An Improved Sample Holder for the Martindale Abrasion Tester

Allen, L. A.

doi:10.1080/00405007908658799

Cited by 4 publications

(1 citation statement)

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“…These results illustrate that it is possible to treat wool with a high concentration of alkali without causing detectable damage, provided that anhydrous or nearly anhydrous conditions are employed. Furthermore, in the earlier experiments 18,9], samples treated using more severe con- also showed no visible change when viewed under the s.e.m., no detectable weight loss and no alteration in the Allworden reaction. Moreover, unlike the alcoholic alkali treatments of Lagermalm and Philip I 151, these treatments did not perforate the epicuticle, as judged by the unchanged Allworden reaction.…”

Section: Resultsmentioning

confidence: 85%

Changes Induced in the Properties of Wool by Specific Epicuticle Modification

Leeder

Rippon

1985

Journal of the Society of Dyers and Colourists

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The treatment of wool under anhydrous (non‐swelling) conditions with potassium tert‐butoxide dissolved in tert‐butanol was studied. The aim was to confine reaction with the alkaline reagent to the outer surface of the fibre, thus preventing whole‐fibre degradation. It appears that the a/koxide specifically reacts with, or cleans, the extreme exterior of the epicuticle membrane, removing lipid material but leaving the chemically inert epicuticle intact. The treatment increases inter‐fibre and inter‐yarn friction, tensile strength and wettability. The absence of whole‐fibre degradation is shown by the unchanged dye uptake and abrasion resistance. The apparent specificity of the reaction has led us to propose that a distinctive, bound, fatty layer, tentatively called the ‘F‐layer’, is involved in the mechanism. The polar surface generated by the treatment results in improvements in several properties, such as shrink resistance, printabi/ity and electrical conductivity, and an increase in the effectiveness of shrinkproofing polymers.

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Section: Resultsmentioning

confidence: 85%

Changes Induced in the Properties of Wool by Specific Epicuticle Modification

Leeder

Rippon

1985

Journal of the Society of Dyers and Colourists

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An Improved Sample Holder for the Martindale Abrasion Tester

Woolliscroft

1980

The Journal of The Textile Institute

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The Effect of Treatment with Perchloroethylene on the Abrasion Resistance of Wool Fabric

Rippon

Leeder

1986

Journal of the Society of Dyers and Colourists

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The Martindale flat‐abrasion resistance (MAR) of lightweight wool worsted fabric is improved by treatment with non‐polar chlorinated solvents, including perchloroethylene. The rate at which the improvement is obtained with perchloroethylene is temperature dependent, but the optimum effect is obtained only by prolonged extraction, even at high temperature (e.g. 2 h at 80°C). A small increase in MAR is, however, obtained by solvent scouring in a commercial dry cleaning machine at 30–35°C. The improvement in MAR induced by treatment with perchloroethylene has been shown to involve extraction of internal lipids. The most likely source of the lipids is the cell membrane complex; their removal is believed to improve MAR because of a subsequent increase in intercellular adhesion. The improvement in MAR obtained by perchloroethylene treatment is stable to mild finishing procedures, but the magnitude of the improvement is decreased by dyeing at the boil. However, except for samples dyed at pH values less than pH 3, the MAR values of the solvent‐treated samples are higher than the values for the untreated and dyed‐only material.

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An Improved Sample Holder for the Martindale Abrasion Tester

Cited by 4 publications

References 1 publication

Changes Induced in the Properties of Wool by Specific Epicuticle Modification

Changes Induced in the Properties of Wool by Specific Epicuticle Modification

An Improved Sample Holder for the Martindale Abrasion Tester

The Effect of Treatment with Perchloroethylene on the Abrasion Resistance of Wool Fabric

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