Special paper not otherwise provided for, e.g. made by multi-step processes

Child Classifications

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• D21H 27/001
• D21H 27/002
• D21H 27/02 Patterned paper (patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00)
• D21H 27/06 Vegetable or imitation parchment; Glassine paper
• D21H 27/08 Filter paper (self-supporting filtering material B01D39/14; making on paper-making machines D21F11/14)
• D21H 27/10 Packing paper (packaging materials of special type or form B65D65/38)
• D21H 27/14 Paper having stable form or dimension; Curl-resistant paper (anticoil photographic support G03C1/81)
• D21H 27/16 Pure paper, i.e. paper lacking or having low content of contaminants (after-treatment of cellulose pulp D21C9/00)
• D21H 27/18 Paper- or board-based structures for surface covering
• D21H 27/30 Multi-ply (for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00)