Sechinyorwa chekudhinda, firimu repurasitiki remabhegi ekurongedza chikafu rine nhoroondo ipfupi. Iyo ine mabhenefiti ekureruka, pachena, hunyoro kuramba, oksijeni kuramba, airtightness, kuoma uye kupeta kuramba, yakatsetseka pamusoro, uye kudzivirira kwezvinhu, uye inogona kubereka chimiro chechigadzirwa. uye ruvara. Nekuvandudzwa kweindasitiri yepetrochemical, kune akawanda uye akawanda marudzi emafirimu epurasitiki. Mafirimu epurasitiki anowanzo shandiswa polyethylene (PE), polyester aluminized film (VMPET), polyester film (PET), polypropylene (PP), naironi, nezvimwewo.
Zvimiro zvemafirimu epurasitiki akasiyana zvakasiyana, kuoma kwekudhinda kwakasiyanawo, uye mashandisirwo emidziyo yekurongedza zvakare akasiyana.
Polyethylene firimu imhando isina ruvara, isinganakidze, haina kunhuhwirira, translucent isiri-chepfu yekupisa yekupisa yekupisa, iyo inoshandiswa zvakanyanya mukugadzira mabhegi. Iinert material, saka yakanyanya kuoma kudhinda uye inofanirwa kugadziriswa kuti idhindwe zviri nani.
Firimu realuminium rine zvese hunhu hwefirimu repurasitiki uye hunhu hwesimbi. Pamusoro pefirimu yakaputirwa nealuminium kudzivirira kubva pachiedza uye UV mwaranzi, iyo isingangowedzere hupenyu hwesherufu yezviri mukati, asiwo inowedzera kupenya kwefirimu. Iyo inotsiva aluminium foil kune imwe nhanho, uye ine zvakanakira mutengo wakaderera, kutaridzika kwakanaka uye yakanaka barriers zvivakwa. Mafirimu eAluminized anoshandiswa zvakanyanya mucomposite kurongedza. Inonyanya kushandiswa mukurongedza kwezvakaoma uye zvakakangwa zvekudya zvakaita semabhisikiti, uye kurongedza kwekunze kweimwe mishonga uye zvizorwa.
Firimu yepolyester haina ruvara uye yakajeka, inopupurirwa nemhepo, isina mhepo, yakapfava, yakasimba-yakasimba, inopesana neasidhi, alkali, mafuta uye solvent, uye haityi kupisa kwepamusoro uye kwakadzika. Mushure mekurapa EDM, ine kunaka kwepamusoro kutsanya kune inki. Zvekurongedza uye zvinosanganiswa zvinhu.
Polypropylene firimu ine gloss uye pachena, kupisa kupisa, asidhi uye alkali kuramba, solvent resistance, abrasion resistance, kubvarura kuramba uye kunaka gasi permeability. Haikwanise kuvharwa nekupisa kuri pasi pe160°C.
Firimu renaironi rakasimba kupfuura firimu repolyethylene, harina kunhuhwirira, harina chepfu, uye haripindire mabhakitiriya, mafuta, esters, mvura inofashaira uye yakawanda inonyungudutsa. Inowanzo shandiswa kutakura-kutakura, abrasion-resistant packaging uye retort packaging (chikafu kudzorerazve) uye inobvumira kudhinda pasina kurapwa kwepamusoro.
Kuprinda nzira dzemafirimu epurasitiki anosanganisira flexographic printing, gravure printing uye screen printing. Kudhinda ingi kunoda viscosity yakakwirira uye kunamatira kwakasimba, saka mamorekuru einki anonamatira zvakasimba kune yakaoma epurasitiki uye anoparadzaniswa nyore nyore neokisijeni mumhepo kuti aome. Kazhinji, inki yefirimu repurasitiki rekudhindwa kwegravure inoumbwa nesimbi yakagadzirwa senge primary amine uye organic solvent ine doro uye pigment sezvikamu zvikuru, uye inki yakaoma yakaoma inoumbwa kuburikidza nekuputsika kwakakwana uye kupararira kuumba colloidal fluid ine. mvura yakanaka. Iine maitiro ekushanda kwakanaka kwekudhinda, kunamatira kwakasimba, ruvara rwakajeka uye kukurumidza kuoma. Inokodzera kudhinda neconcave print vhiri.
Ndinovimba chinyorwa ichi chinogona kukubatsira uye kukuita kuti udzidze zvakawanda nezve kurongedza.
Nguva yekutumira: Jun-16-2022