Optimization of Flexographic Water-Based Ink Formulation for Polymer Films

Ha, Nguyen Thi Thu; Quyen, Duong Hong; Nguyen, Huyen

doi:10.32628/ijsrset21831

Cited by 1 publication

(2 citation statements)

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“…Depending on the type of end use of the ink, they use such additives as waxes, anti-foaming agents, anti-perforation agents, anti-slip agents, plasticizers, dispersants, wetting agents, and others. Water is used as a solvent, with possible additions of other solvents not exceeding 5% of the ink composition [18,19].…”

Section: Introductionmentioning

confidence: 99%

“…Although work on optimizing the formulation of water-based inks and the effect of various additives on print quality is being carried out in many research centers [2,7,19,21,46,47], the problem of optimal ink selection for film substrates, due to the complexity of the issue and the number of interacting factors, still requires further research. To the authors' knowledge, there has been no research on the use of aminopropyltriethoxysilane in the composition of flexographic water-based ink to improve printability and adhesion, which was realized in the present study.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Aminopropyltriethoxysilane on the Adhesion of Flexographic Water-Based Ink to Packaging Films

Izdebska-Podsiadły,

Napiórkowska

2023

Coatings

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Plastic films are widely used in packaging, where high-quality printing on their surface is required. When printing on films, particularly with water-based inks, problems arise with proper ink adhesion to the substrate. As part of the ongoing research, formulas of flexographic water-based inks were developed, where aminopropyltriethoxysilane was used in various amounts as an adhesion promoter, its effect on the adhesion of inks to three types of films commonly used in packaging was determined, and the quality of prints was examined. The research included the tape test, the T-peel test, and the abrasion-resistance test, as well as measurements of the pH of the inks, contact angles, and optical properties of the prints and their gloss. As a result of the study, the type of film was found to be crucial to the effect of aminopropyltriethoxysilane on the adhesion of flexographic water-based ink to the substrate and print quality. An addition of 1.0%–1.5% makes it possible to achieve the best adhesion improvement (bonding strength increased by about 26, 35, and 102% for PE, BOPP, and PET films, respectively) while improving print quality—increasing the optical density of prints and their gloss. However, the use of 1.5% silane in ink has a significant impact on the color of the ink (∆E ranging from 2.2 to 7.8 depending on the film). The amount of the additive used (0.5 to 1.5%) of aminopropyltriethoxysilane in the ink would need to vary depending on the type of film to be printed.

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Section: Introductionmentioning

confidence: 99%