Fibre hanks

The fibre that spins into the finest yarn is considered to be of very good quality. Jute fibre is marketed in bundles of fibre hanks. A fibre hank is composed of about 10-15 fibre reeds obtained from 10-15 plants. Each fibre reed is composed of thousands of fibre strands made of ultimate fibres with lignin and pectic substances, the cementing materials. Commercially, fibre... 

In addition to having an effect on the rate of dyeing, cationic retarders will assist migration to an extent that depends on the fibre and the substantivity of the dyes. Retarders tend to diffuse more quickly than dyes and to be absorbed at lower temperatures (typically 65-70 °C, compared with 80-85 °C), although the magnitude of these effects will depend on the structure and properties of both retarder and dye. In some cases, such as hank dyeing on machines with poor circulation or inadequate temperature control, it may be preferable to use a retarder that almost totally restrains the uptake of dye until the top temperature has been reached, after which dye sorption takes place gradually. 

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