Coating process for regenerated cellulose film
Abstract
Abstract A PROCESS FOR COATING A WATER-ABSORBENT SUPPORT, E.G., REGENERATED CELLULOSE FILMS, WITH AN AQUEOUS SOLUTION OR DISPERSION WHEREBY THE SUPPORT POSES LITTLE OR NO TENDENCY TO ROLL UP UPON ITSELF, WHICH COMPRISES COATING THE SUPPORT WITH SUCH AQUEOUS SOLUTION OR DISPERSION ALONG ITS ENTIRE WIDTH ON BOTH FACES SUCCESSIVELY AND WITHOUT INTERMEDIATE DRYING, THE SUPPORT, AFTER BEING COATED ON ONE FACE TRAVELING OVER A SUPPORTED PATH WHICH IS OF SUFFICIENT LENGTH TO PERMIT THE DEPOSITED COATING TO REACH A DEGEE OF COALESCENCE SO THAT THE COATING WILL NOT BE ALTERED BY PASSAGE OF A DETOUR ROLL; COATING THE SECOND FACE WHILE ALLOWING COALESCENCE THEREOF IN SUBSTANTIALLY THE SAME MANNER, AND DRYING THE COATED SUPPORT.
Inventors
- 👤 Yves Mahe
- 👤 Gilbert Letourneur
- 👤 Jean-Luc Devillas
Bibliographic Details
Claims Analysis
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