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Statistical Modelling of Print half-tone mottle in PET-G and PVC Shrink Films

Akshay V. Joshi   ORCID icon orcid.org/0000-0002-8733-1747 ; Department of Printing Engineering, P. V. G’s College of Engineering and Technology, 44, Vidyanagri, ShivdarshanPune- 411009, Maharashtra, India.

Puni tekst: engleski, pdf (1 MB) str. 15-24 preuzimanja: 191* citiraj
APA 6th Edition
V. Joshi, A. (2016). Statistical Modelling of Print half-tone mottle in PET-G and PVC Shrink Films. Acta graphica, 27 (3), 15-24. Preuzeto s https://hrcak.srce.hr/174568
MLA 8th Edition
V. Joshi, Akshay. "Statistical Modelling of Print half-tone mottle in PET-G and PVC Shrink Films." Acta graphica, vol. 27, br. 3, 2016, str. 15-24. https://hrcak.srce.hr/174568. Citirano 26.09.2020.
Chicago 17th Edition
V. Joshi, Akshay. "Statistical Modelling of Print half-tone mottle in PET-G and PVC Shrink Films." Acta graphica 27, br. 3 (2016): 15-24. https://hrcak.srce.hr/174568
Harvard
V. Joshi, A. (2016). 'Statistical Modelling of Print half-tone mottle in PET-G and PVC Shrink Films', Acta graphica, 27(3), str. 15-24. Preuzeto s: https://hrcak.srce.hr/174568 (Datum pristupa: 26.09.2020.)
Vancouver
V. Joshi A. Statistical Modelling of Print half-tone mottle in PET-G and PVC Shrink Films. Acta graphica [Internet]. 2016 [pristupljeno 26.09.2020.];27(3):15-24. Dostupno na: https://hrcak.srce.hr/174568
IEEE
A. V. Joshi, "Statistical Modelling of Print half-tone mottle in PET-G and PVC Shrink Films", Acta graphica, vol.27, br. 3, str. 15-24, 2016. [Online]. Dostupno na: https://hrcak.srce.hr/174568. [Citirano: 26.09.2020.]

Sažetak
PVC and PET-G (Glycol modified polyethylene terephthalate) have the highest consumption in the shrink sleeve market due to its high shrink abilities and cost effectiveness. The reproductions of fine tone details on these films are challenging as the occurrence of graininess and image-noise results in print defect such as print half-tone mottle. The presence of print half-tone mottle is visually disturbing leading to wastage of ink, substrate and time. The purpose of this study is to investigate the effect of gravure process parameters viz. ink viscosity, press speed, impression hardness and line screen and develop statistical model for print half-tone mottle in shrink films. The base line for print half-tone mottle was determined by conducting production runs on press with a defined set of process parameters and the target was set to minimize it from the baseline. The half-tone area was scanned and processed through SFDA algorithm to calculate print half-tone mottle. The design of experiments (DOE) was generated for above-mentioned process parameters and was analysed by analysis of variance (ANOVA) to find the significant factor affecting the print half-tone mottle. The analysis revealed line screen, viscosity and hardness as significant factors in minimizing print half-tone mottle. The results showed minimization of print half-tone mottle by 28% for both PVC and PET-G films. Furthermore, regression model was developed and validated for print half-tone mottle and a correlation coefficient (R2) of 0.8696 and 0.879 was achieved for PET-G and PVC respectively. The proposed model is helpful in determining the impact of gravure process parameters and prediction of print half-tone mottle in shrink films.

Ključne riječi
Shrink films; Print half-tone mottle; DOE; ANOVA; Regression model

Hrčak ID: 174568

URI
https://hrcak.srce.hr/174568

Posjeta: 258 *