PP Wound Filter Cartridge 82, 20-inch Industrial Filter Cartridge for Circulating Filtration of Textile Sizing and Printing Auxiliaries

Product Introduction

This 20-inch PP Wound Filter Cartridge 82 is a professional industrial filtration component custom-engineered for the circulating filtration of textile sizing and printing auxiliaries, manufactured in strict compliance with industrial filtration quality standards and textile production process specifications for auxiliary materials. Crafted from high-strength, wear-resistant polypropylene (PP) fiber and a reinforced porous PP inner core, the cartridge features a standardized 20-inch length and optimized 82-series structural design, adopting an advanced high-density spiral winding process combined with an adhesive-free hot-melt integral sealing structure. It is specially optimized for the characteristics of textile sizing and printing auxiliaries—including high viscosity, easy agglomeration, and the presence of fine solid impurities—and the demands of long-term circulating filtration such as repeated liquid scouring and continuous impurity interception. The cartridge efficiently and continuously removes insoluble impurities such as fine solid particles, fiber residues, colloid aggregates, and raw material precipitates from various textile sizing agents (starch-based, PVA-based, acrylic-based) and printing auxiliaries (binders, thickeners, color paste dispersants) during circulating filtration, without leaching harmful substances or altering the chemical composition, viscosity, and application performance of the auxiliaries. With high dirt-holding capacity, excellent anti-scouring performance and stable filtration efficiency, this product is perfectly matched with the circulating filtration systems of textile sizing and printing production lines, realizing long-term, efficient and stable circulating filtration, reducing the frequency of filter cartridge replacement, and laying a solid foundation for improving the quality of textile sizing and printing, reducing defective products and ensuring the continuous operation of textile production lines.

Filtration Precision

Targeting the differentiated circulating filtration requirements of different types of textile sizing and printing auxiliaries and the quality requirements of textile products, this 20-inch PP Wound Filter Cartridge 82 provides a full range of stable and precise industrial 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 circulating filtration of high-grade textile printing auxiliaries such as digital printing color pastes, fine fabric sizing agents and high-count yarn sizing materials, achieving efficient interception of micro-fine impurities to ensure the fineness, uniformity and adhesion of auxiliaries, and avoid printing color spots, sizing unevenness and yarn breakage; the 30 μm, 50 μm and 80 μm medium-precision models are applied to the circulating filtration of conventional textile sizing agents (cotton, linen, chemical fiber sizing) and rotary screen printing auxiliaries, effectively removing medium-sized particulate impurities and fiber residues to balance filtration precision, production efficiency and filter cartridge service life; the 100 μm coarse-precision model is designed for the pre-circulating filtration of crude textile sizing and printing auxiliaries with high impurity content, removing large solid precipitates and massive fiber clumps to protect subsequent production equipment such as sizing machines and printing machines, and reduce the filtration load of high-precision filter cartridge models. All precision models maintain consistent and non-attenuating interception efficiency during long-term circulating filtration of textile auxiliaries, with zero particle penetration and excellent resistance to viscous liquid scouring, fully meeting the stringent circulating filtration quality requirements of the textile industry for sizing and printing auxiliaries.

Flux

The flux performance of this 20-inch PP Wound Filter Cartridge 82 is fully optimized for the 20-inch standardized industrial design, the viscosity characteristics of textile sizing and printing auxiliaries and the large-flow circulating filtration demand of textile production lines, with a pure water flux of 80-160 L/min·m² at 25℃ and 0.1MPa operating pressure—a balanced design of high flux and stable dirt-holding capacity adapted to industrial circulating filtration. As a standardized 20-inch industrial filter cartridge, its initial pure water flux reaches 24-40 L/min, which perfectly matches the circulating flow demand of single/multi-core filtration housings in textile sizing and printing auxiliary circulating filtration systems, and is suitable for small, medium and large-scale textile production lines from small batch processing to mass industrial production. For low-viscosity textile auxiliaries (e.g., low-concentration starch sizing, water-based printing binders), the actual working flux is basically consistent with the pure water flux, and the flux attenuation rate is extremely low during long-term use; for medium-viscosity auxiliaries (e.g., PVA sizing agents, high-concentration color pastes), the actual initial flux is reduced by 25%-40% under the same working conditions, and the optimized high dirt-holding capacity design delays flux attenuation, avoiding frequent flux reduction caused by rapid impurity accumulation. The low-resistance gradient winding channel design of the 82-series structure ensures that the flux does not decrease sharply with the reduction of filtration precision, meeting the continuous large-flow circulating filtration demand of textile sizing and printing production lines without causing pressure loss or auxiliary circulation stagnation in the filtration system, and ensuring the normal production rhythm of textile processing.

Salt Rejection Rate

As a dedicated 20-inch industrial PP wound filter cartridge for the circulating filtration of textile sizing and printing auxiliaries, the product is designed only for the physical interception of insoluble solid particulate, colloidal and fiber impurities in auxiliaries, 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, water-soluble polymers, dispersants, colorants and other functional components in textile sizing and printing auxiliaries nor affects the pH value, conductivity, solid content and viscosity of the auxiliaries, and has no impact on the film-forming property, adhesion, color fastness and other key application performances of sizing agents and printing auxiliaries. The ion adjustment and component control of textile auxiliaries are completed in the raw material preparation and formulation process; the core function of this filter cartridge is to remove insoluble impurities in auxiliaries during circulating filtration, ensure the cleanliness of auxiliaries, avoid the blockage of sizing nozzles and printing mesh holes caused by impurities, and prevent the generation of textile surface defects such as color spots, slubs and uneven sizing. The abandonment of desalination design makes the cartridge adopt a high-flux, low-resistance winding structure focused on impurity interception, which is the key to realizing its efficient circulating filtration performance adapted to the characteristics of textile sizing and printing auxiliaries.

Pressure Drop

This 20-inch PP Wound Filter Cartridge 82 adopts an optimized 82-series ultra-low resistance gradient winding structure and high-fluidity, wear-resistant PP fiber material, with an initial pressure drop of ≤0.010MPa at 25℃ and rated pure water flux for all filtration precision specifications—far lower than the industry standard for textile industrial filter cartridges. This ultra-low initial pressure drop effectively reduces the energy consumption of the circulating pump in textile sizing and printing auxiliary filtration systems, avoids excessive pressure loss in the circulating filtration link, and ensures the normal circulation pressure of auxiliaries, preventing the reduction of auxiliary coating uniformity caused by insufficient circulation pressure in sizing and printing processes. During long-term circulating filtration, 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 ≤0.08MPa for all precision models. The slow pressure drop rise rate is a core advantage of the 82-series structural design, which allows for longer continuous use time, reduces the frequency of shutdown and filter cartridge replacement operations for the circulating filtration system, and ensures the uninterrupted operation of textile sizing and printing production lines. Even for textile auxiliaries with slight impurity content fluctuations, the pressure drop rise rate remains stable, avoiding sudden pressure changes in the auxiliary circulation system caused by impurity accumulation, and ensuring the stable application of auxiliaries in textile processing.

Molecular Weight Cutoff (MWCO)

Combined with the filtration precision, 82-series high-density winding density, long-term circulating filtration characteristics and the impurity molecular characteristics of textile sizing and printing auxiliaries, the optimized Molecular Weight Cutoff (MWCO) range is 80,000 Da to 450,000 Da for this 20-inch PP Wound Filter Cartridge 82, specially tailored for the interception of macromolecular colloidal and particulate aggregate impurities in textile auxiliaries. This MWCO range is precisely designed for the physical interception of insoluble impurities in sizing and printing auxiliaries, and can effectively capture macromolecular impurities such as fiber polymer aggregates, colloid thickener agglomerates, raw material precipitate clusters and insoluble particulate aggregates (MW > 80,000 Da) in various textile auxiliaries during circulating filtration, while allowing all small and medium molecular weight functional components (water-soluble polymers, dispersants, colorants, inorganic salt additives) in the auxiliaries to pass through smoothly and completely. For different filtration precision models, the MWCO range is adaptively and precisely adjusted based on the 82-series structural design: the 5/10/20 μm high-precision models have a MWCO of 80,000 Da-200,000 Da for intercepting ultra-fine macromolecular colloidal impurities and micro-particulate aggregates in high-grade printing and sizing auxiliaries; the 80/100 μm coarse-precision models have a MWCO of 300,000 Da-450,000 Da for capturing large particulate aggregates and fiber clumps in crude auxiliaries. The stable MWCO setting without deviation during long-term circulating filtration achieves the dual goal of long-term efficient impurity removal and complete retention of auxiliary functional components, ensuring that the filtered sizing and printing auxiliaries fully meet the application and quality requirements of textile production.

Membrane Thickness

This 20-inch PP Wound Filter Cartridge 82 adopts a reinforced gradient thickness filtration layer design specially adapted to the 82-series structural characteristics, the medium viscosity of textile sizing and printing auxiliaries and the long-term circulating filtration anti-scouring demand, with an effective functional filtration layer thickness of 6-13 mm—significantly thicker than conventional wound filter cartridges to enhance dirt-holding capacity and structural stability. The cartridge adopts a standardized industrial outer diameter design matching the 20-inch length, fully compatible with the installation size of standard industrial multi-core filter housings in textile production lines, without the need for additional modification of existing filtration equipment, complying with the standardized production requirements of the textile industry. The filtration layer is composed of a loose and wear-resistant outer layer (3-5 mm) with optimized 82-series pore size for the primary interception of large particulate impurities and fiber clumps in textile auxiliaries, and resistance to the repeated scouring of circulating viscous auxiliaries; a medium-density middle layer (2-4 mm) for the secondary interception of medium-sized particulates and colloid aggregates, maximizing the dirt-holding capacity of the cartridge and delaying flux attenuation and pressure drop rise; and a dense and high-precision inner layer (1-4 mm) for the ultra-fine interception of micro-particulates and colloidal impurities, ensuring the filtration precision corresponding to different models. The whole filtration layer is formed by 82-series high-density spiral winding and one-piece hot-melt bonding, with uniform thickness distribution and excellent structural stability, avoiding local excessive pressure and filtration layer damage caused by the repeated scouring of circulating viscous auxiliaries, and the reinforced thickness design significantly extends the service life of the cartridge in the circulating filtration of textile sizing and printing auxiliaries.

Replacement Cycle

The replacement cycle of this 20-inch PP Wound Filter Cartridge 82 is scientifically designed according to the type, viscosity, impurity content and circulating flow rate of textile sizing and printing auxiliaries, with a recommended normal replacement cycle of 3-9 weeks for the circulating filtration link—flexibly adjustable according to the actual production conditions of textile lines. For the circulating filtration of low-impurity, low-viscosity high-grade textile auxiliaries (e.g., digital printing color pastes, fine yarn sizing agents) and small circulating flow rate conditions, the replacement cycle can be appropriately extended to 7-9 weeks (especially for 30/50 μm medium-precision models); for the circulating filtration of medium-impurity, medium-viscosity conventional auxiliaries (e.g., cotton fabric PVA sizing, rotary screen printing binders) and medium circulating flow rate conditions, the replacement cycle is 5-7 weeks; for the circulating filtration of high-impurity, medium-viscosity crude auxiliaries (e.g., bulk starch sizing, low-grade printing color pastes) and large circulating flow rate conditions of mass production lines, the replacement cycle is still maintained at 3-5 weeks for all precision models. The cartridge only needs to be replaced immediately when the terminal pressure drop exceeds 0.08MPa, the filtration flux drops by more than 30% of the initial value and cannot be recovered after backwashing, or textile products appear quality defects such as printing color spots, sizing unevenness and yarn breakage caused by auxiliary impurities; regular replacement is not required within the recommended cycle, which greatly reduces the replacement frequency of filter cartridges and the production downtime of textile sizing and printing lines, and effectively controls the production cost of textile enterprises.

Features

82-series 20-inch standardized industrial design: Adopts a customized 82-series structural design and standardized 20-inch length, matching the installation size of standard industrial filter housings in textile production lines, with strong universality and no need for additional equipment modification, complying with textile industrial production specifications.
High-strength wear-resistant PP raw materials: The whole cartridge is made of high-strength, anti-scouring polypropylene fiber and reinforced PP inner core, with excellent wear resistance and structural stability, adapting to the repeated scouring of circulating viscous textile sizing and printing auxiliaries, no fiber shedding and no structural damage during long-term use.
Adhesive-free hot-melt integral sealing: Advanced one-piece hot-melt bonding process without any adhesives, binders or sealants, eliminating the risk of chemical additive leaching into textile auxiliaries and secondary pollution, ensuring the purity of sizing and printing auxiliaries and the quality of textile products.
Gradient porous winding structure: The outer loose, middle medium and inner dense gradient porous winding structure realizes multi-stage interception of impurities of different sizes in textile auxiliaries, maximizes the dirt-holding capacity, avoids rapid filter layer blockage and ensures stable filtration efficiency for a long time.
Ultra-low initial pressure drop & stable flux: Optimized 82-series low-resistance filtration channel and high-fluidity PP fiber design ensure ultra-low initial pressure drop and low flux attenuation rate during long-term circulating filtration, reducing the energy consumption of circulating pumps and ensuring the stable circulation of textile auxiliaries.
Superior chemical compatibility with textile auxiliaries: Resistant to water-soluble polymers, inorganic salts, weak acids, weak alkalis, dispersants, colorants and other components in various textile sizing and printing auxiliaries, maintaining stable physical and chemical properties without material dissolution or structural damage, adapting to all types of textile sizing and printing auxiliaries.
High mechanical stability & pressure resistance: The integral reinforced 82-series structure has excellent compressive strength (resistant to 0-0.5MPa operating pressure), no deformation under the high pressure of circulating pumps, and can work stably in the temperature range of 0-65℃, adapting to the harsh industrial production environment of textile mills.
Backwashable & reusable: The wear-resistant 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 filtration cost and production operation cost of textile enterprises.
Eco-friendly & recyclable: The monolithic pure 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 textile industry.
Stable batch consistency & easy storage: The standardized industrial production process and strict quality inspection ensure the stable filtration performance of each 82-series 20-inch cartridge and high batch consistency, avoiding filtration efficiency fluctuations caused by filter cartridge differences; the sealed packaging design has good moisture resistance and is easy to store in textile mill workshops.

Application Fields

This 20-inch PP Wound Filter Cartridge 82 is a dedicated industrial filter cartridge for the circulating filtration of textile sizing and printing auxiliaries, and is widely applied to the circulating filtration link of various textile sizing and printing production lines in the textile and printing and dyeing industry, covering all core textile processing links that require clean auxiliaries: circulating filtration of sizing agents for natural fiber spinning (cotton, linen, silk, wool) such as starch-based, PVA-based and acrylic-based sizing materials; circulating filtration of chemical fiber spinning (polyester, nylon, spandex) sizing agents and functional finishing auxiliaries; circulating filtration of water-based printing auxiliaries for textile printing (screen printing, rotary screen printing, digital printing) such as color pastes, binders, thickeners and crosslinking agents; circulating filtration of sizing and printing auxiliaries for home textile fabric production (bedding, curtains, carpets); circulating filtration of auxiliaries for industrial textile processing (filter cloths, tarpaulins, textile belts); and pre-filtration of crude textile sizing and printing auxiliaries in auxiliary production plants. In addition, the product can also be used for the circulating filtration of medium-viscosity industrial auxiliaries in other light industry fields with similar filtration requirements, complying with industrial filtration quality standards in all application scenarios, and is an indispensable core industrial filtration component for improving the quality of textile sizing and printing and ensuring the continuous operation of textile production lines.

Conclusion

In summary, this 20-inch PP Wound Filter Cartridge 82 is a high-performance professional industrial filtration solution custom-tailored for the circulating filtration of textile sizing and printing auxiliaries, with the core competitive advantages of 82-series standardized structural design, high anti-scouring performance, ultra-low pressure drop, high dirt-holding capacity and strong compatibility—solving the industry pain points of textile auxiliary circulating filtration such as viscous liquid scouring, frequent filter cartridge replacement and unstable auxiliary cleanliness. Based on high-strength wear-resistant PP raw materials and an adhesive-free hot-melt integral structure, the cartridge efficiently and continuously removes all insoluble particulate, colloidal and fiber impurities in textile sizing and printing auxiliaries during long-term circulating filtration, on the premise of 100% retaining the functional components, chemical composition and application performance of the auxiliaries, ensuring the cleanliness and uniformity of sizing and printing auxiliaries, avoiding the blockage of sizing machines and printing equipment caused by impurities, and effectively reducing textile product defects such as printing color spots, sizing unevenness and yarn breakage. The 82-series 20-inch standardized industrial design realizes perfect matching with existing textile production filtration equipment, with strong universality and no need for additional modification; the ultra-low initial pressure drop and stable flux design reduce the energy consumption of auxiliary circulation systems and ensure the normal production rhythm of textile lines; the high dirt-holding capacity and slow pressure drop rise rate extend the service life of the filter cartridge, reduce the replacement frequency and production downtime, and effectively control the production cost of textile enterprises. The excellent chemical compatibility and mechanical stability adapt to the filtration of various types of textile sizing and printing auxiliaries and the harsh industrial production environment of textile mills; the backwashable and recyclable design further improves the cost performance and environmental protection of the product. As a dedicated industrial filter cartridge for the textile industry, it not only provides a reliable filtration guarantee for the cleanliness of textile sizing and printing auxiliaries but also lays a solid foundation for improving the quality of textile products and enhancing the market competitiveness of textile enterprises. It is the first choice for the circulating filtration of sizing and printing auxiliaries in cotton spinning, chemical fiber spinning, textile printing and dyeing, home textile production and other textile processing enterprises of all scales.

PP Wound Filter Cartridge 82. 20-inch Industrial Filter Cartridge for Textile Sizing and Printing Auxiliaries Circulating Filter Cartridge