Emulsion / Film / Stencils

How To Coat Mesh With Capillary Film

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How To Coat Mesh With Capillary Film

How To Coat Mesh With Capillary Filmby Richard Greaves ASPT - Lawson Screen ProductsFig. 1 Courtesy of Autotype Americas Capillary film is direct emulsion coated at the factory onto rolls of ultra smooth clear polyester film. The factory dries and re-coats the film until the desired thickness is achieved. They have very special equipment to dry the film so there is only enough moisture to keep it from breaking when it ships. No screen maker can make a stencil, as smooth as capillary films because they coat on the very irregular surface of meshes, not the smooth face of polyester...

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Choosing a Stencil System

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Sizing Up Stencil SystemsArticle Author: Heather B. Fried Publication Name: PrintwearPublication Date: 03/01/2010As the digital era furthers its reaches to touch and transform more aspects of everyday life, those in this and every industry are faced with options to stick it out with the old or take a chance on the new. The latter represents a potential lapse in productivity at the outset in exchange for efficiency down the line, whereas already installed and reliable machinery may continue to meet the basic needs for which it was purchased. Digital developments in stencil making have produced a computer-to-screen alternative to conventional methods...

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Building Thick Film Stencils

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Building Thick Film Stencils

Building Thick Film Stencils for High Density Printing Recently we've received numerous inquiries regarding producing very thick stencils used to print a special effect referred to as "high density printing." Although you should check with your ink manufacturer for guidance regarding stencil thickness, specialized inks and printing techniques, we offer the following general tips to assist you in obtaining results of the highest standard. Several approaches can be used to create stencils ranging from 150 to possibly even 700 microns. One is to "cast" a direct emulsion of the desired thickness. This is accomplished by coating a coarse screen with...

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How To Coat A Screen With Emulsion

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How To Coat A Screen With Screen Printing Emulsion or Capillary Film by Douglas GrigarDownload Full PDF Article...Printwear's annual how-to issue is a great resource to keep on hand year-round to refer to as you enhance your garment printing business. It can also be a good tool to help you get back to the basics, such as applying a photo stencil.This guide will present one method for each top methods that are widely applicable to the available products. One disclaimer is that specialty products, such as thick, heavy-coating liquid emulsions and special-purpose capillary films may require alternate methods. Be sure...

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Direct Emulsion Troubleshooting Checklist

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Direct Emulsion Troubleshooting Checklist Problem Possible Cause Solution Poor definition (edge sharpness) or "sawtoothing" (irregular printing edge) Poor contact during exposure Check vacuum Underexposure Perform Step Wedge Test Light scattering Use dyed fabric Insufficient washout Wash from both sides Poor buildup of emulsion Improve coating technique Fabric too coarse Use higher mesh count Stencil softness Improper mixing of sensitizer Dissolve sensitizer thoroughly, mix well with emulsion Underexposure Perform Step Wedge Test Emulsion too old Review storage guidelines Positives "yellowed" Use new positives Excessive hummidity De-humidify area, increase exposure Open-area "haze" Positives lack density Use new positives Poor contact during exposure...

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