COUNT | DEFINITION OF COUNT | DIFFERENCE BETWEEN COUNT AND HANK | ENGLISH COUNT | FRENCH COUNT | METRIC COUNT | SPINNING CALCULATION.

COUNT AND HANK

The term “hank and count” have same meaning and both are indicate the fineness or coarseness of cotton. Hank term is generally used for the material in the preparatory process like as blowroom lap, card sliver, drawframe sliver, lapformer lap, simplex roving etc. Count term is used for yarn like as carded yarn, combed yarn, double yarn, open end yarn etc.

DEFINITION OF COUNT

The count represents the number of hanks of 840 yard of yarn in 1 pound weight and the hank represents the number of hanks of 840 yard of sliver or roving in 1 pound weight.

Count = The number of hanks of 840 yards/Yarn weight (in pound)

For example,

1) Sliver length = 168 yards,

    168 yards sliver weight = 1 lbs. Then,

    Hank of sliver = 0.2

 

2) Yarn length = 16800 yards,

    16800 yards yarn weight = 1 lbs. Then,

    Count of yarn = 20

TYPES OF YARN COUNT

1. Indirect system- English, Metric, Worsted.
2. Direct system- Tex, Denier, Lbs/Spindle.

INDIRECT COUNT

The count of yarn expresses the number of length units in one weight unit. Thus higher the count, finer the yarn. The system is generally used for cotton, worsted, linen (wet spun) etc.

In indirect system of measuring count is used for the measurement of length per unit weight of yarn where weight is considered to be constant.
When count increases, fineness increases. (count↑ fineness↑) 

1. English Count (Ne)
2. Metric Hank ( Nm )
3. French Hank ( Nf )

ENGLISH COUNT

English count is defined as ' the number of hanks of 840 yards in one pound weight '.

English Count = Number of hanks of 840 yard / Weight in pounds

METRIC HANK

Metric hank is defined as ' the number of hanks of 1000 metres in one kilogram weight '.

Metric Hank = Number of hanks of 1000 metres / Weight in kilograms

FRENCH HANK

French hank is defined as ' the number of hank of 1000 metres in half kilogram weight '.

French Hank = Number of hanks of 1000 metres / Weight in kgs x 2

DIRECT COUNT

The count of yarn expresses the no. of weight units in one length unit. Thus higher the count, coarser the yarn. The system is generally used for synthetic fibre, jute, silk etc.

In direct system the count is used for the measurement of weight per unit length of yarn where length is considered as constant. Here whenever count increases, fineness decreases. (count↑ fineness↓) 

1. Tex
2. Denier

TEX

Tex is defined as ' the weight in grams of 1000 meter.'

Tex = Weight in grams/ 1000 meter

DENIER

Denier is defined as ' the weight in grams of 9000 meter.'

Denier = Weight in grams/ 9000 meter