Results 11 to 20 of about 2,025 (256)

Response Features of Silk Warp Yarns during Weaving

open access: yesJournal of Natural Fibers, 2022
Raw, undegummed organzine, and degummed organzine mulberry warp silk yarns were subjected to cyclic loading on tensile testing instrument by simulating the conditions of the loom during weaving.
Subrata Das
doaj   +1 more source

Warp Tension of Tricot Machines

open access: yesJournal of the Textile Machinary Society, 1963
目的 定常状態で編成中のトリコット機のたて糸送出し量を変化させた場合の張力の過渡応答を測定して, 両者の一般的な関係を明らかにすることを目的とした. 成果 (1) トリコット機で編成中にたて糸送出し量が変化した場合の, 1コース編成中に生ずる張力の最大値の過渡現象は, 線型オペレータG (P) =E/ (1+T1・P), E : 定数, T1 : 時定数, を単位時間のたて糸巻きとり量と送出し量の差に作用させることによって推定できる.(2) 上記オペレータ中の時定数T1の値は, たて糸送出し量を増加させた場合の方が減少させた場合より小さい.またT1は機械の回転数に依存し, たて糸送出し量が増加する場合は回転数が増すと減少し, たて糸送出し量が減少する場合は回転数が増すと増加する ...
M. Terasaki, M. Maeda, T. Yamaguchi
openaire   +3 more sources

A novel neural network warp tension control combined with online identification

open access: yesXi'an Gongcheng Daxue xuebao, 2022
In order to solve the tension fluctuation of long warp yarn during loom weaving, a control method of differential separation I-RBF-PID let-off system based on online identification transfer function was proposed.
SHEN Danfeng   +4 more
doaj   +1 more source

Realization of an Automated Vertical Warp Stop Motion Positioning

open access: yesActuators, 2015
The tension in the warp yarns is a critical variable in the weaving process. If the warp tension is too high or too low the weaving process will be interrupted. A parameter that directly affects the warp tension is the vertical warp stop motion position.
Frederik Cloppenburg   +2 more
doaj   +1 more source

Tension Networked Control Strategy for Carbon Fiber Multilayer Diagonal Loom

open access: yesIEEE Access, 2020
With the aim of solving warp tension control problems in the let-off system and opening system in the carbon fiber multilayer diagonal loom, dynamic models of warp tension are established in this study based on dynamic analysis.
Wei Liu   +4 more
doaj   +1 more source

Multiple response optimization of sizing machine settings and sized yarn tensile properties using advanced method of experimental design

open access: yesJournal of Engineered Fibers and Fabrics, 2023
On a loom, the warp yarns experience exceptionally high mechanical stresses and strains, as well as significant abrasion from friction. As a result, significant yarn breakages cause loom stoppages and, hence, production and quality interruptions.
Andualem Genene Abay, Million Ayele
doaj   +1 more source

The calculation of warping spools of warp-knitting machines

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2014
The paper is devoted to the development of scientific bases of the knitting machine design, in particular, to the calculation of warping spools of warp-knitting machines.
Vitaliy V. Chaban, Boris F. Pipa
doaj   +7 more sources

IMPROVING PRODUCTION TEXTILE TAPES ON NEEDLE NARROW WEAVE MACHINES FOR SUITABLE ENDUSE. [PDF]

open access: yesمجلة بحوث التربية النوعية, 2009
Finally, the weft delivery of the RIEMCHENTRANSPORT was replaced by FOUMISSEUR. In order to find a solution of this problem is investigating the factors affecting the width fabric in the direction of warp and weft.
Sayed Takey Mohamed Abd Elmaksoud   +1 more
doaj   +1 more source

Changeover Process Assessment of Warp-Knitting Let-Off Equipped with Multispeed Electronic Let-Off System

open access: yesAUTEX Research Journal, 2020
Warp-knitted fabrics have gained increasing attention due to their excellent properties, and their production is strongly dependent on the warp-based electronic let-off system.
Ji Yong, Jiang Gaoming, Tang Mengting
doaj   +1 more source

Mechanical properties of coated fabric membranes at high temperature

open access: yesJournal of Engineered Fibers and Fabrics, 2022
A model about the strength of polyvinyl chloride coated polyester at high temperature was proposed in this paper. The model can predict the warp-direction strength, weft-direction strength, and off-axis strength at high temperatures according to the ...
Suduo Xue, Fei Yan, Guojun Sun
doaj   +1 more source

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