| abstract |
Pressed fibrous sheet having a basis weight between 20 and 1000 g / m2 that disintegrates in water comprising, from 10% to 70% water soluble starch based on the total weight of the dry fibrous sheet, said sheet being manufactured according to a wet paper manufacturing process comprising at least 30% of papermaking fibers, in particular cellulosic fibers, said sheet having the following characteristics "a, b and c" a. the disintegration time in water, measured in accordance with NF Q34-020 applied to a sample of the 9 x 8 cm2 sheet, is less than 50 seconds, preferably less than 35 seconds and more particularly less than 15 seconds, b . the loss of resistance measured in accordance with the table test reported in the specification corresponds to the loss of resistance of a sample of said sheet forming an angle of at least 85 °, preferably between 88 ° and 90 ° after having been moistened with water for a duration of 6 seconds, c. The residual wet strength with respect to its dry strength, as measured according to the ring compression test described in the specification, is less than 1%. |