How Thermal Inkjet Marking & Coding Reduces Risk for Brands

The dot-matrix alphanumerics commonly used by industrial printers for coding and marking lot codes and expiration dates on consumer products pose a considerable risk for consumers and brands. Many people struggle to read the characters because the CIJ printing systems used to produce dot-matrix codes cannot achieve the degree of legibility possible with newer TIJ technology and compatible inks.

Worldwide, regulations specifically outline requirements for labeling of consumer products, including expiration dates and lot codes. These include guidance on the legibility of information.

Unfortunately, these regulations have not kept up with our aging population’s needs, who may struggle with reduced vision. According to the United States Census Bureau. External Link. Opens in new window., baby boomers account for about 73 million consumers. By 2030, all of the generation born between 1946 to 1964 will be at least 65-years-old.

Of equal concern are the 246 million people worldwide who have impaired vision, according to the United Nations World Health Organization (WHO). External Link. Opens in new window..

Misreading expiration dates, especially on sensitive products such as medications, could jeopardize consumers’ health and a brand’s reputation. In the event of a product recall, lot codes are equally critical to both the supply chain and consumers because they both must quickly discern whether products are subject to the recall.

Product Types on FDA List of Recalls, Market Withdrawals, and Safety Alerts

he E.U, Canada, the U.S., and other countries have codified regulations for accessible workplaces, public places, and now websites and other digital platforms. Detailed legible marking and coding requirements are conspicuously absent.

Until recently, the only option for consumer brands and packaging companies has been dot-matrix marking and coding with continuous inkjet printers (CIJ). Other inkjet technologies have caught up with CIJ for marking and coding. Notably, thermal inkjet printing (TIJ) prints highly legible block letters and numbers.

Here’s a look at how new thermal inkjet technology helps industrial printing companies offer higher quality marking and coding to meet legibility requirements and expectations of brands.

The industry’s three primary players in thermal inkjet technology are Funai, HP, and Canon. When compared to CIJ, all three TIJ printing systems excel at printing labels and codes with higher quality.

Historically, the challenge for printing lot codes and expiration dates using TIJ technology has been that TIJ printheads could not match CIJ printers’ throw distance. This made it more difficult for TIJ systems to print high-quality codes and labels on food and pharmaceutical packaging with curved surfaces or recessed areas. Thus CIJ printers became the preferred method for coding and marking, despite their many disadvantages compared with TIJ printers.

Advantages of Thermal Inkjet Printing Systems

Thermal also rivals CIJ coding and marking for line-speed performance.

Breaking on the scene in 2020, Funai challenged other TIJ printing technology for marking and coding. It offers a distinct advantage of a throw distance nearly twice that of HP and Canon without reducing the print quality of the type or 2d codes. The new cartridges extend the throw distance to 10mm, compared to about 6.4 mm with a larger drop size than HP.

The greater throw distance using compatible TIJ solvent inks enables higher quality printing of labels and codes on more types of products, such as coding on the bottom of recessed beverage cans, wide-shoulder jugs, or curved glass containers.

Funai’s new thermal inkjet printer cartridges offer other distinct advantages over HP cartridges:

Compatibility with Strong Solvent Inks – Funai’s specially designed cartridges don’t degrade when used with strong solvent ink formulations. The broader selection of solvent inks that can be used with Funai cartridges increases the substrates that can be printed.

More Ink Storage Capacity – More ink in the Funai cartridges extends the time between replacement, helping industrial printers reduce downtime and waste.

Undertaking a migration from CIJ printing systems to TIJ technology requires careful consideration. The reluctance is understandable, considering the usual time and costs involved.

However, the competitive advantages now offered by TIJ printing systems have removed the typical barriers of cost and quality. And as brand managers and legal departments at food and pharmaceutical companies weigh these benefits against the risk to consumers and reputation, the pressure on those using CIJ printing systems to switch to TIJ will only increase.