Kana chiedza chichishanda pane zvigadzirwa zvepurasitiki, chikamu chechiedza chinoratidzwa kubva pamusoro pechigadzirwa kuti chibudise kupenya, uye chimwe chikamu chechiedza chinodzorwa uye chinoparidzirwa mukati mepurasitiki.Paunenge uchisangana ne pigment particles, kuratidza, refraction uye kutapurirana kunoitika zvakare, uye ruvara runoratidzwa i pigment zvimedu.Ruvara rwakaratidzwa.
Inowanzo shandiswa mapurasitiki ekupenda nzira ndeaya: yakaoma coloring, paste colorant (color paste) coloring, color masterbatch coloring.
1. Dry coloring
Iyo nzira yekusanganisa uye kupenda zvakananga ne toner (pigments kana dhayi) ichiwedzera huwandu hwakakodzera hwehupfu hwekuwedzera uye epurasitiki mbishi zvinhu inonzi yakaoma coloring.
Zvakanakira kuoma kwemavara akanaka dispersibility uye mutengo wakaderera.Inogona kutsanangurwa zvisina tsarukano maererano nezvinodiwa, uye kugadzirira kuri nyore kwazvo.Iyo inochengetedza kushandiswa kwevashandi uye zviwanikwa zvekushandisa mukugadziriswa kwemavara akadai semavara masterbatches uye mavara anonamira, saka mutengo wakaderera, uye vatengi nevatengesi havafanirwe kuishandisa.Inoganhurwa nehuwandu;iyo yakaipa ndeyokuti iyo pigment ichabhururuka guruva uye inokonzera kusvibiswa panguva yekufambisa, kuchengetedza, kuyera uye kusanganiswa, izvo zvichakanganisa nzvimbo yekushanda uye hutano hwevashandi.
2. Namira colorant (color paste) coloring
Munzira yekuisa mavara, iyo colorant inowanzosanganiswa neyemvura yekuwedzera coloring (plasticizer kana resin) uye inogadzika kuita paste, yobva yasanganiswa zvakaenzana nepurasitiki, senge color paste yeenamel, pendi, nezvimwe.
Kubatsira kwepasty colorant (ruvara paste) ruvara ndeyekuti kupararira mhedzisiro yakanaka, uye kusvibiswa kweguruva hakuzoumbwa;chakashata ndechekuti huwandu hwemavara hahusi nyore kuverenga uye mutengo wakakwira.
3. Masterbatch coloring
Paunenge uchigadzira mavara masterbatches, iwo akakodzera mavara pigment anowanzo gadzirirwa kutanga, uye ipapo pigment inosanganiswa muruvara masterbatch carrier zvinoenderana neformula reshiyo.Iwo mamorekuru anosanganiswa zvizere, obva aitwa zvidimbu zvakafanana nesaizi kune resin zvimedu, izvo zvinozoshandiswa nemidziyo yekuumba kugadzira zvigadzirwa zvepurasitiki.Kana yashandiswa, chikamu chidiki chete (1% ~ 4%) chinoda kuwedzerwa kune resin ine ruvara kuti uwane chinangwa chekupenda.
Kana ichienzaniswa neyakaoma coloring, masterbatch coloring ine zvinotevera zviri pachena zvakanakira: kuvandudza kusvibiswa kwezvakatipoteredza kunokonzerwa nekubhururuka toner, nyore kushanduka kwemavara panguva yekushandiswa, hapana kucheneswa kwakakosha kweiyo extruder hopper, uye yakagadzikana formula Iine kushanda kwakasimba uye inogona kuve nechokwadi chekuti ruvara rwe iwo mabheti maviri emavara masterbatches emhando imwechete anoramba akagadzikana.Izvo zvakashata zve masterbatch coloring ndezvekuti mutengo wekupenda wakakwira uye huwandu hwekugadzirira hauchinjike.Mukuwedzera, pearlescent toner, fluorescent powders, luminous powders uye mamwe matoners anogadzirwa kuva mavara masterbatches uye ozoshandiswa kupenda mapurasitiki.Kuenzaniswa nemapurasitiki ekusanganisa zvakanangana, mhedzisiro (senge gloss, nezvimwewo) inoneteswa neinenge 10%, uye majekiseni ekuumba zvigadzirwa zvinowanzoitawo kuyerera mitsara.Mitsetse uye seams.
mareferensi
[1] Zhong Shuheng.Kuumbwa Kwemavara.Beijing: China Art Publishing House, 1994.
[2] Rwiyo Zhuoyi et al.Plastic raw materials uye additives.Beijing: Science and Technology Literature Publishing House, 2006. [3] Wu Lifeng et al.Masterbatch User Manual.Beijing: Chemical Industry Press, 2011.
[4] Yu Wenjie et al.Plastic Additives uye Formulation Design Technology.3rd Edition.Beijing: Chemical Industry Press, 2010. [5] Wu Lifeng.Plastic Coloring Formulation Design.2nd Edition.Beijing: Chemical Industry Press, 2009
Nguva yekutumira: Kubvumbi-09-2022