[wynne jones]

Did you use a snail to dry it?

I had a slightly similar look once down one edge and it was that the snail moved and dried slightly against the pile. It didn't brush out I had to re wet it, groom and dry again.

[Jim_77]

Ash,  it doesn't look like different appearance is caused by the cleaning process you've described.  As mentioned earlier it's either the edge that's been in front of the sofa, or that edge of the rug is a traffic lane that gets walked over a lot.

Are you sure it's not pile reversal?  Does it look light from all angles or does the light/dark contrast change depending which way you view it?  Try the pencil & paper trick if you're not sure.

[Steve. Taylor]

Ash i agree with Doug the oxibrite or the chemical used hydrogen peroxide. Percarbonate if pure with no fillers has an active available oxygen content of13% which is equivalent to 27.5% Hydrogen peroxide.

Pre mixed solutions Of Sodium Percarbonate will remain active for 5 to 6 hours, but can start to breakdown after about 30 minutes. when mixed with water at a temperature of 30o to 60o C

Always  
inspect  the rug for any pre-existing conditions. Many times, soil covers up dye or colour variations  fiber staining, prior dye bleeding, worn areas or white knots that become uncovered after the wash.

when you pick up the rug discuss any areas of concern that you have regarding the rugs, and the options. Or
any recommendations after any pre-wash "discoveries. Will save you going down this road again mate

The 2 rugs in the picture cost around 2k one silk and one persian not the sort of rug you want to mess up

[Steve. Taylor]

Forgot Persian pic

[AshWhite]

Jim, pile reversal had crossed my mind when I first saw it, Whats the pencil & paper trick?

It's not a drying issue, I noticed it as soon I had had finished prespraying as I walked around  the other side to get some equipment ready, before extraction.

The oxibrite was not from the day before, it had been mixed up about 2.5 hours from a previous job. There was a small amount left in the sprayer, and I just added PSG on top with another 1.5 litres of water, so the concentration would have been very small, and as mentioned the activity would certainly have died down somewhat.

The side of the rug with the problem was closest to the wall when I was cleaning, so I hadn't really looked at it from that side but when I did this morning, the difference paled away a massive amount (it looked exactly the same as the other side).

I think the rug new would have cost in the region of £600, so it's not quite Persian territory, but not exactly bargain basement either.

[AshWhite]

Jim, pile reversal had crossed my mind when I first saw it, Whats the pencil & paper trick?

Nevermind, I know it!

[AshWhite]

Just tried it, and the test indicates pile reversal.

[wynne jones]

So when he says you fooked my rug you say. Do you have a pen and paper? 

[Jim_77]

 

Didn't think it was anything you'd done to it.

You'd have had to mix one hell of a bucket full of oxidiser in to that pre-spray for it to have any such effect, and if there was some sort of fault with the rest of your procedure it would have been like it all over

[AshWhite]

Lol Wynne, that's my plan. I just had my old man to do the test without telling him what its for, and he had the same results. I've also put a mirror to it and it looks fine in the reflection (a bit like myself!). For all I know, he might have had the rug on the cheap because of this, or he may have had it placed in his lounge in such a way that he's never noticed.
Anyhoo, its a weight off my mind, although I will take something from the experience.

[AshWhite]

Oh, and thanks for keepin the faith Jim

Its the first time I've seen pile reveral in real life, how often would you expect to come across it? I appreciate its more prone in dense, cut pile carpets, I'm just after an approximate idea

[Jim_77]

Ash, if you've cleaned (for example) 100 carpets you've probably seen pile reversal 30 times already, just maybe not realised it or noticed it too much.

It will only affect cut pile, as loops aren't so prone to being pulled in different directions.

Trying to scrabble through my memory banks here, but I think I see it most on wool carpets but also on synthetics; polyprop particularly, and least of all on nylon which is strange because nylon holds static charge better than most fibres and it's alleged to be electromagnetism that causes pile reversal

[james roffey]

I made the mistake of not inspecting a rug "once" i had done the carpet in her house and she seemed really nice, she asked if i would clean a rug that was rolled up in her garage i just threw it in the back of the van. when i got it home i noticed that the fringes were very worn i cleaned it and returned it when i  unrolled it she claimed that i had damaged the fringes during the cleaning, she eventually paid. the amazing thing was she phoned me a couple of weeks later to clean her lounge and i told her in no uncertain terms that i was not prepared to work for her again. i had discovered that this rug was in her entrance hall so she walked over it on a daily basis so she knew it was damaged and just wanted a freeby.

[AshWhite]

Ash, if you've cleaned (for example) 100 carpets you've probably seen pile reversal 30 times already, just maybe not realised it or noticed it too much.

It will only affect cut pile, as loops aren't so prone to being pulled in different directions.

Trying to scrabble through my memory banks here, but I think I see it most on wool carpets but also on synthetics; polyprop particularly, and least of all on nylon which is strange because nylon holds static charge better than most fibres and it's alleged to be electromagnetism that causes pile reversal

To be honest, I think it's probably less common here 'cos half the carpets I clean are threadbare anyway 
I thought it was a lot less common, hence when the thought first occured to me I discounted it straightaway - although if I thought about it sensibly it makes perfect sense (not seeing it til I had vacced the back and turned it over lengthways instead of width ways, the density and pile was an ideal canditate as well I suppose)

[colin fitch]

Yes Steve T, very nice silk Turkish keyseri garden panel rug. What size is it?
The persian rug is also nice.

Ash

as already said that machine made rug you cleaned had a pre-existing condition, inspect more carefully with the next ones.

colin

[Steve. Taylor]

Hi Colin think it was a 6x9 LOL you are right about the silk turkish keyseri more of a work of art than a rug

Not your average poly prop : speaking of knots some can have upto 500 hand tied per square inch

Seems a shame to walk on them if you ask me customer has a few Oushak as well the buggers take some brushing to reset

[colin fitch]

tnx Steve T,  yes works of art, easy 500 knotts and beyond.
I like to walk around them, just in case i trod in something
Ah......the Turkish Oushak makes you work for your money.

colin