cavity 8. The outer down-filling cavity 7 and the inner down-filling cavity 8 interlock and complement each other.

[0007] Preferably, splicing cavities 11 are provided on all four edges of the outer fabric 1 and the inner fabric 2. The outer fabrics 1 are connected by outer splicing lines 10, and the inner fabrics 2 are connected by inner splicing lines 12. The outer fabric 1, outer splicing lines 10, inner fabrics 2, inner splicing lines 12 and middle fabric 9 together form the splicing cavity 11.

[0008] More preferably, the outer down filling cavity 7 and the inner down filling cavity 8 can be adjusted by changing the length, width, and shape of the middle fabric 9, as well as the spacing and line type of the outer fabric connecting line 6 and the inner fabric connecting line 5, to set the appropriate down filling amount and geometric shape, thereby meeting the needs of different warmth retention performance and appearance.

[0009] More preferably, the intermediate fabric 9 is a partition strip 13, which divides the space between the outer fabric 1 and the inner fabric 2 into several cold-bridge-free down-filled cavities 14.

[0010] More preferably, the cold-bridge-free down filling cavity 14 can be filled with raw materials.

[0011] More preferably, the splicing cavity 11 can be filled with raw materials.

[0012] More preferably, the outer down filling cavity 7 and the inner down filling cavity 8 can be filled with raw materials.

[0013] A down-filled thermal insulation fabric, wherein the outer down-filled cavity, the inner down-filled cavity, the splicing cavity, and the cold-bridge-free down-filled cavity may be filled with raw materials, including but not limited to down, cashmere, air gel, various thermal insulation cotton, and foamed thermal insulation materials.

[0014] The above-mentioned solution has the following beneficial effects: This invention solves the problems affecting thermal insulation performance of existing fabrics, such as structural cold bridges, distributed cold bridges, and spliced ​​cold bridges. Furthermore, under the same thermal insulation performance conditions, various products made using the down-filled thermal insulation materials and structural methods of this invention are lighter, thinner, more form-fitting, more aesthetically pleasing, and more durable than products made using existing technologies, while also saving on raw materials such as down.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a cross-sectional structural diagram of a down-filled thermal fabric in the prior art; Figure 2 This is a cross-sectional structural diagram of a down-filled thermal fabric according to this utility model. Figure 3 This is a diagram illustrating the traditional fabric structure of a down-filled thermal fabric according to this utility model. Figure 4 This is a cross-sectional structural diagram of an improved form of the down-filled thermal fabric of this utility model; Figure 5This is a schematic diagram of the splicing cross-sectional structure of a down-filled thermal fabric according to this utility model. Figure 6 This is a top view structural diagram of an improved form of the down-filled thermal fabric of this utility model.

[0017] Legend: Among them, 1. Outer fabric; 2. Inner fabric; 3. Down filling cavity; 4. Cold bridge; 5. Inner fabric connecting line; 6. Outer fabric connecting line; 7. Outer down filling cavity; 8. Inner down filling cavity; 9. Middle fabric; 10. Outer splicing line; 11. Splicing cavity; 12. Inner splicing line; 13. Divider strip; 14. Down filling cavity without cold bridge. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1-6 This utility model discloses a down-filled thermal fabric, comprising: an outer fabric 1, an inner fabric 2, a middle fabric 9, an outer down-filled cavity 7, and an inner down-filled cavity 8. The outer fabric 1 and the middle fabric 9 are joined together by an outer fabric connecting line 6 to form the outer down-filled cavity 7. This structure can be achieved through methods including, but not limited to, one-time textile forming, sewing multiple fabric pieces together, bonding multiple fabric pieces with adhesive, ultrasonic bonding of multiple fabric pieces, and hot-press bonding of multiple fabric pieces. Similarly, the inner fabric 2 and the middle fabric 9 are joined together by an inner fabric connecting line 5 to form the inner down-filled cavity 8. This structure can also be achieved through methods including, but not limited to, one-time textile forming, sewing multiple fabric pieces together, bonding multiple fabric pieces with adhesive, ultrasonic bonding of multiple fabric pieces, and hot-press bonding of multiple fabric pieces.

[0020] The outer down filling cavity 7 and the inner down filling cavity 8 can be adjusted by changing the length, width, and shape of the middle fabric 9, as well as the spacing and line type of the outer fabric connecting line 6 and the inner fabric connecting line 5, to set the appropriate down filling amount and geometric shape, thereby meeting the needs of different warmth retention performance and appearance.

[0021] The outer fabric 1 and the middle fabric 9 are connected by the outer fabric connecting line 6 to form the outer down filling cavity 7. The inner fabric 2 and the middle fabric 9 are connected by the inner fabric connecting line 5 to form the inner down filling cavity 8. The outer down filling cavity 7 and the inner down filling cavity 8 are interlocked and complementary to each other. Fabrics with this structure can exist as a separate product form and can become raw materials for down filling product manufacturers to produce down filling and warm insulation products.

[0022] Outer fabric 1, inner fabric 2, middle fabric 9, outer fabric connecting line 5, inner fabric connecting line 6. There is also a special structural form that can fuse the outer down filling cavity 7 and the inner down filling cavity 8 together. The specific fusion method is as follows... Figure 5 As shown: The middle fabric 9 is removed, and a partition strip 13 is placed between the outer fabric 1 and the inner fabric 2, connecting them to form a cold-bridge-free down-filled cavity 14. This structure can be achieved through methods including, but not limited to, one-time textile forming, sewing multiple fabric pieces together, bonding multiple fabric pieces with adhesives, ultrasonic bonding of multiple fabric pieces, and hot-press bonding of multiple fabric pieces. Fabrics with this structure can also exist as a standalone product and can serve as raw materials for down-filled thermal insulation products manufactured by down-filled product manufacturers.

[0023] The outer down-filled cavity 7, the inner down-filled cavity 8, and the splicing cavity 11, as well as the cold-bridge-free down-filled cavity 14 in a further embodiment of this utility model, can be filled with materials including but not limited to down, cashmere, air gel, various thermal insulation cotton, foam products, and other thermal insulation materials.

[0024] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and are a simplified description of this utility model, 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. At the same time, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A down-filled thermal fabric, comprising: The outer fabric (1), inner fabric (2), middle fabric (9), outer down filling cavity (7) and inner down filling cavity (8) are characterized in that: an inner fabric (2) is provided on the inner side of the outer fabric (1); a middle fabric (9) is fixedly connected between the outer fabric (1) and the inner fabric (2); an inner fabric connecting line (5) is provided at the connection between the middle fabric (9) and the inner fabric (2); an outer fabric connecting line (6) is provided at the connection between the middle fabric (9) and the outer fabric (1); the outer fabric (1), the middle fabric (9) and the outer fabric connecting line (6) enclose the outer down filling cavity (7); the inner fabric (2), the middle fabric (9) and the inner fabric connecting line (5) enclose the inner down filling cavity (8); the outer down filling cavity (7) and the inner down filling cavity (8) are interlocked and complementary to each other.

2. The down-filled thermal fabric according to claim 1, characterized in that: The outer fabric (1) and the inner fabric (2) are provided with splicing cavities (11) on all four sides. The outer fabrics (1) are connected by an outer splicing line (10), and the inner fabrics (2) are connected by an inner splicing line (12). The outer fabric (1), the outer splicing line (10), the inner fabric (2), the inner splicing line (12) and the middle fabric (9) together form the splicing cavity (11).

3. The down-filled thermal fabric according to claim 2, characterized in that: The outer down filling cavity (7) and the inner down filling cavity (8) can be adjusted by changing the length, width, shape of the middle fabric (9) and the spacing and line type of the outer fabric connecting line (6) and the inner fabric connecting line (5) to set the appropriate down filling amount and geometry, so as to meet the needs of different insulation performance and appearance.

4. The down-filled thermal fabric according to claim 2, characterized in that: The intermediate fabric (9) is a partition strip (13), which divides the space between the outer fabric (1) and the inner fabric (2) into several cold bridge-free down filling cavities (14).

5. The down-filled thermal fabric according to claim 4, characterized in that: Raw materials can be filled into the cold-bridge-free down filling cavity (14).

6. A down-filled thermal fabric according to any one of claims 2-4, characterized in that: The splicing cavity (11) can be filled with raw materials.

7. A down-filled thermal fabric according to any one of claims 1-3, characterized in that: Raw materials can be filled into the outer down filling cavity (7) and the inner down filling cavity (8).

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