Food-Grade PP Filter Cartridge: Filter Cartridge for Purifying Water in Daily Chemical Washing Product Production
Product Introduction
This food-grade PP filter cartridge is a professional water purification component custom-developed for the production water of daily chemical washing products, manufactured in strict compliance with FDA 21 CFR 177.1520, EU REACH, food contact material safety standards and daily chemical production quality specifications. Crafted from high-purity food-grade polypropylene (PP) fiber with no leachable harmful substances, the cartridge adopts an advanced precision spiral winding process combined with an adhesive-free hot-melt integral sealing structure, eliminating secondary pollution risks from chemical additives, binders or sealants. Specifically optimized for the water quality requirements of daily chemical washing product production—including low particulate content, no colloidal impurities and compliance with food-grade safety standards—it efficiently removes suspended solids, fine particulates, colloidal substances, rust particles, sediment and micro-scale insoluble impurities from production water (tap water, purified water, softened water) for washing products such as laundry detergent, dish soap, shower gel and shampoo. The product features a high-flux, low-resistance structural design, perfectly matched with standard filter housings in the daily chemical production industry, realizing stable and efficient food-grade water purification, ensuring the safety and purity of production water, and laying a solid foundation for the production of high-quality, compliant daily chemical washing products that meet national and international safety standards.
Filtration Precision
Targeting the graded water purification needs of different production links and different types of daily chemical washing products, this food-grade PP filter cartridge provides a full range of precise and adaptable filtration precision options, with nominal filtration ratings ranging from 5 μm to 80 μm. The 5 μm, 10 μm and 20 μm high-precision models are suitable for the fine water purification of high-end daily chemical washing products such as mild baby laundry detergent, amino acid shampoo and plant-based shower gel, achieving efficient interception of fine particulates and colloids to ensure the transparency, uniformity and mildness of finished washing products; the 30 μm, 40 μm and 50 μm medium-precision models are applied to the water purification of conventional washing products including household laundry detergent, dish soap and body wash, effectively removing medium-sized particulate impurities and rust particles to balance purification efficiency and production cost; the 60 μm and 80 μm coarse-precision models are used for the pre-purification of raw production water with relatively high impurity content for bulk washing product production, removing large solid impurities and sediment to protect subsequent production equipment and reduce the filtration load of fine purification links. All precision models maintain consistent and stable interception efficiency under the operating conditions of daily chemical production water systems, with zero particle leakage, and the food-grade raw material properties remain unchanged during use, fully meeting the stringent water purification and safety requirements of the daily chemical washing product industry for production water.
Flux
The flux performance of this food-grade PP filter cartridge is fully optimized for the large-flow production characteristics of daily chemical washing products and the low-viscosity nature of production water, with a pure water flux of 90-180 L/min·m² at 25℃ and 0.1MPa operating pressure—far higher than conventional precision filter cartridges to adapt to industrial-scale production water demand. For the standard 10-inch cartridge, the initial pure water flux reaches 12-24 L/min; the 20-inch cartridge is 24-48 L/min, and the 40-inch large-specification cartridge can reach 48-96 L/min, perfectly matching the water consumption demand of small, medium and large-scale daily chemical washing product production lines (from small batch customization to mass industrial production). For actual production water (softened water, tap water, purified water) used in daily chemical washing product production, the actual working flux is basically consistent with the pure water flux, and even for raw water with slight turbidity, the flux only shows a mild and slow decrease during long-term use. The optimized low-resistance gradient filtration channel design ensures that the flux does not decrease sharply with the reduction of filtration precision, and the high dirt-holding capacity delays flux attenuation, meeting the continuous large-flow production water demand of daily chemical washing product plants without causing pressure loss or water supply shortage in the production water system.
Salt Rejection Rate
As a dedicated food-grade PP filter cartridge for purifying production water of daily chemical washing products, the product is designed only for the physical interception of insoluble particulate and colloidal impurities in water, and does not have any desalination, ion removal or dissolved substance retention function, with a salt rejection rate close to 0%. It neither intercepts soluble inorganic salts, minerals, small molecular weight organic substances nor affects the pH value, conductivity, hardness and other chemical properties of production water, and has no impact on the formulation reaction, emulsification effect and product performance of daily chemical washing products. The softening or desalination of production water (if required by product formulation) is undertaken by subsequent water treatment equipment such as ion exchange resins and softeners; the core function of this filter cartridge is to remove particulate and colloidal impurities in production water to ensure the clarity of washing product raw materials, avoid the generation of precipitates or turbidity in finished products, and prevent particulate impurities from clogging production nozzles and emulsification equipment. The abandonment of desalination design makes the cartridge focus on particulate impurity removal with a high-flux structure, which is the key to realizing its large flow, low resistance and high efficiency characteristics adapted to daily chemical industrial production.
Pressure Drop
The product adopts an optimized ultra-low resistance gradient winding structure and high-fluidity food-grade PP fiber material, with an initial pressure drop of ≤0.010MPa at 25℃ and rated pure water flux for all filtration precision specifications—lower than the industry standard for daily chemical production water filter cartridges. This ultra-low initial pressure drop effectively reduces the energy consumption of the production water delivery pump in daily chemical washing product production lines, avoids excessive pressure loss in the water purification link, and ensures the normal water supply pressure of subsequent production processes such as raw material mixing, emulsification and filling. During use, the pressure drop of the cartridge increases in a slow and linear manner with the gradual accumulation of intercepted impurities, rather than a sudden sharp rise; the recommended terminal operating pressure drop is uniformly set to ≤0.07MPa for all precision models. The slow pressure drop rise rate is a key advantage of this cartridge, which allows for longer continuous use time and reduces the frequency of shutdown and replacement operations for the production water purification system, ensuring the uninterrupted production of daily chemical washing product lines. Even for production water with slightly higher turbidity, the pressure drop rise rate remains stable, avoiding the sudden pressure increase of the production water system caused by impurity accumulation.
Molecular Weight Cutoff (MWCO)
Combined with the filtration precision, gradient winding density and the impurity characteristics of daily chemical washing product production water, the optimized Molecular Weight Cutoff (MWCO) range is 100,000 Da to 400,000 Da for this food-grade PP filter cartridge, specially tailored for the interception of macromolecular colloidal and particulate aggregate impurities in production water. This wide MWCO range is designed for the physical interception of insoluble impurities in production water, and can effectively capture large molecular weight impurities such as clay colloid aggregates, rust particle clusters, fiber polymers, sediment aggregates and other insoluble particulate impurities (MW > 100,000 Da) in production water, while allowing all small and medium molecular weight substances (water molecules, inorganic salts, dissolved small molecular weight additives) in production water to pass through smoothly. For different filtration precision models, the MWCO range is adaptively adjusted: the 5/10/20 μm high-precision models have a MWCO of 100,000 Da-200,000 Da for intercepting fine macromolecular colloids and micro-particulate aggregates; the 60/80 μm coarse-precision models have a MWCO of 300,000 Da-400,000 Da for capturing large particulate and macromolecular aggregate impurities. The stable MWCO setting ensures efficient and selective interception of insoluble impurities in production water, without affecting the dissolved components and chemical properties of water, and fully meets the water purification requirements of daily chemical washing product production formulation and process.
Membrane Thickness
This food-grade PP filter cartridge adopts a gradient thickness filtration layer design specially adapted to the large-flow, continuous production characteristics of daily chemical washing product production water and the demand for high dirt-holding capacity, with an effective functional filtration layer thickness of 4-9 mm—a balanced design of structural stability, dirt-holding capacity and low flow resistance. The total outer diameter thickness of the cartridge (including high-strength food-grade PP inner core and gradient filtration layer) is a standard 28-30 mm, fully compatible with the installation size of all types of filter housings in daily chemical production water purification systems. The filtration layer is composed of a loose outer layer (2-4 mm) with large pore size for the primary interception of large particulate impurities such as sediment and rust particles, and resistance to the scouring of production water flow; a medium-density middle layer (1-2 mm) for the secondary interception of medium-sized particulates and colloidal aggregates, increasing the dirt-holding capacity of the cartridge; and a dense inner layer (1-3 mm) for the fine interception of small fine particulates and micro-colloids, ensuring the filtration precision corresponding to different models. The whole filtration layer is formed by high-precision winding and hot-melt bonding, with uniform thickness distribution and excellent structural stability, avoiding local excessive pressure and filtration layer damage caused by the large-flow scouring of production water, and the gradient thickness design realizes the balance of high flux, high precision and high dirt-holding capacity, adapting to the long-term continuous water purification demand of daily chemical washing product production lines.
Replacement Cycle
The replacement cycle of this food-grade PP filter cartridge is designed according to the impurity content, turbidity and daily water consumption of production water for daily chemical washing products, with a recommended normal replacement cycle of 3-8 weeks for the production water purification link—flexibly adjustable according to the actual production scale and water quality of daily chemical plants. For small and medium-scale production lines with low-turbidity production water (purified water/softened water, turbidity ≤5 NTU) and small daily water consumption, the replacement cycle can be appropriately extended to 6-8 weeks (especially for 30/40/50 μm medium-precision models); for large-scale industrial production lines with medium-turbidity production water (tap water after pretreatment, turbidity 5-15 NTU) and large daily water consumption, the replacement cycle is 4-6 weeks; for bulk production lines with slightly higher turbidity production water (raw tap water, turbidity >15 NTU) and ultra-large daily water consumption, the replacement cycle is still maintained at 3-4 weeks for all precision models. The cartridge only needs to be replaced immediately when the terminal pressure drop exceeds 0.07MPa, the filtration flux drops by more than 30% of the initial value and cannot be recovered after backwashing, or the finished washing products appear abnormal turbidity or particulate precipitates caused by water quality; regular replacement is not required within the recommended cycle, and the backwashable design further extends the actual service life, greatly reducing the replacement frequency and production downtime of the production water purification system.
Features
- Food-grade high-purity raw materials: The whole cartridge is made of FDA/EU REACH certified food-grade PP fiber with no heavy metals, phthalates, plasticizers or leachable harmful substances, complying with food contact material safety standards and ensuring the safety of daily chemical washing product production water.
- Adhesive-free hot-melt integral sealing: Advanced one-piece hot-melt bonding process without any adhesives, binders or sealants, eliminating dead corners for microbial breeding and the risk of chemical additive leaching into production water, ensuring the purity of production water and the compliance of washing product production.
- Gradient porous filtration structure: The outer loose, middle medium and inner dense gradient porous structure realizes multi-stage interception of impurities of different sizes in production water, maximizes the dirt-holding capacity, and avoids the rapid blockage of the filtration layer caused by single-pore size design.
- Ultra-high flux & ultra-low initial pressure drop: Optimized low-resistance filtration channel and high-fluidity PP fiber design ensure ultra-high filtration flux and ultra-low initial pressure drop, adapting to the large-flow production water demand of daily chemical washing product plants and reducing the energy consumption of water supply systems.
- Excellent chemical compatibility with washing product production water: Resistant to residual chlorine, inorganic salts, weak acids, weak alkalis and trace surfactants in daily chemical production water, maintaining stable physical and chemical properties without material dissolution or structural damage, adapting to all types of production water for washing products.
- High mechanical stability & flow scouring resistance: The integral hot-melt structure has excellent compressive strength (resistant to 0-0.4MPa operating pressure), no deformation or fiber shedding under the scouring of large-flow production water, and can work stably in the temperature range of 0-60℃, adapting to the harsh industrial production environment.
- Backwashable & reusable: The food-grade PP fiber filtration layer is easy to carry out physical backwashing with clean water or compressed air, and the cleaned cartridge can be reused for a short time, further reducing the production and operation cost of daily chemical plants.
- Standard industrial specification & universal installation: Standard 28-30 mm outer diameter and mainstream 10/20/40-inch length specifications, perfectly matched with all types of filter housings in daily chemical production water systems, no additional modification of existing equipment, quick installation and replacement, reducing production downtime.
- Eco-friendly & recyclable: The monolithic food-grade PP material structure has no mixed materials, and the discarded cartridges can be recycled and reused in accordance with plastic waste treatment standards, meeting the green and low-carbon production requirements of the modern daily chemical industry.
- Stable performance & batch consistency: The standardized production process and strict quality inspection ensure the stable filtration performance of the cartridge and high batch consistency, avoiding water quality fluctuations caused by filter cartridge performance differences and ensuring the uniform quality of finished washing products.
Application Fields
This food-grade PP filter cartridge is specially developed for the production water purification of daily chemical washing products, and is widely applied to the water purification link of various daily chemical washing product production lines, covering all core categories of daily chemical washing products with large water consumption: production water purification for laundry care products (laundry detergent, fabric softener, laundry powder, stain remover); production water purification for kitchen cleaning products (dish soap, fruit and vegetable cleaner, kitchen heavy oil cleaner); production water purification for personal care washing products (shampoo, conditioner, shower gel, body wash, hand sanitizer); production water purification for household cleaning products (glass cleaner, floor cleaner, multi-purpose cleaner, toilet cleaner); production water purification for mild washing products (baby laundry detergent, baby body wash, sensitive skin shower gel); and production water purification for bulk industrial cleaning agents. In addition, the product can also be used for the water purification of production lines of daily chemical personal care products with washing functions such as facial cleanser and make-up remover, complying with food-grade safety standards and daily chemical production quality specifications in all application scenarios, and is an indispensable core water purification component for the production of high-quality, safe and compliant daily chemical washing products.
Conclusion
In summary, this food-grade PP filter cartridge is a high-performance professional water purification solution custom-tailored for the production water of daily chemical washing products, with the core competitive advantages of food-grade safety, ultra-high flux, ultra-low pressure drop, high dirt-holding capacity and universal applicability—solving the industry pain points of daily chemical washing product production such as large-flow production water demand, strict water quality safety requirements and high production efficiency pursuit. Based on food-grade high-purity PP raw materials and an adhesive-free hot-melt integral structure, the cartridge efficiently removes all insoluble particulate impurities, colloids and rust particles in production water on the premise of not affecting the chemical properties and dissolved components of water, ensuring the safety, purity and clarity of production water for daily chemical washing products, avoiding the generation of precipitates, turbidity or particulate defects in finished washing products, and preventing particulate impurities from clogging production equipment such as emulsifiers, mixers and filling nozzles. The ultra-high flux and ultra-low initial pressure drop design perfectly adapt to the large-flow, continuous industrial production characteristics of daily chemical washing products, reducing the energy consumption of production water supply systems and improving production efficiency; the high dirt-holding capacity and slow pressure drop rise rate extend the cartridge’s service life and reduce replacement frequency, lowering the production and operation cost of daily chemical plants. The backwashable, reusable and universal installation design further improves the cost performance and practicality of the cartridge, and the full compliance with food-grade safety standards and daily chemical production specifications ensures that the production water purification link meets the highest safety requirements of the industry. As a professional food-grade water purification component for daily chemical washing product production, it not only provides a reliable water quality guarantee for the formulation and production of washing products but also lays a solid foundation for the stable and uniform quality of finished products. It is the first choice for production water purification in laundry care, kitchen cleaning, personal care and household cleaning product production lines of daily chemical enterprises of all scales, and an essential supporting component for the modern, large-scale and standardized production of daily chemical washing products.
Related products
- 10/20/40-inch Food-Grade PP Melt Blown Filter Cartridges: High-precision water purification cartridges with 1-5 μm filtration precision, used for the fine purification of production water for high-end mild washing products such as baby care and sensitive skin washing products.
- Food-Grade Activated Carbon PP Filter Cartridges: Used in conjunction with this PP filter cartridge, adsorbing residual chlorine, peculiar smell, organic matter and pigments in daily chemical production water, further improving the sensory quality of production water and avoiding odor in finished washing products.
- Large-Flow Multi-core Stainless Steel Filter Housings: Special matching filter housings for daily chemical production water systems, compatible with this food-grade PP filter cartridge, with large-flow design and food-grade internal treatment, suitable for industrial-scale production water purification.
- Water Softener Resin Cartridges: Used in the pre-treatment link of daily chemical production water, softening hard water to reduce water hardness, avoiding the generation of scale in production equipment and improving the emulsification effect of washing products.
- Production Water Turbidity & Residual Chlorine Monitors: Matching online detection equipment for daily chemical production water systems, real-time monitoring of water quality indices to guide the replacement cycle of this filter cartridge and ensure stable water purification efficiency.
- Food-Grade Silicone/EPDM Sealing Gaskets: Special matching accessories for filter cartridges and filter housings, complying with food contact material safety standards, with excellent sealing performance and chemical compatibility, avoiding production water leakage and secondary pollution.
- Automatic Backwash Systems for Filter Housings: Matching cleaning equipment for daily chemical production water purification systems, realizing regular automatic backwashing of this filter cartridge and further extending its actual service life.
- Food-Grade Ultrafiltration (UF) Membrane Modules: Deep water purification components for high-end daily chemical washing product production, used after this PP filter cartridge, removing macromolecular colloids and microorganisms in production water for higher water quality requirements.
