Umbra: mtundu zachilengedwe ndi mithunzi ake

Umbra - mtundu kuti anthu amapeza chirengedwe. Ofunda lapansi, makungwa a mitengo, zokometsera onunkhira, kuchotsa zithaphwi, ofunda nyama ubweya - kucheza limatcha zimenezi ndi mtundu ofunda, koma ndi mafano awo amagwiritsidwa ntchito kawirikawiri. Koma malangizo chachikulu cha ntchito yake - kugwiritsa ntchito mithunzi kwambiri ndi zofewa pamene kujambula thupi.

mtundu Features

Umbra zachilengedwe - mtundu, kutanthauza mitundu ya ocher, koma zambiri ndi manganese. chigawo Kudziwa pamaso pa hue Kamaoneka.

Chifukwa mwachibadwa, utoto izi kugonjetsedwa ndi kupukuta mwachilungamo msanga. A wosanjikiza zonyalazo umber zachilengedwe zina amagwiritsidwa ntchito utoto mpumulo ntchito pa izo, youma patalipatali.

yopsereza umber

Wa anakonza opangidwa kuchokera angapo zachilengedwe mtundu. Mwachitsanzo, chifukwa calcination pa kutentha 400-600 ° C, Natural umber amakhala red-mkuwa ndi mithunzi bulauni. Choncho yopsereza umber mtundu ponena kuti akokere njerwa nyumba, mithunzi, khungu, drapery.

Green mithunzi ya umber

Pamene kuwonjezera zigawo zina zopezera zachilengedwe Kamaoneka mithunzi. zina ndi: spinel wobiriwira, zobiriwira hromoksid, hydrates, chitsulo ndi oxides manganese ndi aluminosilicates. Kuwala wobiriwira ndi mdima wobiriwira Umbria ali yemweyo mtundu bata ndi luso ziume mofulumira, ndipo Mwachibadwa, chifukwa mitundu imeneyi mulinso manganese. Komabe, dziŵani kuti pamene kulumikiza ku chiyambi mafuta utoto hue zingakhale pang'ono mdima.

kugwiritsa kupenta

Umber ojambula zithunzi ntchito kutsatira mithunzi mu khungu akufuna kuchotsa kale ntchito dothi wobiriwira. Umber Kamaoneka kulocha amaonedwa kwambiri amisiri a. Mwachitsanzo, Rembrandt ndi Rubens ankakhulupirira kuti umbra - mtundu, umene uli chabe singasiyanitsidwe chifukwa autilainipo.

Ndipo ngati inu kusakaniza penti ndi amabisa, inu mukhoza kutenga wobiriwira ndi siliva imvi. Vermeer wothira amabisa umber kwa zina zachidule waukuluwo. Inapeza utoto ichi ntchito yake ndi mu phunziroli ndi. Pakuti chifaniziro cha mithunzi limaonetseratu pa makoma loyeretsedwa wa Vermeer ntchito umber wothira wakuda utoto ndi kubisa. ojambula zithunzi zina za nthawi, nayenso, chimagwiritsidwa ntchito kuphatikiza.

Kuti tipeze kum'chitira bulauni getsi kamvekedwe nthaka ntchito chimaonekera kapena translucent wosanjikiza Umbria. Mtundu ndi zofewa, koma osati yowala.

Momwe mithunzi ya utoto umber?

Childs, akonzedwa a mitundu kuti mthunzi uli, mu maonekedwe ake kopambana, ndi kuti ntchito kutulutsa mitundu ina, koma osati mosemphanitsa. Koma ngati si m'gulu zida kapena kujambula pa, kungakhale kofunika kuti izo mwa kusakaniza.

Natural umber - mtundu, amene analandira kuchokera utoto udzu wobiriwira ndipo cadmium kuwala kofiira, ndi Kuwonjezera wa woyera ndi ultramarine. Mthunzi ali mozama ndi softness.

Kusakaniza mdima wofiira ndi udzu wanthete wobiriwira, mukhoza kupanga mthunzi wokongola wa umber yopsereza. Mtundu osakaniza chakhala chikuoneka zambiri, kuwonjezera pang'ono woyera.

Green umber anakonza powonjezera ku zachilengedwe mtundu wa ozizira mithunzi kapena ofunda a zobiriwira, malingana ndi chimene mukufuna.