Outlines.
Do u mean what is a 3 round liner tattoo needle used for? The 3 represents how many needles total, and round means they are arranged in a circle as opposed to lined up beside one another, liner means it is used for making lines. A 3RL is most commonly used for tattooing very fine lines in small or very detailed tattoos or lettering.
No, a tattoo needle should not be thrown away once it has been used. In order to save money, many tattoo salon clean it by sterilizing it to remove bacteria. Yes a tattoo needle should be thrown away as should any used needle. Do not allow anyone to perform work on you with a used needle.
A three round liner or five round liner (3RL or 5RL) is the most common but it does depend on the look you are after and the overall effect it has on the tattoo, the colours involved, the shading in the colours if any etc. One liners are also available and used for super fine lines like in portrait eyelashes etc. For tribals and the like it won't matter too much but better with a 5RL so that you can use it to fill the corners before you begin with the shader.
It is used for outlining a fair sized tattoo that is not too big or small. If the body or piece is very big, for example a big customer then you should use a 4-7 round liner.
In almost all instances, one uses a 3RL, or perhaps a 7RL. All depends on the artist and the size of the piece.
You can't. You get it from the needle not the tatoo.
No. Just NO. It is no where near the same.
Not usually. A "round" needle is actually a group of needles welded together. An outlining needle is one needle. If you outlined with a shading needle you'd get a very thick line. If the piece has real thick outlines, you could use a shading needle to do them, but most tattoos have thin outlines. This would be what you call lack of knowledge see me myself i have used up to an eighteen round liner (18 RL) the difference is the configuration where a liner is set so that the tips of the needles are clustered in a tight round configuration the shader's are a little more spread out , and to answer your question you could use a shader to line with but your line would be foggy or blurry because you points are spread to far apart
No. The only way you can get HIV is if you used a needle by someone who has the virus.
Liners are grouped in a circular pattern which gives them their nickname, rounds. Used mostly for outlining tattoos, liners come in as small as a single needles and can generally reach up to an 18 round. Single needles are rarely used by most tattoo artists, except occasionally for very fine line work. The most common groupings for liner needles include 3, 4, 5 and 7, but you can also find needles grouped in 8, 9, 11, 13, 14, 15 and 18, and some suppliers even offer a 19 and 20.
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The application of a tattoo requires a needle to be inserted into the skin. This needle use has the potential to spread bloodborne pathogens like HIV or hepatitis if the person giving the tattoo has not used appropriate infection control procedures.