What is Uster Classimat?

HISTORY OF USTER® CLASSIMAT: The classification of yarn defects according to their size and length into 23 standard classes is used extensively to certify yarn quality, to help control spinning processes and to optimize yarn clearing at the winding stage.

What is Uster test?

Uster testing of yarn to measure the irregularity before knitting and weaving may reduce the faulty fabric production, faulty dyeing which may minimize the production hassle in different stages as well as customer rejection of end product.

What is Classimat yarn faults?

Permanently present variation of the cross section which is called “ unevenness” or “irregularity” Occasionally occurring thin or thick places which are called “imperfections” and. Seldom occurring thick or thin places that are called “yarn faults”

What is yarn Classimat?

USTER®CLASSIMAT 5. The yarn classification system. The classification of yarn defects and foreign matter is used to certify yarn quality and to optimize yarn clearing. Spinning to winding. Short staple yarn.

What is CV in yarn?

The coefficient of mass variation CV % is the ratio of standard deviation of mass variation divided by average mass variation. The higher the CV value is the more irregular the yarn (Figure 3).

What is IPI in textile?

The imperfection index (IPI) is the sum of yarn thin places/ km (-50%), thick places/km (+50%) and neps/km (+200%) per kilometer of tested yarn for ring spun yarn [2, 59] .

What is Uster Tester 6?

Uster Tester 6 redefines quality testing in spinning mills. It helps spinners achieve better productivity and profitability. Uster Tester is the heart of the laboratory in mills around the world and is acknowledged as the global standard for yarn testing. It provides the key to Uster’s unique ‘Think Quality’ approach.

What is Uster Quantum?

Uster Quantum 4.0 combines capacitive and optical yarn clearing. This all-in-one solution offers full flexibility for various yarns and changing conditions.

What is CSP in yarn?

C.S.P is the product of English count and strength of yarn in pound. i.e. C.S.P = Strength of yarn in pound x Count in English system. Again, English count is the no. of hanks in 840 yards length per 1 pound weight of yarn.

What is CV calculation?

The formula for the coefficient of variation is: Coefficient of Variation = (Standard Deviation / Mean) * 100. In symbols: CV = (SD/x̄) * 100. Multiplying the coefficient by 100 is an optional step to get a percentage, as opposed to a decimal.

How do you calculate CSP?

Theory: C.S.P is the product of English count and strength of yarn in pound. i.e. C.S.P = Strength of yarn in pound x Count in English system. Again, English count is the no.