Iranian Journal of Wood and Paper Science Research

Pulp and paper

The effect of heat ageing on color change and optical properties of bleached Chemi-Mechanical Pulp (CMP) with One and Two-stage of Sodium Hypochlorite and Hydrogen Peroxide

ghasem asadpour; fatemeh rajabi; seyed majid zabizadeh

Volume 33, Issue 4 , February 2019, , Pages 467-477

https://doi.org/10.22092/ijwpr.2018.121555.1471

Abstract

High yield and chemi-Mechanical pulps are susceptible to oxidation-optical and thermal reactions. These reactions result discoloration and brightness reversion in pulps. In this research, chemi-mechanical pulps were selected randomly from Mazandaran pulp and paper mill and were bleached separately by ... Read More

Pulp and paper

Investigation of Optical and Mechanical Properties of Bleached Chemi-mechanical Pulps (CMP) with Oxygen, Hydrogen Peroxide and Sodium Dithionite Stages

Ramin Vaysi; Mohammad reza Salimifar

Volume 32, Issue 3 , September 2017, , Pages 311-321

https://doi.org/10.22092/ijwpr.2017.105625.1330

Abstract

This study and it aim was accomplished on the effect of TCF bleaching on optical and mechanical properties of CMP pulp. For this purpose, some unbleached CMP pulps were randomly selected from Mazandaran Wood and Paper Industries (MWPI). Then these pulps were bleached with two and three OP, OPY, PY and ... Read More

Pulp and paper

Investigation and Comparison of Newsprint Properties from Bleached CMP Pulp of Ash and Orange Woods

Ramin Vaysi; Mohammad Nikkar; Hamidreza Salarian

Volume 31, Issue 4 , January 2017, , Pages 569-580

https://doi.org/10.22092/ijwpr.2016.106287

Abstract

In this study, the possibility of using ash and orange bleached CMP pulp as replace in the full or part of CMP pulp of Mazandaran Wood and Paper Industries (MWPI) for making newsprint was investigated. For this purpose, first, ash and orange CMP pulps were prepared by using cooking conditions of MWPI ... Read More

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Keywords = خمیر CMP

The effect of heat ageing on color change and optical properties of bleached Chemi-Mechanical Pulp (CMP) with One and Two-stage of Sodium Hypochlorite and Hydrogen Peroxide

Abstract

Investigation of Optical and Mechanical Properties of Bleached Chemi-mechanical Pulps (CMP) with Oxygen, Hydrogen Peroxide and Sodium Dithionite Stages

Abstract

Investigation and Comparison of Newsprint Properties from Bleached CMP Pulp of Ash and Orange Woods

Abstract