| 摘要 |
A method for embossing biodegradable resin sheets is provided to achieve superior organic solvent resistance and facilitate an embossing process. A method for embossing biodegradable resin sheets comprises a step of coating a mixture, which is obtained by adding aziridine of 5wt% to 40wt% to hydrogenous ink having no well-known pigment, on a biodegradable resin sheet(1) to form a primer layer. The biodegradable resin sheet is made of PLA(Poly Lactic Acid), PGA(Poly Glycolic Acid), PCL(Poly Caprolactone), fatty polyester resin, PHB(Poly Hydroxyl Butyric acid) or D-3-hydroxy butyric acid. The biodegradable resin sheet is subject to embossing by directly passing through an emboss(13) instead of passing through drum rollers. The emboss has the temperature of 50°C to 150°C and the pressure of 20kgf/cm2 to 60kgf/cm2. A front heater(12) has the temperature of 80°C to 200°C.
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