A kind of anti-drilling down feather down piece and its manufacturing method

Abstract

This invention provides a down-proof sheet, belonging to the field of clothing technology, which solves the problem of poor down-proof performance in existing down jackets. The down-proof sheet includes: a fabric layer; an inner lining covering the fabric layer, the inner lining consisting of two layers of inner lining fabric with several lining strips spaced between them; a dividing line located at the positions of the lining strips, which sews the inner lining, lining strips, and fabric together, the dividing line being arranged in a triangular wave shape; and an edge sealing line surrounding the down sheet. This invention features good performance and high aesthetic appeal. This invention also discloses a method for manufacturing the down-proof sheet.

Description

Technical Field

[0001] This invention belongs to the field of mechanical technology and relates to a down-proof down sheet, particularly a down-proof down sheet with a three-dimensional feel. Background Technology

[0002] The filling in down jackets is mainly a mixture of down and feathers. After wearing them for a long time, down, feathers, or shed down fibers may penetrate the fabric or seam holes, resulting in down leakage. These tiny down fibers may adhere to the surface of the garment or penetrate the inner layer of clothing to come into direct contact with the skin, affecting the wearing experience and also causing the down jacket to lose its warmth.

[0003] The current mainstream down-proof technologies typically employ the following methods: using high-density microfiber fabric, which can effectively block down fibers from penetrating in the initial stages of wear, but needle holes from sewing can still cause down to leak out; setting a microporous coating, which prevents down from penetrating while maintaining breathability; and seamless thermoforming technology, which eliminates the risk of down leakage through needle holes, but affects softness and increases costs.

[0004] After prolonged wear and washing, the fabric of down jackets will gradually wear down, the weave structure will become loose, and the seams may shift slightly, widening the gaps between needle holes. In addition, the down filling inside will constantly rub against each other during our daily wear, generating more fine down fibers, which will significantly increase the possibility of down leakage.

[0005] Some fabrics use two layers, or a thin down-proof lining is added to the inside. However, the effectiveness of ordinary sewing methods in preventing down leakage varies.

[0006] In summary, to address the shortcomings of existing down-proof technologies for down jackets, this invention designs a down-proof sheet with a reasonable structure and good performance. Summary of the Invention

[0007] To address the problems existing in the prior art, this invention provides a down-proof feather sheet with a reasonable structure and good performance.

[0008] The objective of this invention can be achieved through the following technical solution: a down-proof down sheet, comprising:

[0009] Fabric layer;

[0010] The inner liner covers the fabric layer and consists of two layers of inner liner fabric, with several inner lining strips placed between the two layers of inner liner fabric.

[0011] A dividing line is located at the position of the inner lining strip and sews the inner lining, inner lining strip and fabric together. The dividing line is set in a triangular wave shape.

[0012] The edge sealing line is set around the perimeter of the down filler.

[0013] As a further improvement to this design, the area between two adjacent dividing lines on the inner lining forms a down-filled area.

[0014] As another improvement in this case, the inner lining strip protrudes on both the upper and lower sides to form a three-dimensional sewing strip.

[0015] As a further improvement to this design, the width of the inner lining strip is greater than the distance between the endpoints of the dividing line.

[0016] As a further improvement in this case, the inner lining strip is made of cotton or silk.

[0017] As a further improvement to this design, an auxiliary line is provided extending from the middle of the dividing line.

[0018] A method for manufacturing a down-proof down sheet includes the following steps:

[0019] S1: Place the fabric layer on the base plate of the sewing template, then stack a layer of lining fabric on the fabric layer, cover the middle plate and attach multiple lining strips to the middle plate, then stack another layer of lining fabric on the lining strips and cover the panel.

[0020] S2: According to the position of the lining strip, sew the dividing lines to form multiple down filling areas, and remove the sewing template after completion;

[0021] S3: Stitch along three sides around the down piece, leaving the other side open to connect with each filling area, forming the filling opening;

[0022] S4: Fill each filling area with down through the filling port;

[0023] S5: Stitch along the other side of the down piece to form a complete edge seal.

[0024] Compared with the prior art, the present invention has a reasonable structural design. By setting an inner lining strip between the two layers of inner lining fabric, it prevents the down inside the lining from leaking out along the seam gaps. At the same time, with the setting of dividing lines and sealing lines, it realizes the form of separating each down filling area before filling, which helps to reduce down leakage. Moreover, the triangular wave-shaped dividing lines can make the inner lining strip form a three-dimensional sewing strip structure, further improving the anti-down leakage effect, while increasing the three-dimensionality and improving the aesthetics of the down piece. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] Figure 2 yes Figure 1 Partial sectional view.

[0027] Figure 3 yes Figure 2 A magnified structural diagram of point A in the middle.

[0028] Figure 4 This is a schematic diagram of the structure after the dividing line is stepped on in this invention.

[0029] Figure 5 This is a schematic diagram of the structure after the edge sealing line is treaded in this invention.

[0030] Figure 6 This is a schematic diagram of another embodiment of the present invention.

[0031] In the diagram, 10 is the fabric layer; 20 is the lining; 21 is the lining fabric; 22 is the down filling area; 23 is the down filling opening; 30 is the lining strip; 31 is the three-dimensional sewing strip; 41 is the dividing line; 42 is the auxiliary line; and 50 is the edge sealing line. Detailed Implementation

[0032] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings.

[0033] like Figures 1 to 5 As shown, this down-proof down panel includes:

[0034] Fabric layer 10;

[0035] The inner liner 20 covers the fabric layer 10. The inner liner 20 is composed of two layers of inner liner fabric 21, and several inner lining strips 30 are placed between the two layers of inner liner fabric 21.

[0036] The dividing line 41 is located at the position of the inner lining strip 30 and sews the inner lining 20, the inner lining strip 30 and the fabric together. The dividing line 41 is set in a triangular wave shape.

[0037] The edge sealing line is 50mm and is set around the perimeter of the down filler.

[0038] After prolonged wear and washing, down jacket fabrics gradually wear down, the weave loosens, and seams may shift slightly, widening the gaps between needle holes. The down filling inside also rubs against each other during daily wear, generating more fine down fibers and significantly increasing the likelihood of down leakage. Currently, some down jackets use two layers of fabric, or have a thin down-proof lining on the inside; however, the effectiveness of ordinary sewing methods in preventing down leakage varies.

[0039] To address this, the present invention provides a down-proof down sheet. By setting an inner lining strip 30 between two layers of inner lining fabric 21, down inside the inner lining 20 is prevented from leaking through the seam gaps. At the same time, the triangular wave-shaped dividing line 41 enables the inner lining strip 30 to form a three-dimensional sewing strip 31 structure, further improving the down-proof effect, while also increasing the three-dimensionality and enhancing the aesthetics of the down sheet.

[0040] Specifically, during production, the fabric layer 10 is placed first, followed by an inner lining fabric 21 on top of the fabric layer 10. Inner lining strips 30 are then placed on the inner lining fabric 21 according to the sewing positions. Another inner lining fabric 21 is then placed on top of each inner lining strip 30, and the stitching is performed along the inner lining strips 30. The stitching is actually performed according to the set triangular wave trajectory, thereby forming triangular wave-shaped dividing lines 41. The dividing lines 41 are set roughly parallel to each other, and at this time the down feather is initially formed.

[0041] Preferably, the portion between two adjacent dividing lines 41 on the inner liner 20 forms a down filling area 22.

[0042] Around the initially formed down piece, the three sides of the down piece are stitched according to a predetermined trajectory to form partial sealing lines 50. A filling area 22 is formed between two adjacent dividing lines 41. A filling area 22 is also formed between the sealing lines 50 on two opposite sides of the down piece and the adjacent dividing lines 41. One end of each filling area 22 is closed by the sealing line 50 on the remaining side of the down piece, while the other end (the filling port 23) is open to facilitate subsequent filling. After filling is completed, the last side of the down piece is sealed, at which point the sealing lines 50 are completely closed.

[0043] Furthermore, the inner lining strip 30 protrudes on both the upper and lower surfaces to form a three-dimensional sewing strip 31. When the sewing needle moves along the triangular wave trajectory, it quickly cycles back and forth at the position of the inner lining strip 30. Under the action of external force, the inner lining strip 30 tends to move from both sides towards the middle. Therefore, the inner lining strip 30 bulges between the dividing lines 41 of the triangular wave, thus forming a raised three-dimensional sewing strip 31 on both sides of the inner lining fabric 21 (i.e., the upper and lower surfaces of the down piece).

[0044] The three-dimensional sewing strip 31 creates a three-dimensional effect, which is beneficial to the overall aesthetics of the down jacket. Furthermore, the three-dimensional sewing strip 31, together with the triangular wave dividing line 41, makes it difficult for down to pass through the filling area 22, further reducing the risk of down leakage.

[0045] Preferably, the width of the lining strip 30 is greater than the distance between the endpoints of the dividing line 41. Here, it is preferable that the width of the lining strip 30 is greater than the distance between the two endpoints of the dividing line 41 (i.e., the triangular wave), which facilitates the sewing needle to tread back and forth, and also helps the lining strip 30 to tend towards the center, making it easier to form a three-dimensional sewing strip 31.

[0046] Furthermore, the inner lining strip 30 is made of cotton or silk. Preferably, the inner lining strip 30 is made of cotton or silk, which is easy to stitch and is soft, which is beneficial to the overall softness of the down feathers. In actual use, other soft and easy-to-stitch materials can also be used, and there is no limitation here.

[0047] like Figure 6 As shown, preferably, an auxiliary line 42 extends from the middle of the dividing line 41. It is worth mentioning that, in another embodiment of the present invention, an auxiliary line 42 can be added to the middle of the dividing line 41 using a common stitching method to further improve the down-proof performance; although the setting of the auxiliary line 42 will affect the shape of the raised inner lining strip 30, it will not affect the three-dimensional feel of the three-dimensional sewing strip 31, and can increase the aesthetics to a certain extent.

[0048] This invention also provides a method for manufacturing a down-proof down sheet, comprising the following steps:

[0049] Step 1: Place fabric layer 10 on the base plate of the sewing template, then stack a layer of inner lining fabric 21 on the fabric layer 10, cover with the middle plate and attach multiple inner lining strips 30 to the middle plate, then stack another layer of inner lining fabric 21 on the inner lining strips 30 and cover with the panel.

[0050] A three-panel sewing template is used, consisting of a front panel, a middle panel, and a bottom panel from top to bottom. The three panels are connected by rotation. Initially, the fabric layer 10 is placed in the designated position on the bottom panel. Then, an inner lining fabric 21 is stacked on the fabric layer 10, and the middle panel is covered. Multiple inner lining strips 30 are pasted on the middle panel in the corresponding positions. Then, another inner lining fabric 21 is placed on each inner lining strip 30. The positions of the two inner lining fabrics 21 correspond to the fabric layer 10. Finally, the front panel is covered.

[0051] Step 2: According to the position of the inner lining strip 30, tread the dividing line 41 to form multiple down filling areas 22, and remove the template after completion;

[0052] The front panel, middle panel, and bottom panel are respectively provided with corresponding stitching grooves. The inner lining strip 30 is located at the stitching groove position on the middle panel. During sewing, the sewing machine head follows the stitching groove (inner lining strip 30) in a triangular wave-shaped trajectory to form a dividing line 41, which divides the down piece into multiple down filling areas 22.

[0053] At this point, the down sheet is initially formed, with the panel and base plate located on the outside of the down sheet. Preferably, the groove on the middle plate is open. After the dividing line 41 is finished, the entire template can be removed from the down sheet.

[0054] Step 3: Stitch along three sides of the down piece, leaving the other side connected to each down filling area 22 to form the down filling opening 23;

[0055] Around the initially formed down piece, the three sides of the down piece are stitched according to a predetermined trajectory to form partial sealing lines 50. A down filling area 22 is formed between two adjacent dividing lines 41. A down filling area 22 is also formed between the sealing lines 50 on two opposite sides of the down piece and the adjacent dividing lines 41. One end of each down filling area 22 is closed by the sealing line 50 on the remaining side of the down piece, while the other end (down filling opening 23) is in an open state.

[0056] Step 4: Fill each filling zone 22 with down through the filling port 23; then fill with down through the filling port 23. Partitioned filling helps to maintain a balanced amount of down in each filling zone 22. Furthermore, the method of partitioning first and then filling can avoid the risk of down leakage caused by down remaining at the seam.

[0057] Step 5: Stitch along the other side of the down piece to form a complete sealing line 50. After filling, seal the last side of the down piece, at which point the sealing line 50 will be complete.

[0058] In addition, this manufacturing method, while achieving the purpose of preventing down leakage, directly integrates the fabric layer 10 and the inner lining 20 into a down sheet, simplifying the processing steps and improving the overall processing efficiency of down jackets.

[0059] This down-proof down sheet has a reasonable structure. By setting an inner lining strip 30 between the two layers of inner lining fabric 21, down is prevented from leaking through the seam gaps. At the same time, with the setting of the dividing line 41 and the sealing line 50, the down filling area 22 is divided before being filled, which helps to reduce down leakage. In addition, the triangular wave-shaped dividing line 41 can make the inner lining strip 30 form a three-dimensional sewing strip 31 structure, further improving the down-proof effect, while increasing the three-dimensionality and improving the aesthetics of the down sheet.

[0060] The embodiments described herein are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, additions, or substitutions made by those skilled in the art to the specific embodiments described herein, or similar substitutions, should be covered within the scope of protection of the present invention.

Claims

1. A down-proof down sheet, characterized in that, include: Fabric layer; The inner liner covers the fabric layer and consists of two layers of inner liner fabric, with several inner lining strips placed between the two layers of inner liner fabric. A dividing line is located at the position of the inner lining strip and sews the inner lining, inner lining strip and fabric together. The dividing line is set in a triangular wave shape. The edge sealing line is set around the perimeter of the down filler.

2. The down-proof down sheet according to claim 1, characterized in that, The area between two adjacent dividing lines on the inner lining forms the down filling area.

3. The down-proof down sheet according to claim 1, characterized in that, The inner lining strip protrudes on both the upper and lower sides to form a three-dimensional sewing strip.

4. The down-proof down sheet according to claim 1, characterized in that, The width of the inner lining strip is greater than the distance between the endpoints of the dividing line.

5. The down-proof down sheet according to claim 1, characterized in that, The inner lining strip is made of cotton or silk.

6. The down-proof down sheet according to claim 1, characterized in that, An auxiliary line is provided extending from the middle of the dividing line.

7. A method for manufacturing a down-proof down sheet, characterized in that, Includes the following steps: S1: Place the fabric layer on the base plate of the sewing template, then stack a layer of lining fabric on the fabric layer, cover the middle plate and attach multiple lining strips to the middle plate, then stack another layer of lining fabric on the lining strips and cover the panel. S2: According to the position of the lining strip, sew the dividing lines to form multiple down filling areas, and remove the sewing template after completion; S3: Stitch along three sides around the down piece, leaving the other side open to connect with each filling area, forming the filling opening; S4: Fill each filling area with down through the filling port; S5: Stitch along the other side of the down piece to form a complete edge seal.

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