[Alt-photo] Re: Q FOR SERDAR was LANA AQUARELLE; ACIDIFY?

[BOB KISS]

DEAR SERDAR,
	From your statements below saying that acidification was not
necessary for albumen prints, can I assume that it would not be necessary
for salt prints either?
		CHEERS!
			BOB

-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org
[mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf Of
Serdar Bilici
Sent: Thursday, May 30, 2013 3:00 PM
To: alt-photo-process-list at lists.altphotolist.org
Subject: [Alt-photo] Re: LANA AQUARELLE; ACIDIFY?

Hi Bob,

I have recently tried sullivan's traditional cyanotype formula(includes
oxalic acid and amm. dichromate) with sulfamic acid treated papers and the
results were dramatically better compared to untreated/buffered papers.

If you are doing new cyanotype (Mike Ware's formula), sulfamic acid
treatment (de-alkalising procedure) is a necessary step.

I guess acid treatment/de-alkalizing is a must for pt/pd process with
lanaquarelle paper.

It won't be necessary for albumen.

Regards
Serdar

-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org
[mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf Of
BOB KISS
Sent: 30 Mayıs 2013 Perşembe 21:45
To: alt-photo-process-list at lists.altphotolist.org
Subject: [Alt-photo] LANA AQUARELLE; ACIDIFY?

DEAR LIST,

            I just bought some of what B&S calls Lana Aquarelle 140 lb from
B&S.  The info sheet in the pack says that it should be acidified.  Is this
the same paper to which many of you refer as Lanaquarelle?  

            I print mostly pt/pd, cyano, salt and albumen.  For which (or
all>) of these processes should the paper be acidified?  I just bought 
all>an lb
of sulfamic acid from a local chem supplier so, "Have sulfamic.  Will
acidify!" if necessary.

                        THANKS!

                                    CHEERS!

                                                BOB

 

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