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Evaluation of bast fibre retting systems on hemp

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conference contribution
posted on 2002-01-01, 00:00 authored by Christopher HurrenChristopher Hurren, Xungai Wang, H Dennis, A Clarke
In this paper the effect of eight different retting methods on decorticated hemp skins were analyzed. The methods were taken from six publications that looked at the retting of different bast fibres such as ramie, flax and kenaf. The fibres were batch retted in a package dye-vat at 100oC under 2 bar of pressure. The rinsed fibres were opened twice using a Shirley cotton trash separator. The opened fibre was assessed for fibre width, fibre width variation, colour and handle. It was found that the fibre that had undergone chemical retting with 7% Sodium Hydroxide (NaOH) and 0.5% Sodium Sulphite (Na2SO3) had the best diameter (18.39 micron) and the best coefficient of variation of diameter (57.32%). The fibre that was processed with 7% Sodium Hydroxide (NaOH) and 0.5% Sodium Sulphite (Na2SO3) had the whitest colour (YI D1925 = 31.61). The method treated with 1% Sodium Hydroxide (NaOH) and 1% Sodium Sulphite (Na2SO3) had the softest handle and the method treated with 1% Sodium Hydroxide (NaOH) and pre-rinsed with 0.3% Hydrochloric Acid (HCl) showed the best conversion of decorticated skins into spin able fibre (33.9% of dry green skins). It was decided that method treated with 1% Sodium Hydroxide (NaOH) and pre-rinsed with 0.3% Hydrochloric Acid (HCl) had the best fineness of fibre micron, conversion to spin able fibre (33.9% of dry green skins), whitest colour (YI D1925 = 36.13) and softest handle for the cost of chemicals involved.

History

Event

Textile Institute. Conference (82nd : 2002 : Cairo, Egypt)

Publisher

The Textile Institute

Location

Cairo, Egypt

Place of publication

[Manchester, England]

Start date

2002-03-23

End date

2002-03-27

ISBN-13

9781870372565

ISBN-10

1870372565

Language

eng

Notes

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupp@deakin.edu.au

Publication classification

E2 Full written paper - non-refereed / Abstract reviewed; E Conference publication

Copyright notice

2002, The Textile Institute

Title of proceedings

Through the eye of a needle, advances in fibre, fashion and fabric : Textile Institute : proceedings of the 82nd World Conference

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