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I had find many products about AL0304 Adjustable Computer Monitor Mirror with photo & message clip. AL0304 Adjustable Computer Monitor Mirror with photo & message clip Place of Origin: China Guangdong Type: computer accessary Company Info Size (not including bracket): 3-1/2' w x 3-7/8' h Standard on clip: 1-3/4' w x 5/8' h Optional on mirror: 2-1/2' w x 1-3/4' h Imprint Area: (std.) On Clip 1-3/4' w x 5/8' h On Mirror 2-1/2' w x 1-3/4' h Imprint Method: Pad Printed Production Time: 15 business days FOB ShenZhen, China: US$0.42/PC Packing: each into a poly bag, 50pcs/inner box, 500pcs/export carton/0.08CMB Gross Weight: approx. 16kgs/carton MOQ: 10,000pcs Send a message directly to this member Other Products from this Supplier AL0304 Adjustable Computer Monitor Mirror with photo & message clip Place of Origin: China Guangdong T

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Detail of the tip of a gel pen
A gel pen uses ink in which pigment is suspended in a water-based gel. Because the ink is thick and opaque, it shows up more clearly on dark or slick surfaces than the typical inks used in ballpoint or felt tip pens. They can be used for many types of writing and illustration.
The general design of a gel pen is similar to that of a regular rollerball pen, with a barrel containing the writing mechanism and a cap, and a reservoir filled with ink. The barrels can be created in many different sizes and designs; some have finger grips of rubber or plastic. The size of the nib or pen tip ranges from 0.25 mm to 1.5 mm.
Inks
The main advantage of gel ink is its high viscosity or thickness, which supports a higher proportion of pigments in the medium. The pigments are typically copper phthalocyanine and iron oxides, and the gel is made up of water and biopolymers, such as xanthan gum and tragacanth gum, as well as some types of polyacrylate thickeners. The pigments are opaque, and gel pens are available in a rainbow of bright and pastel colours, as well as opalescent, metallic, and glittery colours which show up clearly on dark paper.

Gel pens
Ballpoint pens use a paste ink based on a dye solute in an alcohol solvent. Compared to ballpoint pens, gel pens:
Create a bolder line
Smudge less
Have occasional skips, due to the ball being less evenly coated with ink
Use more ink, leading to more frequent refills or replacements
Fountain pens and liquid-ink rollerball pens use a dye solute in a water-based solvent. Compared to these pens, gel pens:
Are less prone to bleed through to the other side of a piece of paper
Create finer, more controlled lines with fewer blots
Can create white or brightly coloured opaque lines on dark surfaces
Paint markers use an oil-based paint/ink that is very opaque and overlays all other colours beneath it. Compared to paint markers, gel pens:
Are much smaller, with finer tips
Have no odour and do not require shaking to mix pigment with solvent
India ink (based on carbon black pigment) is perhaps the ink closest to gel ink in opacity, although it is usually made with an alcohol and shellac-based binder.
Another trait of gel ink is that it resists common laboratory analysis. The United States Secret Service has maintained the International Ink Library for many decades. Because manufacturers change their ink formulas slightly from year to year, thin-layer chromatography (TLC) can be used on ink from traditional pens to trace the manufacturer and date of manufacture of most inks. The pigments in gel ink do not dissolve, and therefore cannot be analyzed with TLC.
See also
Stylus
References
^ The Last Word: Just for the gel of it
^ LaPorte, Gerald (May 2006). "An Evaluation of Matching Unknown Writing Inks with the United States International Ink Library". Journal of Forensic Science 51 (3): 689. doi:10.1111/j.1556-4029.2006.00144.x.
Categories: Writing instruments | Pens | 2000s fads(and so on)

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