Experimental analysis of the thermoplastic film embossing process

Abstract

Film embossing is a mechanical process in which ajlat film is transformed into an

Computer simulation of the film blowing process incorporating crystallization and viscoelasticity

“…According to the Neumann-Stefan theory, the crystallization front forms a solidified layer that moves towards the direction of higher temperature in the film [Janeschitz-Kriegl et al (1995)]. The observation regarding baxis orientation is consistent with the measured orientation by , , Haber and Kamal (1992), and Krishnaswamy and Sukhadia (2000).…”

“…Kamal et al (1988) and Haber and Kamal (1992) used Wide angle X-ray diffraction, infrared spectroscopy, sonie modulus, birefringence, differential scanning calorimetry, density column, and tensile tests to characterize LDPE films blown at two different blow-up ratios: 4 and 2. The thickness was kept constant for these samples.…”

Embossing of Polyester Film Laminated Steel.

“…3) Different from polyvinyl chloride coated steel, the crystalline polymer like polyester is sensitive to the heat because the crystallization of polyester will lead to the degradation of polyester film. Therefore, non-heated polyester film laminated steel has been tried to emboss the film surface with heated emboss roll in our laboratory instead of embossing the heated steel with the cool roll.…”