Reliance PP Repol H350FH

Reliance PP Repol H350FH is a controlled rheology polypropylene homopolymer developed by Reliance Industries Limited under the Repol brand for high-speed filament spinning and spunbond non-woven applications. It is engineered for processors who require stable viscosity, excellent uniformity, and dependable performance in fine denier yarn and low-GSM non-woven production. For buyers searching for Reliance H350FH TDS, PP homopolymer for spunbond non-woven, or controlled rheology polypropylene for fibre spinning, this grade is a highly relevant commercial and technical option.

Manufactured by Reliance Industries Limited, one of India’s leading integrated petrochemical producers, Repol H350FH belongs to a specialized polypropylene portfolio designed for fibre, non-woven, film, raffia, and industrial conversion applications. Within this range, H350FH is positioned as a hygiene and filament-focused high-flow grade that combines controlled rheology with gas-fading resistance, making it especially suitable for white, natural, and appearance-sensitive non-woven and filament products.

Manufacturer and Brand Background

Reliance Industries Limited is a major producer of polypropylene in India with strong domestic supply capability and global market presence. Its Repol brand is widely recognized across polymer markets for application-specific polypropylene grades developed for injection molding, films, raffia, fibre, non-wovens, and specialty industrial uses.

Repol H350FH sits within the fibre and non-woven family and is designed for processors looking for a polypropylene homopolymer that can deliver high-speed spinnability, low-basis-weight fabric consistency, and stable output across demanding production lines. The grade is particularly relevant for hygiene, medical, filtration, packaging, and agricultural non-woven segments where process reliability and fabric quality are critical.

Controlled Rheology Design and Grade Positioning

A key differentiator of H350FH is its controlled rheology design. This means the grade is optimized for stable melt behavior under high shear conditions, which is highly important in spinnerets and spunbond lines running at high speeds. Compared with standard high-MFI polypropylene homopolymer grades, H350FH is better suited for maintaining consistent filament formation, improved web uniformity, and reduced process variation.

The grade also incorporates process stabilizers to minimize thermal degradation during spinning and non-woven conversion, along with an anti-gas-fading package that helps reduce yellowing caused by nitrogen oxides and ozone exposure. This makes it especially useful in hygiene and medical non-wovens where whiteness, cleanliness of appearance, and long-term visual stability matter.

Technical Properties and Material Performance

Reliance PP Repol H350FH has a melt flow rate of around 38 g/10 min, placing it in the very high-flow category of polypropylene homopolymer grades used for fibre and non-woven applications. This high MFI supports easy melt flow, high-speed processing, and efficient formation of fine denier filaments and low-GSM webs.

The density is approximately 0.90 g/cm³, which is typical for polypropylene homopolymer and supports lightweight finished products. Mechanical performance is generally aligned with rigid PP homopolymer behavior, with tensile strength at yield in the mid-30 MPa range, elongation at yield around 9 to 11 percent, and flexural modulus roughly in the 1.5 to 1.6 GPa range. These values indicate a material profile that offers sufficient stiffness and structural integrity for fibre and non-woven applications without being designed around maximum impact performance.

From a thermal and processing perspective, H350FH is intended for stable operation in demanding spinning environments. Its controlled rheology helps maintain viscosity consistency under processing stress, which supports better filament diameter control and lower breakage risk. For non-woven manufacturers, this translates into improved web uniformity, more stable throughput, and better fabric consistency.

Processing Guidance

Typical processing guidance for H350FH includes melt or extruder temperatures in the range of about 210°C to 250°C, depending on machine configuration and product requirements. Quench bath temperatures are generally in the 10°C to 20°C range, while godet roll temperatures are typically around 80°C to 120°C. Draw ratios in the range of 2.8 to 3.2 are commonly referenced for fine denier yarn production, and texturising temperatures around 125°C to 165°C may be used depending on the downstream process.

These values should be treated as practical starting points rather than fixed settings, since actual optimization depends on line speed, denier target, equipment design, and end-use application. The real advantage of H350FH is that it provides a broad and production-friendly operating window for processors focused on fine denier filament and low-weight non-woven output.

Applications and Industry Use Cases

Fine Denier Filament Yarns

Reliance PP Repol H350FH is highly suitable for fine denier filament yarn production where stable flow, controlled filament formation, and consistent output are essential. It supports high-speed spinning of POY, FDY, and crimped filament yarns used in apparel, home textiles, technical textiles, and selected industrial yarn applications. Its controlled rheology helps maintain filament uniformity, which is important for both process efficiency and end-product quality.

Spunbond Non-Wovens for Hygiene and Medical Use

One of the strongest application areas for H350FH is spunbond non-woven production for hygiene and medical sectors. The grade is well suited for diaper components, sanitary products, surgical gowns, masks, drapes, and other disposable non-woven articles where low-GSM fabric consistency, whiteness retention, and production stability are important. Its gas-fading resistance adds value in white and non-pigmented products where appearance quality directly affects market acceptance.

Filtration Non-Wovens and Technical Fabrics

H350FH is also relevant for filtration media and technical non-woven fabrics used in air filtration, liquid filtration, industrial wipes, and specialty technical applications. The combination of high flow and excellent uniformity supports web consistency, which is important for filtration performance and reliable downstream converting. For manufacturers targeting functional non-wovens, this grade offers a strong balance of processability and structural performance.

Packaging and Agricultural Non-Wovens

Beyond hygiene and filtration, H350FH can be used in packaging non-wovens, lightweight wraps, and agricultural fabrics such as crop covers and protective textiles. Its ability to support low-weight fabric production makes it commercially useful in applications where material efficiency, appearance, and stable line performance are all important. This broadens its relevance across multiple non-woven converting industries in India.

Performance Advantages of Reliance PP Repol H350FH

The most important advantage of H350FH is its controlled rheology profile. In high-speed spinning and spunbond lines, stable viscosity under shear helps reduce process fluctuations, improve filament consistency, and lower the risk of line interruptions. This makes the grade more reliable than generic high-flow PP homopolymer grades that may not be optimized for demanding fibre and hygiene applications.

Another major strength is its excellent uniformity for fine denier and low-GSM structures. In hygiene, medical, and filtration products, even fibre distribution and stable web formation are critical. H350FH is designed to support those outcomes, which helps processors improve both productivity and finished product quality.

Its anti-gas-fading package is also a valuable differentiator. White and natural non-woven products can lose market appeal if they yellow during storage or exposure to environmental pollutants. H350FH helps reduce that risk, making it more suitable for appearance-sensitive applications than standard PP homopolymer grades without this formulation focus.

Comparable Alternatives

Within the Reliance Repol family, H350FG and H200FG are the most relevant alternatives. H350FG operates in a similar high-flow range and is suitable for fibre, non-wovens, and extrusion coating, but H350FH is more specifically positioned around controlled rheology and hygiene-focused spunbond performance. For processors prioritizing low-GSM non-woven consistency, fine denier spinning stability, and hygiene-grade output, H350FH is often the more targeted option.

H200FG, with a lower MFI around 20, is better suited where a stronger balance between spinnability and tenacity is required. It is often preferred for broader fibre applications where slightly lower flow and stronger yarn-oriented performance are more important than maximum speed. In contrast, H350FH is the better fit when very high throughput, web uniformity, and controlled rheology are the main priorities.

Compared with Indian alternatives such as HMEL Polysure Y25GR and Y25GR1, IOCL Propel fibre grades, and OPaL PP non-woven grades, H350FH stands out as a higher-MFI, controlled-rheology option designed for premium non-woven and filament applications. Mid-flow grades may offer more tenacity or broader general-purpose use, but H350FH is the stronger choice when processors need high-speed spinning, low-GSM fabric capability, and better appearance retention in hygiene and medical products.

The rationale behind H350FH is clear: it is assigned to applications where controlled rheology, very high flow, non-woven consistency, and gas-fading resistance matter more than the extra tenacity associated with lower-flow fibre grades.