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COATING PROCESS GUIDECHOOSE THE OPTIONS AND PERFORMANCE YOU WANT
Optical Manufacturing Solutions.
Hard Coating - scratch resistance Lens
AR Coating Stackoptical properties (transmission, selective light filtering); scratch resistance
Top Coat repels oil; easy cleaning
WHAT DOES IT TAKE?
The performance and durability of an ophthal-mic lens is largely determined by the applied coating package. Satisloh offers a wide variety of durable hard coatings, innovative AR coating stacks, and state-of-the-art top coating solu-tions. This allows us to meet the needs of every production environment and every customer. The combination of these three components af-fects cost, process complexity and performance of the coating package and must match lab and customer requirements.
Beyond regular AR coating stacks, customers can select specialty coatings that protect from UV radiation and harmful Blue Light as well as multiple mirror and in-chamber tinting coatings.
No matter which processes are chosen, Satis-loh’s expansive knowledge regarding equip-ment, processes, and matching consumables ensures the ultimate in coating quality.
HARD COAT + AR STACK + TOP COAT = AR LENSES YOU WANT
DECISION #1: HARD COATING
Leading scratch resistance technology.Choosing the right hard coating is key for optimal AR coating performance. Satisloh provides perfectly matching hard coatings to achieve highest AR adhesion and scratch resistance.
THERMAL DIP COATING
Dip coating is the right choice for labs that need to coat both sides of uncoated lenses and expect maximum scratch resis-tance and uniform performance on front and back.
It is the most economical solution for high volumelabs that are able to coat in batches.
Spin Coating is the right choice for labs that want less complex production and a low investment with the highest process speed and the option to fully automate their hard coating process.
Using the new solvent based, non-tintable chemistry, labs can achieve extremely high scratch-resistance previously not possible with spin coating technology.
Spin CoatingAll Solids
Spin CoatingSolvent Based Dip Coating
Scratch Resistance ●●●○○ ●●●●○ ●●●●●
Tintability ●●●●○ ●●○○○ 1) ○○○○○1)
Index Match ●●○○○ ●●○○○ ●●●●○
Cycle Time 45-60 seconds 45-60 seconds 2-3 hours
Process Type Single piece flow Single piece flow Batch
Lacquer cost $$ $$$ $-$$$$ 2)
Investment (facility & equipment) $ $ $$$$
1) substrate can be tinted prior to hard coating2) volume dependent
HARD COATING PROCESSES
UV SPIN COATING
Hard CoatingLens
Adhesion Layer
AR Coating Stack
Antistatic LayerHydrophobic Topcoat
Legend of coating layers Example for all possible Coatings
Premium Performance Classic Multicote X
Lens material Organic Organic / Glass Organic Glass
Bayer value 1) 7-12 5-7 2-5 N/A
Anti-static layer Yes No No No
Cycle Time 25-45 min 23-43 min 27-29 min 51 min
Machines 1200-DLX-2MC-380-XMC-280-X
1200-DLX-2MC-380-XMC-280-X
1200-DLX-2MC-380-X
1200-DLX-2MC-380-XMC-280-X
1)AbrasionresistanceasdefinedbyBayerRatio.ValidONLYforfreshlyARcoatedlenseswithSatislohlacquerDT1500orDN1601(BayerRatio≥3)
* Satisloh‘s most advanced AR coating stack „Ultimate“ is available in the Ultimate coating package as described on page 7/8
STANDARD AR COATING PROCESSES*
Cutting-edge vacuum technology.Satisloh has 50 years of experience developing AR coating stack designs. With increasing sophistication and control-lability of vacuum chambers, it was possible to develop new and unique coatings with specific hardness, residual reflection, transmission, and other performance attributes.
DECISION #2: AR STACK
SPECIALIZED COATING STACKS
MIRROR COATING PROCESSES
Spectraflex X / -UV
• Dielectric mirror coating - Reflection colors: blue, red, orange, violet, green, silver, gold. - Solid mirrors, gradient mirrors, bi-color mirrors with sharp or gradient transitions. - Custom colors and custom color combinations possible.
• UV version: front side Spectraflex; back side Protect -UV. Highly recommended for sunglasses because of dilated pupils of the sunglass wearer.
Available for 1200-DLX-2, MC-380-X and MC-280-X
• Organic and mineral lenses - Brown solid - Brown gradient - Grey solid - Grey gradient
• Mineral lenses only - Green solid
Various absorption levels available
Available for 1200-DLX-2, MC-380-X and MC-280-X
Protect-Blue Protect-UV Protect-Complete
Lens type Organic lenses (clear)
Organic lenses (clear and photochromic)
Organic lenses (clear and photochromic)
Benefits Front side Blue Light protection. Reduces negative effects from tablets, smartphones, LED TVs, monitors, etc.
Back side UV protection Front side Blue Light protection. Back side UV protection.
Available for 1200-DLX-2, MC-380-X and MC-280-X.
IN CHAMBER TINTING PROCESSES
HydrophobicWhen the first easy-care top coatings were introduced, they were referred to as hydrophobic top coatings. Hydro-phobic literally means “water-repellent”. The quality of a hydrophobic top coating is measured by the contact angle of a water drop on a lens. A higher contact angle (round-ness of the drop of water) indicates better hydrophobicity. Traditionally, hydrophobic coatings have water contact angles between 97-104°.
Super HydrophobicSuper hydrophobic top coatings have water contact anglesover 106°.
Super Hydro/OleophobicThe newest generation of top coatings has water contactangles over 110°, but even more importantly, also repels oil for example from human skin / fingerprints. This pro-perty is referred to as oleophobicity and ismeasured by the Dynamic Oil Contact Angle.
Cleanvac/AulonTraditional hydrophobic material with a water contact angleof 100 - 110°
SatinSuper hydrophobic/oleophobic material with a water contactangle 110 - 118° for maximum ease of cleaning.
All Satisloh top coating materials can be applied directly inside the AR vacuum chamber or in a separate vacuum chamber.
In addition, Satisloh offers convenient and cost efficient hydrophobic wipe-on solutions.
Phased Hydrophobic System: Grip*A sacrificial overcoat is applied on top of Satin. It solves the slippage problem and provides unmatched yields for edging super-hydrophobic lenses. Grip can be wiped off after edging.
* Grip is not available in all countries
TOP COATING OPTIONS SATISLOH TOP COATINGS
Ease-of-cleaning is one of the most important features of AR coated lenses for consumers. An AR without top coat-ing is rough and hydrophilic: attracting dirt and water it is difficult to clean. There are a number of options available to make AR coating easier to clean than ever before. Spe-cial chemicals are applied on top of the AR coating inside a vacuum chamber.
DECISION #3: TOP COATINGS
Adhesion Layer
AR Coating Stack
Weak BondSatin
Grip
Hard CoatingLens
Surface under Test
Contact Angle
SATISLOH ULTIMATE - OUR BEST COATING PACKAGE Combines our highest performing hard, AR, and hydropho-bic coatings for the best of all worlds.
Best Satisloh Hard Coating• DT1500 or DN1601 dip coating or U900 back side spin
coating (with approved front side factory HC)*• Specially developed for Ultimate AR stack• Available for all other Satisloh AR coatings as well• Available for most lens materials (CR39, high index,
polycarbonate)
+ Revolutionary AR Coating Stack • Ultimate high performance AR Stack • Requires DT1500, DN1601 or U900 (with approved front
side factory HC)*
+ Completely new way of applying hydrophobic coating• Satin super-hydrophobic with special Extended Life (EL)
treatment
*Additional hard coatings can be evaluated and approved by Satisloh via field acceptance protocol.
Highest Possible Abrasion Resistance
Our best hard coating plus newest AR stack plus best super hydrophobic means unequaled Bayer >12. Abrasion resis-tance exceeds the market benchmark by more than 50%. This outstanding hardness does not affect other coating charac-teristics such as thermal shock stability and environmental durability.
Antistatic
Antistatic property repels particles and dust, reducing the need for cleaning.
Easiest lenses to clean with highest contact angle and extended life
Satin’s ease of cleaning significantly exceeds the market benchmark as evidenced by the dynamic contact angle mea-surement. Special Extended Life (EL) treatment means that the hydrophobic layer remains effective much longer than the market benchmark, i.e. after a significantly larger number of dry wipe cleaning cycles (see graph “Slipperiness”).
Abra
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SatislohBenchmark
ABRASION RESISTANCEANTISTATIC
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20
40
60
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Stat
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CR39 AR Process Ultimate Process2000 4000 6000 8000 10000
No. of Strokes
Cont
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SatislohBenchmark
SLIPPERINESS OVER TIME
Sales ServicePhone: +1 262 255 6001 +1 262 255 6001Email: info.usa@satisloh.com service.usa@satisloh.comPhone: +49 (0) 6441 912 0 +49 (0) 6441 912 222Email: info.de@satisloh.com service.de@satisloh.comPhone: +852 27 56 7711 +852 27 56 7654Email: info.asia@satisloh.com service.asia@satisloh.comPhone: +55 (24) 2233 8600 +55 (24) 2233 8686Email: info.latam@satisloh.com servicio.latam@satisloh.com
© Satisloh / KH / Septem
ber 2019Subject to technical changes
Satisloh AGNeuhofstrasse 12CH - 6340 BaarSwitzerlandPhone: +41 (0) 41766 16 16Mail: info@satisloh.com
www.satisloh.com
North America
Europe
Asia
Middle & South America
CONTACT
SATISLOH ULTIMATE - OUR BEST COATING PACKAGE
Satisloh or Approved Factory Hard CoatingLensSatisloh Hard Coating
Adhesion Layer
AR Coating Stack
Strong Bond Feature (EL)Antistatic Layer
Satin Topcoat
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