D21H5/2678 - CPC Classification

Special paper or cardboard not otherwise provided for; Special paper or cardboard manufactured by dry method; Apparatus or processes for forming webs by dry method from mainly short-fibre or particle material, e.g. paper pulp Manufacture of layered products (assembly of superposed sheets), comprising the consolidation of such a structure

• D21H5/2685 » {by dry method on to a web or on or between several preformed webs, at least one of which has been formed by another method, e.g. by wet method} 1
• D21H5/2692 » {Assembly of several preformed webs, at least one of which has been formed by dry method} 0

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