The material used in PLA Nonwovens

PLA (Polylactic Acid) nonwovens are made using polylactic acid, a biodegradable and bio-based polymer derived primarily from renewable resources like corn starch, sugarcane, or cassava. These nonwovens are widely used in various industries due to their eco-friendly, compostable, and biocompatible properties.

Materials and Components in PLA Nonwovens:

Primary Polymer:

PLA (Polylactic Acid): The base polymer, made through the fermentation of sugars and subsequent polymerization of lactic acid.

Additives (Optional):

Plasticizers: To improve flexibility and softness.

Stabilizers: For heat, UV, or oxidative stability.

Colorants or Pigments: For visual customization.

Antibacterial agents: For hygienic or medical applications.

Processing Aids (Used During Manufacturing):

Spinning oils or finishes: Applied to fibers for better processability and reduced static.

Surfactants: Sometimes used to improve wettability.

Binder Fibers (in some cases):

Other biodegradable fibers like PBS (polybutylene succinate) or PCL (polycaprolactone) may be blended to adjust properties such as bonding strength or degradation rate.

Manufacturing Processes:

PLA nonwovens can be produced by:

Meltblown

Spunbond

Needlepunch

Thermal bonding

These methods influence the texture, strength, porosity, and end-use performance of the nonwoven.

Key Characteristics:

Biodegradable under industrial composting conditions

Breathable and lightweight

Good mechanical properties

Limited resistance to high temperatures (PLA softens around 60°C)

Applications:

Hygiene products (wipes, diapers)

Medical textiles (surgical gowns, masks)

Agricultural fabrics

Packaging

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