He aha ka ʻokoʻa ma waena o ka ʻili PU a me ka ʻili PVC?

He aha ka ʻokoʻa ma waena o ka ʻili PU a me ka ʻili PVC?
Me ka hoʻomohala ʻana o ka ʻepekema a me ka ʻenehana, ua hoʻomaikaʻi maikaʻi ʻia ka ʻenehana hana a me ka pae kaʻina o ka ʻili synthetic maka i nā makahiki i hala.Akā e like me nā mea kūʻai maʻamau, ʻaʻole ʻike ka poʻe he nui i ka ʻokoʻa ma waena o nā mea PVC a me PU
1. Hoʻokaʻawale ʻia ka uhi polyurethane PU i loko o ka ukana i ʻelua mau ʻano: PU keʻokeʻo keʻokeʻo a me ke kala kala PU.ʻO ka hana maʻamau o ka PU keʻokeʻo keʻokeʻo a me ke kala kala e like me ka paʻi ʻana o PA, akā ʻo ka PU keʻokeʻo keʻokeʻo a me ke kala kala i loaʻa ka manaʻo piha, ʻoi aku ka elastic o ka lole, a ʻoi aku ka maikaʻi o ka wikiwiki, a me ke kala kala PU. Hiki i ka uhi ke kū i ke kaomi wai kiʻekiʻe, a ʻo ka uhi ʻana o ka PU he moisture permeability, ventilation, pale pale, a me nā mea ʻē aʻe, akā kiʻekiʻe ke kumukūʻai a ʻilihune ke kūʻē ʻana i ka wā.

2. Ke hoʻohālikelike ʻia me ka uhi ʻana o PU, ʻoi aku ka lahilahi a me ka liʻiliʻi o ka lole lalo o ka PVC coating, akā ʻo ke kiʻiʻoniʻoni o ka uhi PVC ʻaʻole ia he mea make wale nō, akā maʻalahi hoʻi ka makahiki.ʻO ka mea nui aku, ʻaʻole maikaʻi ka manaʻo o ka uhi PVC e like me ka uhi ʻana o PU.Maikaʻi ka papa, a ʻoi aku ka paʻakikī o ka lole.Inā puhiʻia i ke ahi,ʻoi aku ka nui o kaʻono o nā lole i uhiʻia i ka PVC ma mua o nā lole i uhiʻia e PU.

3. Ma waho aʻe o ka ʻokoʻa o ka manaʻo a me ka ʻono ma waena o nā lole i uhi ʻia i ka PU a me ka PVC i loko o nā ukana, aia kekahi ʻaoʻao ʻo ka uhi ʻana o ka PU he ʻili maʻamau, ʻoiai ʻo PVC ke kāpili.

4. ʻOi aku ka paʻakikī o ka hana ʻana o ka ʻili PU ma mua o ka ʻili PVC.No ka mea, ʻo ka lole kumu o PU kahi mea canvas PU me ka ikaika tensile maikaʻi, ma waho aʻe o ka uhi ʻia ʻana ma luna o ka lole kumu, hiki ke hoʻokomo pū ʻia ka lole kumu ma waena.ʻO ka noho ʻana o ka lole kumu ʻaʻole hiki ke ʻike ʻia ma waho.

5. ʻOi aku ka maikaʻi o ke kino o ka ʻili PU ma mua o ka ʻili PVC, me ke kūpaʻa tortuous, palupalu maikaʻi, ikaika tensile kiʻekiʻe, a me ka ea permeability (me ka ʻole o PVC).Hana ʻia ke ʻano o ka ʻili PVC e ka paʻi wela me ke kila kila.ʻO ke kumu o ka ʻili PU ʻo ia ka hoʻohana ʻana i kahi ʻano pepa kumu e wela ai a kaomi mua i ka ʻili o ka ʻili semi-finished, e kali a maʻalili, a laila e hoʻokaʻawale i ka ʻili pepa no ka mālama ʻana i ka ʻili.ʻOi aku ke kumukūʻai o ka ʻili PU ma mua o ka pālua o ka ʻili PVC, a ʻo ke kumukūʻai o ka ʻili PU me kekahi mau koi kūikawā he 2-3 mau manawa kiʻekiʻe ma mua o ka ʻili PVC.ʻO ka maʻamau, hiki ke hoʻohana ʻia ka pepa kumu no ka ʻili PU no 4-5 mau manawa a e ʻoki ʻia.He lōʻihi ke ola lawelawe o ka roller pattern, no laila ʻoi aku ka kiʻekiʻe o ke kumukūʻai o ka ʻili PU ma mua o ka ʻili PVC.

Ma kēia ala, ʻoiai mākou e hoʻomaopopo i nā ʻano ma waena o nā mea ʻelua, ʻoi aku ka maʻalahi o nā mea kūʻai ʻole ʻoihana e ʻike inā he PU a PVC paha ka ukana.Pono wale ia e hoʻokaʻawale mai nā helu ʻekolu: ʻo ka mea mua, ʻo ka manaʻo, ʻo Pu ka palupalu a me ka elastic, ʻoiai ʻo ka pvc ʻoi aku ka paʻakikī a maikaʻi ʻole i ka hoʻopā ʻana.ʻO ka lua, e nānā i ka lole kumu, ʻoi aku ka mānoanoa o ka lole kumu o ka pu a ʻoi aku ka lahilahi o ka ʻili plastik, a ʻo ka pvc ka lahilahi.ʻO ke kolu ke ʻā, ʻoi aku ka māmā o ka ʻono o ka pu ma hope o ke puhi ʻana.

Ma muli o ka mea i luna, hiki iā mākou ke huki i kahi hopena: ʻoi aku ka maikaʻi o ka hana o ka ʻili PU ma mua o ka ʻili PVC, a ʻoi aku ka maikaʻi o nā ukana PU ma mua o nā ukana PVC!