6—the Evaluation of Carpets Made From Experimental Wools

Ince, J.; Ryder, M. L.

doi:10.1080/00405008408658460

Cited by 10 publications

(2 citation statements)

References 3 publications

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“…Breed differences in the level of medullation are well known (Krishnarao et al 1960;Ince & Ryder 1984). They range from the specialty carpetwool breeds in which almost every fibre contains a medulla to the Merino which carry fleeces that are essentially free of medullated fibres.…”

Section: Introductionmentioning

confidence: 99%

Medullation and average fibre diameter vary independently in the wool of Romney sheep

Scobie

Bray

Merrick

1998

New Zealand Journal of Agricultural Research

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The proportion of medullation was less in wool from a line of Romney sheep selected for High staple tenacity (HST) than in one selected for Low staple tenacity (LST) (1.15% versus 1.58% in 1991-born ram hoggets, P < 0.076; 1.90% versus 3.10% in 1992-born ewe hoggets, P< 0.001). This occurred despite the HST line having the greater mean fibre diameter (ram hoggets 35.2 versus 33.1 μm, P < 0.001 ; ewe hoggets 35.1 versus 31.8 μm, P < 0.001 ). Rams from the selection lines were fed diets containing high and low levels of protein and energy. During the treatment period, the high protein diets increased average fibre diameter by 14% (P < 0.001) and the proportion of medullation to 5.6% compared with 3.8% for the low protein diets (P < 0.001). During the post-treatment period, fibre diameter was 12% higher in the groups fed the high protein diet relative to the low protein diet (P < 0.001), but the proportion of medullation fell to 4.9% for the high protein diets, increased to 4.4% for the low protein low energy diet, and fell slightly for the low protein high energy diet (P < 0.067). The results of these experiments indicate that the proportion of medullation in Romney wool can vary independently of average fibre diameter.

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Section: Introductionmentioning

confidence: 99%

Medullation and average fibre diameter vary independently in the wool of Romney sheep

Scobie

Bray

Merrick

1998

New Zealand Journal of Agricultural Research

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“…In this test, required number of abrasion or wear cycles to complete removal of tufts was calculated. Ince and Ryder (1984) presented the empirical…”

Section: Introductionmentioning

confidence: 99%

Useful life prediction of woolen hand-knotted carpets using multivariate multiple regression

Tabatabaei¹,

Ghane

Hamadani

et al. 2016

The Journal of The Textile Institute

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In this study, the main purpose is to predict the useful life of woolen hand-knotted carpets using multivariate multiple regression. Thickness loss of surface pile yarns and compression toughness index were chosen as representative of the compression properties. Also, color difference index (ΔE) of pile yarns, tuft size index, and evenness of texture index were considered as representative of the appearance characteristics. Eighteen woolen hand-knotted carpet samples (symmetric knot) with different structural specifications were produced. The carpet samples were subjected to 4000, 8000, and 12000 drum revolutions (wear factor) using a Hexapod tumbler tester and functional properties of samples were investigated in original and worn out carpet samples. At first, the effective variables were selected using multivariate test, and then multivariate analysis of variance was used for evaluating the significance of obtained models. Optimal separate equations of the functional properties on hand-knotted carpets were determined through multivariate multiple regression method. Reverse model of wear factor can be considered as a proper equation to predict the useful life of carpets.

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Modelling of Tunisian hand-made carpet resilience under long static loading using fuzzy expert system

et al. 2017

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6—the Evaluation of Carpets Made From Experimental Wools

Cited by 10 publications

References 3 publications

Medullation and average fibre diameter vary independently in the wool of Romney sheep

Medullation and average fibre diameter vary independently in the wool of Romney sheep

Useful life prediction of woolen hand-knotted carpets using multivariate multiple regression

Modelling of Tunisian hand-made carpet resilience under long static loading using fuzzy expert system

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