Lignée coating extrusion yi dundu wala dee ci benn nimero: dooley xolli gi diggante polymer biy seey ak substrat bi. Extrusion coating adhésion defay dogal ci ay segond yu néew diggante gaaraasu traitement bi ak nip bi, te benn xeetu tuning bu wàcci mënul muccal web bi dugg ci matris bi ak energie surface bu jaarul yoon. Gid bii dafay wax ci jekkal pajum, doxalinu substrat ak variable ligne yiy joxe ci anam wu wóor, lëkkaloo yu dëgër, yuñ mëna baamtu ci coating extrusion, lamination extrusion ak ligne tandem.
Lu waral couche extrusion nekk jafe-jafe energie ci kaw suuf
Polyethylene buy seey dafay bàyyi matris bi ci 300 degre ba noppi yegg ci nip bi ci diir bu gàtt wala ñaari seconde. Ci palanteer boobu dafa wara tooyal substrat bi bamu jeex ba noppi sos ñaareelu lëkkaloo ci biir interface bi. Tooy dafay am sudee energie surfaasu substrat bi dafa weesu tension surfaasu melt bi, maanaam ci LDPE mingi tollu ci 31 dynes ci centimetre bu nekk, ci copolymers yu melni EAA mën na gëna néew.
Filmu polyolefin buñu raxasul mingi toog ci 29 ba 31 dynes, ci ndeyjoor ci peggu bi. Loolu moo waral coating extrusion bi mënul nekk ci stock buñu raxasul, moo tax pajum corona bi dafay nekk standard ci bépp ligne coating extrusion. Pajum dafay yéeg surface bi ba 38 ba 42 dynes, te li gëna am solo mooy dugal ay grupu fonctionel polar yuy forme lëkkaloo chimik yu dëggu ak melt bi, te baña yam ci lëkkaloo van der Waals kese.
Li muy tekki ci praktis mooy mënoo àtte waajal ci niveau dyne kese. Surface bu am 40 dynes ndax contamination -y ñaq, wuute na ak surface bu am 40 dynes ndax oxidation dëgg. Freshness dafa am solo: surface yiñ faj dañuy màgget, te extrusion coating adhésion dafay wàññeeku bu baax su gap bi am ci digganté faj ak nip weesee ay segond yu néew, rawatina ci bis yu tàng, yu am ndox.
Réglage de puissance corona pour l'extrusion
Densité watt mooy variable biy saytu, ñu koy joxe ci watt ci centimetre kaare bu nekk ci simili bu nekk ci kaw suuf siñ toppatoo. Ngir laxasu polyolefin ci kaw film wala aluminium, bande de départ bu 6 ba 12 W/cm2/min mooy muur ligne yi gëna bari ci liggéey bi.
Xaymal ko ci saasi: densité watt mingi méngoo ak doole jiñ jëfandikoo yépp xaaj ko ak produit u yaatuwaayu web bi ak gaawaayu liiñ bi. Ligne bu am yaatuwaayu 1.6 m buy daw ci 200 m/min di jëfandikoo 20 kW dafay joxe lu tollu ci 6.3 W/cm2/min. Ñaari yoon gaawaay bi ci yaatuwaayu fippu te danga wara yokk doole ñaari yoon ngir tëye benn niveau de traitement.
Ñaari fiir dañuy jàpp operatër yi lu bari yoon. Bi njëkk mooy, yokk doole bi weesu poñ biy wàññi dellu yi dafay lakk kaw gi, defar ay mbalit yu woyof ci molecule yi, ba noppi dafay néewal doole extrusion coating adhésion bi ci bàyyi benn couche boundary bu néew doole. Ñaareel ba mooy, soo defee kuuraŋ bu néew lool ngir sakkanal kuuraŋ, loolu dafay defar surface buy saytu bu baax ci saasi waaye ginaaw bu màgget dafay yàqu.
Tune ci natt dooley xolli, te baña topp nimero dyne. Yokk doole ci 10 pursaa jéego ba xolli doole plateau, ba noppi dellu ci parametre bi gëna suufe biy joxe marge bu baax. Loolu mooy sa poñ defar.
méngoo ak paj mi ak substrat bi
Bépp substrat dafay doxalee ci anam wu wuute, te jekkal yiy dox ci benn ci ñoom dina ñu lajj ci beneen.
Filmu LDPE ak LLDPE.Cas bu yàgg bi. Dafay laaj nga faj ko ba 38 ba 42 dynes. Saytu ci ginaaw filmu yi ci suufu 25 microns, luy waral blokeer ci unwind.
BOPP.Kristalinite bu gëna rëy dafay tekki ni paj mi dafay gëna jege kaw suuf si te dafay gëna màgget ndànk. ba 40 dynes mën nañu doy, waaye extrusion coating adhésion dafay sensible ci additif yiy dem ci kaw surface bi ba noppi di tere bonding bi.
RABU KËR.Dafay tàmbali ci diggante 41 dynes te fajuwul, te soxlawul ludul paas bu woyof ngir yegg ci 45 ba 48. Faj lu ëpp - risk la ndax kaw gi mën na nekk poudre.
aluminium aluminium.Conductif, moo tax decharge bi dafay doxalee ci anam wu wuute te muur bi dafa wara mëna dékku sarge thermique bu gëna rëy. Couche oxide yi ci kaw foil bi dañuy méngoo ci wàllu chimie ak groupe polar yi, moo tax extrusion coating adhésion ci foil bi dafay faral di baax sudee paj mi jaar na yoon.
Këyit ak tablo.porous ak sensible ci guus. Defal 40 ba 44 dynes, nga tëye densité watt bi ci yam, nga saytu guus gi, ndax vapër ndox mi ci bërëb bi dafay tere decharge bi.
Substrat yuñ raxas ak yuñ metalisé.Ñoom dañu soxla paj mu gëna woyof, ñu saytu leen bu baax ndax couche fonctionnelle bi dafa sew. Wàññi li ñuy liggéey wala masin buy raxas plasma atmosphere buñu kontre mooy tontu bi gëna baax moo gën corona bu diis.
Variables ligne yiy soppi adhésion couche extrusion
Pajum benn dugal la. Barina ligne variable yuy soppi resultaa bi te dañu leen wara boole jëfandikoo.
Diggante pajum ak nip.Lii mooy variable biñ gëna suufeel. Fexeel ba yoon wi gëna gàtt ci anam wu mekanik. Segond bu nekk buñu yokk ci exposition dafay njëg groupe polar yi ndax dañuy soppi seen bopp ci bulk bi.
Tàngooru web bi.Pajum bi dafay gëna am njariñ ci web bu tàng, te adhésion dafay gëna am njariñ ci substrat bu tàng ci nip bi. Waaye, tàngoor wu ëpp dafay dàq kuréel yiy sooga sos.
Ozone ak génne ko.Ozone produit la buy bawoo ci pajum, du pajum ci boppam, waaye dafay yàq itam. Extraction bu doy dafay aar aparey bi ba noppi di tëye gap bi ci atmosphere bi, loolu mooy tax extrusion coating bi gëna dëgër.
Nip pressure ak dëkk.Pression bu gëna rëy mooy tax melt bi nekk micro{0}}porosité ci kaw suuf si, ba noppi gëna yombal caabi mekanik yi. Loolu dafay mottali lëkkaloo chimik bi ci paj mi moo gën ko wecci.
Die ak gap air.Oxidation bu melt bi ci gap air bi dafay defar ay groupe polar ci wàllu polymer bi. Air gap bu gëna gudd dafay yokk oxidation melt bi te mën na kompensaasioŋ substrat bu néew doole bi - waaye mën na indi itam risku instabilite ci catu boor bi ak ci baat bi.
Fini roll bu sedd.Rouleau chill matt dafay joxe ñaq ci kaw surface coating bi, te loolu du indi lenn luy indi jafe-jafe ci dëgëraay bi waaye dafay indi jafe-jafe ci imprime bi ak ci performance lamination bi.
| Substrat | Dyne target | Densité watt (W/cm2/min) | Risk bu mag |
|---|---|---|---|
| Filmu LDPE | 38–42 | 6–10 | Pajum ginaaw |
| Filmu LLDPE | 38–42 | 8–12 | Màgget balaa nip |
| BOPP | 38–40 | 5–8 | Migraasioŋ buy yokk |
| RABU KËR | 45–48 | 3–6 | -pajum lu ëpp, poudre |
| aluminium aluminium | 42–46 | 6–12 | sargu termik bu rulo |
| këyit / tablo | 40–44 | 4–8 | Niir ci bërëb bi |
| Film metalisé | 44–50 | 3–5 | Yaxxum couche de métal |
Natt ak saytu adhésion couche extrusion
Danga wara am ñaari sistemu natt: benn ngir surface bi, beneen ngir liiñ bi.
Ngir kaw gi, bik dyne wala encre test dañuy joxe dem/no- dem bu gaaw. Jëfandikool leen ci digg bi ak ci ñaari catu paj mi, ci saasi ginaaw bi nga fajee ba noppi nga jëfandikoowaat ko balaa nip sudee yoon wi gudd na. Bindal valeur yi; tendaas buy dem daf lay wax ni electrode bi wala dielectric bi soxla nañu ko bàyyi xel.
Ngir lëkkaloo, jëfandikoo test peel T- ci kaw echantillon bu wér. Ginaaw ñu defee extrusion coating, adhésion baa ngi gëna am solo, kon test bi ñu def ci ligne bi dafay gëna yokk wala di suufeel valeur bu mujj bi aju ci polymer bi. Li ñuy faral di def mooy ñu conditioner échantillon yi 24 waxtu laata ñuy saytu.
Toppal dooley xob bi ak poñ yiñ tëral ci benn log bu yomb. Sudee extrusion coating adhésion drifts, log bi daf lay wax ndax pajum, substrat lot wala gaawaayu liiñ bi soppeeku, te loolu dafay wàññi diiru diagnostic bi bu baax.
Jumtukaay yu bari yiy yàq adhésion coating extrusion
- Faj fu sori lool ci kaw.Yoon wu gudd diggante treater bi ak matris bi dafay tax surface bi bàyyeeku. Toxal gaaraas bi gëna jege wala nga yokk densité watt bi ngir kompensaasioŋ, waaye bul nangu rek ñàkk gi.
- Pajum lu ëpp-.Dooley cranking ngir "am kaaraange" dafay defar ab couche bu néew doole ci mbalit mi oxidé ba noppi wàññi adhésion coating extrusion. Lu ëpp gënul.
- Test bi ci diggu web bi kese la.Taxawam ci catu boor bi dafay njëkka ñàkk ba noppi wane wear electrode wala dielectric.
- Bayyi xel ci niir.Humidité bu bari ci biir dafay tere decharge bi ba noppi dugal ndox ci bërëb bi. Set -poñ yi ci jamono lu jaadu la ci garabi tropikaal yi.
- Jëfandikoo muur rulo bu jaarul yoon.Rulo buñu muur ci silicone buy daw ci densité watt bu rëy dafay defar ay raay yuy yóbbu yoon wi te dafay joxe paj mu tolloowul, moo tax extrusion coating adhésion dafay wuute ci yaatuwaayam.
- Du xool royuwaay biñ fajwul.Deel faral di denc benn misaalu substrat bu amul benn paj ngir firndeel ni pajkat bi mooy def liggéey bi.
laaj ak tontu
Q1: Ban niveau dyne laa soxla ngir extrusion couche adhésion bu baax?
Ngir substrat polyolefin, fexeel am 38 ba 42 dynes ci santimet bu nekk ci pointu nip bi, te bañ ci gennukaayu treater bi. Ngir PET ak foil, 45 dynes mooy target bi gëna neex. Deel firndeel saa yu nekk ak test peel, ndax niveau dyne proxy la, du mébet bi.
Q2: Ndax mën naa am couche extrusion bu dëgër te duma faj corona?
Du ci substrat yu am chimie polar, lu ci melni këyit yuñ laxas wala film yuñ njëkka amal. Ci kaw polyolefin yiñ defaruwul, surface yiñu raxasul mënu ñu tooy bu baax ci melt bi, te adhésion bi dina ñàkk ci bepp stress mekanik wala thermique.
Q3: Ban gaawaay la paj mi di yàqu balaa ñuy extrusion coating?
Yaxxum mingi aju ci tàngoor wi, niir gi ak suuf si. Sudee ci anam wu sedd, waw, lënd buñ raxas mën na tëye li ëpp ci nivo dyne bi ay fan. Ci kaw ligne coating extrusion bu tàng, bu xawa tooy, perte bi ci diir bu gàtt ci tukki mën na nekk dynes yu bari, kon defal yoon wiñ faj lu gàtt.
Q4: Ndax gaawaayu ligne bu gëna rëy dina gaañ coating extrusion bi?
Du sudee densité watt bi dafay wéy. Gaawaay dafay wàññi diiru dëkkuwaay bi ci decharge bi, kon danga wara yokk doole bi ci anam wu méngoo. Fàww treater bi nekk ci plafond bu am doole, gaawaay mooy nekk constraint binding te danga wara wàññi wala nga nangu traitement bu gëna ndaw.
Q5: Lu tax extrusion coating adhésion wuute ci rulo bu nekk?
Sabab yi ci gëna bari mooy coppite ci lot substrat, coppite ci anti-blok wala charge additif buy gliise, derivation ci gap electrode, wear dielectric, ak humidité ambiante. Resultaa yiñ jëlee ci peelu log bi méngoo ak nimero lot substrat bi ngir xàjjale source bi.
Q6: Ndax ozone mën na gaañ coating extrusion?
Ozone ci boppam du lor lëkkaloo bi, waaye ozone buñu baña saytu dafay wane génne gu jaarul yoon, loolu dafay soppi gap atmosphere bi, moo tax decharge bi. Ozone bu yéeg dafay yàq pàcci wen yi ci wetam ba noppi di màggetloo kawsu biy muur.
Q7: Ndax dama wara faj ñaari wetu substrat bi?
Faj wàll wi am coating bi. Faj ñaari wetu yenn saa yi dañu koy jëfandikoo ngir saytu curl wala ngir waajal kanam gi ci ginaaw ngir liggéey bu ci topp, waaye dafay yokk ñaari yoon sargu tàngoor bi ba noppi yokk risku blokeer ci unwind.
Tëjteel
Extrusion coating adhésion résultat la, du ab moomeelu matériel, te jekkal pajum mooy levier bi gëna mag bi ngay doxal. Defar watt densité ci substrat bi ak gaawaayu liiñ bi, xool ak test peel ci misaal yiñ kondisione, tëye yoon wiñ faj mu gàtt, ak log resultaa yi suko defee ñu teela gis derivation bi.
Xarala yu bees yu Shenzhen Hefeng Jiada mooy joxe ay pajum corona, masin pajum plasma ak jumtukaayi raxas web yuñ defaree ligne extrusion ak lamination. Séddoo leen seen substrat, yaatuwaayu liiñ bi, gaawaay bi ak dooley xolli bi nga bëgga am, sunuy ingénieur dina ñu xayma dayo station de traitement bi ba noppi di leen xelal ci jekkal yiy tëye extrusion coating adhésion run ginaaw daw.