When we think about 3D printing, we often focus on what it can create. Yet every printed object begins with another question: what is it made from, does it impact producer's life and what happens to that material when the object is no longer needed?
Most 3D-printing filaments are still plastics. Every failed print, support structure, calibration line and discarded prototype leaves behind physical waste. Although these pieces may be small, they can accumulate quickly especially in studios, workshops and businesses that print regularly.
Research reviewed by the United States Environmental Protection Agency has found that this process can release ultrafine particles and volatile organic compounds into indoor air. The type and quantity of emissions vary according to the filament, printing temperature, additives and printer conditions.
This does not mean that every 3D print is immediately dangerous. It means material selection and ventilation matter especially when printers operate in small, enclosed rooms.
Even when a filament is described as bio-based or non-toxic, responsible printing practices remain important. Printers should be used in a well-ventilated area, and the manufacturer’s safety and temperature guidance should always be followed.
Loopha approaches this question differently. Developed by PHA ECO GOODS, Loopha produces PHA-based 3D-printing filaments designed to bring natural materials, modern manufacturing and end-of-life responsibility closer together.
PHA is not simply conventional plastic mixed with plants. It is a family of bio-based polymers naturally produced by microorganisms through fermentation. Under suitable conditions, microorganisms can also metabolise PHA at the end of its useful life.
According to Loopha, its material is designed to biodegrade in several environments without leaving persistent microplastic residue. The company displays OK compost HOME and OK biodegradable MARINE certifications for its PHA material on its official filament page.
Giving Natural Residues a Second Life
Loopha goes beyond replacing one polymer with another. Its filament collection incorporates natural biomass and residual materials into its PHA base.
These include:
- Coffee grounds
- Tea residue
- Orange peel
- Grape skin
- Butterfly pea
- Sakura
- Shell powder
- Activated carbon
Instead of using synthetic colour alone to imitate nature, Loopha allows the material itself to influence the appearance of the finished print.
Coffee grounds produce an earthy brown. Tea residue creates a muted botanical green. Orange peel introduces a warm orange tone. Butterfly pea gives the filament a gentle blue, while shell powder creates a soft natural white.
The resulting surfaces have a quiet, matte character that feels different from the smooth, glossy appearance normally associated with plastic.
Because these ingredients come from natural sources, small differences in tone and texture may occur. These variations are part of the material’s character rather than something that must always be hidden.
Loopha describes the filament as tough, moisture-resistant and heat-resistant, with a published heat-deflection temperature of at least 85°C based on injection-moulded test data.
PHA nevertheless behaves differently from standard PLA. Printing may require careful temperature, flow and adhesion calibration, particularly to manage warping. Loopha recommends a nozzle range of 205–230°C, with approximately 220°C as a starting point.
These figures should be treated as guidance rather than universal settings because printer models and surrounding conditions vary.
Technology Does Not Have to Move Away from Nature
At AKAR, we do not believe that reconnecting with nature requires us to reject technology.
Technology can help us repair, customise and manufacture only what is needed. But it must be paired with better questions about material origin, human exposure and what happens after use.
Loopha brings these conversations into an industry still heavily dependent on persistent plastic. It combines microbial material technology with natural biomass, giving designers a way to create objects with a different material story.
It is not a perfect or universal solution. Printing still consumes energy. Failed prints still represent wasted resources. Biodegradation still requires the right conditions.
But Loopha marks an important change in direction.
*Declaration
All Loopha product images and brand materials featured in this article are used with permission from Loopha. Product details and environmental claims are based on information provided or published by the manufacturer.