What is Uster Classimat?

In 1968, Uster Technologies launched an electronic system by the name of USTER® CLASSIMAT, which was a revolution in yarn clearing at that time. For this purpose, the yarn was classified into four length and in four thick place classes. This analyzing system was not only used by spinners.

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 are Classimat faults?

Classimat faults are the one of the important yarn characteristics which affects the quality of the yarn, efficiency of the further process and quality of the fabrics.

What is yarn 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 CV% of count?

The variation of the yarn count (CV count) is the variation from one bobbin to the other. If this variation is more than 2% the difference in the fabric is visible with bare eyes. 2.

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 Uster in textile?

Uster Technologies, in its industry often called USTER, is a Swiss manufacturer of analytical instruments and on-line monitoring systems for the textile industry, based in Uster, Switzerland. It emerged as a management buy-out form of the Zellweger Luwa Group in 2003.

What is Traverse ratio?

Traverse ratio (also known as winding ratio/crossing ratio) is an important parameter associated with cross wound packages that is defined as number of coils laid on the package in a double traverse. Such ribbon forming number shall be termed as “nominal traverse ratio”.

How do you reduce thin spots in yarn?

Ring Frames: are a few points to be looked into in ring frames for the control of long thin places. Optimum back-zone settings with a reduced break drafts helps to produce yarns with less number of thick/thin places and slubs.

What are the yarn defects?

Different defects in Yarn Quality

Neps Formation. Neps are an entanglement of fibers in a small ball form.
Thick and Thin Places. These are the irregularities in the diameter of the yarn.
Yarn Hairiness.
Yarn Count Variation.
Snarls.
Foreign Materials.
Yarn Stains.
Mixed Yarn.

What is CV% in yarn?

The variation of the yarn count (CV count) is the variation from one bobbin to the other. If this variation is more than 2% the difference in the fabric is visible with bare eyes. 2. C.V% A statistical measure of the variation of the individual readings (Coefficient of observed variation).

What is CV in yarn?

The variation of the yarn count (CV count) is the variation from one bobbin to the other. In general the lower the C.V.% the better is the measured value of the yarn.

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What is Uster Classimat?