Lofted thermal spray adhesive cotton
By using a composite structure for the main body of the spray-bonded cotton, the problems of insufficient weight and insulation effect of traditional insulation materials are solved, resulting in a lightweight spray-bonded cotton with good insulation effect, which is suitable for greenhouse covering.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG FULIBANG NON WOVEN TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional insulation covering materials are heavy, labor-intensive, and have limited insulation effects, making them difficult to keep warm efficiently in greenhouses.
The main body is made of spray-bonded cotton, including an anti-mildew layer, a fluffy and warm insulation layer and a wear-resistant layer, which are bonded together by spray bonding. The anti-mildew layer is an anti-mildew fiber layer, the fluffy and warm insulation layer is made of fluffy fiber and warm insulation fiber layer bonded together by needle punching, and the wear-resistant layer is polyester needle punched nonwoven fabric with a thickness of 1-3cm.
The spray-bonded cotton is lightweight and has good warmth retention. It is easy to roll and unroll, the anti-mildew layer prevents mold growth, and the wear-resistant layer reduces mechanical wear and extends service life.
Smart Images
Figure CN224490337U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a spray-bonded cotton, specifically a fluffy and warm spray-bonded cotton. Background Technology
[0002] In northern regions, where winters are cold, vegetable cultivation is typically carried out in greenhouses. Maintaining the temperature inside the greenhouse at night requires careful attention, usually achieved by covering the front transparent slope of the greenhouse with an insulation layer. Currently, traditional insulation materials used by farmers include straw mats and recycled cotton insulation blankets. While these materials offer some insulation, they often rely on increasing the weight and thickness of the wadding to reduce convection and thermal conductivity, thus improving insulation. However, this increased weight and thickness also presents various drawbacks, such as heavy weight and the labor-intensive process of rolling and unrolling. Therefore, this application provides a fluffy, heat-insulating spray-bonded cotton. Utility Model Content
[0003] The purpose of this invention is to provide a fluffy, heat-insulating spray-bonded cotton that is lighter and has better heat insulation performance compared to traditional insulation materials such as straw mats and recycled cotton quilts.
[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: A fluffy and warm spray-bonded cotton, comprising: a spray-bonded cotton body, wherein the spray-bonded cotton body includes an anti-mildew layer, a fluffy and warm layer, and an abrasion-resistant layer sequentially laminated together, wherein the anti-mildew layer, the fluffy and warm layer, and the abrasion-resistant layer are laminated together by spraying adhesive; the anti-mildew layer is an anti-mildew fiber layer; the fluffy and warm layer includes a fluffy fiber layer, wherein warm fiber layers are provided on both sides of the fluffy fiber layer, wherein the fluffy fiber layer and the warm fiber layer are laminated together by needle punching; the abrasion-resistant layer is a polyester needle-punched nonwoven fabric; the thickness of the spray-bonded cotton body is 1-3 cm.
[0005] Based on the above scheme and as a preferred embodiment of the above scheme: the anti-mildew fiber in the anti-mildew fiber layer is antibacterial and anti-mildew polypropylene fiber.
[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the fluffy fiber in the fluffy fiber layer is a three-dimensional crimped polyester hollow fiber.
[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the thermal insulation fiber in the thermal insulation fiber layer is graphene-modified hollow polyester staple fiber.
[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the insulating fiber layer is a nonwoven fabric made of waste wool fibers.
[0009] The beneficial effects of this utility model are as follows: Based on the fluffy and warm spray-bonded cotton of this utility model, the main body of the spray-bonded cotton utilizes a fluffy and warm insulation layer, which greatly reduces its own weight, making it easier to roll up and unroll when used as an insulation blanket. The anti-mildew layer helps to prevent the growth of mold on the surface of the spray-bonded cotton during use, and the wear-resistant layer helps to reduce mechanical friction and wear from the external environment when the main body of the spray-bonded cotton is used as an insulation blanket, thus extending its service life. Compared with traditional insulation materials such as straw mats and recycled cotton insulation blankets, it is lighter and has a better insulation effect. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of the fluffy, heat-insulating spray-bonded cotton involved in this utility model;
[0011] In the diagram: 1-Anti-mildew layer, 2-Fluffy and warm insulation layer, 3-Wear-resistant layer, 4-Fluffy fiber layer, 5-Warm insulation fiber layer. Detailed Implementation
[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0013] Example 1
[0014] Combination Figure 1 This embodiment provides a detailed description of a fluffy, warm, spray-bonded cotton, comprising: a spray-bonded cotton body, which includes a mildew-resistant layer 1, a fluffy, warm-insulating layer 2, and a wear-resistant layer 3 sequentially laminated together, wherein the mildew-resistant layer 1, the fluffy, warm-insulating layer 2, and the wear-resistant layer 3 are laminated together by spray bonding; the mildew-resistant layer 1 is a mildew-resistant fiber layer; the fluffy, warm-insulating layer 2 includes a fluffy fiber layer 4, and warm-insulating fiber layers 5 are disposed on both sides of the fluffy fiber layer 4, wherein the fluffy fiber layer 4 and the warm-insulating fiber layer 5 are laminated together by needle punching; the wear-resistant layer 3 is a polyester needle-punched nonwoven fabric; the thickness of the spray-bonded cotton body is 1-3 cm. Specifically, in this embodiment, the thickness of the spray-bonded cotton body is 2 cm.
[0015] Polyester itself has high strength, good abrasion resistance, and strong weather resistance, making it suitable for long-term outdoor use. Polyester needle-punched nonwoven fabric uses mechanical needle punching to make the fibers entangle with each other, forming a tight and three-dimensional network structure. The cohesion between the fibers is strong, and the tear resistance and abrasion resistance are excellent. As the abrasion layer 3 of spray-bonded cotton, when applied to thermal insulation quilts, it can effectively resist the friction during the use of the quilt, such as the mechanical friction when rolling up and putting down.
[0016] Furthermore, the anti-mold fiber in the anti-mold fiber layer is antibacterial and anti-mold polypropylene fiber. The antibacterial and anti-mold polypropylene fiber filament is prepared using thiabendazole and nano-zinc oxide as antibacterial and anti-mold agents, through a velvety twin-screw blending extrusion and single-screw spinning process. Thiabendazole is a highly efficient, broad-spectrum, and universal bactericide with low toxicity and high heat resistance. Nano-zinc oxide has high thermal stability, good antibacterial and antifungal properties, deodorizing and anti-mold effects, and is inexpensive. The antibacterial and anti-mold polypropylene fiber filament achieves a mold resistance rating of 0, exhibiting excellent mold resistance performance, with an inhibition rate of 54.4% against Escherichia coli and 79.6% against Staphylococcus aureus.
[0017] Furthermore, the fluffy fiber layer 4 contains three-dimensional crimped polyester hollow fibers. Three-dimensional crimped polyester hollow fibers are a differentiated fiber; their hollow structure determines their excellent warmth retention and lightweight characteristics. The cavities they possess can store still air, thus improving the fiber's warmth retention, and also increase the surface area per unit volume, thereby improving the fiber's fluffiness. When the weight per square meter or thickness is the same, the fluffy fiber layer 4 has a smaller unit volume mass, a higher content of still air inside, and a higher thermal resistance of still air, which helps to improve the warmth retention of the spray-bonded cotton body.
[0018] Furthermore, the insulating fiber in the insulating fiber layer 5 is graphene-modified hollow polyester staple fiber. The graphene-modified hollow polyester staple fiber is produced on a large-capacity direct-spinning hollow polyester staple fiber production line by adding graphene masterbatch to polyethylene terephthalate melt through an online addition device for melt blending and modification. The graphene-modified hollow polyester staple fiber has a fineness of 5.50 dtex, a crimp count of 6.5 within a 25mm length, a crimp rate of 16.7%, a bulkiness of 154 cm³ / g under light load, a bulkiness of 28 cm³ / g under heavy load, an antibacterial rate of 99.5%, and a thermal insulation rate of 94%.
[0019] Example 2
[0020] The difference from Example 1 is that the insulating fiber layer 5 is a waste wool fiber nonwoven fabric. Compared with the original wool fiber, the waste wool fiber is coarser and its surface scales are damaged. Its fiber diameter is 57.12 μm, which is 145% of the original wool diameter. The length of the waste wool fiber is about 65 mm, which is 79% of the original wool length. The breaking strength of the waste wool fiber is 1.19 cN / dtex, which is 73% of the breaking strength of the original wool. The thermal conductivity of the waste wool fiber nonwoven fabric is 0.03287 W / (m·K), which is lower than the thermal conductivity of the original wool fiber needle-punched nonwoven fabric (0.03516 W / (m·K). This is because the waste wool nonwoven fabric contains more stagnant air, so its thermal conductivity is lower. Stagnant air has a high thermal resistance, which helps to improve the warmth of the spray-bonded cotton body.
[0021] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A fluffy, heat-insulating spray-bonded cotton, characterized in that, include: The main body of the spray-bonded cotton includes a mildew-proof layer (1), a fluffy and warm insulation layer (2), and a wear-resistant layer (3) that are sequentially laminated together. The mildew-proof layer (1), the fluffy and warm insulation layer (2), and the wear-resistant layer (3) are laminated together by spraying adhesive. The mildew-proof layer (1) is a mildew-proof fiber layer. The fluffy and warm insulation layer (2) includes a fluffy fiber layer (4). Warm insulation fiber layers (5) are provided on both sides of the fluffy fiber layer (4). The fluffy fiber layer (4) and the warm insulation fiber layer (5) are laminated together by needle punching. The wear-resistant layer (3) is a polyester needle-punched nonwoven fabric. The thickness of the main body of the spray-bonded cotton is 1-3 cm.
2. The fluffy, warm, spray-bonded cotton according to claim 1, characterized in that, The anti-mold fiber in the anti-mold fiber layer is antibacterial and anti-mold polypropylene fiber.
3. The fluffy, warm, spray-bonded cotton according to claim 1, characterized in that, The fluffy fiber layer (4) contains three-dimensional crimped polyester hollow fibers.
4. The fluffy, warm, spray-bonded cotton according to claim 1, characterized in that, The insulating fiber in the insulating fiber layer (5) is graphene-modified hollow polyester short fiber.
5. The fluffy, warm, spray-bonded cotton according to claim 1, characterized in that, The insulating fiber layer (5) is a nonwoven fabric made of waste wool fibers.