REDUCING THE WATER AND WATER VAPOUR ABSORBENCE AND ENHANCING THE DIMENSIONAL STABILITY OF PAPER AND PAPER PRODUCTS AND USE OF COATED PAPER PRODUCTS

摘要

The invention concerns a process for reducing the water and water vapour absorbence and enhancing the dimensional stability of paper and paper products by treatment with an aqueous solution and/or dispersion of at least one reactive material capable of reacting with itself and/or with cellulose fibres by crosslinking, which comprises compressing cellulose fibres or a paper product obtained therefrom by dewatering on a wire, then contacting the compressed paper product with an aqueous solution and/or dispersion of the reactive material, decompressing under continued contact with the aqueous solution and/or dispersion, and drying and crosslinking the paper product; and also the use of the coated paper products thus obtainable and/or of the coated cellulose fibres obtainable therefrom by fibrization, in thermoplastics and thermosets.