A down comforter with anti-down-shifting stand-up lining and its processing method

Abstract

This invention relates to an anti-down-leakage down comforter with upright lining and its processing method. The anti-down-leakage down comforter includes an upper fabric and a lower fabric, and several upright linings sewn between the upper and lower fabrics. Supporting elements are sewn at the seams between the upper fabric and the upright linings, the seams between the lower fabric and the upright linings, and the seams on the left and right sides of the upper and lower fabrics. The upright linings are composed of two layers of fabric, with the top and bottom ends of the two layers laid flat in opposite directions and sewn together with the upper and lower fabrics respectively. The supporting elements include a supporting fabric body, the middle of which is bent so that the first and last ends of the supporting fabric body contact each other. This invention, by sewing supporting elements at the seams between the upper or lower fabric and the upright linings, and at the seams on the left and right sides of the upper and lower fabrics, can significantly improve the anti-down-leakage and down-leakage effect of the upright lining down comforter.

Description

Technical Field

[0001] This invention belongs to the field of down comforter technology, specifically relating to a down comforter with anti-down-shifting stand-up lining and its processing method. Background Technology

[0002] The down comforter produced by the stand-up lining process has a relatively three-dimensional space in the channel formed by the stand-up lining strips between the upper and lower fabrics. This allows the down to fully release its fluffiness and increase the content of still air inside the comforter, thereby increasing its warmth retention.

[0003] However, existing down comforters with stand-up lining still have problems during use. Specifically, down in the channels formed by the two stand-up lining strips and the upper and lower layers of fabric can easily leak out from the seams between the stand-up lining strips and the upper and lower layers of fabric, or enter another channel, or leak out from inside the down comforter. This can easily lead to down leakage or down falling through. To address this issue, we propose an anti-down leakage stand-up lining down comforter and its processing method. Summary of the Invention

[0004] The purpose of this invention is to provide a down comforter with anti-down-shifting lining and its processing method in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A down comforter with anti-down leakage includes an upper fabric and a lower fabric, and several interlinings sewn between the upper fabric and the lower fabric. Supporting elements are sewn at the seam positions of the upper fabric and the interlinings, the lower fabric and the interlinings, and the seam positions of the left and right sides of the upper fabric and the lower fabric.

[0007] The lining fabric is composed of two layers of fabric. The top and bottom ends of the two layers of fabric are laid flat in opposite directions and sewn together with the upper and lower layers of fabric respectively.

[0008] The support includes a support fabric body, wherein the middle part of the support fabric body is bent so that the two ends of the support fabric body come into contact.

[0009] The first cavity is formed by the two ends of the supporting fabric body. The middle part of the supporting fabric body is formed by hot pressing with interlocking pressing parts one and two to form multiple pleats. The deepest part of each pleat is fixed with a supporting rib by hot pressing. The upper and lower inner sides of each pleat are bonded to each other by an adhesive layer. The upper and lower inner sides of each pleat are formed between the upper and lower inner sides after being bonded by the adhesive layer.

[0010] As a further optimization of the present invention, when the supporting fabric body is sewn at the seam between the upper or lower fabric and the lining, the first end of the supporting fabric body is sewn to the lining through the first seam, and the last end of the supporting fabric body is sewn to the upper or lower fabric through the second seam.

[0011] When the supporting fabric body is sewn at the left and right side seams of the upper and lower fabrics, the first end of the supporting fabric body is sewn to the upper fabric through the first seam, and the last end of the supporting fabric body is sewn to the lower fabric through the second seam.

[0012] Both the first suture and the second suture are located inside the first cavity.

[0013] A method for processing a down comforter with anti-down-shifting stand-up lining includes the following steps:

[0014] Step 1: Sew one side of the upper and lower fabrics together, and sew the support piece onto the inner side of the upper and lower fabrics under the support of the pressure piece 1.

[0015] Step 2: Sew support pieces on both sides of the first and last ends of the interlining fabric. Place the interlining fabric with the support pieces sewn on between the upper and lower layers of fabric. Under the support of the first pressing piece, sew the upper or lower layer of fabric together with the interlining fabric and the end of the support piece.

[0016] Step 3: Sew the upper and lower layers of fabric on the other side as in Step 1, and sew the support piece;

[0017] Step 4: Place the second pressing component on the outer side of the support component. The second pressing component and the first pressing component are interlocked. Place several support ribs on the outer side of the support component. Through the pressing and heating action of the first pressing component and the second pressing component, the middle part of the support component is hot-pressed to form folds, and the support ribs are hot-pressed and fixed at the deepest position of each fold.

[0018] Step 5: The adhesive is delivered to the upper and lower inner surfaces of each pleat through the first pressure component, and the upper and lower surfaces of each pleat are bonded and fixed together by the pressing action of the second pressure component.

[0019] Step 6: Hot pressing to bond and fix the sides of the upper fabric to the beginning of the support, the sides of the lower fabric to the end of the support, the upper fabric to the lining, and the lower fabric to the lining.

[0020] Step 7: Remove pressing parts one and two, sew the front and back sides of the upper and lower fabrics together and fill them with down, then heat press to shape to obtain a down comforter with anti-down leakage.

[0021] As a further optimization of the present invention, the pressing component includes a fan-shaped first positioning plate, several first grooves opened on the outer arc edge of the first positioning plate, two recessed channels respectively opened on the two straight edges of the first positioning plate, a first protrusion between two adjacent first grooves, a main pipeline opened inside the first positioning plate, and a branch pipeline connected to the main pipeline opened on the first protrusion.

[0022] As a further optimization of the present invention, the second pressing component includes a fan-shaped second positioning plate, a plurality of second grooves opened on the inner arc edge of the second positioning plate, a second protrusion between two adjacent second grooves, a heating pressing plate provided at the end of the second protrusion, and pressing protrusions provided on the two side walls of the second protrusion.

[0023] As a further optimization of the present invention, in step four, the hot pressing temperature is 200-220℃ and the hot pressing pressure is 6-8MPa.

[0024] As a further optimization of the present invention, in step six, the hot pressing temperature is 145-155℃ and the hot pressing pressure is 4-6MPa.

[0025] The beneficial effects of this invention are as follows:

[0026] 1) The present invention sews support members at the seam positions of the upper or lower fabric and the lining, and at the seam positions of the left and right sides of the upper and lower fabrics, which can significantly improve the anti-down leakage and down-proof effect of the lining down comforter.

[0027] 2) In this invention, multiple layers of pleats are formed in the middle of the supporting fabric body. Down leakage and down fall are mostly caused by the pressure of the airflow moving the down towards the upper or lower fabric and the seam of the lining under the action of the extrusion. After each compression, the gas is discharged from the first and second cavities, causing the adjacent pleats to close together. This can capture the down moving towards the upper or lower fabric and the seam of the lining, making it difficult for the down to enter the first and second cavities and to leak out with the second seam, thereby improving the fabric's anti-down leakage and down fall effect.

[0028] 3) In this invention, if the airflow generated by the extrusion pressure is insufficient to separate adjacent folds, the folds form the first barrier, making it difficult for down to enter the first cavity and the second cavity. The second cavity and the adhesive layer form the second barrier, making it difficult for down to enter the first cavity, thereby improving the anti-down leakage and down-proof effect of the stand-up down comforter.

[0029] 4) The supporting ribs in this invention can support adjacent folds, so that the folds can maintain their shape and are not easily deformed, thereby improving the long-lasting anti-down leakage and down-proof effect of the down comforter. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 This is a front sectional view of the support member, pressure member one, and pressure member two of the present invention.

[0032] Figure 3 This is an exploded view of the support member, pressure member one, and pressure member two of the present invention.

[0033] Figure 4 This is a structural schematic diagram of the pressure component of the present invention.

[0034] Figure 5 This is a schematic diagram of the structure of the second pressure component of the present invention.

[0035] In the diagram: 1. Upper fabric; 2. Lower fabric; 3. Lining; 4. Support; 41. Supporting fabric body; 42. Supporting ribs; 43. Adhesive layer; 44. First cavity; 45. Second cavity; 51. First seam; 52. Second seam; 6. Pressing component one; 61. First positioning plate; 62. First groove; 63. First protrusion; 64. Main pipe; 65. Branch pipe; 66. Recessed channel; 7. Pressing component two; 71. Second positioning plate; 72. Second groove; 73. Second protrusion; 74. Heating plate; 75. Pressing protrusion. Detailed Implementation

[0036] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0037] I. Materials

[0038] The adhesive is a polyurethane adhesive, and the amount of adhesive used is 16-20 g / m³. 2 .

[0039] The upper fabric 1, lower fabric 2, and lining fabric 3 are all commercially available 120-count nylon fabrics.

[0040] II. Methods

[0041] To investigate the impact of the support structure 4 on the performance of down jackets, Examples 1-2, a control group, and Comparative Examples 1-3 were set up, as detailed below:

[0042] Example 1

[0043] like Figure 1-5As shown, a down comforter with anti-down shifting lining includes an upper fabric 1 and a lower fabric 2, and several lining fabrics 3 sewn between the upper fabric 1 and the lower fabric 2. Supporting members 4 are sewn at the seam positions of the upper fabric 1 and the lining fabric 3, the lower fabric 2 and the lining fabric 3, and the seam positions of the left and right sides of the upper fabric 1 and the lower fabric 2.

[0044] The lining fabric 3 is composed of two layers of fabric. The upper and lower ends of the two layers of fabric are laid flat in opposite directions and sewn together with the upper layer fabric 1 and the lower layer fabric 2 respectively.

[0045] The support member 4 includes a support fabric body 41, the middle part of which is bent so that the two ends of the support fabric body 41 come into contact.

[0046] The supporting fabric body 41 is formed by the two ends of the supporting fabric body 41 to form a first cavity 44. The middle part of the supporting fabric body 41 is formed by hot pressing with interlocking pressing parts 6 and 7 to form multiple pleats. The deepest part of each pleat is fixed with a supporting rib 42 by hot pressing. The upper and lower inner sides of each pleat are bonded to each other by an adhesive layer 43. The upper and lower inner sides of each pleat after being bonded by the adhesive layer 43 form a second cavity 45.

[0047] When the supporting fabric body 41 is sewn at the seam between the upper fabric 1 or the lower fabric 2 and the upright lining 3, the first end of the supporting fabric body 41 is sewn onto the upright lining 3 through the first seam 51, and the last end of the supporting fabric body 41 is sewn onto the upper fabric 1 or the lower fabric 2 through the second seam 52.

[0048] When the supporting fabric body 41 is sewn at the left and right side seams of the upper fabric 1 and the lower fabric 2, the first end of the supporting fabric body 41 is sewn onto the upper fabric 1 through the first seam 51, and the last end of the supporting fabric body 41 is sewn onto the lower fabric 2 through the second seam 52.

[0049] The first suture 51 and the second suture 52 are both located inside the first cavity 44.

[0050] The pressing component 6 includes a fan-shaped first positioning plate 61, several first grooves 62 formed on the outer arc edge of the first positioning plate 61, two recessed channels 66 formed on the two straight edges of the first positioning plate 61 respectively, a first protrusion 63 between two adjacent first grooves 62, a main pipeline 64 formed inside the first positioning plate 61, and a branch pipeline 65 connected to the main pipeline 64 formed on the first protrusion 63.

[0051] The second pressing component 7 includes a fan-shaped second positioning plate 71, several second grooves 72 opened on the inner arc edge of the second positioning plate 71, a second protrusion 73 between two adjacent second grooves 72, a heating pressing plate 74 is provided at the end of the second protrusion 73, and pressing protrusions 75 are provided on both sides of the second protrusion 73.

[0052] A method for processing a down comforter with anti-down-shifting stand-up lining includes the following steps:

[0053] Step 1: Sew one side of the upper fabric 1 and the lower fabric 2 together. Lay the support piece 4 flat on the inner side of the sewn side of the upper fabric 1 and the lower fabric 2. Place the pressing piece 6 on the inner side of the support piece 4. The support piece 4 wraps around the outer surface of the pressing piece 6. Under the support of the pressing piece 6, sew the first end of the support piece 4 to the upper fabric 1 and the last end of the support piece 4 to the lower fabric 2.

[0054] Step 2: Lay support pieces 4 flat on both sides of the first and last ends of the interlining fabric 3, and sew the first end of the support piece 4 onto the interlining fabric 3. Place the interlining fabric 3 with the support piece 4 sewn on between the upper fabric 1 and the lower fabric 2. Place the pressure piece 6 as in Step 1. Under the support of the pressure piece 6, sew the upper fabric 1 or the lower fabric 2 together with the interlining fabric 3 and the end of the support piece 4.

[0055] Step 3: Sew the other side of the upper fabric 1 and the lower fabric 2 together, and sew the support 4 to the inner side of the other side of the upper fabric 1 and the lower fabric 2 as in Step 1.

[0056] Step 4: Place the second pressing piece 7 on the outer side of the support piece 4. The second pressing piece 7 and the first pressing piece 6 are interlocked. Place the support rib 42 between the heating plate 74 and the first groove 62 and on the outer side of the support piece 4. Through the pressing action of the first pressing piece 6 and the second pressing piece 7 and the heating action of the heating plate 74, the middle part of the support piece 4 is hot-pressed to form folds, and the support rib 42 is hot-pressed and fixed at the deepest position of each fold.

[0057] Step 5: The adhesive is delivered into the main pipe 64. The adhesive is output through the branch pipe 65 and delivered to the upper and lower inner sides of each pleat. The upper and lower sides of each pleat are bonded together by the pressing action of the protrusion 75.

[0058] Step 6: Perform hot pressing on the position where there is a pressure piece 6 above the upper fabric 1 and below the lower fabric 2 to bond and fix the side of the upper fabric 1 to the beginning of the support piece 4, the side of the lower fabric 2 to the end of the support piece 4, the upper fabric 1 to the upright lining 3, and the lower fabric 2 to the upright lining 3.

[0059] Step 7: Remove pressing piece 1 (6) and pressing piece 2 (7), sew the back sides of the upper fabric 1 and the lower fabric 2 together, fill with down, then sew the front sides of the upper fabric 1 and the lower fabric 2 together, and finally heat press the front and back sides of the upper fabric 1 and the lower fabric 2 to obtain the down-proof stand-up down comforter.

[0060] The process parameters for Examples 1 and 2 are shown in Table 1:

[0061] Table 1

[0062]

[0063] Comparative Example 1

[0064] A down comforter with anti-down leakage includes an upper fabric 1 and a lower fabric 2, and several interlinings 3 sewn between the upper fabric 1 and the lower fabric 2. Supporting members 4 are sewn at the seam positions of the upper fabric 1 and the interlinings 3, the lower fabric 2 and the interlinings 3, and the seam positions of the left and right sides of the upper fabric 1 and the lower fabric 2.

[0065] The lining fabric 3 is composed of two layers of fabric. The upper and lower ends of the two layers of fabric are laid flat in opposite directions and sewn together with the upper layer fabric 1 and the lower layer fabric 2 respectively.

[0066] The support member 4 includes a support fabric body 41, the middle part of which is bent so that the two ends of the support fabric body 41 come into contact, and the two ends of the support fabric body 41 together form a first cavity 44.

[0067] When the supporting fabric body 41 is sewn at the seam between the upper fabric 1 or the lower fabric 2 and the upright lining 3, the first end of the supporting fabric body 41 is sewn onto the upright lining 3 through the first seam 51, and the last end of the supporting fabric body 41 is sewn onto the upper fabric 1 or the lower fabric 2 through the second seam 52.

[0068] When the supporting fabric body 41 is sewn at the left and right side seams of the upper fabric 1 and the lower fabric 2, the first end of the supporting fabric body 41 is sewn onto the upper fabric 1 through the first seam 51, and the last end of the supporting fabric body 41 is sewn onto the lower fabric 2 through the second seam 52.

[0069] The first suture 51 and the second suture 52 are both located inside the first cavity 44.

[0070] The pressing component 6 includes a fan-shaped first positioning plate 61 and two recessed channels 66 respectively opened on the two straight edges of the first positioning plate 61, which are recessed channels 66 provided to facilitate sewing.

[0071] A method for processing a down comforter with anti-down-shifting stand-up lining includes the following steps:

[0072] Step 1: Sew one side of the upper fabric 1 and the lower fabric 2 together. Lay the support piece 4 flat on the inner side of the sewn side of the upper fabric 1 and the lower fabric 2. Place the pressing piece 6 on the inner side of the support piece 4. The support piece 4 wraps around the outer surface of the pressing piece 6. Sew the first end of the support piece 4 onto the upper fabric 1 and the last end of the support piece 4 onto the lower fabric 2.

[0073] Step 2: Lay the support piece 4 flat on both sides of the first and last ends of the upright lining fabric 3, and sew the first end of the support piece 4 onto the upright lining fabric 3. Place the upright lining fabric 3 with the support piece 4 sewn on between the upper fabric 1 and the lower fabric 2 in sequence. Place the pressing piece 6 in the same way as in Step 1, and sew the upper fabric 1 or the lower fabric 2 together with the upright lining fabric 3 and the end of the support piece 4.

[0074] Step 3: Sew the other side of the upper fabric 1 and the lower fabric 2 together, and sew the support 4 to the inner side of the other side of the upper fabric 1 and the lower fabric 2 as in Step 1.

[0075] Step 4: Perform hot pressing on the position where the upper fabric 1 is supported by the pressure piece 6 and the lower fabric 2 is below, so that the side of the upper fabric 1 is bonded to the first end of the support piece 4, the side of the lower fabric 2 is bonded to the last end of the support piece 4, the upper fabric 1 is bonded to the lining 3, and the lower fabric 2 is bonded to the lining 3.

[0076] The hot pressing temperature is 150℃, and the hot pressing pressure is 5MPa;

[0077] Step 5: Remove the pressing piece 6, sew the back sides of the upper fabric 1 and the lower fabric 2 together, fill with down, then sew the front sides of the upper fabric 1 and the lower fabric 2 together, and then heat press the front and back sides of the upper fabric 1 and the lower fabric 2 to obtain the down-proof stand-up down comforter.

[0078] Comparative Example 2

[0079] A down comforter with anti-down leakage includes an upper fabric 1 and a lower fabric 2, and several interlinings 3 sewn between the upper fabric 1 and the lower fabric 2. Supporting members 4 are sewn at the seam positions of the upper fabric 1 and the interlinings 3, the lower fabric 2 and the interlinings 3, and the seam positions of the left and right sides of the upper fabric 1 and the lower fabric 2.

[0080] The lining fabric 3 is composed of two layers of fabric. The upper and lower ends of the two layers of fabric are laid flat in opposite directions and sewn together with the upper layer fabric 1 and the lower layer fabric 2 respectively.

[0081] The support member 4 includes a support fabric body 41, the middle part of which is bent so that the two ends of the support fabric body 41 come into contact.

[0082] The first cavity 44 is formed by the two ends of the supporting fabric body 41. The middle part of the supporting fabric body 41 is formed by hot pressing with interlocking pressing parts 6 and 7 to form multiple layers of pleats.

[0083] When the supporting fabric body 41 is sewn at the seam between the upper fabric 1 or the lower fabric 2 and the upright lining 3, the first end of the supporting fabric body 41 is sewn onto the upright lining 3 through the first seam 51, and the last end of the supporting fabric body 41 is sewn onto the upper fabric 1 or the lower fabric 2 through the second seam 52.

[0084] When the supporting fabric body 41 is sewn at the left and right side seams of the upper fabric 1 and the lower fabric 2, the first end of the supporting fabric body 41 is sewn onto the upper fabric 1 through the first seam 51, and the last end of the supporting fabric body 41 is sewn onto the lower fabric 2 through the second seam 52.

[0085] The first suture 51 and the second suture 52 are both located inside the first cavity 44.

[0086] The pressing component 6 includes a fan-shaped first positioning plate 61, several first grooves 62 formed on the outer arc edge of the first positioning plate 61, two recessed channels 66 formed on the two straight edges of the first positioning plate 61 respectively, and a first protrusion 63 between two adjacent first grooves 62.

[0087] The second pressure component 7 includes a fan-shaped second positioning plate 71, several second grooves 72 opened on the inner arc edge of the second positioning plate 71, a second protrusion 73 between two adjacent second grooves 72, and a heating pressure plate 74 provided at the end of the second protrusion 73.

[0088] A method for processing a down comforter with anti-down-shifting stand-up lining includes the following steps:

[0089] Step 1: Sew one side of the upper fabric 1 and the lower fabric 2 together. Lay the support piece 4 flat on the inner side of the sewn side of the upper fabric 1 and the lower fabric 2. Place the pressing piece 6 on the inner side of the support piece 4. The support piece 4 wraps around the outer surface of the pressing piece 6. Sew the first end of the support piece 4 onto the upper fabric 1 and the last end of the support piece 4 onto the lower fabric 2.

[0090] Step 2: Lay the support piece 4 flat on both sides of the first and last ends of the upright lining fabric 3, and sew the first end of the support piece 4 onto the upright lining fabric 3. Place the upright lining fabric 3 with the support piece 4 sewn on between the upper fabric 1 and the lower fabric 2 in sequence. Place the pressing piece 6 in the same way as in Step 1, and sew the upper fabric 1 or the lower fabric 2 together with the upright lining fabric 3 and the end of the support piece 4.

[0091] Step 3: Sew the other side of the upper fabric 1 and the lower fabric 2 together, and sew the support 4 to the inner side of the other side of the upper fabric 1 and the lower fabric 2 as in Step 1.

[0092] Step 4: Place the second pressing piece 7 on the outer side of the support piece 4. The second pressing piece 7 and the first pressing piece 6 are interlocked. Through the pressing action of the first pressing piece 6 and the second pressing piece 7 and the heating action of the heating plate 74, the middle part of the support piece 4 is hot-pressed to form folds.

[0093] The hot pressing temperature is 215℃, and the hot pressing pressure is 7MPa.

[0094] Step 5: Perform hot pressing on the position where the upper fabric 1 is supported by the pressure piece 6 and the lower fabric 2 is below, so that the side of the upper fabric 1 is bonded to the first end of the support piece 4, the side of the lower fabric 2 is bonded to the last end of the support piece 4, the upper fabric 1 is bonded to the lining 3, and the lower fabric 2 is bonded to the lining 3.

[0095] The hot pressing temperature is 150℃, and the hot pressing pressure is 5MPa;

[0096] Step 6: Remove pressing piece 1 (6) and pressing piece 2 (7), sew the back sides of the upper fabric 1 and the lower fabric 2 together, fill with down, then sew the front sides of the upper fabric 1 and the lower fabric 2 together, and then heat press the front and back sides of the upper fabric 1 and the lower fabric 2 to obtain a down comforter with anti-down leakage.

[0097] Comparative Example 3

[0098] In this embodiment, the difference from Embodiment 2 lies in step four, specifically:

[0099] Step 4: Place the second pressing piece 7 on the outer side of the support piece 4. The second pressing piece 7 and the first pressing piece 6 are interlocked. Through the pressing action of the first pressing piece 6 and the second pressing piece 7 and the heating action of the heating plate 74, the middle part of the support piece 4 is hot-pressed to form folds.

[0100] The remaining steps and process parameters are consistent with those in Example 2.

[0101] Blank group

[0102] A down comforter with anti-down leakage includes an upper fabric 1 and a lower fabric 2, and several interlining fabrics 3 sewn between the upper fabric 1 and the lower fabric 2.

[0103] The lining fabric 3 is composed of two layers of fabric. The upper and lower ends of the two layers of fabric are laid flat in opposite directions and sewn together with the upper layer fabric 1 and the lower layer fabric 2 respectively.

[0104] A method for processing a down comforter with anti-down-shifting stand-up lining includes the following steps:

[0105] Step 1: Sew one side of the upper fabric 1 and the lower fabric 2 together;

[0106] Step 2: Place the interlining 3 between the upper fabric 1 and the lower fabric 2 in sequence, and sew the upper fabric 1 or the lower fabric 2 to the interlining 3.

[0107] Step 3: Sew the upper fabric 1 and the lower fabric 2 together on the other side;

[0108] Step 4: Support the upper fabric 1 and lower fabric 2 with pressure piece 6 and perform hot pressing to bond and fix the upper fabric 1 and the interlining 3, and the lower fabric 2 and the interlining 3 together.

[0109] The hot pressing temperature is 150℃, and the hot pressing pressure is 5MPa;

[0110] Step 5: Remove the pressing piece 6, sew the back sides of the upper fabric 1 and the lower fabric 2 together, fill with down, then sew the front sides of the upper fabric 1 and the lower fabric 2 together, and then heat press the front and back sides of the upper fabric 1 and the lower fabric 2 to obtain the down-proof stand-up down comforter.

[0111] That is, the blank group has no support piece 4 sewn on.

[0112] The down jackets produced according to Examples 1-2, Comparative Examples 1-3, and the blank group were tested for their down-proof performance.

[0113] The test method for down-proof performance is based on the determination method in GB-T 12705.2-2009 "Textiles - Test Method for Down-proof Performance of Fabrics". The test consists of two rounds, specifically...

[0114] The first round consisted of unwashed down comforter test blocks;

[0115] The second round involved a down comforter test piece that had been washed 10 times and then naturally air-dried. The washing was done in a drum washing machine at a speed of 1600 rpm for 25 minutes.

[0116] The evaluation criteria for down-proof performance are shown in Table 2:

[0117] Table 2 Evaluation Standards for Down-Proof Performance

[0118] Downproof performance evaluation Number of down threads / threads It has good down-proof properties ＜5 It has down-proof properties 6-15 Poor down-proof properties ＞15

[0119] The specific test data are shown in Table 3:

[0120] Table 3 Experimental Detection Data

[0121]

[0122]

[0123] Conclusion: Based on the experimental data of the blank group and Examples 1-2, it can be seen that the blank group did not have support member 4 sewn on, while Examples 1-2 all had support member 4 sewn on. The blank group's down comforter with stand-up lining was within the standard of "poor down-proof performance" after 0 and 10 washes, while Examples 1-2 were within the standard of "good down-proof performance" after 0 washes and "good down-proof performance" after 10 washes. This indicates that sewing support member 4 at the seam between the upper fabric 1 or lower fabric 2 and the stand-up lining 3, and at the seam between the left and right sides of the upper fabric 1 and lower fabric 2, can significantly improve the down-proof performance of the down comforter with stand-up lining, and Example 2 is the optimal solution.

[0124] According to the experimental data of Example 2 and Comparative Examples 1-2, it can be seen that the scheme of Comparative Example 1 is that the support member 4 includes a support fabric body 41, and the middle part of the support fabric body 41 is a smooth section, without the multi-layer folds of Example 2, and without the support ribs 42, adhesive layer 43, and second cavity 45.

[0125] Compared with the scheme in Implementation 2, the scheme in Comparative Example 2 does not have the supporting rib 42, adhesive layer 43, and second cavity 45;

[0126] Compared to Example 2, the anti-down leakage effect is significantly different. It is within the standard of "good anti-down leakage" after 0 washes and within the standard of "poor anti-down leakage" after 10 washes. This indicates that multiple layers of pleats are formed in the middle of the supporting fabric body 41. Down leakage and down leakage mainly occur under the action of compression. The down moves with the airflow towards the seam of the upper fabric 1 or lower fabric 2 and the lining 3. After each compression, the gas is discharged from the first cavity 44 and the second cavity 45, causing the adjacent pleats to close together. This can capture the down moving towards the seam of the upper fabric 1 or lower fabric 2 and the lining 3, so that the down is not easy to enter the first cavity 44 and the second cavity 45, and is not easy to leak out with the second seam 52, thereby improving the anti-down leakage and down leakage effect of the fabric.

[0127] If the airflow generated by the compression is insufficient to separate adjacent folds, the folds form the first barrier, making it difficult for down to enter the first cavity 44 and the second cavity 45. The second cavity 45 and the adhesive layer 43 form the second barrier, making it difficult for down to enter the first cavity 44, thereby improving the anti-down leakage and down-proof effect of the stand-up down comforter.

[0128] According to the experimental data of Example 2 and Comparative Example 3, the scheme of Comparative Example 3 does not have the supporting rib 42 compared with the scheme of Example 2. The function of the supporting rib 42 is to support the adjacent folds, so that the folds can maintain their shape and are not easily deformed, thereby improving the long-term anti-down leakage and down-proof effect of the down comforter.

[0129] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A down comforter with anti-down-shifting stand-up lining, characterized in that: It includes an upper fabric (1) and a lower fabric (2), and several interlinings (3) sewn between the upper fabric (1) and the lower fabric (2). Supporting members (4) are sewn at the seam positions of the upper fabric (1) and the interlinings (3), the lower fabric (2) and the interlinings (3), and the seam positions of the left and right sides of the upper fabric (1) and the lower fabric (2). The lining fabric (3) is composed of two layers of fabric. The upper and lower ends of the two layers of fabric are laid flat in opposite directions and sewn together with the upper layer fabric (1) and the lower layer fabric (2) respectively. The support member (4) includes a support fabric body (41), and the middle part of the support fabric body (41) is bent so that the two ends of the support fabric body (41) come into contact. The supporting fabric body (41) is formed by the two ends of the supporting fabric body (44) together to form a first cavity (44). The middle part of the supporting fabric body (41) is formed by hot pressing with interlocking pressure piece 1 (6) and pressure piece 2 (7), and a supporting rib (42) is fixed by hot pressing at the deepest part of each pleat. The upper and lower inner sides of each pleat are bonded to each other by an adhesive layer (43). A second cavity (45) is formed between the upper and lower inner sides of each pleat after being bonded by the adhesive layer (43).

2. The down comforter with anti-down shifting lining according to claim 1, characterized in that: When the supporting fabric body (41) is sewn at the seam between the upper fabric (1) or the lower fabric (2) and the lining (3), the first end of the supporting fabric body (41) is sewn onto the lining (3) through the first seam (51), and the last end of the supporting fabric body (41) is sewn onto the upper fabric (1) or the lower fabric (2) through the second seam (52). When the supporting fabric body (41) is sewn at the left and right side seam positions of the upper fabric (1) and the lower fabric (2), the first end of the supporting fabric body (41) is sewn onto the upper fabric (1) through the first seam (51), and the last end of the supporting fabric body (41) is sewn onto the lower fabric (2) through the second seam (52). The first suture (51) and the second suture (52) are both located inside the first cavity (44).

3. A processing method for a down comforter with anti-down shifting lining as described in any one of claims 1-2, characterized in that: Includes the following steps: Step 1: Sew one side of the upper fabric (1) and the lower fabric (2) together, and sew the support (4) onto the inner side of the upper fabric (1) and the lower fabric (2) under the support of the pressure piece (6). Step 2: Sew support pieces (4) on both sides of the first and last ends of the upright lining (3). Place the upright lining (3) with the support pieces (4) sewn on between the upper fabric (1) and the lower fabric (2). Under the support of the pressure piece (6), sew the upper fabric (1) or the lower fabric (2) together with the upright lining (3) and the end of the support piece (4). Step 3: Sew the upper fabric (1) and the lower fabric (2) on the other side as in Step 1, and sew the support piece (4); Step 4: Place the second pressing piece (7) on the outer side of the support piece (4). The second pressing piece (7) and the first pressing piece (6) are interlocked. Place several support ribs (42) on the outer side of the support piece (4). Through the pressing and heating action of the first pressing piece (6) and the second pressing piece (7), the middle part of the support piece (4) is hot-pressed to form folds, and the support ribs (42) are hot-pressed and fixed at the deepest position of each fold. Step 5: The adhesive is delivered to the upper and lower inner sides of each pleat through the pressure component 1 (6), and the upper and lower sides of each pleat are bonded together by the pressure of the pressure component 2 (7). Step 6: Hot pressing to bond and fix the sides of the upper fabric (1) to the first end of the support (4), the sides of the lower fabric (2) to the end of the support (4), the upper fabric (1) to the lining (3), and the lower fabric (2) to the lining (3). Step 7: Remove pressing piece 1 (6) and pressing piece 2 (7), sew the front and back sides of the upper fabric (1) and the lower fabric (2) and fill them with down, and then heat press to shape to obtain a down-proof stand-up down comforter.

4. The processing method of a down comforter with anti-down shifting lining according to claim 3, characterized in that: The pressure component (6) includes a fan-shaped first positioning plate (61), several first grooves (62) opened on the outer arc edge of the first positioning plate (61), two recessed channels (66) respectively opened on the two straight edges of the first positioning plate (61), a first protrusion (63) between two adjacent first grooves (62), a main pipeline (64) opened inside the first positioning plate (61), and a branch pipeline (65) connected to the main pipeline (64) opened on the first protrusion (63).

5. The processing method of a down comforter with anti-down shifting lining according to claim 3, characterized in that: The second pressing component (7) includes a fan-shaped second positioning plate (71), several second grooves (72) opened on the inner arc edge of the second positioning plate (71), a second protrusion (73) between two adjacent second grooves (72), a heating pressing plate (74) is provided at the end of the second protrusion (73), and pressing protrusions (75) are provided on both sides of the second protrusion (73).

6. The processing method of a down comforter with anti-down shifting lining according to claim 3, characterized in that: In step four, the hot pressing temperature is 200-220℃ and the hot pressing pressure is 6-8MPa.

7. The processing method of a down comforter with anti-down shifting lining according to claim 3, characterized in that: In step six, the hot-pressing temperature is 145-155℃ and the hot-pressing pressure is 4-6MPa.

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