Me ka hoʻomohala ʻana o ka mechanical automation, pono nā pulupulu i hoʻohana ʻia i kēlā me kēia lā a me nā wahi ʻoihana i kekahi manawa pono e hoʻokō i nā wahi hana wela kiʻekiʻe.

I loko o kahi kaiapuni kiʻekiʻe, ʻaʻole maikaʻi ia i nā filament plastic he nui.ʻO nā filament pulupulu PP maʻamau a me PET, ʻoi aku ma mua o 100 degere Celsius, ke ʻano e hoʻoheheʻe ʻia a curl a hoʻemi nui ʻia ko lākou ola lawelawe.ʻAʻole pono ka nui o nā pulupulu ʻoihana e pale i ka abrasion, akā pono pū kekahi e hoʻokō i nā mahana kiʻekiʻe.No laila, pono e hana ʻia nā pulupulu ʻoihana me ka uea nylon palaki kiʻekiʻe.

ʻO ka uea bristle PA66 he wahi heheʻe o 230-250°C a me ka wela wela o 150-180°C.Loaʻa iā ia ke kūpaʻa maikaʻi a me ka paʻakikī i nā kaiapuni kiʻekiʻe, ka ikaika mechanical kiʻekiʻe, ke kūpaʻa kiʻekiʻe o ka mahana, ka paʻakikī paʻakikī, ke kūpaʻa abrasion, ke kūpaʻa alkali a me ke kūpaʻa waikawa.Ua lawa no ka hoʻokō ʻana i nā ʻano hoʻohana kaiapuni paʻakikī, kūpono ke kumu kūʻai, hoʻohana nui ʻia i ke poʻo poʻo, ka ʻauʻau ʻauʻau, ka pulupulu mahu, nā huahana palaki ʻoihana.

Ma waho aʻe o ke koho ʻana i ka mea kūpono, he mea nui hoʻi ka maikaʻi o ka mea maka, inā ʻaʻole maikaʻi ka maikaʻi o ka mea maka, e hoʻopilikia pū ia i ka pale ʻana a me ke kūpaʻa wela o ka uea nylon.