Merbonas material intelligence

Better choices start with better questions.

A practical guide to fibre specifications and manufacturing processes, created to support productive technical conversations.

01 / TECHNICAL BASICS

How to describe the fibre you need.

Clear specifications help avoid mismatches in processing and final product performance.

Polymer: PET, PP, PE, PA, regenerated cellulosic or specialist chemistry.
Fineness: Usually expressed in dtex or denier; 1 denier ≈ 1.111 dtex.
Cut length: Length in millimetres; must fit the production technology.
Profile & finish: Solid or hollow, crimp, siliconisation, wettability, colour, functional finish.
Proof: Ask for grade-specific specifications, test reports and certificates where relevant.

02 / MANUFACTURING PROCESSES

The same polymer can behave differently when its fineness, cut length, finish or cross-section changes.

Wet-laid: Short-cut fibre length, dispersion, wetting and process chemistry are central.
Spunlace: Fibre fineness, entanglement and absorbency influence the final substrate.
Needlepunch: Staple length, crimp and tenacity affect web integrity and mechanical properties.
Thermobond: Polymer combination, bond-temperature window and thermal stability need testing.
Filling: Loft, resilience, handle, opening method and wash performance matter.

03 / RESPONSIBLE SOURCING

Material selection should be supported by evidence instead of broad environmental promises.

Recycled content: Confirm whether the input is post-consumer or pre-consumer and how it is documented.
Certifications: Verify certificate validity, exact scope and whether the purchased grade is covered.
Bio-based: Bio-based is a feedstock description and does not itself prove biodegradability.
Biodegradability: Specific environmental conditions and test standards are required for credible claims.
Fit for purpose: Product performance, service life and processing yield remain relevant to material choices.

Specification support

Send us a brief, application sketch or target performance. We’ll help clarify the fibre requirements before sourcing.