Novel calcium carbonate filler for cellulose industry

Dafchahi, Mostafa Nikkhah; Zabihzadeh, Seyed Majid; Nazarnezhad, N; Asadpour, Ghasem; Pirayesh, Hamidreza

doi:10.1515/npprj-2021-0018

Cited by 8 publications

(4 citation statements)

References 39 publications

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“…Paper producers are seeking alternative materials to lower cellulose-related paper and packaging costs. As a result, the fillers used to improve the characteristics of paper are critical. ,, Nonfiber inorganic materials are preferred over fibrous materials because they lower manufacturing costs and allow for faster drying than fibrous raw materials, hence boosting output. , Many industrial raw materials are evaluated and employed in the papermaking process for two purposes: filling and coating. Some pigments are only used for filling or coating, whereas others may do both …”

Section: Introductionmentioning

confidence: 99%

“…As a result, the fillers used to improve the characteristics of paper are critical. 1 , 4 , 15 Nonfiber inorganic materials are preferred over fibrous materials because they lower manufacturing costs and allow for faster drying than fibrous raw materials, hence boosting output. 16 , 17 Many industrial raw materials are evaluated and employed in the papermaking process for two purposes: filling and coating.…”

Section: Introductionmentioning

confidence: 99%

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Improving the Optical Properties and Filler Content of White Top Testliners by Using a Size Press

2023

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This study aims to investigate the impact of coating with ground calcium carbonate (GCC) on the optical properties and filler content of white top testliner (WTT) papers. The paper properties investigated include brightness, whiteness, opacity, color coordinates, and yellowness. The results showed that the amount of filler mineral used in the coating process significantly affected the optical properties of the paper. The use of 15% total solids of GCC in the coating suspension resulted in the highest level of whiteness and improved the brightness value by 6.8%. The use of 7% total solids of starch and 15% total solids of GCC reduced the yellowness index by 85%. However, the use of only 7 and 10% total solids of starch had an adverse effect on the yellowness values. The surface treatment led to a significant increase in the filler content of the papers, with a maximum of 23.8% achieved using a coating suspension with 10% total solids of starch solution, 15% total solids of GCC suspension, and 1% dispersant. The starch and GCC in the coating suspension were found to have a direct impact on the filler content of the WTT papers. The addition of a dispersant improved the uniform distribution of the filler minerals and increased the filler content of the WTT. The water resistance of WTT papers increases due to the use of GCC, while their surface strength remains at an acceptable level. The study demonstrates the potential benefits of the surface treatment in terms of cost savings and provides valuable information on the impact of the treatment on the properties of WTT papers.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improving the Optical Properties and Filler Content of White Top Testliners by Using a Size Press

2023

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“…Paper manufacturers are looking for alternative materials to reduce paper and paper packaging costs associated with cellulose. Therefore, the fillers used to improve paper properties are crucial (Dafchahi et al , 2021; Sözbir and Çiçekler, 2022; Zhang et al , 2013). Since nonfibrous inorganic materials are significantly cheaper than fibrous materials, they are heavily chosen, as they reduce manufacturing costs and allow for faster drying than fibrous raw materials, thereby increasing yield (Karademir et al , 2013; Lee et al , 2021).…”

Section: Introductionmentioning

confidence: 99%

Effects of precipitated and ground calcium carbonate coating on mechanical properties of fluting paper

Çiçekler

Üzüm

Çopurkuyu

2023

PRT

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Purpose The purpose of this study is to investigate the effects of a pigment coating on the mechanical properties of fluting paper. Design/methodology/approach Two different calcium carbonate pigments were used in the preparation of the coated color, precipitated calcium carbonate (PCC) and ground calcium carbonate (GCC). Fluting paper produced by recycling waste paper was used as base paper. The effects of PCC and GCC pigments on mechanical properties were compared. Ring crush test (RCT), corrugating medium test (CMT), corrugating crush test (CCT), tensile and burst strength tests were applied to the coated papers, and the results were compared to the mechanical properties of base paper. Findings The tensile and burst indices of the coated papers were found to be higher than base papers about 13.9% and 6.05%, respectively. While the coating process positively affected the RCT and CCT values, it did not show a significant impact on the CMT values. GCC, one of the pigments used in coating colors, had a more effective effect on the mechanical properties of fluting papers compared to PCC. Originality/value These results suggest that coating of fluting papers has a positive effect on mechanical properties and the use of GCC as a pigment is more effective than PCC.

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“…The fillers used to improve the paper properties are therefore of great importance. (Lourenço et al, 2019;Nikkhah Dafchahi et al, 2021;Tutus et al, 2020;Zhang et al, 2013). Since these non-fiber inorganic materials are much cheaper compared to fiber materials, they are highly preferred because they reduce production costs and provide faster drying compared to fiber raw materials, thus increasing production (Karademir et al, 2013;Lee et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

A study on effect of modified calcite on filler retention and mechanical properties of fluting papers

Sözbir

Çiçekler

2022

Bilimsel Madencilik Dergisi

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In this study, the use of modified calcite as a filler in fluting paper production was investigated and its effects on retention and some mechanical properties of the papers were determined. Ground calcium carbonate (GCC/calcite) and cationic starch were used for modification. Filler modification with alum effect of CPAM resulted in starch-calcite encapsulation. Produced modified calcite (MC) was used in fluting paper production at certain dosages as filler. Simultaneously, paper was made with unmodified calcite (UC), and the effects of modified calcite on the paper properties and filler retention were studied. The results of this study indicated that the use of 10% MC improved filler retention and provided approximately 23% more retention than the use of 10% UC. In addition, mechanical properties and air permeability values of MC-filled papers were higher than those of UC-filled papers. With the use of MC in fluting papers production, better filler retention was achieved, while the reduction in mechanical properties caused by the addition of filler can be minimized. Besides, impurities in white water can be minimized by reducing the filler dosage given during paper production.

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Novel calcium carbonate filler for cellulose industry

Cited by 8 publications

References 39 publications

Improving the Optical Properties and Filler Content of White Top Testliners by Using a Size Press

Improving the Optical Properties and Filler Content of White Top Testliners by Using a Size Press

Effects of precipitated and ground calcium carbonate coating on mechanical properties of fluting paper

A study on effect of modified calcite on filler retention and mechanical properties of fluting papers

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