The effects of peroxide bleaching on thermo-mechanical pulp self-sizing

Ness, Jeremy; Hodgson, Kevin T.

doi:10.3183/npprj-1999-14-02-p111-115

Cited by 3 publications

(1 citation statement)

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“…Though rosin size products ordinarily are not considered to be "reactive", there is evidence that, given sufficiently high temperature and time, the carboxyl groups on rosin can form esters with the hydroxyl groups on fiber surface (Swanson 1978;Zhuang et al 1997;Hodgson and Ness 1999;Ness and Hodgson 1999). Such ester-bound rosin cannot be extracted.…”

Section: Self-sizingmentioning

confidence: 99%

Paper's resistance to wetting - A review of internal sizing chemicals and their effects

Hubbe

2007

BioRes

100

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This review considers research related to internal sizing agents. Such chemicals, when added as emulsions or in micellar form to slurries of cellulosic fibers before paper is made, can make the product resist water and other fluids. Significant progress has been achieved to elucidate the modes of action of alkylketene dimer (AKD), alkenylsuccinic anhydride (ASA), rosin products, and other sizing chemicals. Recent findings generally support a traditional view that efficient hydrophobation requires that the sizing chemicals contain hydrophobic groups, that they are efficiently retained on fiber surfaces during the papermaking process, that they become well distributed on a molecular scale, and that they need to be chemically anchored. A variety of studies have quantified ways in which internal sizing treatments tend to be inefficient, compared to what is theoretically possible. The inefficient nature of chemical and physical processes associated with internal sizing, as well as competing reactions and some interfering or contributing factors, help to explain apparent inconsistencies between the results of some recent studies.

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Section: Self-sizingmentioning

confidence: 99%

Paper's resistance to wetting - A review of internal sizing chemicals and their effects

Hubbe

2007

BioRes

100

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Effect of Resin Acid and Hemicelluloses on Alkyl Ketene Dimer Sizing

Mourao

Zeno

Mauret

2011

Journal of Adhesion Science and Technology

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Changes with aging in the surface hydrophobicity of coated paper

Lidenmark¹,

Forsberg²,

Norgren³

et al. 2010

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Time-dependent changes in the surface properties of coated papers were studied as the evolution of surface hydrophobicity of laboratory and commercially coated papers. We measured the apparent contact angles on the papers during several weeks post-production. Hydrophobicity upon aging increased for all samples made from traditional coating colors on mechanical base stock and on base stock made from cotton linters. Accelerated aging by heat treatment intensified the increase of the apparent contact angles and accelerated the time-dependent behavior. A key mechanism in these changes may be the spreading of latex particles in a coating.

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The effects of peroxide bleaching on thermo-mechanical pulp self-sizing

Cited by 3 publications

References 0 publications

Paper's resistance to wetting - A review of internal sizing chemicals and their effects

Paper's resistance to wetting - A review of internal sizing chemicals and their effects

Effect of Resin Acid and Hemicelluloses on Alkyl Ketene Dimer Sizing

Changes with aging in the surface hydrophobicity of coated paper

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