Borivoj Sabljak

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Snježana Brnada

Pliva (Croatia)

Stana Kovačević

Pliva (Croatia)

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Pliva (Croatia)

University of Zagreb

Korea Testing Certification

Quality Research

Tehničko Veleučilište u Zagrebu

Opća Bolnica Varaždin

University of Ljubljana

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Physiological Fundamentals of Work Study

Snježana Brnada Stana Kovačević Borivoj Sabljak

Opisana je opcenito fiziologija rada, odnosno proucavanje covjeka kao fizicko, tjelesno i fiziolosko bice. Analiziran je rad radnika u tekstilno-mehanickoj tehnologiji te njegov utjecaj kao posljedica psihofizickog napora. Pojava umora tijekom rada i njegov nastanak izravno utjece na ucinak radnika. Normirano radno mjesto, rad u smjenama, međuljudski odnosi, uvjeti rada te skromni prihodi najcesci su uzroci veceg psihofizickog napora radnika u tekstilnoj industriji. Stoga se u ovom radu analizirao ne samo rad i ucinak rada, vec i covjek kao fiziolosko bice.

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Prevention of Faults on Wool Fabrics by Application of Cold Sizing

Textiles and Light Industrial Science and Technology (2013)

Snježana Brnada Stana Kovačević Borivoj Sabljak

Mechanical faults on woolen fabrics are often the result of insufficient mechanical properties of wool warp that must be achieved to ensure smooth process of weaving. Conventional sizing is not appropriate for the preparation of wool yarn for weaving because of sensitivity of wool fibers to high temperatures. For that reason, wool warp is mostly prepared by using the waxing procedure whereby protruding fibers on the yarn surface are smoothed. In this way, its friction and elongation properties are improved. Another option is a cold sizing. It is a process, which aims to achieve the effect of conventional sized warp, but without the use of high temperatures. Cold sizing has been proved to be a good solution for wool warp sensitive to dynamic stresses during the weaving process. This paper describes advantages of the cold sizing procedure to warp waxing. The number of end breakages on the weaving machine, lengths of a faulty place in the thread marked in the inspection room of the weaving mill, and times spent for manual retouching are compared. The type of fabric, for which an increase in costs for cold sizing is justified, is also determined.

Weaving

Crimp

Waxing

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