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Applied Sciences
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Advances in Pulp and Paper Technologies
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Advances in Pulp and Paper Technologies

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Industrial Technologies".

Deadline for manuscript submissions: 20 August 2024 | Viewed by 9604

Special Issue Editor

Prof. Dr. Chul-Hwan Kim

E-Mail Website
Guest Editor
Dept. of Environmental Materials Science/IALS, Gyeongsang National University, Jinju 52828, Korea
Interests: novel pulp and paper materials; refiner plates for pulp and paper

Special Issue Information

Dear Colleagues,

Although pulp and paper production is a mature process, there are still challenges and opportunities for the paper and pulp industries. Continuous technological improvements can further reduce environmental impacts and optimize the use of resources such as raw materials, water, and energy. This Special Issue aims to provide readers with new advances in improving product quality and process efficiency, reducing environmental impacts and production costs, and expanding the ability to use different novel materials.

This Special Issue will cover all topics related to novel pulp and paper materials and technologies. Topics include, but are not limited to, the following:

  • Pulp and paper characterization;
  • Paper quality;
  • Paper strength;
  • Process efficiency;
  • Production costs;
  • Cellulose composites;
  • Biocomposites;
  • Nanocelluloses;
  • Refiner plates.

I look forward to receiving your contributions.

Prof. Dr. Chul-Hwan Kim
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • pulp and paper characterization
  • paper quality
  • paper strength
  • process efficiency
  • production costs
  • cellulose composites
  • biocomposites
  • nanocelluloses
  • novel plates for manufacturing thermomechanical pulp (TMP) and stock preparation
  • electron beam irradiation
  • colored broke
  • ISO brightness
  • reuse
  • color change

Published Papers (5 papers)

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Editorial

Jump to: Research

2 pages, 161 KiB  
Editorial
Advances in Pulp and Paper Technologies
by Chul-Hwan Kim
Appl. Sci. 2023, 13(17), 9562; https://doi.org/10.3390/app13179562 - 24 Aug 2023
Viewed by 913
Abstract
It is of great honor to present this Editorial for the Special Issue “Advances in Pulp and Paper Technologies” [...] Full article
(This article belongs to the Special Issue Advances in Pulp and Paper Technologies)

Research

Jump to: Editorial

13 pages, 2173 KiB  
Article
Evaluation of Recycled Paperboard Properties and Characteristics
by Ekaterina Tikhomirova, Denis Aleksandrov, Bogdan-Marian Tofanica and Aleksandra Mikhailidi
Appl. Sci. 2024, 14(4), 1661; https://doi.org/10.3390/app14041661 - 19 Feb 2024
Viewed by 822
Abstract
Paperboard boxes represent a sought-after class of packaging products, where the use of recycled fibers offers a cost-effective and environmentally friendly alternative to virgin fibers. The presence of a significant proportion of recycled fibers in the paperboard leads to a number of limitations [...] Read more.
Paperboard boxes represent a sought-after class of packaging products, where the use of recycled fibers offers a cost-effective and environmentally friendly alternative to virgin fibers. The presence of a significant proportion of recycled fibers in the paperboard leads to a number of limitations associated with the deterioration of its characteristics. In this study, the properties of coated and uncoated paperboards containing recycled fibers, wood pulp, and virgin cellulose fibers were investigated using a laboratory sample of paperboard produced from 100% recycled fibers without any chemical additives for comparison. Properties such as smoothness, bulk density, absorbency, and tensile strength, as well as colorimetric characteristics, were determined for the recycled paperboards; for the latter test, charts were printed using inkjet printing and UV-curable inks. Whiteness was calculated by three formulae (CIE, Berger, and Stensby), and all the paperboards had a relatively low whiteness (not exceeding 90 CIE), with a yellowish tint due to recycled fibers and mechanical pulp in the composition. The absence of optical brightening agents in the paperboards was experimentally confirmed. The color gamuts of the paperboards were in direct ratio to their whiteness, with the highest ones demonstrated by the coated paperboards. Color reproduction, according to the tone value increase curves, also depended on the whiteness. Uncoated paperboards demonstrated smaller color shifts than the coated ones, with the greatest increase in tone for yellow color. Coated recycled paperboards are suitable for packaging printing under the same conditions as virgin fiber boards, while uncoated boards are the recommended choice for digital printing with UV inks. Full article
(This article belongs to the Special Issue Advances in Pulp and Paper Technologies)
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10 pages, 1159 KiB  
Article
High Cellulose Purity by Acid Hydrolysis Pretreatment on Kenaf Outer Bast
by Virginia Ghita Firsty, Ji Yeon Jeong, Yang Mo Gu, Jin Hyung Lee and Soo-Jeong Shin
Appl. Sci. 2023, 13(1), 334; https://doi.org/10.3390/app13010334 - 27 Dec 2022
Viewed by 2624
Abstract
Acid hydrolysis treatment of kenaf outer bast fiber can produce pure cellulose content and hydrolyzed hemicellulose to monosaccharides. The effects of various reaction temperatures (110–130 °C), acid concentrations of sulfuric acid (0.25–1.00 N), and reaction times (60–120 min) were investigated as the optimum [...] Read more.
Acid hydrolysis treatment of kenaf outer bast fiber can produce pure cellulose content and hydrolyzed hemicellulose to monosaccharides. The effects of various reaction temperatures (110–130 °C), acid concentrations of sulfuric acid (0.25–1.00 N), and reaction times (60–120 min) were investigated as the optimum condition to gain pure cellulose content. A 1H NMR spectroscopy was used to analyze the carbohydrate content in the reaction of acid hydrolysis treatment. The results showed that optimum conditions for acid hydrolysis refer to two treatment prospects. First, a higher reaction temperature of 130 °C was necessary to increase the reaction for the hydrolyzes of hemicellulose—the high yield content produced by 0.25 N sulfuric acid with a short reaction time of 60 min. to improve the purity of cellulose, provided by the high sulfuric acid solution of 1.00 N for 120 min. Hemicellulose was hydrolyzed at almost 100% based on the two optimal conditions. The analysis revealed that a high temperature of acid hydrolysis was the primary treatment to hydrolyze hemicellulose to increase high pure cellulose from the kenaf outer bast fiber. Full article
(This article belongs to the Special Issue Advances in Pulp and Paper Technologies)
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11 pages, 2348 KiB  
Article
Properties of Green Tea Waste as Cosmetics Ingredients and Rheology Enhancers
by Audrey Zahra, Seo-Kyoung Lim, Soo-Jeong Shin and Ik-Jun Yeon
Appl. Sci. 2022, 12(24), 12871; https://doi.org/10.3390/app122412871 - 14 Dec 2022
Cited by 3 | Viewed by 2890
Abstract
Green tea waste (GTW) is a naturally abundant material, and it has not been widely reused into more valuable materials. The composition of GTW was identified using NMR for carbohydrate composition, an element analyzer for protein content, acetone and hot water extraction for [...] Read more.
Green tea waste (GTW) is a naturally abundant material, and it has not been widely reused into more valuable materials. The composition of GTW was identified using NMR for carbohydrate composition, an element analyzer for protein content, acetone and hot water extraction for evaluating extractives, and Klason lignin for lignin content. GTW can be converted into nanoparticles by carboxymethylation as pretreatment of the degree of substitutions (DS) and high-pressure homogenizer for nanoparticle making. GTW was prepared using various DS 0 until DS 0.4. The results showed that GTW DS has a more than −30 mV zeta potential, suitable for stable nanoemulsion formulations. The particle size of GTW DS decreases with increasing carboxyl content in the hydrogel, which has a width and length from GTW DS 0.3 to DS 0.4. As a humectant, the water retention value (WRV) of GTW with various DS was increased; DS 0.3 is the best. DS 0.4 has the highest viscosity, storage, and loss modulus as rheology modifiers. Full article
(This article belongs to the Special Issue Advances in Pulp and Paper Technologies)
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11 pages, 6756 KiB  
Article
Study of Refining Effect of Mixed Pulps Using Refiner Plates with Different Bar Patterns
by Jeong-Heon Ryu, Chul-Hwan Kim, Ji-Young Lee, Ji-Su Lee, Cheong-Ha Lee and Jin-Hwa Park
Appl. Sci. 2022, 12(22), 11445; https://doi.org/10.3390/app122211445 - 11 Nov 2022
Cited by 1 | Viewed by 1535
Abstract
A new lightweight vertical bar plate was developed by inserting individual bars into the plate base rather than the typical sand casting method. The lightweight vertical bar plate has a very sharp bar edge because vertical bars are inserted instead of trapezoidal bars. [...] Read more.
A new lightweight vertical bar plate was developed by inserting individual bars into the plate base rather than the typical sand casting method. The lightweight vertical bar plate has a very sharp bar edge because vertical bars are inserted instead of trapezoidal bars. The refining effects of the mixed stock with softwood bleached kraft pulp (Sw-BKP) and hardwood bleached kraft pulp (Hw-BKP) were compared using two types of lightweight vertical bar plates with cutting edge lengths of 55 km/s (PA55) and 97 km/s (PB97). The fine bar plate (PB97) with large CEL (PB97) was very effective in reducing the refining energy required to reach the final freeness regardless of the mixing ratios of Sw-BKP and Hw-BKP compared to the plate with a small CEL (PA55). PB97 also consumed less refining energy than PA55 until proper sheet strength was achieved. In particular, irrespective of the mixing ratios of Sw-BKP and Hw-BKP, the tensile strength of sheets at the final freeness was greater in PB97 than in PA55. For stock throughput during refining, PA55 with the wide groove was almost similar to PB97 with the narrow groove. Full article
(This article belongs to the Special Issue Advances in Pulp and Paper Technologies)
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