| abstract |
Yarns and textile fibre sizing composition consisting of an aqueous dispersion with a macromolecular arrangement comprising an ethylenically unsaturated (meth)acrylic/carboxylic copolymer, blended, within the macromolecular arrangement, with or at least partially grafted onto a water dispersible sulphonated polyester with a PERSOZ hardness of at least 60, the gravimetric content of the macromolecular arrangement, in ethylenically unsaturated carboxlic acid-derivated units, being at least 10 %, the nature of the (meth)acrylic copolymer being such that the macromolecular arrangement has a PERSOZ hardeness at least equal to that of the water-dispersible sulphonated polyester. The invention also concerns a method of textile fiber sizing by immersion of the yarns in the composition at the desired temperature, followed by hydro-extraction by passing the yarns through hydro-extracting rollers and then drying the sized yarns over heating cylinders. |