Comparative study on Pulping characteristics of Carpinus betulus and Parotia oersica woods
In this investigation some anatomical, chemical and pulping suitability of two Iranian hardwood species which predominate in the Caspian forests were examined. The species are carpinus betulus (Hornbeam) and parotia persica (Ironwood).The results of this study revealed that:The average fiber length...
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| Format: | Article |
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Regional Information Center for Science and Technology (RICeST)
2000-03-01
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| Series: | تحقیقات علوم چوب و کاغذ ایران |
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| Online Access: | http://ijwpr.areeo.ac.ir/article_117492_d41d8cd98f00b204e9800998ecf8427e.pdf |
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| author | Abdolrahman Hosseinzadeh Abbas Fakhryan roghani Amir Nourbakhsh Fardad Golbabaei |
| author_facet | Abdolrahman Hosseinzadeh Abbas Fakhryan roghani Amir Nourbakhsh Fardad Golbabaei |
| author_sort | Abdolrahman Hosseinzadeh |
| collection | DOAJ |
| description | In this investigation some anatomical, chemical and pulping suitability of two Iranian hardwood species which predominate in the Caspian forests were examined. The species are carpinus betulus (Hornbeam) and parotia persica (Ironwood).The results of this study revealed that:The average fiber length of carpinus betulus is 1.4 mm., fiber diameter 18 mm, and cell wall thickness 3.37 mm, while inparotia persica, fiber length, cell diameter and cell wall thickness are 1.34 mm, 17.3 mm and 3.48 mm respectively.The overall average of cellulose content: of carpinus betulus and Parotia persica were measured at 48.5, and 46.1 percent, and the lignin content at 17.5 and 21.5 percent respectively.The wood of each of the above species was cooked by means of a kraft process without difficulty but, there was a slight decrease in yield and kappa number with increase active alkali.The pulping yield with active alkali of14% was about 49.6 and with 20% was 43.44 percent, while the pulping yield of parotia persica in active alkali of 14% was 43.04 and in 20% about 37.79 percent. Thus, it may be concluded that for production of wrapping paper from carpinus betulus and parotia percica, using active alkali of 14% might give better quality paper and for production of printing paper from these two species active alkali of 20 percent might be desirable. |
| first_indexed | 2024-12-14T13:05:45Z |
| format | Article |
| id | doaj.art-834b844fba464bc7a7002c8880062e1a |
| institution | Directory Open Access Journal |
| issn | 1735-0913 2383-112X |
| language | fas |
| last_indexed | 2024-12-14T13:05:45Z |
| publishDate | 2000-03-01 |
| publisher | Regional Information Center for Science and Technology (RICeST) |
| record_format | Article |
| series | تحقیقات علوم چوب و کاغذ ایران |
| spelling | doaj.art-834b844fba464bc7a7002c8880062e1a2022-12-21T23:00:19ZfasRegional Information Center for Science and Technology (RICeST)تحقیقات علوم چوب و کاغذ ایران1735-09132383-112X2000-03-0159- شماره 22513310.22092/ijwpr.2000.117492117492Comparative study on Pulping characteristics of Carpinus betulus and Parotia oersica woodsAbdolrahman Hosseinzadeh0Abbas Fakhryan roghani1Amir Nourbakhsh2Fardad Golbabaei3Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural ResearMSc., Wood and Paper Science Research Division, Research Institute of Forests and Rangelands , Iran,Wood and Paper Science Research Division, Research Institute of Forests and Rangelands , Iran,Wood and Forest Products Science Research Division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO) P.O. Box 13185-116, Tehran, IranIn this investigation some anatomical, chemical and pulping suitability of two Iranian hardwood species which predominate in the Caspian forests were examined. The species are carpinus betulus (Hornbeam) and parotia persica (Ironwood).The results of this study revealed that:The average fiber length of carpinus betulus is 1.4 mm., fiber diameter 18 mm, and cell wall thickness 3.37 mm, while inparotia persica, fiber length, cell diameter and cell wall thickness are 1.34 mm, 17.3 mm and 3.48 mm respectively.The overall average of cellulose content: of carpinus betulus and Parotia persica were measured at 48.5, and 46.1 percent, and the lignin content at 17.5 and 21.5 percent respectively.The wood of each of the above species was cooked by means of a kraft process without difficulty but, there was a slight decrease in yield and kappa number with increase active alkali.The pulping yield with active alkali of14% was about 49.6 and with 20% was 43.44 percent, while the pulping yield of parotia persica in active alkali of 14% was 43.04 and in 20% about 37.79 percent. Thus, it may be concluded that for production of wrapping paper from carpinus betulus and parotia percica, using active alkali of 14% might give better quality paper and for production of printing paper from these two species active alkali of 20 percent might be desirable.http://ijwpr.areeo.ac.ir/article_117492_d41d8cd98f00b204e9800998ecf8427e.pdfCarpinus betulusParotia oersicaanatomicalchemical and pulping suitability |
| spellingShingle | Abdolrahman Hosseinzadeh Abbas Fakhryan roghani Amir Nourbakhsh Fardad Golbabaei Comparative study on Pulping characteristics of Carpinus betulus and Parotia oersica woods تحقیقات علوم چوب و کاغذ ایران Carpinus betulus Parotia oersica anatomical chemical and pulping suitability |
| title | Comparative study on Pulping characteristics of Carpinus betulus and Parotia oersica woods |
| title_full | Comparative study on Pulping characteristics of Carpinus betulus and Parotia oersica woods |
| title_fullStr | Comparative study on Pulping characteristics of Carpinus betulus and Parotia oersica woods |
| title_full_unstemmed | Comparative study on Pulping characteristics of Carpinus betulus and Parotia oersica woods |
| title_short | Comparative study on Pulping characteristics of Carpinus betulus and Parotia oersica woods |
| title_sort | comparative study on pulping characteristics of carpinus betulus and parotia oersica woods |
| topic | Carpinus betulus Parotia oersica anatomical chemical and pulping suitability |
| url | http://ijwpr.areeo.ac.ir/article_117492_d41d8cd98f00b204e9800998ecf8427e.pdf |
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