THE MATERIAL

The material behind the difference.

Ceritella combines structure-preserving cotton preparation with purposeful yarn, construction and finishing choices. The platform develops natural cotton softness and mechanical stretch and recovery without added softeners or elastomers, with performance specified and evaluated by construction.

Knit cotton swatches, a cone of cotton yarn and a measuring rule on a work table.

One platform. Distinct material experiences.

Ceritella fabric families bring the platform into focus around different product needs. Each construction is developed to its intended material experience and performance specification.

Folded ivory Ceritella Native cotton knit.

Ceritella Native

Natural softness. No added softeners.

100% cotton, developed for a supple, inviting handfeel without a chemical softening finish.

Explore Native
A person in an oatmeal cotton tee, mid-movement.

Ceritella Comfort

In development

Draft focus: stretch and recovery

Draft description to be written.

Explore Comfort
Soft, airy ivory cotton fibers in close detail.

Ceritella Climate

In development

Draft focus: moisture behavior

Draft description to be written.

Explore Climate

Performance begins with structure.

Cotton’s behavior reflects both its native fiber architecture and the way it is developed into fabric. Ceritella begins with preparation designed to preserve more of that architecture, then builds upon it through material engineering.

FIBER CROSS-SECTION

Dashed box: the outer layers shown enlarged.

OUTER LAYERS, ENLARGED

Cuticle

Thin outermost layer containing waxes and other non-cellulosic material.

Primary cell wall

Thin cellulose wall. With the cuticle, it holds most of the fiber’s non-cellulosic components.

Winding layer

Transitional layer covering the secondary wall, similar to it in structure.

Secondary cell wall

Almost entirely cellulose, built in layers. Most of the fiber.

Lumen

Central canal remaining from the living fiber cell.

Schematic illustration. Not to scale.

Layer descriptions after Boykin, J.C. (2005), “A review of the structure of the cotton fiber,” Proceedings of the Beltwide Cotton Conferences, USDA-ARS.

Scanning electron micrograph of raw cotton fibers at higher magnification, with the original 10 micrometre scale bar. Salem et al. 2022, Figure 5.

Raw cotton

Scanning electron micrograph of scoured cotton fibers at higher magnification, with the original 10 micrometre scale bar. Salem et al. 2022, Figure 5.

Scoured cotton

Published microscopy illustrates changes in cotton’s surface architecture following conventional scouring. These are literature images, not a comparison of Ceritella production samples.

Scanning electron micrographs cropped from Figure 5 of Salem, R.T.A., Thompson, K. and Uttamlal, M. (2022), “Bleaching cotton in textile conservation: a closer look using atomic force microscopy,” Heritage Science 10, 195. doi.org/10.1186/s40494-022-00830-2. Licensed under CC BY 4.0 (creativecommons.org/licenses/by/4.0). Cropped from the original figure; no other changes.

Preservation is the foundation. Engineering is the innovation.

No single input defines Ceritella. The finished material emerges from coordinated decisions about cotton, yarn, construction, processing and mechanical finishing.

These decisions shape the intended handfeel, movement, dimensional stability and other properties of each construction. Verification assesses the finished fabric against the claims made for it.

  1. 01

    Cotton selection

    Aligned with the target material experience.

  2. 02

    Yarn engineering

    Establishes the fabric’s foundation.

  3. 03

    Fabric construction

    Shapes handfeel, movement and stability.

  4. 04

    Controlled processing and mechanical finishing

    Carries the intended material character through development.

  5. 05

    Verification

    Evaluates construction-specific properties.

Measured material behavior.

Ceritella development combines instrumental testing, laboratory evaluation and mill-scale assessment. Results are presented by study so the construction, comparison and test conditions remain clear.

28%

Greater length extensibility

36% → 46% at 10 lbf

Study A

39%

Lower dry coefficient of friction

Approximately 0.23 → 0.14

Study A

16%

Lower surface-softness indicator

TSA TS7: 8.456 → 7.090. Lower indicates a softer surface.

Study B

20%

Higher air permeability after three washes

Approximately 74.5 → 89.3

Study A

Results from separate comparative evaluations. Findings describe the tested samples and are not automatic claims for every Ceritella construction or fabric family.

A · Controlled cotton-interlock comparisonExtensibility, friction, airflow, strength

SAMPLE

100% cotton interlock, 200 GSM

COMPARATOR

Same cotton, construction and downstream engineering, with conventional caustic preparation

METHODS

ASTM D4964, D1894, D737, D6797

CONDITION

As received, except air permeability (after three washes)

UNITS

Percent, coefficient of friction, lbf. Air permeability as reported.

MeasurementMethodConventionalCeritella
Length extensibility at 10 lbfASTM D4964Approx. 36%Approx. 46%
Dry coefficient of frictionASTM D1894Approx. 0.23Approx. 0.14
Wet coefficient of frictionASTM D1894Approx. 0.28Approx. 0.10
Air permeability, after three washesASTM D737Approx. 74.5Approx. 89.3
Bursting strengthASTM D6797Approx. 101.7 lbfApprox. 113.1 lbf

One lot of each fabric. Friction was measured between the fabric and the test surface, not skin. Values are approximate as reported in the Ceritella Performance Validation summary.

B · Instrumental handfeel evaluationemtec Tactile Sensation Analyzer

SAMPLE

Ceritella, 100% cotton knit, 160 GSM

COMPARATOR

Conventional 100% cotton knit finished with a synthetic softener. Not the same starting fabric.

INSTRUMENT

emtec Tactile Sensation Analyzer (TSA)

EVALUATOR

Harrie Schoots

DATE

August 2026

UNITS

TS7 indicator, mm/N, µJ, percent

CONDITION

As received. One reading per fabric.

MeasurementWhat it indicatesConventionalCeritella
Surface-softness indicator, TS7Lower indicates a softer surface8.4567.090
Flexibility, DHigher indicates a more flexible fabric3.26 mm/N3.90 mm/N
Hysteresis, HEnergy lost during deformation368 µJ211 µJ
Recovery, RHigher indicates fuller recovery72%80%

One reading per fabric. Recovery rose by 8 percentage points. This is a separate evaluation from Study A, on a different fabric.

C · Performance through launderingInitial, 10 and 20 washes

SAMPLE

Ceritella, 100% cotton interlock, 200 GSM

LAUNDERING

AATCC 135 home laundering, top-loading machine, 30 °C normal cycle, flat dry

LABORATORY

TÜV SÜD Bangladesh, report BD/T(F)/26/025804, 6 August 2026

COMPARATOR

None shown. Fabrics tested alongside differ in weight, construction or composition.

MeasurementMethodInitial10 washes20 washes
Bursting strengthASTM D3786104 PSI101 PSI101 PSI
Elongation at 10 lb, widthASTM D4964134.4%80.5%74.3%
Elongation at 10 lb, lengthASTM D496431.9%28.2%27.8%
Dimensional change, lengthAATCC TM135Not applicable-4.9%-7.5%
Dimensional change, widthAATCC TM135Not applicable+4.3%+4.6%
Color change, grey scaleAATCC 135 appearanceNot applicable44
PillingAATCC 135 appearanceNot applicableNone observedNone observed
SpiralityAATCC TM179Not applicable1.4%2.4%

One sample, single examination. Bursting strength retained about 97% of its initial value after 20 washes. Elongation fell and the fabric shrank in length while growing slightly in width. Recovery was not reported as a percentage in this study, and elongation is not recovery. Retained strength does not indicate retained softness.

D · Moisture behaviorFresh and after washing

SAMPLE

Same fabrics as Study A, 100% cotton interlock, 200 GSM

COMPARATOR

Conventional caustic preparation

METHODS

Reported brand-internal measurements

UNITS

Minutes, percent, g/h

CONDITION

Fresh and after washing

MeasurementConditionConventionalCeritella
Drying timeFreshApprox. 41 minApprox. 24 min
Drying timeAfter washingApprox. 49 minApprox. 48 min
Wet take-upFreshApprox. 105%Approx. 46%
Wet take-upAfter washingApprox. 137%Approx. 128%
Evaporation rateAs reportedApprox. 0.098 g/hApprox. 0.116 g/h

After washing, drying times were similar and the fresh difference in wet take-up largely narrowed. Reported brand-internal measurements.

E · Mill process assessmentCommercial mill trial, Pakistan, July 2026

SAMPLE

100% cotton interlock, 200 GSM

COMPARATOR

The same mill’s regular process

MEASURED

Recorded process cycles and utility consumption

DATE

July 2026

UNITS

Percent change; hours and minutes

48%

Lower steam consumption

22%

Lower water consumption

21%

Lower process time

7 h 41 min to 6 h 04 min

Results from one commercial mill trial compared with that mill’s regular process. Not universal savings, a life-cycle assessment or a fabric certification.

Supporting reports are available on request.

Download technical summary (PDF)

Further Context

A closer look at the structures, measurements and development choices behind the material.

Cotton’s cuticle and cell-wall architecture

Each cotton fiber is a single plant cell. From the outside in, it has a thin cuticle containing waxes, a primary cell wall, a winding layer, a secondary wall that is almost entirely cellulose and makes up most of the fiber, and a central lumen. Most of the fiber’s non-cellulosic components sit in the cuticle and primary wall, and conventional chemical scouring is designed to remove them. That is why preparation choices that act on these outer layers matter.

Sources: Boykin, J.C. (2005), Proceedings of the Beltwide Cotton Conferences, USDA-ARS. Salem, R.T.A. et al. (2022), Heritage Science 10, 195.

Mechanical stretch and recovery in cotton

Without elastomeric fibers, stretch in a cotton fabric comes from its structure: how the yarn is spun and twisted, how the fabric is knitted or woven, and how it is set during finishing. Two separate measurements describe it. Elongation is how far a fabric extends under a defined load, such as 10 lbf in ASTM D4964. Recovery is how much of that extension it gives back once the load is released. A fabric can stretch a long way and recover only partly, so the two are always reported separately.

Wetting, wicking, evaporation and airflow

These terms describe different behaviors. Wetting is how quickly liquid is taken into the fabric surface. Wicking is how far liquid travels through the fabric, often measured vertically. Evaporation rate is how quickly absorbed moisture leaves the fabric, and drying time is how long the fabric takes to reach a defined dry point. Air permeability is how much air passes through the fabric under set conditions. A result in one does not predict the others, and a shorter wicking distance is not, on its own, better or worse.

Why construction changes performance

The same cotton can perform very differently depending on fiber selection, yarn count and twist, knit or weave architecture, fabric weight and finishing. Interlock, jersey and rib knits, for example, extend and recover differently because of their structure alone. That is why Ceritella results are reported by study, with the construction that was tested, and are not assumed to carry over to other constructions.

Laundering and garment care

Fabric properties can change with laundering. Dimensions can shrink or grow, stretch can decrease and surface appearance can change. Wash results describe the tested fabric under the stated wash conditions. Care for a finished garment follows the garment brand’s care label.

Material qualification and verification

Each Ceritella construction is developed toward an intended specification for properties such as handfeel and movement. Qualification compares the finished fabric with that specification, using methods matched to each property: standardized test methods for properties such as friction, strength and dimensional change, instrumental measurement for handfeel, and wash testing for change over laundering.

Ongoing development and validation

Ceritella development continues across constructions and end uses, with further testing to assess material behavior and consistency.

Develop the right material for your collection.

Tell us your target handfeel, construction, weight and performance requirements. We’ll discuss suitable Ceritella materials and the development path for your product.

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