Composite dust-free paper with high cleaning capability

Abstract

The utility model relates to the technical field of dust-free paper, in particular to high-cleaning-capacity composite dust-free paper which comprises composite dust-free paper, the composite dust-free paper comprises a first dust-free paper layer, an activated carbon adsorption layer and a second dust-free paper layer which are arranged in the composite sequence, and the face, away from the activated carbon adsorption layer, of the first dust-free paper layer is covered with an anti-static coating. According to the dust-free paper, the activated carbon adsorption layer is mixed between the two layers of dust-free paper, liquid on the surface of an object is rapidly absorbed through the adsorption capacity of activated carbon, the clean surface is kept dry, meanwhile, one face of the dust-free paper is coated with the anti-static coating, potential damage of static electricity to products or equipment is reduced, and the dust-free paper is environmentally friendly. The activated carbon particles are arranged in the anti-static coating, so that the cleaning effect can be further improved, and the activated carbon particles are stored in the anti-static coating, so that the flatness of the composite dust-free paper cannot be influenced.

Description

Technical Field

[0001] The present application relates to the technical field of dust-free paper, and specifically to a composite dust-free paper with strong cleaning ability. Background Art

[0002] As a cleaning tool, dust-free paper has excellent cleaning performance. In terms of application scenarios, dust-free paper is widely used in electronics, optics, medical and other fields. For example, in the electronics industry, dust-free paper is used to wipe semiconductor devices, integrated circuits, printed circuit boards, etc. to ensure the quality and performance of electronic products. In the optical industry, dust-free paper is used to clean lenses, optical instruments, etc. to ensure the accuracy and clarity of optical equipment. In the medical field, dust-free paper is used to clean medical equipment, surgical instruments, etc. to maintain the hygiene and safety of the medical environment.

[0003] For example, a kind of anti-pilling composite dust-free paper (publication number: CN212046264U, publication date: 2020-12-01), includes a wood pulp fiber layer located on the upper surface and the bottom surface, a conductive cloth layer is provided on the inner side of the wood pulp fiber layer, a unidirectional absorption layer is provided on the inner side of the conductive cloth layer, a mesh layer is provided on the inner side of the unidirectional absorption layer, a toughness layer is provided on the inner side of the mesh layer, a water storage layer is provided on the inner side of the toughness layer, and a polyester fiber layer is provided on the outer side of the wood pulp fiber layer, and the wood pulp fiber layer, the conductive cloth layer, the unidirectional absorption layer, the mesh layer, the toughness layer, the water storage layer and the polyester fiber layer are connected by edge melting, edge sealing and hot pressing.

[0004] The dust-free paper can increase the friction area of ​​the wiped object through the convex edge to improve the cleaning effect. The dust-free paper will not produce burrs on the surface after wiping the object, can remove static electricity on the surface of the wiped object, and is not easy to be permanently deformed after long-term use. However, the dust-free paper focuses on removing static electricity and improving the cleaning effect by increasing friction. The dust-free paper used in the electronics industry needs to be able to quickly absorb liquid and keep the clean surface dry; it needs to be soft enough to avoid any damage during the cleaning process. The convex edge can increase the friction area when wiping the object, and the convex edge can also easily cause damage to electronic devices. In terms of adsorbing liquids, activated carbon has more advantages. Utility Model Content

[0005] In view of the technical defects existing in the background technology, the utility model proposes a composite dust-free paper with strong cleaning ability, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0006] A composite dust-free paper with strong cleaning ability includes a composite dust-free paper, wherein the composite dust-free paper includes a first dust-free paper layer, an activated carbon adsorption layer and a second dust-free paper layer arranged in a composite order, wherein the first dust-free paper layer is covered with an antistatic coating on a side away from the activated carbon adsorption layer, wherein first activated carbon particles are arranged in the antistatic coating, and the activated carbon adsorption layer is formed by fixed fibers interspersed with second activated carbon particles arranged randomly.

[0007] As a further technical solution of the utility model, the method for making the antistatic coating comprises the following steps:

[0008] Step 1: performing necessary pretreatment on the first activated carbon particles;

[0009] Step 2: adding the first activated carbon particles into the antistatic coating material and uniformly dispersing them by stirring to form a mixed coating;

[0010] Step 3: applying the mixed coating of step 2 on the surface of the composite dust-free paper provided with the first dust-free paper layer to form an antistatic coating;

[0011] Step 4: curing the composite dust-free paper coated with the antistatic coating.

[0012] As a further technical solution of the utility model, the density of the second activated carbon particles of the activated carbon adsorption layer is greater than the density of the first activated carbon particles of the antistatic coating.

[0013] As a further technical solution of the utility model, the size of the second activated carbon particles of the activated carbon adsorption layer is larger than the size of the first activated carbon particles of the antistatic coating.

[0014] As a further technical solution of the utility model, the upper and lower surfaces of the activated carbon adsorption layer are compositely connected to the first dust-free paper layer and the second dust-free paper layer through adhesive layers respectively.

[0015] As a further technical solution of the present invention, the first dust-free paper layer and the second dust-free paper layer are respectively composed of wood pulp fibers and polyester fibers.

[0016] As a further technical solution of the present invention, a plurality of pits are provided on a side of the first dust-free paper layer away from the activated carbon adsorption layer.

[0017] As a further technical solution of the utility model, the fixed fibers in the activated carbon adsorption layer are polyester fibers, the fixed fibers are randomly arranged to form a plurality of pores, and the activated carbon particles in the activated carbon adsorption layer are arranged in the pores.

[0018] The beneficial effects of the utility model are:

[0019] The utility model sandwiches an activated carbon adsorption layer between two layers of dust-free paper, and through the adsorption capacity of the activated carbon, the liquid on the surface of the object is quickly absorbed to keep the clean surface dry. At the same time, the utility model applies an anti-static coating on one side of the first dust-free paper layer to reduce the potential damage of static electricity to products or equipment.

[0020] The activated carbon particles in the anti-static coating can further improve the cleaning effect. The activated carbon particles themselves have good mechanical strength and wear resistance. Adding them to the anti-static coating can enhance the durability and wear resistance of the coating. The activated carbon particles are stored in the anti-static coating and will not affect the flatness of the surface of the composite dust-free paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The diagram is a structural diagram of a composite dust-free paper with strong cleaning ability.

[0022] Figure 2 The cross-sectional structure diagram of a composite dust-free paper with strong cleaning ability.

[0023] Figure 3 for Figure 2 AA partial enlargement image.

[0024] Among them: a first dust-free paper layer 1, pits 11, an activated carbon adsorption layer 2, fixed fibers 21, second activated carbon particles 22, a second dust-free paper layer 3, an antistatic coating 4, and first activated carbon particles 41. DETAILED DESCRIPTION

[0025] The following is combined with Figures 1 to 3 The implementation methods of the present invention are described with relevant embodiments, but the implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as the known technology in this technical field and can be known and mastered by the technicians in this technical field.

[0026] The utility model provides a composite dust-free paper with strong cleaning ability, such as Figure 1 and Figure 2 As shown, it includes a composite dust-free paper, which includes a first dust-free paper layer 1, an activated carbon adsorption layer 2 and a second dust-free paper layer arranged in a composite order, and the first dust-free paper layer 1 is covered with an antistatic coating 4 on one side away from the activated carbon adsorption layer 2, and the antistatic coating 4 is provided with first activated carbon particles 41, and the activated carbon adsorption layer 2 is composed of fixed fibers 21 interspersed with second activated carbon particles 22 randomly arranged.

[0027] The utility model sandwiches an activated carbon adsorption layer 2 between two layers of dust-free paper. Through the adsorption capacity of the activated carbon, the liquid on the surface of the object is quickly absorbed to keep the clean surface dry. At the same time, the utility model applies an anti-static coating 4 on one side of the first dust-free paper layer 1 to reduce the potential damage of static electricity to products or equipment.

[0028] The activated carbon particles in the antistatic coating 4 can further improve the cleaning effect. The activated carbon particles themselves have good mechanical strength and wear resistance. Adding them to the antistatic coating 4 can enhance the durability and wear resistance of the coating. The activated carbon particles are stored in the antistatic coating 4 and will not affect the flatness of the surface of the composite dust-free paper.

[0029] More specifically, dust-free paper, as a highly efficient and low-dust cleaning material, is widely used in modern industrial production, laboratory research, medical fields, etc. The main raw material of dust-free paper is wood pulp fiber, which ensures its good water absorption, softness and environmental protection. At the same time, dust-free paper adopts air-laid technology, so that the fibers can be evenly distributed to form a dense fiber network, thereby improving the strength and water absorption of dust-free paper.

[0030] The dust-free paper has extremely high water absorption and good water retention performance, which can quickly and effectively absorb and lock water and dirt, thus achieving efficient cleaning. In a low-dust and anti-static environment, the dust-free paper can effectively control the amount of static electricity generated, reduce the flying of dust, and ensure the cleanliness of the cleaning environment. Furthermore, due to its unique physical properties and materials, the dust-free paper can be used multiple times, which is both economical and environmentally friendly.

[0031] To sum up, dust-free paper plays an important role in modern industrial production, laboratory research, medical field and other aspects with its unique physical properties, efficient cleaning ability, low dust and anti-static characteristics and a wide range of application scenarios.

[0032] There are currently several ways to further improve the cleaning ability of dust-free paper:

[0033] Start with the materials: Use fiber materials with stronger water absorption and adsorption capacity, such as specially treated polyester fibers or nylon fibers, to enhance the dust and stain adsorption capacity of dust-free paper; in the production process of dust-free paper, add additives with antibacterial, antistatic, anti-oil and other functions to improve the cleaning effect of dust-free paper in specific environments.

[0034] Start with the structure: By adjusting the arrangement and distribution of fibers, the dust-free paper can more effectively capture and fix dust particles when wiping; appropriately increasing the thickness and density of the dust-free paper can improve its carrying capacity and adsorption capacity, thereby enhancing the cleaning effect.

[0035] Start with the process: optimize the coating process on the surface of dust-free paper to make it more uniform and smooth, so as to enhance the adsorption and cleaning effect of dust-free paper; in the production process of dust-free paper, strictly control the quality of each link to ensure that the material, structure and performance of dust-free paper meet the standard requirements.

[0036] The present application combines the material and structural levels, using an activated carbon adsorption layer 2 sandwiched between two layers of dust-free paper, and utilizing the adsorption characteristics of activated carbon to enhance the dust-free paper's ability to absorb moisture and dirt, thereby enhancing the dust-free paper's cleaning ability.

[0037] The activated carbon adsorption layer 2 is composed of fixed fibers 21 interspersed with second activated carbon particles 22 arranged randomly. The activated carbon particles have a porous structure with rich pore structure, including micropores, transitional pores and macropores, which makes the activated carbon have a large internal surface area. The specific surface area can usually reach 500 to 1700 m2 / g. This high specific surface area enables the activated carbon to adsorb metal ions, harmful gases, organic pollutants, pigments, etc. in wastewater and exhaust gas, thereby achieving efficient adsorption performance.

[0038] The randomly arranged structure of the fixed fibers 21 and the second activated carbon particles 22 provides the activated carbon with a larger contact area and a more complex adsorption path, enabling it to better adapt to pollutant molecules of different shapes and sizes. This structure also enables the activated carbon to cope with pollutants of different concentrations and compositions, showing good adaptability.

[0039] Activated carbon adsorption does not require the addition of chemical reagents such as flocculants and oxidants, and directly uses the microporous structure of activated carbon for adsorption, which is easy to operate. At the same time, the raw materials used for activated carbon, such as shells, coal and wood, are relatively low in cost, and the technical requirements for adsorption are not high, and the operation is flexible.

[0040] After the activated carbon is saturated with adsorption, it can be reused by regeneration. There are many regeneration methods, such as thermal regeneration, biological regeneration, chemical solution regeneration, electrochemical regeneration, etc. These methods have excellent effects on the regeneration of activated carbon. The adsorption capacity of activated carbon after regeneration does not decrease, realizing the conservation and utilization of resources. For adsorbed substances that are difficult to degrade, the activated carbon can be directly landfilled with them to prevent re-pollution of the water body, and there is no secondary pollution problem.

[0041] At the same time, the present application covers the first dust-free paper layer 1 with an antistatic coating 4 on the side away from the activated carbon adsorption layer 2, which can effectively prevent the generation and accumulation of static electricity, and reduce dust adsorption and equipment failure caused by static electricity. This is very important for environments such as dust-free workshops, electronic manufacturing and precision instruments. In addition, the antistatic coating 4 can reduce the resistivity of the dust-free paper surface, making dust and particles easier to be adsorbed and removed, thereby improving the cleaning effect.

[0042] like Figure 2 As shown, the antistatic coating 4 is provided with first activated carbon particles 41, which can further enhance the adsorption capacity of the antistatic coating 4 for dust, particles and other pollutants, thereby improving the cleaning effect. The addition of the first activated carbon particles 41 will not weaken the antistatic performance of the coating, but may help dissipate the charge due to its good conductivity, further reducing the risk of static electricity. At the same time, the activated carbon particles themselves have good mechanical strength and wear resistance, and adding them to the coating can enhance the durability and wear resistance of the coating.

[0043] The surface of electronic devices is usually fragile, and uneven dust-free paper may scratch or damage its surface. Therefore, dust-free paper with a flat surface can better protect electronic devices and avoid secondary damage during the cleaning process. The first activated carbon particles 41 of the present application are stored in the antistatic coating 4, which will not affect the flatness of the surface of the composite dust-free paper, and can prevent dust-free paper with an uneven surface from damaging electronic devices.

[0044] As one of the preferred embodiments of the present invention, the method for making the antistatic coating 4 comprises the following steps:

[0045] Step 1: Perform necessary pretreatment on the first activated carbon particles 41, such as washing, drying, screening, etc., to remove impurities and adjust the particle size. It should be noted that the first activated carbon particles 41 are present in the antistatic coating 4, so the particle size needs to be smaller to prevent the first activated carbon particles 41 from damaging electronic devices.

[0046] Step 2: The antistatic coating 4 material and necessary additives (such as curing agent, leveling agent, etc.) are mixed evenly in a certain proportion, and then the first activated carbon particles 41 are doped into the antistatic coating 4 material in an appropriate amount, and are evenly dispersed by stirring to form a mixed coating. This method may cause the first activated carbon particles 41 to be unevenly distributed in the coating, but the density of the first activated carbon particles 41 in the antistatic coating 4 is not high, and its unevenness is within a controllable range.

[0047] Step 3: Apply the mixed coating of step 2 on the surface of the composite dust-free paper having the first dust-free paper layer 1 to form an antistatic coating 4; spraying, rolling, dipping and the like can also be selected according to actual use.

[0048] Step 4: Curing the composite dust-free paper coated with the antistatic coating 4. Considering the particularity of dust-free paper and the coating material, a suitable curing method can be selected. Common coating curing methods include natural drying, baking and radiation curing.

[0049] Natural drying: Due to the special properties of activated carbon and antistatic coating 4, longer drying time and more stable environmental conditions may be required. At the same time, it is necessary to ensure that the dust-free paper is in a well-ventilated environment with appropriate humidity and temperature to avoid contamination of the coating or affect the curing effect.

[0050] Drying: Drying is a faster and more controlled curing method. For dust-free paper coated with activated carbon particles and antistatic coating4, the appropriate drying temperature and time can be selected. Low temperature drying (60-80°C) is suitable for temperature-sensitive coating materials, while medium temperature drying (100-150°C) is more suitable for coatings that require higher curing temperatures. During the drying process, hot air convection, thermal far-infrared radiation, etc. can be used to ensure that the coating is evenly heated and improve the curing effect.

[0051] Radiation curing: Radiation curing is an efficient and environmentally friendly curing method suitable for coating materials that are sensitive to temperature and humidity. By using radiation sources such as ultraviolet (UV) or electron beam (EB), the coating can be cured quickly, improving the stability and durability of the coating.

[0052] As one of the preferred embodiments of the present invention, the density of the second activated carbon particles 22 of the activated carbon adsorption layer 2 is greater than the density of the first activated carbon particles 41 of the antistatic coating 4. The size of the second activated carbon particles 22 of the activated carbon adsorption layer 2 is greater than the size of the first activated carbon particles 41 of the antistatic coating 4.

[0053] The function of the second activated carbon particles 22 is to improve the overall adsorption performance of the composite dust-free paper, thereby improving the cleaning ability of the composite dust-free paper; while the first activated carbon particles 41 need to enhance the adsorption capacity and wear resistance of the antistatic coating 4 and should not affect the surface flatness. Therefore, the first activated carbon particles 41 need to be smaller in size and less in number, and the second activated carbon particles 22 need to be larger and denser than the first activated carbon particles 41 to further improve the overall adsorption performance of the composite dust-free paper.

[0054] As one of the preferred embodiments of the present invention, Figure 3 As shown, the upper and lower surfaces of the activated carbon adsorption layer 2 are compositely connected to the first dust-free paper layer 1 and the second dust-free paper layer through adhesive layers, respectively. Composite connection through adhesive layers does not require drilling holes in the object, thereby reducing material damage and connection costs. A plurality of pits 11 are provided on the side of the first dust-free paper layer 1 away from the activated carbon adsorption layer 2. The first dust-free paper layer 1 does not need to directly contact the object to be cleaned, and pits 11 are provided on its surface. The presence of pits 11 increases the contact area between the dust-free paper layer and the adhesive layer. The increase in contact area helps to improve the adhesion between the two because more surface areas can participate in the adhesion process. The adhesion effect between the first dust-free paper layer 1 and the adhesive layer is enhanced, thereby enhancing the adhesion effect between the first dust-free paper layer 1 and the antistatic coating 4.

[0055] As one of the preferred embodiments of the utility model, the first dust-free paper layer 1 and the second dust-free paper layer are respectively composed of wood pulp fibers and polyester fibers. The combination of wood pulp fibers and polyester fibers makes the dust-free paper layer highly elastic and soft, suitable for various cleaning and wiping needs. This combined dust-free paper layer has excellent water absorption and water retention, can effectively absorb and retain moisture during the cleaning process, and improve the cleaning effect. Compared with meltblown cloth, the cost of wood pulp fibers and polyester fibers may be lower, which makes the dust-free paper layer composed of them have certain advantages in price. In addition, wood pulp fibers and polyester fibers are both recyclable materials, and the dust-free paper layer made of them performs well in terms of environmental protection.

[0056] like Figure 2 As shown, the fixed fiber 21 in the activated carbon adsorption layer 2 is polyester fiber. Polyester fiber is an ideal choice for making the fixed fiber 21 of the activated carbon adsorption layer 2 due to its excellent physical and chemical properties, such as wear resistance, corrosion resistance and good elasticity. The fixed fibers 21 are randomly arranged to form a plurality of pores, and the activated carbon particles in the activated carbon adsorption layer 2 are arranged in the pores. The formation of the pores provides sufficient storage space for the activated carbon particles. These pores not only increase the contact area between the activated carbon and the pollutants, but also help to improve the adsorption efficiency and adsorption capacity. The activated carbon particles are arranged in the pores. This design enables the activated carbon particles to make full use of the pore space to achieve efficient adsorption. At the same time, due to the close combination between the activated carbon particles and the fixed fibers 21, the stability of the adsorption layer structure and the reliability of long-term use are guaranteed.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A composite dust-free paper with strong cleaning ability, comprising a composite dust-free paper, characterized in that: The composite dust-free paper comprises a first dust-free paper layer (1), an activated carbon adsorption layer (2) and a second dust-free paper layer (3) arranged in a composite order; a side of the first dust-free paper layer (1) away from the activated carbon adsorption layer (2) is covered with an antistatic coating (4); the upper and lower sides of the activated carbon adsorption layer (2) are compositely connected to the first dust-free paper layer (1) and the second dust-free paper layer (3) via adhesive layers respectively; a side of the first dust-free paper layer (1) away from the activated carbon adsorption layer (2) is provided with a plurality of pits (11).

2. The composite dust-free paper with strong cleaning ability according to claim 1, characterized in that: The first dust-free paper layer (1) and the second dust-free paper layer (3) are respectively composed of wood pulp fibers and polyester fibers.

3. The composite dust-free paper with strong cleaning ability according to claim 1, characterized in that: The fixed fibers (21) in the activated carbon adsorption layer (2) are polyester fibers.

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