Rockytan NLB – Synthetic Retanning Agent for Soft, Light-Fast Leather

Rockytan NLB is a high-performance synthetic retanning agent based on a copolymer of melamine and sulphited phenol. Developed for modern leather processing, it provides excellent softness, fullness, and light fastness while maintaining the original color shade of the leather.

Rockytan NLB is suitable for use both before and after fatliquoring, making it a versatile solution for tanning and retanning operations. Its unique formulation ensures outstanding performance on hides and skins, particularly in white and light-colored crust leathers where color stability is essential.

Key Features and Benefits:

• Suitable for both hides and skins.
• Can be used before and after fatliquoring.
• Provides excellent softness and fullness.
• High resistance to light and aging.
• Does not affect the original color shade of leather.
• Particularly suitable for white and light-colored crust leathers.
• Compatible with dark-colored leather articles.
• Improves the handle and touch of finished leather.
• Easily soluble in water for convenient application.

Technical Specifications

Applications in Leather Processing

Rockytan NLB has been specially designed for use during the tanning and retanning stages to improve the physical properties and appearance of leather. It can be incorporated into the process both before and after fatliquoring, providing manufacturers with greater flexibility in formulation design.

Recommended applications:

• Retanning of bovine hides and sheep skins.
• White and light-colored crust leather production.
• Footwear leather.
• Upholstery leather.
• Garment leather.
• Leather goods and accessories.
• Suede and nubuck articles.
• Dark-colored leather applications.

Because of its excellent color stability, Rockytan NLB is particularly recommended for leather articles where brightness and shade consistency are critical.

Performance Advantages:

Rockytan NLB offers several advantages during leather production:

Excellent Light Fastness

Its formulation provides high resistance to light exposure, making it ideal for white and pastel-colored leathers that require long-term color stability.

Superior Softness and Handle

The product enhances the softness, fullness, and smooth touch of finished leather without negatively affecting the grain structure.

Outstanding Color Compatibility

Unlike some conventional syntans, Rockytan NLB does not interfere with dye shades, allowing manufacturers to achieve uniform and consistent colors across a wide range of leather articles.

Flexible Application

Rockytan NLB can be applied both before and after fatliquoring, giving tanners greater process flexibility and formulation options.

Recommended Use:

The dosage of Rockytan NLB depends on:

• Type of leather.
• Desired softness and fullness.
• Color requirements.
• Retanning formulation.
• Final application of the leather.

For optimum performance, careful pH adjustment during processing is recommended to ensure proper fixation and achieve high-quality finished leather.

Laboratory and production trials are recommended to determine the ideal dosage for each application.

Why Choose Rockytan NLB?

Rockytan NLB combines excellent softness, light fastness, and color stability in a single product. Its melamine-phenol copolymer technology makes it an ideal retanning agent for manufacturers seeking premium-quality leather with a smooth handle and consistent appearance.

Whether producing white crust, fashion leather, upholstery, or footwear articles, Rockytan NLB helps deliver reliable and reproducible results.

Packaging:

Rockytan NLB is available in:

• 25 kg polyethylene (PE) bags.

Additional packaging options may be available upon request.

Storage Conditions:

For maximum product stability:

• Store in tightly sealed containers.
• Keep between 5°C and 25°C.
• Protect from moisture and direct sunlight.
• Avoid freezing and excessive heat.

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

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