Inks/Coatings/Primers

UV/EB a Bright Spot in Economy

Recent shortages of acrylic acid exemplify the problem of raw material supply and its impact on the price stability. Last year has seen various price increases in raw materials, and this trend is continuing into this year. As a result, it is anticipated raw material price fluctuations will negatively impact UV/EB products.

Evolving Ink Jet Technology

T he concept of forming droplets of liquid in a stream was studied by Lord Kelvin and Lord Rayleigh and other technologists as early as the late 1800s. However, it was not until 1951 that it was patented for the first practical ink jet device based on Rayleigh’s concept.

Water-Based Printing Inks & pH

In a water-based ink, many of the ink components contribute to the ink pH. For example, the common acrylic resins used in water-based inks are acidic. They are not soluble in water but are soluble when alkaline materials are added.

Inks, Coatings, Compliance

Packaging engineers are designing new products to meet the growing demand for food packaging items that can be prepared quickly and conveniently by the

New Inks Have a High IQ

Well, we've heard a lot about smart packaging, so it was inevitable such packaging would require intelligent inks. With current packaging development

Rise & Fall of Printed Film COF

Packaging products require a specific range of coefficient of friction (COF) to allow automatic packaging operations to run unhindered and to prevent

The Latitudes of LEAN

Value-stream mapping is among the many lean-oriented actions your operation can take. But how do you navigate the swelling "lean" lexicon that's appearing on the converting industry horizon?

Unique Issues of Laminating Inks

One of the major advances in flexible packaging was the introduction of film laminated structures. Film lamination allowed different properties to be

Getting Better with Time

It wasn't too long ago water-based inks were thought of more as a solution to protecting the environment than a choice for high quality printing. But

Ink Jet PigmentsThe Land of the Small

If you've ever had your ink jet-printed copy get wet, you saw all the inks became soluble and you had a mess on your hands.

Why Manage Color?

Just as perception of color varies from one individual to the next, each device in the imaging workflow—input, display, output—relies on a different method to process colors.

Energy-Curable Inks

What is the state of UV/EB technology today, and where could it lead in the future? Here are answers to some frequently asked questions.

What Is the Role of Tack in Printing Inks?

Since the earliest attempts at transferring ink from one surface to another, the characteristics of a printing ink have been an important factor in print

A Lesson in Amines Used in Water-Based Products

One of the key ingredients of many water-based inks and coatings are amines. Amines and ammonia are used in water-based products to control pH required

Redefining Plasticizers in Inks and Coatings

The dictionary defines plasticizers as any of various substances added to plastics or other materials to keep them soft or pliable. For the purpose of

Focus on Crosslinking in Fluid Ink Systems

Crosslinkers are an important class of additives ink and coating formulators use to enhance properties. These materials must be selected carefully to

Dealing with Ink Adhesion on High-Slip Films

One of the most common problems with printing high-slip films is poor ink adhesion. Such films have low surface energies, and the levels of slip additives

NAPIM Survey Finds Printers Are Focused on Ink Performance on Press, Not on Price

America's packaging printers want their ink to perform on press as well or better than advertised. That's the key finding of a recent survey distributed among 2,000 printers by the National Association of Printing Ink Manufacturers (NAPIM).

A Brief Chemistry Lesson On Printing Ink Pigments

I have received various inquiries about pigments and pigment chemistry. I will try to answer a few of these questions as they relate to package printing

VOC-Compliant Inks: What State Are They In?

Two issues that have remained in the forefront of our industry for at least two decades are environmental regulations and flexography. As the quality

Crosslinking Agents Can Improve Physical Properties

One of the key areas of ink/coating formulation is the use of crosslinking additives to improve physical resistance properties, such as ink adhesion and

Electronic Ink Technology: New Players Aid Progress

Not only will these electronic inks be used on paper, but they can be printed and laminated to create many packaging products. More than a year ago, I

So You've Seen a Ghost! Who You Gonna Call?

Many of us enjoyed watching Bill Murray conquer the ghosts that he encountered in the movie Ghostbusters. So, you ask, what do ghosts have to do with

Assessing the Potential for Ink Transfer and Migration

Potential transfer…depends on many factors, such as degree of cure, ink adhesion, pressure between cups, length of time in contact, etc.

Jet Inks, Colorants, and Packaging What's Ahead?

The rapid growth of ink jet technology in various printing sectors forecasts their use in package printing. However, use of ink jet printing in packaging

Water-Based Ink Adhesion and Web Temperature

Unlike solvent-based inks where binders are dissolved in the ink solvents, water-based inks comprise several binders, none of which are soluble in water.

Small Inspection Light Proves to Be a Shining Star

Unilux creates a hand-held inspection light for Amgraph Packaging that is not only bright enough but convenient and durable as well.

Assessing Inks, Dealing with DigitalThe NPIRI Conference

The National Printing Ink Research Institute (NPIRI) held its 44th Technical Conference in October in Pine Mountain, GA. The well-attended event included

Think the Ink You're Using Is A No-Brainer? Think Again.

Well, here we are inside the new millennium and things certainly are complicated, aren't they? Though we entered Y2K without the many catastrophes predicted

The Formation of ''Microfoam'' in Water-Based Flexo Inks

If you bubble air into water, the foam bubbles produced rupture rapidly, and the water surface layer becomes flat. However, if you add a small amount

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