Aniline (Sauvage) - Waterstained Aniline Chair

I have 10 year old Hancock and Moore Aniline Chair and Ottoman with severe water stains on the chair only. What products would you recommend and how should I proceed?

#1
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The seat has a very dark stain, and light water satin across the front of the cushion.
#2
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#3
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The back and sides have severe water stains, I can feel a ridge, like calcium or the leather has raised at the center of the water stain?
#4
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The arms each have a slightly less pronounced water stain, I will work on them if we can figure out how to get the other stains out first.

>>> The seat has a very dark stain, and light water satin across the front of the cushion.

This dark stain may have some dye content in it.
Use a “reverse transfer” technique by using a stretchable paper towel saturated with Prep-4.4 Do a testing with Prep-4.4. Leave it to dwell for up to 72 hours with constant 12 – 24 hours inspection. Overworking it may cause a discoloration to the aniline dyestuff as well. Discoloration if any may be rectify with Hydrator-3.3 dwelling under control evaporation to the same area with double the dwelling time. This Hydrator-3.3 dwelling may reactivate the dormant dyestuff from beneath and redistribute to the surface again. Camouflage damage topcoat may reveal after the stain is gone and this is rectify with AnilineTop-21/76Gloss first before considering to “dye coating” it with Aniline-76.

Here is an example of “Reverse Transferring” a stain.
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Product information:
Leather Doctor Prep-4.4 (Aniline, Nubuck & Suede)
Leather Doctor® Prep-4.4 is the leather-safe milder version of Prep-7.7 with a pH value of 4.4 for pH sensitive leathers. This universal prep cleaner is for all leather types including the common vachetta, nubuck, suede, wet-white and all aniline leather types This prep cleaner works by allowing sufficient dwell-time to penetrate, lubricate and suspense prior to towel extraction. Proven technique include “reverse transferring” suspended stain during dwell time through a stretchable absorbent paper rather than being reabsorbed by the leather instead.

It is design to remove stain such as:
a) Blue Jean Dye
b) Leather Belt
c) Plastic Ink Print
d) Newsprint,
e) Ballpoint Ink,
f) Stamp Pad Ink
g) Sticky Label Residue,
h) Crayon,
i) Chewing Gum,
j) Silicone Shine
k) Permanent Marker
l) Accumulated Soiling

It is highly recommended that the remaining sticky residue is thereafter remove in conjunction with Cleaner-3.8 and Rinse-3.0 as a holistic leather-safe system..

Roger Koh
Leather Care Consultant
www.LeatherDoctor.com
[email protected]

>>> I have 10 year old Hancock and Moore Aniline Chair and Ottoman with severe water stains on the chair only. The back and sides have severe water stains, I can feel a ridge, like calcium or the leather has raised at the center of the water stain?

This severe water stain is most probably alkaline salty contaminated water that causes the breaking of the leather constituents to leach and accumulating at he edge with possible combination with foreign solids. Protonating the leather protein fiber is the first process with Acidifier-2.0 to recharge it ionic positive (+ve) to re-attract the fugitive leather constituents during the redistributing of the colloid within the leather structure system with Hydrator-3.3. This empty leather structure will need replenishing with Fatliquor-5.0 thereafter when appearance returns to normal without the ridge.

All other milder water damages areas are solves in similar process.

Product information:


Attachment 3164
Leather Doctor Kit At5.ws – Auto Leather Water Stain Removal Kit
Leather Doctor® Kit At5.ws, auto leather water-stain remover kit is design to remove water stains as the results of destabilizing the leather pH equilibrium. The side effect of alkaline overexposure manifests as marks and rings behaving like litmus paper. The darkening rings are leather constituents that breaks bond with the protein fiber and migrate forming the outer ring. Stains are clean with Clean-3.8 to remove surface residue prior to Acidifier-2.0. Acidifier-2.0 neutralizes the alkaline overexposure recharging the protein fiber ionic positive to re-attracts the ionic negative leather constituents. The leather is saturated and dwell up to 72 hours for extreme cases to facilitate redistribution and wicking up foreign contamination. A paper tissue covering without airspace helps trapped stains instead of remaining on the leather surface when dry. Hydrator-3.3 helps to redistributes the inter-fibrillary colloidal water movement; bringing the remaining stain to surface prior to fat and oil replenishing. Fatliquor-5.0 rejuvenates and imparts leather with softness and suppleness when dry. Protector-B+ enhances a non-stick rub-resistant protection with a buttery-feel that shield against sticky soiling. Note that the mentioned product suffix number denotes its pH value in this holistic leather-safe aniline leathers pH stabilizing system to eliminate water stains. Leather protein fiber is an amphoteric material while the other leather constituents like the tanning agents, dyestuffs and fatliquor are not. The iso-electric point (pI) of leather averages pH 4, water averages pH 7. Between pH 7 and pH 4 there is an ionic difference of 1000 (one thousand) times. Foreign pH influences below the pI charges the protein fiber ionic positive while above the pI causes the protein fiber to shift ionic negative. The ionic leather constituents and the protein fibers behave like magnets, unlike poles attracts.