Suede leather is quite popular because of its unique texture. However, the wrong cleaning method will do irreversible damage to the suede leather. Using the regular alkaline detergents (laundry powder or soap) to clean the suede leather and exposing it to direct sunlight can easily cause it to turn yellow and harden. In severe cases, the entire piece of material may become stiff and board-like, which is similar to cardboard. What exactly causes this? Is there still a possibility of restoration? This article will systematically analyze the damage mechanism of suede leather and provide scientific restoration recommendations.

Alkaline Detergents
Suede leather, which is also known as chamois leather, has a delicate structure and a fine, fuzzy surface. It needs additional care in cleaning and maintenance.
Damage from improper cleaning:
● Wrong detergents
Leather is made of collagen fibers. Alkaline detergents will easily damage the fibers and make the leather lose elasticity and softness.
● Loss of natural oils
The oils during the manufacturing process are important to maintain leather’s softness. Alkaline detergents can wash away these oils. This will cause fiber adhesion and stiffness.
Natural oils are needed during the manufacturing process to keep leather soft and supple. Improper cleaning can wash these important oils away.
● Irreversible collapse of the fuzzy surface
After washing, the fuzzy fibers stick together when wet. If it is dried improperly (exposed to direct sunlight), rapid moisture evaporation will solidify the fibers, making it impossible for the fuzz to stand up again.
● Multiple causes of yellowing
– Residues of alkaline substances form soap scum.
– Chemical reactions occur with leather tanning agents and dyes.
– Calcium and magnesium ions in hard water combine with detergent components, exacerbating sedimentation and yellowing.
The Possibility of Restoration
If suede leather has already hardened and yellowed, people can try restoration. However, it should be clearly noted that it is nearly impossible to fully restore the suede leather to its brand-new state.
Hardening and fuzzy fiber adhesion are deep-seated structural damages. Even if improvements are achieved through methods like oil replenishment and buffing during restoration, the damage to the protein fibers is still irreversible. Improper operation may even further embrittle the leather surface.
Four-Step Scientific Restoration Method
If you still wish to try restoration, please strictly follow the steps below:
● Neutralize Alkaline Residues
Add a small amount of white vinegar, lemon juice, or a dedicated acidic regulator (glacial acetic acid) to cold water → fully soak the leather for 15–20 minutes → gently press it to help penetration → rinse thoroughly with plenty of cold water until no foam remains.
● Replenish Oils to Restore Flexibility
Use a dedicated leather oil replenisher → apply it evenly to the surface with a soft-bristled brush or sponge → seal the treated leather in a plastic bag → let it sit for 24 hours to allow the oil to fully penetrate.
● Restore the Suede Texture
The leather is 70%–80% dry → gently brush it in the same direction with a dedicated suede brush (raw rubber brush or brass wire brush) when → fully dry → lightly sand it with fine sandpaper to help the fuzzy fibers stand up again.
● Color Restoration
If the original color is severely damaged, people should use a professional leather dye for color touch-up.
Professional Advice
● It is recommended to entrust professional institutions for treatment
Especially high-value suede leather products or those with sentimental value should be sent to professional leather care shops for cleaning and maintenance. This can reduce risks as much as possible.
● Choose the right cleaning products
People should use neutral and suede-specific care products.
● Avoid exposure to direct sunlight
After cleaning, the leather must be placed in a cool, well-ventilated area to dry slowly. Never expose it to direct sunlight or dry it with high-temperature heating.

Conclusion
Kingstar reminds every laundry industry practitioner that people should master the characteristics of suede leather items and use a scientific cleaning method. Reasonable care and professional operation are the keys to extending the service life of the leather and maintaining its beauty.

