english: It started in Japan. Sumitomo had developed a technology essentially to impregnate a polyethylene-based fiber with organic insecticide, so you could create a bed net, a malaria bed net, that would last five years and not need to be re-dipped.
non_english: Počelo je u Japanu. Sumitomo je razvio tehnologiju da oplemeni vlakna na bazi polietilena sa organskim insekticidom, kako bi se napravila mreža za krevet, protiv malaričnih komaraca koja bi trajala pet godina i ne bi morala da se ponovo maže.