Multi-layer composite pearl wool
By incorporating conductive fiber layers and metal foil layers within the EPE foam body, a dual electrostatic conduction channel is constructed, solving the problem of static electricity accumulation during EPE foam use, achieving rapid static electricity discharge, and reducing the risk of damage to packaged items.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HONGTU PACKAGING PROD CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-19
AI Technical Summary
Pearl cotton is prone to generating static electricity during use, which can lead to static electricity accumulation and damage to sensitive products such as electronic devices, posing a safety hazard.
A multi-layer composite pearl cotton structure is designed, comprising a pearl cotton body, a conductive fiber layer, and a metal foil layer. A dual electrostatic conduction channel is constructed through a grounded metal component to ensure that static electricity can be quickly discharged.
This effectively prevents the accumulation of static electricity on the surface of the pearl cotton, reduces the risk of damage to the packaged items, and ensures the quality and performance of the products.
Smart Images

Figure CN224256234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pearl cotton technology, specifically a multi-layer composite pearl cotton. Background Technology
[0002] EPE foam, a new type of environmentally friendly cushioning packaging material, occupies an important position in the packaging industry. It is composed of countless independent air bubbles created through the physical foaming of low-density polyethylene resin, possessing numerous excellent properties such as lightweight, flexibility, elasticity, heat insulation, sound insulation, moisture resistance, and shock resistance. Thanks to these characteristics, EPE foam is widely used in the packaging of various products, including electronics, instruments, medical devices, handicrafts, and glass ceramics. It effectively cushions products from impacts such as collisions and compression during transportation and handling, providing reliable protection, reducing product damage rates, and ensuring that products arrive at their destination intact.
[0003] However, in practical applications, EPE foam has also revealed some unresolved issues. Due to its material properties, EPE foam is highly susceptible to static electricity when rubbing against the inner walls of packaging boxes, product surfaces, and other objects. In today's technologically advanced era, many products, especially electronic devices and precision instruments, are extremely sensitive to static electricity. Static electricity accumulation on these product surfaces can lead to a series of serious consequences. At best, it can cause a decline in the performance of electronic components and affect the measurement accuracy of medical devices; at worst, it can cause permanent damage to electronic components, trigger major safety accidents such as fires or explosions, resulting in huge economic losses and safety hazards for businesses and consumers. Utility Model Content
[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a multi-layer composite pearl cotton, which can effectively solve the technical problem that the static electricity generated by pearl cotton cannot be discharged, thus easily causing damage to items.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A multi-layer composite pearl cotton is composed of a pearl cotton body and multiple grounding metal parts, wherein the grounding metal parts are disposed on the outside of the pearl cotton body.
[0007] The pearl cotton body is composed of an upper base layer and a lower base layer. A conductive fiber layer is provided between the upper base layer and the lower base layer. A plurality of first connecting grooves are provided circumferentially on the side of the upper base layer near the conductive fiber layer.
[0008] The bottom of the lower base layer is sequentially laminated with a metal foil layer and a protective layer, and the side of the lower base layer closest to the metal foil layer is provided with several second connecting grooves in the circumferential direction.
[0009] The grounding metal component is provided with a grounding end for grounding and an adhesive end that is attached to the outside of the pearl cotton body. The adhesive end is provided with a first conductive part and a second conductive part. The first conductive part is electrically connected to the conductive fiber layer through a first connecting groove, and the second conductive part is electrically connected to the metal foil layer through a second connecting groove.
[0010] Furthermore, the outer side of the pearl cotton body is provided with a limiting groove for positioning and installing the grounding metal part, and the number and position of the limiting groove correspond to the grounding metal part.
[0011] Furthermore, the bonding end is also provided with two positioning ends, which are respectively inserted into the outer side of the upper base layer and the lower base layer.
[0012] Furthermore, the grounding end is perpendicular to the mating end, and a grounding connection hole is provided on the grounding end.
[0013] Furthermore, the outer side of the pearl cotton body is detachably wrapped with an elastic rubber ring.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] The multi-layer composite pearl cotton provided by this utility model constructs a dual electrostatic conduction channel by setting a conductive fiber layer between the upper and lower layers of the pearl cotton body and a composite metal foil layer at the bottom of the lower layer. When the pearl cotton generates static electricity due to friction or other factors during use, the conductive fiber layer and the metal foil layer can quickly and effectively collect and conduct the static electricity. This dual-layer conductive structure greatly improves the efficiency of static electricity collection and conduction, ensuring that static electricity can be quickly and fully discharged, effectively avoiding the accumulation of static electricity on the surface of the pearl cotton, thereby greatly reducing the risk of static electricity damaging packaged items and ensuring the quality and performance of the product. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the connection structure between the pearl cotton body and the grounded metal part in an embodiment of this utility model;
[0018] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged schematic diagram of section A in the middle;
[0019] Figure 4 This is an exploded structural diagram of the pearl cotton body and the grounded metal part according to an embodiment of this utility model;
[0020] Figure 5 This is an embodiment of the present utility model. Figure 4Enlarged schematic diagram of section B;
[0021] Figure 6 This is a schematic diagram of the grounding metal component structure according to an embodiment of the present utility model;
[0022] Numbering on the map:
[0023] 1-EPE foam body, 2-Grounding metal part, 3-Elastic rubber ring;
[0024] 101-Upper base layer, 102-Lower base layer, 103-Conductive fiber layer, 104-First connecting groove, 105-Metal foil layer, 106-Protective layer, 107-Second connecting groove, 108-Limiting groove;
[0025] 201-Grounding end, 202-Adhesive end, 203-First conductive part, 204-Second conductive part, 205-Positioning end, 206-Grounding connection hole. Detailed Implementation
[0026] 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.
[0027] like Figure 1-6 As shown, this utility model provides a multi-layer composite pearl cotton, which is mainly composed of pearl cotton body 1 and multiple grounded metal parts 2. By setting conductive fiber layer 103, metal foil layer 105 and grounded metal parts 2 inside the pearl cotton body 1, the static electricity generated on the pearl cotton body can be discharged in time, effectively avoiding the impact of static electricity on the items inside the packaging.
[0028] The pearl cotton body 1 is composed of an upper base layer 101 and a lower base layer 102. A conductive fiber layer 103 is disposed between the upper base layer 101 and the lower base layer 102. A plurality of first connecting grooves 104 are disposed circumferentially on the side of the upper base layer 101 near the conductive fiber layer 103. A metal foil layer 105 and a protective layer 106 are sequentially laminated to the bottom of the lower base layer 102. A plurality of second connecting grooves 107 are disposed circumferentially on the side of the lower base layer 102 near the metal foil layer 105.
[0029] The grounding metal component 2 is provided with a grounding end 201 for grounding and an adhesive end 202 that is attached to the outside of the pearl cotton body 1. The adhesive end 202 is provided with a first conductive part 203 and a second conductive part 204. The first conductive part 203 is electrically connected to the conductive fiber layer 103 through a first connecting groove 104, and the second conductive part 204 is electrically connected to the metal foil layer 105 through a second connecting groove 107.
[0030] To facilitate the positioning and installation of the grounding metal component 2, a limiting groove 108 for positioning and installing the grounding metal component 2 is provided on the outer side of the pearl cotton body 1. The number and position of the limiting grooves 108 correspond to the grounding metal component 2. When installing the grounding metal component 2, simply align the mating end 202 of the grounding metal component 2 with the limiting groove 108 and insert it. This ensures the accuracy of the installation position of the grounding metal component 2 and improves installation efficiency.
[0031] The bonding end 202 is also provided with two positioning ends 205, which are respectively inserted into the outer side of the upper base layer 101 and the lower base layer 102. The positioning ends 205 can further enhance the connection stability between the grounding metal part 2 and the pearl cotton body 1, prevent the grounding metal part 2 from loosening or falling off during use, and ensure the reliability of static electricity discharge.
[0032] The grounding end 201 is perpendicular to the bonding end 202, and a grounding connection hole 206 is provided on the grounding end 201. The grounding connection hole 206 can be connected to a grounding wire, etc., to conduct static electricity to the ground and achieve effective elimination of static electricity. The perpendicular arrangement of the grounding end 201 and the bonding end 202 facilitates the connection and installation of the grounding wire, making the entire multi-layer composite pearl cotton structure more compact and reasonable.
[0033] To enhance the cushioning and protective properties of the multi-layer composite pearl cotton, an elastic rubber ring 3 is detachably wrapped around the outside of the pearl cotton body 1. The elastic rubber ring 3 possesses a certain degree of elasticity and flexibility, providing cushioning when the pearl cotton body 1 is subjected to external impact, further protecting the items inside the packaging. Simultaneously, the detachable design of the elastic rubber ring 3 facilitates the replacement and maintenance of the multi-layer composite pearl cotton; when the elastic rubber ring 3 is damaged, it can be replaced promptly, reducing usage costs.
[0034] When static electricity is generated during use of the multi-layer composite pearl cotton, it is conducted through the conductive fiber layer 103 and the metal foil layer 105. The conductive fiber layer 103 has good conductivity, enabling it to conduct the static electricity generated by the upper base layer 101 to the first connecting groove 104 in a timely manner, and then conduct it to the grounding metal component 2 through the first conductive part 203. The metal foil layer 105 conducts the static electricity generated by the lower base layer 102 to the second connecting groove 107, and then conducts it to the grounding metal component 2 through the second conductive part 204. The grounding terminal 201 of the grounding metal component 2 is connected to the grounding wire through the grounding connection hole 206, conducting the static electricity to the ground, thereby effectively eliminating static electricity.
[0035] The multi-layer composite pearl cotton provided by this technical solution constructs a dual electrostatic conduction channel by setting a conductive fiber layer 103 between the upper base layer 101 and the lower base layer 102 of the pearl cotton body 1, and setting a composite metal foil layer 105 at the bottom of the lower base layer 102. When the pearl cotton generates static electricity due to friction or other factors during use, the conductive fiber layer 103 can quickly collect and conduct the static electricity on the surface of the upper base layer 101, while the metal foil layer 105 effectively collects and conducts the static electricity on the surface of the lower base layer 102. This dual-layer conductive structure greatly improves the efficiency of static electricity collection and conduction, ensuring that static electricity can be quickly and fully discharged, effectively avoiding the accumulation of static electricity on the surface of the pearl cotton, thereby greatly reducing the risk of static electricity damaging sensitive items inside the packaging, and ensuring the quality and performance of the product.
[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A multi-layer composite pearl cotton, comprising a pearl cotton body and multiple grounding metal components, wherein the grounding metal components are disposed on the outer side of the pearl cotton body, characterized in that: The pearl cotton body is composed of an upper base layer and a lower base layer. A conductive fiber layer is provided between the upper base layer and the lower base layer. A plurality of first connecting grooves are provided circumferentially on the side of the upper base layer near the conductive fiber layer. The bottom of the lower base layer is sequentially laminated with a metal foil layer and a protective layer, and the side of the lower base layer near the metal foil layer is provided with several second connecting grooves in the circumferential direction; The grounding metal component is provided with a grounding end for grounding and an adhesive end that is attached to the outside of the pearl cotton body. The adhesive end is provided with a first conductive part and a second conductive part. The first conductive part is electrically connected to the conductive fiber layer through a first connecting groove, and the second conductive part is electrically connected to the metal foil layer through a second connecting groove.
2. The multi-layer composite pearl cotton according to claim 1, characterized in that: The outer side of the pearl cotton body is provided with a limiting groove for positioning and installing the grounding metal part, and the number and position of the limiting groove correspond to the grounding metal part.
3. The multi-layer composite pearl cotton according to claim 1, characterized in that: The bonding end is also provided with two positioning ends, which are respectively inserted into the outer side of the upper base layer and the lower base layer.
4. The multi-layer composite pearl cotton according to claim 1, characterized in that: The grounding end is perpendicular to the bonding end, and a grounding connection hole is provided on the grounding end.
5. A multi-layer composite pearl cotton according to any one of claims 1-4, characterized in that: The outer side of the pearl cotton body is detachably wrapped with an elastic rubber ring.