A study on the laser curing of acrylic resin for the application in screen printing

✍ Scribed by Jeong Soo Kim; Jae-Hwan Lee; Jeung-Ho Park; You-Hie Han

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 138 KB
• Volume: 73
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19990725)73:4<515::aid-app7>3.0.co;2-h

✦ Synopsis

For the development of an economic, automated, and computer-aided manufacturing process of screen for textile printing, photocuring of acrylic resin by an argon ion laser was studied. A commercially available polyurethane-acrylate resin was selected as a test resin for the representative study on laser curing behavior. The photoreaction by laser was observed by infrared spectroscopic analysis of vinyl group. With 1-W input power, the degree of curing increased linearly with exposure time, which reached, however, a plateau with exposure time of more than 4 s. The curing reaction could be characterized in an S-shaped curve due to the combined effect of oxygen inhibition at lower power and photon saturation at higher power. The viscosity of acrylic resin could be controlled by addition of water as diluent without any significant drawback in curing speed.