The retort packaging bagine BOPA//LDPE chimiro chinoshandiswa zvakanyanya mukurongedza kwemapickles uye bamboo nhungirwa.BOPA//LDPE mabhegi akabikwa ane yakakwira tekinoroji index zvinodiwa.Kunyangwe imwe chiyero chemabhegi akapfava mabhizinesi anogona kugadzira mabhegi akabikwa, mhando yacho haina kuenzana, uye mamwe anozove nemhando yebatch yakawanda.mubvunzo.Pano, bepa rino rinoongorora mapoinzi akakosha mukugadzirwa kweBOPA//LDPE masaga akabikwa.
A. Kusarudzwa kwezvinhu
1. Kusarudzwa kwefirimu yeBOPA
① Bow phenomenon yenaironi firimu
BOPA firimu rinogona kugadzirwa netubular firimu kutambanudza nzira kana nendege biaxial kutambanudza nzira.Biaxially oriented naironi mafirimu anogadzirwa nenzira dzakasiyana-siyana ane mhedzisiro yeuta yakasiyana, iyo ine simba rakakosha pakunyanya kudhinda kwefirimu uye kupfava kwebhegi rekurongedza (kusanganisira kutaridzika kwebhegi repamusoro pamberi uye mushure mekuvira).
Iyo chaiyo nzira yekuona iko kukotama kwefirimu renylon ndeyekuyera kupisa kwekupisa kweiyo diagonal.Isu tinogona zvakare kuyedza kunyorova kwekupisa shrinkage chiyero chefirimu renylon zvinoenderana nemamiriro chaiwo ekushandiswa kwebhegi rakabikwa (senge 100 ℃, 30min).Izvo zviduku mutsauko pakati pe diagonal kupisa shrinkage rate, zviri nani kuenzana kwechigadzirwa;1.5%, hapazove newaring angle panguva yekugadzira bhegi.
② Mhando dzekutengesa pamusika
BOPA firimu rakakamurwa kuva mhando mbiri: kudhinda giredhi uye composite giredhi.Kudhinda giredhi rinogona kushandiswa kudhinda uye composite maitiro.Composite giredhi inongokurudzirwa kune akaumbwa maitiro asingade kudhindwa.Ukobvu kazhinji 12μm, 15μm, 25μm mbiri yakatarwa.15μm yeinochinjika yekurongedza inoumbwa firimu, 25μm yekutonhora-yakaumbwa aruminiyamu mishonga yekurongedza.Kaviri-mativi corona firimu rinofanirwa kushandiswa kana richishandiswa kune interlayer lamination uye kubikira uye kubika zvinangwa.
③Kiyi yemhando zvinodiwa zveBOPA firimu
a.Kana iyo inodiwa ye flatness yakakwira, iyo synchronously yakatambanudzwa firimu ine diki huta mhedzisiro inofanira kusarudzwa.
b.Iko kushushikana kwepamusoro kwefirimu ndeye ≥50mN/m kuti ive nechokwadi chekunamira kweinki.Iko kukosha kwekugadzirisa haisi iyo yakakura zviri nani.
c.Sarudza firimu rine zvakanaka kuchinjika kune hunyoro hunyoro kuti uve nechokwadi chekuwedzera kudhinda.
d.Sarudza iyo firimu yakasiyana-siyana ine diki yekupisa shrinkage rate (inonyoro kupisa shrinkage rate).
2. Kusarudzwa kwekupisa kwekuvhara jira PE
Musiyano pakati pebhegi rakabikwa PE neyakajairwa PE: ① zviri nani kupisa chisimbiso chesimba;② yakanaka kupisa sealability ye inclusions;→ Yakagadzikana kupisa chisimbiso kunaka;⑤ Kujeka kwakanaka, hapana mitsetse yemvura iri pachena;⑥ Hapana maziso ehove, tsvina, makristasi anokanganisa kushandiswa → Mafuro echitarisiko, kana kutoboora firimu rePA → Barrier performance yakadzikira, kana mafuta akabuda.Iwo matatu ekutanga emhando hunhu anonyanya kutsanangurwa nekugadzirwa kwepellet kwega rega remufirimu wePE panguva yekuvhuvhuta.
3. Kusarudzwa kweinki yekudhinda
Polyurethane ingi dzakakosha dzinowanzo shandiswa kudhinda firimu renylon: ① Benzene-isina uye ketone-isina akatevedzana;② Benzene-isina uye ketone-isina akatevedzana.
Paunosarudza ingi dzekudhinda, teerera kune:
①Kuramba kusarudzwa kwemamodhi emhando, senge F1200 tsvuku, 1500 tsvuku, F1150 tsvuku, F2610 goridhe tsvuku, F3700 orenji, F4700 yepakati yero uye mamwe mainki emavara einki ye polyurethane, inoratidzwa mubhuku kuti haigone kushandiswa BOPA. / PE Chimiro chakabikwa bhaisikopo kudhinda, mamwe mavara haapikisane neakabikwa, uye ruvara rwezvinhu zviri nyore kubuda kunze kana mvura yabikwa.
②Ingi yegoridhe neyesirivha inofanira kushandiswa nekuchenjerera.Kune inki yegoridhe neyesirivha, fekitori yeinki haikurudziri kuishandisa nekuda kwekubikira mumirayiridzo, asi mamwe masaga ekurongedza akabikwa pamusika anoshandisa goridhe nesirivha mavara.Tsika yakajairika ndeyekubvunza fekitori yeinki yekugadzira fomula isati yaiswa, uye zvakare Chenjera kusadhinda mumabhuroko makuru emavara.
③ Iyo firimu renaironi inofanirwa kuve neyakanaka inki adhesion kutsanya, kuitira kuti ive nechokwadi chekupedzisira peel simba rechikamu cheinki.
4. Kusarudzwa kwekunamatira
Sarudza chinonamira chinogona kumira kufashaira, uye simbisa dhigirii rekubatanidza-kubatanidza uye kurapa mushure mekusanganiswa.Mukuwedzera, iyo glue yakwegura inofanira kushandiswa nekuchenjerera (kazhinji inofanira kudziviswa), nokuti chiyero chinoshanda chemumiririri mukuru uye boka rinoporesa mumiririri weglue harina kuenzana panguva yekuiswa kweguruu rakwegura, uye glue. layer inongoita kuoma phenomenon.
5. Hunhu hunodiwa hwe ethyl acetate
Mvura nedoro mu ethyl acetate (kwete chete ethanol, asiwo zviri mukati methanol uye isopropanol zvinofanira kudzorwa) ichaita pamwe neanorapa agent muglue, uye mushonga unorapa uchapedzwa, zvichikonzera chiitiko chokuti glue layer. haiomesi.Chimwe chezvikonzero zvikuru zvekuunyana kwerubber layer yebhegi.
B. Gravure kudhinda maitiro
1. Kusarudzwa kwemhando dzeinki chaiyo
Inogadzirwa maererano nemhando yeinki inotsanangurwa nemaitiro.Semuenzaniso, mamwe ingi emamwe mavara haana kukodzera BOPA//PE kudhinda.
2. Kana iyo inki yekare inoshandiswa zvakare, zvakakosha kuwedzera zvinopfuura 50% inki itsva, uye iyo yakaora haifaniri kushandiswa.
3. Kana zvichidikanwa, chimwe chikamu chekurapa chinogona kuwedzerwa kune inki chena
Pane zvinangwa zviviri zvekuwedzera chimwe chikamu cheanorapa kune chena inki: chimwe ndechekuvandudza kupisa kweingi;imwe yacho ndeyekugadzirisa kushandiswa kwemishonga inoporesa nemapoka eresin muinki uye kudzivisa kupora kusina kukwana kweadhesive layer muzhizha.
Kuwedzera nzira: Dilute nesolvent kutanga, wobva wawedzera kuingi uchikuchidzira zvishoma nezvishoma kusvika yasanganiswa.
Nzira isina kururama: wedzera zvakananga mumiririri wekurapa muinki, kana kuiwedzera mutirayi yeinki, iyo isingazosanganisi zvakafanana, asi haigoni kuita mhedzisiro yekuwedzera mushonga wekurapa.
Pamusoro pezvo, chenjerera kuenderana nenguva: kurongeka kwenguva kunowanzo maawa gumi nemaviri, uye mumiriri wehusiku inki yekurapa apera, kana imwe huwandu hweanorapa hunofanirwa kuwedzerwa zvakare.
4. Unyoro-uchapupu hwekutarisira membrane yenylon
Nylon inotora hunyoro, uye inowanzoita ruffles, mipendero yakatenuka, mitsetse, yakaoma coloring, uye kunyoreswa kwemavara kusiri iko panguva yekudhinda.
Pakudhinda, zviri nani kudzora tembiricha uye hunyoro hwemusangano wekugadzira.Kana hunyoro hwemusangano wekugadzira hunopfuura 80%, iyo firimu renaironi iri nyore kutora unyoro nekusimuka, zvichikonzera nhevedzano yezvinetso zvemhando yezvigadzirwa.
Kunyanya, teerera kune anotevera maficha: ① Usavhura pasuru nekukurumidza usati washandisa.② Edza kuishandisa kumusoro panguva imwe chete, uye kuputira firimu rasara nechinhu chine zvakanaka zvipingamupinyi zvinhu.③ Paunenge uchidhinda, boka rekutanga remavara harisi paplate roller, uye rakafanoomeswa.④ Ita shuwa tembiricha inonzwisisika (25 ℃ ± 2 ℃) uye humidity (≤80% RH) mumusangano wekugadzira.⑤ Iyo firimu renaironi rakadhindwa rinofanira kunge rakazara nefirimu rinodzivirira hunyoro.
C. Dry composite process
1. Kusarudzwa kwehuwandu hweglue
Yakajairwa gluing huwandu huwandu: 2.8 ~ 3.2gsm, yakawandisa gluing huwandu haina chirevo pakupenengura simba, asi inowedzera kuomesa mutoro.Kune komputa michina isina kukwana kuomeswa simba, inowedzera mukana we delamination uye bhegi kuputsika mushure mekubika.
Paunenge uchiona huwandu hweglue, nyatsoteerera kushanduka kwemvura yemvura isati yasvika uye mushure mokunge firimu renylon richipfuura nemugero wekuoma, izvo zvinokanganisa kurongeka kwekuonekwa kwehuwandu hweglue!
Apo patinobudisa mabhegi akabikwa, hatifaniri kungotarisa huwandu hweglue, asiwo teerera kune microscopic uniformity yekunamatira coating.Iwo maparamendi e mesh roller anozokanganisa zvakananga iyo microscopic yunifomu yeadhesive coating.
2. Hunyoro hunodiwa hwe ethyl acetate
Hunhu husina kukwana hwe ethyl acetate (senge hunyoro hwakanyanya uye doro) kazhinji hunotungamira kune kuunyana kwetsaona dzemhando dzakabatanidzwa membranes.
Chinwiwa chedoro mu ethyl acetate kazhinji hachikwezve kutarisa kweakawanda anochinjika emabhizinesi ekurongedza.Iyo ethyl ester test data (barrel solvent) yebhizimusi rekurongedza rinochinjika yakawana kuti chigadzirwa chimwe chete chemhando yepamusoro uye maviri ekutanga-kirasi zvigadzirwa kubva mumabheji gumi nemana.Hunhu hwakashata, uye fekitori yakapfava pasuru inofanirwa kuterera.
3. Iva nechokwadi chokuti chinonamira chakaoma
Isu tinowanzo tarisa chete kune huwandu hweglue yakasanganiswa.Muchokwadi, kusakwana kuomeswa kunowanzo kukonzeresa kusakwana kwekurapa kwekunamatira (kusakwana kupisa kwekudzivirira kweiyo adhesive layer), delamination uye kuunyana kwebhegi rekurongedza kana rakabikwa.Kune zvishoma zvishoma zvemvura uye doro tsvina mune glue yakagadzirwa.Kuoma kwakanaka kunogona kuita kuti hunyoro uye humwe hutsvina huri muglue layer huve hutete zvakanyanya sezvinobvira, uye kuderedza kushandiswa kweanorapa mujenya reglue.Kuti uone kuti chinonamira chakaoma panguva yakaoma musanganiswa, teerera kune zvinotevera pfungwa:
(1) Kuomeswa kwemidziyo pachayo, senge kupinza kwemhepo uye kupera simba kwemidziyo, uye kureba kwehovhoni.
(2) Setting yekuomesa tembiricha.
① Kuiswa kwekuomesa tembiricha munzvimbo yekutanga.Iyo ethyl ester yepakati yekuomesa svikiro munzvimbo yekutanga ndiyo yakakwirira, saka tembiricha yekuomesa yenzvimbo yekutanga haigone kuiswa yakakwira zvakanyanya (kazhinji haina kupfuura 65 ° C).Nemhaka yokuti kutonhora kwakanyanyisa, iyo yakanyungudutswa pamusoro peiyo adhesive layer inoputika nekukurumidza uye ganda rinodzivisa kupukunyuka kwemukati wemukati solvent muchikamu chekuomesa chekupedzisira nzvimbo.
②Kuomesa tembiricha gradient kuseta.Kupisa kwevheni kunofanira kuiswa maererano nemutemo wekuwedzera zvishoma nezvishoma mu gradient, chinangwa ndechekukurumidza kupararira uye kuputika kweadhesive layer solvent munzvimbo yekuoma uye nzvimbo yekunhuhwirira yekusabatanidzwa, uye kuderedza kusara kwezvinonyungudutsa mufirimu.
(3) Kugadziriswa kwekutora uye kupera simba remhepo.
①Munzvimbo yekubuda kweiyo yekuomesa, iyo inopinza uye inopedza mweya mavharuvhu evhavha inofanira kuvhurwa kusvika pakakwirira, uye vharafu yemhepo yekudzokera inofanira kuvharwa.
②Munzvimbo yakaoma yakaoma uye nzvimbo yekubvisa kunhuwa, mhepo yekudzoka inogona kuwedzerwa zvakakodzera, iyo inogona kuchengetedza kushandiswa kwesimba.
4. Kufurira kwe ambient tembiricha uye humidity
Iyo yepamusoro-yekushisa uye yakakwirira-humidity mwaka muzhizha inguva yekuwanzoitika kwetsaona dzemhando yezvikamu zviviri zve polyurethane adhesive dry-process composite adhesive layer.Zvinoenderana nefekitori inonamira, 95% yemhando yemhinduro yakagamuchirwa muzhizha haina hukama neadhesive layer.zvine chekuita.Pasi penzvimbo yekushisa kwepamusoro uye hunyoro hwepamusoro, mvura iri mumhepo yakakwira zvakanyanya, uye zviri nyore kupinda mune glue tray kuburikidza nekuvhuvhuta kweacetic acid kuti idye iyo inorapa, kuitira kuti chiyero cheiyo main agent. iyo inonamira uye mumiririri wekurapa haina kuenzana, zvichikonzera kunamira mushure mekuporeswa kwemukomboni.The layer crosslinking uye kurapa haina kukwana, uye delamination uye kuunyana zvinoonekwa kana zvakabikwa mumvura.
Makambani ekurongedza anochinjika asina mamiriro ekudzora tembiricha uye hunyoro hwemusangano anofanirwa kutarisisa kune anotevera mapoinzi muzhizha tembiricha yepamusoro uye mwaka wehunyoro hwepamusoro:
① Nekuona ambient tembiricha uye hunyoro uye tembiricha pamusoro petirayi yepurasitiki uye dhiramu rekunyungudutsa, chiitiko che "dova point" chinogona kudzivirirwa.Kana "dova" richinge raitika, zvinoreva kuti huwandu hwakawanda hwehunyoro mumhepo hunopinda mutirayi yepurasitiki, uye zviri nyore kuti rubber layer iome.
②Mabhegi akabikwa anofanirwa kudzivirira nguva yekunyorova kwemukomboni panguva yegadziriro yekugadzira.
③Iyo ethyl acetate bucket uye glue circulation bucket inoshandiswa kusanganisa inofanira kuvharwa nekuvharwa.Kana semi-yakavharwa tirayi yepurasitiki yakashandiswa, pesvedzero yekunyorova kwezvakatipoteredza inogona kuwedzera kuderedzwa.
5. Maturation process zvinodiwa
General kuchembera mamiriro: tembiricha 50 ~ 55 ℃, 48 maawa.
Uye zvakare, teerera kune kufanana kwekuporeswa kweiyo firimu roll: ① kana tembiricha yakaratidzwa ichienderana netembiricha chaiyo padhuze nefirimu roll (tembiricha chaiyo yekumusoro, pasi, kuruboshwe, nekurudyi mativi efirimu. roll);② kana mhepo iri padyo nemupumburu wefirimu inogona kuwana inoshanda convection;③ kupeta pamusoro Mhedzisiro yetembiricha pakurapa: Pane imwe nzira yekupisa kupisa, ingave mamiriro ekurapa eiyo core composite firimu inosangana nezvinodiwa.(Ichi chinogona kunge chiri chinhu chikuru mukusawirirana kwemhando.)
D. nzira yekugadzira bhegi
Simba rekuvhara kupisa kwebhegi rakabikwa riri nani, uye zvinonyanya kukosha, kunaka kwebatch yose kunodiwa kuti ive yakagadzikana, se: ① hapana chiitiko chekuisa chisimbiso chemunharaunda;② hapana munhu akashata yekuisa chisimbiso chiitiko mubatch yese.
Paunenge uchigadzira mabhegi ekurongedza akabikwa, teerera kune zvinotevera pfungwa:
① Pasi pemamiriro ekuona chisimbiso chitarisiko, isa tembiricha yakakwira zvishoma kuti udzivise chiitiko chekusagadzikana kwekupisa chisimbiso chemhando chinokonzerwa nekutsauka kwehukobvu hwemusanganiswa firimu.
② Panguva yekugadzirwa kwakajairika, kuvharwa kwemupendero kunofanirwa kuve nechokwadi chetatu chinoshanda chekuisa chisimbiso nguva.Kana muchina wakadzimwa wozobatidzwa zvakare, pamusoro pechikamu chave kupisa chakadzvanywa kamwe kana kaviri chinogona kutonhodzwa kana chavhurwa zvakare (yekutanga kupisa kudzvanya kunogona chete kutamba basa rekutanga kupisa), uye nhamba chaiyo yeanoshanda kupisa chisimbiso kaviri chete Naizvozvo, zvinodikanwa zvakare kuseta yakakwirira-yekuvhara-kupisa tembiricha (iyo kupisa-kuvharisa kunogona kuve kwakanaka mushure menguva mbiri dzekupisa-kudzvanya), kuitira kuti udzivise nhamba shoma yekuisa chisimbiso chisina kunaka. chiitiko kana muchina wakadzimwa wobva wabatidzwa.
③Mazhinji emasaga akabikwa kurongedza kwemvura, izvo zvinoda kudonhedza kudonha kwemabhegi ekurongedza.Dzivisa kudzikisira pasi kwechisimbiso-chakavharwa mupendero panguva yekugadzira bhegi, kunyanya mupendero webanga rekuvhara-kupisa harifanirwe kunge rakanyanya kupinza, uye rinofanirwa kucheneswa kana kukwenenzverwa zvakakodzera..
E. Testing zvinodiwa
1. Representativeness yeSampling
① Kana sampuli yekutanga yasimbiswa, huwandu hwesampling imwe inoenderera inofanira kuvhara kureba kwese mapanga ekusimbisa, kuitira kudzivirira zvinobudirira chiitiko chekuisa chisimbiso chisina kukwana uye nekupotsa kuongorora.
②Sampling ndeyekutora sampuli mushure mekunge debugging yakajairika, gadzirisa tembiricha yekuisa chisimbiso, kudzvanywa, uye kumhanya kwemuchina, uye kusimbisazve mushure mekutsiva firimu roll.
2. Kubudirira kwekupisa chisimbiso chekuona simba uye nzira yekutonga
①Iyo nzira chaiyo ndeyekucheka kupisa-yakavharwa mupendero webhegi kuita mutsetse wakatetepa we20-30mm uye kubvarura iyo yakanangana neiyo yekuisa chisimbiso mutsara.
②Panofanira kunge pasina chiitiko chekuti hupamhi hunopfuura 2mm hunogona kubvarurwa mukati meiyo yekuisa chisimbiso.Zvikasadaro, simba rinokwanisa panguva yekuyedzwa pamushini, asi kupisa kwekuvhara chisimbiso hakuna kunyatsobatanidzwa, zvichikonzera kuderera kukuru kwesimba rekuvhara panguva yekubikira uye chiitiko chekutyoka kwebhegi nekuda kwekuvira.Kana bhegi richivharwa kubva pakusangana pakati pezvikamu zviviri zvemukati zvePE pamucheto wekuvhara mushure mekubikirwa mumvura, ndeye dambudziko rekuti kupisa kwekuvhara kumucheto hakuna kusimba.
3. Pfungwa huru dzekuvira bvunzo
(1) Sampling nzira
① Mushure memushini wekuyedza webhegi rekurongedza rakabikwa zvakajairika, inspector achaita zvisina tsarukano uye achiramba achisarudza akati wandei mabhegi kubva mumutsara wega wega mubhegi remuchina wekuyedza (nhamba yemasamples anodiwa kuvhara kureba kwebanga rekuvharira), uye obva atakura. kunze kwekubikira bvunzo mushure mekuvharwa nemvura.
②Paunenge uchienzanisa bhegi rinopfuura rimwe, shandisa mucherechedzo kuti unyatsomaka bhegi uye kuruboshwe nekurudyi nzira kuitira kuti unyatsoona nzvimbo yebanga rekuvhara uko kupisa kuvharwa kusina kusimba.
③ Kana yakajairwa maitiro ekugadzira mamiriro achinja zvakanyanya, sekumhanya kwemuchina, kugadziridza tembiricha, nezvimwe, zvinodikanwa kudzokorora sampuli yekubikira bvunzo.
④ Mushure mekuchinja kwega kwega, sampling inofanira kutorwa yekubikira kuita bvunzo.
⑤Kupatsanura uye kubata neasina kukodzera zvigadzirwa zvinowanikwa mukuita nenguva.
(2) Mamiriro ekuedzwa
①Isa 1/3 kusvika 1/2 huwandu hwemvura mubhegi rekurongedza, uye edza kuburitsa mweya kana wavhara.Kana mhepo yakawandisa yakavharwa, zviri nyore kukonzera kukanganisa.Chivharo chakawedzerwa panguva yekubikira bvunzo kuti zvishoma kuwedzera kudzvanywa mukati mebhegi.
②Nguva yekubikira iri pasi pemamiriro ekushandiswa kwemutengi, kana zvinoenderana neakakodzera kuyedzwa zviyero.
(3) Test qualification standard
① Iko hakuna kuunyana kana chidimbu kukwenya uye delamination pamusoro pebhegi;simba reganda rinoonekwa nekunzwa kweruoko mushure mekuvira.
② Ingi yekudhinda haina kushanduka kana kubuda ropa;
③ Iko hakuna kuvuza uye kuputsika kwebhegi;hapana chiri pachena chinomhanya chinomhanya pamupendero wekuvhara (kumhanya kumucheto kwehupamhi kunodzorwa mukati me2mm).
Nguva yekutumira: May-05-2022