Vinyl is the best paper to use in kitchens and bathrooms because it is extremely resistant to water and steam. If non-vinyl paper is used, it may bubble from the wall after hot water has been running. This is the result of steam getting through the porous paper and softening the paste behind it.
Cure this by applying two coats of varnish to the paper when it is dry to make it waterproof. Remember, however, that if the colour of the paper is important. The coats of varnish will tend to darken it.