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Jun 7, 2021

Offset Printing vs. Digital Printing

Professional Offset Printer in action

Offset printing vs. Inkjet Printing

Though traditional offset printing and digital printing are beneficial methods, each has advantages and disadvantages. Ultimately, choosing the better printing process will depend on the specific needs of your project.

What is Offset Printing?

Illustration of offset printing system

Offset printing requires a plate for each color printed.

Traditional offset printing is a print method that uses aluminum plates to transfer ink onto a rubber sheet (often referred to as a “blanket”). The image is then rolled onto the printing surface. This printing method is considered “offset” because the ink is not transferred to the paper directly.

This method is generally considered the best option when printing large quantities. Although there is a high initial cost to set up the equipment, additional units become relatively less expensive as quantity increases.

Offset printing allows for a wide range of print materials to be used during production.
It allows the printer to use different paper types, custom finishes, and various inks. The high-quality images produced through offset printing make it the preferred method, especially among graphic designers, when seeking the greatest color reproduction, detail, and professional-looking prints.

Some confusion arises with the idea of “digital offset printing,” which refers to integrating digital technology into traditional offset printing processes, enhancing efficiency and reducing setup times while retaining the fundamental characteristics of offset printing, such as high-quality color reproduction and versatility in print materials. The fundamental printing method remains offset.

What is Digital Inkjet Printing?

ForIllustration of thermal inkjet printing digital inkjet printing, ink is transferred directly onto the surface. Rather than relying on aluminum plates and rubber blankets to transfer an image, digital printing uses liquid ink during production. Traditional home inkjet printers are one of the most common digital printing methods.

Digital printing requires no manual setup. It’s highly effective for use with smaller quantity runs. It is far more cost-effective than offset printing for low-volume projects.

Because of the lack of setup, digital printing is also a quick process, capable of completing projects on short notice or finishing a job to meet tight deadlines. Digital printing also offers maximum customization. Each piece can be customized, making this method extremely effective if a job needs personalized customer names.

Benefits of Offset Printing

  • Better color fidelity refers to both the accuracy of the colors and their balance in the design. Because offset printing can mix custom color inks for each job, it will naturally get the colors spot-on.
  • Works equally well on almost any kind of material.
  • Reliable, superior image quality. Count on offset printing for clean, distinct types and images without streaks or spots.
  • For large-volume jobs, you get more for your money. It costs a lot to start an offset job. You have to invest money into creating the plates, which takes time. However, once you’ve invested it, all of the materials are ready to go, and you’ll spend less on big offset jobs than a digital print, which is about the same per piece no matter how big the job gets.

Benefits of Digital Printing

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  • Unlike offset printing, inkjet printing offers a fast turnaround time.
  • Each print is identical. You risk fewer odd variations caused by imbalances in water and ink.
  • Cheaper for low-volume jobs. The price per unit drops for offset printing, so at some point, they crisscross.
  • Changing information within a single print job. For example, say you were printing out postcards advertising a concert. You could change the dates and locations for part of the batch to create two sets of cards for two shows.

Why Convert to Digital Printing from Offset?

While digital printing or inkjet printing is the preferred choice in the present times, there are compelling reasons to convert from offset to digital printing systems.

Color matching

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When printing is done on offset or digital, critical decisions and processes are involved in color matching. Chances are if it has a graphic overlay or includes a label, it will have colors. It may be as simple as black text on a white background or as complicated as 10 colors. Whichever the case may be, the chances are that the color will need to be matched. Color matching is no longer a challenge in digital printing with pigments and inkjet ink capabilities.

Versatility

uv inkjet printing

Industrial inkjet printing offers versatility for printing on many different substrates.

Digital printing is ideal for customers who do not require longer runs and warehousing materials.

  • With ever-changing trends comes product variations, and digital printing offers the most cost-effective solution when testing marketing campaigns and limited releases. Smaller-scale product manufacturing creates more demand, and customers tend to buy them before stocks run dry. Under such circumstances, printing, labels, packaging, signage, and promotion can be printed quickly and cost-effectively through digital printing.
  • Digital printing also supports just-in-time delivery, eliminating the need to carry inventory, which requires valuable space and time.
  • On-demand printing also avoids needlessly creating waste when priorities and designs change.

Handling Errors

Quite often, errors in printing are unavoidable under certain circumstances. This becomes critical in long-run print orders. Fixing mistakes is a tedious exercise and almost impossible in offset printing. However errors like
Misspellings, omissions, corrections, etc., can be easily rectified with digital printing.

Customization and Personalization

Single-unit customization or personalization is one of the biggest demands in modern-day printing. The greatest advantage of digital printing is the value of personalized services or special customization based on each client’s requirements.

More Choice of Substrates

One advantage of digital printing is choosing from a wide range of digital substrates. With offset printing, substrates make up, on average 30% of the cost of the job. With digital printing, the cost of the substrate in the overall job is minuscule. This allows for more choices than ever before. And that’s a good thing for marketers and businesses.

Equipment cost

Of the three types of inkjet technology, thermal inkjet (TIJ) offers the lowest cost of entry and cost of ownership. Piezo drop-on-demand is the second printing technology to consider. Continuous inkjet (CIJ) systems require significant maintenance, more operator training, and higher downtime. However, equipment costs in inkjet printing are far lower than offset printing as there are no plate-making, plates, and press expenses. Beyond the capital expense, the prepress equipment and printing presses require highly skilled operators in offset printing, which adds labor costs.

Hybrid Printing Combines Offset and Digital

Hybrid industrial printing systems integrate offset printing with digital inkjet technology, streamlining the production process on a single-pass line optimized for offset printing. This innovative setup maximizes the advantages of both analog and digital printing methodologies.

Benefits of Adding Digital Printing to Offset Printing Systems

  • Enhanced Customization: Digital printing allows for variable data printing, enabling personalized content and designs tailored to individual products or customers.
  • Improved Efficiency: Inline digital printing minimizes setup time and reduces waste compared to traditional analog methods, leading to faster turnaround times and cost savings.
  • Superior Quality: The combination of offset printing’s high-quality color reproduction and digital printing’s precision results in sharp, vibrant graphics and text.
  • Versatility: Hybrid systems can handle various substrates and applications, from labels and packaging to security and pharmaceutical products.
  • Sustainable Practices: Digital printing consumes fewer resources and generates less waste, contributing to eco-friendly printing practices and reduced environmental impact.

Common Applications for Hybrid Offset-Digital Printing Systems

  • Household, personal care, food, and beverage labels
  • Security and pharmaceutical labels requiring variable data or unique identifiers
  • Automotive and retail product labels with intricate designs and branding elements
  • Flexible packaging for various consumer goods
  • Laminate tubes and shrink sleeves

By integrating digital solutions into offset printing, hybrid industrial printing systems offer a versatile and efficient solution for diverse printing needs while maintaining the high standards of quality and customization required by modern industries.

The Kao Collins X-BAR print module integrates digital inkjet capabilities with inline offset printing systems, enhancing versatility, efficiency, and quality. Its features include integrating existing equipment, improved productivity, high-quality output, and cost-effectiveness. Typical applications include labels, packaging, security labels, automotive, retail, and specialty products like laminate tubes and shrink sleeves.

X-BAR Benefits

  • High throughput and maximum uptime for improved productivity
  • Premium quality output with sharp and clear results
  • Needed flexibility with advanced inks for substrate compatibility
  • Significant savings on consumables leading to accelerated ROI
  • Fast restarts, zero charge shorts, and zero streakers to reduce downtime
  • Future-proof production with the Kao Collins Universal Controller
  • Higher DPI (1,200 dpi at 1,000 fpm) for superior print quality

Comparing Industrial Inkjet and Offset Printing

Benefit Offset Industrial Inkjet
Quickest turnaround
Cost-effectiveness for shorter runs
Cost-effectiveness for longer runs
Most accurate color matching
Substrate compatibility
Ease of proofing
Mass customization
Cost of ownership

Frequently Asked Questions

What does "Digital Offset Printing" mean?

What does “Digital Offset Printing” mean?

Digital offset printing refers to highly automated offset printers that streamline setup and changeover processes, although the fundamental printing method remains offset.

Can offset systems print variable data?

No, offset printing is not suitable for variable data printing, which is an exclusive capability of digital printing methods.

What is the difference between digital and offset printing?

Digital printing transfers color directly to the paper, while offset printing uses separate plates for each color component, transferring ink to a blanket cylinder before printing.

How does industrial inkjet printing compare to offset printing?

Industrial inkjet printing offers quicker turnaround times, cost-effectiveness for shorter runs, more accurate color matching, substrate compatibility, ease of proofing, mass customization, and lower cost of ownership.

What are some common applications for hybrid offset-digital printing systems?

These systems are used for labels, packaging, addressing transactional documents, flexible packaging, security labels, and shrink sleeves.

What is the difference between offset printing and inkjet printing?

Offset printing uses aluminum plates and rubber sheets to transfer ink onto paper, while inkjet printing directly transfers liquid ink onto the surface.

What is the Kao Collins X-BAR print module, and what benefits does it offer?

The X-BAR print module integrates digital inkjet capabilities with inline offset printing systems, providing high throughput, premium quality output, substrate flexibility, cost savings, and future-proof production.

Kao Collins Inc.

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