Volume 39 (2024-2025)
Volume 38 (2023-2024)
Volume 37 (2022-2023)
Volume 36 (2021-2022)
Volume 35 (2020-2021)
Volume 34 (2019-2020)
Volume 33 (2018-2019)
Volume 32 (2017-2018)
Volume 31 (2016-2017)
Volume 30 (2015-2016)
Volume 29 (2014-2015)
Volume 28 (2013-2014)
Volume 27 (2012-2013)
Volume 26 (2011-2012)
Volume 25 (2010-2011)
Volume 24 (2009-2010)
Volume 23 (2008-2009)
Volume 22 (2007-2008)
Volume 21 (2006-2007)
Volume 20 (2005-2006)
Volume 19 (2004-2005)
Volume 18 (2003-2004)
Volume 17 (2002-2003)
Volume 16 (2002-2003)
Volume 15 (2001-2002)
Volume 14 (2001-2002)
Volume 13 (2001)
Volume 12 (2000-2001)
Volume 11 (2000-2001)
Volume 10 (2000-2001)
Volume 9 (2000)
Volume 8 (1999)
Volume 7 (1999)
Volume 6 (1998)
Volume 5 (1998)
Volume 4 (1997)
Volume 3 (1997)
Volume 2 (1996)
Volume 1 (1995)
Pulp and paper
Use of Central Composite Design for Optimization of ultrasonic pre-treatment parameters on chemical deinking of old newspaper

Seyed Hassan Sharifi; nouredin Nazarnezhad

Volume 33, Issue 4 , February 2019, , Pages 489-500

https://doi.org/10.22092/ijwpr.2018.122366.1480

Abstract
  To reuse recycled cellulosic fibers in paper production, contaminated particles and other impurities of the fibers can be greatly removed using a de-inking stage which is considered as a supplementary step in waste paper recycling technology. The effect of using ultrasonic pretreatment on the deinking ...  Read More

Pulp and paper
Enzymatic Versus Chemical Deinking of Old Newspaper

Iman Akbarpoor; Hossein Resalti; Ahmad reza Saraeyan

Volume 25, Issue 2 , September 2018, , Pages 223-233

https://doi.org/10.22092/ijwpr.2010.117292

Abstract
  In this study, Deinking of old newspaper was investigated by chemical and enzymatic methods. Chemical treatment was done using chemicals at different times of 10, 20 and 30 minutes, consistency of 10%, temperature of 50±1!C along with washing, flotation and combination of washing/flotation. While, ...  Read More

The effect of different charges of sodium dithionite and bleaching times on the optical and mechanical properties and COD of bleached recycled mixed ONP and OMG pulps

Hamid reza Mehri Iraie; Ali Ghasemian; Hossein Resalati; Ahmad reza Saraeyan; Iman Akbarpour

Volume 29, Fall 3 , November 2014, , Pages 411-421

https://doi.org/10.22092/ijwpr.2014.6212

Abstract
  This research was conducted to investigate the bleaching of combined old newspapers (ONP) and old magazines (OMG) deinked pulp using sodium dithionite. The pulp was bleached using 0.5, 0.75, and 1% sodium dithionite and different times of 30, 60 and 90 minutes. The pulps were then refined to 300 ml, ...  Read More

The effect of poly acrylic acid, sodium salt grafted to poly ethylene oxide complex on the physical and optical properties of old newsprint paper deinked pulp

Ahmad reza Saraeian; Mozhdeh Mashkour

Volume 28, Issue 3 , October 2013, , Pages 405-416

https://doi.org/10.22092/ijwpr.2013.3346

Abstract
  Considering the problems initiated by sodium silicate on reducing the life expectancy of processing equipments and paper strength, recycling of old newspaper using Poly (acrylic acid), Sodium Salt Grafted to Poly (ethylene oxide) complex were investigated. The organic complex was used at 0.3, 0.5, 0.7, ...  Read More

Investigation on the physical and mechanical properties of waste newspaper deinked pulp by cellulase enzyme compared to conventional method

Iman Akbarpoor; Hossein Resalati; Ahmad reza Saraeian

Volume 26, Issue 2 , June 2011, , Pages 243-255

https://doi.org/10.22092/ijwpr.2011.117183

Abstract
  In this study, deinking of waste newspaper was investigated by conventional and enzymatic methods. Conventional deinking was done in pulping times of 10, 20 and 30 minutes along with different processes of washing, flotation and combined washing/   flotation. Enzymatic deinking was accomplished ...  Read More

Pulp and paper
Effect of refining of deinked pulp on the optical, physical and mechanical properties of paper

Mohammad Talaei poor

Volume 24, Issue 1 , September 2009, , Pages 148-157

https://doi.org/10.22092/ijwpr.2009.117364

Abstract
  The effect of refining of recycled pulp on the optical, physical and mechanical properties of paper was investigated.The results showed that, except tear strength, all of mechanical strength of paper significantly increases by refining.While, by refining of recycled pulp the brightness increases but ...  Read More