Our leather upgrading technology turns flawed leather into exceptional leather

Our leather upgrading technology turns flawed leather into exceptional leather

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With only perfectly smooth leather good enough for the apparel, accessories and home interior industries, tanners and manufacturers face increased demand for high-end, premium leather. But there’s a limit to the available raw material. The good news is that with Stahl’s portfolio of leather upgrading technology solutions, you can turn flawed, average leather into excellent leather.


Stahl leather upgrading solutions mask scars, defects and flaws

Applying our easy-to-use techniques to the leather substrate can mask almost any type of grain defect. This increases the quality of the leather and the usable surface area. The result is a higher yield of smooth, fashionable leather with a natural feel and classic elegance. Stahl Upgrading Solutions don’t just improve the product, they increase the amount of usable material as well. They help to secure the leather supply chain and boost the value chain. Key benefits include:

You can upgrade leather at several phases in the production process, depending on the solution you choose. You can also choose the quality gradation you want, to achieve the precise effect you are seeking. In line with your production methods, scale and product needs, we can advise you on the most fitting solution from our four ranges: Stahl Aquabase, Stahl Lepton® Enhancer, Stahl Melio® Ground and Stahl Mirage®. All these solutions are Stahl Neo® compliant.


Discover our range of Stahl Neo® ZDHC-compliant products

Stahl Aquabase, Stahl Melio® Ground, Stahl Lepton® Enhancer and Stahl Mirage® are part of our Stahl Neo® portfolio of leather solutions. Stahl Neo® is our complete portfolio of leather processing products that is compliant with the Zero Discharge of Hazardous Chemicals (ZDHC) Manufacturing Restricted Substances List (MRSL), and also designed to be free of additional substances, not on the ZDHC list. 


Aquabase for high to medium upgrading

The Aquabase portfolio is ideal for leather used in home interiors, for shoes and other leather goods. Aquabase creates high-performance, durable leather with a smooth and elegant surface. Aquabase can be hand or roller applied.  


Lepton® Enhancer for high to medium upgrading

Our Lepton® Enhancer solutions are the right choice for the medium to high upgrading of leather used in home interiors, for shoes and other leather goods. Lepton® Enhancer can be applied to the surface or as additives in a base coat application.


Melio® Ground: medium leather upgrading

Melio® Ground upgrading solutions are perfect for medium upgrading. They create smooth leather with a natural feel and long-lasting elegance that is ideal for robust upholstery, classic leather shoes and other leather goods it. Melio® Ground ensures film formation while sealing the grain of the leather.


Mirage®: fine to medium upgrading

The Mirage® range is what you need if you’re looking for subtle upgrading in premium garments, soft shoes and leather goods. Stahl Mirage® comprises pre-base systems and various additives to enhance leather characteristics and increase the material value. The result is film-formation with less resin and more wax and oils for a first-class, smooth leather. 


Stahl Upgrading Solutions and their applications

Family
Product
Type
Typical Application
Upgrading Level
Post Operation
Leather type
Aquabase

Aquabase M-399
Aquabase MN
Aquabase W-MN

Hand stucco
Spatula
High
Buffing
CG
CG
CG

Aquabase EF
Aquabase FPR-01
Aquabase HF
Aquabase HP
Aquabase TF

Roller stucco
Reverse Roller Coater
Medium
No buffing
Polishing
Buffing
Buffing
Plating - Buffing
FG
FG
CG
CG
CG
High
Lepton® Enhancer

Lepton® Enhancer CG
Lepton® Enhancer FG

Roller stucco
Reverse Roller Coater
High / Medium
Plating - Buffing
Ironing
CG
FG
CG/FG
CG/FG

Lepton® Enhancer CP
Lepton® Enhancer LT

Base coat additive
RRC & Spray
High / Medium
-
-
Melio® Ground

Melio® Ground CL
Melio® Ground MG

Sealer coat additive
RRC & Spray
Medium Ironing
-
CG
CG/FG
CG/FG
CG/FG
CG/FG
CG/FG

Melio® Ground PG.A
Melio® Ground S8
Melio® Ground SPG
Melio® Ground UP

Preground
Reverse Roller Coater
Ironing/Embossing
RRC & Spray & Padding
Mirage®

Mirage® MA-389
Mirage® MA-875
Mirage® MA-881
Mirage® MA-941
Mirage® MA-22-341

Sealer coat additive
Spray & Padding
Fine
Medium
Medium
Fine
Medium
Ironing/Polishing
FG
CG/FG
CG/FG
FG
CG/FG
FG
FG
FG
FG
Polishing
Ironing

Mirage® MA-77-010
Mirage® MA-77-013

Hand stucco
Spatula
Medium
Ironing 120°C
Polishing

Mirage® MA-77-298
Mirage® MA-77-398

Sealer coat additive
Spray & Padding
Fine / Medium
Ironing/Polishing



The case for upgrading leather

Leather continues to grow in popularity. It’s found on more and more sofas, settees, chairs and other home furnishing items. Its use for shoes, boots, bags, coats, hats, jackets, belts and other garments and accessories is timeless. And where once leather car seats, upholstery and trim were rare, they are increasingly the norm in the upper and medium segments.

With demand for premium leather outstripping supply, tanners and manufacturers are looking for ways to improve standard leather and make it suitable for high-end applications. This is exactly what leather upgrading does – hide or remove grain defects – and the results can be indistinguishable from unimproved premium leather. By improving the quality of standard leather and increasing the yield from the raw hide, we can help to meet increasing demand simply by reducing waste.


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Our leather upgrading technology turns flawed leather into exceptional leather
Joachim Henkmann
Global Marketing - Business Unit Leather Chemicals