Needham Ink

Bright Inks Added Value to the Printed Product

Though the product worked, low demand plus the limitations of commercial application, located in the non-commercialization of these kinds of inks in the united states. Further developments, completed by the University of Rhode Island, have allowed the use of thermochromic polymer industry for food packaging for its migration into food no.

There are a number varieties of smart inks described below, but observe that even today its main application is security printing, timbre, currency and documentation.

Form of smart inks

A very good ink is ink that after printing reacts presenting a modification of some of their properties because of the variation using some manifestation of the surrounding environment.

We will list smart inks, according to the variable property presents.

Type 1

Are the ones which change color because of the variation of external phenomenon? These inks can be split up into three types depending on the external phenomenon causes color variation.

Thermochromic inks: people who change color mainly because of the temperature variation. This modification could be reversible or irreversible. The shade change occurs with a specific temperature range.

Electrochromic inks: those inks having the power to vary its absorption spectrum and reversibly colored by employing an electrical impulse.

Photochromic inks: those inks that change color reversibly by varying any type of illuminant.

Type 2

Are the types inks that are capable of emitting light of various nature, as a result of an external phenomenon.

Electroluminescent Inks: people who produce light when applied potential difference.

Fluorescent inks: inks are the types that are able to emit light when excited nanoseconds during its electrons with a higher energy state. The phenomenon of fluorescence requires, therefore, a continuous method of obtaining excitation to generally be continuously observed.

Phosphorescent inks: those inks that produce visible or invisible light, because of a compact incident light wavelength, detectable following excitation source is taken off.

Type 3 - Optically variable inks

Are those inks that change color depending on the viewing angle? You may even range from invisible to visible with glow effect. Depending on the particle and type dimensions are used; it truly is possible to obtain unique variations of effects.

Type 4- Magnetic inks

Are the types finding the capability of storing encoded information?

Type 5- Biologically active inks

They really are individuals who detect a microorganism on account of a chemical reaction caused by a alteration in environmental conditions. This reaction produces a change in colour of the ink.

There has been several of the smart ink existing in the market. With the exception of conductive and magnetic inks, all exhibit observable changes at a glance.

The inks described above, have already been selected for the article, the advanced properties presented and the possibility of integration into conventional printed product. It is worth mentioning there are several other inks with advanced properties that can be of great interest, for example inks smell and texture.

Smart inks on the market

The marketing of these inks is made in graphic arts, so possibly our usual supplier, may inform alternative ideas for the printing.

While it is true that, today, has not yet been possible to develop all smart or functional inks for all conventional printing technologies.

The reasons why which happen to have not been developed are listed below:

Not found a remarkable application for any graphic arts industry.

There is absolutely no requirement for these inks to raise development and research of them for many different printing technologies.

The expense of the inks is high as compared with conventional inks.

They include, most inks market acceptance for the standard of development or its similarity to conventional inks of their rheological properties and it is application relate are:

Optically variable inks, where the final appearance on the printed ink is determined by the particle size; to make sure that dependant upon the printing technology will undoubtedly be appreciated the results more or less. Always possible printing with such inks, simply to consider regardless if the effect to become obtained is feasible by our quality printing.

Thermochromic inks, still under development to grant greater chromaticity when they are colored, and enhance the accuracy of discoloration. The provider should find out about colors and temperatures change, even if these inks are for those printing technologies. From certain concentrations form aggregates. Which is the biggest problem we have now.

phosphorescent and Fluorescent inks, The fluorescent color inside the printed material, it happens to be more a matter of fashion Difficulty development or application. Thus the fluorescent inks are plentiful.

Instead, phosphorescent inks today are recommended as security inks and perhaps happen to be intended for advertising or commercial purposes. These inks have a very limited market that will depend over the printing technology.

Photochromic inks, these inks have color on the absence of light, and become colored when confronted with light. No problems have to be printed under all existing conventional printing technologies. But thanks to low demand, absence of application, today is not actually easy to find these inks to be used with all of printing technologies, screen printing technology being where it's used.

Uses of smart inks

One possible part of involvement in the utilization of smart inks stands out as the packaging sector, where consumers increasingly demand details regarding the products they purchase.

Because smart inks exhibit a change in without doubt one of its properties as a consequence of a change in a manifestation of environmental surroundings that surrounds it, are perfect to alert the buyer to the variation of the property on the product reviewed. Together with a special feature about the package, it is possible to enhance product acceptance sold in the market, and as a consequence increase their competitiveness.

We can easily find printed electroluminescent packaging inks, which make this system attractive and will help you to improve the level of sale thereof. Although almost all of the electroluminescent inks application is in printing, signage and decoration publicomercial because the results of printing by using these inks are very interesting, durable and bright.

The photochromic ink may be used on the packaging sector, when needed control the light exposure of an product. These inks can be used as time-temperature indicators, enabling monitoring the lighting exposure of the product, and as a consequence inform / alert the status. These inks have a desire for the food items sector along with other sectors exactly where the light can affect the product, say for example a CD, where light can customize the data recorded into it.

The optically active inks have their own greatest application in paper money, and security documents. On the optically active color and inks brightness fluctuates dependant upon the angle of illumination and observation. The interest these inks is always that its optical effect can not be replicated by color copiers, therefore the employment of these involves a definite standard of security.

These special inks can be used by packaging of pharmaceutical products to forestall counterfeit medicines. Where the brightness and hue of printed inks can influence the acceptance for the advertised product, like in publicomercial printing.

Interestingly, the potential applications of conductive inks, and also magnetic inks, since their applications have a very higher technological advancement compared to other inks mentioned above.

The magnetic inks exhibit very interesting, but for the characteristic composition, the main application for food packaging, is not actually possible.

Its use has no place in secondary or tertiary packaging for pharmaceutical or food products, although at the moment, these inks are recommended for a security on documents and checks.

It is important to recognize that these inks are hard to manufacture. For virtually every alterations into the machine, the devices magnetic character recognition (MICR), may find difficulty in recognizing characters printed due to possible alteration of magnetic level and readability.


The graphic arts industry, you need to know of these kinds of improvements and also to introduce new developments inside the manufacturing process also to the introduction of a new product, more innovative and more competitive.

Because of the current economic situation, the competition is really high, and just having the capacity to innovate minimizing production costs, we is able to purchase a better position available in the market today. Customers expect us innovative and economic solutions.

It really is inside our hands innovating. You will discover new and not simply so new developments that may be included in our industry. It's about we start thinking we can because of obtain products with higher added value. For additional information about site for Food Grade Ink simply click here.