Maya Ellison
Infused printing on plastics, also known as Infused Imaging™ technology, is a process that integrates custom patterns, colours, images, and textures into the production of thermoplastics. Unlike traditional printing methods, infused printing embeds imagery into the thermoplastic material itself, resulting in a more durable and scratch-resistant product. This technology is used in 3D printing for complex rapid prototyping and manufacturing, as well as in industries such as signage, retail graphics, and personal protection equipment (PPE). The process offers benefits such as increased durability, faster manufacturing, and the ability to create bespoke designs without sacrificing strength. Additionally, infused printing on plastics can involve the use of metal-infused, carbon fibre-infused, glass-infused, or nanoparticle-infused filaments, enhancing the functionality and aesthetics of the final product.
| Characteristics | Values |
|---|---|
| Traditional printing on plastic | Capped image on top of plastic that is prone to damage |
| Infused printing on plastics | Integrates custom patterns and designs into the thermoplastic sheet |
| Durability | Retains durability and scratch resistance |
| Manufacturing process | Cuts out the process of adding a cap layer, speeding up the overall manufacturing process |
| Design | Customizable, can be bent, thermoformed, backlit, transparent, die-cut, router cut, flexible, or self-standing rigid |
| Longevity | Lasts longer and is more weather-resistant than paper |
| Aesthetics | Offers an elegant look, can be printed with white ink |
| Metal-infused plastic filament | Metal particles are infused within a wax polymer, plastic is removed from the final prints leaving mostly metal behind |
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What You'll Learn
Infused Imaging™ technology
Plastic is a highly versatile printing base for a range of applications. It is a popular choice for signage and retail graphics, as well as for Personal Protection Equipment (PPE). It is durable, long-lasting, and highly customisable.
However, traditional printing methods place an image on top of the plastic sheet, making it susceptible to damage. Infused Imaging™ technology revolutionises this process by integrating custom patterns and designs directly into the thermoplastic sheet during production. This proprietary process embeds imagery, colour, and texture into the thermoplastic material, resulting in a product that is both visually appealing and highly durable.
The key advantage of Infused Imaging™ is its ability to retain the strength and scratch resistance of the plastic sheet. By infusing the design into the material itself, the final product is resistant to chipping, fading, and delamination, ensuring a longer-lasting finish. This process also streamlines manufacturing by eliminating the need for a separate cap layer, as the design is created simultaneously with the thermoforming of the plastic part.
Overall, Infused Imaging™ technology represents a significant advancement in plastic printing, combining aesthetics and functionality to meet the diverse needs of businesses and consumers alike.
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Pros of infused printing
Infused printing on plastics, including metal-infused printing, offers several advantages. Firstly, it provides excellent durability and impact resistance, making it a durable option for various applications. The process is also easy to use and widely accessible, making it the most commonly used print plastic. It exhibits good resistance to UV degradation, ensuring that products remain stable over time. Additionally, infused printing on plastics offers good rigidity, and low flammability, enhancing safety.
Metal-infused printing on plastics offers specific benefits in certain contexts. For example, metal-infused filament for metal parts is a unique type of composite filament. It consists of a wax polymer with metal particles evenly distributed within it. This process allows for the creation of metal parts with a high percentage of metal content, typically around 80%. Metal-infused printing enables the production of parts with specific weight requirements, as the inclusion of metal increases the overall weight of the final product.
Another advantage of infused printing on plastics is its versatility. Pad printing, for instance, can be used on curved, convex, concave, and recessed surfaces, providing wraparound printing on three-dimensional objects with sharp and well-defined edges. This technique is ideal for long-run or high-spec products. Screen printing, on the other hand, is suitable for large or long designs with blocks of colour and large fonts, commonly used for promotional T-shirts.
Furthermore, infused printing on plastics offers design flexibility, particularly in the medical industry. 3D printing with infused plastics allows for the creation of complex internal voids, which would be challenging or costly with other technologies. This flexibility enables the development of custom, patient-matched implants, prostheses, and bioprinting of organs, contributing to personalized medical care.
While there are also disadvantages to infused printing on plastics, the pros include enhanced durability, design flexibility, weight options, and accessibility, making it a valuable technique in various industries.
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Cons of infused printing
While infused printing on plastics has its advantages, there are several potential disadvantages or "cons" to consider:
Safety Concerns: Some materials used in infused printing, such as carbon fiber, can pose health and safety risks during the printing process. Carbon fiber filaments, for instance, can release microscopic fibers into the air, which can be harmful if inhaled and irritate the respiratory system. Additionally, high temperatures involved in metal printing can be dangerous without the proper safety equipment and protocols. Therefore, metal printing is typically recommended to be done in professional facilities equipped with the necessary safety measures.
Limited Structural Integrity: Metal-infused plastics may not provide significant structural advantages. Reviews and opinions suggest that while metal-infused plastics offer aesthetic benefits, they may not provide substantial improvements in terms of structural strength or performance. This could be a disadvantage when considering the cost and availability of metal-infused filaments.
Post-Processing Requirements: Metal-infused plastic filaments often require thorough post-processing to remove any remaining plastic components and condense the metal. This additional step can increase the time, complexity, and cost of the overall printing process.
Availability and Cost: Metal-infused filaments, particularly those with a high percentage of metal content, may not be readily available for desktop 3D printers. Industrial-grade metal filaments with high metal content can be costly due to the price of the metal powder. This cost consideration may limit the accessibility and feasibility of using metal-infused filaments for certain applications.
Environmental Impact: While plastics used in printing may be recyclable, the process of infused printing can introduce additional environmental concerns. The use of certain resins and volatile organic compounds (VOCs) in the printing process can have negative environmental implications if not properly managed.
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Metal-infused printing
The metal powder used in the infusion process can vary, with common options including copper, bronze, brass, and stainless steel. The percentage of metal powder in the filament can also vary depending on the desired properties of the final product. A higher percentage of metal powder will result in a part that is heavier and has a more metallic finish. For example, metal filaments produced for making metal parts must contain a high percentage of metal powder, typically around 80%.
One of the key benefits of metal-infused printing is the ability to create parts with improved durability and structural integrity. The embedded metal particles provide better resistance to wear and impact, making the parts suitable for more demanding applications. Additionally, metal-infused printing can be used to improve the heat resistance of parts, as metal is a good conductor of heat.
However, there are also some challenges associated with metal-infused printing. The metal particles can be abrasive and wear down regular nozzles over time. It is recommended to use a printer equipped with a hardened steel nozzle to mitigate this issue. Additionally, the high density of metal particles can affect the bridging performance of the filament, making it difficult to print parts with large bridging regions.
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Nanoparticle-infused printing
In nanoparticle-infused printing, researchers from the Dhaka University of Engineering and Technology have developed and analysed six new filaments made from a combination of recycled plastics and nanoparticles. Two of these filaments feature a graphene coating. By utilising machine learning techniques, the researchers were able to correlate printing parameters with the desired characteristics of the final product. This approach enables the optimisation of various properties, including microstructure, surface texture, mechanical behaviour, and thermal characteristics.
The benefits of nanoparticle-infused printing extend beyond just customisation. The resulting materials exhibit enhanced mechanical strength, improved elongation, and superior thermal properties. For instance, graphene-coated samples demonstrated improved performance in roughness testing. Furthermore, the integration of nanoparticles can enhance the durability of the printed objects, making them more resistant to chipping, fading, and delamination compared to traditional capped printing methods.
Overall, nanoparticle-infused printing offers a unique approach to creating new 3D materials with enhanced characteristics. By leveraging recycled plastics and nanoparticles, along with machine learning optimisation, this technology promises to revolutionise manufacturing processes and open up new possibilities for customisation and durability in a wide range of industries.
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Frequently asked questions
Infused printing on plastics, or Infused Imaging™, is a process that integrates custom patterns and designs into the production of thermoplastics. This is done by embedding imagery into the thermoplastic material itself, rather than adding a cap layer on top of the plastic sheet. This results in a more durable product that is resistant to scratches, chips, and fading.
Infused printing on plastics offers several advantages over traditional methods of printing on plastics. Firstly, it enhances the durability and scratch resistance of the plastic, ensuring that the product can withstand various conditions. Secondly, it streamlines the manufacturing process by eliminating the need for a separate capping step, as the design is created simultaneously with the thermoforming of the plastic part. Additionally, infused printing on plastics allows for the creation of bespoke environments, giving designers, manufacturers, and their clients greater flexibility in terms of colour, imagery, and texture, without compromising the strength of the material.
Infused printing on plastics offers superior durability compared to traditional methods where an image is capped on top of the plastic. With infused printing, the imagery is embedded within the material, making it resistant to scratching, chipping, and fading. Traditional methods are more susceptible to damage, as the capped image can be easily dinged, scratched, or peeled, potentially compromising the aesthetics and integrity of the product.
