Type of yarn package
1.
Parallel wound package:
(a) warp yarn, (b) weavers yarn
2.
Near parallel wound package:
(a) pirn, (b) cop, (c) Flanged bobbin.
3.
Cross wound package:
(a)
cone, (b) cheese, (c) spool
1. Parallel package or parallel winding:
This
comprises threads laid parallel to one another as in a warp beam. It is
necessary to have a flanged package or beam; otherwise the package would not be
stable and would collapse
Advantages:
1.
Many yarn can be wound at a time.
2.
No need of traversing mechanism.
3.
Side withdrawal is possible.
4.
The density of yarn is more.
5.
No change of number of turns per inch.
Disadvantages:
1.
Two sides of the package need flanged.
2.
for yarn
3.
Cannot be over withdrawal.
2. Near parallel wound package:
This
package comprises one or more threads which are laid very nearly parallel to
the layers already existing on the package
Advantages:
Advantages:
1.
No need of flanged
2.
Can be side withdrawal.
3.
No change of number of yarn turns per inch during winding.
Disadvantages:
1. Need of traversing
mechanism
2. Cannot be over
withdrawal
3. Cross wound package:
This
type usually consists of a single thread which is laid on the package at an
appreciable helix angle so that the layers cross one another to give stability
Advantages
1.
No need of flanged
2.
Can be over withdrawal.
3.
Yarn package is stable
Disadvantages
Disadvantages
1.
Number of yarn turns per inch is changed in this method.
2.
Quality of yarn is less.
3.
Need of traversing mechanism
Package
used for winding:
Cotton: cone, cheese, bobbin, pirn.
Jute:
cop, spool traversing
