A thumba pulasitiki mu miyoyo yathu

Nkhani ma CD wakhala mbali yofunika kwambiri kwa ndondomekoyi ulimi wa kampani kudzilungamitsa kulemekeza. Kutulukira m'ma - zipangizo pulasitiki - ntchito kwambiri ntchito opanga ndi bongo.

Lightness, durability, chinyezi kukana, wotsika mtengo - ndi zizindikiro yofunika kwambiri ya nkhani ma CD. A thumba pulasitiki mofulumira ndi mwamphamvu mizu m'miyoyo yathu zimene timaganiza simungathenso kuchita popanda izo.

prehistory

Choyamba matumba kulongedza katundu opangidwa mu 1957 mu United States. Anagwiritsa ntchito kumunyamula masangweji. Patapita zaka khumi, kale 30% ya mankhwala ophika buledi US ankanyamula phukusi amenewa. Ndiye, ndipo Ulaya anachita chidwi ndi phukusili, ndi chifukwa chakuti mu 1973 ulimi wa phukusi anafika mamiliyoni 11,5. Mu 2002, pamene dziko lonse munayamba ma CD Boom polyethylene, chiwerengero padziko lonse buku la mankhwala amenewa ndi thililiyoni 4-5 pachaka. Atsogoleri a zotsimikizira zabwino wazolongedza phukusi (4.5-5 m) - China, Russia, Asia South-East. The woonda thumba pulasitiki unapangidwa polyethylene wandiweyani (otsika kuthamanga) HD (otchedwa "kaphokoso"). Nthawi zina amagwiritsidwa ntchito kuthamanga polyethylene, koma otsika kachulukidwe (LD, LLD), ndiye mapaketi kuoneka yosalala. Komabe, chotero woonda ma CD thumba ali mphamvu yapamwamba.

Osiyana, choncho chidwi

thumba pulasitiki zithunzi zonse amakopa chidwi cha osati ana komanso akuluakulu. Izi zimathandiza kuti appliqués owala pa mitundu yonse ya nkhani. Zinayi chithunzi ntchito kwa phukusi ntchito njira yosindikiza flexographic, angathe kutumikira monga njira ndi bwino kudzikuza. Yopangidwa osiyanasiyana mankhwala malingana kopita kwawo: atanyamula zikwama (poyera); Thumba-sheti; thumba ndi chogwirira kuzungulira, prorubnoy; matumba zinyalala (ndi nsalu) za mtundu "t-malaya" kapena woletsa zomangira; matumba kuwasindikiza (a chizindikiro). Tiyeni akukhala phukusi la mtundu "T-sheti". mtundu wa mankhwala chapeza ndi dzina lakuti chifukwa lililonse kudula amangomvera. Yopanga phukusi "Mike" ndi pachibwenzi 1982 chaka. Anali kusindikizidwa pasanafike mankhwala ena mu gulu ili, komabe mwamphamvu wotanganidwa malo a mtsogoleri, makamaka paziyangoyango za malonda. kusiyana A ndi pnd- ndi LDPE phukusi. Kupanga mapaketi HDPE zochokera polyethylene granules a kuthamanga, motero, IPA - otsika mavuto. LDPE phukusi - ichi ndi ma CD chuma, zomwe tingagwiritse ntchito pa moyo (yaing'ono ndi sing'anga-kukhuta). Ndipo IPA-mapaketi yodziwika mu ntchito pa ma CD lalikulu (20-30 makilogalamu) ndipo angakhale osiyana koma kugonjetsedwa ndi nkhawa zimabwezera makhalidwe chokhwima zachilengedwe. Choncho, otsika kachulukidwe polyethylene ntchito kupanga mipope kuthamanga ndi zovekera, chingwe sheathing.

kuopsa

Sitingathe kuyiwala za mavuto ndi thumba pulasitiki zachilengedwe. Chifukwa cha ntchito kusasamalira katundu pulasitiki Earth mophiphiritsa, pafupifupi nkulemba izo, ndi lonse amoyo dziko pa dziko amamva zotsatira zoipa izi (makamaka moyo m'madzi kudzachitika pulasitiki chakudya). Tisaiwale kuti aliyense phukusi kilogalamu zimatenga mu kupanga ndondomeko makilogalamu 1.2 wa lamtengo wapatali - ndi mafuta. Worth kukumbukira kuti pulasitiki akhoza reused: kuchokera ku mathumba zinyalala pulasitiki anapangidwa kwa zigawo mipanda, mipanda, paki mabenchi ndi zambiri. Zimakhala kuwotcha ndi kupanga magetsi. Tiyenera kukumbukira kuti polyethylene angakhale osiyana - ndipo ngakhale zochepa poizoni sungunuka.