BS EN ISO 2313-2:2021 pdf free
BS EN ISO 2313-2:2021 pdf free.Textiles一Determination of the recovery from creasing of a folded specimen of fabric by measuring the angle of recovery Part 2: Method of the vertically folded specimen.
This document specifies a method for determining crease recovery angle of fabric specimen while placing it in such a way that the folded line is vertical to horizontal plane for a specified time after removal of creasing load.
This document is applicable for all kinds of textile fabrics.
2 Normative references
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 139. Textiles — Standard atmospheres for conditioning and testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— I EC Electropedia: available at htt ps://www.electropedia.org/
3.1 crease recovery angle
angle formed between the two limbs of fabric specimen previously folded under prescribed conditions, at a specified time after removal of the creasing load
Note ito entry: In this method, rapid crease recovery angle is obtained at 15 salter removal of the creasing load. Note 2 to entry: In this method, delay crease recovery angle is obtained at 5 mm after removal of the creasing load.
4 Principle
The folded specimen is maintained under a specified load for a specified time. After removal of creasing load, the specimen is placed in such a way that the folded line is vertical to horizontal plane for a specified time, and then the crease recovery angle is measured.
Attention is drawn to the fact that for some types of fabrics, the limpness, thickness and tendency to curl of the specimen can give rise to very ill-defined crease recovery angles, and therefore an unacceptable lack of precision in making measurements.BS EN ISO 2313-2 pdf free download.
