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
Barrier and Structural Properties of Coated Trimethoxymethylsilane Layer on Coated Paper with Ethylene Vinyl Alcohol

somayeh heydari; Ahmad Reza Saraeyan; Mohamadreza Dehghani firozabadi; Alireza Shakeri; babak shokri

Volume 34, Issue 2 , August 2019, , Pages 255-262

https://doi.org/10.22092/ijwpr.2019.126869.1557

Abstract
  Ethylene vinyl alcohol (EVOH) copolymer is of semi crystalline materials with excellent barrier properties to gases. Also, it has shown outstanding chemical resistance. Despite its low gas permeability, EVOH copolymer displays poor water and water vapor resistance. In this study, Trimethoxymethylsilane ...  Read More

Pulp and paper
Optimization of Coating Dimethoxydimethylsilane Using Plasma Enhanced Chemical Vapor Deposition (PECVD) on Coated Paper with Ethylene Vinyl Alcohol

somayeh heydari; Ahmad Reza Saraeyan; Mohammad Reza Dehghani Firouzabadi; Alireza Shakeri; babak shokri

Volume 34, Issue 1 , April 2019, , Pages 100-111

https://doi.org/10.22092/ijwpr.2019.124339.1506

Abstract
  DOR:98.1000/1735-0913.1398.34.100.66.1.9.1604 In this study, EVOH was coated on paper made of CMP pulp by extrusion method in order to improve the paper's barrier properties of oxygen transmission. Ethylene vinyl alcohol (EVOH) shows poor moisture resistance despite less gas permeability. Then, dimethoxydimethylsilane ...  Read More

Pulp and paper
Investigate the effect of anionic trash management through removal and neutralization of dissolved and colloidal substances (DCS) On properties of CMP pulp and paper

Moghadaseh Akbari; Hossein Resalati; Ahmad reza Saraeyan; Mohammad reza Dehghani Firoz Abadi

Volume 33, Issue 3 , September 2018, , Pages 323-336

https://doi.org/10.22092/ijwpr.2018.106563.1347

Abstract
  During the paper manufacturing process, especially when mechanical pulp or recycled pulp used, a large amount of soluble and colloidal substances (DCS) are comprised and dispersed or dissolved in the process water. Accumulation of DCS during the papermaking operation with the increasing closure process ...  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

Pulp and paper
Effect of Coating on Paper made from bagasse soda pulp with Biodegradable Polymer

Ahmad reza Saraeyan; Somayeh Heidari; Ahmad reza Shakeri

Volume 31, Summer 2 , May 2016, , Pages 204-210

https://doi.org/10.22092/ijwpr.2016.105615

Abstract
  Increased environmental concerns over the use of certain synthtic packaging in combination with consumer demands led to increased interest in alternative packaging materials research. Paper is biodegradable and widely used in packaging applications therefore perfectly safe for the environment. In an ...  Read More

Pulp and paper
Investigating the effect of using oxygen delignification process on bagasse soda pulp properties

Farhad Zeinaly; Ahmad Reza Saraeian; Mohammadhadi Aryaei monfared; Ali Kazemi Tabrizi

Volume 31, Summer 2 , May 2016, , Pages 261-279

https://doi.org/10.22092/ijwpr.2016.105774

Abstract
  In conducting environmentally friendly processes for pulp production, first step is to reduce the effluent pollution load in each stage, and because the bleaching process is the most polluting stage in the production of pulp, improving it is one of the most important matters. The first act to ameliorate ...  Read More

Pulp and paper
The effect of using deinked mixed office waste pulp on the properties of Alkaline Proxide Mechanical Pulp from cotton stalk

Mehrnoosh Tavakoli; saraeyan ahmad reza; hossein resalati; ali ghasemian

Volume 31, SPRING 1 , March 2016, , Pages 48-57

https://doi.org/10.22092/ijwpr.2015.105608

Abstract
  The present study was carried out aiming to investigate the effect of using Deinked Mixed Office Waste Pulp (MOW) on the properties of Alkaline Peroxide Mechanical Pulp (APMP) from cotton stalk.  APMP pulps was prepared using chelating agents such as Na2SiO3 and DTPA (control sample) and without ...  Read More

Chemical conversion
Optimum Production of Cellulose NanoCrystal from Cotton Stalk under Acidic Hydrolysis Condition

mahdiye mazandarani; ali ghasemian; ahmadreza Saraeyan; mahdi mashkour; SeyedRahman Jafari Petroudy

Volume 30, SPRING 1 , May 2015, , Pages 1-13

https://doi.org/10.22092/ijwpr.2015.10780

Abstract
  In the present study, preparation of cotton stalk (Sahel variety) as one of the common agricultural residues was studied through three stages as Soda-AQ chemical pulping, delignification and alkaline treatment, aiming for the production of cellulose nanocrystal. In order to identify the optimum condition ...  Read More

Effect of bark content on physical and mechanical properties of the kraft pulp from chips Populus deltoids

Zinat Farhadi; Ahmad reza Saraeian; Mohammad reza Dehghani firuzabadi

Volume 29, WINTER 4 , February 2015, , Pages 503-514

https://doi.org/10.22092/ijwpr.2014.8473

Abstract
  This study was done to investigate the effect of bark content on the physical and mechanical properties of kraft pulp from chips Ppopulous deltoids. Three tree of the populous deltoids from the same age were randomly selected cut from Shastkalate research forest Gorgan. A disc was taken from each tree. ...  Read More

Physics and anatomy
Effect of boiling water pre-treatment on the yield, physical, optical and mechanical properties of neutral sulfite semi chemical pulp from wheat straw

ahmad saraiyan; soodeh zhand

Volume 29, Fall 3 , November 2014, , Pages 422-433

https://doi.org/10.22092/ijwpr.2014.6135

Abstract
  In this study, the effect of boiling water pre-treatment on yield, optical, physical and mechanical properties of NSSC (Neutral Sulfite Semi Chemical) pulp from Zagroos wheat straw (Golestan province) was investigated. Chopped wheat straw was pretreated in boiling water for 30 minutes, water to straw ...  Read More

Comparison of hot water and alkaline pre-treatments on the properties of wheat straw NSSC pulp

Soodeh Zhand; Masih Masoudifar; Ahmad reza Saraeian; Ali Ghasemian

Volume 28, Issue 4 , January 2014, , Pages 774-794

https://doi.org/10.22092/ijwpr.2014.4467

Abstract
  The purpose of this study was to compare the properties of wheat straw (Zagros sp) collected in Golestan province NSSC pulp under alkaline pretreatment with 1% sodium hydroxide and boiling pretreatment. Wheat Straw pretreatment with 1% sodium hydroxide and hot water at water to straw ration of 10 to ...  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

Effect of alkaline pre-treatment on physical, optical and mechanical properties of semi-chemical NSSC wheat straw pulp

Soodeh Zhand; Masieh Masoudifar; Ahmad Reza Saraeian; Ali Ghasemiyan

Volume 28, Summer 2 , June 2013, , Pages 366-380

https://doi.org/10.22092/ijwpr.2013.2952

Abstract
  In this study the effect of alkaline pretreatment with 1% NaOH on physical, optical and mechanical properties and refining of NSSC (Neutral Sulfite Semi Chemical) wheat straw pulp were investigated. The wheat straw (Zagros Sp.) was obtained from croplands Golestan province. Splinted wheat straw was pretreated ...  Read More

Study of variation trends of fiber dimensions in longitudinal direction of Zagross wheat straw in Golestan province for papermaking

Saeid Kamrani; Ahmad reza Saraeian; Hossein Resalati; Ali Ghasemian

Volume 27, Issue 3 , September 2012, , Pages 545-555

https://doi.org/10.22092/ijwpr.2012.116218

Abstract
  The main objective of this study was to determine the trends of fiber dimension variation along the longitudinal direction of wheat straw as a criteria for papermaking. Zagross wheat straw was collected from the agricultural and natural resources research center, Golestan province .The fiber biometric ...  Read More

Comparing the effect of alkali charge and treatment time on the properties of bagasse and eastern cottonwood cold soda pulp

Sabah Ashrafi birghani; Ahmadreza Sraeyan

Volume 27, Issue 1 , March 2012, , Pages 16-26

https://doi.org/10.22092/ijwpr.2012.117076

Abstract
  The purpose of this study was to compare the effects of various concentrations of sodium hydroxide and treatment times on the properties of bagasse and Eastern cottonwood (Populus deltoids) cold soda pulp and paper. The cold soda pulp was prepared using various concentrations of sodium hydroxide (5, ...  Read More

Pulp and paper
The effects of pre-treatment and consistency on treatment time and brightness of bagasse alkaline peroxide mechanical pulp

Saeideh Sharifi; Ahmad reza Saraeyan; Hossein Resalati

Volume 27, Issue 1 , March 2012, , Pages 143-155

https://doi.org/10.22092/ijwpr.2012.117097

Abstract
  Preparation and pre-treatment of raw material influences the pulp production time and color elimination.  Pulp consistency during the treatment also influences the color reaction. In the preparation of the APMP pulp, bagasse was pretreated by either boiling water, 1% NaOH as well as 1% NaOH + 1% ...  Read More

Physics and anatomy
Biometrical properties of hornbeam fibers from Astara

Meisam Aliabadi; Eiman Akbarpoor; Ahmadreza Saraeyan; Jalil Roshnasan

Volume 26, Issue 3 , September 2011, , Pages 535-544

https://doi.org/10.22092/ijwpr.2011.117234

Abstract
  This research was performed to investigate fiber biometrical properties (length, diameter and fiber thickness) of hornbeam species from Astara in Iran. Initially, disks were prepared with three trees of hornbeam species and then fiber isolation was carried out using Franklin method. Length, diameter ...  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

Physics and anatomy
Investigating morphological and chemical characteristics of tobacco stalk

Jalal Shakhes; Ahmad reza Saraeyan; Farhad Zynali

Volume 26, Issue 2 , June 2011, , Pages 339-351

https://doi.org/10.22092/ijwpr.2011.117192

Abstract
  This work investigated effect of height and cultivar on morphological properties of bast and core fiber of tobacco stalk (Nicotiana tabacum). Also, in this research cultivar effect on chemical properties of tobacco stalk were investigated. Selected cultivars include Barley and Virginia, and investigative ...  Read More

Investigation of the properties of alkline peroxide mechanical pulp(APMP) from Cotton Stalk

Hossein Shob chary; Ahmad reza Saraeyan; Ali Ghasemian

Volume 26, Issue 1 , March 2011, , Pages 98-116

https://doi.org/10.22092/ijwpr.2011.117113

Abstract
   This study was conducted to investigate the properties of cotton stalks APMP pulp. APMP prepared from chipped cotton stalks. the pulps were prepared separately from debarked and bark containing stalks using three two-stage treatments.Sodium hydroxide charge as a constant level of 4% and hydrogen ...  Read More

Investigation on the Application of the Organic Complex " Sulvy-x " in Peroxide Bleaching of Hornbeam CMP Pulp

Meisam Aliabadi; Eiman Akbaepoor; Ahmad reza Saraeian

Volume 26, Issue 1 , March 2011, , Pages 117-127

https://doi.org/10.22092/ijwpr.2011.117153

Abstract
  In this study, the effect of organic complex "sulvy-x" on the optical properties of hornbeam CMP pulp bleached with hydrogen peroxide was investigated. Sulvy-x was used in two sequences silicate-free and silicate containing in hydrogen peroxide bleaching. The brightness of papers increased to 60.52 and ...  Read More

Pulp and paper
Studying from the Properties of Chemi-Mechanical Pulping and Alkaline Peroxide Mechanical Pulping of Wheat Straw Golestan province

Saeid Kamrani; Ahmad reza Saraeyan; Eyman Akbarpoor

Volume 25, Issue 1 , September 2010, , Pages 32-47

https://doi.org/10.22092/ijwpr.2010.117264

Abstract
  In this study, mechanical and optical properties of CMP, one stage APMP and two stage APMP pulps ( from Tajan wheat straw Golestan province ) were investigated. wheat straw collected at research center of Agriculture and Natural resources of Golestan province. Fiber dimensions such as average fiber length ...  Read More

Pulp and paper
Comparative study of delignification efficiency and pulp yield of heart wood and sap wood of Populus deltoids by kraft and soda processes

Somayeh Ghasemi; Ahmad reza Saraeyan

Volume 25, Issue 1 , September 2010, , Pages 138-146

https://doi.org/10.22092/ijwpr.2010.117275

Abstract
  Comparative study of pulp yield of sap wood and heart wood of Populus deltoides under both Kraft and soda cooking process have been showed that the heart wood pulp has a lower yield than that of sap wood pulp. Yield of heart wood and sap wood soda pulps was 4 percentages higher than Kraft pulp. Contrary ...  Read More

Pulp and paper
Study on the mechanical and optical properties of kraft liner paper produced from mixing of OCC and virgin hardwoods kraft pulp

Ali Khalili gasht rodkhani; Ali Ghasemian; Ahmad reza Saraeyan; Mohammad Dahmardeh ghale no; Sayed mehdi Manzorolajdad

Volume 24, Issue 2 , October 2009, , Pages 264-274

https://doi.org/10.22092/ijwpr.2009.117383

Abstract
  This study was aimed to investigate the effects of mixing OCC fibers with mixed hardwoods kraft pulp at Iran Wood and Paper Industry Co (Chuka). OCC has been repulped according to the common method in paper recycling industry and its freeness, along with that of virgin kraft pulp, were measured. The ...  Read More

Pulp and paper
Effects of xylanase on optical properties of bagasse kraft pulp in ECF bleaching

Hossein Resalti; Morteza Abdolah bik marandi; Ahmad reza Saraeyan

Volume 24, Issue 2 , October 2009, , Pages 295-306

https://doi.org/10.22092/ijwpr.2009.117387

Abstract
  The effect of using commercial xylanase enzyme in prebleaching of bagasse kraft pulp was investigated. Xylanase enzyme from Trichoderma viride was added to pulp at various doses of 10, 25 and 50 IU/g pulp for reaction time 2h and then the enzyme treated pulp was bleached in ADED sequences (Acid sulfuric ...  Read More