Characterization of fancy yarn
US7626189B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2006 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Nov 15, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/8915
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, slub distance, mass increase (ΔM) of a slub, slub diameter increase, slub diameter, slub length (LE) and/or slub total mass. The evaluation includes a smoothing or idealization of the scanning values, e.g. an idealization of the webs (91, 91′) as horizontal stretches and of the slubs (92, 92′) as trapeziums. the idealized course of the curve may be subtracted from the original course of the curve in order to obtain information on the slubs on the one hand, and on the virtual base yarn on the other hand. The occurring data quantity may be reduced by specifying parameters of the idealized course of the curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.