How to control GSM , Shrinkage, Diameter, Twist in Grey fabric.

vGSM

GSM means grams per square meter of a knit, woven or nonwoven fabric. The weight of one square meter fabric is called the GSM of fabric. It is essential to made the required GSM fabric according to the buyers requirement.

#How to  Control  GSM  in Grey  fabric :

Ø  Variable Dia Quality Pulley:  GSM of a grey fabric should be controlled by Variable dia quality pulley (VDQP) . If Variable dia quality pulley pushed positive side, then the dia and stitch length is increased. As a result, GSM is decreased. If variable dia quality pulley pushed at negative side, then the dia and stitch length of grey fabric decreased. As a result, GSM is increased.

Ø  Count of yarn: GSM of grey fabric depends on count of yarn. If the count of yarn is high, then the GSM of grey fabric is low. If the count of yarn is low, then the GSM of grey fabric is high.

Ø  Tension of take up roller:  If the tension is increased in take up roller, then the GSM of grey fabric will be low. If the tension of take up roller is decreased, then the GSM of grey fabric will be high.

Ø  Yarn type:  GSM of grey fabric depends of yarn type.  Different types of yarn produce different GSM fabric. For example, Polyester  yarn produce lower  GSM fabric & cotton yarn produce high GSM fabric.

Ø M/c gauge:  If m/c  gauge is higher, then the GSM of grey fabric should be high. If the m/c gauge is lower, then GSM of grey fabric should be low.

Ø   Stitch length: High stitch length fabric has low GSM & Low stitch length fabric has high GSM.

Shrinkage:

Shrinkage is defined as a change in the dimensions of a fabric or garment. The change may be negative (losing size from original measurements) or positive (growth in measurement) in the length, width or thickness of the fabric or garment. While the thickness of a fabric can change over the course of the life of a garment, it does not usually cause a problem with the fit of a garment.

# How to control shrinkage of grey fabric:

Ø  Yarn tension: If the yarn tension of grey take up roller is high, then the shrinkage of grey fabric is low.

Ø  Relaxation time: If the relaxation time of grey fabric is not maintained , then the shrinkage of grey fabric is increased.

Ø  Plated from:  Store the grey fabric in the plated form & not in the roll form. Thus the shrinkage of grey fabric is controlled.

Ø  Quality of yarn: shrinkage of grey fabric depends of  yarn quality.  Shrinkage increases with the increases of Crimp% of yarn .

Ø  Twist factor:  Twist factor increases so that shrinkage will be increases.

Ø  Stitch length:  Stitch length increases so that shrinkage will be increases.Fabric 

Diameter:

Fabric diameter is the width of the fabric. Different diameter fabric is produced by different diameter m/c. It’s also depends upon the number of the feeder of m/c.

# How to control Diameter of grey fabric:

Ø  M/c dia: Diameter of grey fabric depends upto m/c diameter. If the diameter of m/c is high, then the  diameter of grey fabric will be high. If the diameter of m/c is low, then the diameter of grey fabric will be low.

Ø  No of needle:  If the no of needle of a m/c is high, then the diameter of the fabric will be high. If the no of needle of a m/c is low, then the diameter of the fabric will be low.

Ø  No of feeder:  Fabric diameter increases with the increases of feeder.

Twist:

Twist is defined as the spiral deposition of the components of a twist is the measure of the spiral turns given to a yarn in order to hold the constituent fibres or threads together. Twist may be defined as the rotation about the yarn axis of any line drawn on the yarn which was originally, before twisting parallel to the yarn axis.

# How to control Twist of grey fabric:

Ø  No of feeder: If the no of feeder of a m/c is high, then the twist of a fabric will be high. If the no of feeder is low, then the twist of a grey fabric will be low.

Ø  Yarn twist:  Twist of grey fabric will be high , if the yarn twist is high. Twist of grey fabric will be low, if the yarn twist is low.