Q - Greetings, Jim.
Wonder if you would be kind enough to share your insight on this:
I have an appointment this Wednesday to attempt to clean a dime-sized blood stain on the seat cushion of a sofa.
I haven't seen the fabric yet, but the customer states that it is tan colored cotton denim. The warranty company sent her a bottle of Crypton to try, but it didn't remove the stain.
I took a look at the MSDS for Crypton, but the specific ingredients are considered trade secrets and weren't listed.
I was thinking of trying Zoop, and lowering the pH with Fab Set afterward. I'm also considering hydrogen peroxide (3%) after testing in a hidden area.
I'm not too optimistic due to the Crypton and the time lapsed. Do you know what type of agent Crypton is? Also, any suggestions on an approach?
On another note, my colleague told me he was pretty excited with the course – he definitely found it worth the time and expense to travel from NJ.
A - Hi Jeff
Thank you for passing along that Barry's experience was positive, and for referring him to us.
I worry about denim because of its tendency to fade when exposed to ANY cleaner, yet alone peroxide.
Are you authorized to rinse the fabric from seam to seam?
If so, you should rinse the fabric with clear, cool water first to remove the "Crypton". The enzyme spotter Zoop is relatively neutral, so I'd just warm it up by putting the bottle in a bucket of hot water (since its not to be diluted).
Apply the warmed product to a clean white cloth, and then blot both the blood and the surrounding area to prevent an obvious "clean mark" or fading of the denim.
(Get a waiver from the fabric manufacturer too, by the way)
Give the Zoop half an hour to work, then rinse again with cool, clear water. If that removes the spot, use a hair dryer on a cool setting.
If the blood remains, get a full release before applying 3% peroxide. Even mild 3% peroxide can lighten such a stain. Allow several minutes for the peroxide to work, then rinse the fabric again with clear water. Dry quickly again.
High pH protein spotters, such as Prochem or Bridgepoint Protein Spotter may work, but are usually between 10-11 on the pH scale, and almost always will pull color from natural fiber fabrics. Be VERY wary of such products and never use them without extensive pretesting and a release signed whatever your test results show.
I hope this helped.
Jim
