The mystery of glass contaminated fingerprints | future oil spill can not be separated

Hi everybody, I'm glass I, ceramic, metal and plastic are four brothers, now mainstream mobile phones on the market shell All like to take our four when the material.

I and ceramic brother's 'worth' are relatively high, but also more rare move, ceramic big brother itself does not block the signal, the gloss is better than me, holding in his hand moist Jade, than I wrestling, but the difficulty of making it too High, and the yield is also low, and Hammer CEO Luo teacher also said that ceramic easy to scratch.

I am the more common phone material, a lot of high-end models have taken me as a body, first of all I do not block the signal, followed by feel good, but also support fast charge, but my heart is more fragile, I am not resistant to fall, if Please protect me, please.

Metal brother relatively strong, so obstruct the signal, so the metal body phone must have an antenna, but still feel pretty good.

Plastic brother is cheaper, but it does not block the signal, and if it has good craftsmanship, it can be both beautiful and feel good.

I quietly tell you how I came from, hehe.

1. A long, long time ago, some merchants from Arabia purchased a large quantity of nahcolite stones while passing by the West.

2. At that time, the nacrite was used as a raw material for the manufacture of detergents and was sold to some Asian countries.

3. On the way, they have to cross the endless desert. At nightfall, these Arab businessmen are tired and want to stop and take a break.

4. Hard-working Arabs set up simple stoves on the sand with some nahcolites, set fire to a pot, and started cooking. The fire was so intense that it bribed its nodularity with the sand on the ground.

5. A careful Arabian merchant suddenly discovered that a translucent, liquid substance was gradually shedding where the nacreous stones came into contact with the sand.

6. The discovery of the entire Arab caravan was so fruitful that the overall liquidity of the liquid, after it cooled, was crystal clear and sparkling.

It was not until later that everyone realized that the main component of nabatech is trona and the sand contains a lot of silica.

8. Once these two substances in the high temperature environment, there will be a chemical reaction, they have created a new material, this material is my glass friends.

9. It is generally accepted that the first glass was made over the Mesopotamian plain 5,000 years ago (today's Iraq and northern Syria) and that the first glass factory in the world was made over 1500 years ago Built by Egypt.

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Why is the glass easily contaminated with fingerprints?

I admit, the use of glass phone is particularly susceptible to fingerprinting, but the reason can not rely on me! Just like pulling out of the earth is not attractive, not my dirty, but fingerprint brother, every time 'pro 'My time, simply can not keep' clean '! I secretly took a photo of the big brother's fingerprint to show everyone:

Fingerprint surface has tens of thousands of sweat glands, they sweat outward every hour, fingers in contact with the surface of the object, the sweat glands sweat and oil will be attached to the above, will form a fingerprint, plus those who exist in the air small Dust and other substances, by the 'sweat' of this liquid dominance, it is easy to leave a fingerprint on a smooth glass surface.

Glass is very easily contaminated with fingerprints, not only headache for the world's major mobile phone manufacturers, even glass manufacturers, window makers, etc., are making things difficult.

Is it impossible to say that I (glass) and fingerprints can no longer get along in peace, and must be dirty after contact? No! At this moment, the appearance of a substance will allow the fingerprints to contact me and still maintain a relatively clean body. That's it Oleophobic layer

Oil-leaking layer also called sparse Oil coating, AF (Anti Finger Print) anti-fingerprint coating, Is a composite layer material, generally with nano-silica as raw material (SiO 2), the use of spray coating process, forming a coating on the screen surface, with good light transmission and hydrophobic oleophobic now widely used in mobile phone screen The biggest effect is that it is not easy to leave fingerprints, easy to clean.

AF material is a fluorine-containing paint, with very low surface tension, commonly known as perfluoropolyether, the main role is attached to the screen surface, increasing the hydrophobic screen, oil discharge, antifouling properties, is widely used in mobile phones, Flat panels, monitors, SLR's protective glass, often with the screen with electronic products we can always come into contact with this hydrophobic oleophobic effect just like drops of water on the lotus leaf.

Mobile phone factory will be in a vacuum under the environment made of a layer of oleophobic, its role has also said above, is the phone screen smooth, easy to dirty, less fingerprint residue.

It is noteworthy that the long-term use of oleophobic will be exhausted, the finger due to long-term exposure, resulting in thinning of the oleaginous layer, loss of oleophobic function, the use of the future will be more likely to collect fingerprints, the operation will have Feeling frustrated, more affect the touch screen touch, and the commonly used solution is the film.

For the current technology available, the front screen does not prevent the appearance of fingerprints from the glass itself. Because most of the front screen is the original glass or ultra-thin glass float glass, flatness is better, it is difficult to do without fingerprints. Accordingly, the rough surface, such as frosted glass so easy to contaminated fingerprints, I give The suggestion is that in the future, a "pollen" from the pollen club will be made in 2016 if it can be made of frosted glass to create the back case of the double-sided glass phone.

Although there are many plating anti-fingerprint film on the market, super-electroplating anti-fingerprint toughened film, anti-fingerprint technology, nano anti-fingerprint, but in the anti-fingerprint effect is still somewhat unsatisfactory. The development of oleophobic.

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The development of oleophobic horizon is still a bottleneck

At present, the oleophobic layer is still in its development stage. Cytonix, a foreign manufacturer of oleophobic coatings, has made comparative studies on the oleophobic layer and has a special patent on the oleophobic layer process. After a rough review, I found several important indicators of the future development of the oleophobic layer:

The future of the oleophobic layer, should be used are nano-coating, covalently bonded to the thickness of less than 10 nm has been achieved, the smaller means that transparency is better.

At Cytonix, the most expensive oleophobic coating sold on the FluorAcryl 7298 is priced at $ 99, using UV-curable materials and containing fluorinated acrylates. The anti-fingerprint effect of this product is better, so We suspect that the future 'higher' oleophobic will also be the use of UV-curable materials, and contain fluorinated acrylate material.

In addition, the evaluation criteria for the oleophobic layer include surface energy, refractive index, deionized water detachment angle, MEK resistance, pencil hardness, etc., although all belong to more professional terms, but from which we also understand the more extensive oil-layer Development prospects, I believe the future will certainly be able to achieve, finger touch glass 'zero fingerprint' scenario.

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For now, the gradual approach of the 5G era, in order to high value and strong signal reception capabilities, the glass material is the future development trend of the mobile phone industry, 'easy fingerprints' the phenomenon of the major manufacturers will pay more attention to For the time being, the only way to prevent fingerprints is to upgrade the oleophobic process. Perhaps in the future, the feature of 'non-stick fingerprinting' will become a big selling point in many glass-based mobile phones.

This article belongs to the original article, if reprinted, please indicate the source: the mystery of the glass contaminated fingerprints can not do without future oil layer http://mobile.zol.com.cn/677/6776002.html