Garment Decorating Encyclopedia > Encyclopedia Discussion
glossary: What is a squeegee?
blue moon:
--- Quote from: tonypep on May 16, 2016, 12:48:39 PM ---In 16th century Asia the blade was often made of bamboo or wood
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so only modern squeegees are mad of PU. . .
pierre
Frog:
--- Quote from: blue moon on May 16, 2016, 12:55:45 PM ---
--- Quote from: tonypep on May 16, 2016, 12:48:39 PM ---In 16th century Asia the blade was often made of bamboo or wood
--- End quote ---
so only modern squeegees are mad of PU. . .
pierre
--- End quote ---
My first squeegees were red or black rubber, and mesh was still silk, (but that's another topic)
Orion:
--- Quote from: blue moon on May 16, 2016, 12:23:46 PM ---dos it have to be polyurethane? Could it be rubber? or PVC, or even metal?
Is it always shearing? jvanick just said it only shears when printing plastisol, but not when using it for waterbase. . . Or are we shearing waterbased inks, but also driving them in at the same time?
pierre
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You are right Pierre, it does not have to be PU, just as a fill blade (call it a flood blade if you like but don't tell Bill Hood I told you so) is not always metal. In fact on flip configured squeegee/fill I've only seen PU squeegee material used. I think the act of getting the ink through to the substrate is shear no matter what pressure is used. The squeegee marries together other more critical parameters of the process. In point, Joe's bible does not specifically discuss squeegees but ink mesh and stencil are extensively covered.
blue moon:
--- Quote from: Orion on May 16, 2016, 01:15:41 PM ---
--- Quote from: blue moon on May 16, 2016, 12:23:46 PM ---dos it have to be polyurethane? Could it be rubber? or PVC, or even metal?
Is it always shearing? jvanick just said it only shears when printing plastisol, but not when using it for waterbase. . . Or are we shearing waterbased inks, but also driving them in at the same time?
pierre
--- End quote ---
You are right Pierre, it does not have to be PU, just as a fill blade (call it a flood blade if you like but don't tell Bill Hood I told you so) is not always metal. In fact on flip configured squeegee/fill I've only seen PU squeegee material used. I think the act of getting the ink through to the substrate is shear no matter what pressure is used. The squeegee marries together other more critical parameters of the process. In point, Joe's bible does not specifically discuss squeegees but ink mesh and stencil are extensively covered.
--- End quote ---
agreed, I think we are always shearing.
pierre
Frog:
back in the '80's, I was actually shown a (questionable) technique of laying down more ink by more flood, less shear, allowing the ink to transfer partially by a capillary action pulling it through the mesh.
I never mastered it, but saw it done on athletic prints.
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