油画放久了为什么会变暗变黄

油画放久了为什么会变暗变黄
2024-12-02 05:37:18
推荐回答(5个)
回答1:

油画作品在保存过程中难免会发黄变暗,这是由于表层光油被氧化的结果。

至今还没有一种不会被氧化的光油,清除掉旧光油层重新上光是恢复作品原貌的唯一办法。常用的清洗溶剂有:

1、松节油。对旧油画作用弱,而对新色层作用强,尤其用热水加温后使用效果更佳。

2、精制汽油和苯(甲苯、二甲苯)。对树脂的溶解力比松节油强。

3、乙醇(无水酒精)和甲醇(木醇)。是树脂的强力溶剂。

扩展资料:

画油画的常用工具:

1、根据画家需要,室内画架可以使画幅上下前后移动;折叠式画架用于野外写生。画架又可以和画箱或画桌结合在一起——画箱式画架。

2、室内作画时用来、物品等。专业画桌具备多种功能,有的能能自由移动和调整高度。

3、画凳。室内画凳可调整高度,外出写生用画凳可折叠。还有一种能上能下的梯形画凳,用于绘制大型油画。

4、画伞。外出写生时专用,可以避雨,也可以阻挡阳光直射。专用画伞通常带有固定设置。

5、画笔。有不同的笔型和大小型号,分动物毛和人造毛两类,用于调色和画面着色。

6、画刀。有多种造型。主要用来调色、作画、刮色、清理画板等。

7、调色板。有长方形和椭圆形两种,用于调色及摆置颜料。

8、油壶。用来装调色油、松节油等调和剂。底部装有弹簧片的小油壶可夹在调色板上。

参考资料来源:

百度百科-油画

回答2:

你保存的地方不对

回答3:

氧气氧化、水蒸气

回答4:

氧化了啊,上层光油会好些。

回答5:

变黄的原因:
1、上光油质量不好,要买好的,高质量的上光油使用后不会变黄,或变化很小;
2、涂抹的厚度,过厚,也容易变黄。
油画时间愈久,愈容易变黄,很多文艺复兴时期大师的作品,现在看到的,其实并非完全当初的样子,变黄了。另如伦布朗的《夜巡》,据研究当初画的是白天,时间一久,颜色变暗了,让人误以为黑夜。
不论中国颜料还是进口颜料,只要是油画就一定会随时间推移不同程度的变黄变暗,因为油画的调色剂亚麻仁油接触空气后会不断氧化,变黄,这是正常的变化,所以国外的画家在作画时会很注意减少用油量,国外的颜料厂商在生产时也尽量控制用油,含油越少变黄越不明显,而且熟悉亚麻油特性的画家会在作画时有意将颜色调的偏亮偏冷,留出变黄的余地。中国人创作的油画作品变黄问题格外严重,是因为大部分画家没有控制用油的意识,习惯于想画水粉一样把油当稀释剂去用,而且颜料质量也很差,加上层间处理环节往往根本就没有,所以油画保存过程中问题尤其明显。

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