22.01.2014
Set up in 2009, WER has become one of the most reliable manufacturer of printing ink in China. Blowing Agents Market by Type (HCFCs, HFCs, HCs, & Others), by Foam Type (PU, PS, Phenolic, Polyolefin, & Others) & Geography - Trends and Forecasts to 2019The growth in global polymer foam industry us is driving the demand in blowing agents industry. As a first time exhibitor at Chinaplas 2014, Reverdia demonstrates the benefits of Biosuccinium? sustainable succinic acid and highlights the value of partnership with the Chinese plastics industry. Dymax Oligomers & Coatings R&D Manager Ahmet Nebioglu will give a technical presentation at the upcoming RadTech UV & EB Conference May 12 to 14 in Rosemont, Illinois. Advanced Polymer Coatings is asked to work on all types of chemical resistance projects, and many of these are for tanks with a wide range of aggressive exposures, including strong acids, alkalis, gases, solvents and oxidizers. Sprayroq, Inc., industry leader in the development of spray-applied polyurethane solutions for infrastructure rehabilitation, corrosion management and infiltration control, has added Empipe Solutions Ltd. Specially formulated to optimize bond strength, Master Bond UV15-42C is a UV curable system for bonding, sealing and coating applications. Now available from APS Elastomers are Huntsman Polyurethanes' IROGRAN polyether-based thermoplastic polyurethanes (TPUs). Solid Concepts was honored to provide 3D printed and cast urethane prototype and pre-production components for Equus' Automotive's BASS770, a luxury American muscle car.This thing is a rocket ship, says Ian James, brand ambassador to Equus Automotive. Packaged in easy-open, hi-viz storage tube, PIG Rapid Response Drainblocker Drain Cover has urethane bottom layer that creates tight seal for quickly sealing both floor and storm drains during spill emergencies, indoors or outdoors.
PIMA has submitted public comments to the Environmental Protection Agency regarding the need for a consensus based process for product labeling. The Dow Chemical Company, the largest American chemical company by revenues, has reported its performance results for the first quarter of its 2014 fiscal year (1QFY14; ended March 31, 2014).
Our comprehensive line of Hoenle UV curing systems can significantly optimize the curing (hardening) of UV curable adhesives, coatings, and sealants.
Tangent Industries offers a comprehensive line of UV curing systems that can significantly optimize the curing or hardening of (photo-reactive) UV adhesives and coatings. Uniform UV intensity in a larger footprint facilitates curing multiple components in a batch process. Measurement of UV intensity and dosage for spot and flood cure units, both LED and broad spectrum UV wavelengths. Hoenle LED curing equipment delivers high power for rapid production of Smart Cards and other high volume electronic glob top applications.
In the inkjet arena of narrow format, there is Screen (Dainippon), HP, Kodak Versamark and Agfa Dotrix.
Wide- and grand-format printing applications have flourished because of the flexible nature of inkjet technology and adaptability of inkjet chemistries to various substrates. The capability to control this change only when the printer needs it to happen makes the ink appealing to anyone occupied in the use or formulation of inks. Sales of UV inks have been given considerable momentum by new European Union legislation on the emissions of volatile organic compounds (VOC). Second, UV-curable inks can be printed at higher speeds in both narrow- and wide-format sizes without the need for cumbersome drying systems. Coupled with that flexibility is the wider range of rigid substrates that these inks have superior adhesion to.
PhotoinitiatorsIn starting and completing the UV-curing process, photoinitiators are the prime components. The types of photoinitiators most commonly used in inkjet inks have been of the free-radical nature.
MonomersA monomer (from Greek mono ?°one?± and meros ?°part?±) is a small, single molecule that may become chemically bonded to other monomers to form a polymer. OligomersOligomers have a high molecular weight and form the chemical spine of a UV-curable ink. Additives Depending on the UV ink formulation, other additives can also be included, such as flow and wetting aids, antioxidants and stabilizers.
Stabilizers are used to help with the ink??s shelf-life and increase the tolerance to heat, which is important at higher jetting temperatures. Free-Radical UV InkPresently, the majority of flatbed inkjet systems use what are called free-radical UV inks, rather than cationic (containing positively charged electrons) UV inks.
Free-radical UV inks use an acrylate or urethane resin, which polymerizes rapidly when exposed to UV radiation. Free-Radical, Cure-UV LampsFree-radical UV inks typically use a shuttered mercury-vapor lamp on either side of the print head to produce enough UV output to complete the curing process. A UV lamp??s peak intensity will have a drop off in performance that is related to the bulb type, usage and duty cycle of the printer. Even though the UV-curing process is fundamentally an immediate process ?? inks are certainly ?°dry to the touch?± right after printing ?? some post-curing does take place.
CationicCationic inks, which generally use epoxy resins instead of urethanes, also are virtually odor-free. The curing process is best described as the following: The protons, generated from the photoinitiator during UV exposure, continue to be active after exposure.
These inks typically have better adhesion to the traditional ?°difficult?± substrates, like expanded plastics and glass. Cationic Cure LampsCationic inks cure from UV lamps that are ?°tuned?± to the specific wavelength of UV radiation needed by the photoinitiator.
Optiforms optical components are found in medical and dental devices, aeronautics and aerospace systems, safety detection devices, point of sale displays, semiconductor wafer systems and specialty lighting ranging from entertainment to search to architectural applications.


Whether prototypes or production runs, our engineers will turn your design concept into a manufactured reality. If your application uses a mirror to achieve high-resolution imaging or directed radiation, Optiforms has the experience and capabilities to engineer a suitable solution. With applications ranging from baby warmers, to retinal imaging, teeth whitening and hair removal systems, we count some of the leading medical device manufacturers in North America and Europe among our customers. Optiforms reflectors and filters can take light generated by a single point light source or linear lamp and control its path and bandwidth to the material to cure.
Our thin film coatings sort out unwanted IR light to help keep resins from boiling or burning during exposure. We can also refurbish and restore many other flat and curved surface reflectors used in lithography equipment around the world.
With over three decades of technical advancements in high power lighting components, Optiforms is the industry leader for large surface of revolution reflectors. Incorporating mounting features and high-tech, high-temperature coatings are just a few of the processes that set us apart from other suppliers. We offer a wide variety of standard components and coatings along with the engineering support for projects with more precise tolerances.
Optiforms is ready to work with you on all phases of your project from concept to design to development and manufacturing.
Global leader in electroformed optics, deep-dish optical coatings and infrared imaging components for the Aerospace, Medical, Semiconductor, Specialty Lighting and Industrial markets. APC's ChemLine coatings are engineered using unique polymer technology to deliver excellent resistance.
More and more components, which were traditionally manufactured from steel or aluminum, are giving way to fiber-reinforced plastic parts: Sidewall panels, base pans, entire roofs, front-end carriers, carbon design parts and more besides. This method, however, leaves protruding bolt heads exposed so that they catch pieces of grain and become wear areas in the system. The company has posted earnings of 79 cents a share, which top analyst estimates by eight cents.
The blog post titled, "The Need to Address the Lack of Consensus Procedures in Developing LEED," seeks to address some of the shortcomings of the LEED program. For the Middle East refining and petrochemical industry, a changing global feedstock mix and increasing competition in the U.S. Tangent Industries offers a broad line of Hoenle UV systems including LED curing equipment, UVAHAND (Hand Held UV curing equipment), Bluepoint (UV spot curing systems with light guide), UVASPOT (large area UV curing equipment) and more! Please contact Tangent for more information about the products, including pricing and availability.
Ink research and development for inkjet printing has never been greater, with a migration from the original water-based dye and pigment inks to the presently popular mid- and high-solvent and UV-curable inkjet ink types.
Within the last two years, there has been a incredible rush toward the use of UV-curable inks in most of the printing markets.
UV-curable inks, which were already being used extensively in the screen printing field, are replacing much of the solvent inkjet ink currently in use. Lastly, the flexibility now being seen in the UV ink formulations allows roll-to-roll capability, opening up fleet graphics applications in the areas of wide- and grand-format printing. Compared to solvent inks, UV does not dry up in the inkjet head and exhibits a lower rate of nozzle failure caused by blockage. A polymer can be any of numerous natural and synthetic compounds of high-molecular weight, consisting of up to millions of repeated linked units ?? each a relatively light and simple molecule.
After absorbing UV energy from the light source located on the print head, the photoinitiators fragment into reactive materials that start the chemical reaction known as polymerization.
Ink formulators work with photoinitiator suppliers to develop inks that are compatible with the UV output of medium-pressure, mercury-vapor bulbs found in most curing systems for inkjet printing. Monomers provide many specific functions within an inkjet formulation, depending on their viscosity and chemistry.
Oligomers determine the final properties of the cured ink film, including its elasticity, outdoor performance characteristics and chemical resistance.
Usually, the colorant is pigment-based because of the greater light fastness and durability of pigments compared with dyes.
Surfactants (surface active agents) are included to ensure the ink film spreads in a controlled fashion, and coats the media or substrate uniformly. Simplistically, stabilizers neutralize or absorb reactive molecules in the ink during storage and prevent polymerization.
Recent innovations of new performance-enhancing, cationic-ink chemistry have stimulated their development for inkjet-type applications. These bulbs are unbelievably hot, and that temperature gets transmitted to the substrate with each pass of the print head. UV curing lamps age, and with subsequent changes in output, they may reach a point in which inadequate energy is emitted to fully cure the ink layer.
Dust and ink residues on lamp windows and reflectors also can have an impact on the lamp unit??s output, requiring periodic maintenance to prevent any reduction in cure efficiency. UV-curable inks are essentially on top of the substrate (unlike solvents that etch into the substrate), and the interface between the ink and the substrate is not as strong as solvent inks. They start to polymerize when exposed to UV radiation in the nanometer range which stimulates the photo initiator chemistry. The excellent adhesion to difficult substrates is related to the ink??s reduction in shrinkage (due to heat), which is roughly one-third of that experienced by free-radical UV ink systems.


Manufacturers also are utilizing UV-light emitting diodes (LED) lamp blocks to supply the necessary UV energy.
From search light reflectors for surveillance helicopters, to covert filters for long-range IR light sources or cold shield housings for high definition IR imaging systems, attention to detail comes first at Optiforms.
You receive the quality, accuracy, and on-time delivery that sets Optiforms apart from its competitors.
Customers report increased operational hours and a resultant decrease in service using our metal reflectors over an equivalent glass or untreated aluminum reflectors. We are experts in radiant energy systems, electro-optical and electro-mechanical systems, low mass cold shields, unique electroformed structural shapes as well as enhanced spectral performance coatings. We have the resources and expertise to provide the solutions designers and engineers need to manufacture their products better, faster, and more affordably whether a one off prototype or hundreds of units per month. Nebioglu's presentation, "Next Generation of UV-Curable Cellulose Esters", will be held at 10:00 AM on Tuesday, May 13, as part of the Bio-Based Materials session. It will spotlight this timesaving creative medium for 3-D signs, dimensional graphics and displays at the Sign?Foam booth, #906, in the Orange County Convention Center.Available in 15- and 18-lb. Application Engineering at Tangent Industries provides assistance with adhesive and coating recommendations, and will assist to optimize your UV curing process for maximum productivity and efficiency. Driving the shift to UV is its ability to almost immediately change the ink state from a liquid to an extremely resilient hard film.
This increase has been driven by new developments in ink technology and demand from printer manufacturers and end users. Solvent- and water-based inks dry by evaporation and upwards of 80 to 90 percent of those ingredients go into the atmosphere as vapors during the printing process.
Ultraviolet light is electro-magnetic radiation, situated between 200 and 380 nm of the light spectrum. But there are downsides, including UV-light exposure hazards and possible sensitization issues related to the handling of uncured UV ink. Disadvantages from this type of light source include excessive substrate heating, high power consumption and the need for scheduled lamp replacement. Most mono-functional monomers are used as ?°solvents,?± or flow modifiers, because of their ability to reduce viscosity and combine with other ink components.
Pigments used in outdoor advertising and display applications have similar requirements to those used in automotive paints. Careful control of drop-spreading behavior contributes to the dot-gain control, which is vitally important for image quality.
There are limitations to free-radical UV inks, which include oxygen inhibition, poor adhesion to difficult substrates and residual odor. If the ink layer is not cured completely, the ink will not reach its intended hardness potential.
Moreover, the effects of exposure time to UV radiation are cumulative: If an ink is over-cured, it can become fragile and flake off.
In the past, cationic inks have been available for UV-curable analog printing, but the polymerization process could take hours from initiation to completion. That means a coating does not need to be fully cured after it leaves the light source, just dry to the touch. Cationic inks are sensitive chemistries, and can react with the bases and acids present in inkjet media, resulting in poor adhesion. This feature enables UV inkjet systems to be used on substrates that, until now, had been considered unsuitable, including vehicle graphics, uncoated glass materials and other slick or heat-sensitive substrates.
These two UV curing lamp systems do not generate the high temperatures associated with mercury-vapor lamps. His extensive background in digital imaging, electronic pre-press for print, professional photography and computers, serves members by supplying individualized solutions to their daily business problems. Our thin film laboratory has been a leader in vacuum deposition surface enhancement coatings where maximum performance is a priority.
Hoenle is a recognized leader in the global development of UV technology for industrial applications. The advantages of UV-curable inks overshadow any disadvantages, marking them as the dominant ink system for the future of industrial inkjet printing.
Let??s go over some of the verbiage associated with UV inks, and how the UV curable process works. Cold curing mitigates the heat issue associated with free-radical UV cure inks while, at the same time, the cured ink is more robust at its cured endpoint. Burton received his Bachelor of Science in Photographic Science from the Rochester Institute of Technology.
Hoenle products are used worldwide in the manufacture of electronics, microelectronics, optics, medical devices, furniture, and glass art. While a pigment is selected on the basis of the required application, size control and reduction along with dispersion technique are major components of ink formulation. These ?°higher functions?± of a monomer add improved film hardness and resistance properties, but may also increase the viscosity of the chemistry.



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