You should know that the longer the label is stuck, the harder it is removed it from the surface.
First, you should try to peel the sticker off gently. But if it is hard to do it, take a hair dryer turn it on and hold it for 30 seconds to a few centimeters of the label. The heat softens the glue and facilitate the whole process of removing it from the surface. Then, take the top of the label and make sure it is detached. If it seems hard to be done, repeat the procedure with the hair dryer again. Repeat it a few times if needed. This is a procedure that can help you remove the glue completely. You just need to have patience and do it slowly.
When you peel the sticker off with your fingers usepencil eraser to remove its residue if possible.
Apply cooking oil on the residual paper and gluewith a tissue and let it soak for a few minutes. Then remove the remnants of paper and gluewith your fingers or a plastic knife.
To regain its luster and beauty, artistic images need to be properly stored and maintained. They should not be exposed to the direct influence of sunlight, moisture or strong artificial light. Do not hang them next to heaters, heat pipes and other sources of heat, and lights.
Dust should be removed with very gentle and soft brush from the paintings painted with oil on canvas. The brush used for this process should be dry and clean. If the brush is not clean and oily, the dust will only be rubbed into the painting. You need to be very careful with these paintings because they can be damaged very easily. Use only products that are good for the painting.
Dust from paintings made with watercolor technique can be removed by gently rubbing with a small ball made of bread. So what you need to do is take a small piece of bread and roll it into a ball. Then rub the dust down, without damaging the paint and paper. Then use a soft brush to remove the remnants of bread crumbs. This is one of the best way to clean this type of paintings without damaging them.
When it comes to wood paintings you can clean them from dust by using a damp cloth dipped in hot water and detergent, and can then wipe them with gentle movements to remove any stains.
Finally, in order to maintain all paintings of great value you need to have a conversation with the expert – restorer.