NDLI: Effect of chemical softening of coconut fibres on structure and properties of its blended yarn with jute

Content Provider	Springer Nature Link
Author	Mishra, Leena Basu, Gautam Samanta, Ashish Kumar
Copyright Year	2017
Abstract	Coconut fibres were subjected to chemical treatment to obtain softer and finer fibres, suitable to blend with other finer fibre like jute. The chemical softening recipe was optimized using Box-Behnken design of experiments as 40 % Na$_{2}$S, 10 % NaOH and 6 % Na$_{2}$CO$_{3}$, which notably reduced the fineness (33 %) and flexural rigidity (74 %) and improved tensile property of coconut fibre. Effect of softening of coconut fibre on its process performance was studied in high speed mechanized spinning system at different blend ratios with jute. Blending with jute assists in spinning of coconut fibre to produce yarn of 520 tex at production rate of 5-6 kg/h, as compared to 15 kg/day for hand spun 5300 tex raw coconut fibre yarn in manual system. Analysis of blended yarn structure in terms of packing density, radial distribution of fiber components (SEM) and mass irregularity were investigated. SEM shows yarns made from softened coconut fibre -jute blends are more compact than raw coconut fibre -jute blend yarns. Coconut fibres were preferentially migrated to core of the yarn. Major yarn properties viz., tensile strength, and flexural rigidity of raw and chemically softened blended yarns were compared against their finest possible 100 % coconut fibre yarn properties. Yarn made up to 50:50 chemically softened coconut fibre-jute blend showed much better spinning performance, and having superior property in terms of reduced diameter, higher compactness, strength, initial modulus and less flexural rigidity than 100 % raw, 100 % chemically softened coconut fibre rope, and raw coconut fibre-jute blend yarns.
Starting Page	357
Ending Page	368
Page Count	12
File Format	PDF
ISSN	12299197
Journal	Fibers and Polymers
Volume Number	18
Issue Number	2
e-ISSN	18750052
Language	English
Publisher	The Korean Fiber Society
Publisher Date	2017-02-28
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chemical softening, Coconut fibre, Blend yarn, Yarn structure, Properties Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Polymers and Plastics

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