Monday, December 21, 2009

Reeling

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
1.Hank diameter
2.Hank weight
3.Hank traverse
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
swift circumferences:
1. Size 1 1.350 – 1.524 mm
2. Size 2 1.500 – 1.905 mm
• Size 3 1.800 – 2.337 mm

2.Yarn guide system
The yarn laying system has thread guides which are controlled electronically for changing the hank features , type of hanks and to select different crossing angles.

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,
rectangular
trapezoidal
cop-built
lea-hanks

A trapezoidal or tapered end hank
5.Hank positions
It is the number of hanks which can be made on the full machine ,with a particular set of parameters. The hank positions are less when the hank width or traverse is more.


6.Leasing system

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
double eight
one and a half eight
single eight
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
The traverse or width of hanks is important for a particular hank weight to get uniform results in further processing, generally a range from 80 mm to 380 mm is available from the different manufacturers.
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.

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4 comments:

  1. whom should i contact for the above machineries ?

    ReplyDelete
  2. Your contact,and requirement detail /

    ReplyDelete
  3. Reeling//hank making machines
    mob no +919972747669

    ReplyDelete

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