Leather Urine Killer-2.1 by Leather Doctor is a urine odor eliminator remover that neutralizes the ammonia and alkaline phosphorus salt found in urine.
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How Does Urine Killer-21 Work?
Urine Killer-21 works by neutralizing the ammonia and alkaline phosphorus salt found in the urine from 'reverse-tanning' the leather.
The sour odor dissipates when the solution is completely dried.
What does Urine Killer-2.1 Work On?
Urine Killer-21 works on all leather types that includes Vachetta, Nubuck, pigmented, aniline, hair-on, and woolskin contaminated with urine odor.
What is Urine?
Urine is a compound waste discharge, comprises of urochrome, uric acid, and ammonium salt to deal with.
When Urine Odor becomes Present?
When deposited, urine attracts the natural bacteria from the atmosphere and starts to ferment, a putrid odor will develop from the protein component of the urine and an ammonia odor will develop from the ammonium salt.
How does Urine Denature Leather?
When ammonic odor becomes present, the pH of the contamination would have shifted to 10.
Such high pH above the neutral average of 3 to 5 of leather causes the amphoteric protein fiber to shift ionic negative (-ve); that causes the protein fibers to repel its other ionic negative (-ve) constituents like the tanning agent, fatliquor and dyestuff.
Behaving just like the attraction of a magnet, 'like poles repel'. When the leather constituent breaks the hydrogen bonds with the protein fiber, the leather starts to denature and revert to rawhide.
What is the Effect of an Aged Urine?
A typical appearance of an aged or compounded contamination is a darkening effect from the fugitive tanning agents and a whitening effect from the fatliquor.
Fugitive dyestuff or bleeding is only apparent from a white towel detection and yellowing from the urochrome.
The denaturing or reverting to the rawhide effect of the leather is further confirmed by tackiness or in the worst-case sliminess in the presence of moisture.
The leach-out fatliquor results in stiffness and fugitive dyestuff results in discoloration.
How to Decontaminate Urine Stain?
A systematic sequence of decontamination approach includes surface residue removal with Urine Cleaner-1.5, rinse with Acidifier-2.0 recharging the protein fiber ionic positive (+ve), and neutralizing the ammonium salt with Urine Killer-2.1.
How to Control Bacteria and Mold Growth?
Utilizing such a low pH treatment retards bacteria activities from off-gassing putrid odors, a natural pH control without the need to use bactericide or fungicide for mold prevention.
Therefore, urine is a type of soiling that will require a biochemistry approach to decontaminate it.
In extreme cases Mold Killer-3.6 is recommended
How to Purge Urine Contamination?
Urine contamination is purged with Hydrator-3.3 which has ionic positive charging abilities, and active surfactants essential for foreign water movement within the interfibrillar spaces to redistribute the leather constituents and purge urine contamination to the surface.
What is the Final Wet Cleaning Process?
The final wet cleaning process within the leather structure is to remove the suspended yellowish compound through white wettable tissue paper as an extension of the leather surface in the wicking process as the leather dries naturally.
When to Commence Fatliquor Replenishing?
Fatliquor replenishing commenced once the dried wettable tissue paper shows without a trace of the urine stain.
How Fatliquor Works?
Fatliquor-5.0 emulsified fat and oil-encased water molecule breaks free when hydrogen bond attraction takes place between the fat and oil with the protein fiber, leaving a breathing space essential for leather transpiration to function naturally.
The fat plumps the leather with fullness from easily collapsing into creases and wrinkles during stress or flex, while the oil lubricates the fibers so that they slide over one another like millions of interconnecting hinges with smoothness.
One important unique characteristic of leather is suppleness with strength and much depends on the fatliquor, in this holistic approach to effective leather urine decontamination and restoration.
For severe neglected cases with finishes damages as seen in this picture, refinishing commences after leather suppleness restoration.
See our help and support forum: http://www.leathercleaningrestorationforum.com/forum/showthread.php?8144-Aniline-Dog-Urine-Stain-How-to-salvage-this-1940%92s-French-Aniline-Leather-Sofa-set-from-dog-peed
Leather Urine Damage Restoration and Refinishing with Leather Urine Killer-2.1 system
How to Prepare for Cleaning?
1- Dry soil is removed using a leather eraser for smooth leather and nubuck, and use a suede eraser for suede.
2- The surface soiling is removed first using Clean Urine-1.5 followed by Acidifier-2.0 with appropriate bush agitation and towel extraction.
How to Apply?
1- Spray and saturate Urine Killer-21 sufficiently deeper than the urine penetration with the help of brush agitation.
2- Dwell for 10 to 30 minutes for a chemical reaction then extract until the towel shows clean.
3- Rinse until towel shows clean to a healthy squeak with Rinse-3.0.
4- Control mold activities with Mold Killer-3.6 as an option in extreme cases.
1- To remove foreign contamination from within the leather structure, use Hydrator-3.3.
2- To rejuvenate to soften and strengthen the leather structure, use Fatliquor-5.0 or Leather Scent Fatliquor-5.5.
3- To impart a classical leather scent to mask the finish, use Protector-B+, D+, S+, or W+.