was 14 3 mils the material had a thread count of 76 threads per inch in the machine direction and only 30 threads per inch across the machine the material was again made from a 65 35 mixture of polyester and cotton when the final coating was applied it had an average density of 7 4 oz per sq yd and a caliper of 10 6 mils following calendering next a material having a caliper of 17 6 mils was used the material had a thread count of 84 threads per inch in the machine direction but only 28 threads per inch in the cross direction and was 100 cotton duck material having a density of 7 0 oz per sq yd this was again backfilled and finally coated with the same material when it was finished it had a thickness of 11 8 mils and a finished density of 8 5 oz per sq yd a textile material having the same weave and thread count as set forth in example 1 was selected and the method was the same as in that example however the backfilling component was made as follows backfilling component amount wt water 71 5 corn starch 9 2 wheat starch 6.