What is Classimat?

What is Classimat?

Uster Classimat 5 is the tool of choice for those who want to understand the nature and sources of these contaminants and to develop strategies to meet this challenge. Especially important are its powerful foreign matter tools for assessing colored foreign fibers, vegetable matter and polypropylene content!

What are objectionable faults?

These “imperfections” are determined according to a frequency figure or number per 1000 m or yards. Objectionable yarn faults. If one now considers faults larger than +100% based on the mean yarn cross-section, one moves into the range of ‘yarn faults’ and correspondingly a further reduction in the frequency.

What are yarn faults?

From all the above yarn faults, some important yarn faults have discussed in the following:

• Slubs: Slubs are fish-shaped thick places from 1-4cm long and about 5-8 times longer than the average yarn diameter at the thickest portion.
• Cracker:
• Spinners Doubles:
• Bad Piecing and Double Gaiting:
• Slough Off:
• Bottoms:

What is periodic fault?

Periodic yarn faults are thick and thin places, which always occur with the same distance from each other. Such faults are caused in the spinning process, when yarn guiding elements are defective.

What is yarn Classimat fault?

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 the use of yarn Classimat?

The USTER CLASSIMAT QUANTUM can be used not only as a tool in order to examine the yarns to be purchased for remaining disturbing thick places, thin places and foreign fibres but also as a sophisticated classifying system which can help the user to determine and set his own yarn quality standards.

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 the meaning of IPI in yarn?

imperfection index
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 spectrogram in spinning?

Spectrogram is a QC tool being used in textile mills to locate the source of fault in a yarn, filament, rove, sliver or any such continuous strand, which are produced by using rotating rollers. It highlights the defects which occur in a regular frequency.

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.

How AFIS is useful in spinning?

The USTER AFIS, a single fiber measuring system as a process control tool. This instrument is able to measure fiber samples from the bale, from the opening/cleaning line, from slivers and rovings. This paper contributes to the options of a spinning mill when using the USTER AFIS PRO in the textile laboratory.

What is Uster in textile?

Uster products are used in the spinning mill for measuring and analyzing the quality of the raw materials (i.e., fibers of different materials), intermediate products (i.e., sliver, roving) and final product (i.e., yarn) along their entire manufacturing process.

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