Anti-static dust-free paper

Abstract

The utility model provides anti-static dust-free paper which comprises an upper dust-free paper layer, a lower dust-free paper layer and a fiber layer arranged between the upper dust-free paper layer and the lower dust-free paper layer, an antibacterial layer and an anti-static layer are sequentially compounded on the upper surface and the lower surface of the fiber layer from inside to outside, and degradable non-woven fabric layers are arranged on the lower surface of the lower dust-free paper layer at intervals. The dust-free paper comprises an upper dust-free paper layer and a lower dust-free paper layer, the upper dust-free paper layer is provided with a fiber layer, the fiber layer comprises first fibers and second fibers, the first fibers and the second fibers are woven to form a fiber reinforcing net, and grids of the fiber reinforcing net are filled with a water-absorbing particle layer, so that a good wiping foundation is provided for the dust-free paper through the upper dust-free paper layer and the lower dust-free paper layer; the fiber layer and the fiber reinforcing net are alternately woven through the first fiber and the second fiber to form the fiber reinforcing net, the strength and toughness of the dust-free paper are enhanced, and the anti-static layer can effectively prevent static electricity of the upper dust-free paper layer and the lower dust-free paper layer from being generated.

Description

Technical Field

[0001] This utility model relates to the field of cleanroom paper technology, and in particular to an antistatic cleanroom paper. Background Technology

[0002] Cleanroom paper needs to have antistatic properties mainly because static electricity can cause a series of problems during the production, storage, and use of cleanroom paper. Static electricity can not only attract dust and tiny particles, reducing the cleanliness of the cleanroom paper, but also damage sensitive electronic components. Therefore, cleanroom paper is made to have antistatic properties by adding antistatic agents or using special processes, which can effectively reduce the generation and accumulation of static electricity and protect product quality and production safety.

[0003] Based on the above, in the prior art, patent application number CN202122862023.1 discloses a composite antistatic cleanroom paper, including a packaging box and a cleanroom paper body. The cleanroom paper body includes a wood fiber layer, and absorbent layers are provided on both outer walls of the wood fiber layer. Antibacterial layers are provided on both outer walls of the absorbent layer, and sponge layers are adhered to both outer walls of the antibacterial layer. A cleanroom paper layer is compositely formed on both outer walls of the sponge layer, and an antistatic spectral film layer is sprayed on both outer walls of the cleanroom paper layer. Through the antistatic spectral film layer, the cleanroom paper can play an antistatic role during use, thereby making the surface of the cleanroom paper softer and improving the quality of the cleanroom paper.

[0004] Although the aforementioned composite antistatic cleanroom paper achieves multiple functions such as antistatic properties, water absorption, and antibacterial properties through its multi-layer structure design and the introduction of an antistatic spectral film layer, it has some shortcomings in practical applications. First, while the antistatic spectral film layer coated on the surface of the cleanroom paper layer can effectively prevent the generation of static electricity, it may also affect the wiping performance of the cleanroom paper to some extent. Second, since both the upper and lower surfaces of the cleanroom paper body are coated with antistatic spectral film layers with the same wiping performance, the wiping effect of the cleanroom paper may not be optimal when facing different types of stains. Utility Model Content

[0005] To address the technical deficiencies in the background art, this utility model proposes an antistatic dust-free paper. To further solve the aforementioned technical problems and meet practical needs, the specific technical solution is as follows:

[0006] An antistatic cleanroom paper includes an upper cleanroom paper layer, a lower cleanroom paper layer, and a fiber layer disposed between the upper and lower cleanroom paper layers. An antibacterial layer and an antistatic layer are sequentially laminated on the upper and lower surfaces of the fiber layer from the inside out. A biodegradable nonwoven fabric layer is spaced apart on the lower surface of the lower cleanroom paper layer. The antistatic layer is coated on the lower surface of the upper cleanroom paper layer and the upper surface of the lower cleanroom paper layer. The antibacterial layer is coated on the upper and lower surfaces of the fiber layer. The fiber layer includes a first fiber and a second fiber, which are woven to form a fiber-reinforced mesh. The mesh of the fiber-reinforced mesh is filled with a layer of absorbent particles.

[0007] As a further technical solution of this utility model, the first fiber and the second fiber are alternately arranged in the warp and weft directions of the fiber reinforcement mesh, respectively.

[0008] As a further technical solution of this utility model, the first fiber is PLA fiber with a diameter range of 400-500μm, and the second fiber is PBAT fiber with a diameter range of 400-500μm.

[0009] As a further technical solution of this utility model, a first water guiding channel is provided on the upper surface of the upper dust-free paper layer. One end of the first water guiding channel is placed in the water-absorbing particle layer filled in the mesh of the fiber-reinforced mesh, and the other end of the first water guiding channel is placed on the upper surface of the upper dust-free paper layer.

[0010] As a further technical solution of this utility model, a second water guiding channel is provided on the lower surface of the lower dust-free paper layer. One end of the second water guiding channel is placed in the water-absorbing particle layer filled in the mesh of the fiber-reinforced mesh, and the other end of the second water guiding channel is placed on the lower surface of the lower dust-free paper layer and located between adjacent biodegradable nonwoven fabric layers.

[0011] As a further technical solution of this utility model, the first water guiding channel and the second water guiding channel are arranged opposite each other, and the aperture of the first water guiding channel and the second water guiding channel is 90-100μm.

[0012] As a further technical solution of this utility model, the antibacterial layer is a silver ion antibacterial coating with a thickness of 40-50μm, the antistatic layer is a cationic antistatic agent with a thickness of 40-80μm, and the water-absorbing particle layer is composed of high molecular weight water-absorbing resin particles with a particle size of 70-90μm.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention provides a good wiping base through the upper and lower dust-free paper layers. The fiber layer and fiber reinforcement mesh are formed by the alternating weaving of the first and second fibers, which enhances the strength and toughness of the dust-free paper. The antibacterial layer can effectively inhibit the growth of bacteria inside the dust-free paper, and the antistatic layer can effectively prevent the generation of static electricity in the upper and lower dust-free paper layers. The setting of the first and second water guiding channels helps to guide the liquid to pass quickly through the antibacterial and antistatic layers and be absorbed by the water-absorbing particle layer filled in the fiber reinforcement mesh, thereby improving wiping efficiency and cleanliness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the fiber layer structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the nonwoven fabric layer structure of this utility model.

[0018] Reference numerals: antibacterial layer 1, fiber layer 2, first fiber 21, second fiber 22, fiber reinforcing mesh 23, absorbent particle layer 24, antistatic layer 3, upper dust-free paper layer 4, lower dust-free paper layer 5, biodegradable nonwoven fabric layer 6, first water guiding channel 7, second water guiding channel 8. Detailed Implementation

[0019] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0020] like Figures 1 to 3 As shown, this utility model provides a technical solution: an antistatic cleanroom paper, comprising an upper cleanroom paper layer 4, a lower cleanroom paper layer 5, and a fiber layer 2 disposed between the upper cleanroom paper layer 4 and the lower cleanroom paper layer 5. The upper and lower surfaces of the fiber layer 2 are sequentially laminated with an antibacterial layer 1 and an antistatic layer 3 from the inside out. A biodegradable nonwoven fabric layer 6 is spaced apart on the lower surface of the lower cleanroom paper layer 5. The antistatic layer 3 is coated on the lower surface of the upper cleanroom paper layer 4 and the upper surface of the lower cleanroom paper layer 5. The antibacterial layer 1 is coated on the upper and lower surfaces of the fiber layer 2. The fiber layer 2 comprises a first fiber 21 and a second fiber 22, which are woven to form a fiber reinforcing mesh 23. The mesh of the fiber reinforcing mesh 23 is filled with a water-absorbing particle layer 24.

[0021] In the structure of this utility model, the first fiber 21 and the second fiber 22 are alternately arranged in the warp and weft directions of the fiber reinforcing mesh 23, respectively.

[0022] This invention provides a good wiping base through the upper cleanroom paper layer 4 and the lower cleanroom paper layer 5, enhancing the durability and wiping efficiency of the cleanroom paper. The biodegradable non-woven fabric layer 6, spaced apart on the lower surface of the lower cleanroom paper layer 5, helps to improve the wiping effect of the lower cleanroom paper layer 5. The fiber layer 2 and the fiber reinforcing mesh 23 are formed by the alternating weaving of the first fiber 21 and the second fiber 22, which enhances the strength and toughness of the cleanroom paper. The mesh of the fiber reinforcing mesh 23 is filled with absorbent particle layer 24, which improves the water absorption of the cleanroom paper and helps to maintain the cleanliness during wiping. The antibacterial layer 1 can effectively inhibit the growth of bacteria inside the cleanroom paper. The antistatic layer 3 can effectively prevent the generation of static electricity in the upper cleanroom paper layer 4 and the lower cleanroom paper layer 5. The setting of the first water guiding channel 7 and the second water guiding channel 8 helps to guide the liquid to pass quickly through the antibacterial layer 1 and the antistatic layer 3, and be absorbed by the absorbent particle layer 24 filled in the fiber reinforcing mesh 23, thereby improving wiping efficiency and cleanliness.

[0023] The addition of the biodegradable nonwoven fabric layer 6 not only enhances the wiping effect of the lower lint-free paper layer 5, but also forms different wiping capabilities through synergy with the upper lint-free paper layer 4, improving the practicality and applicability of the lint-free paper. The biodegradable nonwoven fabric layer 6 has good moisture absorption and softness. When the lint-free paper is used to wipe the surface, the biodegradable nonwoven fabric layer 6 can more effectively absorb and fix stains, thereby improving the wiping effect. Compared with ordinary lint-free paper layers, the biodegradable nonwoven fabric layer 6 usually has higher abrasion resistance. When wiping repeatedly or facing rough surfaces, the lint-free paper is less likely to break, thereby extending its service life.

[0024] The first water-guiding channel 7 on the upper surface of the upper lint-free paper layer 4 helps to quickly guide liquid to the absorbent particle layer 24 within the fiber-reinforced mesh 23, achieving uniform liquid absorption. At the same time, the upper lint-free paper layer 4 is also protected by the anti-static layer 3, avoiding dust adsorption problems caused by static electricity. The lower lint-free paper layer 5 enhances the wiping effect through the biodegradable non-woven fabric layer 6. The second water-guiding channel 8 on the lower surface is connected to the absorbent particle layer 24, ensuring that the lower lint-free paper layer 5 can effectively absorb liquid. The addition of the biodegradable non-woven fabric layer 6 not only improves the abrasion resistance and moisture absorption during wiping, but also more effectively captures and fixes stains through the rough surface of the biodegradable non-woven fabric layer 6.

[0025] In one of the preferred embodiments of the present invention, the first fiber 21 is PLA fiber with a diameter range of 400-500μm, and the second fiber 22 is PBAT fiber with a diameter range of 400-500μm.

[0026] The diameter of both the first fiber 21 and the second fiber 22 is 400μm, which allows the first fiber 21 and the second fiber 22 to form a more uniform and consistent fiber reinforcement web 23 during the weaving process. This helps to improve the overall performance and stability of the cleanroom paper. At the same time, the 400μm diameter ensures that the fiber has sufficient strength and toughness to maintain the integrity of the structure during wiping and is not easy to break or deform.

[0027] The first fiber 21 is made of PLA fiber. PLA (polylactic acid) is a bio-based, biodegradable material. Using PLA fiber helps reduce environmental pollution. The second fiber 22 is made of PBAT fiber. PBAT (polyethylene terephthalate-co-caprolactone) fiber has good flexibility, which can increase the softness and comfort of the cleanroom paper. The first fiber 21 and the second fiber 22 are alternately arranged in the warp and weft directions of the fiber reinforcement mesh 23. This weaving method can enhance the overall structural strength of the cleanroom paper and make it more durable. The fiber reinforcement mesh 23 formed by weaving not only enhances the strength of the cleanroom paper, but also provides it with additional support and stability. In addition, the mesh of the fiber reinforcement mesh 23 is filled with a layer of absorbent particles 24, which further improves the absorbency of the cleanroom paper.

[0028] As one of the preferred embodiments of this utility model, such as Figure 1 and Figure 3 As shown, a first water-guiding channel 7 is provided on the upper surface of the upper dust-free paper layer 4. One end of the first water-guiding channel 7 is placed in the water-absorbing particle layer 24 filled in the mesh of the fiber-reinforced mesh 23, and the other end of the first water-guiding channel 7 is placed on the upper surface of the upper dust-free paper layer 4. A second water-guiding channel 8 is provided on the lower surface of the lower dust-free paper layer 5. One end of the second water-guiding channel 8 is placed in the water-absorbing particle layer 24 filled in the mesh of the fiber-reinforced mesh 23, and the other end of the second water-guiding channel 8 is placed on the lower surface of the lower dust-free paper layer 5 and located between adjacent biodegradable nonwoven fabric layers 6.

[0029] In the structure of this utility model, the first water guiding channel 7 and the second water guiding channel 8 are arranged vertically opposite each other, and the aperture of the first water guiding channel 7 and the second water guiding channel 8 is 90-100μm. Specifically, the aperture of the first water guiding channel 7 and the second water guiding channel 8 is 90μm.

[0030] The first water guiding channel 7 is disposed on the upper surface of the upper cleanroom paper layer 4. One end of the channel is connected to the absorbent particle layer 24 filled in the mesh of the fiber reinforcing mesh 23, while the other end is exposed on the surface of the upper cleanroom paper layer 4. This allows the liquid to quickly penetrate into the absorbent particle layer 24 when the upper cleanroom paper layer 4 comes into contact with the liquid, thus achieving rapid absorption of moisture on the cleanroom paper. Since the pore size of the first water guiding channel 7 is 90μm, it can ensure smooth liquid flow while preventing excessively large particles of impurities from entering the channel. This ensures the effective utilization of the absorbent particle layer 24 and maximizes the water absorption efficiency. Through the water guiding effect of the first water guiding channel 7, excess liquid can be quickly guided into the cleanroom paper or discharged, thereby keeping the surface of the cleanroom paper relatively dry.

[0031] The second water guiding channel 8 is located on the lower surface of the lower cleanroom paper layer 5. One end of it is connected to the absorbent particle layer 24 filled in the mesh of the fiber reinforcement mesh 23, and the other end is located on the lower surface of the lower cleanroom paper layer 5 and between the adjacent biodegradable nonwoven fabric layers 6. After the lower cleanroom paper layer 5 absorbs liquid, similar to the first water guiding channel 7, the 90μm pore size of the second water guiding channel 8 also helps to prevent excessively large particles of impurities from entering the channel, thereby avoiding the problems of liquid accumulation and blockage.

[0032] By combining the second water channel 8 with the first water channel 7, the air permeability of the dust-free paper can be effectively increased.

[0033] As one of the preferred embodiments of this utility model, the antibacterial layer 1 is a silver ion antibacterial coating with a thickness of 40-50μm, the antistatic layer 3 is a cationic antistatic agent with a thickness of 40-80μm, and the water-absorbing particle layer 24 is composed of high molecular weight water-absorbing resin particles with a particle size of 70-90μm.

[0034] Antibacterial layer 1 is a 50μm silver ion antibacterial coating. Silver ions have broad-spectrum antibacterial properties, effectively inhibiting the growth and reproduction of various bacteria, fungi, and other microorganisms, thus maintaining the cleanliness and hygiene of the cleanroom paper. By inhibiting bacterial growth, the silver ion antibacterial coating also reduces the deterioration and damage of the cleanroom paper caused by bacterial growth, thereby extending the product's service life. Antistatic layer 3 is an 80μm thick cationic antistatic agent. Cationic antistatic agents can effectively neutralize or disperse static charges, preventing static electricity from accumulating on or inside the cleanroom paper surface. The presence of the absorbent particle layer 24 ensures that the cleanroom paper will not attract dust or particles due to static electricity during operation, thereby improving the cleanliness and effectiveness of the product. It also makes the cleanroom paper suitable for wiping the surfaces of electronic products. The absorbent particle layer 24 is composed of superabsorbent polymer particles with a particle size of 70μm. The superabsorbent polymer particles have excellent water absorption properties and can quickly absorb and lock in liquids, thereby keeping the surface of the cleanroom paper dry and clean. The presence of the absorbent particle layer 24 enables the cleanroom paper to remove liquid stains more effectively during wiping, improving wiping efficiency and quality.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An antistatic dust-free paper, characterized in that, The material includes an upper cleanroom paper layer (4), a lower cleanroom paper layer (5), and a fiber layer (2) disposed between the upper cleanroom paper layer (4) and the lower cleanroom paper layer (5). The upper and lower surfaces of the fiber layer (2) are sequentially laminated with an antibacterial layer (1) and an antistatic layer (3) from the inside to the outside. The lower surface of the lower cleanroom paper layer (5) is provided with a biodegradable nonwoven fabric layer (6) at intervals. The antistatic layer (3) is coated on the lower surface of the upper cleanroom paper layer (4) and the upper surface of the lower cleanroom paper layer (5). The antibacterial layer (1) is coated on the upper and lower surfaces of the fiber layer (2). The fiber layer (2) includes a first fiber (21) and a second fiber (22). The first fiber (21) and the second fiber (22) are woven to form a fiber reinforcement mesh (23). The mesh of the fiber reinforcement mesh (23) is filled with a water-absorbing particle layer (24).

2. The antistatic cleanroom paper according to claim 1, characterized in that, The first fiber (21) and the second fiber (22) are alternately arranged in the warp and weft directions of the fiber reinforcement mesh (23), respectively.

3. The antistatic dust-free paper according to claim 1, characterized in that, The first fiber (21) is a PLA fiber with a diameter range of 400-500μm, and the second fiber (22) is a PBAT fiber with a diameter range of 400-500μm.

4. The antistatic dust-free paper according to claim 1, characterized in that, The upper surface of the upper dust-free paper layer (4) is provided with a first water guiding channel (7), one end of the first water guiding channel (7) is placed in the water-absorbing particle layer (24) filled in the mesh of the fiber-reinforced mesh (23), and the other end of the first water guiding channel (7) is placed on the upper surface of the upper dust-free paper layer (4).

5. The antistatic cleanroom paper according to claim 4, characterized in that, The lower surface of the lower dust-free paper layer (5) is provided with a second water guiding channel (8). One end of the second water guiding channel (8) is placed in the water-absorbing particle layer (24) filled in the mesh of the fiber-reinforced mesh (23), and the other end of the second water guiding channel (8) is placed on the lower surface of the lower dust-free paper layer (5) and located between adjacent biodegradable nonwoven fabric layers (6).

6. The antistatic cleanroom paper according to claim 5, characterized in that, The first water guiding channel (7) and the second water guiding channel (8) are arranged opposite each other, and the aperture of the first water guiding channel (7) and the second water guiding channel (8) is 90-100μm.

7. The antistatic cleanroom paper according to claim 1, characterized in that, The antibacterial layer (1) is a silver ion antibacterial coating with a thickness of 40-50μm, the antistatic layer (3) is a cationic antistatic agent with a thickness of 40-80μm, and the water-absorbing particle layer (24) is composed of high molecular weight water-absorbing resin particles with a particle size of 70-90μm.

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