Down insulation strips and down jacket fabric

Abstract

This utility model discloses a down insulation strip and a down jacket fabric. The down insulation strip includes a base layer (31). A front adhesive strip (32) is provided on the left side of the base layer (31), and a back adhesive strip (33) is provided on the right side of the base layer (31). The front adhesive strip (32) and the back adhesive strip (33) are arranged along the length direction of the base layer (31), and the combined width of the front adhesive strip (32) and the back adhesive strip (33) is smaller than the width of the base layer (31). The down jacket fabric includes an outer layer fabric (1) and an inner layer fabric (2). A plurality of down isolation strips (3) are provided between the outer layer fabric (1) and the inner layer fabric (2). The down isolation strips (3) divide the space between the inner layer fabric (2) and the outer layer fabric (1) into multiple down filling cavities (4). By using down isolation strips to bond the inner and outer layers of the down jacket fabric, not only can down leakage at the needle holes be eliminated, but also the depression at the bonding point of the inner and outer layers of the down jacket fabric can be reduced, thereby improving the smoothness of the down jacket surface.

Description

Technical Field

[0001] This utility model relates to a down insulation strip used to divide down jacket fabric into multiple filling cavities, belonging to the technical field of down jacket fabric. This utility model also relates to a down jacket fabric. Background Technology

[0002] Down jackets are favored for their excellent warmth and insulation. To prevent the down from sagging and piling up, the down jacket fabric is usually sewn into multiple filling chambers. This means that multiple continuous filling chambers are sewn into the inner and outer fabric of the down jacket, keeping the down within each chamber. However, this method allows down to escape through the stitching holes, reducing the down content and decreasing the jacket's warmth. Furthermore, since the inner and outer fabrics are sewn together at the seams, they don't separate after filling, creating noticeable indentations at the seams and resulting in an uneven fabric surface, affecting the jacket's appearance.

[0003] To address the issue of down leakage, adhesive strips are typically used to bond the inner and outer fabric layers together, preventing down from leaking out through the needle holes. For example, Chinese Patent CN2917337Y discloses a strip-shaped down-filling fabric that includes an adhesive strip between an upper and lower fabric layer, which is heat-pressed together. Because the adhesive strip bonds the upper and lower fabric layers, there are no needle holes, thus eliminating down leakage. However, since the upper and lower fabric layers are bonded together by the adhesive strip, they cannot be separated. Therefore, after filling, noticeable indentations still appear at the adhesive strip, affecting the smoothness of the down jacket's surface. Summary of the Invention

[0004] The purpose of this invention is to provide a down insulation strip that reduces depressions at the bonding point between the inner and outer fabric layers, thereby improving the smoothness of the down jacket surface. This invention also provides a down jacket fabric.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0006] A down insulation strip includes a substrate layer, a front adhesive strip on the front side of the substrate layer, and a back adhesive strip on the back side of the substrate layer. The front and back adhesive strips are arranged along the length of the substrate layer, and the width of the front and back adhesive strips is smaller than the width of the substrate layer.

[0007] Furthermore, the front adhesive strip is located at the left edge of the substrate layer, and the back adhesive strip is located at the right edge of the substrate layer.

[0008] The down jacket fabric includes an outer layer and an inner layer. A plurality of down-insulating strips are provided between the outer and inner layers. Each down-insulating strip includes a base layer. A front adhesive strip is provided on the left side of the base layer, and a reverse adhesive strip is provided on the right side of the base layer. The front and reverse adhesive strips are arranged along the length of the base layer, and their combined width is less than the width of the base layer. The front adhesive strip of the base layer is bonded to the outer layer, and the reverse adhesive strip is bonded to the inner layer. The down-insulating strips divide the space between the inner and outer layers into multiple down-filling cavities.

[0009] Furthermore, the front adhesive strip is located at the left edge of the substrate layer, and the back adhesive strip is located at the right edge of the substrate layer.

[0010] Several down-insulating strips are sequentially installed between the outer and inner fabric layers. These strips connect the outer and inner fabric layers and divide the space between them into multiple filling cavities. During filling, the outer and inner fabric layers at the down-insulating strips can be separated by a certain distance (i.e., the distance between the front and back adhesive strips), thereby reducing depressions at the bonding points of the inner and outer fabric layers and improving the smoothness of the down jacket surface.

[0011] Two adhesive strips are located on the front and back sides of the down separator strip, which makes it easy to place the down separator strip between the inner and outer fabrics and also makes it easier for the down separator strip to adhere to the inner and outer fabrics, thus improving the efficiency of down garment fabric preparation.

[0012] Using down separator strips to bond the inner and outer layers of down jacket fabric can not only eliminate down leakage at the needle holes, but also reduce the depressions at the bonding area between the inner and outer layers of the down jacket, thus improving the smoothness of the down jacket surface. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of a down jacket fabric.

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the down insulation strip. Detailed Implementation

[0016] like Figure 1-2As shown, the down insulation strip 3 includes a substrate layer 31. On the front side of the substrate layer 31, a front adhesive strip 32 is provided on the left side of the substrate layer 31. The front adhesive strip 32 is positioned along the length of the substrate layer 31 and located at the left edge of the substrate layer 31. On the back side of the substrate layer 31, a back adhesive strip 33 is provided on the right side of the substrate layer 31. The back adhesive strip 33 is positioned along the length of the substrate layer 31 and located at the right edge of the substrate layer 31. The combined width of the front adhesive strip 32 and the back adhesive strip 33 is less than the width of the substrate layer 31, and there is a certain gap between the front adhesive strip 32 and the back adhesive strip 33. Alternatively, the front adhesive strip 32 may not be positioned at the left edge of the substrate layer 31, and similarly, the back adhesive strip 32 may not be positioned at the right edge of the substrate layer 31, as long as a certain gap is maintained between the front adhesive strip 32 and the back adhesive strip 33 along the width direction of the substrate layer 31. The substrate layer 31 is made of polyester fabric, downproof nylon, or other fabrics. After bonding, the substrate layer 31 naturally bends along the adhesive strip.

[0017] The down jacket fabric includes an outer downproof fabric 1 and an inner downproof fabric 2. Several down isolation strips 3 are provided between the outer downproof fabric 1 and the inner downproof fabric 2. The several down isolation strips 3 are arranged sequentially between the outer downproof fabric 1 and the inner downproof fabric 2, dividing the space between the outer downproof fabric 1 and the inner downproof fabric 2 into multiple continuous down filling cavities 4.

[0018] In preparing down jacket fabric, several down-separating strips 3 are sequentially arranged between the outer down-proof fabric 1 and the inner down-proof fabric 2. Then, through hot pressing, the front adhesive strip 32 on the left edge of the substrate layer 31 adheres to the outer down-proof fabric 1, bonding the substrate layer 31 and the outer down-proof fabric 1 together. Conversely, the back adhesive strip 32 on the right edge of the substrate layer 31 adheres to the inner down-proof fabric 2, bonding the substrate layer 31 and the inner down-proof fabric 2 together. Alternatively, other methods can be used, where the front adhesive strip 32 adheres to the outer down-proof fabric 1 and the back adhesive strip 32 adheres to the inner down-proof fabric 2.

[0019] During down filling, the outer downproof fabric 1 and the inner downproof fabric 2 at the down isolation strip 3 separate, and the base material layer 31 naturally bends along the adhesive strip, so that the down isolation strip 3 is isolated between adjacent down filling cavities 4. The outer downproof fabric 1 and the inner downproof fabric 2 at the down isolation strip 3 can be separated by a certain distance, thus reducing the depression at the bonding point of the outer downproof fabric 1 and the inner downproof fabric 2, and improving the smoothness of the down jacket surface.

[0020] The above embodiments do not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A down insulation strip, comprising a substrate layer (31), characterized in that: On the front side of the substrate layer (31), a front adhesive strip (32) is provided on the left side of the substrate layer, and on the back side of the substrate layer (31), a back adhesive strip (33) is provided on the right side of the substrate layer. The front adhesive strip (32) and the back adhesive strip (33) are arranged along the length direction of the substrate layer (31), and the width of the front adhesive strip (32) and the back adhesive strip (33) is smaller than the width of the substrate layer (31).

2. The down insulation strip according to claim 1, characterized in that: The front adhesive strip (32) is located at the left edge of the substrate layer (31), and the back adhesive strip (33) is located at the right edge of the substrate layer (31).

3. A down jacket fabric, comprising an outer fabric (1) and an inner fabric (2), characterized in that: A plurality of down isolation strips (3) are provided between the outer fabric (1) and the inner fabric (2). The down isolation strip (3) includes a base layer (31). A front adhesive strip (32) is provided on the front side and the left side of the base layer (31). A back adhesive strip (33) is provided on the back side and the right side of the base layer (31). The front adhesive strip (32) and the back adhesive strip (33) are arranged along the length direction of the base layer (31). The width of the front adhesive strip (32) and the back adhesive strip (33) is smaller than the width of the base layer (31). The front adhesive strip (32) of the base layer (31) is bonded to the outer fabric (1), and the back adhesive strip (33) of the base layer (31) is bonded to the inner fabric (2). The down isolation strip (3) divides the space between the inner fabric (2) and the outer fabric (1) into a plurality of down filling cavities (4).

4. The down jacket fabric according to claim 3, characterized in that: The front adhesive strip (32) is located at the left edge of the substrate layer (31), and the back adhesive strip (33) is located at the right edge of the substrate layer (31).

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