Deep Filtration PP Filter Cartridge: Filter Cartridge for Hygiene Product Manufacturing and Processing Water
Product Introduction
This deep filtration PP filter cartridge is a professional high-efficiency filtration component custom-engineered for the purification of manufacturing and processing water in the hygiene product industry, manufactured with high-purity food-grade polypropylene (PP) raw materials and advanced multi-layer deep winding technology, in full compliance with FDA 21 CFR 177.1520, EU REACH and domestic daily chemical hygiene product production safety standards. Adopting an adhesive-free integral structural design, the cartridge forms a three-dimensional porous deep filtration layer through the precise winding of different fineness PP fiber yarns, eliminating secondary pollution risks from chemical additives, binders or leachable substances. Specifically designed for the water quality requirements of hygiene product production—including low particulate content, no colloidal impurities and stable water quality—it efficiently achieves deep interception and removal of suspended solids, fine particulates, colloidal substances, rust and sediment from hygiene product manufacturing and processing water through the combined action of surface filtration and depth filtration. The product is available in mainstream industrial specifications, perfectly matched with standard filter housings in the hygiene product production industry, realizing continuous, stable and high-efficiency deep filtration for processing water, and laying a solid foundation for the production of high-quality, hygienic and safe disposable hygiene products, personal care hygiene products and household hygiene products.
Filtration Precision
Targeting the diverse deep filtration needs of processing water for different types of hygiene products and different production links, this deep filtration PP filter cartridge provides a full range of graded precise filtration precision options, with nominal filtration ratings ranging from 5 μm to 100 μm. The 5 μm, 10 μm and 20 μm high-precision models are suitable for the fine deep filtration of processing water for high-end hygiene products such as baby diapers, feminine care products and medical disposable hygiene products, achieving efficient interception of fine particulates and colloids to ensure the ultra-high purity of processing water; the 30 μm, 50 μm and 80 μm medium-precision models are applied to the standard deep filtration of processing water for adult diapers, wet wipes and household cleaning hygiene products; the 100 μm coarse-precision model is used for the pre-deep filtration of raw processing water with high particulate content, effectively removing large and medium-sized impurities and reducing the filtration load of subsequent fine filtration links. All precision models adopt the deep filtration principle to realize multi-stage interception of impurities, maintaining stable and reliable filtration efficiency under the recommended operating conditions, and fully meeting the graded filtration quality requirements of the hygiene product industry for manufacturing and processing water.
Flux
The flux performance of this deep filtration PP filter cartridge is optimized for the large-flow industrial production characteristics of the hygiene product industry and the physical properties of manufacturing and processing water, with a pure water flux of 90-150 L/min·m² at 25℃ and 0.1MPa operating pressure. For the standard 10-inch cartridge, the pure water flux reaches 12-20 L/min; the 20-inch cartridge is 24-40 L/min, and the 40-inch large-specification cartridge can reach 48-80 L/min, which fully meets the large-volume continuous filtration demand of hygiene product production lines with high water consumption. For normal temperature tap water and purified water used as hygiene product processing water, the actual working flux is basically consistent with the pure water flux, and the flux only shows a mild and linear decrease with the reduction of filtration precision, without sudden attenuation in the recommended operating pressure range. The large effective deep filtration area design ensures the high flux of the cartridge, effectively improving the overall filtration efficiency of hygiene product production line processing water and adapting to the 24-hour continuous production characteristics of the industry.
Salt Rejection Rate
As a dedicated deep particulate filtration cartridge for hygiene product manufacturing and processing water, the product is designed for the interception and removal of insoluble solid impurities, colloidal substances and suspended solids in water, and does not have a desalination or ion removal function, with a salt rejection rate close to 0%. It will not intercept soluble inorganic salts, small molecular weight minerals and other soluble components in processing water, and has no impact on the pH value, conductivity and other chemical properties of processing water. The desalination and deionization functions for processing water (if required by production) are undertaken by subsequent reverse osmosis, ion exchange and other water purification units, and the core role of this deep filtration PP filter cartridge is to remove particulate impurities in advance, reduce the pollution load of subsequent desalination and purification equipment, and ensure their stable operation and processing efficiency. The abandonment of desalination design makes the cartridge focus on deep particulate filtration, with higher dirt-holding capacity and flux performance, which is more suitable for the large-flow pre-filtration and deep filtration needs of hygiene product processing water.
Pressure Drop
The product adopts an optimized low-resistance multi-layer deep winding structure and large-pore gradient filtration channel design, with an initial pressure drop of ≤0.012MPa at 25℃ and rated pure water flux for all filtration precision specifications. This low initial pressure drop effectively reduces the energy consumption of the processing water delivery pump in large-scale hygiene product production lines, lowers the production operation cost, and avoids the damage of excessive pressure to the water supply pipeline and filtration equipment. With the progress of deep filtration, the pressure drop of the cartridge gradually increases as the three-dimensional deep filtration layer intercepts more impurities; the recommended terminal operating pressure drop is ≤0.07MPa. When the pressure drop exceeds this value, the filtration flux will decrease significantly, and the cartridge needs to be cleaned or replaced in time to avoid excessive system pressure that may cause the re-leakage of intercepted impurities and affect the purity of processing water, ensuring the smooth progress of hygiene product production and processing water filtration.
Molecular Weight Cutoff (MWCO)
Combined with the deep filtration precision, multi-layer winding density and the impurity characteristics of hygiene product manufacturing and processing water, the optimized Molecular Weight Cutoff (MWCO) range is 150,000 Da to 600,000 Da for this deep filtration PP filter cartridge. This wide MWCO range is precisely matched with the deep filtration needs of processing water: it can effectively intercept macromolecular colloids, macromolecular organic particulate impurities, clay colloid aggregates and other large molecular weight insoluble impurities in processing water, while allowing small molecular weight water molecules, soluble inorganic salts, minerals and other beneficial soluble components to pass through smoothly. The accurate MWCO setting realizes the selective interception of impurities in processing water, ensures the efficient removal of harmful particulate and colloidal impurities, and does not affect the normal chemical composition of processing water, meeting the different water quality requirements of various hygiene product production processes for processing water.
Membrane Thickness
This deep filtration PP filter cartridge adopts a gradient thickness multi-layer deep filtration layer design adapted to the large-flow filtration of hygiene product processing water, with an effective functional deep filtration layer thickness of 5-10 mm, and the total outer diameter thickness of the cartridge (including high-strength PP inner core and gradient filtration layer) is a standard 28-30 mm, fully compatible with the installation size of standard filter housings in the hygiene product production industry. The filtration layer is composed of a loose outer layer (2-4 mm) with large pore size for coarse interception of large particulate impurities, a medium-density middle layer (2-3 mm) for interception of medium-sized particulates and colloids, and a dense inner layer (1-3 mm) for fine interception of small fine particulates, forming a multi-layer gradient thickness deep filtration structure. This structural design not only maximizes the dirt-holding capacity of the cartridge but also ensures the filtration precision and flux performance; the uniform thickness distribution of the whole filtration layer avoids local excessive pressure and filtration layer damage caused by large-flow water scouring, and adapts to the long-term continuous filtration demand of hygiene product processing water.
Replacement Cycle
The replacement cycle of this deep filtration PP filter cartridge is determined by the initial impurity content of hygiene product manufacturing and processing water, daily filtration volume, operating flux and system pressure drop, with a recommended normal replacement cycle of 2-6 weeks for the deep filtration stage of processing water in hygiene product production enterprises. For processing water with low turbidity (≤10 NTU) such as purified water and tap water after pre-treatment, and intermittent production conditions, the replacement cycle can be appropriately extended to 4-6 weeks (100 μm/80 μm models) and 3-4 weeks (5 μm/10 μm models); for raw processing water with high turbidity (>10 NTU) and 24-hour continuous large-flow production lines, the replacement cycle is shortened to 2-3 weeks for all precision models. In addition, the cartridge must be replaced immediately if any of the following conditions occur: 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 filtered processing water has visible particulates and turbidity, to ensure the stable purity of hygiene product manufacturing and processing water and the normal progress of production.
Features
- High-purity food-grade PP raw material: The whole cartridge is made of FDA/EU REACH certified food-grade high-purity polypropylene, free of heavy metals, plasticizers, phthalates and other harmful substances, meeting the strict hygiene and safety requirements of hygiene product production for processing water.
- Adhesive-free integral deep winding structure: The advanced multi-layer deep winding process without any adhesives or binders eliminates the risk of chemical additive leaching into processing water, ensures the purity of processing water, and avoids adverse effects on the quality and hygiene of hygiene products.
- Gradient three-dimensional deep filtration layer: The outer coarse, middle medium and inner fine gradient porous structure realizes multi-stage deep interception of impurities of different particle sizes, greatly improves the dirt-holding capacity and filtration efficiency, and reduces the replacement frequency.
- Excellent chemical compatibility: Resistant to most weak acids, weak alkalis, inorganic salts and polar solvents in daily chemical production, adaptable to the deep filtration of various types of processing water for hygiene product production, including tap water, purified water and softened water.
- Large flux & low pressure drop: The optimized multi-layer deep filtration channel design ensures high filtration flux and ultra-low initial pressure drop, adapting to the large-flow continuous production characteristics of the hygiene product industry and reducing energy consumption.
- High mechanical stability: The integral PP structure is reinforced with high-strength winding, with excellent compressive and impact resistance, no deformation, fiber shedding or structure damage under the recommended operating pressure (0-0.4MPa), and can adapt to the harsh production environment of industrial lines.
- Standard industrial specification design: The standard 28-30 mm outer diameter and mainstream 10/20/30/40-inch length specifications are perfectly matched with standard filter housings in the hygiene product industry, realizing quick installation, disassembly and replacement, and reducing production line downtime.
- Washable & reusable: The smooth surface and gradient filtration structure of the PP fiber layer make the cartridge easy to carry out physical cleaning such as backwashing and forward flushing, and the cleaned cartridge can be reused for a short time, further reducing the production operation cost.
- Environmentally friendly & recyclable: The monolithic 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 environmental protection production requirements of the modern hygiene product industry.
Application Fields
This deep filtration PP filter cartridge is specially developed for the hygiene product manufacturing industry, and is widely applied to the pre-filtration and deep filtration stage of manufacturing and processing water for various hygiene products, covering all core production links of the hygiene product industry with high water consumption: deep filtration of processing water for baby hygiene products (diapers, pull-ups, baby wet wipes, baby care pads); fine deep filtration of processing water for feminine care hygiene products (sanitary napkins, panty liners, menstrual cups); deep filtration of processing water for medical disposable hygiene products (surgical gauze, medical masks, disposable medical pads); standard deep filtration of processing water for adult incontinence products (adult diapers, adult pull-ups, nursing pads); deep filtration of processing water for household hygiene products (household wet wipes, cleaning cloths, disposable toilet pads); filtration of production water for personal care hygiene products (wet toilet paper, hand sanitizer packaging water); pre-filtration of processing water for hygiene product raw material mixing and molding; and filtration of cleaning water for hygiene product production equipment, pipelines and molds. In addition, the product can also be used for the large-flow deep filtration of processing water in the daily chemical and light industry fields related to hygiene products, complying with the industry production and hygiene safety standards in all application scenarios, and is an indispensable core filtration component for the large-scale production of high-quality and safe hygiene products.
Conclusion
In summary, this deep filtration PP filter cartridge is a high-performance dedicated filtration product tailored for the manufacturing and processing water of the hygiene product industry, with the core advantages of food-grade material safety, graded filtration precision options, large flux, low pressure drop, strong dirt-holding capacity and excellent chemical compatibility. Based on the adhesive-free integral PP structure and multi-layer gradient three-dimensional deep filtration design, the product realizes efficient and deep interception of suspended solids, fine particulates, colloidal substances and other insoluble impurities in hygiene product processing water through the combined action of surface filtration and depth filtration, significantly improving the purity and clarity of processing water, and effectively reducing the pollution load of subsequent water purification equipment (if any). The large flux and low pressure drop design perfectly adapts to the large-flow, high-water-consumption and 24-hour continuous production characteristics of the hygiene product industry, greatly improving the overall filtration efficiency of processing water and reducing the production energy consumption and operation cost of enterprises. The standard industrial specification design makes it fully compatible with the mainstream filter equipment in the hygiene product industry, and the washable and reusable characteristics and flexible replacement cycle further reduce the production cost of enterprises. As a professional filtration component complying with FDA and EU REACH standards, it effectively solves the pain points of large-flow deep particulate filtration of processing water in the hygiene product production industry, and is a reliable, cost-effective and high-efficiency filtration solution for hygiene product manufacturing enterprises of all scales. It provides strong technical support for the production of high-quality, hygienic and safe hygiene products, and is the first choice for the deep filtration of manufacturing and processing water in the hygiene product industry.
Related products
- 10/20/40-inch PP Melt Blown Filter Cartridges: Same series PP filter cartridges with high precision uniformity, suitable for the fine filtration of processing water for high-end medical and baby hygiene products, with better interception effect on fine particulates.
- Activated Carbon PP Filter Cartridges: Used in conjunction with deep filtration PP filter cartridges, adsorbing residual chlorine, organic matter, peculiar smell and color in hygiene product processing water, further improving the water quality and sensory properties of processing water.
- Large-flow Multi-core Stainless Steel Filter Housings: Special matching filter housings for deep filtration PP filter cartridges, with 3/5/7/10 core models available, suitable for the large-flow continuous filtration of processing water in large-scale hygiene product production enterprises.
