一、 Gucapa ibiryo byoroshye ibikoresho byo gupakira
①Uburyo bwo gucapa
Icapiro ryibiryo byoroshye cyane cyane ni icapiro rya gravure no gucapa flexografiya, hanyuma hagakurikiraho gukoresha imashini icapa flexographic kugirango icapishe firime ya plastike (imashini icapa imashini ya flexografiya hamwe nimashini yumye igizwe ahanini numurongo wibyara umusaruro), ariko hariho itandukaniro ryinshi ugereranije nicapiro rusange rya gravure na icapiro rya flexographic rikoreshwa mugutangaza no gucapa ibicuruzwa. Kurugero, icapiro ryoroshye ryo gucapura rikorwa hejuru yububiko bwa substrate. Niba ari firime ibonerana, igishushanyo gishobora kugaragara inyuma, kandi rimwe na rimwe hagomba gucapurwa irangi ryera, cyangwa inzira yo gucapa imbere.
②Igisobanuro cyimyandikire yimbere
Icapiro ryimbere bivuga uburyo bwihariye bwo gucapa bukoresha isahani yo gucapa ishusho yinyuma kugirango yimure wino kuruhande rwimbere rwibikoresho byacapishijwe neza, kugirango yerekane ishusho nziza ishusho imbere yikintu cyacapwe.
③Ibyiza byo mu Buhinde
Ugereranije nibicuruzwa byacapwe hejuru, ibicuruzwa byacapwe imbere bifite ibyiza byo kumurika kandi byiza, ibara ryiza / kwihuta, ubushuhe no kwihanganira kwambara; Nyuma yo gucapura imbere, urwego rwa wino rushyizwe hagati yibice bibiri bya firime, bitazanduza ibipfunyika.
二、 Igizwe nibiryo byoroshye ibikoresho byo gupakira
①Uburyo butose
Igice cyamazi yangirika yamazi yometse hejuru yibikoresho fatizo (firime ya plastike, foil ya aluminium), ikomatanyirizwa hamwe nibindi bikoresho (impapuro, selofane) binyuze mumashanyarazi, hanyuma ikumishwa muri firime ikoresheje ubushyuhe. umuyoboro. Ubu buryo burakoreshwa mugupakira ibiryo byumye.
②Uburyo bwumye
Ubwa mbere, kuringaniza umwenda ushingiye kumashanyarazi kuri substrate, hanyuma ubyohereze mumuyoboro ushyushye kugirango umuyaga uhindurwe neza, hanyuma uhite wuzuza urundi rwego rwa firime. Kurugero, firime irambuye ya polypropilene (OPP) muri rusange yunganirwa nibindi bikoresho hakoreshejwe uburyo bwumye nyuma yo gucapa imbere. Imiterere isanzwe ni: firime ya polypropilene yerekanwe (BOPP, 12μ m) Ifu ya Aluminium (AIU, 9μ m) Kandi filime ya polypropilene irambuye iterekanwa (CPP, 70μ m)。Inzira nugushushanya kuringaniza ubwoko bwa "ifu yumye yumye" kumubiri wibanze hamwe nigikoresho cyo gutwikisha uruziga, hanyuma ukayohereza mumuyoboro ushyushye kugirango uhindure neza umusemburo, hanyuma ukawushyira hamwe nurundi rwego rwa firime hamwe uruziga.
③Uburyo bwo kuvanga ibintu
Umwenda umeze nka polyethylene yashongeshejwe uva mu gice cya T uhindurwa igitutu na roller ya clamping hanyuma ugasukwa ku mpapuro cyangwa firime yo gutwikira polyethylene, cyangwa izindi firime zitangwa mugice cya kabiri cyo kugaburira impapuro, kandi polyethylene ihambiriwe nka a guhuza urwego.
④Uburyo bushyushye bwo gushonga
Polyethylene-acrylate copolymer, vinyl acide-Ethylene copolymer na paraffin birashyuha kandi bigashonga hamwe, hanyuma bigashyirwa ku bikoresho fatizo, bigahita byongerwaho nibindi bikoresho hanyuma bigakonja.
⑤Uburyo bwinshi bwo gukuramo ibintu
Ibisigazwa bitandukanye bya pulasitiki bifite imiterere itandukanye byinjizwa mubibumbano binyuze muri extruders nyinshi kugirango bikore firime. Iyi nzira ntabwo ikoresha ibifata hamwe nigishishwa kama hagati yinzego. Filime ntabwo ifite impumuro idasanzwe kandi nta kwangiza kwangiza. Irakwiriye gupakira ibiryo hamwe nubuzima buramba. Kurugero, imiterere rusange LLDPE / PP / LLDPE ifite umucyo mwiza, kandi ubunini muri rusange ni 50-60μ m. Niba igihe cyo kuramba ari kirekire, birakenewe gukoresha ibice birenga bitanu bya barrière ndende hamwe na firime, kandi igice cyo hagati nikintu kinini kibuza PA, PET na EVOH.
Igihe cyo kohereza: Werurwe-07-2023
