Filters
New possibility of evaluation of yarn variance-length curve
The paper describes the possibility of use of evaluation ways of the variance-length curve of yarn (LVC), which makes possible to analyse of the influence of the technology and raw material on the course of the variance...
JJ - Ostatní materiály
- 2004 •
- D
Rok uplatnění
D - Stať ve sborníku
Transformation of roving mass irregularity into yarn mass irregularity
. For this study the variance-length curves of worsted rovings and consequently yarns are used.The fictive variance-length curves of yarn are constructed and then compared with real variance
JJ - Ostatní materiály
- 2005 •
- D
Rok uplatnění
D - Stať ve sborníku
Calculation of limit variance-length curve with allowances for yarn structure
This paper is focused on the equations for calculation of the limit variance length curve and its modification for cotton rotor yarns with allowance for its structure.It is respected the ?shortening? of the fibre length...
JJ - Ostatní materiály
- 2004 •
- D
Rok uplatnění
D - Stať ve sborníku
Dependence of the mass irregularity index of yarn on the section length
technological processes on yarn mass irregularity pursuant to comparison of ideal length –variance curve with real length-variance curve courses by mass irregularity index in dependance on ...
JJ - Ostatní materiály
- 2003 •
- D
Rok uplatnění
D - Stať ve sborníku
The calculation of the machine irregularity by using the variance-length curve of worsted yarn
The paper deals with the possibility of approximate calculation of the ring spinning machine irregularity pursuant to data indication from the variance-length curve of worsted yarn....
JJ - Ostatní materiály
- 2002 •
- D
Rok uplatnění
D - Stať ve sborníku
New knowledge about relation between yarn mass iregularity and surface unevenness
In this paper there is presented connection between a DR function, a variance-length curve, a spectrogram of yarn and unevenness of simulated appearance of flat textile. This unevenness is expressed by area variation cu...
JJ - Ostatní materiály
- 2008 •
- D
Rok uplatnění
D - Stať ve sborníku
Formulas modification for calculation of limit variation-length curves for rotor yarns
This paper is focused on the rearrangement of the formulas for calculation of the limit variance-length function of rotor yarn. Coefficient of fibres contraction variancelength curve of rotor yarn more corresponded to the b...
JJ - Ostatní materiály
- 2004 •
- D
Rok uplatnění
D - Stať ve sborníku
Non-periodical mass irregularity of roving into variance-length curve of yarn
This paper deals with a change of non-periodical mass irregularity of cotton combed roving into mass irregularity of yarn due to draft on the ring spinning machine. The variance length curves of roving as well as yarns are ...
JJ - Ostatní materiály
- 2005 •
- D
Rok uplatnění
D - Stať ve sborníku
The application of the variance-length curve in the rotor-spinninghall
The aim of this contribution is refer to differences in course of variance- lenght curves on the basis of differences of structure of the draft or rotor spinning machine compared with ring spinning machine....
JJ - Ostatní materiály
- 2000 •
- D
Rok uplatnění
D - Stať ve sborníku
Impact of mass irregularity of longitudinal fibrous semi-product on mass irregularity of yarn
projects itself into mass irregularity of yarn.For this study variance ?length curves established: the mass variability ofsemi-product(expressed by the variance-length curve this irregularity sho...
JJ - Ostatní materiály
- 2005 •
- A
Rok uplatnění
A - Audiovizuální tvorba
- 1 - 10 out of 35 226