Flow Chart of melt spinneret of Spinning

Spinning: The conversion of polymer in fiber is call spinning.

Type of Spinning:

1.      Melt Spinning.

2.      Dye Spinning

3.      Wet spinning.

Flow Chart of melt spinneret:

 Advantage:

1.          High production (SPG. Speed 1000-2000 m/min)

2.          Hazard , Non Toxic

3.          No environment pollution.

4.          No solvent required.

5.          Heat of spg high.

Disadvantage:

1.      Required more proper maintenance of the M/C. (M/C –Machine)

2.      For flat yarn separate stretching operation is required.

3.      Heat of input high.

Flow Chart of MMF Production Man -mande fibers

Flow Chart of MMF Production:

Manufacture of the fiber forming polyer

Spinning extrusion through spinneret

Stretching/Drawing (Improving strength & crystalline)

Texturing/Crimping (Developing natural fiber properties)

Interminglong (Applied instead twisting)

Heat Setting (Made dimensionally stable)

Flow Chart Main Made Fiber

Flow Chart Main Made Fiber

Properties required for fiber forming Polymer:

a)     Molecular weight should be high.

b)     TG should be near to room temp. (TG: Glass transition temperature)

c)     TM 200-300 is not suitable. (TM: Crystalline Melting Point)

d)     Should be hydrophilic.

e)     Resistance to different chemicals.

Flow chart of coloration

Flow chart of coloration:

Coloration

Naps warp and weft end breakage, hole, spot etc remove.

Singing

A process of burning protruding fibers from a textile structure.

Desizing

Rem oval of sizing materials thus increasing the absorbency of fabric

Scouring

Removal of impurities by boiling with alkali

Bleaching

Destroy the natural color

Dyeing                                                            Mercerizing

                Process of coloring the pretreated fabric         Optional process done to improve the strength and

Brightness of fabric

Printing

Localized dyeing process

Finishing

Ready for shipment