Worksheet A1
Material gentleness
The properties of area textiles depend on the properties of length textiles ( fibre, thread, yarn) and on the structure of the area textile. To be able to define the area weight (gentleness of the area weight) we have to measure the length, width and weight of the textile. Textile gentleness corresponds with the ratio of its weight per an area unit. Gentleness of area textiles is given by the g∙m-2 unit.
Task:
Define the area weight of each particular textile sample.
Tools:
Various samples, a meter, scales
Procedure:
Measure the sizes of the samples
Measure the weights of the particular samples
Calculate the area (S) of the samples
Calculate the gentleness of the area textile ρ_s
Physical properties:
Calculation of area textile gentleness:
Summary:
The area textile gentleness of the samples is:
1)
2)
3)