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Photo Forum / Film Photography / Darkroom / May 2005Printing on a Tin/metal.
How do you Print an image onto Tin plate? using the darkroom enlarger. Do I have to buy any other developing solutions other thatn the normal one's Thanks for any advice. > How do you Print an image onto Tin plate? using the darkroom enlarger. Do I > have to buy any other developing solutions other thatn the normal one's Hi, You can buy liquid emulsion that you can paint onto various surfaces. If I was going to do what you're planning, I'd seal the tin first so it wouldn't react with the processing chemicals, maybe with some laquer or something like that. I doubt that you'd have any problems using uncoated tin though, because it doesnt stay in the processing chemicals long enough to cause problems. You'll probably need to experiment a bit before you get it right. Cheers, Scott. > You can buy liquid emulsion that you can paint onto various surfaces. If > I was going to do what you're planning, I'd seal the tin first so it [quoted text clipped - 3 lines] > enough to cause problems. You'll probably need to experiment a bit > before you get it right. I did see some instructions on etching photos onto glass. I think you painted ablumen sensitised with potassium dichromate (?) onto the glass and as some point either before or after exposure sprikled the surface with bitumen poweder to form a mask. You then etched the glass using fuming hydroflouric acid, which rather put me off. Maybe you could do something similar with your metal sheet and less unpleasent chemicals.  Signaturehttp://www.petezilla.co.uk >>You can buy liquid emulsion that you can paint onto various surfaces. If >>I was going to do what you're planning, I'd seal the tin first so it [quoted text clipped - 9 lines] > bitumen poweder to form a mask. You then etched the glass using fuming > hydroflouric acid, which rather put me off. That would definitely put me off! Firstly, it would be fairly had to get, and secondly, if you get that stuff on you, there's a good chance you wont live to regret it... Well, you will, while you sit there and wait for a heart attack, even after it's 'washed off'. You dont even need to spill that much. > Maybe you could do something similar with your metal sheet and less > unpleasent chemicals. Yeah, I reckon the paint-on emulsion is the safest. But with Tin, you could probably use many different things with the bitumen idea. Scott. > > How do you Print an image onto Tin plate? using the darkroom enlarger. Do I > > have to buy any other developing solutions other thatn the normal one's [quoted text clipped - 12 lines] > > Scott. Porter's Camera Store ( www.porters.com ) sells a "tintype photo kit" containing 5-4"x5" plates, coating emulsion, developer, fixer, and instructions, for $24.95USD. They also sell Rockland Liquid Light photographic emulsion. (Disclaimer: I have no association with Porter's. I have bought from them successfully in the past.) Ken Hart > How do you Print an image onto Tin plate? using the darkroom > enlarger. Do I have to buy any other developing solutions other thatn > the normal one's > > Thanks for any advice. You trying to do a *Jesus* on a cake tin? :-) SignatureVj >> How do you Print an image onto Tin plate? using the darkroom >> enlarger. Do I have to buy any other developing solutions other thatn [quoted text clipped - 3 lines] > > You trying to do a *Jesus* on a cake tin? :-) didn't know you was into 'Darkroom' photography Precious? You'll have to show me your equipment sometime. :-paperbag >>> How do you Print an image onto Tin plate? using the darkroom >>> enlarger. Do I have to buy any other developing solutions other [quoted text clipped - 7 lines] > > You'll have to show me your equipment sometime. :-paperbag It'll have to be :-highdensityclothbag actually :-) SignatureVj > How do you Print an image onto Tin plate? using the darkroom > enlarger. Do I have to buy any other developing solutions other thatn > the normal one's > > Thanks for any advice. You need to purchase a liquid emulsion to paint onto the surface of your metal object. This has to be done in complete darkness and dried too, I think the red safety light can be used (it will say on the instructions). The image can then be exposed and developed the same way as a print but with care. Samples need to be made for testing for exposure when printing etc. Normal developer, stop and fix can be used at the printing stage. :-) SignatureVj I use Photo Formulary Formulight Liquid Emulsion and have had great success with it on other objects but with metal you need to also buy the gelatin separator. http://www.photoformulary.com/uploads/formulight_instructs.doc and the separator: http://www.photoformulary.com/uploads/gelatine.doc IMHO if you want to do it right you should also use the Hardener. Cheers, sd >> How do you Print an image onto Tin plate? using the darkroom >> enlarger. Do I have to buy any other developing solutions other thatn [quoted text clipped - 11 lines] > > :-) This gonna be in B/W so the exposure is not critical. It's basically clock numerals and a chapter ring around the numerals. Thanks all for responding. > This gonna be in B/W so the exposure is not critical. > It's basically clock numerals and a chapter ring around the numerals. Ah, a printed look, as in ink on paper ... Someone makes a photographic paper that has a 'mirror' backing: the white parts look like smooth aluminum foil. You may want to try this stuff and just glue the finished print to the metal. If you don't need the mirror finish and a classic white clock face is OK then I would make an RC print and glue it on. Another alternative that works well is to ink-jet print the artwork on glossy/heavy ink-jet paper and then spray/dip the paper with/in Krylon lacquer so that the paper is saturated. The results is quite tough and waterproof. SignatureNicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. To reply, remove spaces: n o lindan at ix . netcom . com psst.. want to buy an f-stop timer? nolindan.com/da/fstop/ >> This gonna be in B/W so the exposure is not critical. >> It's basically clock numerals and a chapter ring around the numerals. [quoted text clipped - 15 lines] > paper with/in Krylon lacquer so that the paper is saturated. > The results is quite tough and waterproof. Sorry but I want a proffesional finish, otherwise I'm wastin me time. :-) what I'm doing is reviving the old facia/s by cleaning the face, applying a new coat of sivering with finisher then applying the photo teqnique and the sealent. Problem is I don't know wether the developing chemicals will react to the silvering process.? Gawd! must fix me dictionary. > what I'm doing is reviving the old facia/s by cleaning the face, > applying a new coat of sivering with finisher then applying the photo > teqnique and the sealent. > Problem is I don't know wether the developing chemicals will react to > the silvering process.? Buy something made of the same material and do a test. Testing is *always* the way to go with personally untried processing. SignatureVj > How do you Print an image onto Tin plate? What sort of an image are you looking for: o The "white" spaces show tin, the dark spaces are, well, dark. o The white spaces look grey when the light strikes at an angle and the tin makes up the dark portion of the image. Sort of like a Daguerreotype but called a "Tintype" for obvious reasons. o Looks like a photograph, white is white and black is black, only it is on a metal plate and not paper. SignatureNicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. To reply, remove spaces: n o lindan at ix . netcom . com psst.. want to buy an f-stop timer? nolindan.com/da/fstop/ This is a good point, Nick. The tin isn't going to be very forgiving about a continuous tone image. The "tintype" might be the ticket. It might be better to use printing technology and either treat the tin like a printing plate or else screen the image on. Some of the antique process books include tintype. It may still be possible to process it using liquid emulsions, but don't count on a gray scale. |
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