SPANDEX S/J 240 GSM

  SPANDEX SINGLE JERSEY 240 GSM

Dear viewers you all are known that in all my previous sessions I discussed various types of fabrics and various gsm ranges. Today I am going to discuss a special spandex single jersey fabric. 

Required gsm: 240

Yarn count: 26/1combed cotton + 40D spandex full feeder

Required dia: 60 inch 

Machine dia: 30x20

Stitch length: 3.30

Grey dia: 62 inch 

Grey gsm: 270

As this is a full-feeder lycra fabric so we need to do a heat set. 

The heat set parameter is given below: 

Temperature:200°C

Width set: 62 inch 

Speed: 17 meters/minute

Overfeed%: 70%

Before heat set dia: 55 inch

Before heat set gsm: 285

After heat set width: 64 inch 

After heat set gsm: 240

After that, we dye the fabric. Then need to dry the fabric in stenter machine again. 

Stenter parameter:

Temperature: 160°C

Speed: 24 meters/minute

Overfeed: 70%

Width set: 61 inch

Blower: 70%

Padder pressure: 35/15

After stenter dia: 61 inch 

After stenter gsm: 232

Use of softener: Yes 

After that, we need to do compacting the fabric.

Compacting machine: Ferraro lafer (Open machine)

Speed: 20 meters/minute

Width set: 60 inch 

Temperature: 110°C

Overfeed: 80%

Steam pressure: full

Compacting%: 5%

After compacting dia: 60 inch 

After compacting gsm: 242

After the shrinkage test, we got,

Lengthwise%: -3

Widthwise%: -2%

Spirality%: 1%