Nokutimafirimu ekurongedza chikafuvane zvakanakisa zvimiro zvekudzivirira zvakaringana kuchengetedzwa kwechikafu, uye kujeka kwavo kwepamusoro kunogona kushongedza kurongedza, mafirimu ekurongedza chikafu anoita basa rinowedzera kukosha mukurongedzerwa kwezvinhu. Kuti asangane nezviri kuitika zviri kuitika kunze nharaunda uye zvinodiwa nevatengi vakasiyana, makambani mazhinji pasirese akawedzera tsvakiridzo nekusimudzira kuedza kwemafirimu ekurongedza chikafu.
1. General kurongedza firimu
Parizvino anowanzo shandiswa kurongedza chikafu mafirimu anonyanya kusanganisira: PVA coated barrier film, biaxially oriented polypropylene film (BOPP), biaxially oriented polyester film (BOPET), naironi film (PA), cast polypropylene film (CPP) , aluminized film, etc. Aya mafirimu anoshandiswa zvakanyanya nekuda kwekuita kwavo kwakanaka, kujeka kwakanaka, kusimba kwakanyanya, imwe gasi uye mvura inodzivirira zvivakwa uye mutengo wakaderera wekugadzira.
2. Firimu yekurongedza inodyiwa
Mafirimu ekurongedza anodyika anoreva zvinhu zvinodyika, kunyanya zvechisikigo macromolecular zvinhu senge lipids, mapuroteni uye polysaccharides, anowedzerwa neanodyiwa epurasitiki, muchinjika-anobatanidza maajenti, nezvimwewo, akasanganiswa kuburikidza nemhedzisiro yemuviri, uye akagadziriswa kuburikidza neakasiyana maitiro ekugadzirisa Iyo firimu yakaumbwa. Zvinoenderana nehunhu hwemhando huru yemidziyo inoshandiswa, mafirimu anodyiwa anogona kupatsanurwa muzvikamu zvina: mafirimu anodyiwa ane makabhohaidhiretsi, mapuroteni anodyika mafirimu, lipid anodyika mafirimu, uye anosanganiswa mafirimu anodyiwa. Mafirimu anoshanda anodyika ave achishandiswa zvakanyanya muhupenyu hwezuva nezuva, senge akajairwa glutinous bepa remupunga rinoshandiswa mukurongedza zvihwitsi, chibage kubikira makapu ekurongedza eice cream, nezvimwe, izvo zvese zvinodyiwa zvekurongedza. Kuenzaniswa neyakagadzirwa yekurongedza zvinhu, mafirimu anodyika anogona kuvandudzwa pasina kusvibiswa. Nekuvandudzwa kwekuziva kwevanhu kwezvakatipoteredza, mafirimu anodyika akakurumidza kuita nzvimbo yekutsvagisa mumunda wekurongedza chikafu uye akawana mamwe mhedzisiro.
3. Antibacterial food packaging film
Antibacterialfirimu rekurongedza chikafuimhando yefirimu inoshanda ine simba rekudzivisa kana kuuraya mabhakitiriya epamusoro. Zvinoenderana nemhando yeantibacterial, inogona kukamurwa kuva marudzi maviri: yakananga antibacterial uye isina kunanga antibacterial. Yakananga antibacterial inowanikwa kuburikidza nekubatana kwakananga pakati pekurongedza zvinhu zvine antibacterial ingredients uye chikafu; indirect antibacterial inonyanya kuwedzera zvimwe zvinhu kune mutakuri anogona kugadzirisa iyo microenvironment mupakeji, kana kushandisa yakasarudzika permeability yezvinhu zvekurongedza kudzora tupukanana. Kukura, seyakagadziridzwa mamiriro ekurongedza firimu.
4. Nanocomposite kurongedza firimu
Nanocomposite firimu inoreva firimu rinoumbwa rakaumbwa nezvikamu zvine zviyero pahurongwa hwenanometers (1-100nm) akaiswa mumatrices akasiyana. Iyo ine mabhenefiti ezvese echinyakare composite zvinhu uye zvemazuva ano nanomaterials. Nekuda kwechimiro chepamusoro, vhoriyamu mhedzisiro, saizi maitiro uye humwe hunhu hunokonzerwa neiyo yakakosha chimiro che nanocomposite mafirimu, iwo optical zvimiro, mechanical properties, antibacterial properties, barrier properties uye zvimwe zvinhu zvine hunhu husina zvinhu zvakajairwa, zvichiita kuti zvive zvakakosha. muchikafu. Inoshandiswa zvakanyanya mukurongedza, kwete kungosangana nezvinodiwa zvekuwedzera hupenyu hwesherufu yechikafu, asiwo kutarisa shanduko yemhando yechikafu mupakeji.
5. Biodegradable packaging film
Iri rudzi rwefirimu rinonyanya kugadzirisa dambudziko rekuti zvinonetsa kudzoreredza zvimwe zvisiri-kuora zvekurongedza zvinhu. Kuaviga pasi pevhu kuchaparadza chimiro chevhu, uye kupisa kuchaita magasi ane chepfu uye kukonzera kusvibiswa kwemhepo. Zvinoenderana nemaitiro ekudzikisira, inonyanya kukamurwa kuita photodegradable kurongedza firimu uye biodegradable kurongedza firimu.
Nekuti mafirimu anoshatisa anosangana nezvinodiwa zvekuchengetedzwa kwezvakatipoteredza, iye zvino akadzidzwa zvakanyanya uye akakwezva kutarisa kwevaongorori vakasiyana. Zvizhinji zvitsva zvinoshatisa uye zvine hushamwari zvakatipoteredza zvakagadziridzwa, senge mapolymers akagadzirwa kubva kune sitachi mbishi zvinhu achishandisa zvinodzoreredzwa chirimwa zviwanikwa (sechibage). Lactic acid (PLA), ipurasitiki inoshamwaridzana nepolypropylene carbonate (PPC) yakagadzirwa kubva kucarbon dioxide uye propylene oxide seyakagadzirwa, uye chitosan (chitosan) inowanikwa kubva ku deacetylation yechitin, iyo inowanikwa zvakanyanya muzvisikwa. . Zvinhu izvi zvinhu zvakaderedzwa; iyo optical properties, kujeka, uye kupenya kwepamusoro hakunawo kuparara zvachose. Haingosangana chete nekujeka kwepamusoro kwemafirimu ekurongedza, asi zvakare inoita basa rinoshanda mukuvandudza nharaunda, uye ine tarisiro huru yekushandisa.
Nekudaro, zvakakosha kuti titaure kuti chikafu chekurongedza firimu chine zvakaomesesa zvinodiwa pahutsanana uye kuchengetedzeka kwezvinhu zvekurongedza, uye inoda zvinoenderana akakodzera zviyero uye maitiro ekuyedza. Kunyangwe mamwe matanho akatorwa kumusha nekune dzimwe nyika, pachine zvakawanda zvinokanganisa. . Nyika dzekunze dzichangobva kuvandudza tekinoroji yeplasma yepamusoro yekurapa tekinoroji kufefetedza SiOx, AlOx uye mamwe inorganic oxide coatings pamasubstrates akadai sePET neBOPP kuti vawane kurongedza mafirimu ane yakakwirira barriers zvivakwa. Iyo silicone-yakavharwa firimu yakagadzikana kune tembiricha uye inokodzera kupisa-tembiricha yekubika uye sterilization chikafu pakiti. Mafirimu anoshatiswa, mafirimu anodyika uye mafirimu anonyungudika nemvura zvese zvigadzirwa zvegirinhi zvekurongedza zvakagadzirwa nenyika dzepasirese mumakore achangopfuura. Tsvagiridzo pamusoro pekushandiswa kwechisikigo macromolecular polymers senge lipids, mapuroteni uye shuga semafirimu ekurongedza kwave kuwedzera.
Kana iwe uine chero chikafu chekurongedza firimu zvinodiwa, unogona kutibata nesu. Semugadziri anochinjika wekurongedza kweanopfuura makore makumi maviri, isu tinokupa yako chaiyo yekurongedza mhinduro zvinoenderana nechigadzirwa chako chinodiwa uye bhajeti.
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Nguva yekutumira: Zvita-27-2023
