Welcome

Name & ID

Hasan al NomanID: 131-23-3461Dept. of Textile EngineeringDaffodil int. University

Topic

USTER AFIS-PRO

modules Nep Classification

Fiber neps and seed coat neps Count and size distribution

Length and Maturity Length by weight and by number Short fiber content Maturity ratio

Trash Dust Trash Total foreign matter

Nep Module •The nep module individualizes

between neps and seed coat neps

•Each event (fiber, nep, SCN, ) has its own distinct electrical waveform

•Each samples waveform is compared to a standard waveform to determine which classification it most resembles

fig: Seed coat nep

fig: fiber nep

Fiber Individualizer

It can run up to 30 samples at a time

Fiber Individualizer

Optical sensors/detectors

Length measurement Single fiber measurement

Measured with an opto-electronic sensor

Fiber creates signal/impulse

converted to an electrical signal

analyzed and evaluated by computer

Trash & dust measurement

Separate sensor

Same measurement principle as for the length &nep measurement

Short Fiber Content

initially, the fibers have more or less the same length length is reduced with any mechanical treatment (

harvesting, ginning, opening, cleaning)

mainly reduced at combing

Maturity Module

Maturity ratio Fineness Immature Fiber Content Summary table and histograms

Fiber Maturity Measurement

AFIS measures the fiber shape Each fiber is measured from two

different angles by the optical sensor

Depending on the shape, cotton fibers are divided into: Fully mature -typical convolutions

of a mature fiber Immature -less obvious

convolutions, more flat Dead -no convolutions,

completely flat, “ribbon like”

THANK YOU