Method for treating fabric with viscous liquid polymers

Details Method for treating fabric with viscous liquid polymers Method for treating fabric with viscous liquid polymers

F - Mech Eng,Light,Heat,Weapons

41

H

F41H 5/04 (2006.01) A41D 31/00 (2006.01)

Patent

CA 2618049

A process of treating a woven fabric by applying to the fabric a viscous polymer in a 5 to 40 wt% solution with a solvent, wherein the polymer has a T9 in the range of about minus 40 to about 0~C and a zero shear melt viscosity of about 2 x 106 to about 1013 poise when measured at 2O~C and then evaporating the solvent such that the polymer only partially penetrates the fabric and penetrates to in and between fiber bundles before the polymer solidifies.

La présente invention concerne un procédé de traitement d'un tissu tissé par l'application sur le tissu d'un polymère visqueux dans une solution de 5 à 40 % en poids avec un solvant, le polymère ayant une T9 allant d'environ -40 à environ 0 °C et une viscosité à l'état fondu sans cisaillement allant d'environ 2 x 106 à environ 1013 poise lorsqu'elle est mesurée à 20 °C et ensuite par l'évaporation du solvant de telle sorte que le polymère pénètre seulement partiellement le tissu et pénètre dans et entre les paquets de fibres avant que le polymère se solidifie.

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