In today’s consumer market, paper packaging has become the preferred packaging solution for industries such as food, retail, and e-commerce, thanks to its environmentally friendly attributes, premium quality, and flexible customization options. From retro-inspired kraft paper stand-up pouches to brand-inspired shopping bags to practical and aesthetically pleasing window packaging – every piece of paper packaging relies on efficient and precise printing technology. As a manufacturer specializing in the research and development and production of single pass digital printing equipment, RobotJet single pass digital inkjet printers, with our robust compatibility and superior print quality, easily meet the full range of paper packaging printing needs, providing a key driver for companies to upgrade their packaging customization efforts.
From “Basic Packaging” to “Brand Carrier,” Digital Printing Adds Value to Paper Packaging
In the past, paper packaging’s core function was simply to protect the product. Today, it has become a crucial vehicle for brands to convey their values and attract consumers. Whether it’s a custom zipper bag with a unique logo or a kraft paper stand-up pouch with creative illustrations, high-precision printing technology is required to reproduce the design details. RobotJet digital printers break the “minimum order quantity” and “color restrictions” of traditional printing. Even for small-batch customizations, they can achieve rich colors and clear patterns, turning each paper packaging into a “mobile billboard” for the brand. (Minimum print quantity: 1 piece, CMYK full color printing)
Take Kraft Stand-Up Pouches and Branded Custom Zipper Pouches Bags as examples. These packaging types are commonly used for food products such as bread, coffee, nuts, and snacks, and require extremely high environmental performance and adhesion. RobotJet single pass digital printers use food-grade, environmentally friendly inks. Printed patterns are not only resistant to abrasion and fading, but also perfectly blend with the texture of kraft paper, ensuring that the “natural and environmentally friendly” packaging is in line with the brand’s philosophy. For Kraft Pouches and Paper Bags with Window packaging, which require product details, the printer can precisely control the printing area to avoid ink coverage of the window area, achieving both aesthetics and practicality.
YouTube link: Single-pass digital printer for paper bags with handles
Comprehensive Product Coverage: RobotJet digital printers are compatible with all mainstream paper packaging applications.
Whether it’s retail shopping bags, sealed bags for the food industry, or mailing bags for e-commerce RobotJet single pass digital printers offer a single, multi-purpose solution, easily meeting diverse paper packaging printing needs without frequent equipment changes or parameter adjustments, significantly improving production efficiency.
Water absorbing materials → Water based ink single pass digital printer
Non water absorbing materials → UV ink single pass digital printer
1. Food Packaging: Balancing Safety and Efficiency
The food industry has stringent requirements for packaging safety and hygiene. Resealable Paper Food Bags, a common food packaging format, require clear printing and compliance with food contact safety standards. The RobotJet single pass digital printer uses digital water-based ink / UV ink, which cures quickly and is odorless. After printing, it can be used directly in food packaging production without the need for additional drying or testing, ensuring safety while accelerating production. Furthermore, for customized food packaging needs in small or multiple batches, the printer can quickly switch between designs, helping companies flexibly meet packaging requirements for varying flavors and sizes.
2. Retail and Shopping Scenario: Creating Unique Brand Identity
Paper Shopping Bags and Paper Bags with Handles: Bulk Brown Kraft Shopping Bags are standard features in the retail industry and a key source of brand exposure. Many retailers hope to enhance brand recall through customized shopping bag designs—for example, by incorporating brand slogans or limited-edition promotional graphics. The RobotJet single pass digital printer supports large-format printing, ensuring clean edges and uniform color on even oversized bags. Furthermore, for mass production needs, the printer’s high-speed printing mode enables hourly output, meeting retail companies’ stocking schedules.
3. E-commerce and Mailing: Balancing Protection and Brand Communication
With the growth of the e-commerce industry, paper bags and paper mailers are gradually replacing traditional plastic courier bags due to their environmentally friendly and lightweight features. This type of packaging not only needs to be drop-resistant and waterproof, but also can enhance the consumer unboxing experience by printing brand logos, delivery reminders, and other content. RobotJet digital printers can reliably print on paper mailing bags of varying thicknesses and materials. Even specialty paper with a waterproof coating can be perfectly printed using UV single pass digital printers, ensuring ink adhesion and preventing brand information from fading or blurring during shipping.
Why Choose RobotJet Digital Printers? 3 Core Advantages Address Pain Points in Paper Packaging Printing
For packaging manufacturers or brands with customized packaging needs, choosing a printer with strong adaptability and stable performance is key to improving efficiency and controlling costs. RobotJet Single pass digital printers offer three key advantages for paper packaging printing:
1. High Compatibility: Compatible with all paper packaging materials.
Whether it’s rough kraft paper, smooth coated paper, waterproof coated paper, or thin food-grade oil-based paper, the RobotJet single pass digital printer uses intelligent material recognition technology to automatically adjust printing resolution, ink usage, and curing speed, preventing problems such as paper jams, blurred images, and ink buildup. This eliminates the need to purchase separate equipment for different paper packaging types, significantly reducing initial investment costs. I personally recommend the Epson A3+ print head configuration machine. Durable and stable.
2. High Flexibility: Seamlessly switching between small-batch customization and large-scale production.
Traditional printing equipment often suffers from high minimum order quantities and high revision costs, making it difficult to meet the current market demand for small-batch, multi-style packaging. The RobotJet digital printer supports “upload and print,” with a print time of as little as 5 minutes from design file upload to start. Furthermore, the high-speed printing mode enables batch output of thousands of packages per hour, easily handling both limited-edition brand packaging and regular corporate stocking needs.
3. High Cost-Effectiveness: Reduced Overall Production Costs
On the one hand, RobotJet digital printers offer high consumables (ink) utilization, eliminating the “ink waste” issue associated with traditional printing. Furthermore, they offer low maintenance costs and a long lifespan for core components, reducing subsequent repair and replacement expenses. For companies with long-term paper packaging printing needs, this can effectively reduce overall production costs and increase profit margins.
4. 1L ink covers 200㎡, pre-press cost can be calculated with one click
1L of ink can achieve 100% full-page printing on an area of 200 square meters, ensuring stable and controllable ink utilization.
Our equipment features a dedicated ink consumption calculation function: Simply import your print design into the accompanying software, set the print dimensions, and ink unit price, and the system will automatically calculate the precise ink cost per print, providing clear and transparent cost budgeting.
If you need to calculate the actual ink usage for a specific design, please contact us and send us your design file. We can not only accurately calculate ink consumption for you, but also provide physical proofing services to provide you with a direct understanding of the printing effect and cost.
Steps to Get Started with Digital Paper Bags Printing
Digital printer operation for your reference !
1. Preliminary Preparation
Equipment Installation and Placement: Place the machine on a flat, stable surface indoors. Remove the printer from the wooden box and attach the computer stand to the corresponding locations on the left and right sides of the printer using four screws.
Power Connection: Use 220V – 240V (±10%), 60Hz, single-phase AC power and connect the device to a grounded outlet. Ensure the printer’s conveyor power cord and the printer’s power cord are plugged into separate outlets to avoid sharing a circuit with frequently turned-on and -off devices like copiers and air conditioners.
Avoid using outlets controlled by wall switches or automatic timers. Ensure the power cord is undamaged. Keep the computer away from sources of electromagnetic interference, such as speakers and cordless phone sockets, and ensure the grounding cable is properly connected.
Consumables Preparation (Ink Refilling): The printer comes with four ink tanks: cyan (C), magenta (M), yellow (Y), and black (K). Fill each tank with water-based ink one by one. When the ink level is low, a red light will illuminate, indicating that it is time to refill. Print file preparation:
Insert the RIP6 Maintop accessory into the printer computer and open the Maintop software on the desktop.
Click “File” in the upper-left corner to create a new file. In the dialog box that pops up, set the spacing to 0 and click “OK.”
Click the corresponding button to import an image from a computer folder. Adjust the height in “Import Image Settings” to complete the import.
Click the Print icon. On the print settings screen, click “Properties.” Set the resolution to match the print medium (e.g., 800×1200 dpi) and the ink settings to CMYK. Click “OK.”
Check “Print to File,” name the file, and select a save location to generate a .prn file.
2. Device Commisioning
Power on and connect to the software: First, turn on the print head power switch, then turn on the printer’s other power switches (printer power switch, air suction switch, and conveyor switch), and finally turn on the computer. Open the Epson A3+ print control software and click the “Connect” button to connect to the machine’s motor control board. When the notification pops up, click “OK.”
Adjusting the print head position and height:
Enter the software’s “Engineer” mode and use the “Up,” “Down,” “Left,” and “Right” buttons to adjust the print head position. The “Reset” button returns the print head to its rightmost and topmost positions.
Adjust the print head height according to the thickness of the print material. Place the print material under the print head and lower the print head to ensure a 3-5mm gap between the print head and the material as it moves along the conveyor belt (the print head height is adjustable from 0 to 110mm).
Parameter Settings: Set the parameters in the “Settings” interface of the print control software. Set the X position value to a positive number greater than 90mm (adjust the print start position as needed). The Y position is typically set to 0. Set the object length to the printed object length + 90mm. Enter the ink price to calculate consumables costs. Select the printer resolution that matches the one in the Maintop software (e.g., 1200x800dpi). You can also set the software language.
Ink Pumping: Move the print head unit to the ink station or capping area. Enter the “PM” interface of the software and click the corresponding “PUMP” button for the number of print heads (3 pumps for 1 A3+ print head) to pump ink. After pumping, wipe the print head surface with an alcohol-free, non-woven cloth to remove any residual ink. Do not wipe with paper towels or hard objects.
3. Test Print
After ensuring the ink extraction process is complete, click “Test Printing” in the print control software. When a notification pops up, click “OK.”
Place the paper in the designated position on the conveyor belt and turn it on (controlled by the “Delivery Switch”). Ensure the print head is at least 3mm above the printed material.
Perform test prints several times until the CMYK colors are clear and there are no missing or leaking colors. If flash printing is required, place the paper under the print head and test without turning on the conveyor belt.
4. Printing
In the Epson A3+ print control software, click “Import,” open the folder where you saved the .prn file, select the file you want to print, open it, and preview it to confirm that it is correct.
Click “START PRINT,” wait for a notification to pop up, click “OK,” turn on the conveyor belt (adjust the conveyor belt speed using the speed controller; standard speed is 10-12 m/min, adjustable from 0-48 m/min;
Different resolutions correspond to different speed ranges), place the printed material in the conveyor belt feed area, and begin printing. If the printer is equipped with an infrared dryer (such as for non-woven fabric printing), turn on the dryer during printing and keep the conveyor belt running. The dryer power supply must be connected separately from the print head power supply. Never place your hands under the dryer.
5. Post-Printing Operations
After printing is complete, turn off the infrared dryer (if used) and wait 30 minutes before closing the conveyor belt.
Close the ink and air vent valves above the print head, move the print head to the capping area, and replace the print head protective cap.
Close the print control software and computer, and finally turn off all power switches on the printer.
Clean the equipment, inspect the conveyor belt for foreign objects, keep tools and other items away from the print platform, and store printed products properly.
Conclusion
Making paper packaging a brand “plus point” starts with choosing the right printer
With environmental awareness gaining traction and consumers demanding higher-quality packaging, the demand for customized paper packaging is rapidly growing. Whether in the food, retail, or e-commerce industries, beautifully designed and well-printed paper packaging can significantly enhance a brand’s reputation. With its comprehensive product compatibility, high-efficiency output, and excellent cost-effectiveness, RobotJet single pass printing machines are the ideal choice for paper packaging printing.
They ensure that every piece of paper packaging accurately conveys brand value, helping companies stand out in a highly competitive market. If your business is facing challenges adapting to paper packaging printing or needs to improve the efficiency and quality of customized packaging, please contact us for detailed specifications and solutions for the RobotJet single pass digital printing machine and embark on a new journey of customized paper packaging!