Masu wargazawa su ne ƙarin abubuwa da ake amfani da su wajen daidaita barbashi masu ƙarfi a cikin kafofin watsa labarai kamar manne, fenti, robobi da gaurayen filastik.

A da, shafa ba ya buƙatar masu wargazawa. Tsarin kamar fenti na alkyd da nitro ba ya buƙatar masu wargazawa. Masu wargazawa ba sa bayyana har sai fenti na acrylic resin da fenti na polyester resin. Wannan kuma yana da alaƙa da haɓakar launuka, saboda ba za a iya raba aikace-aikacen launuka masu inganci da taimakon masu wargazawa ba.
Masu wargazawa su ne ƙarin abubuwa da ake amfani da su wajen daidaita barbashi masu ƙarfi a cikin kafofin watsa labarai kamar manne, fenti, robobi da gaurayen filastik. Ɗaya daga cikin ƙarshensa shine sarkar narkewa wanda za a iya narkar da shi a cikin hanyoyin watsawa daban-daban, ɗayan kuma shine ƙungiyar masu ɗaure launin da za a iya shaƙawa a saman launuka daban-daban kuma a yi amfani da su don canzawa zuwa hanyar haɗin gwiwa mai ƙarfi/ruwa (maganin pigment/resin).

Maganin resin dole ne ya ratsa sararin da ke tsakanin agglomerates na pigment. Duk pigments suna wanzuwa a matsayin agglomerates na pigment, waɗanda “tarin” ƙwayoyin pigment ne, tare da iska da danshi da ke cikin sararin ciki tsakanin ƙwayoyin pigment guda ɗaya. Barbashin suna hulɗa da juna a gefuna da kusurwoyi, kuma hulɗar da ke tsakanin barbashin ba ta da yawa, don haka ana iya shawo kan waɗannan ƙarfin ta hanyar kayan aikin watsawa na yau da kullun. A gefe guda kuma, aggroments sun fi ƙanƙanta, kuma akwai hulɗar fuska da fuska tsakanin ƙwayoyin pigment guda ɗaya, don haka yana da matuƙar wahala a warwatsa su zuwa ƙananan barbashi. A lokacin niƙa na'urar niƙa na'urar, aggromerates na pigment suna ƙara ƙanƙanta a hankali; yanayin da ya dace shine a sami ƙananan barbashi.

Za a iya raba tsarin niƙa pigment zuwa matakai uku masu zuwa: mataki na farko shine jika. A ƙarƙashin juyawa, duk iska da danshi da ke saman pigment ana fitar da su kuma ana maye gurbinsu da maganin resin. Mai watsawa yana inganta danshi na pigment, yana mai da haɗin gwiwa mai ƙarfi/gas zuwa haɗin gwiwa mai ƙarfi/ruwa da inganta ingancin niƙa; mataki na biyu shine ainihin tsarin niƙa pigment. Ta hanyar tasirin makamashin injiniya da ƙarfin yankewa, ana lalata agglomerates na pigment kuma girman barbashi ya zama ƙananan barbashi. Lokacin da aka buɗe pigment ta hanyar ƙarfin injiniya, mai watsawa zai sha da sauri ya naɗe ƙananan barbashi masu girman barbashi; a mataki na uku na ƙarshe, watsa pigment dole ne ya kasance mai ƙarfi don hana samuwar flocculation mara tsari.

Amfani da na'urar watsawa mai dacewa na iya kiyaye ƙwayoyin launin a nesa mai dacewa da juna ba tare da dawo da hulɗa ba. A yawancin aikace-aikacen, ana son yanayin da aka cire launin. A wasu aikace-aikacen, watsawar launin na iya zama mai karko a ƙarƙashin yanayin coflocculation mai sarrafawa. Taimakawa wajen jika ruwa na iya rage bambancin tashin hankali tsakanin launin da ruwan resin, yana hanzarta jika launin ta hanyar resin; taimakon watsawa yana ƙara kwanciyar hankali na watsawar launin. Saboda haka, samfurin iri ɗaya sau da yawa yana da ayyukan taimakawa wajen jika da kuma watsawa.

Yaɗuwar launin fata tsari ne daga tarin abubuwa zuwa yanayin da aka warwatse. Yayin da girman ƙwayoyin cuta ke raguwa kuma yankin saman yana ƙaruwa, ƙarfin saman tsarin ma yana ƙaruwa.
Tunda makamashin saman tsarin yana raguwa kwatsam, da zarar an ga ƙaruwar yankin saman, ana buƙatar ƙarin kuzari don amfani daga waje yayin niƙa, kuma ƙarfin tasirin mai watsawa yana buƙatar don kiyaye daidaiton watsawa na tsarin. Gabaɗaya, launukan da ba su da tsari suna da girman barbashi mafi girma, ƙananan yankunan saman, da kuma mafi girman polarity na saman, don haka suna da sauƙin warwatsewa da daidaita su; yayin da launuka daban-daban na halitta da baƙin carbon suna da ƙananan girman barbashi, manyan yankunan saman, da ƙananan polarity na saman, don haka yana da wahalar warwatsewa da daidaita su.

Saboda haka, masu rarrabawa galibi suna ba da fannoni uku na aiki: (1) inganta jikewar launin fata da inganta ingancin niƙa; (2) rage ɗanko da inganta dacewa da kayan tushe, inganta sheƙi, cika da rarrabewar hoto, da inganta daidaiton ajiya; (3) ƙara ƙarfin launin fata da yawan launi da inganta daidaiton launin fata.

Sabbin Kayayyakin da aka sake Haifa na Nanjing suna bayar dawakili mai watsa ruwa don fenti da shafi, har da wasu da suka dace da Disperbyk.

In Labari na gaba, za mu bincika nau'ikan masu rarrabawa a cikin lokaci daban-daban tare da tarihin ci gaban masu rarrabawa.