Lining convenient for down filling, and down filling method

By introducing low-permeable zone and high-permeable zone structures into the down jacket lining, a direct gas flow path is formed, which solves the problems of low filling efficiency and poor breathability in the prior art, and achieves uniform filling and filling efficiency of down improve.

WO2025001303A1PCT designated stage expired Publication Date: 2025-01-02BOSIDENG DOWN WEAR LTD

Patent Information

Application Number
PCT/CN2024/081289
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-06-30
Filing Date
2024-03-13
Publication Date
2025-01-02

AI Technical Summary

Technical Problem

In the existing down jacket filling technology, there is a lack of direct compressed air flow path between the filling tube and the filling cavity, which makes it difficult to fill the down. The traditional method can easily lead to blockage of through holes in the filling tube and down drilling out, and fabrics with poor breathability. And lining makes the filling efficiency inefficient.

Method used

It uses easy-to-film lining, including low-permeable zones and high-permeable zones. The high-permeable zone is a cushion-like structure for intercepting down, allowing gas to pass through, and the low-permeable zones are connected to the high-permeable zones to form quilting lines. Fixing devices such as glue layers Or magnetic stripes are used to temporarily fix the high-permeability area, and the pulling wire brings the high-permeability area inward, forming a direct gas flow path, and canceling the return air pipe and through holes.

Benefits of technology

It realizes direct filling of down into the filling cavity, avoids clogging of through holes in the filling tube and down escape problems, improves filling efficiency and breathability, and ensures filling effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2024081289_02012025_PF_FP_ABST
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Abstract

A lining convenient for down filling, and a down filling method. The lining comprises a low-breathability zone (1) and a high-breathability zone (2), wherein the high-breathability zone (2) is of a pocket-shaped structure, and the high-breathability zone (2) is configured to obstruct down while allowing air to quickly pass through; and the low-breathability zone (1) is connected to the high-breathability zone (2). During down filling, down can directly fill a down filling cavity, thereby avoiding the problems of holes in an inner pipe being blocked during the process of down filling using a conventional down-filling pipe, and of shaking off the down into the down filling cavity from the inner pipe after down filling; thus, the down filling efficiency is effectively improved, and a down filling workshop environment is improved while ensuring a down filling effect.
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Description

Easy-to-fill down lining and filling method Technical Field

[0001] The invention belongs to the field of clothing, relates to a down filling technology for down jackets, and particularly relates to an easy-to-fill down lining and a filling method. Background Art

[0002] Currently, to prevent down from clumping, down jackets are typically divided into several filling cavities using a quilting process, which is then filled individually. Furthermore, to prevent down from leaking through, both the outer and inner layers of down jackets are typically made of densely woven fabrics or coated to minimize pore size. However, this also results in poor breathability of both the outer and inner layers.

[0003] Existing down filling equipment primarily uses compressed air for filling, but due to the low air permeability of the outer fabric and lining, compressed air has difficulty entering the down filling cavity formed by the outer fabric and lining. Existing down filling tubes primarily utilize an inner tube with a vent and a return air tube that fits over the inner tube. During use, the entire tube is inserted into the filling cavity, creating a compressed air flow path between the inner tube and the return air tube. After the down enters the inner tube, compressed air enters the return air tube through the vent. After the compressed air is removed, the down essentially remains in the inner tube. The tube must then be carefully removed and the down shaken out into the filling cavity.

[0004] As can be seen, existing down filling solutions lack a direct compressed air flow path between the filling cavity and the filling tube, so down cannot be directly filled into the filling cavity. Furthermore, numerous studies have reported on clogged through-holes in the filling tube, leading to interrupted filling and down escaping from the through-holes, resulting in insufficient filling. More importantly, traditional down filling methods have drawbacks such as the down easily becoming caught in the vents during the process of shaking the down from the inner tube into the filling cavity after filling, and down escaping from the filling cavity opening due to shaking.

[0005] Summary of the Invention

[0006] Purpose of the invention: In order to overcome the shortcomings of the prior art, an easy-to-fill down lining and a filling method are provided, which can form a down filling cavity with the fabric, and allow a compressed air flow path to be directly constructed between the filling tube and the down filling cavity, thereby eliminating the through holes on the return air pipe and the inner tube, and directly filling the down into the filling cavity.

[0007] Technical solution: In order to achieve the above-mentioned purpose, the present invention provides an easy-to-fill down lining, including a low-permeability area and a high-permeability area. The high-permeability area is a pocket-shaped structure. The high-permeability area is used to intercept down while allowing gas to pass through quickly. The low-permeability area is connected to the high-permeability area. The two sides adjacent to the low-permeability area and the high-permeability area constitute a first quilting line, the side opposite to the low-permeability area and the high-permeability area constitutes a second quilting line, and the side where the low-permeability area and the high-permeability area are fixedly connected constitutes a third quilting line.

[0008] Furthermore, the low-permeability area is fixedly connected to one side of the high-permeability area, and a fixing device is arranged on the outer ring of the other side of the high-permeability area.

[0009] The fixing device is one of a glue layer, a magnetic strip, and a Velcro, and is used to temporarily fix the high-permeability area on the fabric, which is also the basis for the subsequent filling method of the present invention.

[0010] Furthermore, a pulling line is provided on the bottom portion of the high-permeability area, and the pulling line is used to pull the high-permeability area to shrink into the down filling cavity.

[0011] Furthermore, the length of the pulling line is greater than the length of the low-transmittance area.

[0012] Furthermore, the pulling wire is arranged at the center position of the bottom part of the high-transmittance area.

[0013] Furthermore, the material of the high-transmittance area is one of silk screen, non-tightly woven fabric, and non-woven fabric.

[0014] The present invention also provides a filling method based on an easy-to-fill down lining, comprising the following steps:

[0015] S1: Temporarily fix the high-permeability area on the fabric through the fixing device on the high-permeability area;

[0016] S2: Quilting the outer fabric and the lining along the first quilting line so that both sides of the low-permeability area are quilted with the outer fabric, forming a down-filled cavity that is open at the second quilting line and breathable at the bottom high-permeability area;

[0017] S3: Part of the filling tube is extended from the second quilting line into the down filling cavity, and down and compressed air are introduced into the down filling cavity through the filling tube and moved toward the high permeability area. In the high permeability area, the compressed air passes through the high permeability area and the down fibers are trapped.

[0018] S4: After the down filling is completed, pull out the filling tube and quilt the outer fabric and lining along the second quilting line;

[0019] S5: Quilt the outer fabric and lining along the third quilting line to form a down filling cavity that is closed on all sides.

[0020] Furthermore, in step S4, before quilting the outer fabric and the lining along the second quilting line, the pulling thread on the bottom portion of the high-permeability area is pulled out from the second quilting line, thereby preventing the pulling thread from being completely enclosed in the down filling cavity and thus failing to pull the high-permeability area.

[0021] Furthermore, after the outer fabric and lining are quilted along the second quilting line in step S4, the pull line is pulled to cause the pocket-shaped high-permeability area and the down gathered in the high-permeability area to shrink into the down filling cavity. This ensures that after the third quilting line is quilted, the high-permeability area is completely within the down filling cavity and is not exposed to the outside. It also ensures that the down is more evenly distributed within the down filling cavity.

[0022] Beneficial effects: Compared with the prior art, the present invention has made creative improvements to the lining of down jackets, so that it can enclose a special down filling cavity with the fabric, and the down filling cavity can form a direct gas flow path with the filling tube, so that when filling, the down can be directly filled into the down filling cavity, avoiding the problems of clogging of the holes in the inner tube of the traditional filling tube and the down being shaken out of the inner tube into the down filling cavity after filling. While ensuring the filling effect, the filling efficiency is effectively improved and the environment of the filling workshop is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a structural diagram of an easy-to-fill down lining;

[0024] FIG2 is a schematic diagram of the lining and the outer fabric being sewn together along the first quilting line;

[0025] FIG3 is a schematic diagram of sewing along the second quilting line after filling;

[0026] FIG4 is a schematic diagram of a closed down filling cavity formed by sewing along the third quilting line after pulling.

[0027] In the figure: 1 is the low-permeability area, 2 is the high-permeability area, 3 is the glue layer, 4 is the pulling line, 5 is the first quilting line, 6 is the second quilting line, 7 is the third quilting line, 8 is the fabric, and 9 is the down. DETAILED DESCRIPTION

[0028] The present invention is further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, modifications of various equivalent forms of the present invention made by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0029] As shown in Figure 1, the present invention provides an easy-to-fill down lining, including a low-permeability area 1 and a high-permeability area 2. The high-permeability area 2 is a pocket-shaped structure, which is used to intercept down and allow gas to pass through quickly. The material of the high-permeability area 2 is one of silk screen, non-densely woven fabric, and non-woven fabric. The low-permeability area 1 is fixedly connected to one side of the high-permeability area 2, and a rubber layer 3 is arranged on the outer circle of the other side of the high-permeability area 2. A pulling line 4 is provided at the center position of the bottom part of the high-permeability area 2. The length of the pulling line 4 is greater than the length of the low-permeability area 1. The two sides adjacent to the low-permeability area 1 and the high-permeability area 2 constitute a first quilting line 5, the side opposite to the low-permeability area 1 and the high-permeability area 2 constitutes a second quilting line 6, and the side where the low-permeability area 1 and the high-permeability area 2 are fixedly connected constitutes a third quilting line 7.

[0030] In this embodiment, the easy-to-fill down lining is applied to the filling process of a down jacket, and a filling method based on the easy-to-fill down lining is provided, comprising the following steps:

[0031] S1: Temporarily fix the high-permeability area 2 on the fabric 8 through the adhesive layer 3 on the high-permeability area 2;

[0032] S2: Referring to FIG. 2 , the fabric 8 and the lining are quilted along the first quilting line 5 so that both sides of the low-permeability area 1 are quilted with the fabric 8 to form a down-filled cavity that is open at the second quilting line 6 and breathable at the high-permeability area 2 at the bottom;

[0033] S3: A portion of the filling tube (not shown) is extended from the second quilting line 6 into the down filling cavity, and down 9 and compressed air are introduced into the down filling cavity through the filling tube and moved toward the high permeability area 2. At the high permeability area 2, the compressed air passes through the high permeability area 2 and the down 9 is trapped.

[0034] S4: Referring to FIG3 , after the down 9 is filled, the filling tube is pulled out, and the pulling thread 4 on the bottom part of the high-permeability area 2 is pulled out from the second quilting line 6, and then the fabric 8 and the lining are quilted along the second quilting line 6. After the quilting of the second quilting line 6 is completed, the pulling thread 4 is pulled to shrink the pocket-shaped high-permeability area 2 and the down 9 gathered in the high-permeability area 2 into the down filling cavity, so that the high-permeability area 2 shrinks into the down filling cavity, and the down 9 is evenly distributed in the down filling cavity;

[0035] S5: Referring to FIG. 4 , the outer fabric 8 and the lining are quilted along the third quilting line 7 to form a down-filled cavity that is closed on all sides.

[0036] It should be pointed out that the lining shown in the final Figure 4 of this embodiment is in a single-piece form, but this is only for the convenience of showing its structure. In actual use, the lining can be a continuous structure composed of multiple single pieces, including those connected to each other or in an integrated structure at the first quilting line 5, and / or connected at the second quilting line 6 and the third quilting line 7 or in an integrated structure.

[0037] The present invention has made creative improvements to the lining of down jackets, so that it can enclose a special down filling cavity with the fabric 8, and the down filling cavity can form a direct gas flow path with the filling tube, so that when filling, the down can be directly filled into the down filling cavity, avoiding the problems of clogging of the holes in the inner tube of the traditional filling tube and the down being shaken out of the inner tube into the down filling cavity after filling. While ensuring the filling effect, the filling efficiency is effectively improved and the environment of the filling workshop is improved.

Claims

1. A filling method based on easy-to-fill down lining, characterized in that: The easy-to-fill down lining comprises a low-permeability area and a high-permeability area, wherein the high-permeability area is a pocket-shaped structure, and the high-permeability area is used to intercept down and allow gas to pass quickly at the same time, and the low-permeability area is connected to the high-permeability area, and the two sides of the low-permeability area constitute a first quilting line, the side of the low-permeability area opposite to the high-permeability area constitutes a second quilting line, and the side of the low-permeability area fixedly connected to the high-permeability area constitutes a third quilting line; a pulling line is arranged on the bottom part of the high-permeability area, and the pulling line is used to pull the high-permeability area to shrink into the down filling cavity; the length of the pulling line is greater than the length of the low-permeability area; the low-permeability area is fixedly connected to one side of the high-permeability area, and a fixing device is arranged on the outer circle of the other side of the high-permeability area; The filling method includes the following steps: S1: Temporarily fix the high-permeability area on the fabric through the fixing device on the high-permeability area; S2: Quilting the outer fabric and the lining along the first quilting line, so that the two sides of the low-permeability area are quilted with the outer fabric, forming a down filling cavity that is open at the second quilting line and breathable at the bottom high-permeability area; S3: Extend a portion of the filling tube from the second quilting line into the down filling cavity, and let the down and compressed air enter the down filling cavity through the filling tube, and move to the high permeability area, where the compressed air passes through the high permeability area and the down fibers are trapped; S4: When the down filling is completed, pull out the filling tube, and quilt the outer fabric and lining along the second quilting line; S5: Quilt the outer fabric and the lining along the third quilting line to form a down filling cavity that is closed all around; In the step S4, before quilting the outer fabric and the lining along the second quilting line, the pulling line on the bottom part of the high-permeability area is pulled out from the second quilting line; After the outer fabric and the lining are quilted along the second quilting line in step S4, the pulling line is pulled to shrink the pocket-shaped high-permeability area and the down gathered in the high-permeability area into the down filling cavity.

2. A filling method based on easy-filling down lining according to claim 1, characterized in that: The fixing device is one of a glue layer, a magnetic strip, and a Velcro.

3. A filling method based on easy-filling down lining according to claim 1, characterized in that: The pulling line is arranged at the center of the bottom part of the high-transmittance area.

4. A filling method based on easy-filling down lining according to claim 1, characterized in that: The material of the high-transmittance area is one of a silk screen, a non-tightly woven fabric, and a non-woven fabric.

Citation Information

Patent Citations

  • Quilt and processing process

    CN106724476A

  • Feather filling method for anti-static down feather products

    CN109998206A

  • Lining easy to fill down and down filling method

    CN116548692A

  • Inner fabric for down, inner bag for down, and down-proof structure using the same

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