Examples of other formaldehyde-reactive agents which can be incorporated in accordance with the present invention are amino acids such as glycine and derivatives thereof such as glycine ethyl ester hydrochloride, alanine, asparagine, etc.; proteins such as collagen, gelatin, casein, etc.; urea hydrogen peroxide (carbamate peroxide); thiourea; carbamic esters (urethanes); cyanamide, dicyanamide, an