Waterproof structure of furniture fabric

Abstract

The waterproof structure of the furniture fabric comprises a fabric body, the front face of the fabric body faces the outside, and the back face of the fabric body is used for covering a furniture soft bag. The fabric body comprises a first waterproof fabric and a second waterproof fabric, the first waterproof fabric and the second waterproof fabric are provided with a first connecting part and a second connecting part respectively, and the first connecting part and the second connecting part are fixed in a sewing mode and form a seam; the waterproof sealing strip capable of blocking the seam opening is adhered to the reverse side of the first waterproof fabric and the reverse side of the second waterproof fabric, so that furniture mildewing or corrosion caused by the fact that chemical liquid or water permeates into furniture through the fabric seam is prevented, the service life of the furniture is prolonged, and the use experience feeling of the furniture is improved.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to a waterproof structure for furniture fabric. Background Technology

[0002] Waterproof furniture fabrics are widely used in daily life. For example, some chair seat covers or back covers are made of multiple pieces of waterproof fabric sewn together. However, the waterproof effect at the seams of the seat covers or back covers is insufficient.

[0003] Ideally, two pieces of waterproof fabric, once sewn together, will fit tightly against each other to prevent leakage at the seam. However, in reality, such as... Figure 6-7 As shown, after two pieces of waterproof fabric are sewn together, multiple stitches will be formed on the seat cover or back cover. The stitches can ensure that the two pieces of waterproof fabric will not separate from each other. However, waterproof fabric is a flexible material, and during sewing, it is inevitable that tiny bends or wrinkles will be generated under the action of the stitches. This will cause tiny water seepage channels to form at the seam between the two pieces of waterproof fabric, and water can easily flow into the seat through the channels or needle holes.

[0004] Moisture seeping through the channels can have various adverse effects on seats. For example, in home seats, moisture seeping down between the two fabric pieces can cause mold growth and affect the user experience. In medical chairs used in hospitals or laboratories, if liquid chemicals accidentally seep between the two waterproof fabric pieces during experiments due to improper handling, it will not only affect the user experience but also corrode the chair and reduce its lifespan. Summary of the Invention

[0005] This utility model provides a waterproof structure for furniture fabric. By adhesively bonding a waterproof sealing strip to the reverse sides of the first and second waterproof fabrics, the seam opening can be sealed, preventing chemical liquids or moisture from seeping into the furniture through the fabric seams and causing mold or corrosion, thus improving the lifespan of the furniture and the user experience.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A waterproof structure for furniture fabric includes a fabric body with its front side facing outwards and its reverse side used to cover furniture upholstery. The fabric body includes a first waterproof fabric and a second waterproof fabric, each having a first connecting portion and a second connecting portion. The first and second connecting portions are fixed together by sewing to form a seam. A waterproof sealing strip is provided on the reverse side of the fabric body. The waterproof sealing strip is fixed to the seam position by adhesive and completely seals the seam opening on the reverse side of the fabric body.

[0008] Preferably, a water-blocking structure is formed after the first connecting part and the second connecting part are sewn together. The water-blocking structure can prevent water entering the seam from flowing to the reverse side of the fabric body.

[0009] Preferably, the end of the first connecting part facing the second connecting part has a waterproof edge band with a U-shaped cross-section. The waterproof edge band covers the end of the second connecting part facing the first connecting part and is fixed to the first and second connecting parts by sewing, thereby forming the water-blocking structure. This water-blocking structure prevents water from entering the seam from being trapped in the U-shaped gap formed by the waterproof edge band and the second connecting part, making it difficult for water to directly penetrate into the reverse side of the fabric body.

[0010] Preferably, the first connecting part is folded inward to form a first hem strip, and a first binding strip with a U-shaped cross-section is formed between the first hem strip and the first connecting part. The second connecting part is folded inward to form a second hem strip, and a second binding strip with a U-shaped cross-section is formed between the second hem strip and the second connecting part. The first binding strip covers the second hem strip, and the second binding strip covers the first hem strip. The first binding strip and the second binding strip are fixed to the first connecting part and the second connecting part by sewing, and constitute the water-blocking structure. This water-blocking structure prevents water from entering the seam from being trapped in the S-shaped gap formed by the first binding strip and the second binding strip, making it difficult for water to directly penetrate into the reverse side of the fabric body.

[0011] Preferably, the first connecting part is folded inward to form a first thickening strip, the first thickening strip is attached to the front of the second connecting part and fixed to the first and second connecting parts by sewing; the folded first thickening strip can enhance the sewing strength of the first waterproof fabric and prevent the first connecting part and the second connecting part from coming apart after sewing.

[0012] Preferably, both the first and second waterproof fabrics have a waterproof layer made of waterproof material, and a base fabric layer is fixedly connected to the reverse side of the waterproof layer. After the first and second connecting parts are fixed by sewing, the waterproof sealing tape is simultaneously fixed to the base fabric layers of the first and second waterproof fabrics by adhesive. The base fabric layer can improve the structural strength of the waterproof layer, making the fabric structure after sewing more reliable and stable.

[0013] As a preferred option, the waterproof sealing tape is bonded and fixed to the fabric body using TPU hot melt adhesive; TPU hot melt adhesive has stable performance, strong adhesion, and a wider temperature adaptability range.

[0014] Preferably, the first connecting part overlaps the second connecting part to form a joint surface, and the waterproof sealing tape has an adhesive surface facing the fabric body; along the width direction of the joint surface, the joint surface does not extend beyond the adhesive surface; further improving the sealing and waterproof performance of the seam.

[0015] Preferably, the width of the waterproof sealing tape is in the range of 10mm-30mm.

[0016] Preferably, the waterproof sealing tape includes a polyester mesh layer, on which a PU waterproof layer is fixedly connected. The PU waterproof layer is fixed to the reverse side of the fabric body by adhesive. The PU waterproof layer can prevent horizontal seepage through the seam, while the polyester mesh layer can enhance the strength of the PU waterproof layer.

[0017] Preferably, the furniture upholstery is a seat cushion or backrest cushion for seating. Seating is typically a chair or lounge chair, but in the medical field, it relates to medical chairs, which have seat cushions or backrest cushions made primarily of sponge or cotton, with a waterproof fabric covering the seat cushion or backrest cushion.

[0018] The beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0019] This invention completely seals the seam opening on the reverse side of the fabric by gluing a waterproof sealing strip to the seam corresponding to the seam of the first and second waterproof fabrics. This prevents moisture from the front of the fabric from seeping into the seat or back cushions of the furniture through the seam, thus avoiding mold or corrosion and improving the lifespan and user experience of the furniture.

[0020] The water-blocking structure formed between the first and second waterproof fabrics creates a tortuous seam track between the first and second connecting parts, making it difficult for water that seeps into the seam to directly pass through the seam and reach the reverse side of the furniture body, thus further improving the waterproof performance of the fabric body. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure for sewing and fixing the first waterproof fabric and two second waterproof fabrics together;

[0022] Figure 2 A diagram illustrating how waterproof sealing tape seals the seam opening on the reverse side of the fabric.

[0023] Figure 3 This is a sectional view of the water-retaining structure;

[0024] Figure 4 This is a cross-sectional view of the water-blocking structure in Example 2;

[0025] Figure 5 This is a cross-sectional view of the first thickened strip in Example 3;

[0026] Figure 6 This is a planar schematic diagram of water flowing into the seam of a fabric in the background art;

[0027] Figure 7 This is a cross-sectional view of water flowing into the seam of a fabric in the background art.

[0028] The reference numerals in the attached drawings are as follows: 1-first waterproof fabric, 1a-first connecting part, 2-second waterproof fabric, 2a-second connecting part, 3-waterproof sealing tape, 4-sewing thread, 5-seale, 11-waterproof binding strip, 12-first folded edge strip, 13-jointing surface, 14-first thickened strip. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0031] This utility model has multiple embodiments, and the specific implementation methods are as follows:

[0032] Example 1: As Figure 1-3 As shown, this embodiment provides a waterproof structure for furniture fabric, including a fabric body with its front side facing outwards and its reverse side used to cover the seat or back cushions on the furniture. The seat or back cushions are soft pads made of flexible material. The fabric body includes a first waterproof fabric 1 and a second waterproof fabric 2, with a first connecting portion 1a and a second connecting portion 2a respectively on the first waterproof fabric 1 and the second waterproof fabric 2. The first connecting portion 1a and the second connecting portion 2a are fixed by sewing and form a seam 5. In this embodiment, the fabric body is used as a seat cover for explanation. The seat cover includes one piece of first waterproof fabric 1 and two pieces of second waterproof fabric 12, which are sewn and fixed to opposite ends of the first waterproof fabric 11. A waterproof sealing strip 3 is provided on the reverse side of the fabric body. The waterproof sealing strip 3 is fixed to the seam 5 by adhesive and completely seals the opening of the seam 5 on the reverse side of the fabric body, preventing moisture from the front side of the fabric body from seeping into the seat or back cushions on the furniture through the seam, thus avoiding mold or corrosion and improving the lifespan and user experience of the furniture.

[0033] Furthermore, to further enhance the waterproof performance of the fabric's waterproof structure, a water-blocking structure is formed after the first connecting part 1a and the second connecting part 2a are sewn together. This water-blocking structure can prevent water entering the seam 5 from flowing to the reverse side of the fabric body. Specifically, the end of the first connecting part 1a facing the second connecting part 2a has a U-shaped waterproof binding strip 11. The waterproof binding strip 11 covers the end of the second connecting part 2a facing the first connecting part 1a and is fixed to the first connecting part 1a and the second connecting part 2a by sewing, thereby forming the aforementioned water-blocking structure. This water-blocking structure prevents water from entering the seam 5 and being blocked in the U-shaped gap formed by the waterproof binding strip 11 and the second connecting part 2a. Compared to ordinary seams, the extension trajectory of the U-shaped seam is more tortuous, making it difficult for water to directly penetrate into the reverse side of the fabric body 1. Even if some water seeps out of the seam opening on the reverse side of the fabric body, it will be blocked by the waterproof sealing strip 3, making it difficult to affect the seat cushion or back cushion on the reverse side of the fabric body.

[0034] Furthermore, to enhance the structural strength of the fabric body and extend its service life, both the first waterproof fabric 1 and the second waterproof fabric 2 have a waterproof layer made of waterproof material, typically made of waterproof leather. A base fabric layer is fixedly connected to the reverse side of the waterproof layer, with the connection method including but not limited to thermoforming and adhesive bonding. After the first connecting part 1a and the second connecting part 2a are fixed by sewing, the waterproof sealing strip 3 is simultaneously fixed to the base fabric layers of both the first waterproof fabric 1 and the second waterproof fabric 2 by adhesive bonding. The base fabric layer enhances the structural strength of the waterproof layer, making the sewn fabric body 1 more robust and stable. Additionally, the surface of the base fabric layer is rougher, resulting in a more secure bond when adhesively fixed to the waterproof sealing strip 3.

[0035] Furthermore, to ensure a more stable adhesive effect between the waterproof sealing tape 3 and the fabric body, the waterproof sealing tape 3 and the fabric body are bonded and fixed with TPU hot melt adhesive; TPU hot melt adhesive is thermoplastic polyurethane elastomer hot melt adhesive, which has strong adhesion, stable performance, good resistance to grease, solvents, oxidants and a variety of chemicals, and a wide temperature adaptability range, and can be used in a wide range of temperatures, maintaining its performance from low temperature to high temperature.

[0036] Furthermore, when the first waterproof fabric 1 and the second waterproof fabric 2 are sewn together, the first connecting part 1a overlaps the second connecting part 2a to form a joint surface 13. The joint surface 13 has multiple side stitch lines 4, and the waterproof sealing strip 3 has an adhesive surface facing the fabric body. In order to improve the sealing and waterproof performance at the seam 5, in this embodiment, along the width direction of the joint surface 13, the joint surface 13 does not extend beyond the adhesive surface, so that the entire waterproof sealing strip 3 completely seals the needle holes formed by the multiple stitch lines 4 on the reverse side of the fabric body, preventing water from passing through the needle holes to the reverse side of the fabric body, and further improving the waterproof performance of the fabric body.

[0037] Furthermore, the waterproof sealing tape 3, which is glued to the reverse side of the fabric body, should be within a reasonable width range. If the width of the waterproof sealing tape 3 is too narrow, it will be difficult to form a good sealing effect on the opening of the seam 5. If the width of the waterproof sealing tape 3 is too wide, too much waterproof sealing tape will be wasted, increasing production costs. Therefore, in order to make the waterproof sealing tape 3 both economical and have good sealing performance, the width range of the waterproof sealing tape 3 in this embodiment is 10mm-30mm.

[0038] Furthermore, to ensure the structural strength and sealing performance of the waterproof sealing tape 3, the waterproof sealing tape 3 in this embodiment includes a polyester mesh layer, on which a PU waterproof layer is fixedly connected. The PU waterproof layer is a polyurethane waterproof layer, and the PU waterproof layer is fixed to the reverse side of the fabric body by adhesive. The PU waterproof layer can block the water seeping out of the seam 5, while the polyester mesh layer can improve the strength of the PU waterproof layer. During use, the waterproof sealing tape 3 can be prevented from being damaged by external forces or separated from the fabric body.

[0039] Example 2: This example differs from the examples above in that, as follows... Figure 4 As shown, this embodiment differs from the above embodiment in that the water-blocking structure is different. Specifically, the first connecting part 1a is folded inward to form a first folded edge strip 12, and a first edge strip with a U-shaped cross-section is formed between the first folded edge strip 12 and the first connecting part 1a. The second connecting part 2a is folded inward to form a second folded edge strip 21, and a second edge strip with a U-shaped cross-section is formed between the second folded edge strip 21 and the second connecting part 2a. The first edge strip covers the second folded edge strip 21, and the second edge strip covers the first folded edge strip 12. The first and second binding strips are sewn together to the first connecting part 1a and the second connecting part 2a, forming the water-blocking structure. This water-blocking structure prevents water from entering the seam 5 and being blocked in the S-shaped gap formed by the first and second binding strips. Compared with ordinary seams, the extension trajectory of the S-shaped seam is more tortuous, making it difficult for water to directly penetrate into the reverse side of the fabric body 1. Even if some water seeps out of the seam opening on the reverse side of the fabric body, it will be blocked by the waterproof sealing strip 3, making it difficult to affect the seat or back pad on the reverse side of the fabric body.

[0040] Example 3: This example differs from the examples above in that, as follows... Figure 5As shown, the difference between this embodiment and the above embodiment is that, in order to ensure a better sewing and fixing effect between the first connecting part 1a and the second connecting part 2a, the first connecting part 1a is folded inward to form a first thickening strip 14. The first thickening strip 14 is attached to the front of the second connecting part 2a and fixed to the first connecting part 1a and the second connecting part 2a by sewing. The folded first thickening strip 14 can enhance the sewing strength of the first waterproof fabric 1 and prevent the first connecting part 1a and the second connecting part 2a from coming apart after sewing.

[0041] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A waterproof structure for furniture fabric, characterized in that, The fabric body includes a fabric body with the front side facing outwards and the back side of the fabric body used to cover furniture upholstery. The fabric body includes a first waterproof fabric (1) and a second waterproof fabric (2). The first waterproof fabric (1) and the second waterproof fabric (2) have a first connecting part (1a) and a second connecting part (2a) respectively. The first connecting part (1a) and the second connecting part (2a) are fixed by sewing and form a seam (5). The back side of the fabric body is provided with a waterproof sealing strip (3). The waterproof sealing strip (3) is fixed to the seam (5) by adhesive and completely seals the opening of the seam (5) on the back side of the fabric body.

2. The waterproof structure of furniture fabric according to claim 1, characterized in that: After the first connecting part (1a) and the second connecting part (2a) are sewn together, a water-blocking structure is formed. The water-blocking structure can prevent water entering the seam (5) from flowing to the reverse side of the fabric body.

3. The waterproof structure of a furniture fabric according to claim 2, characterized in that: The first connecting part (1a) has a U-shaped waterproof edging strip (11) at one end facing the second connecting part (2a). The waterproof edging strip (11) covers the end of the second connecting part (2a) facing the first connecting part (1a) and is fixed to the first connecting part (1a) and the second connecting part (2a) by sewing, thereby forming the water-blocking structure.

4. The waterproof structure of a furniture fabric according to claim 2, characterized in that: The first connecting part (1a) is folded inward to form a first folded edge strip (12). A first edge strip with a U-shaped cross-section is formed between the first folded edge strip (12) and the first connecting part (1a). The second connecting part (2a) is folded inward to form a second folded edge strip (21). A second edge strip with a U-shaped cross-section is formed between the second folded edge strip (21) and the second connecting part (2a). The first edge strip covers the second folded edge strip (21), and the second edge strip covers the first folded edge strip (12). The first edge strip and the second edge strip are fixed to the first connecting part (1a) and the second connecting part (2a) by sewing, and constitute the water-blocking structure.

5. The waterproof structure of a furniture fabric according to claim 1, characterized in that: The first connecting part (1a) is folded inward to form a first thickening strip (14), the first thickening strip (14) is attached to the front of the second connecting part (2a), and is fixed to the first connecting part (1a) and the second connecting part (2a) by sewing.

6. The waterproof structure of a furniture fabric according to claim 1, characterized in that: Both the first waterproof fabric (1) and the second waterproof fabric (2) have a waterproof layer made of waterproof material. The back of the waterproof layer is fixedly connected to a base fabric layer. After the first connecting part (1a) and the second connecting part (2a) are fixed by sewing, the waterproof sealing tape (3) is simultaneously fixed to the base fabric layer of the first waterproof fabric (1) and the base fabric layer of the second waterproof fabric (2) by adhesive.

7. The waterproof structure of a furniture fabric according to claim 1, characterized in that: The waterproof sealing tape (3) is bonded and fixed to the fabric body by TPU hot melt adhesive.

8. The waterproof structure of a furniture fabric according to claim 1, characterized in that: The first connecting part (1a) overlaps the second connecting part (2a) and forms a joint surface (13). The waterproof sealing tape (3) has an adhesive surface facing the fabric body. Along the width direction of the joint surface (13), the joint surface (13) does not extend beyond the adhesive surface.

9. The waterproof structure of a furniture fabric according to claim 1, characterized in that: The width of the waterproof sealing tape (3) ranges from 10mm to 30mm.

10. The waterproof structure of a furniture fabric according to claim 1, characterized in that: The waterproof sealing tape (3) includes a polyester mesh layer, on which a PU waterproof layer is fixedly connected. The PU waterproof layer is fixed to the reverse side of the fabric body by adhesive.

11. The waterproof structure of a furniture fabric according to claim 1, characterized in that: The aforementioned furniture upholstery refers to seat cushions or back cushions for seating.

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