Adhesives for Coating Application
Mazhinji anonamira machira ane tsika-engineered kugadzirisa zvisingaperi zvipingamupinyi zvekushandisa. Rudzi rwekupfekedza uye hunyanzvi zvinonyatsosarudzwa, kazhinji kuburikidza nekuyedza kwakawanda uye kukanganisa, kupa mhedzisiro yakakwana. Vane ruzivo macoaters vanofanira kuzvidavirira kune akasiyana siyana akasiyana uye zvinodiwa nevatengi vasati vasarudza nekuyedza mhinduro. Adhesive coatings akajairika uye anoshandiswa pasi rose mune akawanda mabasa. Vinyl inogona kuputirwa nekumanikidza inonamira inonamatira kuti ishandiswe mumasaini, mifananidzo yemadziro, kana yekushongedza wraps. Gaskets uye "O" -mhete anogona kuve anonamira akavharidzirwa kuitira kuti agone kunamirwa zvachose kune akasiyana zvigadzirwa nemidziyo. Adhesive coatings inoshandiswa kune machira uye zvisiri-yakarukwa zvinhu kuti zvigone kuve laminated kune yakaoma substrates uye inopa yakapfava, inodzivirira, kupedzisa kuchengetedza mitoro panguva yekufambisa.
Zvinyorwa
Pane zvakawanda zvinhu zvinopinda pakusarudza inogoneka yekunamira yekuvhara mhinduro:
Substrates kazhinji zvinhu zvakaita sebepa, madziro anovhara, marara epurasitiki, mafirimu uye foils. Imwe neimwe ine yayo yakasarudzika hunhu senge porosity, tensile simba uye makemikari kuramba.
Release Liners inoiswa kuchengetedza inonamira kubva pakubata uye kusvibiswa isati yaiswa. Liners inogona kugadzirwa kubva kwakasiyana-siyana uye kushanda pamwe chete neadhesive coating kudzora peel simba.
Nzvimbo yekushandisa inogona kunge iri madziro ekongiri, pasi pekapeti, gonhi remotokari, hwindo, ganda remunhu kana zvimwe zvakawanda. Iko kugadzirwa kweaya mapasi kunofanirwa kutariswa pakusarudza / kugadzira iyo chaiyo chemistry.
Mamiriro ezvakatipoteredza senge tembiricha yakanyanyisa, unyoro, zuva rakananga kana kuti risina kunanga, kuratidzwa kumakemikari, kushandiswa kwemukati/kunze kwekunze, nezvimwe zvichave nekukanganisa kunamatira uye kusimba.
Maitirwo eGreen anogona kusarudza kusarudzwa kwemulsion-based (water-based) adhesives pamusoro pesol-vent (chemical-based) adhesives.
Zvimwe zvinhu zvinofanirwa kutariswa kuenderana pakati pekunamira kwekunamira uye inoshanda yepamusoro-jasi, mhando yeprinta / inki iri kuiswa, uye kuchengetedza mamiriro.
Chemistry
Kune akawanda "off-the-sherufu" chemistry sarudzo dziripo pamusika. Dzimwe nguva, makemikari aya anogona kushandiswa pasina kuchinjwa. Muzviitiko zvakawanda, ivo vanogadziridzwa nezvinowedzerwa kuti vawedzere kuita kwavo.
Masurfactants anoderedza kushushikana kwepasi kuti avandudze rheology yekunamatira. Izvi zvinoita kuti chinonamirwa chiyerere zvirinani uye chipfeke zvakaenzana.
Defoamers inogona kuwedzerwa kuderedza kana kubvisa mukana wekuti mabhuru emhepo aitike mukati mekuputira.
Kunhuhwirira kunogona kuwedzerwa kune maapplication uko kunhuhwirira kwekunamatira kunoongororwa. Zvigadzirwa zvekunamira-ku-ganda dzimwe nguva zvinoda kunamira "kunhuhwirira".
nzira
Kune marudzi akawanda emajasi uye nzira dzekupfekedza. Zvinodiwa zvekutanga zvinosanganisira kusarudza jasi rinogona kugarisa saizi uye huremu hwewebhu (mupumburu wezvinhu zvakasvibiswa). Mabhachi eState-of-the-art anowanzo kuve nekumhanya kwepamusoro uye tension control inodiwa kubata akasiyana siyana. Kunyatso tension control kwakakosha kana uchiisa machira kuzvinhu zvitete zvakaita semafirimu nemafoiri. Kusarudzwa kweCoater kunotsamira pane zvakawanda kupfuura kungokwana kwemuviri. Nzira dzakasiyana dzekupfekedza dzinogona kuiswa zvichienderana nemhedzisiro yakatarwa:
Gravure coating inoshandisa masilinda akavezwa anoshandisa huwandu hwakati hwekupotera kuwebhu zvichienderana nevhoriyamu yavo yakavezwa uye hunhu hwemvura yekupfeka. Masilinda akaiswa mameta ane blade yachiremba iyo inoita kuti mushandisi ashandise chaiwo uye anoenderana masimbi ekuputira masimbi pawebhu. Gravure coaters anonyanya kushandiswa kuisa machira matete kuwebhu. Gravure coaters inogona kushandiswa kuzara webhu kubhati kana kupfekedza pateni.
Reverse roll coating inosanganisira pickup roll yakanyudzwa zvishoma mupani yekuputira. Iyo yekuputira fluid inoiswa kune iyo pickup roll iyo, iyo zvakare, inoshandisa iyo chemistry kune iyo applicator roll. Mupumburu weapplicator unoisa mvura yekunamira pawebhu. Huremu hwekuputira hunodzorwa nekumhanya kwe roll uye gap pakati peapplicator roll uye pickup roll. Rondedzero yechitatu, iyo backup roll, inobata webhu kune iyo applicator roll uye zvakare inodzora coating coating. Iyi nzira yekupfekedza ndiyo inonyanya kushandiswa kuisa huremu hwepakati kusvika kune inorema kuwebhu.
Deepmaterial coating inoshandisa ingave yakatemerwa tsvimbo kana ronda tsvimbo kumisa yakawandisa coating iyo yakaiswa pawebhu kuburikidza neapplicator roll kana zvakananga kunze kwepani. Kukura kwemavara akavezwa kana maronda mudonzvo, ndiko kukora kana kurema kwehuremu hwekuputira hunoiswa pawebhu. Rudzi urwu rwekuputira runopa kukwanisa kuita zvakasiyana-siyana zvehuremu hwekuputira uye hunoshanduka zvikuru kana zvasvika kune maitiro ekugadzira makemikari anoshandiswa.
Deepmaterial coating inonyanya kushandiswa kuisa iyo yakatetepa coating kuwebhu. A metered roll inoshandisa coating kuwebhu. Huremu hwejasi hunowanzodzorwa nekumhanya kwemupumburu. Rudzi urwu rwekupfekedza runonyanya kushandiswa kuwedzera hunyoro kumashure muwebhu, kunyanya mapepa, kudzora curl yechigadzirwa chakapedzwa.
MuDeepmaterial coating, dandemutande rine huwandu hwakawandisa hwemvura yekupfeka inoiswa pamusoro. Banga rakanangana nepamusoro pewebhu rine mukaha chaiwo unomisikidza mvura yakawandisa. Iyi gap inodzora uremu hwekuputira. Mune imwe nzira yakafanana inonzi Air Knife coating, panzvimbo yesimbi kana polymer blade, rwizi rwakanangana rwemhepo yakaputirwa inoshandiswa kumisa mvura yakawandisa yekuputira kubva pamusoro pewebhu. Huremu hwejasi hunodzorwa nekugadzirisa kukurumidza kwemhepo yakaputirwa uye chinhambwe chegepu rekupinda kubva pamusoro pewebhu.
Slot Die coating method inopomba mvura yekunamira kuburikidza nemukaha wakanyatsogadzirwa mudhishi uye pamusoro pewebhu. Huremu hwekuputira hunodzorwa nekushandura huwandu hwekuyerera kuburikidza nekufa kana ukobvu hwegomba mudhiya. Iyi nzira yekuputira inoshandiswa kana yakanyatso kupfekedza uremu kudzora uye kuenderana kunodiwa.
Kunyudza kunyudza dzimwe nguva kunonzi "dip coating". Dandemutande rinonyudzwa kana kunyikwa mupani kana dura rine mvura yekukoira. Dandemutande rinobva rapfuudzwa nepakati pemapumburu maviri anoyera mita yakawandisa kubva pawebhu. Huremu hwekuputira hunodzorwa nemukaha uri pakati pemapumburu maviri uye nekumhanya kwekutenderera kwemapumburu. Iyi nzira yekuputira inowanzoshandiswa kana kuzara kwekemikari yekuputira muwebhu kunodiwa.
Curtain coating inoshandisa musoro wakanayiwa wakanyatsosvatwa unogadzira keteni yekemesitiri yekunamira inowira pawebhu ichifamba perpendicular kune inodonha yekudonha fluid. Rudzi urwu rwekupfekedza runoshandiswa kana huremu hwekupfekedza huremu hunodiwa uye hunobatsirawo pakuisa matinji akawanda emvura yekuputira pawebhu. Izvi zvinoitwa nekushandisa akawanda anotsvedza mumusoro mumwe wekuputira, imwe neimwe iine yakaparadzana yekubatisa zvinwiwa zvinoyerera kuburikidza nazvo.
Kupedza
Iye zvino iyo chemistry yakagadziridzwa uye nzira yekubikira yakadanwa mukati, kuomesa ndicho chikamu chinotevera chemaitiro. Macoater mazhinji ane ma-in-line oveni akagadzirirwa kuomesa kana kurapa anonamira. Tembiricha, kumhanya uye kureba kweovheni zvese zvinoverengerwa kana uchigadzirisa maitiro ekuomesa. Infrared heat inoiswa mumahovhoni emhepo anoyangarara chero kuvharika pasina kubata webhu. Rudzi rwe liner, adhesive, humidity uye ambient tembiricha zvese zvine chekuita nekuomesa maitiro. Nguva dzekuomesa uye kumhanya zvinowanzogadziriswa panguva yekuedzwa. Adhesive machira anotanga kuiswa kune liner pane zvakananga kune substrate. Iyi nzira inonzi transfer coating. Kana iyo yekuomesa yapera, iyo substrate inobva yaiswa laminated kune yakanamatira / liner kuti ibudise chigadzirwa chakapedzwa.
Nzira yekugadzira micheka yekunamatira inotanga nemafungiro. Kubva ipapo, dhizaini-ye-kuedza (DoE) inogadzirwa senzira yekubudirira. Kazhinji, miedzo yakawanda inodiwa kuti inatse chemistry uye kushandiswa kweiyo chemistry. Mhedzisiro iyi mhinduro yakanyatsogadzirwa yakagadzirirwa kubudirira.
Deepmaterial inogadzira machira ehunyanzvi ekushandisa muhunyanzvi hwekuita tekinoroji. Masisitimu edu anodzivirira kubva pakunyorova, makemikari, abrasion, kuchovha bhasikoro, tembiricha yakakwira, mechanical shock, zvichingodaro. Anoita 100% reactive uye haana zvinonyungudutsa kana diluent. Ultra low viscosity coatings inowanikwa kune dzakavharirwa nzvimbo.
