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UK Floor Cleaning Forum => Carpet Cleaning Forum => Topic started by: rich123 on April 11, 2013, 07:09:19 pm

Title: White tidemark/residue on cotton sofa?
Post by: rich123 on April 11, 2013, 07:09:19 pm: Hi all,
I posted this in the wrong section, so I'll try again in the right one.
Wondering if any of you experts out there can give me some advice.
I'v just cleaned a grey high cotton content habitat sofa.
Now its dried, in a few places there appears to be white lines or
tide marks, which show a treat on dark grey.
They look like drying residue marks.
I cleaned using a Sapphire hand tool with Prochem gold as a prespray,
and extracted with warm water using Prochem fibre and fabric rinse
in the extraction tank.
Never had this issue before.
I don't want to make it worse by messing with it.
Did I not use a high enough measure of fibre rinse?
What did I do wrong??
Has anybody got a solution to remove them please??
Rich
Title: Re: White tidemark/residue on cotton sofa?
Post by: Andrew@Approved Carpet Cleaning on April 11, 2013, 07:17:49 pm: had a very similar thing with a very dark grey cheapy sofa, went back, cleaned it again with acid rinse again, and dried it with an air mover and hair dryer, no problem after that
I suspect its a kind of wick back. But the more experienced gurus will either shoot me or confirm this.. ;D
Title: Re: White tidemark/residue on cotton sofa?
Post by: Paul Moss on April 11, 2013, 07:25:26 pm: Its either wick back from what ever is in the foam backing or wick back from chem.
Title: Re: White tidemark/residue on cotton sofa?
Post by: rich123 on April 13, 2013, 10:09:35 am: Thanks for your answers, il see how it goes
Title: Re: White tidemark/residue on cotton sofa?
Post by: Derek_Walker on April 13, 2013, 10:59:27 am: It could possibly be sizing in the fabric or the hardness of the water in your tank. Either way rinse again with an acid rinse or spray with distilled water and extract, then dry as quickly as possible.
Title: Re: White tidemark/residue on cotton sofa?
Post by: feldon on April 13, 2013, 01:38:02 pm: Try

" Haitian Cotton Cleaner Powdered (Chemspec)"
Title: Re: White tidemark/residue on cotton sofa?
Post by: Shaun_Ashmore on April 13, 2013, 03:07:38 pm: I'd go with an acid rinse and a very quick dry it could be that certain areas that have been cleaned more have dried out and left these lines, acid rinse with a gentle wipe with a towel then dry extract and a turbo dry should do it.

Shaun
Title: Re: White tidemark/residue on cotton sofa?
Post by: Carpet Solutions on April 13, 2013, 05:42:08 pm: Quote from: Paul Moss on April 11, 2013, 07:25:26 pm
Its either wick back from what ever is in the foam backing or wick back from chem.

I've heard of 'wick back' on carpet due to the jute backing, however, I've never heard of it on a fabric before, how is that possible?
Title: Re: White tidemark/residue on cotton sofa?
Post by: Paul Moss on April 13, 2013, 05:46:53 pm: Quite easy really, if the foam has any contaminants in it, then wicking to the surface and into the fabric will occur on drying.
Title: Re: White tidemark/residue on cotton sofa?
Post by: rich123 on April 13, 2013, 07:58:19 pm: Rinsed again with clean water and fabric rinse, dried quicky with the missus Nicky Clarke hairdryer (you burn it out, you buy me a new one), looks alot better, though still showing a paler grey where I wet it and dried it than the rest of the suite.
I'll be more careful next time.
Am I safe to stainguard this material now??
The sofa makes me nervous!
Title: Re: White tidemark/residue on cotton sofa?
Post by: Shaun_Ashmore on April 14, 2013, 11:51:22 am: May need a 2nd application of acid rinse then yes it's fine to protect.

Shaun
Title: Re: White tidemark/residue on cotton sofa?
Post by: Paul Moss on April 14, 2013, 12:16:41 pm: Quote from: rich123 on April 13, 2013, 07:58:19 pm
Rinsed again with clean water and fabric rinse, dried quicky with the missus Nicky Clarke hairdryer (you burn it out, you buy me a new one), looks alot better, though still showing a paler grey where I wet it and dried it than the rest of the suite.
I'll be more careful next time.
Am I safe to stainguard this material now??
The sofa makes me nervous!

You have prob reduced some of the dye in that area and thats why it looks lighter, leave alone now if its nearly there.
Yer just spray your protector on as normal, if your applying it dry then it will be best to mist the suite first with a very mild acidic spray.
Title: Re: White tidemark/residue on cotton sofa?
Post by: rich123 on April 14, 2013, 12:18:29 pm: Great, thanks for all the advice. :)
Title: Re: White tidemark/residue on cotton sofa?
Post by: garybristow on April 17, 2013, 08:57:36 am: i presume you wetted out the whole area?
gary