Suspension-polymerized Latex as an Additive for Surface Sizing and Its Effect on Fold Cracking of Coated Paper

Rajabi‐Abhari, Araz; Lee, Hak Lae; Oh, Kyudeok; Im, Wanhee; Lee, Jee-Hong; Lee, Soo Young; Kim, Songju

doi:10.15376/biores.13.4.7640-7653

Cited by 7 publications

(4 citation statements)

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“…White areas on the images of the coated paper samples are correlated to the surface damages that occurred during the folding process (Rättö & Hornatowska, 2010;Yang & Xie, 2011;Barbier et al, 2012;Rättö et al, 2012;Sim et al, 2012;Oh et al, 2015;Oh et al, 2016;Pál et al, 2017;Rajabi Abhari et al, 2018;Najafi et al, 2019b;Wang & Ding, 2020;Pál et al, 2021). To determine the white pixels` percentage on the digitized folded paper samples and the corresponding additional image features, an image processing algorithm has been developed with the following requirements (Sinha, 2000;Apro et al, 2011;Malek, 2012;Takemetoyo et al, 2007;Nashat et al, 2014;Goncalves et al, 2015;Sengupta et al, 2015): autonomous work, noise suppression, accurate surface damage mapping to the binary image, computationally as simple as a possible solution.…”

Section: Image Analysis and Feature Extractionmentioning

confidence: 99%

“…To reduce the negative effects of folding process, the fold cracking resistance was gaining importance and has become an active field of research. Along with the commonly used mechanical testing methods, different computer-aided assessments have been introduced lately as new techniques for quantitative surface damage characterisation (Barbier et al, 2002;Rättö & Hornatowska, 2010;Yang & Xie, 2011;Rättö et al, 2012;Sim et al, 2012;Oh et al, 2015;Oh et al, 2016;Pál et al, 2017;Rajabi Abhari et al, 2018;Najafi et al, 2019;Wang & Ding, 2020;Pál et al, 2021). These newly proposed methods are based on image processing and analysis and have similar basic concept of damage registration, digitization, and image feature calculus.…”

Section: Introductionmentioning

confidence: 99%

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Proceedings - The Eleventh International Symposium GRID 2022

2022

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It is my great pleasure to introduce You the research papers of the Eleventh Symposium on Graphic Engineering and Design.With this proceeding we continue the works of previous symposiums which have been held biennial since year 2002.We're delighted that this international symposium has once again gatered a great number of participants from many countries as it became a tradition over the past 20 years.The papers include the achievements of researches in the field of technology and scientific areas relevant to graphic technology and graphic design. Through the work of the symposium GRID we continued significant scientific cooperation with educational institutions all over the world. With them we are continuing good cooperation which is the driving force for the creation and display of new developments, both individual and common. I want to thank everyone who participated with their paper and presentation in the Symposium. Your contribution is significant for the improvement of the Symposium on Graphic Engineering and Design GRID 22. The research achievements presented here are also valuable to the scientific and professional community and are highly appreciated.

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Section: Image Analysis and Feature Extractionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Proceedings - The Eleventh International Symposium GRID 2022

2022

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“…Effect of addition organoclay in styrene butadiene latex also shown on its viscosity and water retention of coating colors. All coating colors showed shear thinning behavior [37]. Organoclay increased interaction between coating components and resulted higher viscosity of coating colour Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 30 September 2019 doi:10.20944/preprints201909.0335.v1…”

Section: Viscosity and Water Retention Of Coating Colormentioning

confidence: 99%

Synthesis Polymer Styrene Butadiene Hybrid Latex with Laponite Organoclay as Filler via Emulsion Polymerization Technique for Application in Paper Coating

Soegijono¹,

Chanra²,

Zhongwu³

et al. 2019

Preprint

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Synthesis of styrene butadiene hybrid latex was performed via emulsion polymerization technique using various amount of laponite clay as filler. Laponite clay was modified with cationic surfactant methyl triphenylphosphonium bromide (MTPB) with ion exchange technique prior to polymerization process. The main objective of the modification is to render the surface of the clay layers to more organophilic. Emulsion polymerization was performed under semi batch process using 2 L laboratory stainless steel reactor with temperature 85°C to 90°C for 8 hours. Polymer hybrid styrene butadiene latex was characterized for its physical and chemical properties with standard ASTM Methods. Characterization of its binding and printing properties were carried out with standard testing method (TAPPI Methods) using single coating formulation on 80 gsm woodfree paper. Polymer hybrid latex based on styrene and butadiene monomers with laponite clay enhanced binding and printing properties of coated paper, addition of laponite clay to 6.0 wt % increased the binding resistance of the coated paper two times higher than pure latex. Reducing binder level become possible for cost saving.

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“…Several studies related to paper coating have focused on identifying the best pigment-binder combinations and thus the properties of the final coated product. The type and combination of the various coating color components affect the mechanical, optical, and water penetration properties of the coated paper in a complex manner (Morsy and EI-Sherbiny 2004;Ortner et al 2018;Rajabi Abhari et al 2018;Senden et al 2000;Oh et al 2019). A properly formulated coating improves diverse coated paper properties, including brightness, opacity, smoothness, surface strength, ink setting, print gloss, and so on (Al-Turaif 2006;Anthony et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Dynamic water penetration behavior of top coating color and its effects on structure properties of double-coated layer

Im¹,

Youn

Lee

2022

BioRes

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The relationship between the dynamic water penetration behavior of top coating color and double-coated paper properties, including pore structure, surface roughness, gloss, and surface latex content, was investigated. Top coating was applied onto the precoated paper prepared using different pigment types, thereby having different pore structures. To investigate the effect of dwell time on pore structure and surface latex content, coating speed and the distance between two coating heads of a laboratory coater were adjusted. As the number of pores of the precoated layer increased, the amount of water that penetrated the precoated paper increased, regardless of low shear viscosity of the top coating color. The relative pore ratio and surface properties of the top coated layer were proportional to those of the precoated layer. A UV absorbance analysis was conducted to examine latex binder migration. The latex content on the surface of the coating layer was mainly affected by the dwell time to the dryer after coating.

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Suspension-polymerized Latex as an Additive for Surface Sizing and Its Effect on Fold Cracking of Coated Paper

Cited by 7 publications

References 0 publications

Proceedings - The Eleventh International Symposium GRID 2022

Proceedings - The Eleventh International Symposium GRID 2022

Synthesis Polymer Styrene Butadiene Hybrid Latex with Laponite Organoclay as Filler via Emulsion Polymerization Technique for Application in Paper Coating

Dynamic water penetration behavior of top coating color and its effects on structure properties of double-coated layer

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