Investigation on possibility of making durable paper with imported Eucalyptus pulp

Permanent or durable paper is a kind of paper that has a high degree of permanence and is likely to retain the properties which influence readability and document handling when storing in a protected environment for a long period. Permanence depends mainly on the chemical stability of the paper itse...

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Autores principales:	Alireza Khakifiroz, Seeyed Ahmad Mirshokraie, Amir homman Hamasi, Hababalah Khadmieslam, Mohammad Talaei poor
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2009
Materias:	durable paper imported Eucalyptus pulp BREAKING LENGTH strength indices Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/1409a10dbee94c42acbe59b87ae57b90
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spelling	oai:doaj.org-article:1409a10dbee94c42acbe59b87ae57b902021-12-02T07:47:03ZInvestigation on possibility of making durable paper with imported Eucalyptus pulp1735-09132383-112X10.22092/ijwpr.2009.117355https://doaj.org/article/1409a10dbee94c42acbe59b87ae57b902009-03-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_117355_fb518db94023729438c89471bfc54d87.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XPermanent or durable paper is a kind of paper that has a high degree of permanence and is likely to retain the properties which influence readability and document handling when storing in a protected environment for a long period. Permanence depends mainly on the chemical stability of the paper itself. Stability may be impaired by chemical reactions involving the paper's own components and by reactive agents from the environment and human being i.e., from air or filing enclosures. Poor chemical stability produces a chain reaction which in long term storage has a pronounced adverse effect on the mechanical or optical properties of the document. The main reactions causing mechanical deterioration are acid hydrolysis and oxidation. Yellowing is due to photochemical and thermal processes. Whatever the fibers used to make paper are longer , alkaline paper making is used , cationic elements such as Fe+2, Fe+3, Cu+2, Mn+2 and kappa number of pulp are minor, it is expected that the paper made is more permanent .In this research imported bleached Eucalyptus kraft pulp was used. The used pulp was refined according to tappi test method T248 cm-85 with PFI mill to reach freeness (300±25) CSF at number of beating revolutions 12000 .Hand sheets were made according to SCAN C25-65 standard with grammage 70.AKD sizing were used 2% oven dry weight of pulp and EDTA as chelating agent was used in concentrations 0 , 0.25 , 0.5 , 0.75 percent. For more assurance deionized water was used. furthermore, 20% calcium carbonate was used as residual alkaline and filler. Then hand sheets were laid under U.V radiation with wavelengths between 330 to 440 nm in 0,10, 20, 30, 40 and 50 hours interval and were conditioned in controlled temperature and relative humidity . pH of Extractive solutions were adjusted between 7 to 7.5 . At last, each strength indices were measured with three measurement frequencies and to compare the amount of mean strengths of produced handsheets, variation analysis (ANOVA) and Duncan test were used with SPSS software and the charts were drawn with Excel software.Alireza KhakifirozSeeyed Ahmad MirshokraieAmir homman HamasiHababalah KhadmieslamMohammad Talaei poorRegional Information Center for Science and Technology (RICeST)articledurable paperimported Eucalyptus pulpBREAKING LENGTHstrength indicesForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 24, Iss 1, Pp 44-57 (2009)
institution	DOAJ
collection	DOAJ
language	FA
topic	durable paper imported Eucalyptus pulp BREAKING LENGTH strength indices Forestry SD1-669.5
spellingShingle	durable paper imported Eucalyptus pulp BREAKING LENGTH strength indices Forestry SD1-669.5 Alireza Khakifiroz Seeyed Ahmad Mirshokraie Amir homman Hamasi Hababalah Khadmieslam Mohammad Talaei poor Investigation on possibility of making durable paper with imported Eucalyptus pulp
description	Permanent or durable paper is a kind of paper that has a high degree of permanence and is likely to retain the properties which influence readability and document handling when storing in a protected environment for a long period. Permanence depends mainly on the chemical stability of the paper itself. Stability may be impaired by chemical reactions involving the paper's own components and by reactive agents from the environment and human being i.e., from air or filing enclosures. Poor chemical stability produces a chain reaction which in long term storage has a pronounced adverse effect on the mechanical or optical properties of the document. The main reactions causing mechanical deterioration are acid hydrolysis and oxidation. Yellowing is due to photochemical and thermal processes. Whatever the fibers used to make paper are longer , alkaline paper making is used , cationic elements such as Fe+2, Fe+3, Cu+2, Mn+2 and kappa number of pulp are minor, it is expected that the paper made is more permanent .In this research imported bleached Eucalyptus kraft pulp was used. The used pulp was refined according to tappi test method T248 cm-85 with PFI mill to reach freeness (300±25) CSF at number of beating revolutions 12000 .Hand sheets were made according to SCAN C25-65 standard with grammage 70.AKD sizing were used 2% oven dry weight of pulp and EDTA as chelating agent was used in concentrations 0 , 0.25 , 0.5 , 0.75 percent. For more assurance deionized water was used. furthermore, 20% calcium carbonate was used as residual alkaline and filler. Then hand sheets were laid under U.V radiation with wavelengths between 330 to 440 nm in 0,10, 20, 30, 40 and 50 hours interval and were conditioned in controlled temperature and relative humidity . pH of Extractive solutions were adjusted between 7 to 7.5 . At last, each strength indices were measured with three measurement frequencies and to compare the amount of mean strengths of produced handsheets, variation analysis (ANOVA) and Duncan test were used with SPSS software and the charts were drawn with Excel software.
format	article
author	Alireza Khakifiroz Seeyed Ahmad Mirshokraie Amir homman Hamasi Hababalah Khadmieslam Mohammad Talaei poor
author_facet	Alireza Khakifiroz Seeyed Ahmad Mirshokraie Amir homman Hamasi Hababalah Khadmieslam Mohammad Talaei poor
author_sort	Alireza Khakifiroz
title	Investigation on possibility of making durable paper with imported Eucalyptus pulp
title_short	Investigation on possibility of making durable paper with imported Eucalyptus pulp
title_full	Investigation on possibility of making durable paper with imported Eucalyptus pulp
title_fullStr	Investigation on possibility of making durable paper with imported Eucalyptus pulp
title_full_unstemmed	Investigation on possibility of making durable paper with imported Eucalyptus pulp
title_sort	investigation on possibility of making durable paper with imported eucalyptus pulp
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2009
url	https://doaj.org/article/1409a10dbee94c42acbe59b87ae57b90
work_keys_str_mv	AT alirezakhakifiroz investigationonpossibilityofmakingdurablepaperwithimportedeucalyptuspulp AT seeyedahmadmirshokraie investigationonpossibilityofmakingdurablepaperwithimportedeucalyptuspulp AT amirhommanhamasi investigationonpossibilityofmakingdurablepaperwithimportedeucalyptuspulp AT hababalahkhadmieslam investigationonpossibilityofmakingdurablepaperwithimportedeucalyptuspulp AT mohammadtalaeipoor investigationonpossibilityofmakingdurablepaperwithimportedeucalyptuspulp
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Investigation on possibility of making durable paper with imported Eucalyptus pulp

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