Paper substrates useful in wallboard tape applications

The invention relates to suitable for producing and/or transforming wall plate is added of paper product and/or paper substrate, wherein the wall and belt is can be symmetrically coupled with the drying belt plate, wherein the paper product and/or the paper substrate metal's pH value at least 7.0, and comprises a plenty cellulosic fibres and wet strength additive, the alkali sizing agent and anion formula, wherein the invention relates to a paper product and/or the paper substrate preparation method and application method thereof.