A seamless down jacket

Abstract

The utility model relates to a seamless down jacket belongs to clothing technical field, the seamless down jacket includes inner surface layer, outer surface layer and is located between the filler of inner surface layer and outer surface layer, is equipped with a plurality of predetermined area on the inner surface layer and / or outer surface layer, the inner surface layer and outer surface layer are bonded fixed in predetermined area, and the space between inner surface layer and outer surface layer is divided into a plurality of intercommunicating closed chamber, the closed chamber distributes on the surface of whole down jacket, be equipped with filler in the closed chamber, the filler includes down, through the utility model provides a kind of filler chamber for closed type, neither can run down, and again can the seamless sewing filling down jacket of convenient production.

Description

Technical Field

[0001] This utility model relates to a seamless down jacket (i.e., a seamless down jacket), belonging to the field of clothing technology. Background Technology

[0002] Down jackets are a type of clothing filled with down, typically duck or goose down. Down jackets offer excellent warmth, and because the down is soft, it doesn't easily clump together, making it suitable as wadding and comfortable to wear. The fabrics used in down jackets are often high-density coated fabrics, which help retain more air inside, further enhancing their warmth. Traditional down jackets often use sewing to create individual chambers to prevent down filling from shifting. However, sewing allows fine, lightweight down fibers to easily escape through the needle holes, affecting future use. Existing technology, such as Chinese patent application CN113854659A, discloses a seamless down jacket and its manufacturing process. This involves connecting the various parts of the down jacket by sewing the sleeves to the front, back, and side panels, then filling the down into the filling bags and sewing them closed to obtain the down jacket. However, in this production process, because the down filling bags are still sealed with stitches, the potential problem of down leakage in down jackets is not solved. For example, Chinese patent CN209473614U discloses a novel multifunctional seamless down jacket where the upper and lower layers are fixed together by adhesive bonding to form a filling chamber, which is then filled. While this method avoids stitching and solves the problem of down leakage through needle holes, the filling chamber is relatively large, making it prone to displacement of the filling material and uneven distribution of down. Furthermore, this type of down jacket with partitioned panels requires significant manpower and resources to manufacture, making it difficult to produce. Existing technologies also involve directly bonding the inner and outer layers together, first forming a perforated chamber between the inner and outer layers, then inserting down filling tubes through the perforations for filling, filling the chamber with down, and then removing the filling tubes. However, in this type of down jacket, the connection between the two filling chambers is not closed, leading to problems of down displacement and uneven down distribution. Therefore, there is an urgent need in this technical field to obtain a seamless down jacket (i.e., a seamless down jacket) that can solve the problem of down leakage in down jackets, with a closed-type down filling chamber; which will not leak down and can be easily produced. Utility Model Content

[0003] The purpose of this invention is to solve the technical problem of how to obtain a seamless down jacket (i.e., a seamless down jacket) that can solve the problem of down leakage in down jackets, with a closed-type down filling chamber; which will not leak down and can be easily produced.

[0004] To address the aforementioned problems, the present invention provides a seamless down jacket, comprising an inner layer, an outer layer, and a filling material disposed between the inner and outer layers. The inner and / or outer layers have several predetermined areas, and the inner and outer layers are bonded and fixed within these predetermined areas, dividing the space between the inner and outer layers into multiple non-communicating closed chambers. Each closed chamber contains a filling material, which comprises down feathers.

[0005] Preferably, the edges of the inner and outer layers are bonded together to form the edges of a seamless down jacket.

[0006] Preferably, the down jacket includes several components; the components include a collar, sleeves, and torso; each component includes an inner layer, an outer layer, and a plurality of closed chambers that are not interconnected between the inner and outer layers; each closed chamber contains a filling material; the filling material includes down; the components are connected by a seamless method, the seamless method including adhesive bonding.

[0007] Preferably, the enclosed chambers are arranged sequentially adjacent to each other, and each enclosed chamber shares a common side with its adjacent chamber; the enclosed chambers are distributed across the entire surface of the down jacket.

[0008] Preferably, the inner and / or outer layers are provided with a plurality of sequentially adjacent grid-shaped predetermined areas, the edges of the grid-shaped predetermined areas are provided with adhesive areas, and the inner and outer layers are bonded and fixed to the adhesive areas provided in the grid-shaped predetermined areas to form a continuous closed cavity.

[0009] Preferably, an adhesive is provided on the predetermined area, and the adhesive includes a hot melt adhesive.

[0010] Preferably, the predetermined area includes a predetermined area one and a predetermined area two. The inner layer and the outer layer are bonded and fixed to the predetermined area one to divide the space between the inner and outer layers into multiple interconnected chambers. Through holes are provided between adjacent chambers. After filling each chamber with filler through the through holes, the inner layer and the outer layer are bonded and fixed to the predetermined area two to seal the chambers into multiple closed chambers that are not interconnected.

[0011] Preferably, the inner and / or outer layers of the seamless down jacket are provided with a plurality of sequentially adjacent grid-shaped predetermined areas, and the edges of the grid-shaped predetermined areas are provided with a continuous predetermined area one and a predetermined area two constituting the edge of the grid-shaped predetermined areas; the predetermined area one and the predetermined area two are respectively provided with the same or different types of adhesive.

[0012] This utility model provides a manufacturing process for producing the aforementioned seamless down jacket. The manufacturing process includes designating a predetermined area as a predetermined area one and a predetermined area two. The inner layer and the outer layer are bonded and fixed to the predetermined area one, dividing the space between the inner and outer layers into multiple interconnected chambers. Through holes are provided between adjacent chambers. After filling each chamber with filler through the through holes, the inner layer and the outer layer are bonded and fixed to the predetermined area two, sealing the chambers into multiple non-interconnected closed chambers.

[0013] Preferably, the down jacket in the production process includes several components; the components include a collar, sleeves, and torso; the components include an inner layer, an outer layer, and multiple non-communicating closed chambers located between the inner and outer layers; the closed chambers are filled with a filling material, the filling material being down; the components are connected by a seamless method, the seamless method including adhesive bonding.

[0014] Preferably, the seamless down jacket has a plurality of sequentially adjacent grid-shaped predetermined areas on its inner and / or outer layers, and the edges of the grid-shaped predetermined areas are provided with a continuous predetermined area one and a predetermined area two constituting the edges of the grid-shaped predetermined areas; adhesive is provided on the predetermined area one and the predetermined area two.

[0015] Preferably, the adhesive includes a hot melt adhesive; the production process includes bonding and fixing the inner layer and the outer layer to the predetermined area one by hot pressing once, dividing the space between the inner and outer layers into multiple interconnected chambers, and after each chamber is filled with filler, bonding and fixing the inner layer and the outer layer to the predetermined area two by hot pressing again to seal the chambers into multiple non-interconnected closed chambers.

[0016] This utility model provides a molding device for manufacturing the above-mentioned seamless down jacket. The predetermined area includes a predetermined area one and a predetermined area two. The molding device includes a module one and a module two corresponding to the predetermined area one and the predetermined area two, respectively. The module one and the module two control the outer layer and the inner layer to be bonded and fixed at the predetermined area one and the predetermined area two through molding, so that the space between the inner and outer layers is successively divided into multiple interconnected chambers and multiple closed chambers that are not interconnected.

[0017] Preferably, the seamless down jacket has a plurality of sequentially adjacent grid-shaped predetermined areas on its inner and / or outer layers, and the edges of the grid-shaped predetermined areas are provided with continuous predetermined areas one and two, which form the edges of the grid-shaped predetermined areas; adhesive is provided on predetermined areas one and two; the molding device includes module one and module two corresponding to predetermined areas one and two, respectively; module one and module two control the outer and inner layers to be bonded and fixed at predetermined areas one and two through molding, so that the space between the inner and outer layers is successively divided into multiple interconnected chambers and multiple closed chambers that are not interconnected.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The seamless down jacket with filling disclosed in this utility model first fixes a portion of the inner and outer layers with adhesive to divide the space between the inner and outer layers into multiple interconnected chambers. Then, each chamber is filled with down through filling tubes. After filling, a portion of the inner and outer layers is fixed with adhesive again to divide the space between the inner and outer layers into multiple closed chambers with filling that are not interconnected, thereby sealing the filling, preventing down leakage, and solving the technical problem of filling movement.

[0020] The seamless down jacket provided by this utility model uses an adhesive bonding process, which fixes the perimeter of the sealed chamber, the edges of the down jacket, and the joints between the various components of the down jacket through adhesive bonding. This overcomes the drawback of traditional down jackets, which are sewn by sewing, where down can easily escape from the needle holes. The adhesive bonding also prevents heat from escaping through the needle holes, thus improving the heat insulation performance of the down jacket. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of the left front panel assembly of the seamless down jacket of this utility model.

[0022] Figure 2 This is a side view of the closed cavity structure of the left front panel assembly of the seamless down jacket of this utility model after filling.

[0023] Figure 3 This is a schematic diagram of module one in the molding device of the hot pressing mold for the left front panel assembly of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the left front panel assembly of the seamless down jacket of this utility model during down filling;

[0025] Figure 5 This is a schematic diagram of module two in the molding device of the hot pressing mold for the left front panel assembly of this utility model;

[0026] Reference numerals: 1. Front panel; 2. Outer layer; 3. Inner layer; 4. Filler; 5. Pre-defined area; 6. Pre-defined area one; 7. Pre-defined area two; 8. Continuous cavity; 9. Edge cavity; 10. Through hole; 11. Module one; 12. Module two; 13. Filling channel. Detailed Implementation

[0027] To make this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings:

[0028] like Figure 1-5 As shown, this utility model provides a seamless down jacket, which includes an inner layer 3, an outer layer 2, and a filling material 4 disposed between the inner layer 3 and the outer layer 2. The inner layer 3 and / or the outer layer 2 are provided with a plurality of predetermined areas 5. The inner layer 3 and the outer layer 2 are bonded and fixed in the predetermined areas 5, dividing the space between the inner layer 3 and the outer layer 2 into a plurality of closed chambers that are not interconnected. The closed chambers are provided with the filling material 4, which includes down.

[0029] The down jacket includes several components; the components include a collar, sleeves and torso; each component includes an inner layer 3, an outer layer 2 and multiple non-communicating closed chambers located between the inner layer 3 and the outer layer 2; each closed chamber contains a filling material 4; the filling material 4 includes down; the components are connected by a seamless method, including adhesive bonding.

[0030] The enclosed chambers are sequentially adjacent, and each enclosed chamber shares a common side with its adjacent chamber; the enclosed chambers are distributed across the entire surface of the down jacket. An adhesive, including hot melt adhesive, is applied to the predetermined area 5.

[0031] In one embodiment, the inner layer 3 and / or outer layer 2 of the seamless down jacket are provided with a plurality of sequentially adjacent grid-shaped predetermined areas, and the edges of the grid-shaped predetermined areas are provided with adhesive areas. The inner and outer layers are bonded and fixed to the adhesive areas provided in the grid-shaped predetermined areas to form a continuous closed cavity.

[0032] The enclosed chamber is filled with a fibrous material; the type of the filling material includes down.

[0033] The bonding area is coated with adhesive. The adhesive can be hot melt adhesive, photosensitive adhesive, etc., which require a specific physical or chemical technique to activate the adhesive's tackiness in order to fix and connect the parts coated with the adhesive.

[0034] Adhesive is applied to different areas around the sealed chamber. By activating the adhesive in different areas twice, the chamber to be sealed first forms a semi-closed state, and then forms a fully closed state.

[0035] The adhesive in a certain area is activated for the first time, so that the closed chamber is in a semi-closed state. In the semi-closed state, the filling channel 13 formed by the through hole 10 between the chambers is filled with down. After the filling is completed, the adhesive in the remaining areas is activated for the second time, so that the semi-closed chamber is in a fully closed state.

[0036] In the following embodiments, the adhesive is in the form of a hot melt adhesive.

[0037] Example 1

[0038] This utility model provides a seamless down jacket with filling 4, such as Figure 1-5 As shown, this embodiment uses the left front panel 1 of a down jacket as an example to illustrate the structure of a seamless down jacket;

[0039] The front panel 1 includes an inner layer 3, an outer layer 2, and a filler 4 disposed between the inner layer 3 and the outer layer 2. The inner layer 3 and / or the outer layer 2 are provided with a plurality of predetermined areas 5. The inner layer 3 and the outer layer 2 are bonded and fixed in the predetermined areas 5, dividing the space between the inner layer 3 and the outer layer 2 into a plurality of closed chambers that are not interconnected. The closed chambers are provided with the filler 4. The filler 4 is down.

[0040] The outer layer 2 and inner layer 3 of the front sheet 1 are respectively provided with continuous regular or irregular grid patterns, and hot melt adhesive is provided along the edge of the continuous grid.

[0041] The edge of each cell is divided into a predetermined area 6 and a predetermined area 7; the predetermined area 6 and the predetermined area 7 form the edge of a continuous cell; hot melt adhesive is applied to both the predetermined area 6 and the predetermined area 7.

[0042] The continuous grids on the inner and outer layers correspond to each other and are fixed together by hot-pressing with hot melt adhesive at the grid edges; the hot melt adhesive in the predetermined area 6 at the grid edge is first fixed together by hot-pressing to form an unclosed chamber.

[0043] These unclosed chambers form multiple interconnected chambers between the inner and outer layers. These chambers are continuous cavities 8 with continuous through holes 10. Some chambers are also edge chambers 9 on one side of the front piece 1. The side of the edge chamber 9 facing the front piece 1 is not closed and also has through holes 10. The through holes 10 form the down filling channel 13.

[0044] A single continuous cavity 8 can be a three-dimensional geometric shape. Multiple continuous cavities 8 extend from one side of the front panel 1 to the other side, distributed in the area between the inner and outer layers. The down filling pipe enters the multiple continuous cavities 8 sequentially from one side of the front panel 1 through the through hole 10 (i.e., through the down filling channel 13) until it reaches the other side of the front panel 1. Down filling is carried out sequentially through the down filling pipe into the continuous cavities 8. When one cavity is filled, the down filling pipe exits from the channel 10 and enters an adjacent continuous cavity 8 to fill the second continuous cavity 8. In the edge cavities 9 at the edge of the front panel 1, down filling is carried out directly through the unclosed side of the edge cavity 9. This operation is repeated until all unclosed cavities are filled with filler, thus completing the down filling of each cavity.

[0045] Seamless down jackets can be filled with duck down or goose down.

[0046] After the filling is completed, it is hot-pressed again to fix the hot melt adhesive of the predetermined area 7 of the grid edge together by hot pressing, forming a series of closed chambers; thus completing a series of closed chambers with multiple non-interconnected fillings.

[0047] The shape of the enclosed chamber can be designed in a variety of geometric shapes.

[0048] The other components of the seamless down jacket, such as the back panel, side panels, sleeves, and collar, have the same structure as the front panel. These components are then glued together to complete the manufacturing of the entire seamless down jacket.

[0049] Example 2

[0050] This utility model provides a manufacturing process for seamless down jackets. The seamless down jacket includes several components, including a front piece, a back piece, side pieces, sleeves, and a collar. The components are then connected together by adhesive. This embodiment uses the left front piece 1 of the down jacket as an example to illustrate the manufacturing process of the components. The components are then connected together by adhesive to complete the manufacturing of the entire seamless down jacket.

[0051] The left front panel 1 includes an outer layer 2, an inner layer 3, and a filler 4 disposed between the inner and outer layers. The outer layer 2 and / or the inner layer 3 are provided with a plurality of predetermined areas 5. The outer layer 2 and the inner layer 3 are bonded and fixed in the predetermined areas 5, dividing the space between the inner and outer layers into a plurality of closed chambers that are not interconnected. The closed chambers are provided with the filler 4. The filler 4 is down.

[0052] The production process provided by this utility model includes dividing a predetermined area 5 into a predetermined area 6 and a predetermined area 7. The outer layer 2 and the inner layer 3 are first bonded and fixed to the predetermined area 6, dividing the space between the inner and outer layers into multiple interconnected chambers. There are through holes 10 between adjacent chambers. After filling each chamber with filler 4 through the through holes 10, the outer layer 2 and the inner layer 3 are then bonded and fixed to the predetermined area 7, sealing the above chambers into multiple closed chambers that are not interconnected.

[0053] In a specific embodiment, the outer layer 2 and / or inner layer 3 of the front sheet 1 are provided with a plurality of sequentially adjacent grid-shaped predetermined regions 5. The edges of the grid-shaped predetermined regions 5 are provided with continuous predetermined regions 1 and 2 7 that form the edges of the grid-shaped predetermined regions. The predetermined regions 1 and 2 7 are provided with adhesive. The adhesive is a hot melt adhesive. The production process includes bonding and fixing the outer layer 2 and the inner layer 3 to the predetermined region 1 6 by hot pressing once, dividing the space between the inner and outer layers into multiple interconnected chambers. After filling each chamber with filler, the outer layer 2 and the inner layer 3 are bonded and fixed to the predetermined region 2 7 by hot pressing again, thereby sealing the above-mentioned unclosed chambers into multiple non-interconnected closed chambers.

[0054] The production method includes the following steps:

[0055] Step 1: Prepare different fabrics to serve as the inner layer 3 and outer layer 2 of the seamless down jacket. According to the shape of the sample garment, cut the fabrics into the required shapes, including two front torso pieces, one back torso piece, two side torso pieces, two front sleeve pieces, and two back sleeve pieces. Each component includes one inner layer 3 and one outer layer 2.

[0056] Taking the production of the anterior section of the torso as an example:

[0057] Step 2: Set corresponding continuous grids of the same size and shape on the inner layer 3 and the outer layer 2 respectively, with the edges of the continuous grids covering the edges of the front sheet;

[0058] Apply hot melt adhesive along the edge of the continuous grid; set the edge of the continuous grid as predetermined area 6 and predetermined area 7, and apply the same or different hot melt adhesive to predetermined area 6 and predetermined area 7.

[0059] Step 3: Align the continuous grids on the inner and outer layers of the front piece 1 of the torso and place them together in a hot press for the first hot press. At this time, the heating mold in the hot press only heats the predetermined area 6 and does not heat the predetermined area 7. Through this hot press, the inner layer 3 and the outer layer 2 are bonded and fixed at the predetermined area 6, and the space between the inner and outer layers is divided into multiple interconnected chambers, including continuous chambers 8 and edge chambers 9.

[0060] Step 4: The down filling pipe 13 enters the multiple continuous cavities 8 sequentially from one side of the front piece 1 through the through hole 10 until it reaches the other side of the front piece 1; down filling is carried out sequentially in the continuous cavities 8 through the down filling pipe 10; when one cavity is filled, the down filling pipe 10 exits from the channel and enters an adjacent continuous cavity 8, and then fills the second continuous cavity 8; in the edge cavity 9 at the edge of the front piece 1, down filling is carried out directly through the unclosed side of the edge cavity 9; this operation is repeated until all unclosed cavities are filled with filling material; the filling material is duck down or goose down.

[0061] Step 5: Restart the hot press for a second hot press; the heating mold in the hot press only heats the predetermined area 2 7, and does not heat the predetermined area 1 6; through this hot press, the inner layer 3 and the outer layer 2 are bonded and fixed at the predetermined area 2 7, completely sealing the unsealed cavity in step 4, thus completing the production of the front piece of the torso.

[0062] The above steps 2-5 can be repeated to make the torso side panel, torso back panel, sleeves and other components of the down jacket.

[0063] Step 6, Overall bonding: Bond the components filled in the above steps in sequence to obtain the down jacket body. Then, glue the collar to the down jacket body and the hood to the back of the collar to obtain a complete seamless down jacket.

[0064] Example 3

[0065] This utility model provides a molding device for manufacturing seamless down jackets;

[0066] This embodiment takes the molding device for making the front piece of a seamless down jacket as an example; the molding devices for other components have similar structures.

[0067] The seamless down jacket front panel 1 includes an outer layer 2, an inner layer 3, and a filling material 4 disposed between the inner and outer layers. The outer layer 2 and / or the inner layer 3 are provided with a plurality of predetermined areas 5. The outer layer 2 and the inner layer 3 are bonded and fixed to the predetermined areas 5, dividing the space between the inner and outer layers into a plurality of closed chambers that are not interconnected. The closed chambers are provided with the filling material 4. The predetermined areas 5 include a first predetermined area 6 and a second predetermined area 7.

[0068] like Figure 3 , Figure 5 As shown, the molding device includes components corresponding to the first hot melt adhesive area (i.e., predetermined area 6). Figure 4 The solid line section) and the second hot melt adhesive area (i.e., the predetermined area 27) Figure 4The dashed section in the middle) includes module 11 and module 2 12; module 11 and module 2 12 are controlled by hot pressing to bond and fix the outer layer 2 and the inner layer 3 to the predetermined area 6 and the predetermined area 7, so that the space between the inner and outer layers is successively divided into multiple interconnected chambers and multiple closed chambers that are not interconnected.

[0069] In this embodiment, the outer layer 2 and / or inner layer 3 of the seamless down jacket front piece 1 are respectively provided with a plurality of sequentially adjacent grid-shaped predetermined regions 5. The edges of the grid-shaped predetermined regions 5 are provided with continuous predetermined regions 6 and 7 forming the edges of the grid-shaped predetermined regions 5. Hot melt adhesive is provided on the predetermined regions 6 and 7. The molding device of the hot press includes modules 11 and 12 corresponding to the predetermined regions 6 and 7 respectively. The modules 11 and 12 control the outer layer 2 and inner layer 3 to be bonded and fixed at the predetermined regions 6 and 7 by hot pressing, so that the space between the inner and outer layers is successively divided into multiple interconnected chambers and multiple closed chambers that are not interconnected.

[0070] like Figure 3 , Figure 5 The diagram shown is a structural schematic of module 11 and module 2 12 in the molding device of the hot pressing mold of this utility model.

[0071] In this embodiment, the molding device of this utility model is a combined, embedded combination mold; specifically: the structure of module one 11 is a heating plate with a diamond-shaped gap in the middle and a triangular notch at the edge. The heating plate has an independent heating source (such as electric heating) and a cooling source (such as water cooling); the protruding part of module two 12 (i.e., the diamond part and the triangular part) is provided in the diamond-shaped gap and the triangular notch; module two 12 has an independent heating source (such as electric heating) and a cooling source (such as water cooling), and can extend into the diamond-shaped part and the triangular part of the gap of the heating plate of module one 11, and can independently control the heating or cooling of the heating plate of module one 11.

[0072] During the first hot pressing of the front sheet 1, module 11 is energized and heated, while module 2 is cooled by water. This causes the hot melt adhesive in the first hot melt adhesive area (i.e., predetermined area 6) to melt, while the adhesive in the second hot melt adhesive area (i.e., predetermined area 7) remains unheated and unchanged. Through this hot pressing, the outer layer 2 and the inner layer 3 are bonded and fixed at predetermined area 6, dividing the space between the inner and outer layers into multiple interconnected chambers, including a continuous chamber 8 and an edge chamber 9.

[0073] After the down filling is completed, the hot press is turned on again; water is circulated to cool the heating mold module 11 in the hot press, and electricity is circulated to heat the module 2 12.

[0074] Alternatively, module 11 no longer contacts the fabric, but only the diamond and triangular parts of module 2 12 extend out of the gap in module 11 to contact the fabric. At this time, module 2 12 is energized and heated; the second hot melt adhesive area (i.e., predetermined area 2 7) is heated, while the first hot melt adhesive area (i.e., predetermined area 1 6) is not heated; the outer layer 2 and the inner layer 3 are bonded and fixed at predetermined area 2 7 through this hot pressing, and the previously unsealed chamber is completely sealed to complete the seamless down jacket front piece with multiple non-interconnected filled sealed chambers.

[0075] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A seamless down jacket, characterized in that, The down jacket includes an inner layer, an outer layer, and a filling material disposed between the inner layer and the outer layer. The inner layer and / or the outer layer are provided with a plurality of predetermined areas. The inner layer and the outer layer are bonded and fixed in the predetermined areas, dividing the space between the inner layer and the outer layer into a plurality of closed chambers that are not interconnected. The closed chambers are provided with filling material, which includes down.

2. A seamless down jacket according to claim 1, characterized in that, The down jacket includes several components; each component includes a collar, sleeves, and torso; each component includes an inner layer, an outer layer, and multiple non-communicating closed chambers located between the inner and outer layers; each closed chamber contains a filling material, which includes down; the components are connected by a seamless method, including adhesive bonding.

3. A seamless down jacket according to claim 1, characterized in that, The enclosed chambers are arranged sequentially next to each other, and each enclosed chamber shares a common side with its adjacent chamber; the enclosed chambers are distributed across the entire surface of the down jacket.

4. A seamless down jacket according to claim 1, characterized in that, The inner and / or outer layers are provided with a plurality of sequentially adjacent grid-shaped predetermined areas, and the edges of the grid-shaped predetermined areas are provided with adhesive areas. The inner and outer layers are bonded and fixed to the adhesive areas provided in the grid-shaped predetermined areas to form a continuous closed cavity.

5. A seamless down jacket according to claim 1, characterized in that, An adhesive is provided on the predetermined area, and the adhesive includes a hot melt adhesive.

6. A seamless down jacket according to claim 1, characterized in that, The predetermined area includes a predetermined area one and a predetermined area two. The inner layer and the outer layer are bonded and fixed to the predetermined area one to divide the space between the inner and outer layers into multiple interconnected chambers. Through holes are provided between adjacent chambers. After filling each chamber with filler through the through holes, the inner layer and the outer layer are bonded and fixed to the predetermined area two to seal the chambers into multiple closed chambers that are not interconnected.

7. A seamless down jacket according to claim 1, characterized in that, The seamless down jacket has a plurality of sequentially adjacent grid-shaped predetermined areas on its inner and / or outer layers. The edges of the grid-shaped predetermined areas are provided with a continuous predetermined area one and a predetermined area two that form the edges of the grid-shaped predetermined areas. The predetermined area one and the predetermined area two are respectively provided with the same or different types of adhesive.

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