Looks nice Matt! Have you tried a first wash with Orvus? How are you soaking the paper in he Cal Hydrox---Spray on? Or a complete immersion bath in a tray? How long are you letting the poster soak either way with the Cal Hydrox?
That bottom right stain on the Marilyn might need the bleach-looks like a tough one. The tough stains I had were on the one lobby which seemed to have a "grease" like element to them-they wouldn't deacid or bleach out.
Btw-are you blotter-drying them? They look nice & flat after a washing!
Isopropanol is 99% alcohol (not for David use) I use it at work to clean fibre optic cores before splicing them to pig tails......get with the programme Dave!
My calcium hydrochlorite arrived today. So I spot bleached the poster. Pretty pleased with the outcome and learnt a few things on the way. Probably used to much in the blue area up top left. The poor poster ahs been washed a few times now. A few more tears and tiny holes but I'm extremely happy nonetheless.
I dry it right where it is. On carpet tiles that are very flat. Turn on my ceiling fan to low. That way there is air virtually around the whole poster and it dries very evenly.
Fark Matt thats fantastic! Doesn't need backing..am liking the clean and press..so you basically washed it and rollled onto hollytex to dry..details gurrlllllfrannddd!
Comments
That bottom right stain on the Marilyn might need the bleach-looks like a tough one. The tough stains I had were on the one lobby which seemed to have a "grease" like element to them-they wouldn't deacid or bleach out.
Btw-are you blotter-drying them? They look nice & flat after a washing!
Yep, I'll give that a go today.
Thanks Charlie!
Not much luck with the latest wash. Just a bit more dirt came out.
My calcium hydrochlorite arrived today. So I spot bleached the poster. Pretty pleased with the outcome and learnt a few things on the way. Probably used to much in the blue area up top left. The poor poster ahs been washed a few times now. A few more tears and tiny holes but I'm extremely happy nonetheless.
First old photo
How are you drying them? If here not getting mounted? A press between glass & time dry?
Thanks guys!
I dry it right where it is. On carpet tiles that are very flat. Turn on my ceiling fan to low. That way there is air virtually around the whole poster and it dries very evenly.
basic article on paper and deacidification. related mostly to book paper, but basics still apply.
http://www.rsc.org/education/eic/issues/2013March/paper-conservation-cellulose-acid-hydrolysis.asp
Had to do some extra spot bleaching to get the two heavy stains above and below "Robot"
Thanks fellas.
@Sven Dried it on my carpet tiles with the ceiling fan on low.