METHOD OF MEASUREMENT OF ANISOTROPY OF CHANGES IN LINEAR SIZES OF FABRICS AT CUTTING

FIELD: light industry. ^ SUBSTANCE: method can be used for studying mechanical properties of fabrics for measuring anisotropy of changes in linear sizes at cutting. Lines of cutting in form of ox-eye daisy flower with length of 200 mm from edge are marked in different directions, for example, at ang...

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Bibliographische Detailangaben
Hauptverfasser:	MORILOVA LENA VALER'EVNA, KOLMOGOROVA TAT'JANA ALEKSANDROVNA, SMIRNOVA NADEZHDA ANATOL'EVNA, KHOKHLOVA EKATERINA EVGEN'EVNA
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	FIELD: light industry. ^ SUBSTANCE: method can be used for studying mechanical properties of fabrics for measuring anisotropy of changes in linear sizes at cutting. Lines of cutting in form of ox-eye daisy flower with length of 200 mm from edge are marked in different directions, for example, at angles of 0, 15, 30, 45, 60, 75, 90 ...345 to longitudinal direction on the same sample made in form of circle with diameter of 500 +-1 mm. Sample is cut along marked lines by 200 mm from edges. Then sample is fixed onto disc table and linear sizes of cuts of fabric are measured in 30 minutes. Changes in lengths of cuts (CLCalpha, %) depending on direction (alpha) are used to judge on anisotropy of changes in linear sizes. Test conditions are brought closer to real conditions of cutting when producing items. ^ EFFECT: higher information truth of characteristics. ^ 3 cl, 7 dwg, 1 tbl, 1 ex