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Howdy,
I've recently been introduced to the vegetable oil method of creating transparencies. In the past i've only used standard and oversized inkjet trans. Before I start running tests I was curious if anyone out there has any experience with the process. I have two questions:
1) How would you rate the overall quality of the stencil? With proper exposure times will this method reproduce the image accurately?
2) Do vellum trans. differ in exposure time compared to a standard trans.? {Im using (2) 500W halogen work lamps}
Any help or insight is greatly appreciated!
Thanks,
Plutis Von Doodman
I've recently been introduced to the vegetable oil method of creating transparencies. In the past i've only used standard and oversized inkjet trans. Before I start running tests I was curious if anyone out there has any experience with the process. I have two questions:
1) How would you rate the overall quality of the stencil? With proper exposure times will this method reproduce the image accurately?
2) Do vellum trans. differ in exposure time compared to a standard trans.? {Im using (2) 500W halogen work lamps}
Any help or insight is greatly appreciated!
Thanks,
Plutis Von Doodman
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Re: Kinkos + Vegetable Oil = ?
Tue, May 2, 2006 - 3:04 PMwhat is the vegetable oil method? -
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Re: Kinkos + Vegetable Oil = ?
Wed, May 10, 2006 - 7:56 AMThat is where you take a regular photocopy of your image and make it transparent by coating it in vegetable oil.
I participated in a d.i.y. workshop at my place where a guy showed us how to use this method..we coated the image in oil so that it was semi-translucent and put it on glass.
The end results were unsatisfactory.
Then i tried it again on my own and again it did not come out well at all.
Everything else I did as if I was using a regular transparency.
I would expect that maybe exposure time would need to be longer since the image is not totally clear.
I would like better specific instructions from someone who has used the vegetable oil method successfully because obviously I was not doing it right. -
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Re: Kinkos + Vegetable Oil = ?
Sat, May 13, 2006 - 9:13 AMoh. yah. that doesnt sound like it work that well.
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Re: Kinkos + Vegetable Oil = ?
Tue, May 16, 2006 - 5:27 PMI almost only used that method (oiled photocopies) when I was at school, but there we had a vacume light table for exposing and it worked great, I never had a problem with it. I'm putting together a home studio right now and so I don't know how well it'll work w/o the vacume table yet.
The only tip I have is use crappy paper and try to get a dense ink concentration, we found that kinkos wouldn't work as well as say a crappy library photocopier b/c they have heavier/nicer paper and the library is cheap. This is a strange fact but actually makes a difference.
mary
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Re: Kinkos + Vegetable Oil = ?
Thu, August 10, 2006 - 2:59 AMIn the silkscreen studios at MassArt, the oiled paper technique is used all the time. They have 2 tables set up just for oiling.
The keys to getting good results include, as someone mentioned before, using a thinner paper. But also—more importantly—using a photocopier / printer that lays down a good solid layer of toner. If the toner is grayish and weak, too much light will get through.
The Kinko's in Copley Square used to have a really good oversize black and white printer that could do prints 36" wide as long as you need (from a roll of paper). They recently replaced the machine though with one that does the same size, but lays weak toner, so it's not as good.
The Kinko's in Harvard Square still has a good printer though that will do the same size. The roll paper they use is great too because it's kinda thin (unlike their normal 11 x 17 laser printer paper, which is way thick). The prints are pretty cheap too; about $1 per square foot.
Another key is to make sure the paper is thoroughly oiled. You can't just dip the paper, which would be way messy anyways. It's best to drip oil on and rub it in to the paper with a rag, making sure that the paper is soiled all the way through.
Exposure time does need to be adjusted slightly. With the big vacuum light table at MassArt, it takes 3.5 minutes to burn a screen with a transparency, and 4 minutes with oiled paper.
Never tried with vellum before though.
If you do everything right, you can get results comparable to transparencies. I've used the method to print halftones, and the results were just fine.
