Pearl wool with good heat preservation effect
By using a stacked structure and composite design of pearl cotton matrix, the problem of poor insulation effect of pearl cotton is solved, achieving higher insulation performance and connection strength, which is suitable for the insulation needs of building walls and cold chain transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN SHENGMAO PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-04-17
AI Technical Summary
The existing EPE foam insulation effect is insufficient and cannot meet the insulation requirements of building walls and cold chain transportation.
The structure employs a stacked structure of pearl cotton matrix one and pearl cotton matrix two, combined with sealing connectors, waterproof surface and thermal insulation structure, including the design of longitudinal grooves, transverse grooves, bushing, inner core, heat sealant, reflective layer and waterproof layer, to improve sealing and thermal insulation performance.
It significantly improves the thermal insulation effect of pearl cotton, enhances the connection strength and stability, prevents moisture from entering, and improves thermal insulation performance.
Smart Images

Figure CN224131830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pearl cotton technology, specifically to a pearl cotton with good heat insulation effect. Background Technology
[0002] Pearl cotton (EPE, polyethylene foam) is a material with good cushioning, moisture resistance and certain thermal insulation properties. Its thermal insulation effect mainly comes from its internal closed-cell bubble structure.
[0003] Currently, the insulation function of pearl cotton relies solely on its internal closed-cell bubble structure, which is far from meeting market demands, such as for building wall insulation and insulated boxes used in cold chain transportation. Therefore, there is an urgent need to design a pearl cotton product with superior insulation performance to address these issues. Utility Model Content
[0004] The purpose of this invention is to provide a type of pearl cotton with good heat insulation properties to overcome the above-mentioned shortcomings in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A type of polystyrene foam with good thermal insulation includes a first polystyrene foam substrate and a second polystyrene foam substrate, wherein the first and second polystyrene foam substrates are stacked, and a sealing connector is provided between the first and second polystyrene foam substrates. The sealing connector is used for sealing the connection between the first and second polystyrene foam substrates. A thermal insulation structure is provided on the underside of the second polystyrene foam substrate, and a waterproof surface is provided on the side of the thermal insulation structure away from the second polystyrene foam substrate.
[0007] Preferably, the first pearl cotton substrate and the second pearl cotton substrate have the same structure and are connected by snapping together in opposite directions.
[0008] Preferably, both the outer walls of the first and second pearl cotton substrates are provided with a plurality of longitudinal grooves and transverse grooves distributed around the periphery of the longitudinal grooves.
[0009] Preferably, the sealing connector includes a bushing disposed inside the longitudinal groove and the transverse groove, wherein the bushing is provided with a through groove and the through groove is provided with an inner core.
[0010] The interior of the transverse groove is provided with heat-sealing adhesive for a closed liner, and the outer surface of the heat-sealing adhesive is flush with the outer surfaces of the first and second pearl cotton substrates.
[0011] Preferably, the waterproof surface is composed of an outer hydrophobic layer, a middle waterproof layer, and an inner adhesive layer.
[0012] Preferably, the thermal insulation structure comprises an adhesive layer two connected to one side of the pearl cotton substrate two, a thermal insulation core layer located on one side of the adhesive layer two, and a reflective layer near the waterproof surface.
[0013] In the above technical solution, the beneficial effects of the pearl cotton with good heat insulation provided by this utility model are as follows:
[0014] (1) The double-layer stacked structure of pearl cotton matrix one and pearl cotton matrix two increases the density of the micro bubble structure inside the pearl cotton, thereby improving the heat insulation effect of the pearl cotton from its own structure. At the same time, the use of sealing connectors increases the connection strength between pearl cotton matrix one and pearl cotton matrix two, further improving the stability of the pearl cotton during use.
[0015] (2) The waterproof surface used can prevent moisture or water from the outside air from entering the interior of the pearl cotton, effectively improving the problem of poor heat preservation effect caused by water molecules, and further improving the heat preservation effect of the pearl cotton.
[0016] (3) Through the set insulation structure and the reflective layer, heat radiation can be reflected, which significantly improves the insulation effect. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0018] Figure 1 This is a structural schematic diagram of an embodiment of pearl cotton with good heat insulation effect according to the present invention.
[0019] Figure 2 This is a schematic diagram of the main cross-section of an embodiment of pearl cotton with good heat insulation effect according to the present invention.
[0020] Figure 3 This is an exploded structural diagram of an embodiment of pearl cotton with good heat insulation effect according to this utility model.
[0021] Figure 4 This is a schematic diagram of the structure of pearl cotton substrate one and pearl cotton substrate two provided in an embodiment of pearl cotton with good heat insulation effect according to this utility model.
[0022] Figure 5 This is a schematic diagram of the waterproof surface structure of a pearl cotton with good heat insulation effect according to an embodiment of this utility model.
[0023] Figure 6This is a schematic diagram of the insulation structure provided in an embodiment of pearl cotton with good insulation effect according to this utility model.
[0024] 1. Pearl cotton substrate one; 2. Pearl cotton substrate two; 21. Longitudinal groove; 22. Transverse groove; 3. Sealing connector; 31. Liner; 32. Through groove; 33. Inner core; 34. Heat sealant; 4. Waterproof surface; 41. Hydrophobic layer; 42. Waterproof layer; 43. Adhesive layer one; 5. Thermal insulation structure; 51. Reflective layer; 52. Thermal insulation core layer; 53. Adhesive layer two. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0026] like Figure 1-6 As shown in the figure, the present invention provides a type of pearl cotton with good thermal insulation effect, including a pearl cotton substrate 1 and a pearl cotton substrate 2. The pearl cotton substrate 1 and the pearl cotton substrate 2 are stacked. A sealing connector 3 is provided between the pearl cotton substrate 1 and the pearl cotton substrate 2. The sealing connector 3 is used at least for sealing the connection between the pearl cotton substrate 1 and the pearl cotton substrate 2. A thermal insulation structure 5 is provided on the lower side of the pearl cotton substrate 2. A waterproof surface 4 is provided on the side of the thermal insulation structure 5 away from the pearl cotton substrate 2.
[0027] In this embodiment, it includes a first pearl cotton matrix 1 and a second pearl cotton matrix 2. The first pearl cotton matrix 1 and the second pearl cotton matrix 2 are stacked. The stacked structure of the first pearl cotton matrix 1 and the second pearl cotton matrix 2 increases the thickness of the pearl cotton and improves the density of its internal closed-cell structure, with a density ≥15kg / m³. 3 This improves the heat insulation effect of pearl cotton;
[0028] Specifically, the structures of pearl cotton substrate 1 and pearl cotton substrate 2 are the same, and they are connected by interlocking in opposite directions. Several longitudinal grooves 21 and transverse grooves 22 are provided on the outer wall of the opposite side of pearl cotton substrate 1 and pearl cotton substrate 22. The sealing connector 3 is arranged inside the longitudinal grooves 21 and transverse grooves 22 to achieve a better connection between pearl cotton substrate 1 and pearl cotton substrate 2.
[0029] In this embodiment, a sealing connector 3 is provided between the first pearl cotton substrate 1 and the second pearl cotton substrate 2. The sealing connector 3 is used at least for sealing the connection between the first pearl cotton substrate 1 and the second pearl cotton substrate 2.
[0030] Specifically, the sealing connector 3 includes a bushing 31 disposed inside the longitudinal groove 21 and the transverse groove 22. The bushing 31 has a through groove 32 disposed inside, and the through groove 32 has an inner core 33 disposed inside. The bushing 31 is disposed inside the longitudinal groove 21 and the transverse groove 22, and the inner core 33 is disposed inside the bushing 31. The inner core 33 is a filament fiber structure, which further improves the connection strength and sealing performance between the pearl cotton matrix 1 and the pearl cotton matrix 2.
[0031] Specifically, the interior of the transverse groove 22 is provided with heat-sealing adhesive 34 of the closed bushing 31. The outer surface of the heat-sealing adhesive 34 is flush with the outer surfaces of the pearl cotton substrate 1 and the pearl cotton substrate 2. The heat-sealing adhesive 34 can seal the transverse groove 22 around the pearl cotton substrate 1 and the pearl cotton substrate 2, ensuring the integrity of the periphery of the pearl cotton substrate 1 and the pearl cotton substrate 2.
[0032] In this embodiment, a heat insulation structure 5 is provided on the lower side of the pearl cotton substrate 2;
[0033] Specifically, the insulation structure 5 comprises an adhesive layer 53 connected to one side of the pearl cotton substrate 2, an insulation core layer 52 located on one side of the adhesive layer 53, and a reflective layer 51 close to the waterproof surface 4. The adhesive layer 53 allows the insulation structure 5 to form an integral structure with the pearl cotton substrate 2. At the same time, the filling material of the insulation core layer 53 enhances the insulation effect of the pearl cotton. The filling material can be soft polyurethane foam. The reflective layer 51 can reflect heat radiation, significantly improving the insulation effect.
[0034] In this embodiment, a waterproof surface 4 is provided on the side of the thermal insulation structure 5 away from the pearl cotton substrate 2;
[0035] Specifically, the waterproof surface 4 is composed of an outer hydrophobic layer 41, a middle waterproof layer 42, and an inner adhesive layer 43. The adhesive layer 43 enables the waterproof surface 4 to be integrated with the insulation structure 5. The hydrophobic layer 41 guides water from the surface, preventing moisture from entering the interior of the insulation structure 5. The waterproof layer 42 is a moisture-proof coating structure that prevents moisture absorption and drainage, thus preventing the insulation performance of the pearl cotton from being reduced due to moisture.
[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A pearl wool with good heat preservation effect, characterized in that, It includes a first pearl cotton substrate (1) and a second pearl cotton substrate (2), the first pearl cotton substrate (1) and the second pearl cotton substrate (2) are stacked, a sealing connector (3) is provided between the first pearl cotton substrate (1) and the second pearl cotton substrate (2), the sealing connector (3) is used at least for sealing connection between the first pearl cotton substrate (1) and the second pearl cotton substrate (2); a heat insulation structure (5) is provided on the lower side of the second pearl cotton substrate (2), and a waterproof surface (4) is provided on the side of the heat insulation structure (5) away from the second pearl cotton substrate (2).
2. The pearl cotton with good heat insulation effect according to claim 1, characterized in that, The pearl cotton matrix one (1) and pearl cotton matrix two (2) have the same structure and are connected by snapping in opposite directions.
3. The pearl wool according to claim 1, characterized in that, The outer walls of the pearl cotton matrix one (1) and the pearl cotton matrix two (2) on opposite sides are provided with a number of longitudinal grooves (21) and transverse grooves (22) distributed around the longitudinal grooves (21).
4. The pearl wool according to claim 3, characterized in that, The sealing connector (3) includes a bushing (31) disposed inside the longitudinal groove (21) and the transverse groove (22). The bushing (31) has a through groove (32) inside, and the through groove (32) has an inner core (33) inside. The interior of the transverse groove (22) is provided with heat-sealing adhesive (34) for the closed bushing (31), and the outer surface of the heat-sealing adhesive (34) is flush with the outer surfaces of the first pearl cotton substrate (1) and the second pearl cotton substrate (2).
5. The pearl wool according to claim 1, characterized in that, The waterproof surface (4) is composed of an outer hydrophobic layer (41), a middle waterproof layer (42), and an inner adhesive layer (43).
6. The pearl wool according to claim 1, characterized in that, The thermal insulation structure (5) consists of an adhesive layer (53) connected to one side of the pearl cotton substrate (2), a thermal insulation core layer (52) located on one side of the adhesive layer (53), and a reflective layer (51) near the waterproof surface (4).