Офорт как авторская техника получения оттиска
19 февраля 2016, 12:09
Просмотров: 6542
))))))128897.jpg)
Художественная техника офорта представляет собой гравюру на металле, для которой углубленные элементы печатной формы создаются путем травления металла кислотами. В дословном переводе с французского «L’eau-forte» означает «крепкая вода» — так раньше называлась азотная кислота, употребляемая для травления металла.
Процесс создания офорта довольно длительный и сложный. На цинковую или медную пластину наносят кислотоупорный лак. Офортной иглой или другим инструментом процарапывают слой лака по линиям будущего изображения до металла, после чего пластину помещают в травящий раствор.
Травление можно производить в несколько приемов. После первого травления в местах, где лак отсутствовал, образуются незначительные углубления. Затем места, которые соответствуют светлым участкам изображения, вновь покрывают лаком и вторично подвергают травлению, углубляя печатающие элементы. Таким образом, за несколько травлений получают желаемую градацию тонов. Для печати краска закатывается в углубления, ее избыток снимается с ровной поверхности; под действием давления краска переходит на бумагу. В случае необходимости рисунок дополняют повторным травлением или механическим гравированием.
Чаще всего офорт делается в черно-белых тонах, реже – в цвете. В итоге получается своеобразная и интересная картина, которую повторить практически невозможно (если только нет оригинала доски, с которой делается оттиск).
Комментарии
Emory 17.11.2020 05:16 I'm a housewife cytosport monster milk t shirt We're not sure if that's a totally accurate description, but we are sure there's room for more competition and that nobody has yet succeeded in substantially driving down the cost of college. Now that you know how to manage your student debt, maybe it will be you.
Marshall 17.11.2020 05:16 I didn't go to university meloxicam and grapefruit juice In particular, Stanton wanted to measure the currents flowing right under the ice sheet. He wanted to test how salty the water was, and to find out how quickly the ice was being eaten away by the comparatively warm seawater. They also grabbed a sample of the mud from the seafloor below.
Jarred 17.11.2020 05:20 Gloomy tales sildamax nextday Paddy Power has more than 4,000 employees, including researchers who dug deep before giving logical parameters for Twitter's first day value, said Féilim Mac An Iomaire, public relations manager for Paddy Power.
Miguel 17.11.2020 05:20 I came here to study clotrimazole betamethasone cream for yeast infection The national rate declined to 58.3 percent in 2010 from 64.5 percent in 1979, according to the report from the National Center for Health Statistics. The tally excludes many circumcisions, including those performed in other places such as religious institutions and those performed later in life.
Elliot 17.11.2020 05:20 Could I borrow your phone, please? amoxicillin 875 mg twice a day for uti New Jersey's civil union law was ripe for a challengebecause the state's Supreme Court ruled in 2006 that same-sexcouples were entitled to the same rights as heterosexual marriedcouples. That led the Legislature to create civil unions as away of ensuring equal treatment.
Oliver 17.11.2020 05:20 I do some voluntary work where can i buy kamagra in glasgow In separate proceedings, five other employees of the Italian cruise company, Costa Concordia SpA, were allowed to make plea bargains in exchange for lenient sentences. But a Florence prosecutor this week challenged those sentences, and Italy's highest criminal court will eventually rule on that.
Antoine 17.11.2020 05:20 Get a job is fluticasone propionate gluten free The advertisement technology company was valued at more than$2 billion on its market debut, a day after it priced its IPO atthe top end of its revised price range. The company, whichdelivers Web-based video advertisements raised $116 million inthe offering.
Leah 17.11.2020 05:39 I don't know what I want to do after university buy tretinoin “As Peruvians we support the armed forces and the US to fight the narco-terrorists, but we have never given permission for this war to happen on our land,” says Kecizate Atahualpa Capac, an indigenous Ashaninka activist from Otari, worried about the impending conflict.
Dorsey 17.11.2020 05:39 I'd like , please can you take tylenol pm with naproxen sodium It discussed the idea of using troops for this purpose, but warned: "The law-and-order problems of coping with pickets not just at the power stations but also at the pitheads would be enormous and would arise from the very outset of the strike.
Korey 17.11.2020 05:39 Do you know the number for ? atorvastatin 40mg Lilo burst onto the scene in 1998 when she starred as identical twins in "The Parent Trap" remake. With her bright red hair and adorable freckles, not to mention her impressive dual performance (for which she won a Young Artist Award), the bubbly 12-year-old quickly rose to child star status ...
Barbera 17.11.2020 05:39 Will I be paid weekly or monthly? telmisartan 40 mg precio farmacia similares "These include the ways in which medicines are developed, doctors' prescribing habits, the ways in which "repeat" medicines are ordered, and of course patients' understanding of the importance of taking medicines as prescribed and ensuring they only order what they need," she said.
Jozef 17.11.2020 05:39 Can I take your number? medicamento aleve para que sirve An impasse over spending and raising the nationâs borrowinglimit led to a partial shutdown of U.S. government operationsthis month, as Republicans in Congress fought with Democratsover paring back Obamacare. The resulting turmoil rockedequities and pushed prices higher in the $4.1 trillion marketfor federal debt. That may lower earnings in the securitiesindustry, which helps drive the cityâs economy, DiNapoli said.
Barney 17.11.2020 06:23 How do you spell that? artane 2mg l thuc g Canadian Prime Minister Stephen Harper said in a statement, "I am certain that Ms. Munro's tremendous body of work and this premier accomplishment will serve to inspire Canadian writers of all ranks to pursue literary excellence and their passion for the written word."
Jocelyn 17.11.2020 06:23 I've only just arrived chlorpromazine 100mg tab price Tuesday was the deadline for companies to register for theauction, which begins Jan. 14. Moore declined to say whether anynew foreign companies had signed up, noting his department wouldput out the list next Monday.
Charlotte 17.11.2020 06:23 Have you got a telephone directory? trazodone no prescription "I came here thinking that I probably should [try the testicles] but wasn't sure if I'd have the guts when it came down to it," she said. "I watched a lot of people eat them and everybody seemed to be okay after eating them."
Оставить комментарий
в этом блоге
06 мая 2022, 14:35
942 3
Новые изменения в Налоговый кодекс могут усложнить ведение бизнеса
07 января 2022, 19:52
678 7
Саржин Яр: красота и мистика
26 декабря 2021, 12:58
669 0
Подземный Харьков
06 ноября 2021, 10:50
726 0
Гора Жевахова: загадочное место
07 августа 2021, 10:46
758 2
Зеленый театр
24 июля 2021, 14:07
2361 170
Долина привидений
10 июля 2021, 09:29
23048 5399
Аномальная зона: поляна Громовище
27 июня 2021, 09:12
9367 4
Подводные пирамиды Йонагуни
19 июня 2021, 09:26
9425 7