Rockytan RHMN – Amino Resin Retanning Agent for Fullness, Grain Tightness, and Dye Leveling

Rockytan RHMN is a high-performance retanning agent based on amino resin technology, specially developed for the retanning of all types of chrome-tanned leather. It provides excellent filling properties, improves grain tightness, and enhances the overall quality and appearance of finished leather.

Thanks to its unique formulation, Rockytan RHMN significantly increases leather fullness, particularly in loose areas of the hide such as the belly and flanks. In addition, it improves buffing and embossing characteristics while promoting more uniform dye penetration and leveling.

Rockytan RHMN is suitable for a wide range of leather articles, including footwear, upholstery, garment, nubuck, and corrected-grain leathers.

Key Features and Benefits:

• Suitable for all types of chrome-tanned leather.
• Increases fullness, especially in loose areas of the hide.
• Improves grain tightness and leather compactness.
• Enhances buffing and embossing properties.
• Promotes excellent dye penetration and leveling.
• Produces a more uniform leather structure.
• Compatible with various retanning systems.
• Improves the appearance and handle of finished leather.
• Easy to incorporate into leather-processing formulations.

Technical Specifications

Applications in Leather Processing:

Rockytan RHMN is designed for use in the retanning stage to improve the physical properties and processing performance of chrome-tanned leather. Its filling action is particularly effective in areas with a loose fiber structure.

Recommended applications:

• Footwear leather.
• Upholstery leather.
• Garment leather.
• Corrected-grain leather.
• Nubuck and suede leather.
• Embossed leather articles.
• Chrome-tanned bovine, sheep, and goat leather.

Rockytan RHMN can be used in combination with acrylic, vegetable, and synthetic retanning agents to achieve specific leather characteristics.

Performance Advantages:

Excellent Filling Effect

Rockytan RHMN increases fullness and body, especially in loose belly and flank areas, helping to create a more compact leather structure.

Improved Grain Tightness

The product enhances grain tightness and contributes to a smoother, finer leather surface.

Better Buffing and Printing Properties

Rockytan RHMN improves buffing performance and supports embossing and printing operations by creating a more uniform leather structure.

Superior Dye Leveling

Its amino resin technology promotes even dye penetration and distribution, resulting in brighter and more homogeneous shades.

Recommended Application:

Rockytan RHMN is generally applied after the neutralization stage.

Typical dosage:

• 2–6% based on shaved wet blue weight.

The dosage may vary according to:

• Leather type.
• Required fullness and grain tightness.
• Buffing and embossing requirements.
• Desired softness and handle.
• Final article specifications.

Laboratory and production trials are recommended to determine the optimum dosage and process conditions.

Why Choose Rockytan RHMN?

Rockytan RHMN combines excellent filling properties with improved grain tightness, buffability, and dye leveling. Its amino resin technology allows leather manufacturers to produce high-quality leather with superior uniformity and enhanced processing performance.

Whether used for footwear, upholstery, embossed leather, or garment applications, Rockytan RHMN delivers reliable and consistent results.

Packaging:

Rockytan RHMN is available in:

• 25 kg polyethylene (PE) bags.

Other packaging options may be available upon request.

Storage Conditions:

For maximum stability and performance:

• Store in tightly sealed containers.
• Keep in a dry place at temperatures between 5°C and 25°C.
• Protect from moisture and direct sunlight.
• Avoid excessive heat and freezing conditions.

Under proper storage conditions, Rockytan RHMN has a shelf life of 12 months.

Always consult the Material Safety Data Sheet (MSDS) before use.