D21H5/2607 - 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 Pretreatment and individualisation of the fibres, formation of the mixture fibres-gas and laying the fibres on a forming surface

• D21H5/2614 » {Detachment of the fibres from their compressed state, e.g. by disintegration of a pulpboard } 0
• D21H5/2621 » {Distribution of the fibres in the gas stream and on the forming surface} 1
• D21H5/2628 » {Formation of a product from several constituents, e.g. blends of various types of fibres, fillers and/or binders or formation from various sources and/or streams or fibres } 0

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