Er word van een andere inkt gebruikt die geschikt is voor dvd/cd.
Het hecht beter (een cd is ander materiaal dan papier) en tast inderdaad de cd niet aan.
Het kan heel goed dat een andere stift de cd ook niet aantast maar er kunnen stoffen in zitten die de cd aantasten.
En hoezo kan je met google niets vinden?
Eerst zoekterm die ik probeer is gelijk al raak (Why use cd markerer):
http://www.google.com/sea...why+use+cd+marker&spell=1
4e hit:
http://www.circuitcity.co...cd/productDetailReview.do
The entire point to these markers is the ink. The ink won't damage the cd/dvd film like other markers will over time. A sharpie or other normal use marker will eventually destroy the film and make it useless. This is due to a chemical reaction with the ink and the film. Trust me, I have seen it happen
. Great value for 4 markers that are safe to use.
Kijk je iets verder dan vind je dit:
http://lowendmac.com/lab/03/0114.html
http://www.opticalmediaco...p/exe/cms/name/cdlabeling
Dit heb ik uit de google-cache gehaalt aangezien de link dood is:
It is really important. Regular markers may contain lacquers that can damage the disc and make it unusable. What most people do not know is that using markers, such as Sharpies, ballpoint pens, or any other sharp object can be very damaging to the media. Most markers contain chemicals that create oxidation, which can deteriorate the CD or DVD. The oxidation can ruin the aluminum, which covers the surface of the media and ultimately can destroy the data on the disc. Additionally, these types of markers can damage the physical structure of the disc.
Van een andere site:
It's the solvent based markers you need to avoid. Alcohol based are just fine, i.e; Sharpie pens are great.
Isopropyl will not harm CDR's, but Ethanol might and Methanol will melt them right away. I'm not aware of any markers that use anything other than isopropyl.
If you're not sure, just write on some clear plastic, like a CDR cakebox, then if you can remove the mark with isopropyl, then it's an alcohol based marker.
En deze geweldige PDF:
http://www.itl.nist.gov/d...DCareandHandlingGuide.pdf bevat de volgende tekst:
5.2.5 Marking
Marking and labeling a CD or DVD is an essential process in its creation.
CDs and DVDs, or their containers, are labeled in some form or fashion so that they can be identified and organized. When labeling
a CD with markers, the composition of the ink in the marker and the style or design of the marker should be considered.
The inks in markers vary in chemical composition and are formed from pigments or dyes, and solvents. Inks are divided into three basic categories according to the type of solvent used: water-based, alcohol-based, and aromatic solvent-based. Within these categories,
inks are further divided according to their permanence and their application to different surfaces.
Markers themselves also vary in form: there are fine-point, extra
22 Fred R. Byers fi ne-point, rolling-ball, ballpoint, soft felt-tip, and chisel-tip. Some
are ideal for CD labeling; others can cause damage.
Numerous CD vendors have noted that the thin protective
lacquer coating can deteriorate from contact with certain solvents
in markers. To eliminate the risk, water-based markers are recom-
mended for CD labeling. As a solvent, alcohol is generally less
damaging than xylene and toluene, which are common in aromatic
solvent-based markers. According to anecdotal reports, alcohol-
based markers can be used to label CDs without causing perfor-
mance problems. However, there are no explicit lab test results
to show what effect solvents in markers have on different CDs or
DVDs, particularly over the long term.
The vulnerability of the metal in CDs, because of its proximity
to the surface, should be considered when choosing a marker. The
metal is particularly susceptible to damage from scratches, scrapes,
or denting caused by surface marking. A felt tip marker will mini-
mize the risk of scratching or denting.
As mentioned before, CDs and DVDs look similar, but their
layer structures differ. The recording layer of a CD is located just
beneath the labeling side. On a DVD, the recording layer is in the
center of the disc. In theory, solvents from a solvent-based marker
will not penetrate to the center of a DVD through the polycarbon-
ate layer on both sides of the disc. Consequently, the data and met-
al layers in the center, in theory, should not come in contact with
any harmful solvents. Nevertheless, the same precautions taken in
labeling CDs are advisable for DVDs. The marker used to label a
CD will work just as well on a DVD. Restricting oneself to the CDsafe
marker will also eliminate the potential for mix-ups in the use
of distinctive CD or DVD markers.
Many vendors sell CD-safe markers, and they vary in ink solution.
They should not contain any solvents harmful to CDs or
DVDs but should have a permanent quality. For risk-free labeling
of any disc, it is best to mark the clear inner hub or the so-called
mirror band of the disc, where there are no data (see Figure 12).
Ik kan nog wel een half uur doorgaan maar het is wel duidelijk zo dacht ik?
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