Definition of warping | Objects of warping | Importance of Warping | Definition & Function of creel

Warping

The parallel winding of warp ends from many winding packages (cone or cheese) on to a common package (warp beam) is called warping. 

Types:

Direct of Hi-speed Warping

Sectional Warping

Fig: Warping Process

Objects of warping

The object of warping is to convert a predetermined number of single end packages, such as cones or cheeses into a sheet of yarn of specified length & width. The individual’s ends in the warp are uniformly spaced across its full width. The warp yarns comprise one of the systems of yarns required to produce a woven fabric & also for warp knitting. The objective at warping, as erroneously considered by many is not at all to remove yarn faults, the breaks due to these being only incidental.

Importance of warping

1.   Constructions of beam warp yarn.

2.   Constructions of a parallel yarn sheet.

3.   Modifying the faults of yarn like thick & thin places, large knots etc.

4.   Winding the predetermined length of yarn.

5.   Combination of small packages.

6.   Finding long length of warp yarn.

7.   Accelerating the next process.

Major components of Warping Machine

Warping machine has three major components:

Creel 

Head Stock

Control Device

Creel

The creel is a stand for holding the supply packages in the form of wound packages. It enables to hold the supply packages in proper position for warping and constitutes an important component of the warping machine. No individual type of creel can be suitable for all types of yarn, counts, set lengths and different applications. In other words no single type of creel can give the same beaming efficiency for different types of yarns or applications

Function of components of creel

Cone or cheese spindle for high speed warping.

Thread guide: To pass through the yarn in the reqd way.

Tensioner: To keep the yarn always in a uniform tension.

Yarn cleaner: To remove various faults of yarn like slubs, neps etc.

Suction fan or blower: To remove the dirt & dust from the yarn.

Breakage indicator: To indicate breakage in package.

Stop device: To stop the m/c when yarn will be broken.

                   Posted By-

                Amanuzzaman

         Campus Correspondent,

Shyamoli Textile Engineering College.