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screen printing => Tips and Tricks to Share (Please don't ask questions here) => Topic started by: tonypep on July 14, 2011, 10:04:42 AM

Title: Clip of the week.....Holographic Foil
Post by: tonypep on July 14, 2011, 10:04:42 AM
This actually two different foils on one application. Its impossible to show with a still camera but the larger area at the bottom actually changes color from teal to purple depending on the viewing angle. I have a tip or two for doing large areas of foil if anyones interested.
Title: Re: Clip of the week.....Holographic Foil
Post by: Denis Kolar on July 14, 2011, 10:20:58 AM
Picture?
Title: Re: Clip of the week.....Holographic Foil
Post by: tonypep on July 14, 2011, 10:27:43 AM
Its coming Pierre is putting it together
Title: Re: Clip of the week.....Holographic Foil
Post by: Frog on July 14, 2011, 10:36:04 AM
How does this hold up in the wash?

I'd like to see a pic of it after ten launderings.

Do you use a similar color underneath?
Title: Re: Clip of the week.....Holographic Foil
Post by: tonypep on July 14, 2011, 10:57:01 AM
I will do that Frog......shirt is five ys old never washed so we'll see. One reason large areas of foil don't hold up well in the wash is improper application. I've several tips on how to do this but heres my spin. There is no one ink/screen application that is truly optimum. I've seen tips on using 200 micron cap film but that results in blurry edges and when you try this on large areas you can experience concave doming which results in uneven release of the foil. What you want to look for after you release the foil is absolutey zero residue on the carrier sheet. Many experience residue usually in the form of the shirt weave pattern. Which is why many use red under red foil etc. When I first experienced this I stumbled upon a solution that proved immediately succesful and easy. The foil image is printed through a relatively tight 160 mesh screen using a high density clear (no cap film). The image is flashed and the gelled ink has pretty much fill the wales of the weave. But not completely. The shirt is brought back around under the exact same screen and printed a second time. This second kiss seals the deal. We now have a very flat, even, shiny surface for optimum adhesion.
Title: Re: Clip of the week.....Holographic Foil
Post by: blue moon on July 14, 2011, 11:00:24 AM
I will do that Frog......shirt is five ys old never washed so we'll see. One reason large areas of foil don't hold up well in the wash is improper application. I've several tips on how to do this but heres my spin. There is no one ink/screen application that is truly optimum. I've seen tips on using 200 micron cap film but that results in blurry edges and when you try this on large areas you can experience concave doming which results in uneven release of the foil. What you want to look for after you release the foil is absolutey zero residue on the carrier sheet. Many experience residue usually in the form of the shirt weave pattern. Which is why many use red under red foil etc. When I first experienced this I stumbled upon a solution that proved immediately succesful and easy. The foil image is printed through a relatively tight 160 mesh screen using a high density clear (no cap film). The image is flashed and the gelled ink has pretty much fill the wales of the weave. But not completely. The shirt is brought back around under the exact same screen and printed a second time. This second kiss seals the deal. We now have a very flat, even, shiny surface for optimum adhesion.

ahhh, very cool. I have been doing something similar and getting pretty good results, but could not really tell why. This makes sense!
Now that I know, I'll pay closer attention to it.

Thanx Tony!
Title: Re: Clip of the week.....Holographic Foil
Post by: Frog on July 14, 2011, 11:07:46 AM
So, I guess that also answers that you guys do not see an advantage of using a similarly colored "adhesive".

Title: Re: Clip of the week.....Holographic Foil
Post by: Fresh Baked Printing on July 14, 2011, 11:35:45 AM
I printed  some Gold plastisol once, based on that I was told that plastisol can be used as foil adhesive and that a similarly colored "adhesive" helps hide the imperfections as the foil eventually starts to flake away. I used Union Ultrasoft and for the life of me, I could not get it to act like an adhesive. I eventually just used a real foil adhesive and the foil adhered beautifully.
Is there a technique on using plastisol  ink as an adhesive that I'm missing?
Title: Re: Clip of the week.....Holographic Foil
Post by: Frog on July 14, 2011, 11:43:34 AM
I'd say, don't use metallics! Use a tan or yellow that just gives the impression of being similar.
I'm pretty sure that the actual metal powder is reducing the "stick" On the other hand, if you didn't want the foil to adhere there, you know what would happen. lol!

But hey, I certainly defer to guys like Tony on this. The closest I've come to this technique was when I worked in an engraving embossing shop working on paper.
Title: Re: Clip of the week.....Holographic Foil
Post by: ZooCity on July 14, 2011, 04:30:02 PM
Rad Tony.  We don't do foil b/c no one has ever requested it.  (we're a little behind the times out here, fashion trend wise, or maybe just on our own time).

Do you apply your foil in-line?   That always seemed like a clever way to go about this to me.