Semi-through-seam and semi-vertical-lining down quilt structure and processing technology thereof

By adopting a semi-through-seam, semi-upholstered structure and buttonhole design in the down comforter, the problem of down leakage during the sewing process has been solved, enabling the manufacture of down comforters with higher quality and faster production speed.

CN122030764APending Publication Date: 2026-05-15叶汉娟
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
叶汉娟
Filing Date
2026-03-04
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing down comforters are prone to feather leakage and down loss during the sewing process. In particular, when using a full-seam process, the number of seams increases the risk of feather leakage. Furthermore, filling the comforter with down before sewing results in down getting trapped in the seams and increasing the gaps.

Method used

The structure adopts a semi-through-seam and semi-upholstered design. A grid-like down filling cavity is formed by setting up an upholstery between the face fabric and the back fabric, and buttonholes are set at the intersection. The down is filled after sewing, avoiding direct contact between the down and the seam, and reducing the risk of down leakage.

Benefits of technology

It effectively reduces the risk of down feathers slipping out of the comforter, improves production efficiency and product quality, reduces gaps at the seams, and ensures uniformity and density of the down filling.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122030764A_ABST
    Figure CN122030764A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of down quilts, and particularly relates to a half-through-seam half-vertical-lining down quilt structure and a processing technology thereof. The down quilt structure comprises a shell fabric; a base fabric; the middle part of the base cloth is connected with the middle part of the surface cloth in a sewing manner, and a plurality of parallel through stitches are formed; the vertical lining cloth is strip-shaped; the multiple pieces of vertical lining cloth are arranged between the surface cloth and the base cloth to form a plurality of parallel vertical lining stitches; the through stitches intersect with the vertical lining stitches, so that a plurality of grid-shaped down filling cavities are formed between the shell fabric and the base fabric in a separated mode, and the down filling cavities are filled with down feather one by one. According to the half-through-seam half-vertical-lining down quilt structure in the scheme, down filling can be conducted after the through seams are formed through sewing, so that the problems that down is mixed up, gaps are enlarged, and the down running risk is large due to the fact that down filling is conducted firstly and then through sewing is conducted are solved, the quality of a down quilt is effectively improved, the production speed of the down quilt is effectively increased, and the machining difficulty and the down running risk are reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of down comforter technology, specifically relating to a down comforter structure with semi-through seams and semi-upright lining and its processing technology. Background Technology

[0002] A down comforter is a type of comforter filled primarily with down feathers, characterized by its high warmth retention, lightness, and softness. Down comforters are highly warm, elastic, and fluffy, about one-third the weight of a cotton comforter and half the weight of a wool or silk comforter. They feel pleasant against the skin, are durable, and long-term use can help prevent rheumatism. However, down comforters are prone to feather shedding, so it's necessary to choose high-density down-proof fabric and suitable sewing needles to address this issue.

[0003] However, the high-density down-proof fabric is damaged during sewing, making it prone to feather leakage and down slippage at the seams. Furthermore, current technology uses a continuous stitching process for both horizontal and vertical seams in down comforters, significantly increasing the number of seams and the risk of feather leakage. Additionally, the current technology uses a pre-filling and post-sewing method, resulting in down feathers getting trapped at the seams, causing feather leakage during sewing and increasing gaps at the seams, further increasing the risk of feather leakage.

[0004] Therefore, it is necessary to design a down comforter that is half-seamless and half-upholstered. Summary of the Invention

[0005] To address the aforementioned problems in existing technologies, this solution provides a semi-seamless, semi-upholstered down comforter structure and its processing technology.

[0006] The technical solution adopted in this invention is as follows: A down comforter structure with semi-seamless and semi-upholstered construction includes: face cloth; The base fabric is placed below the outer fabric, and the edges of the outer fabric are sewn together with the edges of the base fabric; the middle part of the base fabric is sewn together with the middle part of the outer fabric, forming multiple parallel through seams. The interlining is long and narrow; multiple interlinings are placed between the face fabric and the back fabric, with the upper edge of the interlining connected to the face fabric and the lower edge connected to the bottom, forming multiple parallel interlining seams. The through seam intersects with the upright seam to form multiple grid-like filling cavities between the face fabric and the backing fabric, each filled with down; buttonholes are provided at the intersections of the through seam and the upright seam.

[0007] Optional: The through seam intersects perpendicularly with the upright seam.

[0008] Optional: The filling down is duck down or goose down.

[0009] Optional: The vertical lining fabric is made of mesh fabric.

[0010] Optional: The width of the lining fabric is 2-4cm.

[0011] Optional: The through seam is parallel to the long side of the down comforter structure; the upright seam is parallel to the short side of the down comforter structure.

[0012] Optional: The through seam is parallel to the short side of the down comforter structure; the upright seam is parallel to the long side of the down comforter structure.

[0013] A processing technology for a semi-seamless, semi-upholstered down comforter structure, used for processing a semi-seamless, semi-upholstered down comforter structure, includes the following steps: S1: Prepare the front fabric, back fabric, and interlining fabric; S2: Sew the lining fabric to the face fabric and the base fabric; S3: Sew the middle of the outer fabric to the middle of the back fabric to form a through seam; S4: Sew the edges of the outer fabric to the edges of the back fabric, and leave multiple stuffing holes between the edges of the two. S5: Insert the down filling tube into the down filling port and pass it through the stand-up lining to fill each down filling cavity with down one by one.

[0014] Optionally, the insertion direction of the filling tube is parallel to the through seam.

[0015] Optionally, the diameter of the filling tube is greater than 1 cm.

[0016] The beneficial effects of this invention are as follows: The semi-through-seam and semi-upright lining structure of the down comforter in this solution can be filled with down after the through-seam is formed, thereby avoiding the problems caused by filling down first and then making the through-seam: mixed down, increased gaps, and high risk of down leakage. This effectively improves the quality and production speed of the down comforter, and reduces the processing difficulty and the risk of down leakage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a structural diagram of the down comforter structure in this design; Figure 2 This is a cross-sectional view of the AA down comforter structure; Figure 3 This is a cross-sectional view of the BB down comforter structure; Figure 4 This is a diagram showing the state of a down comforter when it is filled with down. Figure 5This is a diagram showing the state of a down comforter when it is filled with down. Figure 6 This is a cross-sectional structural diagram of the buttonhole area; Figure 7 This is a cross-sectional diagram of another type of buttonhole.

[0019] In the diagram: 1-Outer fabric; 2-Backing fabric; 3-Upright lining seam; 4-Through seam; 5-Upright lining fabric; 6-Down filling; 7-Down filling tube; 8-Buttonhole. Detailed Implementation

[0020] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.

[0021] Example 1 like Figures 1 to 6 As shown, this embodiment designs a down comforter structure with a semi-through-seam and semi-upright lining, including a face fabric 1, a bottom fabric 2, and an upright lining fabric 5.

[0022] Both the outer fabric 1 and the backing fabric 2 can be made of cotton, polyester fiber, nylon, polyester, etc., with a high count and high density, and can be any downproof fabric with a count of 40 or higher.

[0023] The base fabric 2 is placed below the outer fabric 1, and the edges of the outer fabric 1 are sewn together with the edges of the base fabric 2, thereby forming a space between them for filling and storing down. The middle part of the base fabric 2 is sewn together with the middle part of the outer fabric 1 using a through-seam technique, forming multiple parallel through-seam lines 4.

[0024] The upright lining 5 is long and narrow, and can be made of mesh fabric. The width of the upright lining 5 is 2-4 cm. Multiple upright linings 5 ​​are placed between the face fabric 1 and the back fabric 2. The upper edge of the upright lining 5 is connected to the face fabric 1, and the lower edge is connected to the bottom, forming multiple parallel upright lining seams 3. The through seam 4 intersects with the upright lining seams 3 to separate multiple grid-like down filling cavities between the face fabric 1 and the back fabric 2. Each down filling cavity is filled with down 6, which is generally duck down or goose down.

[0025] A buttonhole 8 is provided at the intersection of the through seam 4 and the upholstery seam 3. The buttonhole 8 can be a through hole for passing through the outer fabric 1 and the backing fabric 2, or it can be a ring-shaped fastener. Figure 6 , 7 As shown, many users of down comforters will put a duvet cover on the outside for easy washing; and because down comforter fabric is made to prevent down from falling, it is usually made to be relatively smooth. This makes it easy for the duvet cover and the comforter to slide and separate during use, so that they have to be shaken flat every day.

[0026] To solve the problem of the duvet cover and down comforter core separating, many users purchase fasteners to secure them. However, these fasteners can damage the down comforter during use, causing down to escape. Simply securing the duvet cover to the edges and four corners is ineffective. In this embodiment, N pre-set buttonholes in the center of the duvet cover are specifically designed for securing the duvet cover and duvet cover, eliminating the need for user modifications, preventing damage, and ensuring a secure fit. The through seam 4 and the upright seam 3 can be perpendicular. That is, when the through seam 4 is parallel to the long side of the duvet cover structure, the upright seam 3 is parallel to the short side. Conversely, when the through seam 4 is parallel to the short side of the duvet cover structure, the upright seam 3 is parallel to the long side.

[0027] Most down comforters on the market are made using either full upright filling or full through-seam construction. Full upright filling is time-consuming, labor-intensive, and expensive, and the finished fabric surface tends to be wrinkled, especially with high-count, high-density fabrics. Full through-seam construction, on the other hand, is prone to down leakage because during the second stitching process, the needle pierces through the down feathers along with the fabric. Over time, the down feathers escape through the needle holes. The more down filling, the easier it is for the down feathers to escape.

[0028] The advantages of the semi-upholstered, semi-through-seam technique are: 1. It saves time and labor costs compared to traditional full vertical lining.

[0029] 2. The finished surface fabric is smoother than that of a fully vertically liningd fabric.

[0030] 3. It also provides a fuller feel when making thin quilts compared to fully lined ones. 4. Compared to full seams, it is less prone to fraying.

[0031] Example 2 like Figures 1 to 4 As shown, this embodiment designs a processing technology for a semi-seamless, semi-upright down comforter structure, used to process the semi-seamless, semi-upright down comforter structure described in Embodiment 1. The processing technology includes the following steps: S1: Prepare the front fabric 1, the base fabric 2, and the standing lining fabric 5; S2: Sew the lining fabric 5 to the face fabric 1 and the bottom fabric 2; S3: Sew the middle part of the face fabric 1 to the middle part of the base fabric 2 to form a through seam 4; S4: Sew the edge of the face fabric 1 to the edge of the base fabric 2, and leave multiple stuffing holes between the edges of the face fabric 1 and the base fabric 2. S5: Insert the filling tube 7 into the filling port, with the insertion direction of the filling tube 7 parallel to the through seam 4. The diameter of the filling tube 7 is greater than 1 cm. The filling tube 7 can pierce through the upright lining 5 and fill each filling cavity with down 6 one by one. After the filling tube 7 is pulled out, the piercing hole on the upright lining 5 will naturally shrink, thereby reducing the flow of down between the filling cavities.

[0032] Once completed, sew the filling opening closed.

[0033] Because the scheme in this embodiment uses a grid-like filling chamber to fill down one by one, it can effectively ensure that the amount of down in each filling chamber is the same, thus ensuring the uniformity of the filling.

[0034] Furthermore, the use of a through-seam filling method effectively increases the tightness of the through-seam, preventing down from passing through and causing feather leakage. It also avoids creating gaps at the through-seam where down is sewn, thus preventing feather leakage caused by such gaps.

[0035] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.

Claims

1. A structure for a down comforter that is half-seam and half-upholstered, characterized in that: include: Face cloth (1); The bottom fabric (2) is placed below the top fabric (1), and the edge of the top fabric (1) is sewn to the edge of the bottom fabric (2); the middle part of the bottom fabric (2) is sewn to the middle part of the top fabric (1) to form multiple parallel through seams (4). The upright lining (5) is long and narrow; multiple upright linings (5) are placed between the face fabric (1) and the bottom fabric (2). The upper edge of the upright lining (5) is connected to the face fabric (1), and the lower edge is connected to the bottom, forming multiple parallel upright lining seams (3). The through seam (4) intersects with the upright seam (3) to form multiple grid-like filling cavities between the face fabric (1) and the back fabric (2), and each filling cavity is filled with down (6); buttonholes (8) are provided at the intersection of the through seam (4) and the upright seam (3).

2. The down comforter structure with semi-through seams and semi-upright lining according to claim 1, characterized in that: The through seam (4) intersects perpendicularly with the upright seam (3).

3. The semi-seamless, semi-upholstered down comforter structure according to claim 1, characterized in that: The filling down (6) is duck down or goose down.

4. The semi-seamless, semi-upholstered down comforter structure according to claim 1, characterized in that: The vertical lining fabric (5) is made of mesh fabric.

5. The semi-seamless, semi-upholstered down comforter structure according to claim 4, characterized in that: The width of the lining (5) is 2-4cm.

6. The semi-seamless, semi-upholstered down comforter structure according to claim 1, characterized in that: The through seam (4) is parallel to the long side of the down comforter structure; the upright seam (3) is parallel to the short side of the down comforter structure.

7. The semi-seamless, semi-upholstered down comforter structure according to claim 1, characterized in that: The through seam (4) is parallel to the short side of the down comforter structure; the upright seam (3) is parallel to the long side of the down comforter structure.

8. A processing technology for a semi-seamless, semi-upholstered down comforter structure, characterized in that, For processing the semi-seamless, semi-upholstered down comforter structure as described in any one of claims 1-7, the following steps are included: S1: Prepare the face fabric (1), base fabric (2), and standing lining fabric (5); S2: Sew the lining fabric (5) together with the outer fabric (1) and the bottom fabric (2); S3: Sew the middle part of the face fabric (1) to the middle part of the bottom fabric (2) to form a through seam (4). S4: Sew the edge of the face fabric (1) to the edge of the bottom fabric (2), and leave multiple filling holes between the edges of the two; S5: Insert the down filling tube (7) into the down filling port and pass it through the upright lining (5) to fill each down filling cavity with down (6) one by one.

9. The processing technology of the semi-through-seam, semi-upright lining down comforter structure according to claim 8, characterized in that, The insertion direction of the down filling tube (7) is parallel to the through seam line (4).

10. The processing technology of the semi-through-seam, semi-upright lining down comforter structure according to claim 9, characterized in that, The diameter of the down filling tube (7) is greater than 1 cm.