High Quality Bare Spandex Filament Yarn for Cotton Knit Fabric

Knitted fabric

INVIYA^® is a high quality knitting spandex yarn that imparts necessary stretch and comfort. To impart stretch to circular knit fabrics, INVIYA^® bare spandex filament yarn is introduced during circular knitting through spandex feeding mechanism along with hard yarn at pre-determined level of draft.
Circular Knit fabrics with INVIYA^® finds wide usage in clothing and performance wear with perfect fit and shape. To impart stretch to circular knit fabrics, bare spandex is extremely important.

INVIYA® high quality spandex yarn manufacturers in India. Spandex bare yarn has high breaking points allowing for super stretches and still recovering the original shape. Jersey is the most popular type of cotton knit fabric.

Suitability
Properties
Application parameters
Manual

INVIYA^® I-400 is quite adaptable to different makes of Circular Knitting machine available in the market with various kinds of attachments (tensioning device) and feeders

INVIYA^® is elongated before feeding to plaiting zone at the needles as per required draft. Required draft can be calculated by simply dividing the speed of hard yarn (cotton) by unwinding speed of INVIYA^® and can be adjusted accordingly.
INVIYA^® tension is an effect of draft. The draft/ tension in INVIYA^® yarn will depend upon the denier used and its content in the fabric. With a fix combination of hard yarn, count and INVIYA^® denier the content can be varied in a range of 20% (e.g. 4 – 5% content).
INVIYA^® can run at an unwinding speed upto 90 m/min without any hindrances and compromise on working speed of knitting machine.
INVIYA^® can be stretched up to 6 times of its original length however, the stretch percentage in the knitted fabric can be varied over a wide range both in length and width wise. This can be controlled by fabric engineering. Load and unload power of INVIYA^® is balanced which is appropriate for required stretch and recovery property of finished fabric. In addition to stretch property of INVIYA^®, it has higher and appropriate modulus to maintain the required pressure of fabric on body while used over a long period.
INVIYA^® has balanced property in terms of resistance to heat.
With INVIYA^®, the stretch and recovery power of the fabric is well retained even after repeated washes/ processes.

INVIYA^® Denier	20D	30D	40D	70D	70D
No of Filaments	1	2	3	4	5
Luster	Semi dull	Semi dull	Semi dull	Semi dull	Semi dull
Denier	20 ± 1.2	30 ± 1.5	40 ± 1.6	70 ± 2.0	70 ± 2.0
Tenacity (g/D)	≥ 1.10	≥ 1.00	≥ 1.00	≥ 1.00	≥ 1.00
Elongation (%)	≥ 475	≥480	≥ 480	≥ 500	≥ 500
Modulus 300%	≥ 5.0	≥ 7.0	≥ 9.5	≥ 14.0	≥ 14.0

The below application parameters are broad guidelines for Circular Knitting with INVIYA^® which may vary with machine parameters, running speed, fibre content, etc.

INVIYA^® Denier	Hard Yarn Count	Knitting M/C Gauge		Draft		Spandex Content		Finish GSM
INVIYA^® Denier	Hard Yarn Count	Min	Max	Min	Max	Min	Max	Min	Max
20	30’s	24	28	2.5	3.2	3.40%	4.30%	175	190
	32’s	24	28	2.7	3.2	3.60%	4.30%	165	180
	34’s	24	28	2.7	3.2	3.80%	4.50%	155	175
	36’s	24	28	2.7	3.2	4.10%	4.80%	145	165
	40’s	24	32	2.7	3.2	4.50%	5.30%	135	160
	50’s	28	32	2.8	3.2	5.60%	6.30%	125	150
	60’s	28	32	2.8	3.2	6.60%	7.50%	120	140
40	30’s	24	28	2.7	3.2	6.60%	7.70%	220	240
	32’s	24	28	2.7	3.2	7.00%	8.20%	210	240
	34’s	24	28	2.7	3.2	7.40%	8.70%	210	240
	36’s	24	28	2.7	3.2	7.80%	9.10%	205	235
	40’s	24	32	2.7	3.2	4.50%	5.30%	200	230
70	30’s	24	24	2.7	3.5	10.10%	12.80%	270	300

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Knitted fabric