Activated carbon filter paper: porous adsorption core, enabling precise filtration and purification in multiple fields

Against the backdrop of rapid upgrading in industries such as environmental governance, food and medicine, air purification, and water treatment, filter materials are iterating towards the direction of "efficient adsorption, precise interception, green environmental protection, and adaptability to diverse scenarios". Activated carbon filter paper, as a functional filtration consumable that combines the porous adsorption characteristics of activated carbon with the advantages of paper-based material forming, has deeply penetrated into many fields such as industrial waste gas treatment, drinking water purification, food processing, medical protection, etc., thanks to its core advantages of large specific surface area, fast adsorption rate, controllable cost, and easy processing. It has become the core carrier for achieving "solid-liquid separation, gas-solid separation, and harmful substance adsorption". According to industry data, the global market size of activated carbon filter paper will reach 366.1 million US dollars in 2024, and is expected to exceed 531.5 million US dollars in 2032, with a compound growth rate of 4.77%. Among them, the Asia Pacific region has become the core growth pole of the global market with strong demand in the fields of automobile manufacturing, water treatment, and air purification. With the upgrading of adsorption technology and the tightening of environmental policies, activated carbon filter paper is transitioning from basic filtration to high-performance, customized, and recyclable directions. Its technological level and application breadth are directly related to the purification efficiency and product quality of various industries.

1、 Core Definition and Adsorption Mechanism: Analyzing the Core Advantages of Activated Carbon Filter Paper

Activated carbon filter paper is a functional filtering material made by uniformly loading activated carbon (powder, fiber, or a mixture of both) onto plant cellulose, chemical fibers, and other substrates through special processes such as copying, sizing, and modification. It combines the flexibility and formability of paper-based materials with the porous adsorption properties of activated carbon, achieving a dual filtration effect of "physical interception+chemical adsorption". Compared with ordinary filter paper, its core difference lies in the selective adsorption of harmful gases, odors, heavy metal ions, and small particles in fluids through the porous structure of activated carbon. At the same time, it relies on the network structure of paper-based fibers to achieve mechanical interception and adapt to the precise filtration needs of different scenarios.

The core of the adsorption performance of activated carbon filter paper comes from the porous structure of activated carbon - after high-temperature activation treatment, activated carbon forms a large number of micropores, mesopores, and macropores, among which micropores (pore size<2nm) are responsible for adsorbing small molecule harmful substances (such as VOCs, residual chlorine), mesopores (2nm<pore size<50nm) are responsible for adsorbing medium-sized pollutants (such as some organic pigments), and macropores (pore size>50nm) serve as diffusion channels for pollutants, improving the adsorption rate. Its adsorption mechanism can be mainly divided into three categories, which work together to achieve efficient purification:

One is physical adsorption, which relies on the van der Waals force of the porous structure of activated carbon to adsorb pollutant molecules in the fluid onto the pore surface without the need for chemical reactions. It is reversible and can be reused through desorption regeneration. It is suitable for the adsorption and filtration of pollutants such as VOCs, odors, and organic pigments, and is also the core adsorption method of activated carbon filter paper. For example, in drinking water purification, odor substances and trace organic matter in water can be removed through physical adsorption, improving water quality and taste; In air purification, it can quickly adsorb harmful gases such as formaldehyde and benzene, improving air quality.

The second is chemical adsorption, which involves modifying activated carbon (such as ultrasonic modification, thermal modification) by introducing specific functional groups (such as hydroxyl and carboxyl groups) on its surface, reacting chemically with pollutants in the fluid (such as heavy metal ions, acidic gases), forming stable chemical complexes, and achieving irreversible adsorption. It is suitable for industrial wastewater treatment, exhaust gas desulfurization and denitrification, and other scenarios. In patented technology, ultrasonic modification of activated carbon can reduce its surface unstable oxygen-containing functional groups and ash content, increase specific surface area and pore size distribution, significantly improve adsorption performance, especially suitable for the removal of organic matter and residual chlorine in water.

The third is physical interception, relying on the dense network structure formed by paper-based fibers to intercept small particles (such as dust and suspended solids) in the fluid, while fixing activated carbon particles to prevent them from falling off and losing, ensuring the stability and cleanliness of the filtration process. The fiber network structure of high-quality activated carbon filter paper can effectively intercept particles larger than 0.1 μ m without affecting fluid flow rate, while balancing filtration efficiency and flow resistance.

It is worth noting that the adsorption performance of activated carbon filter paper is closely related to the content of activated carbon, pore size distribution, and substrate fiber ratio - the higher the content of activated carbon and the more developed the microporous structure, the larger the adsorption capacity; Reasonable fiber ratio of the substrate (such as the combination of long and short fibers) can improve the load uniformity of activated carbon while ensuring mechanical strength, avoiding the occurrence of "adsorption dead corners". According to relevant patent disclosures, when the content of activated carbon is controlled between 20% and 70%, combined with 10% to 60% plant cellulose and 5% to 20% PE/PET composite short cut fibers, the optimal balance between adsorption performance and mechanical strength can be achieved.

2、 Classification and core process: Product system adapted to diverse scenarios

With the refinement and upgrading of downstream application scenarios, activated carbon filter paper has formed a diversified product system, which can be divided into three mainstream categories according to activated carbon types, production processes, and application scenarios. Each type of product has its own focus on performance and structure, and the core production process is upgrading towards standardization, environmental protection, and refinement, combined with patented technology to achieve performance breakthroughs.

（1） Classified by activated carbon type

1. Powdered activated carbon filter paper: Using powdered activated carbon as the adsorption main body, combined with plant cellulose (cotton pulp, wood pulp or mixed pulp), polyester fiber pulp and other substrates, it is made through the papermaking process and is currently the most widely used type in the market, accounting for more than 60% of the global market share. Its advantages lie in the uniform dispersion of activated carbon, fast adsorption rate, controllable cost, and a specific surface area of up to 800-1500m ²/g. It is suitable for low-end scenarios such as air purification, drinking water filtration, and food decolorization. However, there are issues with activated carbon being prone to detachment and having low mechanical strength. Therefore, it is necessary to use a sizing process (such as adding EP/VAE latex) to improve stability and avoid the phenomenon of "powder falling" during use.

2. Activated carbon fiber filter paper: Activated carbon fiber (ACF) is the main adsorbent, and ACF is the third form of activated carbon. It has a larger specific surface area (up to 1500-3000m ²/g), more uniform pore size distribution, faster adsorption rate, and is less prone to detachment, with higher mechanical strength. This type of product is suitable for high-end filtration scenarios, such as medical protection, industrial VOCs treatment, and air purification in precision electronic manufacturing. It can achieve efficient adsorption of low concentration harmful gases, with an adsorption capacity 2-3 times that of powdered activated carbon filter paper. Some products use a mixture of powdered activated carbon and activated carbon fibers to balance adsorption capacity and cost, making them suitable for mid-range filtration scenarios.

3. Modified activated carbon filter paper: It is a specialized product that enhances the adsorption capacity of activated carbon for specific pollutants through ultrasonic modification, thermal modification, catalyst loading, and other treatments. For example, ultrasound modified activated carbon can increase the specific surface area and pore size distribution, improving the adsorption efficiency of organic matter in water; Modified activated carbon filter paper loaded with silver ions can achieve dual functions of "adsorption+sterilization", suitable for drinking water purification and medical wastewater treatment; Modified products loaded with alkaline substances can selectively adsorb acidic waste gases (such as SO ₂, NO ₓ), suitable for industrial waste gas treatment.

（2） Classified by production process

1. Copying process (wet forming): Currently, the most mainstream production process consists of four core steps: firstly, the preparation of plant cellulose, mixing cotton pulp and wood pulp in a weight ratio of 4:1-8:1, and then pulping and thinning (thinning time of 40-80 minutes, pulping degree of 40-60 ° SR) to make pulp; The second is the preparation of polyester fiber pulp. After pretreatment of PET short cut fibers, three times of thinning (10-30 minutes each time) are carried out, and meta aramid pulp fibers and polyethylene oxide are added to make reinforced fiber pulp; The third method is mixed and blended, which involves mixing plant cellulose, polyester fiber pulp, activated carbon, and PE/PET composite short cut fibers, stirring them evenly, and then making them on a paper machine (with a net pulp concentration of 0.1-0.4%); The fourth is adhesive curing, which improves stability by applying adhesive inside or outside the slurry, and finally dries to form. The advantages of this process lie in high production efficiency, uniform dispersion of activated carbon, controllable product thickness, batch production, and suitability for the production of various conventional activated carbon filter papers.

2. Coating process: Mix activated carbon with binders (such as EVA rubber powder, EP/VAE latex) to form a coating, evenly coat it on the surface of the substrate (such as non-woven fabric, ordinary filter paper), and make it after heat curing treatment. Its advantages lie in simple process, low cost, and the ability to adjust the thickness of activated carbon coating according to demand, adapting to different adsorption requirements; The disadvantage is that the bonding between activated carbon and substrate is not tight enough, and it is prone to detachment after long-term use, with poor adsorption uniformity. It is suitable for low demand filtration scenarios (such as ordinary air purification and simple water treatment). In the external adhesive application, EVA adhesive powder can be evenly sprinkled on the surface of pre formed filter paper (10-30g/㎡), heated at 80-150 ℃ to melt the adhesive powder, infiltrate into the interior of the filter paper and adhere to the fibers, thereby improving the bonding strength.

3. Composite process (laminated molding): The activated carbon filter layer is combined with other functional layers (such as waterproof layer, antibacterial layer, support layer) through hot pressing to form a "multifunctional integrated" structure. For example, the composite product of "activated carbon filter layer+waterproof PE layer+supporting non-woven fabric layer" can be used for outdoor water treatment and industrial wastewater filtration, with adsorption, waterproofing, and support functions; The composite product of "activated carbon fiber layer+antibacterial layer" can be used for medical protection and food processing, achieving dual effects of adsorption and sterilization. The products produced by this process have more comprehensive performance and higher mechanical strength, but the process complexity and cost are relatively high, making it suitable for high-end specialized scenarios.

（3） Classified by application scenario

1. Air purification activated carbon filter paper: mainly used in air purifiers, air conditioning filters, fresh air systems, automotive cable filters, etc., focusing on adsorbing formaldehyde, benzene, and other pollutants in the air TVOC、 Pollutants such as odors and dust require high adsorption capacity, low air resistance, and easy replacement. Ordinary household products often use powdered activated carbon filter paper, while high-end products use activated carbon fiber filter paper. Some products add modified activated carbon to improve the adsorption efficiency of specific VOCs.

2. Water treatment activated carbon filter paper: used for drinking water purification, industrial wastewater treatment, sewage treatment, etc., focusing on adsorbing residual chlorine, organic pollutants, heavy metal ions, odors, etc. in water, requiring high adsorption capacity, good water resistance, and no fiber shedding. Drinking water products must meet food grade standards and use plant-based activated carbon and environmentally friendly binders to ensure that no toxic or harmful substances are released; Industrial wastewater products often use modified activated carbon filter paper, which can selectively adsorb heavy metal ions and difficult to degrade organic compounds.

3. Industrial and special activated carbon filter paper: used for industrial waste gas treatment (such as VOCs, acidic waste gas), food processing (decolorization, odor removal), medical protection (mask, protective clothing filter layer), laboratory filtration, etc. Industrial waste gas products often use modified activated carbon fiber filter paper, which has high temperature resistance and corrosion resistance; Food products must comply with food grade certification, have no odor or residue; Medical products need to have high cleanliness, antibacterial properties, and be able to effectively adsorb bacteria, viruses, and harmful gases.

3、 Core performance indicators and testing standards: ensuring the reliability of filtration and purification

The performance of activated carbon filter paper directly determines the filtration and purification effect. The industry has formed a clear performance index system and testing standards, covering multiple dimensions such as adsorption performance, physical performance, environmental performance, etc., to ensure that the product is suitable for the needs of different scenarios, while ensuring the uniformity and compliance of product quality. The detection methods and standards for core performance indicators have formed dual standards both domestically and internationally, providing a basis for product production and application.

（1） Core performance indicators

1. Adsorption performance: Key indicators for measuring the core efficacy of a product, mainly including specific surface area, iodine value, benzene adsorption rate, and adsorption capacity. The larger the specific surface area, the better the adsorption performance. The specific surface area of ordinary products is 800~1500m ²/g, while high-end activated carbon fiber products can reach 1500~3000m ²/g; Iodine value (measuring micropore content) ≥ 800mg/g, high-end products ≥ 1200mg/g, the higher the iodine value, the stronger the adsorption capacity for small molecule pollutants; Benzene adsorption rate ≥ 30%, used to evaluate the adsorption effect of organic gases; The adsorption capacity (for specific pollutants) varies depending on the application scenario, for example, the adsorption capacity of residual chlorine for drinking water products is ≥ 5mg/g, and the adsorption capacity of formaldehyde for air purification products is ≥ 10mg/g.

2. Physical properties: Ensure the stability of the product during use, mainly including mechanical strength, thickness, pore size distribution, and breathability. Mechanical strength (burst strength ≥ 1000kPa), to avoid damage and powder loss during use; Thickness of 0.1~1.0mm, customizable according to application scenarios; Uniform pore size distribution, with micropores accounting for ≥ 60%, ensuring adsorption efficiency; Breathability ≥ 80mL/(cm ² · min), balancing adsorption efficiency and fluid passage rate to avoid the phenomenon of "pore blockage". In addition, the moisture content needs to be controlled within a reasonable range, as excessive moisture can affect adsorption performance, and is usually measured using the dry weight loss method.

3. Environmental Protection and Cleanliness Performance: Compliant with environmental standards such as RoHS 2.0 and REACH, free from heavy metals (lead, cadmium, etc. ≤ 0.1mg/kg) and harmful volatile compounds; Food grade and medical grade products must comply with corresponding industry standards, have no odor, no residue, a total bacterial count of ≤ 100CFU/g, and a mold and yeast count of ≤ 10CFU/g; Industrial products need to have certain corrosion resistance and high temperature resistance (long-term use temperature ≤ 120 ℃), and adapt to complex industrial environments. The ash content needs to be strictly controlled. If it is too high, it will reduce the adsorption performance. It is usually determined by calcination method.

4. Stability indicators: including adsorption stability and structural stability. Adsorption stability requires a capacity decay rate of ≤ 10% (24 hours) under specified conditions (temperature 25 ℃, relative humidity 50%); The structural stability requirement is that after 10 folds or washings, there should be no damage or powder loss, and the activated carbon detachment rate should be ≤ 0.5% to ensure long-term reliability.

（2） Core testing standards

1. Domestic standards mainly include GB/T 7702.7-2008 "Test Methods for Activated Carbon" (which specifies the physical and chemical performance testing methods for activated carbon), GB/T 12496.10-1999 "Test Methods for Adsorption Performance of Activated Carbon", GB/T 14295-2019 "Air Filters" (applicable to air purification products), and GB/T 5750-2023 "Standard Inspection Methods for Drinking Water" (applicable to water treatment products), which clarify the performance requirements, testing methods, and qualification standards for activated carbon filter paper and are the core basis for production and testing of domestic enterprises.

2. International standards: mainly including ISO 9277:2010 "Determination of specific surface area and porosity - Nitrogen adsorption method" (for specific surface area determination), ISO 14362-1:2017 "Determination of harmful substances in textiles - Benzene adsorption test", ASTM D3467-04 (2010) "Test method for carbon tetrachloride adsorption activity of activated carbon", among which ASTM D3467-04 is an important international standard for evaluating the adsorption performance of activated carbon; In addition, EU food grade certification (EC 1935/2004) and US FDA certification are essential conditions for food grade and medical grade products to enter the international market. Japanese JIS K 1474:2008 and German DIN 19603:2012 also provide clear regulations for the performance testing of activated carbon filter paper.

4、 Application areas: Penetrating multiple industries, continuously upgrading demand

Activated carbon filter paper, with its dual function of "adsorption+filtration", has deeply penetrated into multiple industries such as environmental protection, food, medical, automotive, electronics, etc. With the continuous improvement of downstream industries' requirements for purification efficiency and product quality, its application scenarios continue to expand, and the demand for high-end products has grown significantly, becoming the core driving force for industry growth.

（1） Air purification field

As the most important application field, the demand for air purification accounts for more than 45% of the global activated carbon filter paper market, mainly used for household air purifiers, air conditioning filters, fresh air systems, automotive cable filters, industrial workshop air purification, etc. With the increasing attention to indoor air quality and the prominent issues of haze and VOCs pollution, the requirements for the adsorption performance of activated carbon filter paper are constantly improving. High end air purifiers often use activated carbon fiber filter paper, combined with modification technology, which can efficiently adsorb harmful gases such as formaldehyde, benzene, TVOC, and intercept small particles such as PM2.5; In the automotive industry, with the tightening of air quality standards for car cabins, activated carbon filter paper has become the core component of car air conditioning filters, which can effectively adsorb pollutants such as odors and formaldehyde inside the car, and improve cabin comfort.

（2） Water treatment field

The water treatment field is the second largest application area of activated carbon filter paper, accounting for about 25% of the demand. It is mainly used for drinking water purification (household water purifiers, barrel water filtration), industrial wastewater treatment (electroplating wastewater, printing and dyeing wastewater, chemical wastewater), and deep treatment of wastewater from sewage treatment plants. In household water purifiers, activated carbon filter paper serves as the core filtration component, which can remove residual chlorine, odors, and organic pollutants from water, enhancing the sense and safety of drinking water outlets; In industrial wastewater treatment, modified activated carbon filter paper can selectively adsorb heavy metal ions (such as lead, chromium, mercury) and refractory organic matter, reduce the COD and BOD content of wastewater, and achieve standard discharge of wastewater. For example, a certain water treatment enterprise adopted ultrasonic modified activated carbon filter paper, which increased the removal rate of organic matter in wastewater from 65% to 88%, and the removal rate of heavy metal ions reached over 95%, significantly improving the treatment effect.

（3） Food and pharmaceutical industry

The food industry is mainly used for decolorization and odor removal in food processing, such as sugar production, brewing, juice processing, etc. Food grade activated carbon filter paper is used to remove pigments and odor substances from food, improve food quality, and comply with food grade safety standards, with no residue or odor. The pharmaceutical field is mainly used for medical protection (masks, protective clothing filter layers) and filtration and purification in drug production. It is required to have high cleanliness, antibacterial properties, no fiber shedding, and can effectively adsorb bacteria, viruses, and harmful gases to ensure the medical environment and drug quality. For example, the activated carbon filter layer in medical masks can adsorb bacteria, viruses, and harmful gases in the air, enhancing the protective effect.

（4） Industrial and other fields

1. Industrial waste gas treatment: Used for the treatment of VOCs waste gas and acidic waste gas (SO ₂, NO ₓ) in industries such as chemical, printing, painting, and pharmaceuticals. Modified activated carbon fiber filter paper is used, which has high temperature resistance, corrosion resistance, and can efficiently adsorb harmful components in waste gas, achieve standard emissions of waste gas, and reduce environmental pollution. With the tightening of environmental policies, the demand for industrial waste gas treatment continues to grow, becoming one of the core application scenarios for high-end activated carbon filter paper.

2. Laboratory and precision manufacturing: The filtration and decolorization used in chemical experiments in the laboratory require high adsorption accuracy and cleanliness; In precision electronic manufacturing, it is used for workshop air purification, which can adsorb dust and harmful gases in the air, avoid pollution to electronic components, and ensure product qualification rate. In addition, activated carbon filter paper can also be used in special scenarios such as military chemical protection and ship water treatment, adapting to the filtration and purification needs in extreme environments.

5、 Industry Development Status and Future Trends: Opportunities and Challenges Coexist

At present, the global activated carbon filter paper industry is in a rapid development stage, with a continuously expanding market size and upgrading product structure. At the same time, it faces multiple challenges such as raw material costs, technological innovation, and environmental compliance. In the future, it will achieve high-quality development in the direction of high performance, customization, greening, and intelligence, resonating with the upgrading of downstream industries.

（1） Industry Development Status

1. Steady growth in market size: The global market size of activated carbon filter paper will reach 366.1 million US dollars in 2024, and is expected to exceed 531.5 million US dollars in 2032, with a compound growth rate of 4.77%; As the world's largest producer and consumer, China's market size is expected to exceed 3 billion yuan by 2025, mainly driven by the growing demand in the fields of air purification, water treatment, and automobiles, as well as the continuous tightening of environmental policies. The Asia Pacific region, with its advantages in automobile manufacturing and water treatment industries, has become the core growth pole of the global market.

2. Continuous upgrading of product structure: Low end powdered activated carbon filter paper still holds a certain market share, but mid to high end products (activated carbon fiber, modified activated carbon filter paper) have a faster growth rate and an increasing proportion year by year. Meanwhile, multifunctional composite products (adsorption+antibacterial+waterproof) have become a hot spot in the market, such as antibacterial activated carbon filter paper loaded with silver ions, waterproof activated carbon filter paper, etc., which are suitable for more segmented scenarios. The application of patented technology promotes product performance upgrades, such as ultrasonic modification, composite fiber ratio and other technologies, effectively solving the problems of powder loss and low adsorption efficiency in traditional products.

3. Collaborative acceleration of industrial chain: The collaborative innovation between upstream raw material suppliers (activated carbon, plant fiber, binder manufacturers), midstream manufacturing enterprises, and downstream end users is becoming increasingly close. Leading enterprises establish joint laboratories to jointly develop new products that are suitable for specific scenarios. For example, activated carbon manufacturers collaborate with filter paper companies to develop specialized modified activated carbon to enhance product adsorption targeting; Downstream water purifier manufacturers collaborate with filter paper companies to customize specialized filter paper suitable for water purifiers, enhancing purification efficiency.

4. Challenges still exist: firstly, high-end raw materials rely on imports, and core materials such as high-quality activated carbon fibers and high-end modifiers still heavily rely on overseas suppliers, with a localization rate of less than 35%, resulting in high production costs for high-end products; Secondly, there is a lack of technological innovation capability, with some enterprises still stuck in traditional copying and coating processes, and weak application capabilities in high-end composite processes and modification technologies, resulting in a gap in product performance compared to international leading enterprises; Thirdly, the pressure on environmental protection has increased, and some adhesives (such as solvent based adhesives) in traditional production processes are facing elimination. The research and promotion costs of green environmental protection processes are relatively high; Fourthly, industry standards need to be improved, and the specific standards for some segmented scenarios (such as special industrial waste gas treatment) are still unclear, resulting in uneven product quality; The fifth challenge is facing competition from membrane filtration and synthetic composite filtration materials, leading to increased market competition pressure.

（2） Future Development Trends

1. Greening has become a core trend: Under the "dual carbon" policy and environmental compliance requirements, recyclable, biodegradable, and non-toxic activated carbon filter paper will become the mainstream in the market. In the future, the application of environmentally friendly raw materials such as biobased binders and biodegradable plant fibers will be more widespread, and production processes will be upgraded towards solvent-free and low emission directions; At the same time, the regeneration technology of activated carbon will continue to improve, achieving the cycle of "adsorption desorption regeneration" and reducing resource waste and environmental pollution. For example, the regeneration technology of powdered activated carbon filter paper can significantly reduce the cost of use.

2. High performance and customized upgrade: The refined requirements of downstream scenarios will drive the upgrading of activated carbon filter paper towards "specialization and high performance", and develop customized products for different industries and pollutants. For example, in the treatment of industrial VOCs, the development of modified activated carbon fiber filter paper with high adsorption capacity, high temperature resistance, and corrosion resistance; Develop specialized products for drinking water purification that are food grade, residue free, and highly efficient in removing residual chlorine; Develop customized filter paper with low air resistance and efficient formaldehyde adsorption for automotive cabins. At the same time, through activated carbon modification technologies such as loaded catalysts and ultrasonic modification, the adsorption efficiency of the product for specific pollutants is improved, achieving "precise adsorption".

3. Multi functional integration development: In the future, activated carbon filter paper will break through the single adsorption function and develop towards the direction of multi-functional integration such as "adsorption+filtration+antibacterial+waterproof+traceable". For example, activated carbon filter paper with integrated antibacterial function can simultaneously achieve adsorption and sterilization, suitable for medical and food fields; Products embedded with RFID chips can achieve full traceability of production and use processes, improving the level of product quality control; Products with composite waterproof layers can adapt to outdoor and humid environments, expanding their application scenarios.

4. Accelerated localization substitution: With the enhancement of domestic enterprises' technological innovation capabilities and the support of the country for high-end functional materials, the localization substitution of high-end activated carbon filter paper and core raw materials will become a key trend. In the future, domestic enterprises will increase their research and development investment in core raw materials such as activated carbon fiber and high-end modifiers, break through core bottlenecks such as composite processes and modification technologies, and enhance the independent and controllable level of the industrial chain; At the same time, participate in the formulation of international standards, enhance industry discourse power, and promote domestic products to enter the international market.

5. Production intelligence upgrade: With the transformation of manufacturing towards automation and intelligence, the production process of activated carbon filter paper will gradually achieve automation and intelligence. By introducing automated copying, precise temperature control drying, online detection and other equipment, production efficiency and product quality will be improved, and labor costs will be reduced; At the same time, through big data and artificial intelligence technology, production parameters are optimized to achieve precise control of product performance and meet the customized needs of different customers.