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  • Coffee PLA

    Francofil

    New product

    10 Items

    34,95 €tax excl.
    42,29 €tax incl.

    Ask for information

    Bio/sustainable filament based on PLA and filled with coffee grounds.

    PLA café is a filament developed by Francofil, a French filament manufacturer known for its line of biocomposite materials, including PLA Scallop, PLA OysterPLA Mussel and PLA Wheat. 

    Parts printed with Francofil's biocomposite filaments.

    Image 1: Parts printed with Francofil's biocomposite filaments. Source: Francofil.

    This filament is considered Bio-composite, as it is composed of a matrix (PLA) and a filling of natural material. Biocomposite products provide an alternative to those products derived from oil.

    The matrix of this filament is composed of PLA (polylactic acid), and is combined with coffee grounds.

    Several initiatives are currently underway to reuse coffee grounds as a substrate or fertilizer, as it acts as a plant fertilizer. Its use as pellets or briquettes is also being researched and tested, as coffee grounds have an extraordinary heating potential, 20% higher than that of wood.

    In the case of PLA coffee, coffee grounds are used in combination with PLA to create a high quality 3D printing filament, being part of these recycling and reuse initiatives of waste materials from the coffee sector.

    PLA, which acts as the matrix of the filament, is a biodegradable plastic obtained from natural resources. In particular, it is obtained from starch extracted from corn, beet and wheat. PLA is, together with ABS, one of the most widely used materials in 3D printing today.

    Thanks to this PLA base, this filament maintains the mechanical properties and ease of printing of this material. PLA coffee does not require a hot bed, so it can be printed on almost any 3D FDM printer on the market. Furthermore, it does not release any harmful gases during the printing process.

    The colour of this filament is given naturally by its filling with coffee residues, while other filaments are added with artificial substances to achieve particular colours or finishes. Thus, PLA coffee has a dark brown tone with a certain translucency that gives it a characteristic and very striking finish.

    Due to its nature, the colour of the PLA coffee filament can vary from one batch to another, without implying any manufacturing defect.
    Another peculiarity of this filament is its marbled finish, caused by the tiny coffee particles it contains. Due to this particle content, it is recommended to use a nozzle with at least 0.5 mm outlet diameter to avoid possible clogging. Using a nozzle with a smaller outlet diameter could result in a jam and cause a print failure.

    Filament and piece printed with PLA coffee.
    Image 2: Filament and piece printed with PLA coffee. Source: Francofil.

    Thanks to its composition, this material offers very striking print finishes.

    The colour of the material once printed is a beige translucent brown with small particles of darker shade. The translucency of the material will be more visible if pieces without fillers and with thin walls are printed in 3D.

    This finish is very interesting for applications in the art, design or decoration sector among others.

    Currently, companies from various sectors are looking to generate a lower environmental impact. In this context, the biocomposite filaments developed by Francofil may be a suitable option, as they are made up of bioplastics and are additivated with natural substances.

    Vases printed with biocomposed filaments.

    Image 3: Vases printed with biocomposed filaments. From left to right: PLA coffee, PLA wheat, PLA oyster, PLA mussel and PLA scallop. Source: Francofil.

    To read more about the terms related to the environmental impact of the materials, we recommend reading the following article.

    Coffee PLA
    Eco / Ecofriendly
    Sustainable
    Biodegradable
    Compostable
    Biocomposite
    Recycled

    Table 1: Coffee PLA filament characteristics.

    All these characteristics make the brown PLA filament an ideal material for the development of artistic or decorative pieces, although it is also very useful for the manufacture of non-functional prototypes.

    * Despite being a biocomposite filament with a coffee charge, this filament is not edible.

    Impact strength (KJ/m2) 2.6
    Elongation at break (%) 1.8
    Tensile strength (MPa) 37
    Tensile modulus (MPa) 3200
    Flexural strength (MPa) 83
    Flexural modulus (MPa) 3800
    Softening temperature (ºC) 55
    Biodegradable Biodegradable
    Hide color variations (Hide color variations)

    To use the coffee PLA filament, we recommend using a printing temperature of between 180 and 210 ºC. As with standard PLA, this material does not require a warm bed, so the temperature of the appropriate printing base would be between 40 and 60 ºC. For better adhesion, a Buildtak printing base or Magigoo adhesive can be used. This will avoid the warping effect even on large pieces.

    As far as printing speed is concerned, it is recommended to print at a speed of between 40 and 60 mm/s. As usual, lower layer heights produce greater detail clarity, but the printing process will be slower.

    Due to its particle load, it is recommended to use a nozzle with an outlet diameter of at least 0.5 mm to avoid clogging.

    The coffee PLA filament is somewhat sensitive to moisture absorption, so it is recommended that the filament be kept in a vacuum pack with a desiccant bag or use a filament pack with a PrintDry vacuum seal. If you have been exposed to damp conditions, it is recommended that you use a filament dryer such as PrintDry II to dry the filament. Using the filament wet can cause degradation of the polymer, increase the brittleness of the material or affect the adhesion of layers when printing a 3D part.

    General information
    Manufacturer Francofil
    Material PLA coffee
    Format 750 g spool
    50 g pack
    Density 1.24
    Filament diameter 1.75 ó 2.85 mm
    Diameter tolerance ±0,05 mm
    Filament length ±252 m (Ø 1.75 mm 750 g)
    ±95 m (Ø 2.85 mm 750 g)
    ±16.8 m (Ø 1.75 mm 50 g)
    ±6.3 m (Ø 2.85 mm 50 g)
    Colour Dark brown
    RAL/Pantone -
    Printing properties
    Printing temperature 190 - 210 ºC
    Base/bed temperature Not required
    Chamber temperature Not required
    Coating fan Recommended
    Recommended print speed 30-40 mm/s
    Mechanical properties
    Izod impact resistance  (ASTM D256) 16
    Charpy impact resistance -
    Elongation at break (ASTM D702) 6 % 
    Tensile strength  (ASTM D702) 53 MPa 
    Tensile modulus (ASTM D702) 3600 MPa 
    Flexural strength (ASTM D790) 83 MPa
    Bending module (ASTM D790) 3800 MPa
    Surface hardness -
    Thermal properties
    Softening temperature(ASTM E2092) 55 ºC 
    Melting temperature -
    Specific properties
    Transparency (ASTM D1003) -
    Brightness value (ASTM D1003 for 20ºC) -
    Further information
    HS Code 3916.9
    Reel diameter (outside) 200 mm (0.75 kg spool)
    Reel diameter (inner hole)  55 mm (0.75 kg spool)
    Reel width 50 mm (0.75 kg spool)

    * The typical values detailed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend that you confirm the results and final properties with your own tests. For further information, please refer to the product data sheet.

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