Quality of polyamide textile yarn (review)

1980 ◽  
Vol 12 (2) ◽  
pp. 77-85
Author(s):  
A. A. Aver'yanov ◽  
L. M. Arkhipova
Keyword(s):  
Textile Yarn ◽  
Polyamide Textile

scholarly journals Study on the mechanics of textile thread in woven

2021 ◽  
Vol 304 ◽  
pp. 03035
Author(s):  
Sanovar Khamrayeva ◽  
Dilfuza Kadirova ◽  
Sayidvoris Rakhimkhodjayev
Keyword(s):  
Friction Surface ◽  
Linear Density ◽  
Textile Yarn ◽  
Friction Angle ◽  
Angle Of Friction ◽  
Current State ◽  
Thread Tension ◽  
The Relationship ◽  
Textile Thread

Specialists in the weaving industry are often interested in the question of what tension of the warp and weft threads must be set on the weaving machine to produce a particular fabric. Along with this, they are interested in the question of what is the relationship between these parameters and the structure of the fabric, how much it is necessary to increase or decrease the tension of the warp and weft threads when changing the assortment of fabric. These problems arise because the correct thread tension on weaving machines increases the productivity of equipment and labor, and also improves the quality of the fabrics produced. The current state of the mechanics of a weighty deformable flexible thread on a plane and other forms of guides do not take into account the rigidity of the threads on the friction surface, since this parameter is determined by the type and type of threads, the linear density of the threads and the elastic properties of the threads. Therefore, the article analyzes the work on the mechanics of textile yarn and studies of the tension of the yarns were carried out depending on the radius of friction, angle of friction, coefficient of friction and stiffness of the yarns.

Shrinkage of polyamide textile yarn reduced by heating during twisting

1979 ◽  
Vol 10 (5) ◽  
pp. 508-509
Author(s):  
A. A. Aver'yanov ◽  
L. M. Arkhipova ◽  
T. B. Shabanova ◽  
D. V. Fil'bert
Keyword(s):  
Textile Yarn ◽  
Polyamide Textile

Effect of ripeness nonuniformity in viscose on the quality of textile yarn

1983 ◽  
Vol 14 (4) ◽  
pp. 308-311
Author(s):  
G. I. Berestyuk ◽  
L. A. Mokrousova ◽  
L. A. Popova ◽  
M. P. Nosov ◽  
Z. P. Moryakovskaya
Keyword(s):  
Textile Yarn

Tex irregularity of orientation-stretched polyamide textile yarn

1978 ◽  
Vol 10 (2) ◽  
pp. 166-169
Author(s):  
A. A. Aver'yanov ◽  
B. Yu. Meshkova ◽  
O. K. Botchenko ◽  
M. V. Yapin' ◽  
D. V. Fil'bert
Keyword(s):  
Textile Yarn ◽  
Polyamide Textile

The winding unit of the spinning machine as a source of the irregularity of polyamide textile yarn

1980 ◽  
Vol 11 (6) ◽  
pp. 506-511
Author(s):  
A. A. Aver'yanov ◽  
O. K. Botchenko ◽  
B. Yu. Meshkova ◽  
D. V. Fil'bert ◽  
V. Ya. Strel'tsev
Keyword(s):  
Textile Yarn ◽  
Polyamide Textile

Disposition of the spinneret holes as a factor in the quality of viscose rayon textile yarn

1980 ◽  
Vol 11 (6) ◽  
pp. 486-488
Author(s):  
R. V. Egorova ◽  
A. T. Serkov ◽  
B. M. Sokolovskii ◽  
G. G. Finger ◽  
A. F. Telysheva
Keyword(s):  
Viscose Rayon ◽  
Textile Yarn ◽  
Rayon Textile

Frictional properties of twisted polyamide textile yarn

1991 ◽  
Vol 23 (1) ◽  
pp. 69-70
Author(s):  
B. A. Fomenko ◽  
E. M. Sergeeva ◽  
L. M. Arkhipova ◽  
A. A. Aver'yanov
Keyword(s):  
Textile Yarn ◽  
Polyamide Textile ◽  
Frictional Properties

Immunoferritin localization of intracellular antigens in positively stained frozen sections

1978 ◽  
Vol 36 (2) ◽  
pp. 168-169
Author(s):  
K. T. Tokuyasu
Keyword(s):  
Surface Tension ◽  
Water Surface ◽  
Thin Layers ◽  
The Other ◽  
Positive Staining ◽  
Frozen Sections ◽  
The Past ◽  
Ultrathin Frozen Sections ◽  
Definition Of

During the past investigations of immunoferritin localization of intracellular antigens in ultrathin frozen sections, we found that the degree of negative staining required to delineate u1trastructural details was often too dense for the recognition of ferritin particles. The quality of positive staining of ultrathin frozen sections, on the other hand, has generally been far inferior to that attainable in conventional plastic embedded sections, particularly in the definition of membranes. As we discussed before, a main cause of this difficulty seemed to be the vulnerability of frozen sections to the damaging effects of air-water surface tension at the time of drying of the sections.Indeed, we found that the quality of positive staining is greatly improved when positively stained frozen sections are protected against the effects of surface tension by embedding them in thin layers of mechanically stable materials at the time of drying (unpublished).

Lithography below 100 nm

1983 ◽  
Vol 41 ◽  
pp. 96-99
Author(s):  
L. D. Jackel
Keyword(s):  
Spatial Distribution ◽  
Electron Beam ◽  
Electron Scattering ◽  
Electron Beam Lithography ◽  
Substrate Material ◽  
Local Electron ◽  
Electron Dose ◽  
Positive Resist ◽  
Exposure Process

Most production electron beam lithography systems can pattern minimum features a few tenths of a micron across. Linewidth in these systems is usually limited by the quality of the exposing beam and by electron scattering in the resist and substrate. By using a smaller spot along with exposure techniques that minimize scattering and its effects, laboratory e-beam lithography systems can now make features hundredths of a micron wide on standard substrate material. This talk will outline sane of these high- resolution e-beam lithography techniques.We first consider parameters of the exposure process that limit resolution in organic resists. For concreteness suppose that we have a “positive” resist in which exposing electrons break bonds in the resist molecules thus increasing the exposed resist's solubility in a developer. Ihe attainable resolution is obviously limited by the overall width of the exposing beam, but the spatial distribution of the beam intensity, the beam “profile” , also contributes to the resolution. Depending on the local electron dose, more or less resist bonds are broken resulting in slower or faster dissolution in the developer.

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