Environment-friendly degradable indoor sand release

Abstract

The utility model discloses an indoor sand release of environmental protection degradable relates to the field of textile products. The indoor sand release of environmental protection degradable includes the fabric base body of the layer -stacked composite from above down, the fabric base body includes wear -resistant decorative layer, buffer degradation layer and antiskid closed layer, wherein, the degradation rate of buffer degradation layer under the compost condition is greater than the degradation rate of wear -resistant decorative layer and antiskid closed layer. The indoor sand release of environmental protection degradable through adopting wear -resistant decorative layer, buffer degradation layer and antiskid closed layer from top to bottom layer -stacked and constitute the fabric base body to ensure that the degradation rate of buffer degradation layer under the compost condition is higher than the rest two layers, thereby realized the quick and controllable degradation of sand release in the compost environment after abandonment, effectively solved the environmental pollution problem of traditional sand release difficult degradation.

Description

Technical Field

[0001] This utility model relates to the field of textile product technology, specifically to an environmentally friendly and biodegradable indoor sofa fabric. Background Technology

[0002] Traditional indoor sofa fabrics are mostly made of synthetic polymer materials such as polyvinyl chloride (PVC), polyurethane (PU) or their composites. These materials are widely used because of their excellent wear resistance, water resistance and processing performance.

[0003] However, traditional indoor sofa fabrics are extremely difficult to degrade in the natural environment after being discarded, causing serious pollution problems in landfills. Some materials also release toxic and harmful gases when incinerated. Although some bio-based or biodegradable materials have been applied in the textile field, such as pure polylactic acid (PLA) fabrics, they often have limited functionality, insufficient cushioning comfort, or demanding degradation conditions and slow overall degradation rates. It is difficult to achieve rapid and thorough environmental degradation in indoor sofa applications that combine decoration, comfort, and anti-slip functions. In view of the shortcomings of existing technologies, this utility model provides an environmentally friendly and biodegradable indoor sofa fabric to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an environmentally friendly and biodegradable indoor sofa fabric. The fabric base is constructed by layering a wear-resistant decorative layer, a buffer degradation layer, and an anti-slip sealing layer from top to bottom. The buffer degradation layer is ensured to degrade at a higher rate than the other two layers under composting conditions. This enables the sofa fabric to degrade rapidly and controllably in a composting environment after disposal, effectively solving the environmental pollution problem of traditional sofa fabrics being difficult to degrade.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly and biodegradable indoor sofa fabric, comprising a fabric matrix layered and laminated from top to bottom, wherein the fabric matrix includes: A wear-resistant decorative layer serves as the surface layer that comes into contact with the user; A buffer degradation layer is laminated onto the lower surface of the wear-resistant decorative layer; An anti-slip sealing layer is laminated to the lower surface of the buffer degradation layer, serving as the bottom layer in contact with the sofa body; The degradation rate of the buffer degradation layer under composting conditions is greater than that of the wear-resistant decorative layer and the anti-slip sealing layer.

[0006] Preferably, the wear-resistant decorative layer is a polylactic acid (PLA) fiber woven fabric that has undergone wear-resistant treatment.

[0007] Preferably, the buffer degradation layer has a porous structure, and the material of the buffer degradation layer is polyhydroxybutyrate valerate (PHBV) foam.

[0008] Preferably, the anti-slip sealing layer comprises: The underlying substrate is a dense polylactic acid (PLA) film; A water-soluble film is laminated to the upper surface of the underlying substrate and is in contact with the lower surface of the buffer degradation layer.

[0009] Preferably, the water-soluble film is a polyvinyl alcohol (PVA) film.

[0010] Preferably, the wear-resistant decorative layer, the buffer degradation layer, and the anti-slip sealing layer are bonded and fixed together by a biodegradable bio-based hot melt adhesive.

[0011] Preferably, the wear-resistant decorative layer, the buffer degradation layer, and the anti-slip sealing layer are stitched together and fixed with biodegradable sutures.

[0012] Preferably, the edge of the fabric substrate is further provided with a fixing structure for securing it to the sofa.

[0013] Preferably, the fixing structure is a button assembly made of biodegradable plastic.

[0014] Preferably, the fixing structure is a strap made of natural fibers.

[0015] The technical effects and advantages of this utility model are as follows: This environmentally friendly and biodegradable indoor sofa fabric uses a base layer consisting of a wear-resistant decorative layer, a cushioning degradation layer, and an anti-slip sealing layer, stacked sequentially from top to bottom. The cushioning degradation layer degrades at a higher rate than the other two layers under composting conditions, enabling rapid and controlled degradation of the fabric in a composting environment after disposal. This effectively solves the environmental pollution problem caused by the difficulty in degrading traditional sofa fabrics. The wear-resistant decorative layer ensures the surface aesthetics and durability during product use. The cushioning degradation layer not only provides necessary comfort but also accelerates the overall structural disintegration through its faster degradation rate. The anti-slip sealing layer, while fulfilling its anti-slip function, maintains the integrity of the underlying layer for a certain period through its relatively slow degradation characteristics. Ultimately, all components are completely biodegradable in a composting environment with no harmful residues. The overall structural design is scientifically sound and successfully balances product performance with environmental protection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the bio-based hot melt adhesive used in this utility model; Figure 2 This is a schematic diagram of the overall structure of the present invention using sutures; Figure 3 This is a schematic diagram of the structure of the present invention using straps; Figure 4 This is a schematic diagram of the structure of the button assembly used in this utility model.

[0018] In the diagram: 1. Fabric substrate; 2. Wear-resistant decorative layer; 3. Cushioning and degradation layer; 4. Anti-slip sealing layer; 41. Underlying main body; 42. Water-soluble film; 5. Fixing structure; 6. Bio-based hot melt adhesive; 7. Seam thread. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This embodiment discloses an environmentally friendly and biodegradable indoor sofa fabric, according to the attached... Figure 1 To be continued Figure 4 As shown, the fabric includes a fabric substrate 1 composed of layers stacked sequentially from top to bottom. The fabric substrate 1 includes a wear-resistant decorative layer 2, a cushioning and degradable layer 3, and an anti-slip sealing layer 4. The wear-resistant decorative layer 2 serves as the surface layer in contact with the user. The cushioning and degradable layer 3 is laminated onto the lower surface of the wear-resistant decorative layer 2, and the anti-slip sealing layer 4 is laminated onto the lower surface of the cushioning and degradable layer 3, serving as the bottom layer in contact with the sofa body. The cushioning and degradable layer 3 degrades at a higher rate under composting conditions than the wear-resistant decorative layer 2 and the anti-slip sealing layer 4. This allows the sofa fabric to preferentially degrade the cushioning layer in a composting environment after its service life, thereby accelerating overall decomposition and reducing environmental pollution.

[0021] According to the appendix Figure 1 and attached Figure 2 As shown, the wear-resistant decorative layer 2 is a woven fabric of polylactic acid (PLA) fibers that have undergone wear-resistant treatment. This material has excellent wear resistance and decorative properties, and PLA fibers are derived from renewable plant resources and are biodegradable under composting conditions. Furthermore, the wear-resistant treatment enhances its wear resistance and extends its service life through surface coating or interlacing processes.

[0022] According to the appendix Figure 1 and attached Figure 2As shown, the buffer degradation layer 3 has a porous structure and is made of polyhydroxybutyrate valerate (PHBV) foam. PHBV is a bio-based polymer with high biodegradability. The porous structure not only provides cushioning comfort but also increases the surface area, accelerating microbial invasion and degradation. Under composting conditions, the PHBV foam can rapidly decompose into water and carbon dioxide, while the porous design facilitates the permeation of water and oxygen, promoting the degradation process.

[0023] According to the appendix Figure 1 and attached Figure 2 As shown, the anti-slip sealing layer 4 includes a bottom substrate 41 and a water-soluble film 42. The bottom substrate 41 is a dense polylactic acid (PLA) film, providing anti-slip and sealing functions to prevent moisture from penetrating into the sofa body. The water-soluble film 42 is laminated to the upper surface of the bottom substrate 41 and is in contact with the lower surface of the buffer degradation layer 3. The water-soluble film 42 is a polyvinyl alcohol (PVA) film, which dissolves in water in a composting environment, thereby exposing the buffer degradation layer 3 and accelerating its degradation. At the same time, the PVA film itself is also biodegradable and will not produce harmful residues.

[0024] According to the appendix Figure 1 As shown, the wear-resistant decorative layer 2, the buffer degradation layer 3, and the anti-slip sealing layer 4 are bonded and fixed together by a biodegradable bio-based hot melt adhesive 6. The bio-based hot melt adhesive 6 is made from natural raw materials such as starch or protein, and can be completely degraded under composting conditions, ensuring a strong bond between the layers and being environmentally friendly.

[0025] According to the appendix Figure 2 As shown, the wear-resistant decorative layer 2, the buffer degradable layer 3, and the anti-slip sealing layer 4 are stitched together and fixed by biodegradable sutures 7. The biodegradable sutures 7 are made of polylactic acid (PLA) or natural fibers such as cotton and linen, providing mechanical fixation without affecting the overall biodegradability.

[0026] According to the appendix Figure 3 and attached Figure 4 As shown, the edge of the fabric substrate 1 is also provided with a fixing structure 5 for fixing it to the sofa.

[0027] As attached Figure 4 As shown, the fixing structure 5 can be a button assembly made of biodegradable plastic; As attached Figure 3 As shown, the fixing structure 5 can be made of natural fiber straps.

[0028] The button components are injection molded from biodegradable plastics such as PLA or PHBV, and the straps are woven from cotton, linen, or bamboo fiber, all ensuring the overall environmental friendliness and biodegradability of the sofa fabric.

[0029] Specifically disclosed, according to the appendix Figure 1 To be continued Figure 4As shown, the materials selected for each layer of the sofa fabric are based on their matching degradation rates. The PHBV foam material in the buffer degradation layer 3 degrades the fastest, while the PLA material in the wear-resistant decorative layer 2 and the anti-slip sealing layer 4 degrades more slowly. This design allows the sofa fabric to degrade in layers after being discarded, avoiding the structural collapse caused by the overall decomposition, and facilitating composting.

[0030] It needs to be emphasized that, according to the appendix Figure 1 and attached Figure 2 As shown, the water-soluble film 42 plays a key role in the anti-slip sealing layer 4: during use, it remains intact, providing anti-slip and sealing functions; during composting, it dissolves rapidly, breaking the sealing of the anti-slip sealing layer 4, allowing microorganisms to enter the buffer degradation layer 3, accelerating the overall degradation of the indoor sofa fabric.

[0031] It needs to be emphasized that, according to the appendix Figure 3 and attached Figure 4 As shown, the fixing structure 5 not only provides convenient installation but also ensures the overall environmental friendliness of the sofa fabric through biodegradable materials. The straps or button components can degrade along with the main body in a composting environment, leaving no residue.

[0032] Example 1: This example uses a sofa fabric bonded with bio-based hot melt adhesive 6 as an example, combined with... Figure 1 Detailed explanation of the workflow: The workflow is as follows: First, the wear-resistant decorative layer 2, made of PLA fiber woven fabric, is laid flat, and a bio-based hot melt adhesive 6 is coated on its lower surface. Then, a cushioning and degradation layer 3, made of PHBV foam, is laminated onto the wear-resistant decorative layer 2, and the layers are bonded together by hot pressing. Next, bio-based hot melt adhesive 6 is coated on the lower surface of the cushioning and degradation layer 3, and an anti-slip sealing layer 4 is laminated, comprising PLA film and PVA film. Finally, the layers are firmly bonded by hot pressing, and a fixing structure 5 is sewn at the edges. The fixing structure 5 can be a strap or a button. During use, the sofa fabric is installed on the sofa through the fixing structure 5, providing comfort, anti-slip, and wear-resistant functions. When discarded, placed in a composting environment, the water-soluble film 42 dissolves first, the cushioning and degradation layer 3 degrades rapidly, and then the other layers decompose gradually.

[0033] Example 2: This example uses sofa fabric fixed with suture 7 as an example, combined with the attached... Figure 2 Detailed explanation of the workflow: The workflow is as follows: First, the wear-resistant decorative layer 2, the buffer degradation layer 3, and the anti-slip sealing layer 4 are layered and aligned in sequence. Then, biodegradable stitching 7 is used to sew along the edges and inside to form the overall fabric base 1. Next, a fixing structure 5 is installed at the edge. During use, the stitching provides mechanical strength, ensuring that the layers do not separate. When discarded, placed in a composting environment, the stitching 7 gradually degrades, and each layer decomposes under the action of microorganisms, with the buffer degradation layer 3 degrading preferentially, accelerating the overall breakdown.

[0034] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An environmentally friendly and biodegradable indoor sofa fabric, characterized in that: Includes a fabric substrate (1) composed of layers stacked sequentially from top to bottom, wherein the fabric substrate (1) includes: A wear-resistant decorative layer (2) serves as the surface layer that comes into contact with the user; A buffer degradation layer (3) is laminated to the lower surface of the wear-resistant decorative layer (2); An anti-slip sealing layer (4) is laminated to the lower surface of the buffer degradation layer (3) as the bottom layer in contact with the sofa body; The degradation rate of the buffer degradation layer (3) under composting conditions is greater than that of the wear-resistant decorative layer (2) and the anti-slip sealing layer (4).

2. The environmentally friendly and biodegradable indoor sofa fabric according to claim 1, characterized in that, The wear-resistant decorative layer (2) is a polylactic acid (PLA) fiber woven fabric that has undergone wear-resistant treatment.

3. The environmentally friendly and biodegradable indoor sofa fabric according to claim 1, characterized in that, The buffer degradation layer (3) has a porous structure and is made of polyhydroxybutyrate valerate (PHBV) foam material.

4. The environmentally friendly and biodegradable indoor sofa fabric according to claim 1, characterized in that, The anti-slip sealing layer (4) includes: The underlying substrate (41) is a dense polylactic acid (PLA) film; A water-soluble film (42) is laminated on the upper surface of the underlying substrate (41) and is in contact with the lower surface of the buffer degradation layer (3).

5. The environmentally friendly and biodegradable indoor sofa fabric according to claim 4, characterized in that, The water-soluble film (42) is a polyvinyl alcohol (PVA) film.

6. The environmentally friendly and biodegradable indoor sofa fabric according to claim 1, characterized in that, The wear-resistant decorative layer (2), the buffer degradation layer (3) and the anti-slip sealing layer (4) are bonded and fixed together by a biodegradable bio-based hot melt adhesive (6).

7. The environmentally friendly and biodegradable indoor sofa fabric according to claim 1, characterized in that, The wear-resistant decorative layer (2), the buffer degradation layer (3) and the anti-slip sealing layer (4) are stitched together with biodegradable sutures (7).

8. The environmentally friendly and biodegradable indoor sofa fabric according to claim 1, characterized in that, The fabric substrate (1) is also provided with a fixing structure (5) at its edge for fixing it to the sofa.

9. The environmentally friendly and biodegradable indoor sofa fabric according to claim 8, characterized in that, The fixing structure (5) is a button assembly made of biodegradable plastic.

10. The environmentally friendly and biodegradable indoor sofa fabric according to claim 8, characterized in that, The fixing structure (5) is made of natural fiber straps.

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