Effect of papermaking conditions on the ink absorption and overprint accuracy of paper

Dong, Yuanfeng; Wang, Binshou; Ji, Hairui; Zhu, Wenshuai; Long, Zhu; Dong, Chune

doi:10.15376/biores.15.1.1397-1406

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…Paper is a compelling choice: it is sustainable, biodegradable, highly recycled, and more cost effective (∼0.1 cent dm −2 ) compared to commonly used plastics such as PET (≈2 cent dm −2 ) and PI (∼30 cent dm −2 ) [12]. Nonetheless, paper substrates have not yet replaced plastics because the porous microstructure of paper causes the imbibition and wicking of functional inks, which compromises printability and resolution [12][13][14][15][16][17][18]. Furthermore, an ideal green process for end-of-life recycling should separate and reuse electronic materials and recycle the substrate.…”

Section: Introductionmentioning

confidence: 99%

Shellac-paper composite as a green substrate for printed electronics

Hussein

Schlingman

Noade

et al. 2022

Flex. Print. Electron.

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Printed electronic devices that sense and communicate data will become ubiquitous as the Internet of Things continues to grow. Devices that are low cost and disposable will revolutionize areas such as smart packaging, but a major challenge in this field is the reliance on plastic substrates such as polyethylene terephthalate. Plastics discarded in landfills degrade to form micro- and nanoplastics that are hazardous to humans, animals, and aquatic systems. Replacing plastics with paper substrates is a greener approach due to the biodegradability, recyclability, low cost, and compatibility with roll-to-roll printing. However, the porous microstructure of paper promotes the wicking of functional inks, which adversely affects printability and electrical performance. Furthermore, truly sustainable printed electronics must support the separation of electronic materials, particularly metallic inks, from the paper substrate at the end of life. This important step is necessary to avoid contamination of recycled paper and/or waste streams and enable the recovery of electronic materials. Here, we describe the use of shellac – a green and sustainable material – as a multifunctional component of green, paper-based printed electronics. Shellac is a cost-effective biopolymer widely used as a protective coating due to its beneficial properties (hardness, UV resistance, and high moisture- and gas-barrier properties); nonetheless, shellac has not been significantly explored in printed electronics. We show that shellac has great potential in green printed electronics by using it to coat paper substrates to create planarized, printable surfaces. At the end of life, shellac acts as a sacrificial layer. Immersing the printed device in methanol dissolves the shellac layer, enabling the separation of printed electronic materials from the paper substrate.

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Section: Introductionmentioning

confidence: 99%

Shellac-paper composite as a green substrate for printed electronics

Hussein

Schlingman

Noade

et al. 2022

Flex. Print. Electron.

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“…Papers made from hardwood exhibit higher ink absorption abilities and overprinting precision. This is attributed to a higher content of fine fibers [25]. In addition, while shorter fibers exhibit less flexibility and slenderness ratio, short and thick fibers show even poorer values [26].…”

Section: Review 4 Of 25mentioning

confidence: 98%

Paper-Mill Wastes for Bioethanol Production in Relation to Circular Economy Concepts: A Review

Or-Chen,

Gerchman,

Mamane

et al. 2024

Applied Sciences

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This review explores circular economy principles in regard to ethanol production from paper-mill sludge. Environmental sustainability and renewability over fossil fuels make second generation ethanol an attractive energy source in a rapidly growing population and consumption world. Paper sludge (PS), a by-product of the pulp and paper (P&P) industry, can no longer be recycled for paper production and is mainly disposed of in landfills. Therefore, it poses a major environmental challenge. However, it has shown potential as a valuable raw material for ethanol production, along with other pulp and paper products, due to its abundant availability and high cellulosic content. This waste-to-energy (WtE) technology for ethanol production is proposed as an alternative, aligning with circular economy concepts to maximize resource efficiency and minimize waste. This review underlines the circular economy aspects of bioethanol production within paper mill sludge management systems. Circular economy principles applied to ethanol production from PS offer a promising avenue for sustainable biofuel development that not only addresses waste management challenges but also enhances the overall environmental performance of biofuel production. Furthermore, economic benefits are described, highlighting the potential for job creation and community development.

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“…The ink absorption capacity of paper can be influenced by parameters such as the type of pulp used, basis weight, sizing agent, and beating degree [52]. For example, research performed by Dong et al showed hardwood pulp exhibits a higher performance in terms of paper absorptivity compared to softwood pulp [53].…”

Section: Properties Of Paper Substratesmentioning

confidence: 99%

Towards Expanding the Use of Paper Made from Recycled and Non-Woody Plants: Enhancing the Print Quality through the Application of Nano-Modified Offset Inks

Strižić Jakovljević,

Mahović Poljaček,

Jamnicki Hanzer

et al. 2024

Sustainability

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This study aims to investigate the feasibility of using paper made from eco-friendly recycled and non-woody plants in graphic technology, particularly in offset printing. Instead of changing the composition or modifying the surface properties of the paper, the focus was on enhancing the print quality by modifying the printing ink. By modifying the printing inks, the quality of the prints on recycled and non-woody paper can be optimized, which in turn reduces the need for paper made from primary fibers. This approach can expand the use of alternative materials in graphic technology and design. The objective was to optimize the print quality on these sustainable materials. Five types of uncoated paper were used, with high-quality uncoated offset paper based on virgin fibers serving as a reference. Laboratory tests of the basic and surface properties were carried out to measure the paper quality parameters that are important for offset printing. The influence of the paper composition on its optical and colorimetric properties was also investigated. The interaction between the selected papers and offset inks was examined through measurements of adhesion parameters and ink transfer, i.e., the paper’s ability to accept the ink. To enhance the applicability of the investigated papers as printing substrates in the graphic industry, SiO2 and TiO2 nanoparticles were added to the offset inks. The influence of the paper composition on the colorimetric properties of the prints was also investigated. The print uniformity, as an important quality characteristic, was determined by measuring the mottling index. The research findings indicate that incorporating SiO2 and TiO2 nanoparticles into offset inks can enhance the interaction between the paper and ink, leading to improved print quality. This study provides new perspectives on the possibilities of using recycled and non-woody plant paper in offset printing without significantly compromising the quality of the print.

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Effect of papermaking conditions on the ink absorption and overprint accuracy of paper

Cited by 6 publications

References 14 publications

Shellac-paper composite as a green substrate for printed electronics

Shellac-paper composite as a green substrate for printed electronics

Paper-Mill Wastes for Bioethanol Production in Relation to Circular Economy Concepts: A Review

Towards Expanding the Use of Paper Made from Recycled and Non-Woody Plants: Enhancing the Print Quality through the Application of Nano-Modified Offset Inks

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