20 9cm sup 3 gweighted ave fiber 3 0 1 3 2 4length mm______________________________________ the debonded crosslinked pulp retained 80 of the fiber length of the control sample with very little more disintegration energy being required to redisperse the sheets in water the crosslinked samples without debonder had only 43 of the average fiber length of the control samples this major reduction is probably due to the very much higher energy required to obtain a smooth knot free fiber slurry a set of experiments was made to show the relative effectiveness of other types of quaternary debonding agents when used in conjunction with the arotex 900 dimethyloldihydroxyethyleneurea dmdheu latent crosslinking agent the type numbers listed below refer to those noted earlier in the description of preferred embodiments variquat and adogen are registered trademarks of sherex chemical company variquat 638 is described as a methyl bis 2 hydroxyethyl coco ammonium chloride having 74 75 quaternary material adogen 471 is a tallow trimethyl ammonium chloride with 49 52 quaternary material varisoft 222 90 is a methyl his tallow amidoethyl 2 hydroxyethyl ammonium methyl sulfate with 89 91 solids quaker 2006 is an imidazoline type debonder available from quaker chemical co conshohocken pa table ix______________________________________effect of quaternary debonder type withdmdheu crosslinking agent disintegration bulk.