How to Choose Spot Color vs CMYK in Flexo Printing
2026-03-05
Flexographic printing has earned the title of "green printing" thanks to its odorless, non-toxic, environmentally friendly water-based ink, low volatile organic solvents (VOC) and flexible printing plates. Its high-speed operation helps nutritional supplement labels, syringe packaging film, sterilization pouches, and other medical and healthcare materials to deliver key information and functions. In the field of pharma and healthcare packaging, flexo printing machine has occupied an irreplaceable position. This article will deeply analyze the reasons from five aspects: environmental regulations, substrate adaptability, production cleanliness, printing accuracy, and production efficiency.

Label Printing Machine for Protein Powder Stickers
Medicine blister foil, pharmaceutical flyer and other pharma and health products and packaging have high requirements for low odor, low migration, non-toxicity and environmental protection.
The water-based or low migration UV inks used in flexographic printing machines meet the requirements of EU REACH, US EPA and China VOC limits and are safe and non-toxic. Compared with traditional solvent-based inks, water-based inks reduce VOC emissions by 70% to 90% and do not contain benzene and ketone solvents. Its heavy metal content meets the world's green packaging standards and can be used directly in pharmaceuticals. At the same time, water-based ink reduces chemical residues and guarantees the safety of pharma and healthcare products.

Stack Type Flexo Press for Disinfecting Paper Pouches
Flexo printing machinery is suitable for a wide range of materials such as films (e.g. diaper outer wrap film), foils (e.g. capsule blister), paper (e.g. pharmaceutical leaflet), paper containers (e.g. medical paper pouches), nonwovens (e.g. disposable isolation gowns) and composite and functional materials (e.g. sanitary napkin back sheet) , and can be easily and perfectly adapted to the diverse requirements of pharma and healthcare products and packaging.

CI Type Flexographic Press for Adult Diaper Back Sheet
The closed mechanical structure of flexo presses, the high efficiency of the drying system and the high degree of automation determine its high production cleanliness, which meets the hygienic requirements of the pharma and healthcare industry.
Closed Mechanical Structure
The flexographic printer has a closed structure, and the ink system and printing unit have less pollution, making it easy to install in a production workshop that complies with GMP standards.
Efficient Drying System
According to the characteristics of the substrate, the flexography machine is equipped with a suitable hot air drying system, IR drying system or UV-LED drying system to achieve instant drying of printed products such as pharmaceutical stickers and sanitary pad outer wrap film after printing, minimize dust and solvent residues, and ensure the cleanliness of printed products.

Stacking Flexo Printing Machine for Patient Wristbands
Highly Automated Device
The high automation feature of flexo printer is achieved by multiple automation devices and control systems, which reduces the demand for manpower, reduces manual contact, and thus reduces human pollution.

Central Impression Flexographic Printing Press for Tissue Packaging Film
The special rigor of the pharma and healthcare industry determines the extremely high requirements for information transmission of products and packaging such as wet wipes packaging films and self-sealing sterilization pouches. Flexo printing presses control the ink layer thickness through high-precision anilox rollers, monitor the printing quality in real time through video inspection systems, and cooperate with servo positioning systems to control the overprint deviation within ±0.15mm, achieving high-precision printing of multiple images and texts on a limited substrate area.

Flexo Label Printing Machine for Lab Sample Tube Labels
The market demand for pharma and healthcare products and packaging such as sterilization pouches, disposable medical face masks, medical leaflet labels is huge. As consumables, it requires extremely high production efficiency from manufacturers. Mengji's stacked flexo printing machine has a printing speed of up to 158m/min. It is the fastest stacking unit flexographic printing press on the market. In addition, Mengji's high-end series of central impression flexography printing machine can reach a maximum speed of 300m/min, which greatly meets the needs of manufacturers for large-scale continuous production.

Central Cylinder Flexo Printing Machine for Medical Mask Pouches
The innovation and development of flexographic printing machine have brought products that meet the standards, such as dental self-sealing bags, sterilized alcohol pad packaging films, and surgical disposable sterile gowns, into our lives. The stringent red lines of environmental regulations, the infinite possibilities of substrate adaptation, the zero-pollution commitment of clean production, the rigorous pursuit of micron-level precision, and the miracle of efficiency under high-speed operation - it is the green coordinates interwoven by these five dimensions that make flexo press printing irreplaceable in the field of pharma and healthcare packaging.