Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Korea Technical Association of The Pulp and Paper Industry
Journal Basic Information
Journal DOI :
Korea Technical Association of the Pulp and Paper Industry
Editor in Chief :
Volume & Issues
Volume 44, Issue 6 - Dec 2012
Volume 44, Issue 5 - Oct 2012
Volume 44, Issue 4 - Aug 2012
Volume 44, Issue 3 - Jun 2012
Volume 44, Issue 2 - Apr 2012
Volume 44, Issue 1 - Feb 2012
Selecting the target year
Strengthening Treatment of Aged Hanji with Solvent Soluble Polymers
Kim, Kang-Jae ; Lee, Min-Hyung ; Eom, Tae-Jin ;
Journal of Korea Technical Association of The Pulp and Paper Industry, volume 44, issue 1, 2012, Pages 1~9
DOI : 10.7584/ktappi.2012.44.1.001
In this study, 5 solvent soluble polymers were treated on Hanji. Mechanical properties, morphology and oxidation index with thermal aging were measured on the aged Hanji, dewaxed Hanji and polymer treated Hanji. Synthetic polymers(such as polylactic acid, polybutylene succinate, polystyrene) treated Hanji had higher strength and thermal stability than cellulose derivatives(such as cellulose nitrate and cellulose acetate) treated Hanji. Polymer treated Hanji showed a little bit of color change. The oxidation index of PS treated Hanji did not increase with thermal aging because it did not have a carboxyl group in chemical structure. Finally, polystyrene was found to be the most efficient method for strengthening the dewaxed Hanji. The best aging safety and thermal stability were obtained at the polystyrene 3% solution.
Study on the Thermal Fastness of Fluorescent Whitening Agents
Kim, Chul-Hwan ; Lee, Ji-Young ; Kim, Beong-Ho ; Choi, Jae-Sung ; Lim, Gi-Baek ; Kim, Da-Mi ;
Journal of Korea Technical Association of The Pulp and Paper Industry, volume 44, issue 1, 2012, Pages 10~15
DOI : 10.7584/ktappi.2012.44.1.010
Fluorescent whitening agents (FWAs) are used extensively in the paper industry to improve the optical properties. FWAs are neither photochemically nor thermally stable, and thereby the papers containing FWAs can be damaged by external heat. We observed that the CIE whiteness, ISO brightness and fluorescence index of the commercial papers decreased with the thermal treatment and thought that the thermal fastness of FWAs was the main factor affecting the thermal stability of the papers. Thus, the model papers treated with three types of FWAs were manufactured respectively and the thermal stability of FWAs was identified by determining
CIE whiteness and
Use of New Fibers for the Development of Security Paper
Jung, Sun-Young ; Gil, Sang-Hyuk ; Kim, Young-Wook ; Seo, Yung-Bum ;
Journal of Korea Technical Association of The Pulp and Paper Industry, volume 44, issue 1, 2012, Pages 16~23
DOI : 10.7584/ktappi.2012.44.1.016
Use of security papers for monetary papers, gift certificates, and lottery tickets increases every year. As the use of security papers increase, there are more possibility of counterfeits. In this study, we used unique fibers from the sea to increase the difficulties against counterfeiting. The red algae fibers give opacity as much as calcium carbonates, and have unique shape in length (
) and width (
) to be discerned from other natural fibers such as wood and cotton fibers. We mixed red algae fibers to wood fibers in a series of fixed ratios to make single and multiply papers for making security papers. Paper with dyed red algae fibers were also used. Paper made without fillers gave enough opacity for printing when red algae fibers were used more than 20% of the fiber furnish. Those properties may allow red algae fibers to be a potential candidate for fiber raw materials of security paper.
Color Supplementation of Base Paper for Coating after Wooden Fillers Addition
Yoon, Myung-Suk ; Yoo, Hyun-Jin ; Jung, Chul-Hun ; Park, Jong-Moon ;
Journal of Korea Technical Association of The Pulp and Paper Industry, volume 44, issue 1, 2012, Pages 24~30
DOI : 10.7584/ktappi.2012.44.1.024
This study was carried out in order to analyze a repletion possibility about color change of base paper after elevated heat exposure when wooden fillers were added. Fillers may reduce production cost because its price is usually inexpensive than pulp with higher bulkiness. Wooden fillers have lower density than inorganic fillers, so they may increase bulk more than inorganic fillers. Never the less wooden fillers have disadvantage of yellow color by heat exposure, so the addition level should be carefully controlled. Brightness and whiteness changes after elevated heat exposure depending on coating weight were analyzed. With wooden fillers addition, breaking length and surface strength decreased but bulkiness increased. As the exposure time of elevated heat increased the coating paper with wooden fillers addition had higher brightness and whiteness values than those of inorganic fillers.
Manufacturing of High Quality Coated Paper using Environmental Friendly Plasma Technology(II) - Making coated paper using surface-treated base paper-
Shin, Dong-Joon ; Kim, Sun-Kyung ; Lee, Yong-Kyu ;
Journal of Korea Technical Association of The Pulp and Paper Industry, volume 44, issue 1, 2012, Pages 31~36
DOI : 10.7584/ktappi.2012.44.1.031
In the previous study, the possibility of modifying the surface properties of base paper with plasma treatment was evaluated. It was shown that only the hydrophilic properties of the base paper surface was increased while there was no changes in physical and optical properties. Only the surface of the plasma treated side was modified. In this study, the effect of plasma treatment on binder migration was elucidated. The base paper was plasma treated with various voltage and then the plasma treated base papers were coated with varying coated weight. The surface strength of the coated paper (dry and wet pick) was increased with plasma treatment, which implies that the plasma treatment of base paper can inhibit the binder migration.
The Effect of Acrylic Emulsion on Coated Paper Properties
Kim, Sun-Kyung ; Park, Yong-Chul ; Jung, Hae-Sung ; Lee, Yong-Kyu ;
Journal of Korea Technical Association of The Pulp and Paper Industry, volume 44, issue 1, 2012, Pages 37~42
DOI : 10.7584/ktappi.2012.44.1.037
This study was carried in order to manufacture the high quality coated paper. High quality includes not only physical and optical properties of coated paper but also final print quality. In this study, new acrylic-styrene emulsion was polymerized in laboratory and compared with conventional styrene-butadiene latex. Low-shear viscosity of coating color was decreased with increasing acrylic-emulsion dosage. Small amount of acrylic emulsion addition increased water retention, but further addition decreased it. Acrylic-emulsion addition improved paper gloss, brightness and whiteness, but decreased PPS and opacity slightly. Ink gloss was increased with using No. 3 acrylic-emulsion due to lower ink setting properties. However No. 1 and 2 emulsion showed the opposite result. Surface strength of coated paper was increased with using No. 3 acrylic-emulsion. These results indicate that high quality coated paper can be manufactured with using No. 3 acrylic-emulsion.
Action Plans of Paper Industry Correspond to the Carbon Dioxide Emission Trading Market
Sung, Yong-Joo ; Kim, Dong-Seop ; Um, Gi-Jeung ; Lee, Joon-Woo ; Kim, Se-Bin ; Park, Gwan-Soo ;
Journal of Korea Technical Association of The Pulp and Paper Industry, volume 44, issue 1, 2012, Pages 43~51
DOI : 10.7584/ktappi.2012.44.1.043
Carbon dioxide emission trading market would play very important role in the global effort to cope with climate change. In KOREA, the energy consumption and geen house gas emission of various industry would be controlled by the low carbon-green growth law which was established at 2009. The paper industry as one of major industries in terms of energy consumption has been greatly required to prepare action plan for addressing this regulation and reduction of carbon dioxide emission. In this study, the current states of carbon dioxide emission trading market were analyzed in terms of practical responses of the paper industry. And the various action plans including CDM projects for paper industry were suggested.
Study on the Application of Inorganic Byproduct from Fertilizer Manufacture Process as an Alternative Filler
Lee, Ji-Young ; Lee, Eun-Kyu ; Lee, Do-Yeob ; Yun, Kyeong-Tae ; Sung, Yong-Joo ; Choi, Jae-Sung ; Kim, Da-Mi ; Kim, Beong-Ho ; Lim, Gi-Baek ;
Journal of Korea Technical Association of The Pulp and Paper Industry, volume 44, issue 1, 2012, Pages 52~57
DOI : 10.7584/ktappi.2012.44.1.052
In this study, we investigated the possible use of a new inorganic material as alternative filler in the paper industry. The inorganic material is a mineral composed of calcium sulfate, that is generated when manufacturing phosphate fertilizer. The inorganic material was dehydrated by the thermal treatment to
to prepare white filler powders. Their basic properties, including color, particle shape, elements, and average particle size were identified. To determine the effect of new inorganic filler on paper's physical properties and strength, handsheets were prepared from HwBKP, SwBKP, and thermal treated inorganic fillers. Handsheets' ISO brightness, opacity, bulk, breaking length, and stiffness were measured. Results confirmed that thermal treated inorganic filler could be beneficial to the bulk and opacity of paper while maintaining higher level of breaking length and stiffness that is achieved using talc.
Strength Improvement of Linerboard by impregnation with PVAm
Kim, Hyuk-Jung ; Won, Jong-Myoung ; Cho, Byoung-Uk ;
Journal of Korea Technical Association of The Pulp and Paper Industry, volume 44, issue 1, 2012, Pages 58~64
DOI : 10.7584/ktappi.2012.44.1.058
As a first step to apply PVAm (polyvinylamine) on packaging paper by surface treatment, three types of linerboards were impregnated with PVAm solution. The effect of PVAm pick-up on strength properties of linerboard was investigated. The pick-up of PVAm was controlled by varying concentration of PVAm solution. It was found that dry tensile strength, tensile energy absorption, burst strength and compressive strength of linerboard were increased by applying PVAm. In addition, wet tensile strength was significantly improved with increasing PVAm pick-up. However, folding endurance was found to be decreased with increasing PVAm pick-up.
Properties of Bleachability of Paper Mulberry Pulp by Hydrogen Peroxide and Ultrasonication Bleaching System
Seo, Jin-Ho ; Kim, Hyoung-Jin ;
Journal of Korea Technical Association of The Pulp and Paper Industry, volume 44, issue 1, 2012, Pages 65~73
DOI : 10.7584/ktappi.2012.44.1.065
Nowadays, the concern on the environmental load of bleaching process gave rise to the process of ECF(elemental chlorine free) and TCF(total clorine free). These sequences are based on oxygen-derived compounds such as oxygen, ozone, and hydrogen peroxide which is used as a typical eco-friendly bleaching agent. In this study, paper mulberry pulp was bleached with hydrogen peroxide and some bleaching process were accompanied with ultrasonication in order to increase the bleaching efficiency. The best bleaching efficiency of paper mulberry pulp was obtained in the condition of hydrogen peroxide and ultrasonication(20 kHz) bleaching system at
for 30 min. The brightness and kappa number of paper mulberry pulp were gained to 5.09% and 3.52 respectively. and yield was slightly loosed to 2%. Therefore, the efficiency of hydrogen peroxide and ultrasonication bleaching system of paper mulberry pulp was superior to the conventional hydrogen peroxide bleaching system. Magnesium sulfate acted as a bleaching stabilizer for the increasement of yield. As a result, the yield and viscosity were increased to 2.2% and 12% respectively.