scholarly journals Raw materials for pulp and paper industry in Japan and future prospect.

1991 ◽  
Vol 45 (1) ◽  
pp. 50-53
Author(s):  
Yoshitaka Miyawaki
Keyword(s):  
Raw Materials ◽  
Future Prospect ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper

Forests, fiber, and the environment – In view of the fiber supply to the pulp and paper industry

1999 ◽  
Vol 75 (2) ◽  
pp. 247-255 ◽  
Author(s):  
Dinesh Mohta ◽  
D. N. Roy
Keyword(s):  
Raw Materials ◽  
Paper Industry ◽  
Wood Fiber ◽  
Pulp And Paper Industry ◽  
Developed Countries ◽  
Wood Pulp ◽  
Vital Role ◽  
Pulp And Paper ◽  
High Yield ◽  
Paper Mills

Forests play a vital role in the social, economic, and environmental development of any country. Paper, composed principally of wood fiber, is an essential commodity in promoting literacy, communication, documentation, and packaging. However, there is much concern about the world's forests being over-utilized. This has led to serious repercussions, not only to humanity, but also to the earth's biodiversity as a whole. It is now time that forests be used in a more responsible and ethical manner. Because of reduced forest area, increasing pulpwood costs, and an increasing demand for pulp and paper products, it might be expected that the focus would shift to high yield pulping processes or to the use of cellulosic non-wood raw materials. Non-woods are available in good supply all over the world, but are currently under-utilized. It is estimated that replacing 5–10% of wood pulp with non-wood pulp would have an important impact on the conservation of forests and the environment. This replacement of wood pulp by non-wood pulp could be environmentally and economically acceptable even in developed countries. By doing so, pulp and paper mills would have a lead role in reducing their dependency on forests for fiber. This determination and commitment would enhance the long-term sustainability of forests and the pulp and paper industry. Above all, it would be a sustainable step towards "our common future." Key words: forest, sustainable development, fiber supply, pulp and paper, non-woods

Fiber Morphology of Different Bamboo Species and Age

2021 ◽  
Vol 1025 ◽  
pp. 312-318
Author(s):  
Nur Musfirah Suhaimi ◽  
Nurul Husna Mohd Hassan ◽  
Rushdan Ibrahim ◽  
Latifah Jasmani
Keyword(s):  
Cell Wall ◽  
Fiber Length ◽  
Fiber Diameter ◽  
Raw Materials ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Lumen Diameter ◽  
Bamboo Species ◽  
Fiber Morphology

Fiber morphology of 3 species of bamboo namely Bambusa vulgaris, Gigantochloa levis, and Gigantochloa scortechinii at age of 1, 3, and 5 years, was evaluated. It shows that different species of bamboo have different properties in terms of their fiber morphology that consist of fiber length, fiber diameter, and lumen diameter. Fiber diameter, fiber length, and cell wall thickness increased with the increasing of the bamboo age but the lumen diameter decreased when the bamboo gets older. G. levis at age 1 to 3 and G. scortechinii at age 1 have high potential to be the raw materials for the pulp and paper industry.

scholarly journals Utilisation of pulp and paper industry wastes as raw materials in cement clinker production

2009 ◽  
Vol 1 (1) ◽  
pp. 74 ◽  
Author(s):  
Fernando Castro ◽  
Candida Vilarinho ◽  
Delfim Trancoso ◽  
Paula Ferreira ◽  
Fernando Nunes ◽  
...  
Keyword(s):  
Raw Materials ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Cement Clinker ◽  
Clinker Production

scholarly journals RESOURCE-SAVING TECHNOLOGY OF CARDBOARD AND PAPER PRODUCTS

2021 ◽  
Vol 297 (3) ◽  
pp. 112-115
Author(s):  
VITA HALYSH ◽  
IRYNA DEYKUN ◽  
Keyword(s):  
Surface Layer ◽  
Raw Materials ◽  
Paper Industry ◽  
Physical And Mechanical Properties ◽  
Cellulose Fibers ◽  
Pulp And Paper Industry ◽  
Wood Pulp ◽  
Pulp And Paper ◽  
Raw Material ◽  
Corrugated Cardboard

Nowadays, the products of domestic enterprises of the pulp and paper industry are 80% made from secondary raw materials – recycling paper, which negatively affects its quality, narrows the range and limits the scope of use. This state of the industry connected with the lack of domestic production of cellulose fibrous products. The raw material problem of the pulp and paper industry of Ukraine can be solved by using annual plants and wastes of crop processing for the production of fibrous materials for various purposes. Rapeseed stalks can be considered as a promising raw material to meet the needs of the pulp and paper industry. The aim of the work is to study the physical and mechanical properties of writing paper and cardboard for flat layers of corrugated cardboard, which contain cellulose fibers of rapeseed stalks. This paper presents the results of research of sizes of elementary cellulose fibers from rapeseed stalks. Studies of the fractional composition showed that 70% of cellulose fibers from rapeseed have a length in the range of 0.02 to 0.81 mm and only 30% have a length exceeding 1 mm. To study the effect of cellulose content from rapeseed stalks in the composition of writing paper, paper samples of 80 g/m2 were prepared at different ratios of cellulose from non-wood raw materials to coniferous cellulose. Studies have shown that the surface of paper made of non-wood pulp has a high smoothness and uniform lumen and is more elastic compared to paper made of bleached coniferous sulfate pulp. According to the results of physical and mechanical tests, it can be concluded that the increase in the content of non-wood pulp from rapeseed stalks in the composition of writing paper leads to a decrease in all physical and mechanical properties of the paper. To study the effect of non-wood pulp from rapeseed stalks in a cardboard composition for flat layers of corrugated cardboard, cardboard samples of 175 g/m2 were made. Recycling paper of MS-6B was used as a bottom layer, and non-wood pulp as a surface layer of cardboard. The ratio of recycling paper to non-wood pulp in laboratory samples of cardboard was 80:20 mass %. According to the results, it can be concluded that the use for the surface layer of non-wood pulp from rapeseed stalks allows to obtain cardboard with strength values that fully meet the requirements for cardboard of K-1 type. In general, it was shown that non-wood rapeseed pulp can be used to replace more expensive sulfate bleached coniferous pulp in the production of writing paper and cardboard for flat layers of corrugated cardboard as a surface layer.

scholarly journals Agricultural Residues as an Alternative Source of Fibre for the Production of Paper in Kenya-A Review

2021 ◽  
pp. 22-37
Author(s):  
John Odhiambo Otieno ◽  
Treezer Nelly Okumu ◽  
Morelly Adalla ◽  
Fredrick Ogutu ◽  
Boniface Oure
Keyword(s):  
Raw Materials ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Agricultural Residues ◽  
Pulp And Paper ◽  
Raw Material ◽  
Paper Production ◽  
Wood Fibres ◽  
Paper And Pulp ◽  
Pulp Production

The pulp and paper industry is primarily dependent on fibrous wood for pulp and paper production. However, this over-dependence on fibrous wood poses serious environmental challenges such as the diminishing of the fibrous wood stocks, deforestation, emission of greenhouse gases, and global warming. Therefore, to mitigate these environmental challenges associated with its utilization for paper and pulp production, other sustainable raw material sources can also be considered for the production of paper and pulp. There are enormous benefits associated with the utilization of non-wood fibres as an alternative and sustainable raw materials source for the production of paper and pulp. These benefits have in the recent past prompted millers in China, India, Brazil, and the USA to consider the utilization of non-wood fibres in paper and pulp production. In Kenya, the pulp and paper industry is very much dependent on fibrous wood for production and the industry is yet to fully embrace the utilization of nonwood fibres for paper and pulp production. Further, the dependence on fibrous wood has contributed significantly to the decline of paper pulp and paper production, deforestation, and rise in paper importations due to insufficient raw material supplies. The importation of paper and pulp products has further led to the collapse of the paper industry in Kenya. The sector stands a chance of revival and vibrancy through the utilization of the abundant agricultural residues and feedstocks lying in the agricultural fields across the country. Similar experiences elsewhere have proved that the abundance of agricultural waste can be utilized for the production of paper and pulp due to their excellent fibre content for specialty papers, and easy pulpability. The agricultural residues are therefore considered a quintessential alternative and sustainable source of raw materials for the pulp and paper industry. Moreover, their utilization will mitigate environmental impacts such as deforestation, climate change, and pollution .

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