PROOF S

Premium Leather Fatliquoring Chemical

Key Features

1. Synthetic-Based Fatliquoring System
PROOF S is based on synthetic oils and petroleum-derived components designed for general-purpose leather fatliquoring.
2. Suitable for Different Leather Types
The product can be incorporated into fatliquoring systems for:
• Chrome-tanned leather
• Vegetable-tanned leather
• Mixed-tanned leather
• Other suitable leather types requiring lubrication and softening
3. Excellent Penetration
PROOF S provides strong penetration into the leather structure, helping distribute the fatliquoring material rapidly and uniformly throughout the leather.
4. Good Fixation
Its fixation characteristics support effective retention of the fatliquoring components within the leather structure.
5. Soft Waxy Touch
The product contributes to a soft, smooth and waxy hand-feel, making it particularly useful where tactile quality is an important characteristic of the finished leather.
6. Light Waterproofing Effect
PROOF S provides a light waterproofing effect, adding a degree of water-repellent performance to the treated leather.
7. Grain Firmness
Despite its softening action, the product is designed to help maintain a firm grain, supporting the desired balance between softness and surface structure.
8. Fullness Without Excessive Weight
PROOF S contributes to a feeling of fullness while helping avoid an undesirable increase in leather weight.
9. Fiber Structure Support
The product is designed to lubricate the leather fibers without reducing the compaction of the fiber structure.
10. Electrolyte Stability
PROOF S demonstrates good electrolyte stability, supporting its use within suitable leather processing conditions.
11. Good Grinding Behaviour
The product offers good grinding behaviour, contributing to processing performance in relevant leather production applications.
12. Compatibility with Natural Oils
PROOF S can be combined with natural oils where required to improve the stability of the overall fatliquoring mixture.

Key Benefits

The use of PROOF S can help leather manufacturers achieve a balanced combination of physical and tactile properties.
Enhanced Leather Softness
PROOF S helps develop soft leather with a pleasant hand-feel, making it suitable for applications where flexibility and softness are important.
Improved Fiber Lubrication
Its fatliquoring action provides lubrication within the leather structure, helping the fibers move more effectively and contributing to flexibility.
Uniform Fatliquor Distribution
Its rapid penetration and distribution characteristics help provide a more uniform treatment throughout the leather.
Fuller Leather Handle
PROOF S contributes to a fuller feel, helping manufacturers achieve the desired body and substance without unnecessarily increasing leather weight.
Soft Waxy Surface Feel
The product provides a characteristic waxy soft touch that can contribute to the sensory quality of finished leather.
Light Water Resistance
Its light waterproofing effect makes PROOF S useful for leather formulations where some additional resistance to water is desired.
Grain Firmness
The formulation supports a balance between a soft handle and firm grain, an important consideration in many leather applications.
Processing Flexibility
Its suitability for chrome, vegetable and mixed-tanned leather gives manufacturers flexibility when incorporating the product into different production systems.

Overview

PROOF S is a synthetic fatliquor for leather developed for general-purpose fatliquoring applications. It can be used on different types of leather, including chrome-tanned, vegetable-tanned and mixed-tanned leather.
Its strong penetration and fixation characteristics enable the fatliquor to distribute efficiently through the leather structure. This helps achieve a uniform lubrication effect while contributing to softness, fullness and flexibility.
PROOF S can also be combined with selected natural oils to improve the stability of the resulting fatliquoring system, providing leather manufacturers with additional flexibility when developing specific formulations.
Product Type
Waterproof Waxy-Synthetic Polymer / Synthetic Fatliquor
Recommended Function
• Leather fatliquoring
• Leather softening
• Fiber lubrication
• Leather fullness enhancement
• Waxy hand-feel development
• Light waterproofing
• Uniform oil distribution
• Leather flexibility improvement

Why Source PROOF S from Rania Enterprises?

Rania Enterprises is a supplier of premium leather chemicals in Pakistan, providing chemical solutions for different stages of leather manufacturing.
The company’s approach combines global sourcing with technical knowledge of leather processing requirements.

Global Sourcing
Rania Enterprises sources premium chemical products from international suppliers, including IGC France, helping Pakistani leather manufacturers access specialized chemical technologies.
International Standards
Products are sourced and supplied with an emphasis on quality, consistency and international manufacturing standards.
Comprehensive Product Portfolio
Rather than focusing on a single processing stage, Rania Enterprises provides chemical solutions spanning beamhouse, tanning, retanning, fatliquoring and finishing applications.
Technical Support
Customers can consult with Rania Enterprises regarding product selection, application and dosage according to their leather-processing requirements.
Local Market Understanding
As a supplier serving the Pakistani leather industry, Rania Enterprises understands the practical requirements of local tanneries and leather manufacturers while connecting them with internationally sourced chemical solutions.

Serving Tanneries Across Pakistan

Rania Enterprises supplies high-quality fatliquoring chemicals across Pakistan, serving leather manufacturers and tannery units in major industrial hubs including Lahore, Karachi, Sialkot, and Faisalabad. With a strong understanding of the local leather industry, we are committed to delivering high-performance leather processing chemicals that enhance softness, durability, and consistency in production. Our solutions are carefully tailored to meet the practical and technical requirements of Pakistani tanneries, ensuring reliable results at every stage of the leather manufacturing process.

Industries Served

PROOF S is intended for professional leather-processing environments, particularly:

Leather Tanneries
Suitable for incorporation into industrial fatliquoring systems where consistent softness, lubrication and leather handle are required.
Leather Garment Manufacturing
Its application in clothing nappa makes it relevant to leather garment production where softness and hand-feel are important.
Leather Processing Units
PROOF S can form part of broader leather chemical solutions used during the fatliquoring stage of leather processing.
Industrial Leather Manufacturing
Its synthetic formulation and technical characteristics make it suitable for appropriately formulated industrial leather-processing systems.

Performance Advantages

PROOF S is designed to provide a combination of fatliquoring performance and desirable finished-leather characteristics.

Softness + Grain Firmness
One of the principal advantages of PROOF S is its ability to contribute to a soft leather handle while supporting grain firmness.
Fullness + Low Weight Contribution
The product provides a feeling of fullness without the formulation objective of unnecessarily increasing the weight of the leather.
Penetration + Uniform Distribution
Its penetration characteristics help the fatliquoring components move efficiently through the leather structure and achieve a more uniform distribution.
Lubrication + Flexibility
The lubrication of leather fibers contributes to flexibility and a softer handle.
Waxy Touch + Light Waterproofing
PROOF S combines a soft waxy touch with a light waterproofing effect, providing both tactile and functional benefits.
Stability + Processing Performance
Good electrolyte stability and grinding behaviour support its use in suitable industrial leather-processing systems.

Technical Specifications

Product Name	PROOF S
Product Type	Water-proof Waxy-Synthetic Polymer / Synthetic Fatliquor
Physical State	Viscous liquid
Colour	White
pH	7.0–7.5
Active Matter	50% ± 2%
Charge	Anionic
Main Function	Fatliquoring, softening, lubrication and light waterproofing
Recommended Leather Types	Chrome-tanned, vegetable-tanned and mixed-tanned leather
Storage Stability	12 months at room temperature

The above technical values represent average results from product testing and experiments. Actual performance may vary according to leather type, process conditions, dosage and other chemicals used in the formulation.

Application Process

PROOF S is primarily used as part of the leather fatliquoring process.
Step 1 – Preparation of the Emulsion
For emulsion preparation, add approximately 3–4 parts of water heated to 50–55°C to 1 part of PROOF S.
The resulting emulsion is described as stable under the recommended preparation conditions.
Step 2 – Addition to the Fatliquoring Process
The prepared PROOF S emulsion can be incorporated into the appropriate fatliquoring bath according to the leather type and the desired final characteristics.
Step 3 – Process Adjustment
The precise dosage should be determined according to:
• Leather type
• Tanning system
• Leather thickness
• Desired softness
• Desired fullness
• Required hand-feel
• Desired waterproofing effect
• Existing fatliquoring formulation
• Other chemicals used in the process

Use Cases

PROOF S is intended for professional leather-processing environments, particularly:

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Contact us to learn more about our products and how we can help optimize your leather production processes. At Rania Enterprises, we provide a wide range of products to meet your specific needs.