Tarpaulin density test method
Dec 18, 2015
Tarpaulin density test method:
(A) the direct measuring method: direct measuring method is with a photo lens or mirror to fabric density analysis completed. Fabric density analysis mirrors the scale length is 5cm, in the analysis below the lens, a long piece of glass engraved with a red line, in analysis of fabric density, the moving lens, the glass on-chip red line and the red line on the graduated scale and alignment between the two yarns, with this as a starting point, move yarn number number of sides of the camera until the 5cm tick. The output of yarn is multiplied by 2, 10cm fabric density values.
In points when the number of yarns, starting with the Central between the two yarns, if the number at the end, more than 0.5, while less than a root should be 0.75 a; if less than 0.5 root, root is at 0.25. Fabric density shall be measured 3-4 data, and then take the arithmetic mean for the results.
(B) indirect testing method: this method is applicable to high density, yarn fabric of special rules for small organizations. First parsed loop warp weaves and their organizations (organizations number of picks to round), and then multiplied by the number to round in the 10cm, the product which is obtained by (WEFT) yarns density.
