WOOLMARK SPECIFICATIONSPECIFICATION AC-1: 2016

COOL WOOL GARMENTSPRODUCTS
Cool Wool may be applied to the following Woolmark and Woolmark Blend logo garments that meetthe criteria detailed in this specification:• sweaters and cardigans• coats• jackets• suits and trousers• costumes• skirts• dresses• kimonos• shirts and blouses• underwear.
Cool Wool cannot be used on socks.
Wool Blend labelling cannot be used on Cool Wool products.

WOOLMARK SPECIFICATION
AC-1 COOL WOOL GARMENTS

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Cool Wool criteria for all products
Products must meet all requirements under Specification AW-1: Woven Apparel Products or AK-1:
Knitted Apparel Products as appropriate.
Property
Cool Wool: yarn production system
Mean wool fibre diameter (µm maximum)
Cool Wool: product surface
2

Fabric weight (g/m : maximum)
Alternative criteria for knitted products
Resultant yarn count (minimum)•Test method

Requirements–Worsted

22 or 23 or 24Blends TM24 only

22.5

–

Clear, clean

13190

ISO 7211-5: 1984

12Nm

This table must be read in conjunction with the notes that follow.

NOTES
1. Woolmark Blend. Specifications for Woolmark Blend products are the same as those for
Woolmark, except where indicated.
2. Blends with other fibres. Only blends of wool with natural fibres (cellulosic or animal fibres
including silk) are permitted for use with the Cool Wool label in conjunction with Woolmark Blendlabels.
All requests to use Cool Wool on fabrics that meet these specifications but contain synthetic or
man-made fibres (with the exception of elastane-type filaments) must be referred to The
Woolmark Management Group for consideration. Such fabrics are unlikely to be approved unlessthe synthetic fibre blend is judged to be innovative.
Inclusion of elastane–type filament to impart stretch characteristics to the fabric is permitted. The
Woolmark logo cannot be used on elastane-containing garments, except in those countries
covered by Specification F-4 ‘Fibre Content of Woolmark Products’.
3. Mean wool fibre diameter. All measurement methods have a tolerance, which is included in thecriterion of an absolute maximum mean fibre diameter for wool fibres of 22.5µm. In the case of
Woolmark Blend products, Woolmark TM24 Wool fibre diameter – projection microscope method’must be used. Do not use TM22 ‘Mean fibre diameter of wool in pure wool products using
Laserscan’ or TM23 ‘Mean fibre diameter of wool in pure wool products using OFDA100’ toevaluate Woolmark Blend products because neither apparatus distinguishes between wool andnon-wool fibres.
4. Fabric surface. The surface of the fabric shall be smooth and relatively free from protrudingfibres.
5. Fabric weight. A fabric weight of 190g/m² is equivalent to ~285g/linear metre based on a fabricwidth of 1.5m. This limit represents the required maximum of 187g/m² (~280g/linear metre) with a3g/m² allowance for testing error.
6. Sampling. The sample for testing must include at least a full pattern repeat.

WOOLMARK SPECIFICATION
AC-1 COOL WOOL GARMENTS

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Alternative mandatory criteria for fully-fashioned knitwear to be used only if fabric weightexceeds 190g/m².
•Knitted apparel products. A composite specimen, including all yarn types, must be evaluated in
the proportion in which they appear in the fabric.

•Yarn count. Cool Wool knitted products must be knitted using yarn with a resultant count ofNm12, (e.g. 24/2, 36/3 or finer). Resultant count is defined as the overall count of the yarn in theknitted loop. It is the resultant value of all single yarns present in the loop, whether these are
twisted together or fed to the knitting elements in parallel.

WOOLMARK SPECIFICATION
AC-1 COOL WOOL GARMENTS

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