Aniline (Mono-Tone) - Cleaning Leather - What Type is it??

[mttbarb]

Hi,

Im looking for some help. I have a mid 1960s chair http://media.liveauctiongroup.net/i/...C658C99E843A70
All the lather cleaners i have used make the dye come off. I thought this was aniline leather but the dye still some off when i gently rub in a conditioner.
If i apply water its fine.

Any anyone help me identify the leather type and how to treat it?

Many thanks


Matt

PS I'm not looking to buy a $100 cleaning kit just looking some some advice.

[Roger Koh]

The chair in question.

[Roger Koh]

>>> Any anyone help me identify the leather type.

It looks aniline may need more pictures for positive identification.


>>> All the lather cleaners i have used make the dye come off … but the dye still some off when i gently rub in a conditioner. . .

Unknown accumulative alkalinity solution may have influence the leather protein fiber shifting it ionic negative (-ve) since the protein leather composition is an amphoteric material. Original dyestuff is ionic negative (-ve) and is also a non-amphoteric substance thus not influence by pH fluctuation that still remains ionic negative (-ve). With the shifting of the protein leather fiber from ionic positive (+ve) to negative (-ve) the hydrogen bonds breaks behave like magnetic attraction “like poles repel” and the dyestuff bleeds or leach out.


>>> how to treat it?

The ionic strength of the protein fiber has to be shifted back from ionic negative (-ve) to ionic positive (+ve).
And this is done with the help of Acidifier-2.0.
Perhaps a cleaning is done first with Clean-3.8 to remove surface soiling prior to Acidifier-2.0 treatment.
Conditioning of the leather for suppleness with softness and strength is done with Fatliquor-5.0
Relaxing the leather from unwanted creases and wrinkles is first done with Hydrator-3.0 prior to replenishing the fatliquor with Fatliquor-5.0.
Optional non-stick, non-resistant protection is done with Protector-B+


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


Products mentioned are found in this Kit A3.ws, individual refills are also available.



http://www.leatherdoctor.com/servlet...%29/Categories
Leather Doctor Kit A3.ws – Aniline Leather Water-Stain Remover Kit
Leather Doctor® Kit A3.ws, aniline leather water-stain remover kit is designed 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. Acidifier-2.0 neutralizes the alkaline overexposure and protonating or 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 towel covering without airspace helps trapped foreign particulates instead of remaining on the leather surface when dry. Watermarks are cleaned with Cleaner-3.8 to remove surface residue prior to Acidifier-2.0. Hydrator-3.3 helps to redistributes the inter-fibrillary water movement; helps reduce surface tension for a more even appearance 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.