PP Filler
Calcium PP Filler
Properties
Calcium carbonate filled PP at 80–82% CaCO₃ loading (MFI 25 ± 5), engineered to reduce material cost per kilogram while holding processability for high-speed tape, film, and fabric lines, and for injection/blow moulded articles. Compounded on twin-screw extruders in a highly automated plant, giving batch-to-batch consistency in loading and dispersion.
Availability
Natural, custom colours — 80–82% CaCO₃ loading, MFI 25 ± 5
Applications
Woven sacks, raffia tape, non-woven fabric, blown film, injection-moulded crates and buckets.
Nexxa Compounds is a leading manufacturer of Calcium PP Filler in India, supplying some of the largest manufacturers across India and internationally.
Calcium PP Filler for Non-Woven Fabric
India's Calcium PP Filler Built for Non-Woven Lines
Non-woven fabric production is one of the least forgiving applications a filler masterbatch can be asked to perform in. Spunbond and meltblown lines run continuously at high line speed, extruding and attenuating molten polypropylene into fine filaments that are laid into a web and bonded in a single pass — there is no downstream step to correct a filament that breaks, a fiber that runs too thick, or a fabric zone that comes out patchy because a batch of filler dispersed unevenly. Nexxa Compounds designed its calcium PP filler specifically around that reality. The compound runs at 80–82% CaCO₃ loading with an MFI of 25 ± 5, a combination tuned to displace resin cost aggressively while staying inside the melt-flow window spunbond and meltblown extrusion heads actually need. Getting there took fifteen years of iterative process and formulation work specific to this exact compound — not a generic PP filler grade adapted after the fact for non-woven duty — carried out by a dedicated in-house R&D team with production capacity set aside for this product line alone, so a non-woven customer's order is never queued behind a batch of talc-filled or barium-sulphate-filled material on a shared line. The compound is produced end-to-end in India, on twin-screw extruders inside a highly automated plant, and is positioned — in the business's own assessment, based on process capability and formulation consistency — to match and exceed the quality delivered by leading Vietnam-grade filler exporters, without the freight lead time, currency exposure, or minimum-order friction that comes with importing.
Hygiene Non-Woven
Diaper and sanitary-product non-woven fabric sits directly against skin, so both softness and visual/structural uniformity are non-negotiable quality gates for converters — a patch of fabric that feels harsh or shows a weak spot fails inspection regardless of how much it saved on resin cost. At 80–82% CaCO₃ loading, consistent dispersion is what keeps every meter of fabric feeling and performing the same as the meter before it, across production runs that can stretch for days. Hygiene-line customers also tend to run fine-denier spunbond and meltblown processes at very high speed to hit tight per-unit cost targets, which raises the stakes on melt-flow consistency: an MFI that drifts mid-batch changes fiber diameter and basis weight in ways that show up as inconsistent softness or coverage in the finished product. Nexxa's dedicated capacity and R&D oversight for this compound exist largely because of how unforgiving this specific segment is on consistency.
Geotextile & Agro-Textile
Geotextile fabric — used for soil stabilization, drainage layers, and erosion control — and agro-textile fabric — crop covers, mulch films, greenhouse shading — share a demand profile that's different from indoor converted products: the finished fabric has to survive months or years of outdoor UV exposure, moisture cycling, and, for geotextiles specifically, sustained mechanical load without failing at a weak point. A filler that disperses unevenly doesn't just create a cosmetic defect here; it creates a structurally weaker zone in fabric that may be doing load-bearing work under an embankment or a road base. These applications also tend to run at large volume and wide fabric width, so consistency has to hold not just batch-to-batch but across the full width and length of very large production runs. Nexxa formulates and tests specifically against that duty cycle rather than assuming general-purpose filler performance will carry over.
Medical & PPE
Non-woven fabric for surgical drapes, gowns, and mask layers is produced against tighter tolerances than general industrial or packaging non-woven, because in regulated medical and PPE production, a batch that drifts outside its specified basis weight or barrier characteristics is a compliance and quality-system problem, not a merely cosmetic one. Meltblown fabric in particular — used for the filtration layer in masks — depends on fine, even filament formation that is extremely sensitive to melt-flow stability; any variance in the filler's MFI shows up directly as a shift in fiber diameter and pore structure. Holding MFI at 25 ± 5 consistently, batch after batch, is what lets converters in this segment build a repeatable process around Nexxa's filler rather than re-validating their line settings every time a new lot arrives.
Packaging Non-Woven
Non-woven fabric used in bags, wraps, and general packaging competes primarily on cost-per-unit at very high production volume, which makes the 80–82% CaCO₃ loading the headline economic lever — every percentage point of filler that displaces virgin PP resin drops material cost directly to the bottom line on a high-volume line. The tension is that pushing loading and cost savings aggressively can't come at the expense of the minimum tensile strength and processability the bag or wrap format needs to survive its own conversion process and end use. Nexxa's formulation targets that balance point specifically for packaging-grade non-woven rather than defaulting to a one-size-fits-all filler loading across every non-woven end use.
Why Manufacturers Choose Nexxa
- →Production capacity dedicated exclusively to this product line — a non-woven customer's order runs on lines not shared or rotated with talc-filled or barium-sulphate-filled grades, which is what keeps loading and dispersion consistent lot after lot
- →Fifteen years of formulation and process expertise built specifically around calcium PP filler for non-woven applications, not general-purpose PP filler experience applied after the fact
- →A dedicated in-house R&D team for this compound, continuously refining loading and MFI control rather than treating the formulation as fixed once released
- →Compounded on twin-screw extruders inside a highly automated plant, which is what makes 80–82% CaCO₃ loading achievable with even dispersion at the high line speeds spunbond and meltblown production demands
- →Manufactured entirely in India, removing the freight lead time, currency exposure, and minimum-order constraints that come with importing filler from overseas
- →Quality positioned — by the business's own process-capability assessment — to match and exceed leading Vietnam-grade filler exporters, at domestic lead times
- →In-house quality control on MFI and dispersion for every batch, rather than relying on incoming-inspection at the customer's line to catch inconsistency after the fact
What CaCO₃ loading does Nexxa's calcium PP filler for non-woven fabric use?
Our non-woven grade calcium PP filler is formulated at 80–82% CaCO₃ loading with an MFI of 25 ± 5, a combination tuned specifically for spunbond and meltblown line processability rather than borrowed from a general-purpose PP filler grade.
Which non-woven applications is this filler used for?
Four segments: hygiene products (diapers, sanitary items), geotextile and agro-textile fabric, medical and PPE non-woven fabric, and non-woven packaging fabric — each with its own tolerance for loading and melt-flow consistency, which our formulation and QC process accounts for.
How is Nexxa's calcium PP filler manufactured?
On twin-screw extruders inside a highly automated plant, with a dedicated in-house R&D team and fifteen years of process expertise specific to this compound. Production capacity is set aside exclusively for this product line rather than shared across other filler grades, which is what holds batch-to-batch consistency at the level non-woven lines require.
How does this filler compare to imported filler, such as from Vietnam?
Nexxa positions this compound's quality to match and exceed leading Vietnam-grade filler exporters, based on our own process capability and formulation consistency, while being manufactured domestically in India — which removes the freight lead time, currency exposure, and minimum-order friction that come with importing.
Can Nexxa supply a custom loading or MFI outside the standard 80–82% / 25 ± 5 range?
Our in-house R&D team works with converters to tune loading and melt flow for a specific line or fabric target where the standard grade isn't the right fit — get in touch with the specifics of your process and we can advise on feasibility.
Ready to discuss your requirements?
Our technical team will help you find the right compound for your application. Get in touch for samples, specifications, or a custom quote.