Investigation on newsprint paper production from wheat straw and its specification

In this study, production of bleached chemical- mechanical pulp from wheat straw for newsprint papermaking was investigated. Wheat straw for pulping was obtained from Lorestan province. Wheat straw CMP pulp was prepared at 120, 140, and 160 °C temperature, 45 minute time, 10, 12, and 14% chemicals c...

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Autores principales:	Afshin Veisi, Saeed Mahdavi, Mohammad Talaeipoor
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2015
Materias:	WHEAT STRAW CMP Pulp yield bleaching newsprint Optical properties Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/bfb9937a82f442e4b92aac6b926b1036
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spelling	oai:doaj.org-article:bfb9937a82f442e4b92aac6b926b10362021-12-02T06:41:16ZInvestigation on newsprint paper production from wheat straw and its specification1735-09132383-112X10.22092/ijwpr.2015.12924https://doaj.org/article/bfb9937a82f442e4b92aac6b926b10362015-06-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_12924_7d6f68bdb6e2ae6a78314a0c33d3ba04.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XIn this study, production of bleached chemical- mechanical pulp from wheat straw for newsprint papermaking was investigated. Wheat straw for pulping was obtained from Lorestan province. Wheat straw CMP pulp was prepared at 120, 140, and 160 °C temperature, 45 minute time, 10, 12, and 14% chemicals charge and 10:1 cooking liquor and straw ratio. The yield after defibration treatment varied between 56.5% and 72.5%. Two optimum pulps bleached by TCF method applying 2% and 3% NaOH, 1.5% and 2% H2O2, and 60 and 120 minutes bleaching time. One way analysis variance method showed that bleaching time had the most significant effect on optical properties of handsheet. Applying 3% (based on oven dry weight of the unbleached pulp) NaOH, 2% H2O2, and 120 min. in bleaching improved the brightness and opacity to 52.9%, and 79.5% ISO, respectively. Optimum pulp strengths including tensile, burst and tear indices were measured 43.87 Nm/g, 2.18 kPa.m2/g, and 8.46 mN.m2/g, respectively. All the strengths were higher than newsprint paper strength produced by Mazandaran wood and paper and Korean companies.Afshin VeisiSaeed MahdaviMohammad TalaeipoorRegional Information Center for Science and Technology (RICeST)articleWHEAT STRAWCMP PulpyieldbleachingnewsprintOptical propertiesForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 30, Iss 2, Pp 320-329 (2015)
institution	DOAJ
collection	DOAJ
language	FA
topic	WHEAT STRAW CMP Pulp yield bleaching newsprint Optical properties Forestry SD1-669.5
spellingShingle	WHEAT STRAW CMP Pulp yield bleaching newsprint Optical properties Forestry SD1-669.5 Afshin Veisi Saeed Mahdavi Mohammad Talaeipoor Investigation on newsprint paper production from wheat straw and its specification
description	In this study, production of bleached chemical- mechanical pulp from wheat straw for newsprint papermaking was investigated. Wheat straw for pulping was obtained from Lorestan province. Wheat straw CMP pulp was prepared at 120, 140, and 160 °C temperature, 45 minute time, 10, 12, and 14% chemicals charge and 10:1 cooking liquor and straw ratio. The yield after defibration treatment varied between 56.5% and 72.5%. Two optimum pulps bleached by TCF method applying 2% and 3% NaOH, 1.5% and 2% H2O2, and 60 and 120 minutes bleaching time. One way analysis variance method showed that bleaching time had the most significant effect on optical properties of handsheet. Applying 3% (based on oven dry weight of the unbleached pulp) NaOH, 2% H2O2, and 120 min. in bleaching improved the brightness and opacity to 52.9%, and 79.5% ISO, respectively. Optimum pulp strengths including tensile, burst and tear indices were measured 43.87 Nm/g, 2.18 kPa.m2/g, and 8.46 mN.m2/g, respectively. All the strengths were higher than newsprint paper strength produced by Mazandaran wood and paper and Korean companies.
format	article
author	Afshin Veisi Saeed Mahdavi Mohammad Talaeipoor
author_facet	Afshin Veisi Saeed Mahdavi Mohammad Talaeipoor
author_sort	Afshin Veisi
title	Investigation on newsprint paper production from wheat straw and its specification
title_short	Investigation on newsprint paper production from wheat straw and its specification
title_full	Investigation on newsprint paper production from wheat straw and its specification
title_fullStr	Investigation on newsprint paper production from wheat straw and its specification
title_full_unstemmed	Investigation on newsprint paper production from wheat straw and its specification
title_sort	investigation on newsprint paper production from wheat straw and its specification
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2015
url	https://doaj.org/article/bfb9937a82f442e4b92aac6b926b1036
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Investigation on newsprint paper production from wheat straw and its specification

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