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  • In the paper the influence of surface finish of needles (titanium nitride finish and chrome finish), air cooling and the placement of needles in the needle bar during 24 hour period of sewing of seat covers for car seats made of leather is presented. Damaged sewing thread reduces high quality appearance of the seat cover at the site of sewing and also the durability of the joint. Simultaneously, the sewing needles must be replaced more frequently which leads to an increase in costs and loss of productivity. The test was carried out on two-needles sewing machine using the lockstitch. The degree of the wear of needle surface was measured after 8, 16 and 24 hours of work. The one was determined subjectively by analyzing images from a scanning electron microscope. To analyze the extent of surface wear the grid was used. The results show that the damage surface of the left needle is considerably larger than at the right, which may be caused by the different direction of rotation of the loopers. Neither the cooling effect nor the influence of surface finish has the influence on the changes of size of surface wear.
  • In the paper the influence of surface finish of needles (titanium nitride finish and chrome finish), air cooling and the placement of needles in the needle bar during 24 hour period of sewing of seat covers for car seats made of leather is presented. Damaged sewing thread reduces high quality appearance of the seat cover at the site of sewing and also the durability of the joint. Simultaneously, the sewing needles must be replaced more frequently which leads to an increase in costs and loss of productivity. The test was carried out on two-needles sewing machine using the lockstitch. The degree of the wear of needle surface was measured after 8, 16 and 24 hours of work. The one was determined subjectively by analyzing images from a scanning electron microscope. To analyze the extent of surface wear the grid was used. The results show that the damage surface of the left needle is considerably larger than at the right, which may be caused by the different direction of rotation of the loopers. Neither the cooling effect nor the influence of surface finish has the influence on the changes of size of surface wear. (en)
Title
  • The Influence of Time of Work on the Wear of Needle Surface
  • The Influence of Time of Work on the Wear of Needle Surface (en)
skos:prefLabel
  • The Influence of Time of Work on the Wear of Needle Surface
  • The Influence of Time of Work on the Wear of Needle Surface (en)
skos:notation
  • RIV/46747885:24410/14:#0003878!RIV15-MSM-24410___
http://linked.open...avai/riv/aktivita
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  • I
http://linked.open...vai/riv/dodaniDat
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  • 21706
http://linked.open...ai/riv/idVysledku
  • RIV/46747885:24410/14:#0003878
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http://linked.open.../riv/klicovaSlova
  • Car seat; cooling; lockstitch; sewing needle; surface finish (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [0EBDD11B6ED2]
http://linked.open...v/mistoKonaniAkce
  • Ružomberok, Slovenská republika
http://linked.open...i/riv/mistoVydani
  • Ružomberok, Slovenská republika
http://linked.open...i/riv/nazevZdroje
  • 4th International Conference on Textile and Material Science TEXCO 2014
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Bajzík, Vladimír
  • Havelka, Antonín
  • Bečicová, Zuzana
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
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  • DIZAJN n.o.
https://schema.org/isbn
  • 978-80-8075-660-4
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  • 24410
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