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chet
01-04-2011, 01:38 PM
Roger, We have a 1 year old embossed leather ottoman with a large beverage stain. We tried to clean it and the stain remains but looks like there is less color everywhere else. I think the embossing has diminished.
We used Leather Cleaner, Rinse, Hydrator, and Fatliquore. Not sure if it will show up much in the pictures. I'm not too worried about the loss color yet, if we can either remove the darker stain areas or darken the rest of the leather to match.
Original before touching it.
http://i49.photobucket.com/albums/f289/Chet50/12-10-10031.jpg

http://i49.photobucket.com/albums/f289/Chet50/12-10-10033.jpg

After we cleaned it

http://i49.photobucket.com/albums/f289/Chet50/1-4-11056.jpg

http://i49.photobucket.com/albums/f289/Chet50/1-4-11055.jpg

http://i49.photobucket.com/albums/f289/Chet50/1-4-11054.jpg

We never cleaned the sides- and there is a difference in color but not as pronounced as the other pictures. These were taken in 2 different environments, the ottoman is in our shop now.

http://i49.photobucket.com/albums/f289/Chet50/1-4-11057.jpg

Roger Koh
01-04-2011, 04:00 PM
You may need specialty removers to do the job.

Depending on what’s in the drink – the first test is to use a drop of d’Tannin-3.5 on the stain and see if it lightens the darkening effect when it dries.

The next test is using another drop of d’Tarnish-1.3 and leaves it dry to see the effect.

The product description is as follows:


Leather Doctor® d’Tannin-3.5
It’s for Pigmented, Aniline, Vachetta, Nubuck, Suede, Hair-on-Hide and Woolskin leather types.
This is a pH 3.5 aqueous leather-safe tannin stain remover.
It’s for removing cellulose stains such as coffee, tea, wine and some dyes.
Stains that derive from plants will probably be removed with this product.
This product is available in 60ml, 250ml and in quart.
Instruction:
1] Test for discoloration on a hidden area - check when dry as it may strip some dyes.
2] A thorough cleaning is necessary for compound stains prior to application.
3] Apply by dropper, cotton swab or spray then extract with absorbent towel until towel shows clean.
4] Allow natural drying for chemical reaction to take effect, repeat if necessary.
5] Rinse residue with Rinse-3.0 to a healthy squeak.

Leather Doctor® d’Tarnish-1.3
It's for Pigmented, Aniline, Vachetta, Nubuck, Suede, Hair-on-Hide and Woolskin leather types.
This is a pH 1.3 aqueous leather tarnish stain remover.
It’s for removing metal stains like rust, tarnish, some ink and dye including urochrome yellowing effect.
This product is available in 30ml, 60ml, 250ml and in quart.
1] Apply with cotton swab or spray.
2] Leave it to dry for chemical action to take effect.
3] Neutralize thereafter with Basifier-8.8.
4] Rinse with Rinse-3.0 to a squeaky clean.


http://i300.photobucket.com/albums/nn4/Rogerkoh/LeatherSpecialtyRemover8.jpg
Leather Specialty Remover (8)


Roger Koh
[email protected]

chet
01-04-2011, 06:21 PM
Roger,
I can feel adifference where we cleaned it, the embossing is definately reduced. Is there a way to prevent this in the future, I'm sure there is no way to restore it?

Roger Koh
01-04-2011, 08:38 PM
Depending on the leather finish types; the absorbent types once it is soaked even with Cleaner-3.8 may relax the embossing; where else the non-absorbent types may not make any difference even with Hydrator-3.3 if it pools on the surface.

Another point is the leather tanning type; if it is the typical vegetable-tanned vachetta type and individual stamp; the embossing design is more rigid and more permanent; however there are the softer chrome-tanned type with other tanning agent added to make it stiffer will not be as permanent as this types are normally done by embossing plate with heat and pressure.

With the above information; we can only reduce the embossing effect; and customer need to be educated up front prior to working on any embossing leathers.

If you have the set of stamping tool; there is a possibility to restore the effect; just need to go over every design.

You would also need a working base to take the impact to recreate the design – back to the beginning of “leather stamping” where the leather is laid flat.

So, it is a yes and a no to restore it!


Roger Koh
[email protected]