A mapurasitiki bhegi muupenyu hwedu

Kavha zvinhu kwagara chinokosha pagadzirwe muitiro upi kambani kuzvipira pamusoro. Kugadzirwa remakore - epurasitiki zvinhu - akwanise zvikuru basa vanogadzira navatengesi.

Nenyama, mukurumari, mwando nemishonga, huri pasi mari - rinokosha chaizvo zviratidzo zviri kavha zvinhu. Bhegi mapurasitiki saka nokukurumidza uye zvakasimba midzi hwedu kuti tinofunga tinogona kuvazve kuita pasina izvozvo.

prehistory

chiputiriso mabhegi First kubudiswa muna 1957 muUnited States. They inoshandiswa kurongedza sandwiches. Makore gumi gare gare, nechekare 30% of US bhekari zvigadzirwa rakazara muna package dzakadaro. Zvadaro, uye Western Europe ainakidzwa pasuru iyi, zvokuti muna 1973 kugadzirwa Mabhokisi yakasvika mamiriyoni 11.5 dzakabatana. Muna 2002, apo nyika yose yakanga yapararira tiguu polyethylene kavha, zvachose pose Vhoriyamu zvigadzirwa izvi ndizvo 4-5 matiririyoni pagore. Vatungamiriri mukugadzira youpfu chiputiriso Mabhokisi (4.5-5 m) - China, Russia, South-East Asia. The bhegi dzakaonda mapurasitiki anoitwa munhu gobvu polyethylene (yakaderera kumanikidzwa) HD (vanonzi "zenze"). Pacho rinoshandiswa mukuru kumanikidzwa polyethylene, asi pasi arambe achirema (ld, LLD), ipapo omumasherufu kuonekwa inotsvedzerera. Kunyange zvakadaro, kavha bhegi kwakadaro mutete ane kumusoro simba.

Siyana, uye saka dzinonakidza

Plastic bhegi ziso nguva dzose chinokwezva pfungwa kwete chete vana asiwo vakuru. Izvi zvinobatsira kuti rakajeka Appliques pamusoro ose nyaya. Four-mufananidzo kureva pasuru, achishandisa nzira flexographic kudhinda, inogona hwakanyatsorwisa inobudirira achishandisa kuzvisimudzira. Yakabudiswa rakasiyana-siyana zvigadzirwa zvichienderana kwavaienda: kurongedza masaga (pachena); Bag-hembe; bhegi ane mubato loop, prorubnoy; marara mumasaga (pamwe madhayi) ari mhando "t-shirts", kana Anoda anosungira; vakapiswa zvikwama (a vanozivikanwa). Ngationei kugara pamusoro Mabhokisi ari mhando "T-hembe". Izvi mhando chigadzirwa awana rimwe zita remadunhurirwa rokuti kuti hwezuva okurwadzisa Pazvibato. Kugadzirwa Mabhokisi "Mike" riri dating 1982 gore. Vakanga zvakabudiswa pava paya pane dzimwe zvigadzirwa ari muchikwata ichi, asi zvakadaro zvakasimba dzatora nenzvimbo mutungamiriri, kunyanya richikurukura zvebhizimisi mabhizimisi. A mutsauko kuri pnd- uye LDPE package. Kugadzirwa HDPE omumasherufu kwakavakirwa polyethylene granules mukuru kumanikidzwa, ukuwo, IPA - vakaderera kumanikidzwa. LDPE Mabhokisi - ndiko kavha zvinhu yatinoshandisa muupenyu hwezuva nezuva (nokuti diki uye svikiro-zvemano). Uye IPA-omumasherufu dzinoratidzwa kuti inoshandiswa kavha guru (20-30 kg) uye zvingava zvakasiyana uye asi husingakwanisi kunyanyisa mupfungwa uye kwakaomarara dzezvakatipoteredza zvinofurira. Saka, pasi arambe achirema polyethylene rinoshandiswa nokuda kwezvifananidzo zvaAtemisi mapaipi dzvinyiriro uye Fittings, waya sheathing.

ngozi

Hatigoni kukanganwa pamusoro kukuvadza epurasitiki bhegi ikoroji. Somugumisiro hanya kushandisa mapurasitiki zvigadzirwa Earth, nenzira yokufananidzira, ari akapotsa yakazara, uye chipenyu yose panyika anonzwa nemigumisiro yakaipa ichi (zvikurukuru, zvomugungwa utore mapurasitiki zvokudya). Hatifaniri kukanganwa kuti mumwe kilogram pasuru absorbs ari kugadzira muitiro 1,2 makirogiramu ane chinokosha - mafuta wakaipa. Worth kuyeuka kuti mapurasitiki anogona kushandiswazve: kubva tsvina mapepa akasungirwa dzinoitwa kuti zvikamu fenzi, inodiwa, Park zvigaro uye zvakawanda. Inogona pisa uye vaunze magetsi. Tinofanira kurangarira kuti polyethylene anogona kuva zvakasiyana - uye kunyange zvishoma muchetura soluble.