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OIL PASTEL
Material : natural wax, synthesis materials, pigments
Manufacturing process
① Mixing : Mix raw materials such as wax and pigments using the mixer and roller.
② Molding : Pour the mixed material into the molding machine to produce the shape of hexagon, circle, etc.
③ Paper wrapping : Wrap paper so that oil pastel does not stick to your hands.
④ Packing : Arrange and pack the color sets such as 12, 18, 24 etc. Colors in of plastic or paper case.
What is good oil pastel?
① Safety : The raw materials should be safe and non-toxic to the human body according to the international safety
standard such ad European 「CE」, American 「AP」, Korea 「KC」, etc.
② Color : The color should be bright and clear. Mixed colors should not be muddy.
③ Ingredients : It should stretch well and painted softly.
④ Hardness : When painting, it should not be easily broken.
⑤ Bleaching : The surface should contain original colors, not turning into white("Bleaching") even after months
of production.
How to use
① Mixing : Apply a dark color first and then paint a bright color on it in order to make mixed colors.
② Scratching : Apply a bright color first as the background.
Then paint a black color on it. Then scratch the surface with a sharp tip of a plastic scraper.
③ Watercolor technique : Draw a sketch with oil pastel and then paint with watercolor on it.
The sketch lines will give the effect of repelling the paint.
ETC
① Origin of oil pastel
Oil pastel are made for easier and stronger application of the colors on rough surface.
② The difference between OIL PASTEL and CRAYON
Crayons are a mixture of paraffin wax with pigments, and it is harder and stretch less than oil pastel.
Crayons are more suitable for very young children who learn the first picture because they are used to draw lines and less likely to stick hands.
Oil pastels are softer/sticker and have stronger colors therefore more suitable for surface painting and
used after experiencing crayons. It's necessary to wash your hands after use because of colors are
easily stick to hands.
③ If a child sucks or eats oil pastel.
Oil pastel, crayon are basically made using non-toxic materials because oil pastel, crayon are used by
children. Therefore, when they suck or eat a very small amount, It's basically not critical to human body.
But, since it's not a food, it still should not be sucked or eaten. If it is eaten in some quantities, it is advised to see/consult with a doctor.
④ Non-toxic label
The non-toxic label is a indication/translation of Non toxic in English, which indicates that it is harmless to the human body even when ingested in a small amount.
All oil pastel marketed in Korea are obliged to carry out heavy metal inspections from 2005 and
to display the inspection marks. Heavy metals exist even in the air and food. The non-toxic label is the
indication that the level of heavy metal substance is below the inspection standard value.
⑤ CE mark
CE (Conformitee Europeenne) is a mark that indicates the products that meet the European standards
(Toys, Textiles EN71-Part 3) for health and safety environment in Europe.
The content of heavy metals should be below the standard value.
⑥ AP mark
AP (Art and Creative Material Institute) mark of United Stated on art materials indicates that the product is safe for children's use. The product should be non toxic and safe to the human body even when ingested in a small amount. ACMI controls and allows AP certified products to attach Non Toxic marks.
Watercolors
Raw materials : glycerin, synthetics, water, pigment
Manufacturing process
① Rolling : The pigment is ground and crushed into fine particles.
② Blending : Place raw materials in a mixing bowl and mix.
③ Filling : Put the completed paint into the tube and close the cap.
What is good watercolors?
① Safety : Made of non-toxic materials, and even when sucked or ingested in a small amount,
there should be no harm to the human body.
② Color : The color should be bright and clear.
③ Separation : There should be no separation of raw materials when being used.
④ Solidification : The paints should not dry or harden before use.
Pencil sharpener
History
In 1884 W.E Sibley invented the first practical pencil sharpener.
And many others invented different types of pencil sharpeners.
Among them, John Lee Love's invention of pencil grinding mechanism in
1897 is regarded as the origin of modern pencil sharpeners.
In 1910, the Chicago pencil sharpener company created two
pencil sharpeners that had two blades. (held spirally on a
single column)
Since then, the pencil sharpener has become indispensible
tool for pencil writing.
Nowadays pencil sharpeners almost completely replaced the
traditional knife-sharpening.
Blade (also called "Cutter")
The life of a pencil sharpener is dependent on how long a blade can be used.
Korean KS standards is more the 5000 pencil-sharpening rotations.
The blades of TITI's "SHAPA" series pencil sharpeners are made from special steel of the exceptional strength and are used for a long period of time.
How to use
When you sharpen colored pencils or 4B (or thicker) pencils, the pencil sharpener may get stuck.
In this case, it is necessary to take out the blade assembly and pull out pencil lead stuck inside.
If you use a poor quality pencils, the pencil lead may contain a lot of stone powder which causes paper scratch and shorten the life of the blade.
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