Офорт как авторская техника получения оттиска
19 февраля 2016, 12:09
Просмотров: 6514
))))))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
Wilfred 16.11.2020 03:08 I like watching football is prescription ibuprofen the same as advil Fein added that Edward Snowden’s Russian attorney said “he’s safe” and “obviously is exhausted. But he’s now needing a period of time where he can recoup his energy level and reflect on what he wishes to do going forward.”
Leonard 16.11.2020 03:08 Get a job gat pmp peak muscle performance review "From this point on, I don't care what the situation may be, I don't care what the outcome is," an emotional Rolle said. "I don't care what the hell has to happen. If they want to kick me up from around here, from the New York Giants, then that's gonna be what has to happen. But I'm gonna play Antrel Rolle ball the way I know how to play Antrel Rolle ball, and I'm gonna lead the way I know how to lead.
Mishel 16.11.2020 03:08 What's the interest rate on this account? kamagra gel apoteka beograd
"We are obviously looking for answers as to why this has happened, particularly as our understanding was that 3,500 additional colonoscopies were to be carried out before the end of 2011 under the initiative, and that the three month waiting time would have been dealt with by now."
Rafael 16.11.2020 03:08 Could you tell me the number for ? reviance portland President Barack Obama has little doubt of Liby'sinvolvement in plots against Americans. The Libyan is accused inthe 1998 bombings of the U.S. embassies in Kenya and Tanzaniathat killed 224 civilians.
Tommy 16.11.2020 03:57 Your account's overdrawn levothyroxine nausea Just 15 minutes into his remarks, Cruz attempted to draw an analogy between politics and the world of wrestling, saying, “It’s a little bit like the World Wrestling Federation. It’s wrestling matches where … the outcome is pre-rigged, the outcome is predetermined. They know who’s going to win and it’s all for show.”
Jessie 16.11.2020 03:57 Until August can i use voltarol with ibuprofen While its inventors believe “rubbish mining” could lead to a new form of gold rush, the technology has drawn criticism from environmental organisations such as Greenpeace. The group points out that instead of encouraging people to produce less waste, the technology does just the opposite. The heavy investments required to build the new processing plants are simply not justified, says Greenpeace.
Rachel 16.11.2020 03:57 We'll need to take up references priligy generico funziona Andy Murray is capable of winning all four Grand Slam titles in one season, according to tennis great Rod Laver.Murray won his second Grand Slam title in less than a year when he beat Novak Djokovic in the Wimbledon final earlier this month, and now the Scot will set his sights on successfully def...
Charley 16.11.2020 03:57 I like it a lot minoxidil finasteride resultados Obama told The Associated Press in an interview Friday he would be willing to negotiate with Republicans on health care, deficit reduction and spending â but only if Boehner allows votes to reopen the government and increase the nation's borrowing limit.
Charlotte 16.11.2020 03:57 Remove card virility max side effects WASHINGTON, Sept 18 (Reuters) - Republicans in the House ofRepresentatives set in motion on Wednesday a plan thatultimately could avert a federal government shutdown on Oct. 1,turning a later battle over the debt ceiling into the main eventin the conservative struggle against President Barack Obama'shealthcare program.
Bernardo 16.11.2020 21:10 I have my own business buy levitra
While most students wait until the summer to do work experience, there are earlier options: some employers offer mini “spring break” internships and begin interviewing for these as early as the end of the first term. Universities themselves employ students as ambassadors or department assistants – roles that might be easier to manage than fixed-hours, part-time work.
Robby 16.11.2020 21:10 Do you know the address? buy viagra "He's been supportive, just saying keep grinding," Manning said. "Football is a crazy game and that's just a part of it. Over the years, we've talked about how you've got to cherish each win because they are well-earned and you've got to fight for each one and it's tough.
Emma 16.11.2020 21:10 I can't get a dialling tone buy viagra Scott Peloso, managing director at Jefferies Finance LLC andpanelist, said there is a general acceptance of more traditionalhigh-yield terms in the syndicated bank loan market due to thelarger percentage of cross-over investors into the asset class.
Diana 17.11.2020 00:06 Best Site good looking best rx promotions You cannot see these super-stars (known as O-type stars) in this image, but if you could, they would be far off to the right, and they would be joined by 500 less bright, but still luminous, stars. Together these stars make up the Cygnus OB2 association, according to a Hubble news release.
Duncan 17.11.2020 00:06 I've got a full-time job quality meds delivery âYou had two extraordinarily gifted people with great political skills, particularly President Obama,â Clinton said. âHeâd been in more races than Hillary had, by far. Her first primary election in her life was the presidential primary of 2008 ⦠That was a one-off, exciting thing. That may never, we may never see anything like that again in our life.â
Merrill 17.11.2020 00:06 Free medical insurance usa medical supply Again, the Seahawks moved downfield, going 72 yards in 11 plays, Wilson throwing 15 yards to Miller and Seattle led 14-0. A strong defensive stand helped turn things around temporarily for the Cardinals. Seattle had it second-and-1 at its 43 but failed to get the first down on three straight runs. On fourth-and-inches, Wilson tried a sneak but was tackled by Calais Campbell well short of the marker.
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
676 7
Саржин Яр: красота и мистика
26 декабря 2021, 12:58
669 0
Подземный Харьков
06 ноября 2021, 10:50
725 0
Гора Жевахова: загадочное место
07 августа 2021, 10:46
758 2
Зеленый театр
24 июля 2021, 14:07
2360 170
Долина привидений
10 июля 2021, 09:29
22976 5376
Аномальная зона: поляна Громовище
27 июня 2021, 09:12
9323 4
Подводные пирамиды Йонагуни
19 июня 2021, 09:26
9382 7