Loaʻa ka ikaika o ke kaula PP (polypropylene strap) ma o ke kaʻina hana i kapa ʻia ʻo molecular orientation. I ka wā o ka hana ʻana, hoʻopaʻa ʻia ke kaula i hoʻokuʻu ʻia ma lalo o nā kūlana i hoʻopaʻa ʻia, e hoʻohālikelike ana i nā kaulahao polymer ma ka lōʻihi o ke kaula.
Loaʻa ka PP strapping (polypropylene strapping) i nā laulā maʻamau mai 5mm a 19mm, me 9mm, 12mm, 15mm, a me 19mm ka nui o ka nui o ka waihona. ʻO ke koho ākea e hoʻoholo i ka hāʻawi ʻana i ka ukana, ka ikaika haʻihaʻi, a me ka hoʻohālikelike ʻana i nā mea hana. ʻO nā kaula liʻiliʻi (5–9mm) kūpono i nā pahu pahu māmā a me ka ʻeke e-commerce, ʻoiai nā koho ākea (15–19mm) e lawelawe i nā pallet kaumaha a me nā ukana ʻoihana. Hōʻike kēia alakaʻi i nā laula maʻamau i loaʻa no ka PP strapping rolls, pehea ka laula e pili ai i ka hana, a pehea e koho ai i ka kikoʻī kūpono no kāu noi.
Loaʻa ke kaula PP (polypropylene strap) i nā mānoanoa mai ka 0.35mm a i ka 0.80mm, me kēlā me kēia pae i kūpono i nā koi kikoʻī a me nā ʻano mea hana. ʻO nā kaula ʻoi aku ka lahilahi (0.35–0.45mm) e lawelawe i nā pahu pahu māmā a me ka ʻeke e-commerce, ʻoiai nā koho mānoanoa (0.65–0.80mm) e lawelawe i nā pallet kaumaha a me nā ukana ʻoihana. Hoʻopili pololei ka mānoanoa i ka ikaika haʻihaʻi, ka hana sila, a me ka hilinaʻi ʻana i ka mīkini. Hōʻike kēia alakaʻi i nā koho mānoanoa maʻamau i loaʻa no ke kaula PP, pehea e pili ai ka mānoanoa i ka ikaika haki, a pehea e koho ai i ka kikoʻī kūpono no kāu noi.
ʻO ke koho ʻana ma waena o nā māka strapping PP e pili ana i ka hana lōʻihi ma mua o ka nui o nā mea kūʻai. ʻO ke kaula polypropylene viscosity kiʻekiʻe—i hana ʻia mai ka resin me ka viscosity intrinsic ma waena o 0.60 a me 0.95 dl/g—e hāʻawi ana i ka lōʻihi o ke kaulahao molekala, e hopena i ka ikaika tensile kiʻekiʻe, ʻoi aku ka maikaʻi o ka creep resistance, a me ka hoʻomaikaʻi ʻana i ka hana i ka manawa. Hiki ke hoʻokō maikaʻi ʻia ke kāʻei ʻana o ka papa maʻamau no ka wā pōkole a i ʻole nā hana māmā akā hiki ke hoʻopau wikiwiki i ka haʻalulu ma lalo o ka ukana hoʻomau. Hoʻohālikelike kēia ʻatikala i nā māka ʻelua ma waena o ka molecular structure, mechanical properties, a me ka hana lōʻihi e kōkua i nā mea kūʻai aku e koho i ka kikoʻī kūpono.