Ịchọgharị Mmepe Inks Na-adabere na Mmiri na Ọmụmụ nke Eco-Friendly Water-based Polyurethane Inks.

Mmetọ ikuku kemgbe bụ nnukwu ihe na-echegbu, yana ikuku na-egbu egbu dị ka VOC bụ ndị na-enye aka dị ukwuu n'akụkụ ihe okike dị ka oke ifufe. Ka mmata maka nchekwa gburugburu ebe obibi na-eto ma na-emejuputa atumatu mba dị iche iche, ụlọ ọrụ na-ebi akwụkwọ, onye bụ isi VOC emitter, echewo mgbanwe a na-apụghị izere ezere. N'ihi ya, ink obibi akwụkwọ enyi na enyi aghọọla ebe bụ isi na nyocha ụlọ ọrụ obibi akwụkwọ zuru ụwa ọnụ. N'ime ink enyi na enyi dị na gburugburu ebe obibi, gụnyere ink dabeere na mmiri, ink ndị nwere ike ịgwọ ọrịa, na ink ndị dabeere na mmanụ nri, ink ndị dabeere na mmiri bụ ndị a na-ejikarị eme ihe. Ink ndị dabeere na mmiri nwere ntakịrị ihe mgbaze organic, na-ebelata ikuku VOC yana kwekọọ na ụkpụrụ nchedo gburugburu ebe obibi. Otú ọ dị, inks nke mmiri na-enwekwa ihe ndọghachi azụ dị ka oge ihicha ngwa ngwa na oge ọgwụgwọ na mmiri na-adịghị mma na nguzogide alkali, na-amachi ngwa ha na inks ụlọ ọrụ omenala. Ya mere, imeziwanye adịghị ike ndị a site na ngbanwe resin aghọwo ihe a na-elekwasị anya. Akwụkwọ a na-akọwapụta mmepe na ntinye nke inks dabeere na mmiri, ọmụmụ nke mgbanwe resin, ọganihu n'ime nchọpụta na-ebipụta inks site na iji polyurethane nke mmiri, na atụmanya ọdịnihu na mpaghara a.

• Nnwale

1. Mmepe nke Ink dabeere na mmiri

Ink nwere ogologo akụkọ ihe mere eme, na-apụta n'akụkụ mmepụta nke mbipụta. Mgbe iwebata Lithol Red Pigment na 1900, inks ghọrọ ebe niile, na-akpali mba itinye ego na nyocha ink. Ink dabeere na mmiri bụ ihe esite na ya na-achọsi ike maka ịdị irè ink. Nchọpụta maka inks mmiri malitere na mba ofesi n'afọ ndị 1960, nke bụ isi iji mee ka ọnụego obibi akwụkwọ dị ngwa ma belata ịdabere na akụrụngwa sitere na mmanụ ala. Ink ndị a na-eji ogige organic dị ka benzene na shellac ma ọ bụ sodium lignosulfonate dị ka isi ihe iji gboo mkpa obibi akwụkwọ n'oge ahụ. N'afọ ndị 1970, ndị nchọpụta mepụtara resin polymer emulsion nke nwere isi-shell na netwọk netwọk site na polymerizing acrylic monomers na styrene, na-ejigide inks 'gloss na mmiri na-eguzogide mgbe ọ na-ezute ihe ndị chọrọ gburugburu ebe obibi. Agbanyeghị, ka mmata gburugburu ebe obibi na-abawanye yana ewepụtara iwu gburugburu ebe obibi siri ike, oke nke organic nke dabere na benzene na ink belatara. Ka ọ na-erule n'afọ 1980, mba ndị dị n'Ebe Ọdịda Anyanwụ Europe webatara echiche na teknụzụ nke "mbibi ink akwụkwọ ndụ akwụkwọ ndụ" na "ebi akwụkwọ ink ọhụrụ sitere na mmiri."

Ụlọ ọrụ ink nke China malitere n'ọgwụgwụ usoro eze Qing site na mmepụta ego, na-adabere na ink ndị a na-ebubata ruo 1975, mgbe Tianjin Ink Factory na Gangu Ink Factory mepụtara ma mepụta ink gravure mbụ nke ụlọ. Ka ọ na-erule n'afọ ndị 1990, China ebubatala ahịrị mmepụta ihe karịrị 100 flexo, na-aga n'ihu ngwa ngwa iji inks dabere na mmiri. Na 2003, China Industrial Technology Research Institute gara nke ọma mepụtara ngwaahịa ndị metụtara ya, na n'oge 2004, Shanghai Meide Company mepụtara ink zuru ezu nke mmiri na-ekpo ọkụ, na-ekpo ọkụ ọkụ na-ezute ụkpụrụ Japanese na German. Ọ bụ ezie na nyocha nke China na ink mmiri na-ahụ maka mmepe ngwa ngwa na mmalite narị afọ nke 21st, mba ndị dị n'Ebe Ọdịda Anyanwụ enweela ọganihu dị ukwuu: ihe dị ka 95% nke ngwaahịa flexo na 80% nke ngwaahịa gravure na United States na-eji inks mmiri, ebe UK. na Japan nakweere ink dabeere na mmiri maka nri na nkwakọ ọgwụ. N'otu aka ahụ, mmepe China ji nwayọ nwayọ.

Iji kwalite ahịa ahụ, China webatara ọkọlọtọ ink nke mbụ dabere na mmiri na May 2007 na na 2011 kwadoro maka "mmepe ihe ọhụrụ na-acha akwụkwọ ndụ akwụkwọ ndụ," na-achọ iji inks dabeere na mmiri dochie ihe mgbaze. N'ime afọ 2016 "atụmatụ afọ ise nke 13" maka ụlọ ọrụ obibi akwụkwọ, "nyocha ihe gbasara mmiri gburugburu ebe obibi" na "mbibi akwụkwọ ndụ akwụkwọ ndụ" bụ isi ihe na-elekwasị anya. Ka ọ na-erule afọ 2020, nkwalite mba nke akwụkwọ ndụ akwụkwọ ndụ na mbipụta dijitalụ gbasaara ahịa ink dabere na mmiri.

2. Ngwa Ink dabeere na mmiri

Na mmalite narị afọ nke 20, United States na-etinye inks dabeere na mmiri na mbụ n'ime mbipụta flexo. Ka ọ na-erule n'afọ ndị 1970, a na-eji ink gravure mmiri dị elu mee ihe n'ọtụtụ ebe maka akwụkwọ nkwakọba ihe dị iche iche, akwa akwa akwụkwọ, na kaadiboodu. N'afọ ndị 1980, a na-emepụta inks mmiri na-egbuke egbuke na matte na mba ọzọ, na-agbasa ngwa ha na akwa, akwụkwọ, PVC, polystyrene, foil aluminum, na ọla. Ugbu a, n'ihi njirimara gburugburu ebe obibi, ndị na-adịghị egbu egbu, na nke dị nchebe, a na-eji ink ndị dabeere na mmiri eme ihe na-ebipụta akwụkwọ nri, dị ka nkwakọ ụtaba na karama ihe ọṅụṅụ. Ka iwu gburugburu ebe obibi na-akawanye mma, ntinye nke inks dabeere na mmiri na-aga n'ihu na-agbanwe ma na-esiwanye ike. China jikwa nke nta nke nta na-akwalite ojiji ha na ụlọ ọrụ obibi akwụkwọ.

• Nsonazụ na mkparịta ụka

1. Nchọpụta maka Mgbanwe Resin

Ọdịiche resin na-emetụta arụmọrụ ink. N'ozuzu, resin ink dabeere na mmiri na-abụkarị polyurethane, emulsion acrylic gbanwetụrụ, ma ọ bụ resin polyacrylic. A na-eji resins polyurethane (WPU) dabere na mmiri, nke nwere gloss dị elu, n'ọtụtụ ebe na mbipụta nkwakọ ngwaahịa. Ya mere, ịkwalite arụmọrụ WPU iji kwalite ịdị mma gburugburu ebe obibi ink dabeere na mmiri aghọwo ihe a na-elekwasị anya na ụlọ ọrụ obibi akwụkwọ.

2. Na-agbanwe Polyurethane dabere na mmiri

Polyurethanes dabeere na mmiri, nke nwere polyols dị obere ihe mejupụtara, nwere ike ekewa n'ime polyester, polyether, na ụdị ngwakọ. Dabere na ihe dị iche iche nke polyester na polyether polymers, ike na nkwụsi ike ha dịgasị iche. N'ozuzu, polyether polyurethane nwere ike na nkwụsi ike dị ala karịa polyester polyurethanes ma na-egosipụta nguzogide dị elu dị elu ma na-adịkarị mfe na hydrolysis. Dịka ọmụmaatụ, ịbawanye "nkwụsi ike" ink site na iji polyethylene glycol monomethyl ether na-eme ka njirimara ndidi ya dịkwuo mma. Agbanyeghị, nke a bụ naanị ebe ntụnye aka. Ụlọ ọrụ nyocha dị iche iche na-ewere ụzọ dị iche iche iji kwalite akụkụ ụfọdụ nke WPU.

Dịka ọmụmaatụ, n'afọ 2010, ahọpụtara resins epoxy nwere ike siri ike na ike mmetụta iji lebara viscosity ink na nsogbu nrapado anya, si otú ahụ na-akwalite ike ink. Na 2006, otu nnyocha nke Beijing Chemical University bipụtara na-eji ethylene glycol dabeere polyurethane na-emepụta a pụrụ iche resin na ogologo adụ akụkụ, na-eme ka ink mgbanwe mgbanwe na-apụtachaghị ìhè na-ewusi mmiri dabeere ink. Otu ụfọdụ na-enweta nsonaazụ mgbanwe site na ịgbakwunye ihe kemịkalụ: itinye silica ma ọ bụ organosilicon iji kwalite WPU, na-ebute ike tensile ink na-abawanye. A na-eji butadiene nitrile polyurethane nke Carboxyl kwụsịrị iji melite arụmọrụ ịgbado ink na viscosity, na-eme mgbanwe na gburugburu ebe mgbagwoju anya.

Ya mere, ndị na-eme nchọpụta na-ahọrọ polyesters kpọmkwem dabere na ihe ink, na-eji polyacids na polyols kwesịrị ekwesị iji mepụta polyester polyester na-ekpo ọkụ na-ekpo ọkụ, na-ewebata ìgwè ndị polar na-ejikọta ike siri ike, na-ahọrọ ihe ndị kwesịrị ekwesị iji meziwanye kristal polyurethane, na iji ihe jikọrọ ọnụ iji welie WPU adhesive's. mmiri na-eguzogide okpomọkụ.

3. Mgbanwe Mgbochi Mmiri

Ebe ọ bụ na a na-ejikarị ink eme ihe maka nkwakọ ngwaahịa dị n'èzí ma na-akpọtụrụ mmiri ugboro ugboro, mmiri na-eguzogide mmiri na-adịghị mma nwere ike ime ka ike gwụ, gloss, na ọbụna ink peeling ma ọ bụ mmebi, na-emetụta ọrụ nchekwa nke ukwuu. Ịkwalite nkwụsi ike mmiri WPU na-eme ka ọrụ nchekwa ink dịkwuo mma site na iji polyols nwere ezigbo mmiri na-eguzogide dị ka ihe. Dịka ọmụmaatụ, iji acrylic monomers gbanwee WPU ma ọ bụ imezi ọdịnaya resin epoxy nwere ike melite nguzogide mmiri ink.

Ewezuga iji polymer na-eguzogide mmiri dị elu iji dochie polyurethane ọkọlọtọ, ndị na-eme nchọpụta na-agbakwụnyekarị ihe ndị na-emepụta ihe ma ọ bụ ihe ndị na-emepụta ihe iji nweta mmetụta a chọrọ. Dịka ọmụmaatụ, itinye nanoscale silica n'ime resin na-akwalite nguzogide mmiri na ike, usoro a na-ejikarị eme ihe na mmepụta ink. "Usoro emulsion copolymerization" na-emepụta PUA mejupụtara iji melite nguzogide mmiri, ebe ụzọ dị ka polyethylene glycol monomethyl ether mgbanwe na acetone njikọ nke organosilicon-gbanwetụrụ WPU na-akwalite mmiri nguzogide.

4. Mgbanwe Nguzogide Okpomọkụ dị elu

N'ozuzu, nkwụsi ike dị elu nke WPU adịghị ike, na-amachi nguzogide okpomọkụ ink dabere na mmiri. Polyether polyurethanes na-enwekarị nguzogide okpomọkụ dị elu karịa polyester polyurethanes n'ihi ọnụ ọgụgụ nke njikọ abụọ. Ịgbakwunye polymer ogologo ogologo ma ọ bụ benzene esters / ethers dị ka polymerization monomers na-eme ka nguzogide okpomọkụ dị elu nke polymer na, ya mere, nguzogide ink nke mmiri dabeere na mmiri. E wezụga iji polyether polyurethane nwere ogologo agbụ, ụfọdụ ndị otu na-eji ihe mejupụtara na-eme ka mgbagwoju anya dịkwuo elu ma kwalite nguzogide okpomọkụ. Dịka ọmụmaatụ, ịgbakwụnye nano tin oxide antimony na WPU arụpụtara site na DMPA, polyether 220, na IPDI na-enyere akwa ink aka ịmịkọrọ okpomọkụ, na-eme ka nguzogide okpomọkụ dị elu. Ịtinye silica airgel na polyurethane na-ebelatakwa conductivity thermal ma na-eme ka ink na-eguzogide okpomọkụ.

5. Mgbanwe kwụsie ike

Nkwụsi ike WPU na-emetụta nke ọma ịrụ ọrụ nchekwa ink dabere na mmiri. E wezụga mmiri na nguzogide okpomọkụ, ịdị arọ molekụla na nhazi nhazi dị oke mkpa. Polyester resins na-adịkarị kwụsiri ike karịa resin polyether n'ihi ọtụtụ njikọ hydrogen n'ụdị molekụla. Ịgbakwunye ihe ester iji mepụta polyurethanes agwakọta na-abawanye nkwụsi ike, dị ka iji isocyanate na mgbasa ozi silane mepụta WPU nwere akụkụ abụọ nwere nkwụsi ike dị mma na nkwụsi ike abrasion. Ngwọta okpomọkụ na ịdị jụụ nwekwara ike ịmepụtakwu njikọ hydrogen, na-eme ka nhazi molekụla sie ike na ịkwalite nkwụsi ike WPU na ọrụ nchekwa ink dabeere na mmiri.

6. Mmelite adhesion

Ọ bụ ezie na ị na-eme ka WPU dịkwuo mma na-eme ka mmiri na-eguzogide mmiri, nkwụsi ike dị elu, na nkwụsi ike, WPUs ka na-egosi nkwụsi ike na-adịghị mma na ngwaahịa plastik polyethylene (PE) n'ihi ịdị arọ molecular na polarity. Dịka, a na-agbakwunye polarity na molecular arọ polymers ma ọ bụ monomers iji melite WPU ma kwalite nrapanye ink dabeere na mmiri na ihe ndị na-abụghị polar. Dịka ọmụmaatụ, WPU na-emekọ ihe ọnụ na polyvinyl chloride-hydroxyethyl acrylate resin na-eme ka nrapanye mmiri ghara ịdị n'etiti inks na mkpuchi. Ịgbakwunye resin polyester acrylic na WPU na-emepụta usoro njikọ molekụla pụrụ iche, na-eme ka adhesion WPU dịkwuo elu. Agbanyeghị, ụzọ ndị a nwere ike imetụta akụrụngwa ink mbụ dị ka gloss. Ya mere, usoro mmepụta ihe na-emeso ihe na-enweghị mgbanwe ihe onwunwe iji melite nrapado ink, dị ka ịgbalite elu na electrodes ma ọ bụ obere oge ọgwụgwọ ire ọkụ na-abawanye adsorption.

• Mmechi

Ugbu a, a na-eji ink mmiri eme ihe n'ọtụtụ ebe na nkwakọ nri, ngwungwu ọgwụ, ụlọ akwụkwọ, akwụkwọ, na mkpuchi ndị ọzọ ma ọ bụ ngwa mbipụta. Agbanyeghị, oke arụmọrụ ha na-amachibido ngwa ndị sara mbara. Ka mmata gburugburu ebe obibi na nchekwa na-etolite site na ụkpụrụ ibi ndụ ka mma, inks eco-friendly inks nke na-ebelata ikuku VOC na-edochiwanye ink dabere na ihe mgbaze, na-ama ahịa ahịa ink ọdịnala na-agba mgba.

N'okwu a, ịkwalite arụmọrụ ink site n'ịgbanwe resins nke mmiri, karịsịa polyurethanes nke mmiri, site na ụzọ ọhụrụ dị ka nanotechnology na hybridization nke organic na inorganic ogige dị oké mkpa maka mmepe ink dabeere na mmiri n'ọdịnihu. Ya mere, a na-achọ nyocha ọzọ zuru oke maka mgbanwe resin iji kwalite ịrụ ọrụ ink dabeere na mmiri maka ngwa sara mbara.