Ngwa Ink nchekwa gburugburu dabere na mmiri na nkwakọ ngwaahịa nri egosipụtara

Ngwa Ink nchekwa gburugburu dabere na mmiri na nkwakọ nri nri

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Dị ka ụdị nkwakọ ngwaahịa ọhụrụ na ihe obibi akwụkwọ, nnukwu uru nke ink dabeere na mmiri bụ na ọ nweghị ihe mgbaze organic na-agbanwe agbanwe.Ojiji ya na-ebelata ọnụ ọgụgụ nke ogige organic na-agbanwe agbanwe (VOCs), anaghị emebi ahụike nke ndị na-emepụta ink na ndị na-ebi akwụkwọ, ma na-eme ka ọdịdị gburugburu ebe obibi dịkwuo mma.Ya mere, enwere ike ịkpọ ya ink enyi na gburugburu ebe obibi.Ihe kachasị mara mma nke ink mmiri na-adabere na mmiri abụghị mmetọ na gburugburu ebe obibi, enweghị mmetụta na ahụike mmadụ, enweghị ọkụ ọkụ, yana ezigbo nchekwa.Ọ bụghị naanị na ọ ga-ebelata nsi nke fọdụrụ n'elu ngwaahịa ndị a na-ebipụta, na-eme ka ọ dị mma iji kpochapụ ngwá ọrụ obibi akwụkwọ, ma belata ihe ize ndụ ọkụ nke ọkụ eletrik na-egbuke egbuke na ihe mgbaze ọkụ na-akpata.Na mgbakwunye na nchedo gburugburu ebe obibi, njirimara mbipụta nke ink dabeere na mmiri dịkwa mma.Ink nke dabeere na mmiri nwere arụmọrụ kwụsiri ike, anaghị emebi efere ahụ, ọrụ dị mfe, ọnụ ala dị ala, ezigbo adhesion mgbe e bipụtachara, mmiri na-eguzogide mmiri na ihicha ngwa ngwa.A na-eji ink dabere na mmiri naanị na mbipụta flexographic na mbipụta ihuenyo nwere nnukwu ikike mmepe.

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Atụmanya mmepe na usoro nke ink nke mmiri

A na-akpọ ink nke dabeere na mmiri maka nkenke.A na-akpọkwa ink mmiri nke flexographic nke mmiri mmiri.A na-eme ya nke ọma na resin mmiri na-agbaze, pigmenti organic pigmenti, ihe mgbaze na ihe ndị yiri ya site na igwe nri.Aqueous resin bụ ụdị resin ọhụrụ nke na-eji mmiri kama ihe mgbaze organic dị ka mgbasa ozi.A na-ejikọta ya na mmiri iji mepụta ngwọta.Mgbe mmiri ahụ kwụsịrị, a na-emepụta ihe nkiri resin.Mmiri mmiri na-adabere na mmiri abụghị resin nke mmiri n'onwe ya kama ihe nkiri a na-enweta mgbe mmiri gbanwere.Mmiri polyurethane, dị ka onye nnọchiteanya, nwere ike iji ya mee ihe n'ọtụtụ ebe na mkpuchi, adhesives, akwa mkpuchi na ihe ndị na-emecha, akpụkpọ anụ na-emecha akpụkpọ anụ, ndị na-ahụ maka ọgwụgwọ akwụkwọ na eriri elu.Ink dabeere na mmiri dị mma maka nri, ihe ọṅụṅụ, ọgwụ, ụtaba, mmanya, ihe ụmụaka ji egwuri egwu na nkwakọ ngwaahịa ndị ọzọ na-ebi akwụkwọ na-achọsi ike ịdị ọcha chọrọ, na-edochi ngwaahịa ndị na-agbaze na mpaghara dị iche iche.Dị ka otu n'ime ihe ise nke mbipụta, ink dabeere na mmiri na-ekere òkè dị mkpa na usoro obibi akwụkwọ na àgwà mbipụta.Oke ezi uche dị na ink bụ njikọ dị mkpa iji hụ na ngwaahịa ndị e biri ebi dị mma.Ink dabeere na mmiri anọwo na-ekere òkè dị ukwuu na mbipụta flexographic n'ihi uru ya nke nchebe gburugburu ebe obibi na akụ na ụba.
Mmepe siri ike nke ụlọ ọrụ mbipụta akwụkwọ ndụ akwụkwọ ndụ ga-eme ka asọmpi ahụ dịkwuo elu n'ahịa ink mbipụta akwụ ụgwọ.Ugbu a, ndị na-emepụta ink ezigawo ihe mgbaàmà na ọnụ ahịa nke ink akụrụngwa amụbawo nke ọma, nke ga-eme ka ọnụ ahịa mmepụta na nhazi dị mma.Nke a bụ n'ihi ụkọ kemịkalụ zuru ụwa ọnụ, nke bụ isi akụrụngwa na mmepụta ink.Ka ọ dị ugbu a, ọnụ ahịa mmanụ crude na ihe ndị sitere na petrochemical bụ isi ihe kpatara ịrị elu ọnụ ahịa ink.Agbanyeghị, ọ bụrụgodị na ọnụ ahịa mmanụ daa, n'ihi na ụkọ kemịkalụ akụrụngwa na-emetụta ụlọ ọrụ ink, ọkachasị akụrụngwa dị ka nitrocellulose, acrylic acid, acetic acid na titanium dioxide, ọnụ ahịa ink ka ga-ebili naanị.Ka ọ dị ugbu a, mba na mpaghara mepere emepe na-agbalị ịmalite ma jiri ink jiri nwayọọ nwayọọ dochie ink dabere na ihe mgbaze.Nkwakọ ngwaahịa eji ebi akwụkwọ ink dabeere na mmiri dị ka isi ihe mmepe etolitela na-emekarị n'ụwa.

Njirimara nhazi nke ink dabeere na mmiri: Ọdịiche dị n'etiti onye nnọchi anya na ink dabere na mmanụ.

Ogo nke polyurethane maka ink na-ejikarị aliphatic polyester na aliphatic isocyanate dị ka isi ihe sịntetik na usoro nkwadebe.E jiri ya tụnyere polyurethane aromatic, nke mbụ nwere nkwụsi ike anya kachasị mma na ihe nkiri mgbe emechara ihe nkiri nwere nguzogide na-acha odo odo ka mma.Enwere otu polar dị ka carbamate, urethane, ester bond na ether bond na polyurethane molecular yinye akụkụ maka ink, nke na-etolite njikọ hydrogen na polar dị iche iche n'elu ihe dị iche iche pola dị ka anụ ụlọ na PA, si otú a na-emekọ ọnụ. ụfọdụ ike njikọ.Mgbe emechara resin polyurethane gbanwetụrụ ka ọ bụrụ ink, enwere ike ibipụta ya n'elu mkpụrụ rọba pola na ezigbo nrapado.A na-akwadokarị resin polyurethane maka ink site na polyester ma ọ bụ polyether polyol, ester ring diisocyanate na diamine chain extender.N'ihi ntinye nke njikọ urea na resin polyurethane, a na-emepụta polyurethane urea resin (PUU), nke nwere ezigbo wetting na dispersing properties na pigmenti.
Polyurethane resin maka ink nwere ezigbo ndakọrịta na aldehyde ketone resin, chloroacetic resin, wdg enwere ike ịgbakwunye ya nke ọma na usoro usoro dịka ọnọdụ dị adị iji melite arụmọrụ zuru oke nke ink.A na-akwado resin polyurethane maka ink site na iwebata otu urea n'ime akụkụ molecular polyurethane ọdịnala, nke na-eme ka ike njikọ dị ukwuu na ihe nkiri na-emepụta ihe nke resin n'onwe ya.Omenala resin polyurethane nwere ọtụtụ miscibility na ihe mgbaze organic.Otú ọ dị, na usoro nke ịkwadebe ink, iji dozie fluidity na viscosity nke ink, ọ dị mkpa ịgbakwunye mmanya organic solvents, nke ga-ebelata nke ukwuu nkwụsi ike nke resin usoro na-akpata turbidity, flocculent ọdịda na ndị ọzọ phenomena maka omenala. polyurethane resin.N'ime agbụ molekụla nke polyurethane resin maka ibipụta ink, n'ihi ọnụnọ nke otu urea, enwere ike igbari resin polyurethane na mmanya.Otú ọ dị, ekwesịrị iburu n'uche na mmanya na-aba n'anya ka bụ ihe mgbaze pseudo.N'ebe a na-ahụ anya, ihe mgbaze mmanya na-ekpuchi naanị polyurethane resin molecule, kama ịbanye n'ime polarity molecular n'ime molekul dị ka ezigbo ihe mgbaze, nke mere na ink a kwadebere na resin polyurethane nwere ezigbo mmiri.
Isi ihe dị iche n'etiti ink dabeere na mmiri na ink mmanụ bụ ihe mgbaze.Ink dabeere na mmiri na-eji mmiri (45% - 50%) dị ka ihe mgbaze, nke nwere ọdịnaya VOC dị ala na obere mmetọ gburugburu ebe obibi;Ink mmanu mmanu na-eji ihe mgbaze organic (toluene, xylene, mmanya ụlọ ọrụ mmepụta ihe, wdg) dị ka ihe mgbaze.Ink dabeere na mmiri na-eji mmiri na mmiri na-agbaze mmiri dị ka ihe ndị bụ isi nke isi agba agbaze agbaze;A na-enwekwa ink e ji esiji ákwà na ink pigment n'ime ink dabeere na mmiri, na pH na-anọpụ iche n'ozuzu;Mmanụ nwekwara ink agba na ink pigmenti, pH na-abụkarị acidic.Enweghị ike ịgwakọta ink dabere na mmiri na ink mmanụ n'otu isi mbipụta.
N'ime ink dabeere na mmiri, resin dabeere na mmiri bụ ihe dị mkpa nke ink dabeere na mmiri.Ngwa njikọ ink na-emetụta ozugbo arụmọrụ adhesion, ọsọ ihicha, arụrụ arụ arụrụ arụ na nguzogide okpomọkụ nke ink, ma na-emetụtakwa gloss na ink arụmọrụ.Ya mere, nhọrọ nke resin mmiri kwesịrị ekwesị bụ isi ihe maka nkwadebe nke ink dabeere na mmiri.Ọ ga-enwerịrị mmekọrịta dị mma na ndị na-agba agba, ngwa ngwa adhesion dị elu mgbe e bipụtachara na imepụta ihe nkiri, na-eyi nguzogide, nguzogide ọkọchị, ezigbo ọkụ na-eguzogide, mfe crosslinking na mmepụta ihe nkiri.Resin mmiri a na-ejikarị gụnyere resin polyurethane mmiri, resin acrylic, mmanya polyvinyl na resin epoxy.
A na-agbasasị resin polyurethane nke mmiri na-agbanye n'ime mmiri site n'iwebata ìgwè hydrophilic n'ime eriri molecular polyurethane.Mmiri polyurethane resin nwere uru nke iji dị mfe, arụmọrụ kwụsiri ike, adhesion siri ike, nnukwu gloss na ezigbo nkwụsị ọkụ.Ọ nwere ike ịdị mma maka ụzọ mbipụta dị iche iche, karịsịa maka mbipụta ihuenyo, igbe nkwakọba plastik na ihe nkiri mejupụtara.