PVC - pachena
HSQY Plastiki
HSQY-210119
0.15~5mm
Chena, tsvuku, girini, yero, nezvimwewo.
920*1820; 1220*2440 uye saizi yakagadzirirwa
| Kuwanikwa: | |
|---|---|
Tsananguro yeChigadzirwa
HSQY clear rigid PVC zvinhu zvepepa inosanganisa kujeka, kuomarara, kuramba makemikari uye kushanda zvakanaka kwe thermoforming, mabhokisi anopetwa, kudhinda, kurongedza mahwindo uye kugadzirwa kwemaindasitiri.
Hurefu hwe PVC zvinhu zvepepa hwakaburitswa pari zvino hunosvika 0.21mm kusvika 6.5mm nehukuru hwe zvinhu zvepepa hwakajairika hunosanganisira 700×1000mm, 915×1830mm uye 1220×2440mm. Zviyero zvakagadzirwa zvinogonawo kukurukurwa zvichienderana nehukobvu, nzira yekugadzirisa uye zvinodiwa papurojekiti.
Mavara ebhuruu anopenya uye anopenya akakodzera kushandiswa uko kuoneka kwechigadzirwa kwakakosha. Mavara machena, matema, matsvuku, eyero, bhuruu nemamwe mavara akasarudzwa anogonawo kugadzirwa zvichienderana nezvinodiwa.
Zvakajeka Zvakasimba PVC Pepa
Ruvara rwakajeka PVC Pepa
| yePfuma | Tsanangudzo |
|---|---|
| Chigadzirwa | Zvakajeka Zvakasimba PVC Pepa |
| Zvinhu | Polyvinyl Chloride yakasimba ( PVC ) |
| Nzira Yokugadzira | Kuwedzerwa kwezvinotsanangurwa papeji rechigadzirwa ichi |
| Saizi Dzakajairika dzeMapepa | 700×1000mm, 915×1830mm, 1220×2440mm, Yakagadzirirwa |
| Upamhi hweExtrusion hwakanyanya | Inenge 1280mm zvichienderana nezvinodiwa pari zvino |
| Ukobvu | 0.21mm - 6.5mm |
| Kuwanda kwevanhu | Inenge 1.36 - 1.38 g/cm³ |
| Ruvara | Ruvara rwebhuruu rwakajeka, rwakapfava, ruchena, dema, dzvuku, yero, bhuruu uye mavara akasarudzwa akagadzirwa |
| Pamusoro | Inopenya / Inopenya |
| Simba reKusimba | Pamusoro pe52 MPa zvichienderana ne zvinhu zvepepa zvakataurwa pari zvino |
| Simba reMhando | Pamusoro pe5 kJ/m² zvichienderana ne zvinhu zvepepa zvakataurwa pari zvino |
| Kudonha Kwemhedzisiro | Hapana kutyoka pasi pemamiriro ekuyedzwa kwechigadzirwa ataurwa |
| Tembiricha Inoderedza Kunyorovesa | Pamusoro pe75°C yemhando dzekushongedza; pamusoro pe80°C yemhando dzakasarudzwa dzemaindasitiri zvichienderana neruzivo rwechigadzirwa chiripo |
| Kugadzirisa | Kugadzira thermoforming, kugadzira vacuum, kucheka, kucheka ne die, kudhinda, kupeta, kuisa mamakisi uye kugadzira zvichienderana negiredhi uye ukobvu |
| Magiredhi Anoshanda | Magiredhi ekudzivirira kusimba, UV-yakagadzikana, anti-namira uye mamwe magiredhi anoenderana nekushandiswa anoenderana nekusimbiswa |
Cherechedza: Makoshero ari pamusoro apa anotsanangura huwandu hwakasimba hwe PVC zvinhu zvepepa huripo. Kushanda kwechiedza, maitiro emurazvo, kuramba kweUV, kushanda kwekudzivirira static uye kukodzera kwemutemo zvinoenderana nekugadzirwa chaiko uye zvinofanirwa kusimbiswa kune giredhi chaiyo yechigadzirwa usati waraira.
Clear rigid PVC zvinhu zvepepa chinhu chinoonekera kana kuti chine ruvara rushoma chakagadzirwa kuti chive chakasimba, chakagadzikana uye chinoshanda zvakanaka pasina kuchinjika kunoenderana nepurasitiki PVC .
Chinhu ichi chinoshandiswa mukushandiswa kwakatwasuka- zvinhu zvepepa uye chinogonawo kupiswa uye kugadzirwa kuita zvikamu zvine mativi matatu. Zvichienderana nekukora uye giredhi, chinogona kuchekwa, kudhindwa, kuchekwa-chekwa, kupetwa, kukweshwa, kusungirirwa, kusungirirwa kana kupiswa.
Pakurongedza nekushandisa pakuratidza, chinhu chinoonekera PVC chinoita kuti chigadzirwa chionekwe ukuwo chichiramba chakasimba. Pakushandisirwa mumaindasitiri, PVC inokosheswawo nekuda kwekusagona kwayo kushandisa makemikari, hunhu hwayo hwekudzivirira kupisa kwemagetsi uye kuchinjika kwayo pakugadzira.
Kujeka kwakanaka: Sarudzo dzakajeka uye dzakaita ruvara rwebhuruu dzinotsigira kurongedza, kuratidza uye mashandisirwo akaumbwa uko kuoneka kwechigadzirwa kwakakosha.
Kusabatwa nemakemikari: Kusabatwa nemakemikari PVC kunopa simba rekudzivirira makemikari akawanda emaindasitiri; kuenderana kwacho kunoenderana nerudzi rwemakemikari, huwandu hwemakemikari uye tembiricha.
Kusimba kwakanaka: Iyo zvinhu zvepepa inochengetedza kuomarara kunobatsira pakurongedza, kudhinda uye kugadzira zvinhu.
Nzvimbo yakapfava inopenya: Yakakodzera kurongedza, kudhinda uye kushandura kushongedza.
Kugona kugadzira thermoforming: Magiredhi akakodzera anogona kugadzirwa ne vacuum kana kugadzirwa ne thermoform kuita mablister, Matireyi , macover nezvimwe zvikamu.
Kudhinda nekupeta: Magiredhi akasarudzwa anogona kudhindwa, kuchekwa, kutemwa uye kupetwa kuti aonekwe.
Ukobvu hwakawanda: Hurefu hwe zvinhu zvepepa hwazvino hunotangira pa0.21mm kusvika 6.5mm.
Saizi dzakagadzirwa: Zviyero zvakajairwa uye zvakagadziriswa zvinhu zvepepa zvinowanikwa zvichienderana nekugona kugadzira.
Kugadzira thermoforming ndeimwe yenzira huru dzekushandura simbi dzakaoma PVC . Panguva yekuumbwa, zvinhu zvepepa inodziiswa kusvika yanyatsogadzirwa, yozoumbwa pamusoro kana kuti kuita mold yozotonhodzwa kuitira kuti irambe yakagadzirira.
Ukobvu hwezvinhu, nguva yekupisa, chimiro chemold, kudzika kwechimiro uye magadzirirwo emuchina zvinokanganisa ukobvu hwekupedzisira hwemadziro uye chitarisiko chepamusoro. Vatengi vanofanira kuyedza giredhi rakasarudzwa pamidziyo chaiyo yethermoforming vasati vabvumidza kugadzirwa kwehuwandu hwakawanda.
| Chinhu Chinoumba Thermoforming | Nei Chichikosha |
|---|---|
| Kutanga Ukobvu | Inosarudza zvinhu zviripo usati watambanudza panguva yekuumbwa |
| Kupisa Kufanana | Inobatsira kugadzira chimiro chakafanana uye chitarisiko chepamusoro |
| Kudzika Kwekuumba | Kudhonza kwakadzika kunogona kuderedza ukobvu hwemadziro emunharaunda |
| Geometry yeFomu | Makona, mbabvu nemaburi zvinopesvedzera kugoverwa kwezvinhu |
| Chitarisiko chemaziso | Kujeka uye kupenya zvinofanirwa kuongororwa mushure mekuumbwa |
| Ukobvu hwemadziro hwakapedzwa | Inofanira kuongororwa pane chikamu chakagadzirwa pane kungofungidzirwa kubva pakutanga zvinhu zvepepa chete |
Ruvara rwepachena PVC runogona kushandurwa kuita makatoni anopetwa, maoko akajeka, mahwindo ekurongedza uye mabhokisi ekutengesa uko vatengi vanofanira kuona chigadzirwa chiri mukati mepakeji.
Pakugadzira mabhokisi anopetwa, zvinhu zvakakosha zvinosanganisira ukobvu hwe zvinhu zvepepa , kuomarara, nzira yekupetwa, geometry yekukwenya, sisitimu yekudhinda, nzira yekubatanidza uye huremu hwechigadzirwa chakapakwa. Chinhu chakanakisa chinofanira kusarudzwa zvichienderana nekugadzirwa kwebhokisi rese kwete ukobvu chete.
Rigid PVC zvinhu zvepepa inogona kushandiswa pakudhinda kweoffset, kudhinda skrini uye mamwe mashandisirwo emifananidzo kana giredhi rakakodzera rekudhinda uye sisitimu yeinki inoenderana nayo yasarudzwa.
Kushanda zvakanaka kwekudhinda kunoenderana nekurapwa kweink pamusoro, kemikari yeinki, kuomesa kana kugayiwa kwayo uye chero kupetwa kana kupiswa kweinki gare gare. Vatengi vanofanira kuona kuti ink yakanamirwa uye chitarisiko chayo chapera vachishandisa zvinhu zvacho vasati vagadzira zvinhu zvakawanda.
Zvinhu zveHSQY zvakasimba PVC zvinogona kupihwa kune akasiyana maapplication ekurongedza, kugadzira uye kudhinda. Maapplication akarongwa anoda mhando chaiyo yezvinhu zvekushandisa uye magwaro anotsigira.
PVC Pepa yeKugadzira Vacuum
Kurongedza Kwekurapa Kwakanangana Nekushandisa PVC
PVC Pepa yemabhokisi anopetwa
| Ekushandisa | Zvinhu Zvinonyanya Kukosha Pakusarudza Makiyi |
|---|---|
| Kugadzira Vacuum | Ukobvu, kudzika kwekugadzira, kujeka, kupararira uye kuchekerera madziro |
| Mabhokisi Anopeta | Kujeka, kuomarara, kushanda zvakanaka, kudhinda uye kubatana |
| Kudhinda kweoffset | Kurapa pamusoro, kunamatira kweinki, kupora uye kugadzikana kwehukuru |
| Mapundu & Kurongedza Kwekutengesa | Kuumbwa, kujeka, chimiro chekuvhara uye kuomarara kwepakeji |
| Kugadzira Maindasitiri | Ukobvu, kuramba makemikari, kugadzira michina, kusonera uye nzvimbo yekushanda |
| Kurongedza Kwekurapa | Giredhi rakatsaurirwa rekurongedza kwekurapa, maitiro ekubvisa utachiona, zvinodiwa nemutemo uye kusimbiswa kwekurongedza |
Nzira yakajairika inoonekera PVC zvinhu zvepepa haifanirwe kungofungidzirwa kuti yakakodzera chero chinhu chipi zvacho chinogadziriswa pakurongedza. Kushandiswa kwezvekudya, zvekushandisa pakurapa uye zvemishonga kunogona kuda mishonga yakatarwa, miganhu yekutama, kuenderana kwekubvisa utachiona uye magwaro akanyorwa pamusika.
| PVC Giredhi | reMashandisirwo Akajairika | Zvinofanira Kusimbiswa |
|---|---|---|
| Zvakajeka Zvakajairika PVC | Kuratidzwa, mabhokisi anopetwa, kudhinda uye kugadzira maindasitiri | Ukobvu, kujeka, kuomarara uye nzira yekushandura |
| Giredhi reKubata Chikafu | Zvishandiso zvekushandisa pakurongedza chikafu zvakasarudzwa | Musika wekuenda, rudzi rwechikafu, mamiriro ekubatana uye zvinodiwa zvekutama zvinoenderana nazvo |
| Giredhi reKurongedza Kwekurapa | Chishandiso chekurapa chakasarudzwa Matireyi uye kurongedza | Maitiro ekuchenesa, kusimbisa kurongedza uye zvinodiwa zvinoshanda |
| Mishonga PVC | Kushandiswa kwemishonga pakubvisa mablister | Zvinyorwa zvakatsaurirwa zvemishonga, ukobvu, chimiro chezvipingamupinyi uye magwaro ekutevedzera mitemo |
| Chinhu Chekusarudza | Chinoomesesa PVC | PET / APET |
|---|---|---|
| Kujeka | Sarudzo dzakanaka dzakajeka uye dzine ruvara rwebhuruu | Kujeka kwakanyanya zvichienderana negiredhi |
| Kugadzira Thermoforming | Kushanda zvakanaka pakuumba uye giredhi rakakodzera re PVC | Inoshandiswa zvakanyanya pakurongedza kwakajeka kwe thermoformed |
| Kudhinda & Kupeta | Inowanzoshandiswa pakushandisa mabhatani anopenya uye anopetwa | Zvinogoneka zvichienderana ne zvinhu zvepepa giredhi uye maitiro ekushandura |
| Mashandisirwo Akajairika | Mapundu, mabhokisi anopetwa, kudhinda, kuratidzwa uye zvikamu zvakagadzirwa | Matreyi, magoko eclamshell, mablister uye kurongedza kwakajeka |
| Kusarudzwa Kwezvinhu | Sarudza zvichienderana nemidziyo yekugadzira, kudhinda, kuvhara, zvinodiwa nemitemo, zvinotarisirwa pakushandisa patsva, dhizaini yezvikamu uye mutengo wepakeji yese. | |
Ukobvu hunodiwa hunoenderana nechigadzirwa chapera kwete zita rechishandiso chete. Marudzi anotevera ndiwo mareferensi esarudzo uye anofanirwa kusimbiswa kuburikidza nemiedzo yekugadzira kana yekugadzira.
| Kufunga | Kwakajairika |
|---|---|
| 0.21 - 0.5mm | Kurongedza kwakatetepa, mabhokisi anopetwa, kudhinda uye zvinhu zvisina kudzika |
| 0.5 - 1.5mm | Kurongedza kwakasimba kwakajeka, zvikamu zvakakura zvakagadzirwa uye zvinhu zvakagadzirwa |
| 1.5 - 3mm | Zvivharo zvakasimba, mapaneru, kugadzira maindasitiri uye zvikamu zvakasimba zvakagadzirwa |
| 3 - 6.5mm | Maindasitiri akakora zvinhu zvepepa uye mashandisirwo akagadzirwa panodiwa kuomarara kukuru |
Rigid PVC inoshandiswa zvakanyanya munzvimbo dzekugadzira makemikari uye mumaindasitiri nekuti inopa hunhu hwekusabatwa nemaacids akawanda, alkalis, munyu nemamwe makemikari.
Kuenderana kwemakemikari kunofanirwa kuongororwa uchishandisa kemikari chaiyo, huwandu, tembiricha yekusangana nayo uye nguva yekusangana kwayo. Chirevo chekuti PVC haigone kushandiswa nemakemikari hachifanirwe kutsiva ongororo yekuenderana kwekushandisa kwayo.
Rigid PVC inogona kuratidza maitiro ekuzvidzima yega zvichienderana nekugadzirwa uye nzira yekuyedza. Kana purojekiti ichida kurongwa kwakatsanangurwa kwekubvira, shandisa giredhi rakaedzwa rinoshanda uye simbisa standard, thickness uye test report usati wabvumidzwa.
Sarudzo dzeAnti-static, UV-stabilized uye anti-sticking PVC dziripowo kune mamwe maapplication akasarudzwa. Hunhu uhwu hunofanirwa kubatwa semabasa anoenderana negiredhi pane hunhu hwese hwese PVC zvinhu zvepepa hwakajeka.
| Ruzivo rweZvinodiwa | Kupa |
|---|---|
| Kushandiswa | Kugadzira thermoforming, bhokisi rinopetwa, kudhinda, kurongedza mablister, kugadzira maindasitiri kana zvimwe zvinoshandiswa |
| Ukobvu | Ukobvu hwezita uye kushivirira kunodiwa |
| Saizi yepepa | Upamhi nehurefu hwakajairwa kana hwakagadziriswa |
| Ruvara | Ruvara rwakajeka rwechisikigo, ruvara rwebhuruu kana ruvara rwakagadzirwa |
| Zvinodiwa zveOptical | Kujeka kunodiwa, mhute, ruvara, kupenya kana kunaka kwenzvimbo kana zvichidikanwa |
| Kugadzirisa | Kugadzira thermoforming, kugadzira vacuum, kudhinda, kupeta, kucheka ne die, kusanganisa kana kugadzira |
| Zvinodiwa Pakushanda | Anti-static, UV resistance, anti-sticking, murazvo unodiwa kana rimwe basa rakakosha |
| Zvinodiwa zveMutemo | Chinodiwa chekudya, chekurapa, chemishonga kana chemusika wekuenda kana zvichidikanwa |
| Huwandu | Huwandu hwemuenzaniso, odha yekuedza, odha yenguva dzose uye kudiwa kwegore negore |
| Kwaunoenda | Nyika nenzvimbo yekuenda |
Pepa rePVC rakajeka Pepa reData.pdf
Kubvira kwe Pepa rePVC rakaomarara .pdf
PVC Mushumo weKuyedza weBhodhi reGrey.pdf
PVC Bvisa Ruzivo rweFirimu.pdf
Mushumo weKuedza weBhodhi reGrey re20mm.pdf
PVC Pepa ye Offset Test Report.pdf
Chinyorwa Chekucherechedza: Mafaira aya anosanganisira zvigadzirwa zvakati wandei PVC zvinhu zvepepa uye firimu. Simbisa kuti fomura yakaedzwa, ukobvu uye mashandisirwo anoenderana nezvinhu chaizvo zviri kuodwa usati washandisa gwaro kuti ribvumidzwe nehunyanzvi kana kuti kutevedzera mitemo.
Clear rigid PVC zvinhu zvepepa chinhu chinoonekera chepolyvinyl chloride chinoshandiswa pakugadzira thermoforming, kupeta mabhokisi, kudhinda, kurongedza zvakajeka, kuratidza uye kugadzira zvinhu mumaindasitiri.
Tsanangudzo ye zvinhu zvepepa yazvino iri papeji rino inosanganisira angangoita 0.21mm kusvika 6.5mm. Kuwanikwa chaiko kunoenderana nehupamhi, saizi ye zvinhu zvepepa , ruvara uye giredhi rechigadzirwa.
Saizi dzakajairika dzinosanganisira 700×1000mm, 915×1830mm uye 1220×2440mm. Saizi dzakagadzirwa dzinogonawo kukurukurwa.
Tsanangudzo ye extrusion iripo inoratidza upamhi hwepamusoro hunosvika 1280mm. Dzimwe nzira dzekugadzira dzeHSQY PVC uye mhando dzezvigadzirwa zvinogona kunge zvine hunyanzvi hwakasiyana hwehupamhi.
Ehe. Magiredhi akakodzera e PVC anogona kugadzirwa ne thermoform uye kugadzirwa ne vacuum. Mamiriro ekupisa uye magadzirirwo ekugadzira zvinoenderana nehukobvu, chimiro, michina uye chimiro chemold.
Ehe. Yakakodzera PVC inogona kudhindwa, kuchekwa, kutemwa uye kupetwa mumakatoni akajeka uye mumahwindo ekurongedza. Ukobvu uye dhizaini yekukwenya inofanira kuenderana nehukuru hwebhokisi nehuremu hwechigadzirwa.
Ehe. Magiredhi ekudhinda akakodzera anogona kushandiswa pakugadzira ma 'offset', 'screen' uye mamwe maitiro ekudhinda. Kuenderana kweinki uye kunamira kwayo zvinofanirwa kuyedzwa zvisati zvagadzirwa.
Rigid PVC pachayo inonwisa mvura zvishoma uye hainwi mvura nyore nyore. Kushanda kwemvura kwepakeji, chivharo kana chimiro chapera kunoenderana nemajoini, zvisimbiso uye dhizaini yechigadzirwa chose.
Kwete. UV-stabilized PVC inofanira kubatwa segiredhi chaiyo inoshanda. Kana zvichidikanwa kuti ugare uchivhenekerwa nezuva kwenguva refu, taura zvinodiwa neUV uye mamiriro ekunze usati waraira.
Kwete. Anti-static PVC imhando chaiyo yechigadzirwa. Standard clear PVC haifanirwe kufungidzirwa kuti ine resistance inodzorwa pamusoro kunze kwekunge specification ye anti-static yasimbiswa.
Kurongedza chikafu kunoda giredhi rekushandisa rakanangana ne PVC uye magwaro akakodzera musika wekuenda, rudzi rwechikafu uye mamiriro ekubatana nacho. Standard industrial clear PVC haifanirwe kungoonekwa sezvinhu zvekubatana nechikafu.
Kurongedza kwemidziyo yekurapa kana mishonga kunofanirwa kushandisa mhando yakatarwa zvichienderana nekuvhiyiwa, kusimbiswa kwekurongedza uye zvinodiwa nemitemo inoshanda.
Ehe. Ruzivo rwechigadzirwa chiripo rwunotaura kuti sampuro dzemuchitoro dzinogona kupihwa kuti dziongororwe mhando, uye mutoro wekukurumidza unovharwa nemutengi.
Ruzivo rwechigadzirwa chiripo parizvino runoratidza mazuva angangoita gumi kusvika gumi nemana ekushanda ekugadzirwa kwezvinhu zvakawanda, zvichienderana nehuwandu uye zvakatsanangurwa. Nguva yekupedzisira inofanira kusimbiswa kana odha yaiswa.
Ruzivo rwechigadzirwa chiripo runoratidza EXW, FOB, CNF neDDU pakati pemitemo yekutumira iripo. Mitemo yekupedzisira yekutengeserana inofanira kusimbiswa kune odha chaiyo.
Ndapota ipai mashandisirwo, ukobvu, zvinhu zvepepa saizi kana upamhi hwerondedzero, ruvara, zvinodiwa pamusoro, nzira yekugadzirisa, zvinodiwa zvekushanda kana zvemutemo, huwandu uye kwaunoda kuenda.
Muenzaniso: A4-size rigid clear PVC zvinhu zvepepa yakaputirwa mubhegi rePP nebhokisi zvichienderana neruzivo rwechigadzirwa chiripo.
Kurongedza Mapepa: Inenge 30kg pabhegi rimwe nerimwe kana zvichienderana nezvinodiwa nevatengi.
Kurongedza mapareti: Inenge 500-2000kg papareti imwe neimwe yeplywood.
Kutakura mumidziyo: Inenge matani makumi maviri pasi pemamiriro ezvinhu akajairwa ekutakurisa, zvichienderana nehukuru uye mamiriro ekurongedza.
Kurongedza Kwekugadzira
Kurongedza Pallet
Zvitupa nemishumo zviripo zvinofanirwa kuenzaniswa negiredhi chaiyo PVC , fomura, ukobvu uye mashandisirwo aunoda usati wabvumidzwa.
Kuratidzwa kweShanghai kwa2017
Kuratidzwa kweShanghai kwa2018
Kuratidzwa kweSaudi kwa2023
Kuratidzwa kweUSA kwa2023
Kuratidzwa kweAustralia kwa2024
Kuratidzwa kweUSA kwa2024
Kuratidzwa kweMexico kwa2024
Kuratidzwa kweParis kwa2024
Ruzivo rweKambani
ChangZhou HuiSu QinYe Plastic Group yakavambwa kwemakore anopfuura gumi nematanhatu, ine mafekitori masere ekutengesa mhando dzese dzezvigadzirwa zvepurasitiki, zvinosanganisira PVC RIGID CLEAR SHEET, PVC FLEXIBLE FILM, PVC GREY BOARD, PVC FOAM BOARD, PET SHEET, ACRYLIC SHEET. Inoshandiswa zvakanyanya paPackage, Sign, D ecoration nedzimwe nzvimbo.
Pfungwa yedu yekufunga nezvemhando yebasa nerubatsiro zvakaenzana uye mashandiro anoita kuti vatengi vavimbe, ndosaka takatanga kushanda pamwe chete nevatengi vedu vanobva kuSpain, Italy, Austria, Portugar, Germany, Greece, Poland, England, America, South America, India, Thailand, Malaysia nezvimwewo.
Nekusarudza HSQY, uchawana simba nekugadzikana. Tinogadzira zvigadzirwa zvakawanda muindasitiri uye tinogara tichigadzira matekinoroji matsva, mafomula uye mhinduro. Mukurumbira wedu wemhando yepamusoro, sevhisi yevatengi uye rutsigiro rwehunyanzvi hauna muganho muindasitiri. Tinoramba tichiedza kusimudzira tsika dzekuchengetedza nharaunda mumisika yatinoshandira.
Chikamu cheChigadzirwa
Ngatitsvagei Mhinduro Yakakodzera Yepurasitiki