Ebipimo by’omusingi bye bimu ku bisinga okubuusibwa amaaso ng’abaguzi balonze omusipi gwa PET (polyester strap) okukola emirimu gy’okusiba mu ngeri ey’otoma. Omusipi ogutuukana n’ebyetaago byonna eby’ebyuma —obugazi obutuufu, obuwanvu, n’amaanyi g’okumenya —gukyajja kuleeta obuzibu mu kuliisa singa obunene bwakyo obw’omusingi tebukwatagana na kigaba omutwe gw’omusipi. Core inner diameter, roll width, ne roll outside diameter byonna birina okukwatagana n’enkola ya spindle n’okusumulula ekyuma. Ekitabo kino kinnyonnyola ebipimo by’omusingi gw’omusipi gwa PET, engeri gye bikosaamu omulimu gw’omutwe gw’omusipi ogw’otoma, n’engeri y’okukakasa okukwatagana nga tonnagula.
Okulonda wakati w’omusipi gwa PET (omusipi gwa polyester) n’omusipi gw’ekyuma kye kimu ku bintu ebisinga okusalawo mu kupakinga mu makolero. PET strap ekuwa okukekkereza ku nsaasaanya okutuuka ku bitundu 50% buli ffuuti, emalawo obulabe bw’obuvune okuva ku mbiriizi ezisongovu ne snap-back, era ekuwa okukuuma okusika omuguwa okw’ekika ekya waggulu ng’emigugu gitereera nga giyita. Okusiba ebyuma kuwa obugumu obusinga ku migugu egy’amaanyi naye nga kutwala ssente ezikwekebwa omuli abakozi abangi, obulabe bw’obucaafu bw’obusagwa, n’okwambala ebyuma. Okusinziira ku biwandiiko by’amakolero, omusipi gwa PET guwa emirundi ena ebifaananyi eby’ennyiriri (linear footage) buli ttani bw’ogeraageranya n’ekyuma, ekikyusa mu musingi ensengekera y’omuwendo.
Omutindo gw’okulondoola omutindo gwa PET strap (polyester strap) gukakasa omulimu ogutakyukakyuka n’obukuumi bw’omugugu. Okusinziira ku ASTM D3950 specifications, okugezesa omutindo kulina okukakasa tensile strength, elongation, dimensional accuracy, ne heat seal strength . Ekitabo kino kinnyonnyola emitendera emikulu egy’okulondoola omutindo, enkola z’okugezesa, n’ebyo abaguzi bye balina okutunuulira nga bakakasa omutindo gw’omusipi gwa PET.
PET strap (polyester strap) efuuse ekintu ekisinga okwettanirwa okusiba mu makolero amazito, okudda mu kifo ky’ekyuma mu kyuma coil bundling, brick palleting, cotton bale packaging, n’okunyweza embaawo. Ng’erina amaanyi g’okusika okutuuka ku 600 N/mm2, okunyweza okusika okulungi, n’okukola obulungi nga tekuliimu nfuufu, omusipi gwa PET guwa amaanyi agalinga ag’ekyuma awatali buzibu bwa kyuma. Okusinziira ku kwekenneenya amakolero, omusipi gwa PET gusobola okudda mu kifo ky’ekyuma mu mirimu egisinga egy’amaanyi, okukendeeza ku nsaasaanya yonna ebitundu 30–50% ate nga gulongoosa obukuumi bw’abakozi n’okumalawo obucaafu bw’obusagwa .