ISO/FDIS 12945-3

DRAFT INTERNATIONAL STANDARD
ISO/DIS 12945-3
ISO/TC 38/SC 24 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2019-07-09 2019-10-01
Textiles — Determination of the fabric propensity to
surface pilling, fuzzing or matting —
Part 3:
Random tumble pilling method

Textiles — Détermination de la propension au boulochage, à l'ébouriffage ou au moutonnement des étoffes

Partie 3: Méthode de boulochage par projections aléatoires dans une chambre cylindrique

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Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 2

5 Apparatus and auxiliary materials .................................................................................................................................................... 2

5.1 Apparatus .................................................................................................................................................................................................... 2

5.2 Auxiliary materials .............................................................................................................................................................................. 3

6 Preparation of test specimens ................................................................................................................................................................ 4

6.1 Pretreatment ............................................................................................................................................................................................. 4

6.2 Sampling ....................................................................................................................................................................................................... 5

6.3 Fixation of specimen edges .......................................................................................................................................................... 5

6.4 Number of specimens and marking ...................................................................................................................................... 5

7 Preparation of apparatus ............................................................................................................................................................................ 5

7.1 Polychloroprene liners ..................................................................................................................................................................... 5

8 Conditioning and testing atmosphere ............................................................................................................................................ 5

9 Procedure..................................................................................................................................................................................................................... 6

10 Assessment of pilling , fuzzing and matting .............................................................................................................................. 6

11 Results ............................................................................................................................................................................................................................. 6

12 Test report ................................................................................................................................................................................................................... 6

Annex A (normative) Checking of apparatus and preparation of liners ......................................................................... 8

Annex B (informative) Alternative procedure ............................................................................................................................................ 9

Annex C (informative) Rationale ...........................................................................................................................................................................10

Bibliography .............................................................................................................................................................................................................................12

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different types of ISO documents should be noted. This document was drafted in accordance with the

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any patent rights identified during the development of the document will be in the Introduction and/or

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This document was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 24,

This second edition cancels and replaces the first edition (ISO 12945-3:2000), which has been

— Clause 9: visual assessment of pilling, fuzzing, and matting is carried out according to ISO 12945-4.

A list of all parts in the ISO 12945- series, under the general title Textiles- Determination of the fabric

propensity to surface pilling, fuzzing or matting, can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

Pills are formed when fibres on a fabric surface “tease out” and become entangled during wear. Such

surface deterioration is generally undesirable, but the degree of consumer tolerance for a given level of

Generally, the level of pilling which develops is determined by the rates of the following parallel

The rates of these processes depend on the fibre, yarn, and fabric properties. Examples of extreme

situations are found in fabrics containing strong fibres versus fabric containing weak fibres. A

consequence of the strong fibre is a rate of pill formation that exceeds the rate of wear-off. This results

in an increase of pilling with an increase of wear. With a weak fibre, the rate of pill formation competes

with the rate of wear-off. This would result in a fluctuation of pilling with an increase of wear. There are

other constructions where surface fibre wear-off occurs before pill formation. Each of these examples

demonstrates the complexity of evaluating the surface change on different types of fabric.

The ideal laboratory test would accelerate the wear processes a), b), and c) by exactly the same factor

and would be universally applicable to all fibre, yarn, and fabric types. No such test has been developed.

However, a test procedure has been established in which fabrics can be ranked in the same order of

Particular attention is drawn to Annex A which gives advice on the maintenance and checking of the

apparatus and liners. It is recommended that Annex A be studied prior to carrying out the procedure.

In Bibliography, some listed national standards have been taken into consideration as they refer to the

This part of ISO 12945 describes a method for the determination of the resistance to pilling, fuzzing,

and matting of textile fabrics using the random tumble pilling tester. This method is applicable to most

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 48, Rubber, vulcanized or thermoplastic — Determination of hardness (hardness between 10 IRHD and

ISO/DIS 12945-4:2019, Textiles — Determination of fabric propensity to surface pilling, fuzzing or matting

For the purposes of this document, the terms and definitions given in ISO/DIS 12945-4 and the

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

entangling of fibres into balls (pills) which stand proud of the fabric and are of such density that light

Note 1 to entry: This change can occur during washing, dry cleaning, and/or wearing.

roughing up of the surface fibres and/or teasing out of the fibres from the fabric, which produces a

Note 1 to entry: This change can occur during washing, dry cleaning, and/or wearing.

disorientation of the raising fibres from a napped fabric, which produces a visible surface change

when specimens either become entangled on the impeller or lie on the side of the cylinder wall resulting

Specimens are tumbled randomly, under defined conditions, in a lined cylindrical test chamber. Fuzzing,

NOTE Any special treatment of the laboratory sample, i.e. washing, cleaning could be as agreed upon

5.1.1 Device, consisting of one or several cylindrical test chambers, horizontally positioned, with the

inside dimensions of (152,4 ± 1,0) mm in depth and (146,0 ± 1,0) mm in diameter. In the centre of each

chamber is a horizontal shaft with cross rods (impellers) which rotate at 1 200 rpm (see Figure 1). This

device shall have a mean capable of sustaining a steady movement of the test specimens (thus, avoiding

jamming during the test); this functionality can be set by either an air jet (which can blow onto the

cylinder wall) or plastic blades (placed on the shaft, see Figure 1, which can move physically jammed test