A thermal article and method of making the same

Abstract

This invention discloses a thermal insulation product and its preparation method. The thermal insulation product includes a first fabric layer, a second fabric layer, and multiple partition strips spaced between the two. The filling cavity formed by these three layers is more three-dimensional and has a larger filling volume compared to the quilted structure filling cavity in the prior art, thereby improving the product's thermal insulation performance. The partition strips have cavities, and movable supporting structures are also provided in the cavities. The supporting structures can improve the thermal insulation performance of the partition strip area on the one hand, and support and press the first and second partition strips on the other hand, generating a pulling force from the middle to both sides. This makes it easier for the partition strip area to create a difference in elevation with other areas of the thermal insulation product, improving the sense of layering of the thermal insulation product, reducing its overall visual heaviness, and achieving a combination of warmth, aesthetics, and fashion.

Description

Technical Field

[0001] This invention belongs to the field of clothing manufacturing, and particularly relates to a thermal insulation product and its manufacturing method. Background Technology

[0002] Quilted structures are currently the most common type of thermal clothing structure. By sewing the outer and inner layers of the garment together with thread at predetermined quilting points, the outer and inner layers are fixed together, preventing the thermal fillings (such as down, cotton fibers, etc.) in each quilting grid from mixing. At the same time, various grids, patterns, or lines can be formed on the outer layer through the sewing thread, combining aesthetics and practicality.

[0003] Existing down jacket stitching methods mainly include two approaches: one is to sew around the inner lining, fill it with down, pat it evenly, and then quilt; the other is to quilt first and then fill it with down. However, both methods result in a quilted structure where the area near the seam is narrow, making it difficult for down to stay in place, creating hollow or thin down areas (see reference). Figure 1 As shown in area A), human body heat easily dissipates outward from this openwork or thin fleece area, seriously affecting the clothing's warmth retention effect, a problem that needs further improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a thermal insulation product, a thermal insulation product having the same, and a method for preparing the same, in order to overcome the above-mentioned defects in the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A thermal insulation product comprising:

[0007] First fabric layer;

[0008] The second fabric layer is disposed inside or outside the first fabric layer.

[0009] A partition strip is spaced between the first fabric layer and the second fabric layer to separate multiple filling cavities between the first fabric layer and the second fabric layer. The partition strip includes a first spacer and a second spacer connected between the first fabric layer and the second fabric layer, and a cavity is formed between the first spacer and the second spacer.

[0010] Thermal insulation filler is movably filled in the plurality of filling cavities;

[0011] A support structure is movably disposed in the cavity, the support structure comprising support strips and / or foamed particles.

[0012] Furthermore, the insulating filler includes one or a mixture of several of the following: down, silk, wool, chemical fibers, and foam particles.

[0013] Furthermore, the insulating filler is foamed particles, and the supporting structure includes foamed particles, wherein the particle size of the foamed particles is smaller than that of the foamed particles in the cavity.

[0014] Furthermore, the partition strip and the first fabric layer and / or the second fabric layer are a one-piece fabric structure. The partition strip is formed by folding the one-piece fabric structure. The partition strip includes a folded edge and a first spacer and a second spacer that overlap along the folded edge. The folded edge is connected to the first fabric layer. The end of the first spacer away from the folded edge and the end of the second spacer away from the folded edge are connected to form a connecting end. The connecting end is integrally connected to the second fabric layer.

[0015] Furthermore, the folded edge is bonded or sewn to the first fabric layer, and the end of the first spacer away from the folded edge and the end of the second spacer away from the folded edge are bonded or sewn together.

[0016] Furthermore, the folded edge is sewn to the first fabric layer to form a first connecting seam, and the end of the first spacer away from the folded edge and the end of the second spacer away from the folded edge are sewn to form a second connecting seam. The first connecting seam and the second connecting seam respectively penetrate the first fabric layer and the second fabric layer.

[0017] Furthermore, the first spacer and the second spacer are arranged parallel to each other between the first fabric layer and the second fabric layer, and the distance between the first spacer and the second spacer of the same partition strip is less than the distance between two adjacent partition strips.

[0018] Furthermore, the support strip is made of fiber or foam material.

[0019] The present invention also provides a method for preparing the above-mentioned thermal insulation product, which includes the following steps:

[0020] S1. Select a first fabric layer and a second fabric layer, and connect several sets of partition strips between the first fabric layer and the second fabric layer. Each set of partition strips includes a first spacer and a second spacer. There is a gap between the first spacer and the second spacer to form a cavity, and a filling cavity is formed between two adjacent partition strips.

[0021] S2. Fill the filling cavity with movable thermal insulation filler, and provide a movable support structure in the cavity, the support structure including support strips and / or foamed particles;

[0022] S3. Seal the openings of the filling cavity and the empty cavity.

[0023] Further, step S1 includes the following steps:

[0024] S11. Select a whole piece of fabric, bend or fold it to form a first fabric layer and a second fabric layer located inside or outside the first fabric layer; or, select two pieces of fabric as the first fabric layer and the second fabric layer located inside or outside the first fabric layer, respectively.

[0025] S12. Fold the second fabric layer at a predetermined position and with a predetermined width to form a partition strip. The partition strip includes a folded edge and a first spacer and a second spacer that overlap along the folded edge.

[0026] S13. Connect the end of the first spacer away from the folded edge and the end of the second spacer away from the folded edge to form a connecting end, and the connecting end is integrally connected to the second fabric layer.

[0027] S14. Connect the folded edge to the first fabric layer.

[0028] The beneficial effects of the present invention include at least the following:

[0029] 1. This invention, by setting a partition strip between the first and second fabric layers of the thermal insulation product, makes the filling cavity formed by the three layers more three-dimensional compared to the filling cavity of the quilted structure in the prior art. This eliminates the hollow area or thin fleece area at the quilting, preventing heat from dissipating outward quickly through this area. At the same time, the partition strip of this invention increases the filling volume of the filling cavity, allowing for more thermal insulation filler to be filled, which can further improve the warmth of the product. In addition, a movable supporting structure is also set in the cavity of the partition strip. This does not destroy the three-dimensionality of the partition strip. The supporting structure can improve the warmth of the partition strip area on the one hand, and support and press the first and second spacers on the other hand, generating a pulling force from the middle to both sides. The direction of this force can also change with the movement of the supporting structure in the cavity, thereby making it easier to create a difference in elevation between the partition strip area and other areas of the thermal insulation product, improving the sense of layering of the thermal insulation product, reducing its overall visual heaviness, and combining warmth, beauty and fashion into one.

[0030] 2. In the thermal insulation product provided by the present invention, the partition strip and the first fabric layer and / or the second fabric layer are set as a one-piece fabric structure, and the partition strip is formed by folding the one-piece fabric structure. This not only makes use of the material to its fullest potential, eliminating the need for splicing multiple complex fabrics or other materials, reducing complexity and cutting, and greatly improving the ease of processing; but also maintains a high degree of overall uniformity and enhances aesthetics. Attached Figure Description

[0031] Figure 1 : A schematic diagram of the quilting structure provided in the prior art;

[0032] Figure 2 : A schematic diagram of a thermal insulation product provided in a specific embodiment of the present invention;

[0033] Figure 3 : An exploded view of a thermal insulation product provided in a specific embodiment of the present invention (thermal insulation filler and supporting structure are not shown);

[0034] Figure 4 A schematic diagram of step S11 in the preparation method of thermal insulation fabric provided in a specific embodiment of the present invention, in which a whole piece of fabric is bent to form a first fabric layer and a second fabric layer;

[0035] Figure 5 A schematic diagram of step S12 in the method for preparing thermal insulation fabric according to a specific embodiment of the present invention, in which a one-piece fabric is folded into a second fabric layer and a partition strip.

[0036] Figure 6 : A structural diagram of a thermal insulation product provided in another embodiment of the present invention (thermal insulation filler and supporting structure are not shown).

[0037] The labels in the attached diagram are:

[0038] 10. First fabric layer;

[0039] 20. Second fabric layer;

[0040] 30. Partition strip; 301. First spacer; 302. Second spacer; 303. Cavity; 304. Folded edge;

[0041] 40. Filling cavity; 401. Thermal insulation filler;

[0042] 50. Support and compression structure. Detailed Implementation

[0043] The existing technology has a technical problem where the area near the seam of the quilted structure of down jackets is narrow, and down cannot stay inside, forming a hollow or thin down area. The body's heat can easily dissipate outward from this hollow or thin down area, which seriously affects the warmth retention of the clothing.

[0044] Therefore, the present invention proposes a new technical solution, and the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0045] Contents not described in detail in this specification are prior art known to those skilled in the art. In the description of this invention, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Example 1:

[0047] Reference Figures 1-5 As shown, this embodiment provides a thermal insulation product, such as clothing, quilt, pillow, mattress, or sleeping bag, which includes a first fabric layer 10, a second fabric layer 20, and partition strips 30. The second fabric layer 20 is disposed inside or outside the first fabric layer 10. Multiple partition strips 30 are spaced apart between the first fabric layer 10 and the second fabric layer 20, thereby creating multiple filling cavities 40 between the first fabric layer 10 and the second fabric layer 20. By enclosing the first fabric layer 10, the second fabric layer 20, and the partition strips 30, the filling cavities 40 are sealed. Each filling cavity 40 is filled with movable thermal insulation filler 401. In this embodiment, partition strips 30 are provided between the first fabric layer 10 and the second fabric layer 20, so that the filling cavity 40 formed by the three layers is similar to the filling cavity of a quilted structure in the prior art (see reference). Figure 1 Compared to the previous version, it is more three-dimensional, eliminating the hollow areas or thin fleece areas at the quilting seams, preventing heat from quickly dissipating outward through these areas, and increasing the filling volume of the filling cavity, allowing for more thermal insulation filler 401 to be filled, which can further improve the warmth retention of the product.

[0048] Specifically, the insulating filling 401 can be down, silk, wool, chemical fibers, foam particles, or a mixture of two or more of these. It can move within the filling cavity 40 with human movement or external force. The gaps between the filling materials contain a certain amount of air. Due to the small gaps, air convection is poor, making it difficult for cold air from the outside to reach the inside, and conversely, it is difficult for hot air from the inside to escape. This helps maintain the temperature. This is the insulation principle of existing down jackets and other thermal insulation products.

[0049] The partition strip 30 is made of flexible fabric, allowing it to freely tilt towards the adjacent filling cavities 40, improving wearing comfort. The partition strip 30 includes a first spacer 301 and a second spacer 302, with both ends of the first spacer 301 and the second spacer 302 respectively connected to a first fabric layer 10 and a second fabric layer 20, forming a cavity 303 between the first spacer 301 and the second spacer 302. The partition strip also includes a support structure 50 movable within the cavity 303, comprising support strips and / or foam particles. The support strips can be made of fiber or foam material. A movable support structure 50 is provided in the cavity 303, which does not destroy the three-dimensionality of the partition strip 30. The support structure 50, including the support strip / or foam particles, can improve the heat preservation of the partition strip 30 area on the one hand, and support the first spacer 301 and the second spacer 302 on the other hand, generating a pulling force from the middle to both sides. The direction of this force can also change with the movement of the support structure 50 in the cavity 303, so that the partition strip 30 area is more likely to create a difference in height between the partition strip 30 area and other areas of the heat preservation product, improving the sense of layering of the heat preservation product, reducing its overall visual heaviness, and combining heat preservation, aesthetics and fashion. By setting the support structure as multiple support strips and / or foam particles, the warmth of each area can be more evenly distributed through the movement of the support strips or foam particles. Furthermore, since the cavity 303 of the partition band 30 is small and the range of movement is relatively smaller, the partition band 30 can keep warm in areas such as the shoulders where down is prone to fall and cause collapse or lack of warmth (down fall refers to the area where the down is connected to the shoulders and back, and the down in that area is prone to accumulate down to the back due to gravity).

[0050] Preferably, the insulating filler 401 is made of foamed particles, and the supporting structure 50 includes foamed particles with a particle size smaller than that of the foamed particles in the cavity. The foamed particles are polyurethane particles, TPU foamed particles, foamed particles, or high-ratio supercritical foamed particles, and the material of the foamed particles can be the same as that of the foamed particles. The filling cavity 40 is filled with smaller-diameter foamed particles, while the cavity 303 is filled with larger-diameter particles, resulting in a better supporting effect. Furthermore, when the first spacer 301 and the second spacer are subsequently connected to the fabric layer by sewing, the particles are less likely to protrude from the needle holes or gaps in the seams, further improving the warmth retention.

[0051] Reference Figure 2 Figure 5As shown, in this embodiment, the partition strip 30 and the first fabric layer 10 and / or the second fabric layer 20 form a one-piece fabric structure, and the partition strip 30 is formed by folding the one-piece fabric structure. The one-piece fabric structure refers to a structure where all components are integrally formed from a single piece of fabric, as opposed to a method where different types of fabrics / materials are pre-cut into individual parts and then spliced ​​together. Setting the partition strip 30 and the second fabric layer 20 and / or the first fabric layer 10 as a one-piece fabric structure allows for efficient use of the fabric, maximizing its utilization without the need for splicing multiple complex fabrics or other materials, reducing complexity and cutting; it also maintains a high degree of overall unity and enhances aesthetics.

[0052] Cooperate Figure 2 , Figure 3 and Figure 5 As shown, the partition strip 30 includes a folded edge 304, a first spacer 301, and a second spacer 302. The first spacer 301 and the second spacer 302 are overlapped along the folded edge 304. The folded edge 304 is the common edge of the first spacer 301 and the second spacer 302. The folded edge 304 is connected to the first fabric layer 10. One end of the first spacer 10 away from the folded edge 304 and one end of the second spacer 302 away from the folded edge 304 are connected to form a connecting end. The connecting end is integrally connected to the second fabric layer 20.

[0053] The folded edge 304 and the first fabric layer 10 can be bonded or sewn together. The end of the first spacer 301 away from the folded edge 304 and the end of the second spacer 302 away from the folded edge 304 can also be connected by bonding or sewing (see reference). Figure 5 As shown, the ends of the first spacer 301 and the second spacer 302 that are close to each other in the same partition strip are glued or sewn together away from the folded edge 304. Gluing can achieve a seamless and traceless appearance on the exposed surface of the product, resulting in a more integrated and highly concise and unified appearance.

[0054] In a specific example, the folded edge 304 is connected to the first fabric layer 10 by a stitch, forming a first connecting seam. The ends of the first spacer 301 and the second spacer 302, away from the folded edge 304, are stitched together to form a second connecting seam. The first and second connecting seams penetrate the first fabric layer 10 and the second fabric layer 20, respectively. Thus, the connecting seams are visible on both outer surfaces of the thermal insulation product (the two surfaces of the first fabric layer 10 and the second fabric layer 20 that are far apart), maintaining a quilted visual effect on the outer surfaces.

[0055] This embodiment also provides a method for preparing the above-mentioned thermal insulation product, which includes the following steps:

[0056] S1. Select a first fabric layer 10 and a second fabric layer 20, and connect several sets of partition strips 30 between the first fabric layer 10 and the second fabric layer 20. Each set of partition strips 30 includes a first spacer 301 and a second spacer 302. There is a gap between the first spacer 301 and the second spacer 302 to form a cavity 303. A filling cavity 40 is formed between two adjacent partition strips 30.

[0057] S2. A movable thermal insulation filler 401 is filled into the filling cavity 40, and a movable support structure 50 is provided in the cavity 303. The support structure 50 includes support strips 501 and / or foamed particles 502.

[0058] S3. Close the openings of the filling cavity 40 and the cavity 303.

[0059] More specifically, refer to Figure 4 and Figure 5 As shown,

[0060] Step S1 includes the following steps:

[0061] S11. Select a whole piece of fabric and bend or fold it to form a first fabric layer 10 and a second fabric layer 20 located inside or outside the first fabric layer 10; or, select two pieces of fabric as the first fabric layer 10 and the second fabric layer 20 located inside or outside the first fabric layer 10, respectively.

[0062] S12. Fold the second fabric layer 20 at a predetermined position and with a predetermined width to form a partition strip 30. The partition strip 30 includes a folded edge 304 and a first spacer 301 and a second spacer 302 overlapping along the folded edge 304 (see reference). Figure 5 As shown, Figure 5 To showcase the three-dimensional nature of the partition, the folded sections are displayed as if they were standing upright. In actual operation, because the fabric is usually flexible, they are presented as stacked sections.

[0063] S13. Connect the end of the first spacer 301 away from the folded edge 304 and the end of the second spacer 302 away from the folded edge 304 (by bonding or sewing) to form a connecting end, and the connecting end is integrally connected to the second fabric layer 20.

[0064] S14. Connect the folded edge 304 to the first fabric layer 10. This connection can be achieved by gluing or sewing.

[0065] Example 2:

[0066] The difference between this embodiment and Embodiment 1 is that:

[0067] In the thermal insulation product provided in this embodiment, the partition strip is not a one-piece fabric structure with the first fabric layer and / or the second fabric layer.

[0068] Reference Figure 6 As shown, in this embodiment, the first spacer 301 and the second spacer 302 are arranged parallel to each other between the first fabric layer 10 and the second fabric layer 20, and the spacing between the first spacer 301 and the second spacer 302 of the same partition strip 30 is less than the distance between two adjacent partition strips 30.

[0069] In the preparation of the thermal insulation product provided in this embodiment, after selecting the first fabric layer 10 and the second fabric layer 20, the two ends of the pre-cut first spacer 301 and the second spacer 302 are respectively connected to the first fabric layer 10 and the second fabric layer 20, thereby separating multiple filling cavities 40 between the two.

[0070] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thermal insulation product, characterized in that: include: First fabric layer; The second fabric layer is disposed inside or outside the first fabric layer. A partition strip is spaced between the first fabric layer and the second fabric layer to separate multiple filling cavities between the first fabric layer and the second fabric layer. The partition strip includes a first spacer and a second spacer connected between the first fabric layer and the second fabric layer, and a cavity is formed between the first spacer and the second spacer. Thermal insulation filler is movably filled in the plurality of filling cavities; A support structure is movably disposed in the cavity, the support structure comprising support strips and / or foamed particles; the thermal insulation filler comprises one or a mixture of several of down, silk, wool, chemical fibers, and foamed particles.

2. The thermal insulation product according to claim 1, characterized in that: The partition strip and the first fabric layer and / or the second fabric layer are a one-piece fabric structure. The partition strip is formed by folding the one-piece fabric structure. The partition strip includes a folded edge and a first spacer and a second spacer that overlap along the folded edge. The folded edge is connected to the first fabric layer. The end of the first spacer away from the folded edge and the end of the second spacer away from the folded edge are connected to form a connecting end. The connecting end is integrally connected to the second fabric layer.

3. The thermal insulation product according to claim 2, characterized in that: The folded edge is bonded or sewn to the first fabric layer, and the end of the first spacer away from the folded edge and the end of the second spacer away from the folded edge are bonded or sewn together.

4. The thermal insulation product according to claim 3, characterized in that: The folded edge is sewn to the first fabric layer to form a first connecting seam, and the end of the first spacer away from the folded edge and the end of the second spacer away from the folded edge are sewn to form a second connecting seam. The first connecting seam and the second connecting seam respectively penetrate the first fabric layer and the second fabric layer.

5. The thermal insulation product according to claim 1, characterized in that: The first spacer and the second spacer are arranged parallel to each other between the first fabric layer and the second fabric layer, and the distance between the first spacer and the second spacer of the same partition strip is less than the distance between two adjacent partition strips.

6. The thermal insulation product according to claim 1, characterized in that: The support strip is made of fiber or foam material.

7. A method for preparing a thermal insulation product, characterized in that: Includes the following steps: S1. Select a first fabric layer and a second fabric layer, and connect several sets of partition strips between the first fabric layer and the second fabric layer. Each set of partition strips includes a first spacer and a second spacer. There is a gap between the first spacer and the second spacer to form a cavity, and a filling cavity is formed between two adjacent partition strips. S2. Fill the filling cavity with movable thermal insulation filler, and provide a movable support structure in the cavity, the support structure including support strips and / or foamed particles; S3. Seal the openings of the filling cavity and the empty cavity.

8. The method for preparing the thermal insulation product according to claim 7, characterized in that: Step S1 includes the following steps: S11. Select a whole piece of fabric, bend or fold it to form a first fabric layer and a second fabric layer located inside or outside the first fabric layer; or, select two pieces of fabric as the first fabric layer and the second fabric layer located inside or outside the first fabric layer, respectively. S12. Fold the second fabric layer at a predetermined position and with a predetermined width to form a partition strip. The partition strip includes a folded edge and a first spacer and a second spacer that overlap along the folded edge. S13. Connect the end of the first spacer away from the folded edge and the end of the second spacer away from the folded edge to form a connecting end, and the connecting end is integrally connected to the second fabric layer. S14. Connect the folded edge to the first fabric layer.

Images