Kev tsim cov txheej txheem thiab cov khoom siv rau Elastic Bands

Elastic band cov ntaub ntawv muaj cov roj hmab, polyester, nplaum, thiab elastic fibers. Cov roj hmab hluavtaws feem ntau suav nrog *cis*-1,4-polyisoprene roj hmab (IR) thiab *cis*-1,4-polybutadiene roj hmab (BR). Nyob ntawm txoj kev tsim, woven elastic bands yog tsim los ntawm interlacing paj rwb los yog tshuaj fiber ntau warp thiab weft yarns nrog ib txheej ntawm roj hmab strands (latex los yog spandex) raws li ib tug tshwj xeeb qauv; knitted elastic bands feem ntau siv stretch nylon yarn; thiab braided elastic bands (tseem hu ua spindle-braided bands) yog tsim los ntawm braiding warp yarns nyob ib ncig ntawm ib tug roj hmab core raws tus duab-yim txoj kev siv spindles.

Elastic core: Ib txwm ua los ntawm ntuj latex (rubber strands), niaj hnub versions feem ntau siv spandex (los yog Lycra) vim nws superior tsis kam mus rau aging thiab chlorine, thiab zoo elasticity.

Sab nrauv wrapping yarn: Feem ntau yog ua los ntawm polyester (siab zog, deformation kuj), nylon (abrasion resistance), paj rwb (tawv nqaij - phooj ywg), los yog polyester- paj rwb blends (ntsuas elasticity thiab kev nplij siab); cov no yog siv los xaws los yog qhwv cov ntaub ntawv tseem ceeb los tsim cov qauv webbing.