Mu 1951, kampani yotchedwa Flexigrip, Inc. idakhazikitsidwa kuti ipange ndikugulitsazipi ya pulasitikidzina lomweli. Zipu iyi idachokera pa seti ya ma patent, omwe adagulidwa kwa wopanga wawo, Borge Madsen. Zogulitsa zoyambirira za Flexigrip ndi zinazipi zapulasitiki(mongazipi zopanda zingwe(toptite) zomwe zinapangidwa ndi Flexigrip) zinali zomangira zomangira zotayirira ndi zikwama zamatabwa zosalala. Pambuyo pake, ntchito zotsatsa malonda zinalunjika ku zolongedza zinthu mumatumba apulasitiki a zipi, yomwe inakhala msika waukulu wa zinthu za Flexigrip, Inc.. Mu 1961, Flexigrip, Inc. inapeza kuchokera ku kampani yaku Japan, Seisan Nippon Sha, yomwe inapanga mtundu wa Minigrip.thumba la zipi la pulasitiki, ufulu wokhawo wopanga ndi kugulitsa wa United States, kutengera mndandanda wazipi ya pulasitikiMa patent a Seisan. Kampani yokhala ndi dzina lomweli idapangidwa kuti ipange ndikugulitsaMatumba a MinigripMu 1964 kapena cha m'ma 1964, Minigrip, Inc. inakambirana za chilolezo chapadera cha malonda ogulitsa zakudya (masitolo akuluakulu) ndi Dow Chemical Company cha malonda a Minigrip. Izi zinakhala zopambana kwambiri.
Panthawi imeneyo,matumba apulasitikizinkapangidwa m'maiko 25 pa liwiro la mzere wa mapazi 30 pamphindi, koma palibe chomwe chinali kugulitsidwa kwa ogula chifukwa chinali chokwera mtengo kwambiri kuti chipangidwe. Dow adapatsa m'modzi mwa opanga awo, R. Douglas Behr, kuti apange njira yothamanga kwambiri komanso yothandiza. Popeza anali ndi chidziwitso chochepa pankhaniyi,mapulasitiki, ntchitoyi inali yovuta kwa Behr koma adapambana aliyense padziko lonse lapansi mkati mwa chaka chimodzi. Pamene adakonza njira yogwirira ntchito ndikuwonjezera liwiro la mzere kufika pa 60, kenako 90, kenako 150 ndipo potsiriza mapazi 300 pamphindi mu 1972, adayenera kupanga zida zatsopano. Zina zinali ndi patent ndipo zina zidasungidwa ngati zinsinsi zamalonda ndi Dow. Pamapeto pake, ogwira ntchito zina zofufuza ndi kupanga, monga katswiri wa labu William Shrum ndi ena, adathandizira pakukula kwa njirayo, koma Behr adapitilizabe kukhala wofufuza wamkulu mpaka atapuma pantchito mu 1993 monga wasayansi wamkulu wothandizira. Panthawiyo nyumba yofufuzirayo inali "Yodzipereka Pozindikira Ntchito Yodziwika bwino ya R. Douglas Behr".
Zimenezo'Palibe kukayika kuti. PopezaMu 1978, Minigrip idagulidwa ndi Signode, Inc. ndipo idakhala kampani yocheperako ya kampaniyo. Mu 1986, Signode ndi Dow adapanga kampani, yotchedwa Zippak, kuti ipange.matumba a zipiza zakudya. Mu 1987, ITW idagula Signode, ndipo Minigrip idakhala kampani yothandizira ITW. Mu 1991, ITW idapeza chidwi cha Dow muZippakndicholinga chotiZippakinakhala kampani yothandizidwa ndi ITW. Zippak imapangazipi zapulasitikikwamsika wolongedza chakudyaKuyambira nthawi yomwe idakhazikitsidwa mpaka lero, Flexigrip/Minigrip/Zippak/Dow/Dow Brands yapeza ma patent opitilira 300 azipi zapulasitiki, matumba a zipi, ndi njira ndi makina opangira zomwezo. Mu 1997, Dow Chemical idagulitsa ufulu wa DowBrands, womwe udaphatikizapo Ziploc, kwa SC Johnson pamtengo wapakati pa $1.3 ndi $1.7 biliyoni. Zip-Pak idapanga zipper zogwirizana ndi Polypropylene mu 2003.
Komabe aguluZiplocndiZippak'sOpikisana nawo ndi Presto, kampani yothandizidwa ndi Reynolds, ndi Pactiv. Mu 1995, Hefty, imodzi mwa makampani a Reynolds, adatuluka ndi ndalama zochepa.chikwama cha zipi.
Zogulitsa
Ziploc yakulitsa zinthu zawo kukhala zoposa matumba a masangweji okha. Zogulitsa za Ziploc tsopano zimasiyana kuyambira matumba a mufiriji mpaka zotengera zopindika. Ali ndi matumba apansi omwe amatha kukulitsidwa omwe amadziyimira okha. Alinso ndi matumba akuluakulu. Matumba awa amagwiritsidwa ntchito posungira zakudya ndipo ndi aakulu ngati 0.61 m × 0.82 m (2 ft x 2.7 ft). Matumba a zip n'steam amagwiritsidwa ntchito kuphika chakudya mu microwave. Ma totes osinthika opangidwa ndiZiplocamagwiritsidwa ntchito posungira zakudya osati chakudya ndipo ndi aakulu ngati magaloni 22 aku US. Posachedwapa, Ziploc yapanga mzere wosinthika wa matumba a masangweji ndi osungira. Matumba onse omwe ali mu mzerewu amapangidwa ndi pulasitiki yocheperako ndi 25% ndipo amapangidwa pogwiritsa ntchito mphamvu ya mphepo. Thumba la masangweji la Ziploc Evolve lidapambana kwambiri kotero kuti lidaonedwa ngati "Labwino Kwambiri" pa Mphotho Zatsopano Zabwino Kwambiri za 2010 ku Canada.
Kutsatsa
SC Johnson ndi Son amagwiritsa ntchito malonda olembedwa, pa intaneti, olumikizana, komanso owulutsidwa pa TV pazinthu zawo za Ziploc. Malondawa amachitikira ku: Brazil, Germany, Thailand, United States ndi mayiko ena ambiri. Mtsogoleri wa malonda ku Ziploc ndi Scott Heim yemwe amayendetsa ma kampeni awo otsatsa a madola mamiliyoni ambiri. Mu 2002, SC Johnson & Son idayambitsa kampeni yake yayikulu kwambiri m'mbiri, kampeni yopitilira $50 miliyoni yoyambitsa mzere watsopano wa zinthu zotayidwa patebulo/zosungira zomwe zidzagulitsidwe pansi pa dzina la kampani ya Ziploc. SC Johnson nthawi zambiri imayang'ana kwambiri ma kampeni awo ku malonda a pa TV. Mu kampeni ya 2002, $35 miliyoni idaperekedwa ku kampeni ya pa TV. Mu 2015, adapanga kampeni yotsatsa ndi Tough Mudder kuti alengeze kwa amayi kudzera munjira yolepheretsa.
Kupanga
Kupanga kwaMatumba a Ziploczimasiyana pakati pa zinthu zosiyanasiyana. LamuloliZiplocChikwama chosungiramo zinthu ndi chosungira mufiriji chimapangidwa kuchokera kupulasitiki ya polyethylene.
Mpikisano
Ziploc ikukumana ndi mpikisano wamphamvu kuchokera kwa opikisana nawo monga Glad, Hefty, ndi masitolo ambiri omwe ali ndi anthu payekha.matumba apulasitikindi makontena. Monga momwe Jules Rose, wapampando wa Sloan's Supermarkets Inc. ku New York City, akunenera: “Uwu ndi msika wopikisana kwambiri wokhala ndi osewera ambiri komanso malonda amphamvu kwambiri a zilembo zachinsinsi.” Mu 1992, Ziploc idakumana ndi mpikisano mwadzidzidzi kuchokera ku malonda ochulukirachulukira a thumba la Glad-Lock la First Brands Corporation lomwe linali mdani wake wamkulu. Matumba a Glad Lock adakwera ndi 13.1% m'masabata 12 kumapeto kwa 1992, zomwe zidapatsa Glad-Lock gawo la 18.4% pamsika poyerekeza ndi gawo la Ziploc la 43%.
Nthawi yotumizira: Okutobala-22-2022