Ko ngā putea tākai mō ngā tauera kāinga he mea hanga ki te polyethylene iti-kiato (LDPE) te copolymer polypropylene rānei (CPP), kia ngawari ai, kia mātotoru ai, kia ātete ai ki te makuku me te haehae hei tiaki i ngā tauera mai i te makuku.

Ka whakamahia te tohu huri tae laser UV ki te paparanga o waho, hei whakarerekē i te hanganga ngota o te paninga kia mārama ai ngā tohu mō te rā hanga. Mā tēnei tikanga kore-pau ka whakarite kia ātete ki te kakahu, kia memeha hoki ngā tohu, ā, ka mau tonu te mārama i roto i te wā.

Mā te tohu taiaho UV i runga i te paninga PET o waho o ngā putea takai hiato PET/AL/PE ka whakamahia ngā hihi taiaho kaha-nui hei whakaoho i ngā tauhohenga whakaahua-matū me ngā pānga wera iti. Ina whakamahia ki te paninga mā, ka whakarerekē te taiaho i te hanganga ngota, ka huri te mata i te hina, kaua e tango noa i te paparanga.

Mā tēnei mātāpono whakarerekētanga tae ka mārama, ka roa hoki ngā tohu, e whakamahia whānuitia ana mō te tā i ngā rā whakaputa me ngā tau puranga. Ka noho ātete tonu ngā tohu ki te pakaru me te memeha, ka noho mārama tonu ahakoa te whakamahinga roa, te āhua kino rānei o te taiao.

Ko te takai o ngā papa horoi he mea hanga ki te kiriata hiato polyethylene (PE)/polypropylene (PP), he mea tino ngāwari mō te totoro me te hiri. He kakano matte me te āhua whakamarie, he ātete pai ki te makuku me te puehu, he mea tiaki pai i te hua me te pupuri tonu i te kaha o te takai.

Ka tautokohia e tēnei kiriata hiato te tohu UV laser, ka puta he tauhohenga whakaahua-matū i roto i te paninga e te laser, ka huri i tōna tae hei hanga tohu hina i runga i te mata mā mō ngā rā whakaputa me ngā tau puranga. Mā tēnei tikanga ka mārama, ka roa hoki ngā tohu e ātete ana ki te memeha ahakoa te rokiroki me te kawe mō te wā roa.

Ko ngā putea tākai kai he mata maeneene hiriwa-mā, he mea hanga ki te pepa konumohe (AL) me te PET composite, e whakamahia whānuitia ana mō ngā tākai kai ārai-teitei. He kanapa whakarewa ēnei putea me te kakano matte, e tuku ana i te makuku, te waikura, me te ātete ki te mārama, kia noho hou, kia pakari hoki te kai i te wā e kawe ana me te penapena ana.

He mea whakamahi noa ēnei putea mō ngā pīni kawhe, tī, nati, mea kakara, me ngā kai reka kua rite ki te kai, ā, ka pupuri tonu i te hou me te kakara o te kai. Ka tangohia e te tohu muka reera te paninga o te mata, ka whakaatu i te tae hohonu ake hei hanga i ngā tohu mārama, pakari mō te rā whakaputa me te tau puranga e ātete ana ki te kakahu me te memeha.

Ko ngā putea takai nūru he mea hanga i te rauemi hiato BOPP/PE (polypropylene/polyethylene biaxially oriented). He tino mārama te paparanga o waho o te BOPP, ā, he tino pai te tānga, e āhei ai te kitea o ngā nūru, me te ātete hoki ki te makuku mō te hou. He ngohengohe te paparanga o roto o te PE, kāore e paitini, ā, he haumaru mō te kai, he kaha hoki te hiri wera hei whakarite i te hiri haumaru, ātete makuku.

Kua tohua he wāhi mā-pani ki runga i te mata BOPP mō te tohu i te laser UV. Mā te whakamahi i te kaupapa whakarerekētanga tae laser, ka whakarerekētia te tae o te paninga kia mārama ai ngā rā whakaputa me ngā tau puranga, me te kore e wero i te takai. Mā ngā tohu pakari, ātete-mau ka whakarite kia haumaru te hua i te wā e kawe ana, e penapena ana hoki.

Ka whakamahia te hangarau tohu taiaho UV ki runga i te tapanga takai PET o ngā pounamu horoi kanohi porotaka, kia mārama ai ngā tohu rā hanga i runga i ngā mata piko. Ka mahi te taiaho mā roto i tētahi tikanga whakarerekētanga tae, ka whakaohohia e ngā hihi kaha-teitei he tauhohenga whakaahua-matū, ka whakarerekē i te hanganga ngota o te mata PET kia puta ai he tohu hina-mā, he tohu pōuri rānei, me te kore e tangohia ngā rauemi.

He pai rawa tēnei tikanga mō ngā mata piko, he iti te pānga o te wera hei ārai i te kino, i te whakarerekētanga rānei o te mata.

Ko ngā pēke iti mō te wai hua kua kukūhia he mea hanga ki te rauemi hiato PET/AL/PE. He pakari te paparanga PET o waho, ā, he ātete ki te pakaru, ka ārai te paparanga konumohe (AL) i te mārama, te hāora, me te makuku, ko te paparanga PE o roto ia ka whakarite i te haumaru me te hiri o te kai.

Hei tohu i ngā rā whakaputa me ngā tau puranga, ka whakamahia te tohu taiaho UV ki te paparanga o waho o te PET. Ka puta he tauhohenga whakaahua-matū i te taiaho e whakarerekē ana i te hanganga ngota o te mata PET, ka puta he tohu hina, he tohu pōuri rānei, me te kore e wero i te takai. Mā tēnei tikanga ka mārama, ka ātete ki te kakahu, me te pupuri tonu i te kounga o te pepa konumohe me ngā paparanga PE, ka ārai i te turuturu o te wai.