Sunshine Coast Professional carpet pet urine & odor removal

Unless treated immediately, urine deposits in carpets and fabrics are alkaline in nature. As the urine dries and ages, it changes from its initial acid state, to form an alkaline crystal. These crystals trap bacteria (E-Coli) and contribute toward the evident stain. Removing these urine crystals is essential if the urine treatment is to be effective.

The most effective urine treatments are acidic and neutralize the alkaline crystals allowing them to be removed together with much (or all) of the stain and the odour causing bacteria. Bio-enzymes are also very effective and are particularly effective when odour is the main concern. However, they do take longer to act and are preferred by in-house users.

Urine spot treatment can be broken down into two principal divisions, which if understood will make urine spot treatment dramatically more successful.
Odour Removal – The mal-odour associated with urine is caused by ammonia and bacteria. By neutralising and removing the urine crystals, the ammonia source is removed and the odour causing bacteria are destroyed or released to being flushed away.
Stain Removal – The stain caused by the urochrome in urine is often effectively removed by using the correct acid chemistry. However, some stains will only respond to the bleaching action of Hydrogen Peroxide. Furthermore, some urine spills (particularly on wool) will have permanently damaged the carpet fibre and the stain cannot be removed.

Once dried, urine typically has a pH of 11 – 12. This highly alkaline pH is damaging to both the wool fibre and can destabilise the dye bonds on wool and nylon fibres. Wool and nylon are dyed in an acid medium and alkalinity weakens the dye bonds. This is one of the reasons carpet professionals use an acid rinse to when cleaning wool to ensure that the carpet is left in a slightly acidic state.

With the wool carpet fibres being in contact with the urine contamination over an extended period, the dye bonds are significantly weakened. However, the dye stays in place and the carpet colour does not necessarily change. When a cleaning process takes place to clean the carpet or remove the urine stain the dye bonds are too weak to retain the colour and the dye is flushed away with the soiling and a “bleached” or discoloured area appears.

So it is important to note that the bleached appearance is as a result of the urine not the cleaning process of solution.

Please see below extract from The WoolSafe Institute document on “Rug Discolourations from Urine.”

When the fabric has been stained or discolored from the pet urine, it takes a lot of time and effort to attempt to reverse the damage.
Why? . . Because urine components have the ability to stain (dye) and/or bleach (discolor) fibers, especially fibers like nylon or wool. Don’t forget, when theses fibers are manufactured they are contact-dyed with acid dyes. When urine, faeces or vomit are first excreted from the body, they are highly acidic, just like the dye solution used to fix color on nylon and wool fiber. If customers act quickly, removing urine’s yellowish stain can be accomplished with almost any cool, neutral detergent solution. If they don’t act quickly – and who has time to follow their animal around all day – then more complex oxidizers and professional techniques usually are required to remove the stain. Keep in mind also that the color of the stain can be affected by the age of the animal, the amount of water, and food or medications it has ingested.
Further, if the contaminating substance has not been diluted, neutralized and extracted quickly, then as bacteria in the urine multiplies and produces enzymes, the deposit becomes highly alkaline (smells like ammonia, doesn’t it?), and actually “bleaches” color from fibers. It’s the ammonia that causes the loss of color in rugs, not necessarily the presence of the yellow pigment in the urine itself. The loss of dyes caused by prolonged exposure to ammonia is another story entirely. Don’t make the mistake of thinking that the yellow color can be removed with a simple cleaning solution. Correcting color loss caused by alkalinity can only be accomplished by adding color or spot dyeing fibers.