Fully-degradable environment-friendly composite non-woven fabric

Abstract

The utility model provides a fully-degradable environment-friendly composite non-woven fabric which comprises a non-woven fabric surface layer, the non-woven fabric middle layer is arranged on the bottom surface of the non-woven fabric surface layer; the non-woven fabric bottom layer is arranged on the bottom surface of the non-woven fabric middle layer; the periphery of the non-woven fabric surface layer is wrapped with a positioning wrapping edge, a hollowed-out buffering structure is arranged on the middle layer of the fully-degradable environment-friendly composite non-woven fabric, buffering supporting positioning is conducted on the non-woven fabric surface layer through cooperation of a buffering notch and a plurality of supporting silk columns, the anti-pressure capacity is effectively improved, and the non-woven fabric surface layer is prevented from being prone to deformation or damage when bearing pressure. And the positioning wrapping edge on the surface layer of the non-woven fabric is matched with the second hot melt adhesive tape in the buffer notch through the first hot melt adhesive tape in the positioning wrapping edge, so that the overall firmness is ensured in the hot press molding process of the non-woven fabric.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric technology, and in particular to a fully degradable and environmentally friendly composite nonwoven fabric. Background Technology

[0002] Fully degradable and environmentally friendly composite nonwoven fabric is an innovative product designed to solve the problems of durability and non-degradability of traditional nonwoven materials in the environment. It combines a variety of natural or synthetic biodegradable materials and is manufactured through specific processing technologies, exhibiting excellent environmental friendliness and biodegradability.

[0003] Existing fully degradable environmentally friendly composite nonwoven fabrics typically use natural fibers or bio-based polymers as raw materials. These materials often have lower mechanical strength and compressive strength than traditional synthetic fibers (such as polyester and nylon), which means they are more prone to deformation or damage when subjected to pressure. Utility Model Content

[0004] The purpose of this invention is to provide a fully degradable and environmentally friendly composite nonwoven fabric to solve the above-mentioned problems.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a fully degradable and environmentally friendly composite nonwoven fabric, including a nonwoven fabric surface layer;

[0007] A non-woven fabric intermediate layer is disposed on the bottom surface of the non-woven fabric surface layer;

[0008] The non-woven fabric bottom layer is disposed on the bottom surface of the middle layer of the non-woven fabric.

[0009] The nonwoven fabric surface is wrapped with positioning edging around its perimeter. The bottom of the positioning edging extends to cover the connection between the nonwoven fabric surface and the nonwoven fabric middle layer. A first hot melt adhesive strip is provided inside the positioning edging interlayer.

[0010] The nonwoven fabric middle layer is provided with a buffer groove, and a number of support filaments are spaced apart on the bottom surface of the buffer groove. A second hot melt adhesive strip is simultaneously bonded to each row of support filaments. The end of the second hot melt adhesive strip extends horizontally out of the outside of the nonwoven fabric middle layer and connects with the first hot melt adhesive strip.

[0011] In the above technical solution, a hollowed-out buffer structure is set on the middle layer of the fully degradable environmentally friendly composite nonwoven fabric. The buffer groove, together with several supporting filaments, provides buffer support and positioning for the surface layer of the nonwoven fabric, effectively improving the compressive strength and preventing easy deformation or damage when subjected to pressure. Furthermore, the positioning edge of the nonwoven fabric surface layer is secured by the first hot melt adhesive strip inside it, which cooperates with the second hot melt adhesive strip inside the buffer groove, ensuring the overall firmness during the hot pressing process of the nonwoven fabric.

[0012] In one embodiment, the nonwoven fabric surface layer, the nonwoven fabric middle layer, and the nonwoven fabric bottom layer are connected by heat pressing, which improves the strength of the connection.

[0013] In one embodiment, the supporting filament is specifically an arc-shaped or wavy polyester filament, and this technical solution uses the arc-shaped or wavy polyester filament for buffer positioning.

[0014] In one embodiment, the top surface of the second hot melt adhesive strip is bonded to the bottom surface of the nonwoven fabric, which improves the stability of the connection.

[0015] In one embodiment, the nonwoven bottom layer is a nonwoven bottom layer made of breathable mesh fabric, which improves the breathability.

[0016] In one embodiment, the bottom surface of the buffer slot is further provided with a groove that connects with the support thread, and this technical solution uses the groove for positioning and connection.

[0017] In one embodiment, the positioning edge is cut with a serrated texture, which provides anti-slip properties and facilitates picking up.

[0018] The advantages or beneficial effects of the above technical solutions include at least the following:

[0019] This utility model discloses a fully degradable and environmentally friendly composite nonwoven fabric. A hollowed-out buffer structure is set on the middle layer of the fully degradable and environmentally friendly composite nonwoven fabric. Through the buffer groove and several supporting filaments, the surface layer of the nonwoven fabric is buffered, supported and positioned, which effectively improves the compressive strength and prevents it from being easily deformed or damaged under pressure. Furthermore, the positioning edge of the nonwoven fabric surface layer is combined with the first hot melt adhesive strip inside and the second hot melt adhesive strip in the buffer groove, which ensures the overall firmness during the hot pressing process of the nonwoven fabric. Attached Figure Description

[0020] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0021] Figure 1 This is a schematic diagram of the structure of a fully degradable and environmentally friendly composite nonwoven fabric according to the present invention;

[0022] Figure 2 This is a partial cross-sectional structural diagram of a fully degradable environmentally friendly composite nonwoven fabric according to the present invention.

[0023] Figure 3 A schematic diagram of the structure supporting the wire column;

[0024] Figure 4 This is a partial top view of the nonwoven fabric intermediate layer. Detailed Implementation

[0025] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0026] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0028] It should be noted that the terms "a" and "several" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0029] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0030] Reference Figures 1-4 A fully degradable and environmentally friendly composite nonwoven fabric, comprising a nonwoven fabric surface layer 1;

[0031] The nonwoven intermediate layer 2 is disposed on the bottom surface of the nonwoven surface layer 1;

[0032] The non-woven fabric bottom layer 3 is disposed on the bottom surface of the non-woven fabric middle layer 2;

[0033] The nonwoven fabric surface layer 1 is wrapped with positioning edge 11 around its perimeter. The bottom of the positioning edge 11 extends to cover the connection between the nonwoven fabric surface layer 1 and the nonwoven fabric middle layer 2. A first hot melt adhesive strip 12 is provided in the interlayer of the positioning edge 11.

[0034] The nonwoven intermediate layer 2 is provided with a buffer groove 21. The bottom surface of the buffer groove 21 is provided with a number of support filaments 22 at intervals. A second hot melt adhesive strip 23 is simultaneously bonded to each row of support filaments 22. The end of the second hot melt adhesive strip 23 extends horizontally out of the outside of the nonwoven intermediate layer 2 and connects with the first hot melt adhesive strip 12.

[0035] In the above technical solution, a hollow buffer structure is set on the middle layer of the fully degradable environmentally friendly composite nonwoven fabric. The buffer groove 21, together with several support filaments 22, provides buffer support and positioning for the surface layer 1 of the nonwoven fabric, effectively improving the compressive strength and preventing easy deformation or damage when subjected to pressure. Furthermore, the positioning edge 11 of the surface layer 1 of the nonwoven fabric cooperates with the second hot melt adhesive strip 23 in the buffer groove 21 through the first hot melt adhesive strip 12 inside it, ensuring the overall firmness during the hot pressing process of the nonwoven fabric.

[0036] In one embodiment, the nonwoven fabric surface layer 1, the nonwoven fabric middle layer 2, and the nonwoven fabric bottom layer 3 are connected by heat pressing, which improves the strength of the connection.

[0037] In one embodiment, the support thread 22 is specifically an arc-shaped or wavy polyester thread, and this technical solution uses the arc-shaped or wavy polyester thread for buffer positioning.

[0038] In one embodiment, the top surface of the second hot melt adhesive strip 23 is bonded to the bottom surface of the nonwoven fabric surface layer 1, which improves the stability of the connection.

[0039] In one embodiment, the nonwoven bottom layer 3 is a nonwoven bottom layer 3 made of breathable mesh fabric, which improves the breathability.

[0040] In one embodiment, the bottom surface of the buffer slot 21 is also provided with a groove that connects with the support thread 22. This technical solution uses the groove for positioning and connection.

[0041] In one embodiment, the positioning edge 11 is cut with a serrated texture, which provides anti-slip and easy-to-pick-up effect.

[0042] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0043] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A fully degradable and environmentally friendly composite nonwoven fabric, characterized in that: The non-woven fabric surface layer (1) is surrounded by a positioning edge (11) at the periphery, and the bottom of the positioning edge (11) extends to cover the joint between the non-woven fabric surface layer (1) and the non-woven fabric middle layer (2). The non-woven fabric middle layer (2) is provided with a buffer notch (21), and a plurality of support silk columns (22) are arranged at the bottom of the buffer notch (21). The non-woven fabric bottom layer (3) is a non-woven fabric bottom layer (3) made of a breathable mesh cloth. The bottom of the positioning edge (11) extends to cover the joint between the non-woven fabric surface layer (1) and the non-woven fabric middle layer (2). The non-woven fabric middle layer (2) is provided with a buffer notch (21), and a plurality of support silk columns (22) are arranged at the bottom of the buffer notch (21).

2. The fully degradable environment-friendly composite non-woven fabric according to claim 1, characterized in that: The non-woven fabric bottom layer (3) is a non-woven fabric bottom layer (3) made of a breathable mesh cloth.

3. The fully degradable environment-friendly composite non-woven fabric according to claim 1, characterized in that: The bottom of the positioning edge (11) extends to cover the joint between the non-woven fabric surface layer (1) and the non-woven fabric middle layer (2).

4. The fully degradable environment-friendly composite non-woven fabric according to claim 1, characterized in that: The non-woven fabric middle layer (2) is provided with a buffer notch (21), and a plurality of support silk columns (22) are arranged at the bottom of the buffer notch (21).

5. The fully degradable environment-friendly composite non-woven fabric according to claim 1, characterized in that: The non-woven fabric bottom layer (3) is a non-woven fabric bottom layer (3) made of a breathable mesh cloth.

6. The fully degradable environment-friendly composite non-woven fabric according to claim 1, characterized in that: The bottom of the positioning edge (11) extends to cover the joint between the non-woven fabric surface layer (1) and the non-woven fabric middle layer (2).

7. The fully degradable environment-friendly composite non-woven fabric according to claim 1, characterized in that: The non-woven fabric middle layer (2) is provided with a buffer notch (21), and a plurality of support silk columns (22) are arranged at the bottom of the buffer notch (21). The non-woven fabric bottom layer (3) is a non-woven fabric bottom layer (3) made of a breathable mesh cloth. The bottom of the positioning edge (11) extends to cover the joint between the non-woven fabric surface layer (1) and the non-woven fabric middle layer (2). The non-woven fabric middle layer (2) is provided with a buffer notch (21), and a plurality of support silk columns (22) are arranged at the bottom of the buffer notch (21). The non-woven fabric bottom layer (3) is a non-woven fabric bottom layer (3) made of a breathable mesh cloth. The bottom of the positioning edge (11) extends to cover the joint between the non-woven fabric surface layer (1) and the non-woven fabric middle layer (2). The non-woven fabric middle layer (2) is provided with a buffer notch (21), and a plurality of support silk columns (22) are arranged at the bottom of the buffer notch (21). The non-woven fabric bottom layer (3) is a non-woven fabric bottom layer (3) made of a breathable mesh cloth. The bottom of the positioning edge (11) extends to cover the joint between the non-woven fabric surface layer (1) and the non-woven fabric middle layer (2). The non-woven fabric middle layer (2) is provided with a buffer notch (21), and a plurality of support silk columns (22) are arranged at the bottom of the buffer notch (21). The non-woven fabric bottom layer (3) is a non-woven fabric bottom layer (3) made of a breathable mesh cloth. The bottom of the positioning edge (11) extends to cover the joint between the non-woven fabric surface layer (1) and the non-woven fabric middle layer (2). The non-woven fabric middle layer (2) is provided with a buffer notch (21), and a plurality of support silk columns (22) are arranged at the bottom of the buffer notch (21). The non-woven fabric bottom layer (3) is a non-woven fabric bottom layer (3) made of a breathable mesh cloth. The bottom of the positioning edge (11) extends to cover the joint between the non-woven fabric surface layer (1) and the non-woven fabric middle layer (2). The

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