This invention relates to a novel composition for the production of planar
structures, whereby said composition is based on a cationic amylaceous
material and a sulphonated amylaceous such as sulphocarboxylate. The
composition can exist in the form of a pulverulent solid mixture or an
aqueous suspension in which both amylaceous materials take the form of
granules which are swollen or unswollen. Said composition can also exist
in the form of an adhesive which can or cannot contain granular structures
which are swollen or unswollen and/or complexes which associate both
amylaceous materials. Said complexes flocculate and precipitate generally
during the solubilization stage which can advantageously consist of a
continuous or discontinuous curing stage. The use of said compositions and
flocculated/precipitated complexes that they can contain allows planar
structures, especially structures made of paper, cardboard or films, to be
provided with physical characteristics that meet the needs of current
usage in every way. Said compositions can be introduced into a fibrous
mass either on one occasion or on a number of occasions at a rate of 2-12
wt. % (sec/sec) for internal treatment of paper.
