Definition of Winding | Objects of winding | Types of Winding | Requirements of winding | Describe about winding procedure

Winding

Transferring of yarn from one package to another is called winding. Winding provides an opportunity of cleaning and rewinding the package to a suitable package size, shape and build maintaining a sufficient tension to give the package a required density and stability.

Fig: Winding Process.

Objects of winding

Ä  To make a soft package for Yarn Dyeing, so that dyes can penetrate easily in the yarn.

Ä  To produce a Hard Package for warping process or weft for Yarn Dyeing fabric production.

Ä  To make a suitable package for specific end use i.e. warping beam.

Types of Winding

 SOFT WINDING:

Ä  Grey yarn is wound on a special Perforated Plastic or suitable Steel Spring Bobbin.

Ä  The packages are made soften and bulkier to make it suitable for dye liquor penetration in yarn dyeing.

 HARD WINDING:

Ä  Yarn dyed package are converted to cone/cheese by rewinding on paper or plastic bobbin.

Ä  Yarn package are comparatively hard.

Requirements of Winding

Ä  The fault level in the yarn must be reduced to an acceptable level.

Ä  The yarn must not be damaged in the winding process, so the tension must be kept proper.

Ä  The yarn must be wound in such a way so as to permit unwinding in the following process with minimum difficulty and at the required speed.

Ä  The package size, shape and build must be the most technologically suitable for particular end use.

Ä  The winding operation must be geared to give the best possible economic performed throughout the whole process of the fabric manufacturing.

Winding Procedure

Ø The batch of soft spools after being dyed & dried is carried back to the winding section with a different identification paper each showing customer name, order no, yarn count, lot no, dyed shade, number of packages & weight.

Ø Quality control officers check the dyed yarn for correct shade, any variation in shade within the package or within the batch.

Ø Winding section record all the information from the form upon their register on order on basis.

Ø Supervising officers check the form for specific order no & find out the warping the requirement for yarn from the already worked out warp pattern scheme, where they require pieces of cone per each color is shown. The program is made to make desired pieces of cones per each color in the hard winding m/c either by-

One to One rewinding or

One to Two (or more as require) rewinding.

Ø After a batch of warp yarn of a specific order number is being ready it is placed in the carton as per color and a Batch Card is placed over the carton showing customer name, order no, yarn count, lot no, dyed shade, number of packages & weight. Thus it is ready to deliver in warping m/c.

Ø After warping card is made the rest of yarn of the specific order is rewinded color wise for use as weft which is also packed & leveled as before. Moreover, the left over yarn that is found after warping is completed of a specific order is sent back to the winding area for rewinding into a bigger package & packed for use in the weft as before.

                     Posted By-

                 Amanuzzaman
          Campus Correspondent,
Shyamoli Textile Engineering College.