04

Product Engineering

Build the product as a coordinated system.

Product engineering brings material layers, absorbent architecture, fit and packaging into one buyer-led specification—so individual choices can be reviewed in context.

Detailed material study showing layered nonwoven and absorbent structures

The product system

Every layer has a role. Every choice creates a trade-off.

A hygiene product is not a stack of isolated materials. Surface feel, acquisition, distribution, core behavior, containment, fit and pack presentation interact with the intended user experience and commercial brief.

Engineering begins by making those relationships visible, then translating the agreed direction into a reviewable specification.

Exploded architecture

A conceptual map of the absorbent product system.

Material system · conceptual view

Illustrative spacing · not to scale
Architecture discussion only — not scientific test data
01

Top sheet

The skin-contact surface and first point of acquisition.

Surface character, softness direction, fluid passage and intended wear experience.
02

Acquisition / distribution layer

A transition layer that helps move fluid away from the surface and into the absorbent structure.

Acquisition direction, distribution behavior, resilience and coordination with the core.
03

Absorbent core

The central absorbent structure, defined around use context and the agreed performance brief.

Core geometry, integrity, bulk, acquisition interface and retention priorities.
04

SAP / pulp system

A core-system decision where superabsorbent polymer and pulp roles are evaluated together.

Distribution, integrity, product thickness and buyer-defined performance requirements.
05

Back sheet

The outward barrier layer and product-facing interface with garments or the external environment.

Barrier direction, breathability requirement, feel, print or film direction and seal compatibility.

Fit & containment

Construction extends beyond the absorbent stack.

Elastic, fastening and leak-containment systems are considered where relevant to the product format. Their geometry and requirements are defined for the specific brief.

Conceptual construction diagram representing diaper fit and containment architecture

System layers

  1. 01
    Waist system

    Fit and extension direction where relevant.

  2. 02
    Leg elastics

    Placement and fit requirements for the format.

  3. 03
    Leak guards

    Containment geometry where included in the brief.

  4. 04
    Fastening

    Tape or pull-on construction direction.

Conceptual construction illustration

Callout positions are explanatory controls, not measurements, tolerances, test outcomes or evidence of performance.

Conceptual packaging engineering diagram with primary and secondary pack forms

Packaging engineering

The pack is part of the product system.

Packaging discussions connect product count, compression, primary material direction, artwork zones, language requirements, secondary cases and distribution assumptions. Final configurations are confirmed against the buyer brief and supply program.

  • 01Pack count and assortment
  • 02Primary pack structure
  • 03Artwork, claims and language zones
  • 04Case configuration and markings
  • 05Destination-channel requirements

Development logic

Move from intended outcome to reviewable architecture.

  1. 01

    Frame

    Define user, occasion, market and channel.

  2. 02

    Prioritize

    Rank performance, fit and commercial requirements.

  3. 03

    Architect

    Map layers, components, construction and pack direction.

  4. 04

    Review

    Evaluate the concept against the agreed buyer brief.

  5. 05

    Validate

    Confirm methods, criteria and evidence for the program.

Evaluation methods, performance criteria and technical evidence are agreed for the specific product program; they are not inferred from these diagrams.

Custom product development

Bring the user outcome, market position and technical brief.