Reeling or making of hanks
The Reeling is a procedure which converts yarn into commerically portable form. The outcome of reeling is called hanks or skeins. It is normally done after twisting/Winding to wrap yarn carefully for processing in hank form and unwinding it later. The reeled yarn is carefully tie-banded to control fibres during handling, scouring, Dyeing and unwinding.
These machines are used to convert the yarn in hank form .The hanks produced as per the quality of yarn ,further processing facility such as dyeing, drying ,hank to cone winding etc.
Mail characteristics of hanks are
4.Crossing angle such as diamond.
5.Formation of hank such as rectangular ,trapezoidal, cop built or lea hanks.
Main features of a reeling machine
1.Swift and its circumference setting
Hanks of various sizes such as weight ,circumference, width and make up are used depending upon the substrate quality (cotton, viscose, silk, wool, acrylic etc ), physical and aesthetic features of the yarn, end use ,further processing machinery set up such as mercerizing, dyeing ,hydro extraction , drying and hank to cone winding. Generally 54 “(1370 mm) to 90 “(2286 mm) circumference hanks are used
In most of the cases the swift of the machine is adjustable to accommodate the different circumferences or swift sets are available for particular ranges such as in crune luke machines 3 different sets are available
1. Size 1 1.350 – 1.524 mm
2. Size 2 1.500 – 1.905 mm
• Size 3 1.800 – 2.337 mm
3.Hank doffing system
The doffing could be manual or automatic after the completion of hanks.
4.Hank parameter setting or type of hank
Different types of hank formation or lay out can be made depending upon the type of yarn and further processing machinery such as,
A trapezoidal or tapered end hank
Leasing is tying the hanks at various places(1-6) with stronger threads or yarns by inserting the thread throughout the traverse at selected points. Generally leasing in the hanks is done manually to keep them intact in the further processing such as mercerizing, dyeing, hydro extraction, drying and to facilitate efficient and trouble free hank to cone winding. There are different systems for leasing as shown below
in crune luke machine automatic leasing system CLT is available.
7.Length measuring system
Modern reeling machines are equipped with length measuring devices to keep the yarn length
constant from one hank to another ,to get a uniform hank weight for better results in further
processing such as dyeing and to make uniformsize packages in hank to cone winding.
8.Hank width setting or traverse
9.Yarn tension control system
The yarn tension from the feed package is regulated to get the uniform reeling results and precise winding in all the hanks. Modern reeling machines are equipped with automatic yarn tension control system
10.Reeling speed and maximum obtainable hank weight.
The reeling speed depends upon the number of factors such as type of yarn and required hank weight and circumference. The machines are available with a maximum winding speed up to 1500 m/min. Hank weight is also decided by the set up of further processing machinery as well as the type of yarn processed . The maximum hank weight as per the different manufacturers is up to 2.5 kg . For mercerized cotton yarn a weight of 1-1.5 kg is generally adopted.
11.Crossing angle and diamond
It is distinct characteristic of hank for uniform dyeing and efficient hank to cone operations. It could be selected in a step less manner or diamond formation as shown below from 1:1 to 1:6.
12. Splicing and yarn clearing system
To avoid the manual knotting in case of yarn breakage and yarn faults to be carried forward in further processing.