What Is Texturing?

Texturing is a process where flat continuous yarn is modified to give bulk and/or additional stretch to the filament yarn.

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7-2 TexMngYam

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Figure 7-1 False Twist Texturing: A Typical layout of a Two-Heater False-Twist

Texturing Machine

Roller

Feed Rol 4 #3

TexiudngYam 7-3

Figure 7-2 Texturing Machine

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Figure 7-3 False Twist Texturing

Diagrammatic representation of

moving yam. The sketch shows that the twist is mtricted tothe yam ente&g the false-twist sp]ndle, and

Sketch illustrating the principle of

heater to set the twist inserted below the false-twist spindle, and the untwisted yam leaving the false-twist spindle for

the insertion of false-twist in a false-twist texturing. Note the

that it leaves the twist sprndle twist-&. wind-up.

TextulngYam 7-5

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Figure 7-4 Air Jet Texturizing Diagram

Textured Yarn I -

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Figure 7-5 Stuffer Box Texturing

- Weighted Tube

Yarn From Supply Packages t

TextulngYam 7-7

Figure 7-6 Knit-De-Knit Texturing

Figure 7-7 One Form Of Edge Crimping

TexMngYom 7-9

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Figure 7-8 Gear Crimp Texturing

Guide

Cylinder

Feed Rolls Fb -4 - SnubbingPin

Air Cooling P Y

Second Crimp Gears Y I

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] GasDevice

SeparatorRoll 4 Draw Roll - DrawnYm Balloon Guide

Ring Traveler Package

7-10 TextrnlngYam

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Figure 7-9 Typical Yarn Structures

StretchYarns

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Air-Jet

Knit-De-Knit

GWY crimp

Bulk Yarns

Texturing Yarns 7-11

Figure 7- 10 Friction Texturing

7-12 TexturlngYanr,

Figure 7-1 1 Polyurethane Positorq: Setting The Height Of The Discs

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Figure 7- 12 Nip Twister

The yarn is nipped securely and twisted by Murata’s Exclusive Twiste Belts. Slippage is almost zero. In this diagram, the force applied to the yarn, V, is divided into VT and VF . VT is twist force. V 1s

of V p d VF are decided according to V and angle 8. That is, in the nip system, the twist level,

.twist tension (Tl) and untwist (T2) can be set by adjusting V and 8.

yarn feed force. V a? ues

7-14 TexturlngYarnS

Vector V Force Applied To Yarn

VT: Twist Component VF: Feed Component

8: Twister Angle

Table 7-1 Types Of False Twist Textured Yarns

Fully Set

I I I I Bulk Stretch Liveliness

Lower Medium Less

Semi Set

Stretch

Medium High More

High Very High Most

TextulngYarns 7-15