Air covered yarn

Air covered yarn

Air covered yarn is manufactured by creating a physical intermingle of INVIYA^® yarn with other synthetic filament like Polyester or Nylon by the help of compressed air applied through a nozzle.

INVIYA^® is applied during a draw texturizing process of Polyester or Nylon to avoid the extra process of spandex application.

Core spun yarn is characterized by having a central core wrapped with staple fibres. These are produced in a single operation by simultaneously feeding a core filament and staple fibres through the delivery rollers of a spinning frame.

Applications of Core-Spun yarn
– Core spun yarn are inherently fire-resistant fibres.
– To make fire barriers for mattresses and furniture.

Suitability
Properties
Application parameters
Manual

INVIYA^® I-400 is suitable to apply during draw texturizing process at various drafts as per the required stretch in the covered spandex yarn. It can be applied on both the type of attachments like with auto-spool changer and manual-spool changer of spandex spools without affecting the performance.

INVIYA^® can be applied on a wide range of draft during draw texturizing process depending on the required content. A minimum content of 5% is advisable for imparting optimum recovery to the fabric.
Uniform run-ability of Spools maintains the performance and properties of INVIYA^® between start, middle and bottom of spool.
INVIYA^® can run on high speed texturizing machine keeping the efficiency high.
Load and unload power of INVIYA^® is balanced which is appropriate for required stretch and recovery property of finished fabric.
INVIYA^® retains its properties during heat setting in secondary heater at 180^o C however; its stretch power may get affected with temperature going beyond 180^o C.
Since INVIYA^® goes through one heat treatment process during texturizing, a complete heat setting process of fabric is generally not required. However, if the fabric width is not stable, it can be heat-set at 170^o C to 180^o C for a dwell time of maximum 30 seconds

INVIYA^® Denier	40D	70D	70D
No of Filaments	3	4	5
Luster	Semi dull	Semi dull	Semi dull
Denier	40 ± 1.6	70 ± 2.0	70 ± 2.0
Tenacity (g/D)	≥ 1.00	≥ 1.00	≥ 1.00
Elongation (%)	≥ 480	≥ 500	≥ 500
Modulus 300%	≥ 9.5	≥ 14.0	≥ 14.0

The below application parameters are broad guidelines for Air Covering with INVIYA^® during texturizing process which may vary with machine parameters, running speed, fibre content, etc.

Denier	Ideal Draft	Min Draft	Max Draft	Suitable for Count (Denier)
30	3.0	2.5	3.2	75, 100
40	3.2	2.7	3.5	75,100,150,220,360
70	3.3	2.9	3.6	150, 225, 360, 480
105	3.5	3.2	3.8	220, 360, 600
140	3.6	3.2	3.8	360, 480, 600

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